/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Sema/SemaType.cpp
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1 | | //===--- SemaType.cpp - Semantic Analysis for Types -----------------------===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | // |
9 | | // This file implements type-related semantic analysis. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #include "TypeLocBuilder.h" |
14 | | #include "clang/AST/ASTConsumer.h" |
15 | | #include "clang/AST/ASTContext.h" |
16 | | #include "clang/AST/ASTMutationListener.h" |
17 | | #include "clang/AST/ASTStructuralEquivalence.h" |
18 | | #include "clang/AST/CXXInheritance.h" |
19 | | #include "clang/AST/Decl.h" |
20 | | #include "clang/AST/DeclObjC.h" |
21 | | #include "clang/AST/DeclTemplate.h" |
22 | | #include "clang/AST/Expr.h" |
23 | | #include "clang/AST/Type.h" |
24 | | #include "clang/AST/TypeLoc.h" |
25 | | #include "clang/AST/TypeLocVisitor.h" |
26 | | #include "clang/Basic/PartialDiagnostic.h" |
27 | | #include "clang/Basic/SourceLocation.h" |
28 | | #include "clang/Basic/Specifiers.h" |
29 | | #include "clang/Basic/TargetInfo.h" |
30 | | #include "clang/Lex/Preprocessor.h" |
31 | | #include "clang/Sema/DeclSpec.h" |
32 | | #include "clang/Sema/DelayedDiagnostic.h" |
33 | | #include "clang/Sema/Lookup.h" |
34 | | #include "clang/Sema/ParsedTemplate.h" |
35 | | #include "clang/Sema/ScopeInfo.h" |
36 | | #include "clang/Sema/SemaInternal.h" |
37 | | #include "clang/Sema/Template.h" |
38 | | #include "clang/Sema/TemplateInstCallback.h" |
39 | | #include "llvm/ADT/ArrayRef.h" |
40 | | #include "llvm/ADT/SmallPtrSet.h" |
41 | | #include "llvm/ADT/SmallString.h" |
42 | | #include "llvm/ADT/StringExtras.h" |
43 | | #include "llvm/IR/DerivedTypes.h" |
44 | | #include "llvm/Support/Casting.h" |
45 | | #include "llvm/Support/ErrorHandling.h" |
46 | | #include <bitset> |
47 | | #include <optional> |
48 | | |
49 | | using namespace clang; |
50 | | |
51 | | enum TypeDiagSelector { |
52 | | TDS_Function, |
53 | | TDS_Pointer, |
54 | | TDS_ObjCObjOrBlock |
55 | | }; |
56 | | |
57 | | /// isOmittedBlockReturnType - Return true if this declarator is missing a |
58 | | /// return type because this is a omitted return type on a block literal. |
59 | 3.45k | static bool isOmittedBlockReturnType(const Declarator &D) { |
60 | 3.45k | if (D.getContext() != DeclaratorContext::BlockLiteral || |
61 | 3.45k | D.getDeclSpec().hasTypeSpecifier()3.07k ) |
62 | 382 | return false; |
63 | | |
64 | 3.07k | if (D.getNumTypeObjects() == 0) |
65 | 5 | return true; // ^{ ... } |
66 | | |
67 | 3.07k | if (D.getNumTypeObjects() == 1 && |
68 | 3.07k | D.getTypeObject(0).Kind == DeclaratorChunk::Function3.07k ) |
69 | 3.07k | return true; // ^(int X, float Y) { ... } |
70 | | |
71 | 1 | return false; |
72 | 3.07k | } |
73 | | |
74 | | /// diagnoseBadTypeAttribute - Diagnoses a type attribute which |
75 | | /// doesn't apply to the given type. |
76 | | static void diagnoseBadTypeAttribute(Sema &S, const ParsedAttr &attr, |
77 | 134 | QualType type) { |
78 | 134 | TypeDiagSelector WhichType; |
79 | 134 | bool useExpansionLoc = true; |
80 | 134 | switch (attr.getKind()) { |
81 | 1 | case ParsedAttr::AT_ObjCGC: |
82 | 1 | WhichType = TDS_Pointer; |
83 | 1 | break; |
84 | 6 | case ParsedAttr::AT_ObjCOwnership: |
85 | 6 | WhichType = TDS_ObjCObjOrBlock; |
86 | 6 | break; |
87 | 127 | default: |
88 | | // Assume everything else was a function attribute. |
89 | 127 | WhichType = TDS_Function; |
90 | 127 | useExpansionLoc = false; |
91 | 127 | break; |
92 | 134 | } |
93 | | |
94 | 134 | SourceLocation loc = attr.getLoc(); |
95 | 134 | StringRef name = attr.getAttrName()->getName(); |
96 | | |
97 | | // The GC attributes are usually written with macros; special-case them. |
98 | 134 | IdentifierInfo *II = attr.isArgIdent(0) ? attr.getArgAsIdent(0)->Ident7 |
99 | 134 | : nullptr127 ; |
100 | 134 | if (useExpansionLoc && loc.isMacroID()7 && II5 ) { |
101 | 5 | if (II->isStr("strong")) { |
102 | 2 | if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; |
103 | 3 | } else if (II->isStr("weak")) { |
104 | 3 | if (S.findMacroSpelling(loc, "__weak")) name = "__weak"2 ; |
105 | 3 | } |
106 | 5 | } |
107 | | |
108 | 134 | S.Diag(loc, attr.isRegularKeywordAttribute() |
109 | 134 | ? diag::err_type_attribute_wrong_type98 |
110 | 134 | : diag::warn_type_attribute_wrong_type36 ) |
111 | 134 | << name << WhichType << type; |
112 | 134 | } |
113 | | |
114 | | // objc_gc applies to Objective-C pointers or, otherwise, to the |
115 | | // smallest available pointer type (i.e. 'void*' in 'void**'). |
116 | | #define OBJC_POINTER_TYPE_ATTRS_CASELIST \ |
117 | 294 | case ParsedAttr::AT_ObjCGC: \ |
118 | 8.24k | case ParsedAttr::AT_ObjCOwnership |
119 | | |
120 | | // Calling convention attributes. |
121 | | #define CALLING_CONV_ATTRS_CASELIST \ |
122 | 1.35M | case ParsedAttr::AT_CDecl: \ |
123 | 1.35M | case ParsedAttr::AT_FastCall: \ |
124 | 1.35M | case ParsedAttr::AT_StdCall: \ |
125 | 1.35M | case ParsedAttr::AT_ThisCall: \ |
126 | 1.36M | case ParsedAttr::AT_RegCall: \ |
127 | 1.36M | case ParsedAttr::AT_Pascal: \ |
128 | 1.36M | case ParsedAttr::AT_SwiftCall: \ |
129 | 1.36M | case ParsedAttr::AT_SwiftAsyncCall: \ |
130 | 1.36M | case ParsedAttr::AT_VectorCall: \ |
131 | 1.36M | case ParsedAttr::AT_AArch64VectorPcs: \ |
132 | 1.36M | case ParsedAttr::AT_AArch64SVEPcs: \ |
133 | 1.36M | case ParsedAttr::AT_AMDGPUKernelCall: \ |
134 | 1.36M | case ParsedAttr::AT_MSABI: \ |
135 | 1.36M | case ParsedAttr::AT_SysVABI: \ |
136 | 1.36M | case ParsedAttr::AT_Pcs: \ |
137 | 1.36M | case ParsedAttr::AT_IntelOclBicc: \ |
138 | 1.36M | case ParsedAttr::AT_PreserveMost: \ |
139 | 1.36M | case ParsedAttr::AT_PreserveAll: \ |
140 | 1.36M | case ParsedAttr::AT_M68kRTD |
141 | | |
142 | | // Function type attributes. |
143 | | #define FUNCTION_TYPE_ATTRS_CASELIST \ |
144 | 102k | case ParsedAttr::AT_NSReturnsRetained: \ |
145 | 116k | case ParsedAttr::AT_NoReturn: \ |
146 | 116k | case ParsedAttr::AT_Regparm: \ |
147 | 116k | case ParsedAttr::AT_CmseNSCall: \ |
148 | 117k | case ParsedAttr::AT_ArmStreaming: \ |
149 | 1.35M | case ParsedAttr::AT_ArmStreamingCompatible: \ |
150 | 1.35M | case ParsedAttr::AT_ArmSharedZA: \ |
151 | 1.35M | case ParsedAttr::AT_ArmPreservesZA: \ |
152 | 1.35M | case ParsedAttr::AT_AnyX86NoCallerSavedRegisters: \ |
153 | 1.35M | case ParsedAttr::AT_AnyX86NoCfCheck: \ |
154 | 1.35M | CALLING_CONV_ATTRS_CASELIST |
155 | | |
156 | | // Microsoft-specific type qualifiers. |
157 | | #define MS_TYPE_ATTRS_CASELIST \ |
158 | 67 | case ParsedAttr::AT_Ptr32: \ |
159 | 105 | case ParsedAttr::AT_Ptr64: \ |
160 | 129 | case ParsedAttr::AT_SPtr: \ |
161 | 147 | case ParsedAttr::AT_UPtr |
162 | | |
163 | | // Nullability qualifiers. |
164 | | #define NULLABILITY_TYPE_ATTRS_CASELIST \ |
165 | 1.04M | case ParsedAttr::AT_TypeNonNull: \ |
166 | 1.99M | case ParsedAttr::AT_TypeNullable: \ |
167 | 1.99M | case ParsedAttr::AT_TypeNullableResult: \ |
168 | 2.04M | case ParsedAttr::AT_TypeNullUnspecified |
169 | | |
170 | | namespace { |
171 | | /// An object which stores processing state for the entire |
172 | | /// GetTypeForDeclarator process. |
173 | | class TypeProcessingState { |
174 | | Sema &sema; |
175 | | |
176 | | /// The declarator being processed. |
177 | | Declarator &declarator; |
178 | | |
179 | | /// The index of the declarator chunk we're currently processing. |
180 | | /// May be the total number of valid chunks, indicating the |
181 | | /// DeclSpec. |
182 | | unsigned chunkIndex; |
183 | | |
184 | | /// The original set of attributes on the DeclSpec. |
185 | | SmallVector<ParsedAttr *, 2> savedAttrs; |
186 | | |
187 | | /// A list of attributes to diagnose the uselessness of when the |
188 | | /// processing is complete. |
189 | | SmallVector<ParsedAttr *, 2> ignoredTypeAttrs; |
190 | | |
191 | | /// Attributes corresponding to AttributedTypeLocs that we have not yet |
192 | | /// populated. |
193 | | // FIXME: The two-phase mechanism by which we construct Types and fill |
194 | | // their TypeLocs makes it hard to correctly assign these. We keep the |
195 | | // attributes in creation order as an attempt to make them line up |
196 | | // properly. |
197 | | using TypeAttrPair = std::pair<const AttributedType*, const Attr*>; |
198 | | SmallVector<TypeAttrPair, 8> AttrsForTypes; |
199 | | bool AttrsForTypesSorted = true; |
200 | | |
201 | | /// MacroQualifiedTypes mapping to macro expansion locations that will be |
202 | | /// stored in a MacroQualifiedTypeLoc. |
203 | | llvm::DenseMap<const MacroQualifiedType *, SourceLocation> LocsForMacros; |
204 | | |
205 | | /// Flag to indicate we parsed a noderef attribute. This is used for |
206 | | /// validating that noderef was used on a pointer or array. |
207 | | bool parsedNoDeref; |
208 | | |
209 | | public: |
210 | | TypeProcessingState(Sema &sema, Declarator &declarator) |
211 | 155M | : sema(sema), declarator(declarator), |
212 | 155M | chunkIndex(declarator.getNumTypeObjects()), parsedNoDeref(false) {} |
213 | | |
214 | 664M | Sema &getSema() const { |
215 | 664M | return sema; |
216 | 664M | } |
217 | | |
218 | 1.15G | Declarator &getDeclarator() const { |
219 | 1.15G | return declarator; |
220 | 1.15G | } |
221 | | |
222 | 159M | bool isProcessingDeclSpec() const { |
223 | 159M | return chunkIndex == declarator.getNumTypeObjects(); |
224 | 159M | } |
225 | | |
226 | 1.55M | unsigned getCurrentChunkIndex() const { |
227 | 1.55M | return chunkIndex; |
228 | 1.55M | } |
229 | | |
230 | 49.5M | void setCurrentChunkIndex(unsigned idx) { |
231 | 49.5M | assert(idx <= declarator.getNumTypeObjects()); |
232 | 49.5M | chunkIndex = idx; |
233 | 49.5M | } |
234 | | |
235 | 159M | ParsedAttributesView &getCurrentAttributes() const { |
236 | 159M | if (isProcessingDeclSpec()) |
237 | 156M | return getMutableDeclSpec().getAttributes(); |
238 | 3.71M | return declarator.getTypeObject(chunkIndex).getAttrs(); |
239 | 159M | } |
240 | | |
241 | | /// Save the current set of attributes on the DeclSpec. |
242 | 45.6k | void saveDeclSpecAttrs() { |
243 | | // Don't try to save them multiple times. |
244 | 45.6k | if (!savedAttrs.empty()) |
245 | 626 | return; |
246 | | |
247 | 45.0k | DeclSpec &spec = getMutableDeclSpec(); |
248 | 45.0k | llvm::append_range(savedAttrs, |
249 | 45.0k | llvm::make_pointer_range(spec.getAttributes())); |
250 | 45.0k | } |
251 | | |
252 | | /// Record that we had nowhere to put the given type attribute. |
253 | | /// We will diagnose such attributes later. |
254 | 28 | void addIgnoredTypeAttr(ParsedAttr &attr) { |
255 | 28 | ignoredTypeAttrs.push_back(&attr); |
256 | 28 | } |
257 | | |
258 | | /// Diagnose all the ignored type attributes, given that the |
259 | | /// declarator worked out to the given type. |
260 | 155M | void diagnoseIgnoredTypeAttrs(QualType type) const { |
261 | 155M | for (auto *Attr : ignoredTypeAttrs) |
262 | 28 | diagnoseBadTypeAttribute(getSema(), *Attr, type); |
263 | 155M | } |
264 | | |
265 | | /// Get an attributed type for the given attribute, and remember the Attr |
266 | | /// object so that we can attach it to the AttributedTypeLoc. |
267 | | QualType getAttributedType(Attr *A, QualType ModifiedType, |
268 | 3.27M | QualType EquivType) { |
269 | 3.27M | QualType T = |
270 | 3.27M | sema.Context.getAttributedType(A->getKind(), ModifiedType, EquivType); |
271 | 3.27M | AttrsForTypes.push_back({cast<AttributedType>(T.getTypePtr()), A}); |
272 | 3.27M | AttrsForTypesSorted = false; |
273 | 3.27M | return T; |
274 | 3.27M | } |
275 | | |
276 | | /// Get a BTFTagAttributed type for the btf_type_tag attribute. |
277 | | QualType getBTFTagAttributedType(const BTFTypeTagAttr *BTFAttr, |
278 | 67 | QualType WrappedType) { |
279 | 67 | return sema.Context.getBTFTagAttributedType(BTFAttr, WrappedType); |
280 | 67 | } |
281 | | |
282 | | /// Completely replace the \c auto in \p TypeWithAuto by |
283 | | /// \p Replacement. Also replace \p TypeWithAuto in \c TypeAttrPair if |
284 | | /// necessary. |
285 | 3.28k | QualType ReplaceAutoType(QualType TypeWithAuto, QualType Replacement) { |
286 | 3.28k | QualType T = sema.ReplaceAutoType(TypeWithAuto, Replacement); |
287 | 3.28k | if (auto *AttrTy = TypeWithAuto->getAs<AttributedType>()) { |
288 | | // Attributed type still should be an attributed type after replacement. |
289 | 1 | auto *NewAttrTy = cast<AttributedType>(T.getTypePtr()); |
290 | 1 | for (TypeAttrPair &A : AttrsForTypes) { |
291 | 1 | if (A.first == AttrTy) |
292 | 1 | A.first = NewAttrTy; |
293 | 1 | } |
294 | 1 | AttrsForTypesSorted = false; |
295 | 1 | } |
296 | 3.28k | return T; |
297 | 3.28k | } |
298 | | |
299 | | /// Extract and remove the Attr* for a given attributed type. |
300 | 3.27M | const Attr *takeAttrForAttributedType(const AttributedType *AT) { |
301 | 3.27M | if (!AttrsForTypesSorted) { |
302 | 3.13M | llvm::stable_sort(AttrsForTypes, llvm::less_first()); |
303 | 3.13M | AttrsForTypesSorted = true; |
304 | 3.13M | } |
305 | | |
306 | | // FIXME: This is quadratic if we have lots of reuses of the same |
307 | | // attributed type. |
308 | 3.27M | for (auto It = std::partition_point( |
309 | 3.27M | AttrsForTypes.begin(), AttrsForTypes.end(), |
310 | 3.56M | [=](const TypeAttrPair &A) { return A.first < AT; }); |
311 | 3.27M | It != AttrsForTypes.end() && It->first == AT; ++It0 ) { |
312 | 3.27M | if (It->second) { |
313 | 3.27M | const Attr *Result = It->second; |
314 | 3.27M | It->second = nullptr; |
315 | 3.27M | return Result; |
316 | 3.27M | } |
317 | 3.27M | } |
318 | | |
319 | 0 | llvm_unreachable("no Attr* for AttributedType*"); |
320 | 0 | } |
321 | | |
322 | | SourceLocation |
323 | 238k | getExpansionLocForMacroQualifiedType(const MacroQualifiedType *MQT) const { |
324 | 238k | auto FoundLoc = LocsForMacros.find(MQT); |
325 | 238k | assert(FoundLoc != LocsForMacros.end() && |
326 | 238k | "Unable to find macro expansion location for MacroQualifedType"); |
327 | 238k | return FoundLoc->second; |
328 | 238k | } |
329 | | |
330 | | void setExpansionLocForMacroQualifiedType(const MacroQualifiedType *MQT, |
331 | 238k | SourceLocation Loc) { |
332 | 238k | LocsForMacros[MQT] = Loc; |
333 | 238k | } |
334 | | |
335 | 672M | void setParsedNoDeref(bool parsed) { parsedNoDeref = parsed; } |
336 | | |
337 | 49.2M | bool didParseNoDeref() const { return parsedNoDeref; } |
338 | | |
339 | 155M | ~TypeProcessingState() { |
340 | 155M | if (savedAttrs.empty()) |
341 | 155M | return; |
342 | | |
343 | 44.9k | getMutableDeclSpec().getAttributes().clearListOnly(); |
344 | 44.9k | for (ParsedAttr *AL : savedAttrs) |
345 | 171k | getMutableDeclSpec().getAttributes().addAtEnd(AL); |
346 | 44.9k | } |
347 | | |
348 | | private: |
349 | 156M | DeclSpec &getMutableDeclSpec() const { |
350 | 156M | return const_cast<DeclSpec&>(declarator.getDeclSpec()); |
351 | 156M | } |
352 | | }; |
353 | | } // end anonymous namespace |
354 | | |
355 | | static void moveAttrFromListToList(ParsedAttr &attr, |
356 | | ParsedAttributesView &fromList, |
357 | 54.1k | ParsedAttributesView &toList) { |
358 | 54.1k | fromList.remove(&attr); |
359 | 54.1k | toList.addAtEnd(&attr); |
360 | 54.1k | } |
361 | | |
362 | | /// The location of a type attribute. |
363 | | enum TypeAttrLocation { |
364 | | /// The attribute is in the decl-specifier-seq. |
365 | | TAL_DeclSpec, |
366 | | /// The attribute is part of a DeclaratorChunk. |
367 | | TAL_DeclChunk, |
368 | | /// The attribute is immediately after the declaration's name. |
369 | | TAL_DeclName |
370 | | }; |
371 | | |
372 | | static void |
373 | | processTypeAttrs(TypeProcessingState &state, QualType &type, |
374 | | TypeAttrLocation TAL, const ParsedAttributesView &attrs, |
375 | | Sema::CUDAFunctionTarget CFT = Sema::CFT_HostDevice); |
376 | | |
377 | | static bool handleFunctionTypeAttr(TypeProcessingState &state, ParsedAttr &attr, |
378 | | QualType &type, |
379 | | Sema::CUDAFunctionTarget CFT); |
380 | | |
381 | | static bool handleMSPointerTypeQualifierAttr(TypeProcessingState &state, |
382 | | ParsedAttr &attr, QualType &type); |
383 | | |
384 | | static bool handleObjCGCTypeAttr(TypeProcessingState &state, ParsedAttr &attr, |
385 | | QualType &type); |
386 | | |
387 | | static bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, |
388 | | ParsedAttr &attr, QualType &type); |
389 | | |
390 | | static bool handleObjCPointerTypeAttr(TypeProcessingState &state, |
391 | 8.24k | ParsedAttr &attr, QualType &type) { |
392 | 8.24k | if (attr.getKind() == ParsedAttr::AT_ObjCGC) |
393 | 294 | return handleObjCGCTypeAttr(state, attr, type); |
394 | 7.94k | assert(attr.getKind() == ParsedAttr::AT_ObjCOwnership); |
395 | 7.94k | return handleObjCOwnershipTypeAttr(state, attr, type); |
396 | 7.94k | } |
397 | | |
398 | | /// Given the index of a declarator chunk, check whether that chunk |
399 | | /// directly specifies the return type of a function and, if so, find |
400 | | /// an appropriate place for it. |
401 | | /// |
402 | | /// \param i - a notional index which the search will start |
403 | | /// immediately inside |
404 | | /// |
405 | | /// \param onlyBlockPointers Whether we should only look into block |
406 | | /// pointer types (vs. all pointer types). |
407 | | static DeclaratorChunk *maybeMovePastReturnType(Declarator &declarator, |
408 | | unsigned i, |
409 | 5.40k | bool onlyBlockPointers) { |
410 | 5.40k | assert(i <= declarator.getNumTypeObjects()); |
411 | | |
412 | 5.40k | DeclaratorChunk *result = nullptr; |
413 | | |
414 | | // First, look inwards past parens for a function declarator. |
415 | 5.43k | for (; i != 0; --i37 ) { |
416 | 3.79k | DeclaratorChunk &fnChunk = declarator.getTypeObject(i-1); |
417 | 3.79k | switch (fnChunk.Kind) { |
418 | 9 | case DeclaratorChunk::Paren: |
419 | 9 | continue; |
420 | | |
421 | | // If we find anything except a function, bail out. |
422 | 1.55k | case DeclaratorChunk::Pointer: |
423 | 1.55k | case DeclaratorChunk::BlockPointer: |
424 | 3.57k | case DeclaratorChunk::Array: |
425 | 3.74k | case DeclaratorChunk::Reference: |
426 | 3.74k | case DeclaratorChunk::MemberPointer: |
427 | 3.74k | case DeclaratorChunk::Pipe: |
428 | 3.74k | return result; |
429 | | |
430 | | // If we do find a function declarator, scan inwards from that, |
431 | | // looking for a (block-)pointer declarator. |
432 | 42 | case DeclaratorChunk::Function: |
433 | 78 | for (--i; i != 0; --i36 ) { |
434 | 64 | DeclaratorChunk &ptrChunk = declarator.getTypeObject(i-1); |
435 | 64 | switch (ptrChunk.Kind) { |
436 | 32 | case DeclaratorChunk::Paren: |
437 | 32 | case DeclaratorChunk::Array: |
438 | 32 | case DeclaratorChunk::Function: |
439 | 32 | case DeclaratorChunk::Reference: |
440 | 32 | case DeclaratorChunk::Pipe: |
441 | 32 | continue; |
442 | | |
443 | 2 | case DeclaratorChunk::MemberPointer: |
444 | 10 | case DeclaratorChunk::Pointer: |
445 | 10 | if (onlyBlockPointers) |
446 | 4 | continue; |
447 | | |
448 | 10 | [[fallthrough]];6 |
449 | | |
450 | 28 | case DeclaratorChunk::BlockPointer: |
451 | 28 | result = &ptrChunk; |
452 | 28 | goto continue_outer; |
453 | 64 | } |
454 | 0 | llvm_unreachable("bad declarator chunk kind"); |
455 | 0 | } |
456 | | |
457 | | // If we run out of declarators doing that, we're done. |
458 | 14 | return result; |
459 | 3.79k | } |
460 | 0 | llvm_unreachable("bad declarator chunk kind"); |
461 | | |
462 | | // Okay, reconsider from our new point. |
463 | 28 | continue_outer: ; |
464 | 28 | } |
465 | | |
466 | | // Ran out of chunks, bail out. |
467 | 1.64k | return result; |
468 | 5.40k | } |
469 | | |
470 | | /// Given that an objc_gc attribute was written somewhere on a |
471 | | /// declaration *other* than on the declarator itself (for which, use |
472 | | /// distributeObjCPointerTypeAttrFromDeclarator), and given that it |
473 | | /// didn't apply in whatever position it was written in, try to move |
474 | | /// it to a more appropriate position. |
475 | | static void distributeObjCPointerTypeAttr(TypeProcessingState &state, |
476 | 1.62k | ParsedAttr &attr, QualType type) { |
477 | 1.62k | Declarator &declarator = state.getDeclarator(); |
478 | | |
479 | | // Move it to the outermost normal or block pointer declarator. |
480 | 1.62k | for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i0 ) { |
481 | 1.62k | DeclaratorChunk &chunk = declarator.getTypeObject(i-1); |
482 | 1.62k | switch (chunk.Kind) { |
483 | 1.61k | case DeclaratorChunk::Pointer: |
484 | 1.61k | case DeclaratorChunk::BlockPointer: { |
485 | | // But don't move an ARC ownership attribute to the return type |
486 | | // of a block. |
487 | 1.61k | DeclaratorChunk *destChunk = nullptr; |
488 | 1.61k | if (state.isProcessingDeclSpec() && |
489 | 1.61k | attr.getKind() == ParsedAttr::AT_ObjCOwnership) |
490 | 1.54k | destChunk = maybeMovePastReturnType(declarator, i - 1, |
491 | 1.54k | /*onlyBlockPointers=*/true); |
492 | 1.61k | if (!destChunk) destChunk = &chunk1.61k ; |
493 | | |
494 | 1.61k | moveAttrFromListToList(attr, state.getCurrentAttributes(), |
495 | 1.61k | destChunk->getAttrs()); |
496 | 1.61k | return; |
497 | 1.61k | } |
498 | | |
499 | 0 | case DeclaratorChunk::Paren: |
500 | 0 | case DeclaratorChunk::Array: |
501 | 0 | continue; |
502 | | |
503 | | // We may be starting at the return type of a block. |
504 | 8 | case DeclaratorChunk::Function: |
505 | 8 | if (state.isProcessingDeclSpec() && |
506 | 8 | attr.getKind() == ParsedAttr::AT_ObjCOwnership) { |
507 | 8 | if (DeclaratorChunk *dest = maybeMovePastReturnType( |
508 | 8 | declarator, i, |
509 | 8 | /*onlyBlockPointers=*/true)) { |
510 | 8 | moveAttrFromListToList(attr, state.getCurrentAttributes(), |
511 | 8 | dest->getAttrs()); |
512 | 8 | return; |
513 | 8 | } |
514 | 8 | } |
515 | 0 | goto error; |
516 | | |
517 | | // Don't walk through these. |
518 | 0 | case DeclaratorChunk::Reference: |
519 | 0 | case DeclaratorChunk::MemberPointer: |
520 | 0 | case DeclaratorChunk::Pipe: |
521 | 0 | goto error; |
522 | 1.62k | } |
523 | 1.62k | } |
524 | 6 | error: |
525 | | |
526 | 6 | diagnoseBadTypeAttribute(state.getSema(), attr, type); |
527 | 6 | } |
528 | | |
529 | | /// Distribute an objc_gc type attribute that was written on the |
530 | | /// declarator. |
531 | | static void distributeObjCPointerTypeAttrFromDeclarator( |
532 | 18 | TypeProcessingState &state, ParsedAttr &attr, QualType &declSpecType) { |
533 | 18 | Declarator &declarator = state.getDeclarator(); |
534 | | |
535 | | // objc_gc goes on the innermost pointer to something that's not a |
536 | | // pointer. |
537 | 18 | unsigned innermost = -1U; |
538 | 18 | bool considerDeclSpec = true; |
539 | 28 | for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i10 ) { |
540 | 15 | DeclaratorChunk &chunk = declarator.getTypeObject(i); |
541 | 15 | switch (chunk.Kind) { |
542 | 0 | case DeclaratorChunk::Pointer: |
543 | 4 | case DeclaratorChunk::BlockPointer: |
544 | 4 | innermost = i; |
545 | 4 | continue; |
546 | | |
547 | 0 | case DeclaratorChunk::Reference: |
548 | 0 | case DeclaratorChunk::MemberPointer: |
549 | 4 | case DeclaratorChunk::Paren: |
550 | 6 | case DeclaratorChunk::Array: |
551 | 6 | case DeclaratorChunk::Pipe: |
552 | 6 | continue; |
553 | | |
554 | 5 | case DeclaratorChunk::Function: |
555 | 5 | considerDeclSpec = false; |
556 | 5 | goto done; |
557 | 15 | } |
558 | 15 | } |
559 | 18 | done: |
560 | | |
561 | | // That might actually be the decl spec if we weren't blocked by |
562 | | // anything in the declarator. |
563 | 18 | if (considerDeclSpec) { |
564 | 13 | if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { |
565 | | // Splice the attribute into the decl spec. Prevents the |
566 | | // attribute from being applied multiple times and gives |
567 | | // the source-location-filler something to work with. |
568 | 13 | state.saveDeclSpecAttrs(); |
569 | 13 | declarator.getMutableDeclSpec().getAttributes().takeOneFrom( |
570 | 13 | declarator.getAttributes(), &attr); |
571 | 13 | return; |
572 | 13 | } |
573 | 13 | } |
574 | | |
575 | | // Otherwise, if we found an appropriate chunk, splice the attribute |
576 | | // into it. |
577 | 5 | if (innermost != -1U) { |
578 | 4 | moveAttrFromListToList(attr, declarator.getAttributes(), |
579 | 4 | declarator.getTypeObject(innermost).getAttrs()); |
580 | 4 | return; |
581 | 4 | } |
582 | | |
583 | | // Otherwise, diagnose when we're done building the type. |
584 | 1 | declarator.getAttributes().remove(&attr); |
585 | 1 | state.addIgnoredTypeAttr(attr); |
586 | 1 | } |
587 | | |
588 | | /// A function type attribute was written somewhere in a declaration |
589 | | /// *other* than on the declarator itself or in the decl spec. Given |
590 | | /// that it didn't apply in whatever position it was written in, try |
591 | | /// to move it to a more appropriate position. |
592 | | static void distributeFunctionTypeAttr(TypeProcessingState &state, |
593 | 34 | ParsedAttr &attr, QualType type) { |
594 | 34 | Declarator &declarator = state.getDeclarator(); |
595 | | |
596 | | // Try to push the attribute from the return type of a function to |
597 | | // the function itself. |
598 | 36 | for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i2 ) { |
599 | 36 | DeclaratorChunk &chunk = declarator.getTypeObject(i-1); |
600 | 36 | switch (chunk.Kind) { |
601 | 34 | case DeclaratorChunk::Function: |
602 | 34 | moveAttrFromListToList(attr, state.getCurrentAttributes(), |
603 | 34 | chunk.getAttrs()); |
604 | 34 | return; |
605 | | |
606 | 2 | case DeclaratorChunk::Paren: |
607 | 2 | case DeclaratorChunk::Pointer: |
608 | 2 | case DeclaratorChunk::BlockPointer: |
609 | 2 | case DeclaratorChunk::Array: |
610 | 2 | case DeclaratorChunk::Reference: |
611 | 2 | case DeclaratorChunk::MemberPointer: |
612 | 2 | case DeclaratorChunk::Pipe: |
613 | 2 | continue; |
614 | 36 | } |
615 | 36 | } |
616 | | |
617 | 0 | diagnoseBadTypeAttribute(state.getSema(), attr, type); |
618 | 0 | } |
619 | | |
620 | | /// Try to distribute a function type attribute to the innermost |
621 | | /// function chunk or type. Returns true if the attribute was |
622 | | /// distributed, false if no location was found. |
623 | | static bool distributeFunctionTypeAttrToInnermost( |
624 | | TypeProcessingState &state, ParsedAttr &attr, |
625 | | ParsedAttributesView &attrList, QualType &declSpecType, |
626 | 52.5k | Sema::CUDAFunctionTarget CFT) { |
627 | 52.5k | Declarator &declarator = state.getDeclarator(); |
628 | | |
629 | | // Put it on the innermost function chunk, if there is one. |
630 | 52.8k | for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i325 ) { |
631 | 52.7k | DeclaratorChunk &chunk = declarator.getTypeObject(i); |
632 | 52.7k | if (chunk.Kind != DeclaratorChunk::Function) continue325 ; |
633 | | |
634 | 52.4k | moveAttrFromListToList(attr, attrList, chunk.getAttrs()); |
635 | 52.4k | return true; |
636 | 52.7k | } |
637 | | |
638 | 62 | return handleFunctionTypeAttr(state, attr, declSpecType, CFT); |
639 | 52.5k | } |
640 | | |
641 | | /// A function type attribute was written in the decl spec. Try to |
642 | | /// apply it somewhere. |
643 | | static void |
644 | | distributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, |
645 | | ParsedAttr &attr, QualType &declSpecType, |
646 | 45.6k | Sema::CUDAFunctionTarget CFT) { |
647 | 45.6k | state.saveDeclSpecAttrs(); |
648 | | |
649 | | // Try to distribute to the innermost. |
650 | 45.6k | if (distributeFunctionTypeAttrToInnermost( |
651 | 45.6k | state, attr, state.getCurrentAttributes(), declSpecType, CFT)) |
652 | 45.6k | return; |
653 | | |
654 | | // If that failed, diagnose the bad attribute when the declarator is |
655 | | // fully built. |
656 | 12 | state.addIgnoredTypeAttr(attr); |
657 | 12 | } |
658 | | |
659 | | /// A function type attribute was written on the declarator or declaration. |
660 | | /// Try to apply it somewhere. |
661 | | /// `Attrs` is the attribute list containing the declaration (either of the |
662 | | /// declarator or the declaration). |
663 | | static void distributeFunctionTypeAttrFromDeclarator( |
664 | | TypeProcessingState &state, ParsedAttr &attr, QualType &declSpecType, |
665 | 6.88k | Sema::CUDAFunctionTarget CFT) { |
666 | 6.88k | Declarator &declarator = state.getDeclarator(); |
667 | | |
668 | | // Try to distribute to the innermost. |
669 | 6.88k | if (distributeFunctionTypeAttrToInnermost( |
670 | 6.88k | state, attr, declarator.getAttributes(), declSpecType, CFT)) |
671 | 6.86k | return; |
672 | | |
673 | | // If that failed, diagnose the bad attribute when the declarator is |
674 | | // fully built. |
675 | 15 | declarator.getAttributes().remove(&attr); |
676 | 15 | state.addIgnoredTypeAttr(attr); |
677 | 15 | } |
678 | | |
679 | | /// Given that there are attributes written on the declarator or declaration |
680 | | /// itself, try to distribute any type attributes to the appropriate |
681 | | /// declarator chunk. |
682 | | /// |
683 | | /// These are attributes like the following: |
684 | | /// int f ATTR; |
685 | | /// int (f ATTR)(); |
686 | | /// but not necessarily this: |
687 | | /// int f() ATTR; |
688 | | /// |
689 | | /// `Attrs` is the attribute list containing the declaration (either of the |
690 | | /// declarator or the declaration). |
691 | | static void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, |
692 | | QualType &declSpecType, |
693 | 155M | Sema::CUDAFunctionTarget CFT) { |
694 | | // The called functions in this loop actually remove things from the current |
695 | | // list, so iterating over the existing list isn't possible. Instead, make a |
696 | | // non-owning copy and iterate over that. |
697 | 155M | ParsedAttributesView AttrsCopy{state.getDeclarator().getAttributes()}; |
698 | 155M | for (ParsedAttr &attr : AttrsCopy) { |
699 | | // Do not distribute [[]] attributes. They have strict rules for what |
700 | | // they appertain to. |
701 | 4.68M | if (attr.isStandardAttributeSyntax() || attr.isRegularKeywordAttribute()4.68M ) |
702 | 307 | continue; |
703 | | |
704 | 4.68M | switch (attr.getKind()) { |
705 | 18 | OBJC_POINTER_TYPE_ATTRS_CASELIST2 : |
706 | 18 | distributeObjCPointerTypeAttrFromDeclarator(state, attr, declSpecType); |
707 | 18 | break; |
708 | | |
709 | 6.88k | FUNCTION_TYPE_ATTRS_CASELIST511 : |
710 | 6.88k | distributeFunctionTypeAttrFromDeclarator(state, attr, declSpecType, CFT); |
711 | 6.88k | break; |
712 | | |
713 | 0 | MS_TYPE_ATTRS_CASELIST: |
714 | | // Microsoft type attributes cannot go after the declarator-id. |
715 | 0 | continue; |
716 | | |
717 | 0 | NULLABILITY_TYPE_ATTRS_CASELIST: |
718 | | // Nullability specifiers cannot go after the declarator-id. |
719 | | |
720 | | // Objective-C __kindof does not get distributed. |
721 | 0 | case ParsedAttr::AT_ObjCKindOf: |
722 | 0 | continue; |
723 | | |
724 | 4.67M | default: |
725 | 4.67M | break; |
726 | 4.68M | } |
727 | 4.68M | } |
728 | 155M | } |
729 | | |
730 | | /// Add a synthetic '()' to a block-literal declarator if it is |
731 | | /// required, given the return type. |
732 | | static void maybeSynthesizeBlockSignature(TypeProcessingState &state, |
733 | 3.36k | QualType declSpecType) { |
734 | 3.36k | Declarator &declarator = state.getDeclarator(); |
735 | | |
736 | | // First, check whether the declarator would produce a function, |
737 | | // i.e. whether the innermost semantic chunk is a function. |
738 | 3.36k | if (declarator.isFunctionDeclarator()) { |
739 | | // If so, make that declarator a prototyped declarator. |
740 | 3.34k | declarator.getFunctionTypeInfo().hasPrototype = true; |
741 | 3.34k | return; |
742 | 3.34k | } |
743 | | |
744 | | // If there are any type objects, the type as written won't name a |
745 | | // function, regardless of the decl spec type. This is because a |
746 | | // block signature declarator is always an abstract-declarator, and |
747 | | // abstract-declarators can't just be parentheses chunks. Therefore |
748 | | // we need to build a function chunk unless there are no type |
749 | | // objects and the decl spec type is a function. |
750 | 24 | if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()21 ) |
751 | 4 | return; |
752 | | |
753 | | // Note that there *are* cases with invalid declarators where |
754 | | // declarators consist solely of parentheses. In general, these |
755 | | // occur only in failed efforts to make function declarators, so |
756 | | // faking up the function chunk is still the right thing to do. |
757 | | |
758 | | // Otherwise, we need to fake up a function declarator. |
759 | 20 | SourceLocation loc = declarator.getBeginLoc(); |
760 | | |
761 | | // ...and *prepend* it to the declarator. |
762 | 20 | SourceLocation NoLoc; |
763 | 20 | declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( |
764 | 20 | /*HasProto=*/true, |
765 | 20 | /*IsAmbiguous=*/false, |
766 | 20 | /*LParenLoc=*/NoLoc, |
767 | 20 | /*ArgInfo=*/nullptr, |
768 | 20 | /*NumParams=*/0, |
769 | 20 | /*EllipsisLoc=*/NoLoc, |
770 | 20 | /*RParenLoc=*/NoLoc, |
771 | 20 | /*RefQualifierIsLvalueRef=*/true, |
772 | 20 | /*RefQualifierLoc=*/NoLoc, |
773 | 20 | /*MutableLoc=*/NoLoc, EST_None, |
774 | 20 | /*ESpecRange=*/SourceRange(), |
775 | 20 | /*Exceptions=*/nullptr, |
776 | 20 | /*ExceptionRanges=*/nullptr, |
777 | 20 | /*NumExceptions=*/0, |
778 | 20 | /*NoexceptExpr=*/nullptr, |
779 | 20 | /*ExceptionSpecTokens=*/nullptr, |
780 | 20 | /*DeclsInPrototype=*/std::nullopt, loc, loc, declarator)); |
781 | | |
782 | | // For consistency, make sure the state still has us as processing |
783 | | // the decl spec. |
784 | 20 | assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); |
785 | 20 | state.setCurrentChunkIndex(declarator.getNumTypeObjects()); |
786 | 20 | } |
787 | | |
788 | | static void diagnoseAndRemoveTypeQualifiers(Sema &S, const DeclSpec &DS, |
789 | | unsigned &TypeQuals, |
790 | | QualType TypeSoFar, |
791 | | unsigned RemoveTQs, |
792 | 3.17k | unsigned DiagID) { |
793 | | // If this occurs outside a template instantiation, warn the user about |
794 | | // it; they probably didn't mean to specify a redundant qualifier. |
795 | 3.17k | typedef std::pair<DeclSpec::TQ, SourceLocation> QualLoc; |
796 | 3.17k | for (QualLoc Qual : {QualLoc(DeclSpec::TQ_const, DS.getConstSpecLoc()), |
797 | 3.17k | QualLoc(DeclSpec::TQ_restrict, DS.getRestrictSpecLoc()), |
798 | 3.17k | QualLoc(DeclSpec::TQ_volatile, DS.getVolatileSpecLoc()), |
799 | 12.7k | QualLoc(DeclSpec::TQ_atomic, DS.getAtomicSpecLoc())}) { |
800 | 12.7k | if (!(RemoveTQs & Qual.first)) |
801 | 122 | continue; |
802 | | |
803 | 12.5k | if (!S.inTemplateInstantiation()) { |
804 | 12.5k | if (TypeQuals & Qual.first) |
805 | 100 | S.Diag(Qual.second, DiagID) |
806 | 100 | << DeclSpec::getSpecifierName(Qual.first) << TypeSoFar |
807 | 100 | << FixItHint::CreateRemoval(Qual.second); |
808 | 12.5k | } |
809 | | |
810 | 12.5k | TypeQuals &= ~Qual.first; |
811 | 12.5k | } |
812 | 3.17k | } |
813 | | |
814 | | /// Return true if this is omitted block return type. Also check type |
815 | | /// attributes and type qualifiers when returning true. |
816 | | static bool checkOmittedBlockReturnType(Sema &S, Declarator &declarator, |
817 | 3.45k | QualType Result) { |
818 | 3.45k | if (!isOmittedBlockReturnType(declarator)) |
819 | 383 | return false; |
820 | | |
821 | | // Warn if we see type attributes for omitted return type on a block literal. |
822 | 3.07k | SmallVector<ParsedAttr *, 2> ToBeRemoved; |
823 | 3.07k | for (ParsedAttr &AL : declarator.getMutableDeclSpec().getAttributes()) { |
824 | 22 | if (AL.isInvalid() || !AL.isTypeAttr()) |
825 | 17 | continue; |
826 | 5 | S.Diag(AL.getLoc(), |
827 | 5 | diag::warn_block_literal_attributes_on_omitted_return_type) |
828 | 5 | << AL; |
829 | 5 | ToBeRemoved.push_back(&AL); |
830 | 5 | } |
831 | | // Remove bad attributes from the list. |
832 | 3.07k | for (ParsedAttr *AL : ToBeRemoved) |
833 | 5 | declarator.getMutableDeclSpec().getAttributes().remove(AL); |
834 | | |
835 | | // Warn if we see type qualifiers for omitted return type on a block literal. |
836 | 3.07k | const DeclSpec &DS = declarator.getDeclSpec(); |
837 | 3.07k | unsigned TypeQuals = DS.getTypeQualifiers(); |
838 | 3.07k | diagnoseAndRemoveTypeQualifiers(S, DS, TypeQuals, Result, (unsigned)-1, |
839 | 3.07k | diag::warn_block_literal_qualifiers_on_omitted_return_type); |
840 | 3.07k | declarator.getMutableDeclSpec().ClearTypeQualifiers(); |
841 | | |
842 | 3.07k | return true; |
843 | 3.45k | } |
844 | | |
845 | | /// Apply Objective-C type arguments to the given type. |
846 | | static QualType applyObjCTypeArgs(Sema &S, SourceLocation loc, QualType type, |
847 | | ArrayRef<TypeSourceInfo *> typeArgs, |
848 | | SourceRange typeArgsRange, bool failOnError, |
849 | 130k | bool rebuilding) { |
850 | | // We can only apply type arguments to an Objective-C class type. |
851 | 130k | const auto *objcObjectType = type->getAs<ObjCObjectType>(); |
852 | 130k | if (!objcObjectType || !objcObjectType->getInterface()130k ) { |
853 | 1 | S.Diag(loc, diag::err_objc_type_args_non_class) |
854 | 1 | << type |
855 | 1 | << typeArgsRange; |
856 | | |
857 | 1 | if (failOnError) |
858 | 0 | return QualType(); |
859 | 1 | return type; |
860 | 1 | } |
861 | | |
862 | | // The class type must be parameterized. |
863 | 130k | ObjCInterfaceDecl *objcClass = objcObjectType->getInterface(); |
864 | 130k | ObjCTypeParamList *typeParams = objcClass->getTypeParamList(); |
865 | 130k | if (!typeParams) { |
866 | 1 | S.Diag(loc, diag::err_objc_type_args_non_parameterized_class) |
867 | 1 | << objcClass->getDeclName() |
868 | 1 | << FixItHint::CreateRemoval(typeArgsRange); |
869 | | |
870 | 1 | if (failOnError) |
871 | 0 | return QualType(); |
872 | | |
873 | 1 | return type; |
874 | 1 | } |
875 | | |
876 | | // The type must not already be specialized. |
877 | 130k | if (objcObjectType->isSpecialized()) { |
878 | 3 | S.Diag(loc, diag::err_objc_type_args_specialized_class) |
879 | 3 | << type |
880 | 3 | << FixItHint::CreateRemoval(typeArgsRange); |
881 | | |
882 | 3 | if (failOnError) |
883 | 0 | return QualType(); |
884 | | |
885 | 3 | return type; |
886 | 3 | } |
887 | | |
888 | | // Check the type arguments. |
889 | 130k | SmallVector<QualType, 4> finalTypeArgs; |
890 | 130k | unsigned numTypeParams = typeParams->size(); |
891 | 130k | bool anyPackExpansions = false; |
892 | 291k | for (unsigned i = 0, n = typeArgs.size(); i != n; ++i161k ) { |
893 | 161k | TypeSourceInfo *typeArgInfo = typeArgs[i]; |
894 | 161k | QualType typeArg = typeArgInfo->getType(); |
895 | | |
896 | | // Type arguments cannot have explicit qualifiers or nullability. |
897 | | // We ignore indirect sources of these, e.g. behind typedefs or |
898 | | // template arguments. |
899 | 161k | if (TypeLoc qual = typeArgInfo->getTypeLoc().findExplicitQualifierLoc()) { |
900 | 23 | bool diagnosed = false; |
901 | 23 | SourceRange rangeToRemove; |
902 | 23 | if (auto attr = qual.getAs<AttributedTypeLoc>()) { |
903 | 14 | rangeToRemove = attr.getLocalSourceRange(); |
904 | 14 | if (attr.getTypePtr()->getImmediateNullability()) { |
905 | 1 | typeArg = attr.getTypePtr()->getModifiedType(); |
906 | 1 | S.Diag(attr.getBeginLoc(), |
907 | 1 | diag::err_objc_type_arg_explicit_nullability) |
908 | 1 | << typeArg << FixItHint::CreateRemoval(rangeToRemove); |
909 | 1 | diagnosed = true; |
910 | 1 | } |
911 | 14 | } |
912 | | |
913 | | // When rebuilding, qualifiers might have gotten here through a |
914 | | // final substitution. |
915 | 23 | if (!rebuilding && !diagnosed17 ) { |
916 | 16 | S.Diag(qual.getBeginLoc(), diag::err_objc_type_arg_qualified) |
917 | 16 | << typeArg << typeArg.getQualifiers().getAsString() |
918 | 16 | << FixItHint::CreateRemoval(rangeToRemove); |
919 | 16 | } |
920 | 23 | } |
921 | | |
922 | | // Remove qualifiers even if they're non-local. |
923 | 161k | typeArg = typeArg.getUnqualifiedType(); |
924 | | |
925 | 161k | finalTypeArgs.push_back(typeArg); |
926 | | |
927 | 161k | if (typeArg->getAs<PackExpansionType>()) |
928 | 1 | anyPackExpansions = true; |
929 | | |
930 | | // Find the corresponding type parameter, if there is one. |
931 | 161k | ObjCTypeParamDecl *typeParam = nullptr; |
932 | 161k | if (!anyPackExpansions) { |
933 | 161k | if (i < numTypeParams) { |
934 | 161k | typeParam = typeParams->begin()[i]; |
935 | 161k | } else { |
936 | | // Too many arguments. |
937 | 2 | S.Diag(loc, diag::err_objc_type_args_wrong_arity) |
938 | 2 | << false |
939 | 2 | << objcClass->getDeclName() |
940 | 2 | << (unsigned)typeArgs.size() |
941 | 2 | << numTypeParams; |
942 | 2 | S.Diag(objcClass->getLocation(), diag::note_previous_decl) |
943 | 2 | << objcClass; |
944 | | |
945 | 2 | if (failOnError) |
946 | 1 | return QualType(); |
947 | | |
948 | 1 | return type; |
949 | 2 | } |
950 | 161k | } |
951 | | |
952 | | // Objective-C object pointer types must be substitutable for the bounds. |
953 | 161k | if (const auto *typeArgObjC = typeArg->getAs<ObjCObjectPointerType>()) { |
954 | | // If we don't have a type parameter to match against, assume |
955 | | // everything is fine. There was a prior pack expansion that |
956 | | // means we won't be able to match anything. |
957 | 161k | if (!typeParam) { |
958 | 0 | assert(anyPackExpansions && "Too many arguments?"); |
959 | 0 | continue; |
960 | 0 | } |
961 | | |
962 | | // Retrieve the bound. |
963 | 161k | QualType bound = typeParam->getUnderlyingType(); |
964 | 161k | const auto *boundObjC = bound->castAs<ObjCObjectPointerType>(); |
965 | | |
966 | | // Determine whether the type argument is substitutable for the bound. |
967 | 161k | if (typeArgObjC->isObjCIdType()) { |
968 | | // When the type argument is 'id', the only acceptable type |
969 | | // parameter bound is 'id'. |
970 | 63.8k | if (boundObjC->isObjCIdType()) |
971 | 63.8k | continue; |
972 | 97.3k | } else if (S.Context.canAssignObjCInterfaces(boundObjC, typeArgObjC)) { |
973 | | // Otherwise, we follow the assignability rules. |
974 | 97.3k | continue; |
975 | 97.3k | } |
976 | | |
977 | | // Diagnose the mismatch. |
978 | 6 | S.Diag(typeArgInfo->getTypeLoc().getBeginLoc(), |
979 | 6 | diag::err_objc_type_arg_does_not_match_bound) |
980 | 6 | << typeArg << bound << typeParam->getDeclName(); |
981 | 6 | S.Diag(typeParam->getLocation(), diag::note_objc_type_param_here) |
982 | 6 | << typeParam->getDeclName(); |
983 | | |
984 | 6 | if (failOnError) |
985 | 2 | return QualType(); |
986 | | |
987 | 4 | return type; |
988 | 6 | } |
989 | | |
990 | | // Block pointer types are permitted for unqualified 'id' bounds. |
991 | 237 | if (typeArg->isBlockPointerType()) { |
992 | | // If we don't have a type parameter to match against, assume |
993 | | // everything is fine. There was a prior pack expansion that |
994 | | // means we won't be able to match anything. |
995 | 229 | if (!typeParam) { |
996 | 0 | assert(anyPackExpansions && "Too many arguments?"); |
997 | 0 | continue; |
998 | 0 | } |
999 | | |
1000 | | // Retrieve the bound. |
1001 | 229 | QualType bound = typeParam->getUnderlyingType(); |
1002 | 229 | if (bound->isBlockCompatibleObjCPointerType(S.Context)) |
1003 | 229 | continue; |
1004 | | |
1005 | | // Diagnose the mismatch. |
1006 | 0 | S.Diag(typeArgInfo->getTypeLoc().getBeginLoc(), |
1007 | 0 | diag::err_objc_type_arg_does_not_match_bound) |
1008 | 0 | << typeArg << bound << typeParam->getDeclName(); |
1009 | 0 | S.Diag(typeParam->getLocation(), diag::note_objc_type_param_here) |
1010 | 0 | << typeParam->getDeclName(); |
1011 | |
|
1012 | 0 | if (failOnError) |
1013 | 0 | return QualType(); |
1014 | | |
1015 | 0 | return type; |
1016 | 0 | } |
1017 | | |
1018 | | // Dependent types will be checked at instantiation time. |
1019 | 8 | if (typeArg->isDependentType()) { |
1020 | 8 | continue; |
1021 | 8 | } |
1022 | | |
1023 | | // Diagnose non-id-compatible type arguments. |
1024 | 0 | S.Diag(typeArgInfo->getTypeLoc().getBeginLoc(), |
1025 | 0 | diag::err_objc_type_arg_not_id_compatible) |
1026 | 0 | << typeArg << typeArgInfo->getTypeLoc().getSourceRange(); |
1027 | |
|
1028 | 0 | if (failOnError) |
1029 | 0 | return QualType(); |
1030 | | |
1031 | 0 | return type; |
1032 | 0 | } |
1033 | | |
1034 | | // Make sure we didn't have the wrong number of arguments. |
1035 | 130k | if (!anyPackExpansions && finalTypeArgs.size() != numTypeParams130k ) { |
1036 | 3 | S.Diag(loc, diag::err_objc_type_args_wrong_arity) |
1037 | 3 | << (typeArgs.size() < typeParams->size()) |
1038 | 3 | << objcClass->getDeclName() |
1039 | 3 | << (unsigned)finalTypeArgs.size() |
1040 | 3 | << (unsigned)numTypeParams; |
1041 | 3 | S.Diag(objcClass->getLocation(), diag::note_previous_decl) |
1042 | 3 | << objcClass; |
1043 | | |
1044 | 3 | if (failOnError) |
1045 | 1 | return QualType(); |
1046 | | |
1047 | 2 | return type; |
1048 | 3 | } |
1049 | | |
1050 | | // Success. Form the specialized type. |
1051 | 130k | return S.Context.getObjCObjectType(type, finalTypeArgs, { }, false); |
1052 | 130k | } |
1053 | | |
1054 | | QualType Sema::BuildObjCTypeParamType(const ObjCTypeParamDecl *Decl, |
1055 | | SourceLocation ProtocolLAngleLoc, |
1056 | | ArrayRef<ObjCProtocolDecl *> Protocols, |
1057 | | ArrayRef<SourceLocation> ProtocolLocs, |
1058 | | SourceLocation ProtocolRAngleLoc, |
1059 | 0 | bool FailOnError) { |
1060 | 0 | QualType Result = QualType(Decl->getTypeForDecl(), 0); |
1061 | 0 | if (!Protocols.empty()) { |
1062 | 0 | bool HasError; |
1063 | 0 | Result = Context.applyObjCProtocolQualifiers(Result, Protocols, |
1064 | 0 | HasError); |
1065 | 0 | if (HasError) { |
1066 | 0 | Diag(SourceLocation(), diag::err_invalid_protocol_qualifiers) |
1067 | 0 | << SourceRange(ProtocolLAngleLoc, ProtocolRAngleLoc); |
1068 | 0 | if (FailOnError) Result = QualType(); |
1069 | 0 | } |
1070 | 0 | if (FailOnError && Result.isNull()) |
1071 | 0 | return QualType(); |
1072 | 0 | } |
1073 | | |
1074 | 0 | return Result; |
1075 | 0 | } |
1076 | | |
1077 | | QualType Sema::BuildObjCObjectType( |
1078 | | QualType BaseType, SourceLocation Loc, SourceLocation TypeArgsLAngleLoc, |
1079 | | ArrayRef<TypeSourceInfo *> TypeArgs, SourceLocation TypeArgsRAngleLoc, |
1080 | | SourceLocation ProtocolLAngleLoc, ArrayRef<ObjCProtocolDecl *> Protocols, |
1081 | | ArrayRef<SourceLocation> ProtocolLocs, SourceLocation ProtocolRAngleLoc, |
1082 | 153k | bool FailOnError, bool Rebuilding) { |
1083 | 153k | QualType Result = BaseType; |
1084 | 153k | if (!TypeArgs.empty()) { |
1085 | 130k | Result = |
1086 | 130k | applyObjCTypeArgs(*this, Loc, Result, TypeArgs, |
1087 | 130k | SourceRange(TypeArgsLAngleLoc, TypeArgsRAngleLoc), |
1088 | 130k | FailOnError, Rebuilding); |
1089 | 130k | if (FailOnError && Result.isNull()17 ) |
1090 | 4 | return QualType(); |
1091 | 130k | } |
1092 | | |
1093 | 153k | if (!Protocols.empty()) { |
1094 | 23.0k | bool HasError; |
1095 | 23.0k | Result = Context.applyObjCProtocolQualifiers(Result, Protocols, |
1096 | 23.0k | HasError); |
1097 | 23.0k | if (HasError) { |
1098 | 1 | Diag(Loc, diag::err_invalid_protocol_qualifiers) |
1099 | 1 | << SourceRange(ProtocolLAngleLoc, ProtocolRAngleLoc); |
1100 | 1 | if (FailOnError) Result = QualType()0 ; |
1101 | 1 | } |
1102 | 23.0k | if (FailOnError && Result.isNull()0 ) |
1103 | 0 | return QualType(); |
1104 | 23.0k | } |
1105 | | |
1106 | 153k | return Result; |
1107 | 153k | } |
1108 | | |
1109 | | TypeResult Sema::actOnObjCProtocolQualifierType( |
1110 | | SourceLocation lAngleLoc, |
1111 | | ArrayRef<Decl *> protocols, |
1112 | | ArrayRef<SourceLocation> protocolLocs, |
1113 | 7 | SourceLocation rAngleLoc) { |
1114 | | // Form id<protocol-list>. |
1115 | 7 | QualType Result = Context.getObjCObjectType( |
1116 | 7 | Context.ObjCBuiltinIdTy, {}, |
1117 | 7 | llvm::ArrayRef((ObjCProtocolDecl *const *)protocols.data(), |
1118 | 7 | protocols.size()), |
1119 | 7 | false); |
1120 | 7 | Result = Context.getObjCObjectPointerType(Result); |
1121 | | |
1122 | 7 | TypeSourceInfo *ResultTInfo = Context.CreateTypeSourceInfo(Result); |
1123 | 7 | TypeLoc ResultTL = ResultTInfo->getTypeLoc(); |
1124 | | |
1125 | 7 | auto ObjCObjectPointerTL = ResultTL.castAs<ObjCObjectPointerTypeLoc>(); |
1126 | 7 | ObjCObjectPointerTL.setStarLoc(SourceLocation()); // implicit |
1127 | | |
1128 | 7 | auto ObjCObjectTL = ObjCObjectPointerTL.getPointeeLoc() |
1129 | 7 | .castAs<ObjCObjectTypeLoc>(); |
1130 | 7 | ObjCObjectTL.setHasBaseTypeAsWritten(false); |
1131 | 7 | ObjCObjectTL.getBaseLoc().initialize(Context, SourceLocation()); |
1132 | | |
1133 | | // No type arguments. |
1134 | 7 | ObjCObjectTL.setTypeArgsLAngleLoc(SourceLocation()); |
1135 | 7 | ObjCObjectTL.setTypeArgsRAngleLoc(SourceLocation()); |
1136 | | |
1137 | | // Fill in protocol qualifiers. |
1138 | 7 | ObjCObjectTL.setProtocolLAngleLoc(lAngleLoc); |
1139 | 7 | ObjCObjectTL.setProtocolRAngleLoc(rAngleLoc); |
1140 | 14 | for (unsigned i = 0, n = protocols.size(); i != n; ++i7 ) |
1141 | 7 | ObjCObjectTL.setProtocolLoc(i, protocolLocs[i]); |
1142 | | |
1143 | | // We're done. Return the completed type to the parser. |
1144 | 7 | return CreateParsedType(Result, ResultTInfo); |
1145 | 7 | } |
1146 | | |
1147 | | TypeResult Sema::actOnObjCTypeArgsAndProtocolQualifiers( |
1148 | | Scope *S, |
1149 | | SourceLocation Loc, |
1150 | | ParsedType BaseType, |
1151 | | SourceLocation TypeArgsLAngleLoc, |
1152 | | ArrayRef<ParsedType> TypeArgs, |
1153 | | SourceLocation TypeArgsRAngleLoc, |
1154 | | SourceLocation ProtocolLAngleLoc, |
1155 | | ArrayRef<Decl *> Protocols, |
1156 | | ArrayRef<SourceLocation> ProtocolLocs, |
1157 | 153k | SourceLocation ProtocolRAngleLoc) { |
1158 | 153k | TypeSourceInfo *BaseTypeInfo = nullptr; |
1159 | 153k | QualType T = GetTypeFromParser(BaseType, &BaseTypeInfo); |
1160 | 153k | if (T.isNull()) |
1161 | 0 | return true; |
1162 | | |
1163 | | // Handle missing type-source info. |
1164 | 153k | if (!BaseTypeInfo) |
1165 | 153k | BaseTypeInfo = Context.getTrivialTypeSourceInfo(T, Loc); |
1166 | | |
1167 | | // Extract type arguments. |
1168 | 153k | SmallVector<TypeSourceInfo *, 4> ActualTypeArgInfos; |
1169 | 315k | for (unsigned i = 0, n = TypeArgs.size(); i != n; ++i161k ) { |
1170 | 161k | TypeSourceInfo *TypeArgInfo = nullptr; |
1171 | 161k | QualType TypeArg = GetTypeFromParser(TypeArgs[i], &TypeArgInfo); |
1172 | 161k | if (TypeArg.isNull()) { |
1173 | 0 | ActualTypeArgInfos.clear(); |
1174 | 0 | break; |
1175 | 0 | } |
1176 | | |
1177 | 161k | assert(TypeArgInfo && "No type source info?"); |
1178 | 161k | ActualTypeArgInfos.push_back(TypeArgInfo); |
1179 | 161k | } |
1180 | | |
1181 | | // Build the object type. |
1182 | 153k | QualType Result = BuildObjCObjectType( |
1183 | 153k | T, BaseTypeInfo->getTypeLoc().getSourceRange().getBegin(), |
1184 | 153k | TypeArgsLAngleLoc, ActualTypeArgInfos, TypeArgsRAngleLoc, |
1185 | 153k | ProtocolLAngleLoc, |
1186 | 153k | llvm::ArrayRef((ObjCProtocolDecl *const *)Protocols.data(), |
1187 | 153k | Protocols.size()), |
1188 | 153k | ProtocolLocs, ProtocolRAngleLoc, |
1189 | 153k | /*FailOnError=*/false, |
1190 | 153k | /*Rebuilding=*/false); |
1191 | | |
1192 | 153k | if (Result == T) |
1193 | 57 | return BaseType; |
1194 | | |
1195 | | // Create source information for this type. |
1196 | 153k | TypeSourceInfo *ResultTInfo = Context.CreateTypeSourceInfo(Result); |
1197 | 153k | TypeLoc ResultTL = ResultTInfo->getTypeLoc(); |
1198 | | |
1199 | | // For id<Proto1, Proto2> or Class<Proto1, Proto2>, we'll have an |
1200 | | // object pointer type. Fill in source information for it. |
1201 | 153k | if (auto ObjCObjectPointerTL = ResultTL.getAs<ObjCObjectPointerTypeLoc>()) { |
1202 | | // The '*' is implicit. |
1203 | 15.6k | ObjCObjectPointerTL.setStarLoc(SourceLocation()); |
1204 | 15.6k | ResultTL = ObjCObjectPointerTL.getPointeeLoc(); |
1205 | 15.6k | } |
1206 | | |
1207 | 153k | if (auto OTPTL = ResultTL.getAs<ObjCTypeParamTypeLoc>()) { |
1208 | | // Protocol qualifier information. |
1209 | 1.76k | if (OTPTL.getNumProtocols() > 0) { |
1210 | 1.76k | assert(OTPTL.getNumProtocols() == Protocols.size()); |
1211 | 1.76k | OTPTL.setProtocolLAngleLoc(ProtocolLAngleLoc); |
1212 | 1.76k | OTPTL.setProtocolRAngleLoc(ProtocolRAngleLoc); |
1213 | 3.53k | for (unsigned i = 0, n = Protocols.size(); i != n; ++i1.76k ) |
1214 | 1.76k | OTPTL.setProtocolLoc(i, ProtocolLocs[i]); |
1215 | 1.76k | } |
1216 | | |
1217 | | // We're done. Return the completed type to the parser. |
1218 | 1.76k | return CreateParsedType(Result, ResultTInfo); |
1219 | 1.76k | } |
1220 | | |
1221 | 151k | auto ObjCObjectTL = ResultTL.castAs<ObjCObjectTypeLoc>(); |
1222 | | |
1223 | | // Type argument information. |
1224 | 151k | if (ObjCObjectTL.getNumTypeArgs() > 0) { |
1225 | 130k | assert(ObjCObjectTL.getNumTypeArgs() == ActualTypeArgInfos.size()); |
1226 | 130k | ObjCObjectTL.setTypeArgsLAngleLoc(TypeArgsLAngleLoc); |
1227 | 130k | ObjCObjectTL.setTypeArgsRAngleLoc(TypeArgsRAngleLoc); |
1228 | 291k | for (unsigned i = 0, n = ActualTypeArgInfos.size(); i != n; ++i161k ) |
1229 | 161k | ObjCObjectTL.setTypeArgTInfo(i, ActualTypeArgInfos[i]); |
1230 | 130k | } else { |
1231 | 21.2k | ObjCObjectTL.setTypeArgsLAngleLoc(SourceLocation()); |
1232 | 21.2k | ObjCObjectTL.setTypeArgsRAngleLoc(SourceLocation()); |
1233 | 21.2k | } |
1234 | | |
1235 | | // Protocol qualifier information. |
1236 | 151k | if (ObjCObjectTL.getNumProtocols() > 0) { |
1237 | 21.2k | assert(ObjCObjectTL.getNumProtocols() == Protocols.size()); |
1238 | 21.2k | ObjCObjectTL.setProtocolLAngleLoc(ProtocolLAngleLoc); |
1239 | 21.2k | ObjCObjectTL.setProtocolRAngleLoc(ProtocolRAngleLoc); |
1240 | 43.4k | for (unsigned i = 0, n = Protocols.size(); i != n; ++i22.1k ) |
1241 | 22.1k | ObjCObjectTL.setProtocolLoc(i, ProtocolLocs[i]); |
1242 | 130k | } else { |
1243 | 130k | ObjCObjectTL.setProtocolLAngleLoc(SourceLocation()); |
1244 | 130k | ObjCObjectTL.setProtocolRAngleLoc(SourceLocation()); |
1245 | 130k | } |
1246 | | |
1247 | | // Base type. |
1248 | 151k | ObjCObjectTL.setHasBaseTypeAsWritten(true); |
1249 | 151k | if (ObjCObjectTL.getType() == T) |
1250 | 0 | ObjCObjectTL.getBaseLoc().initializeFullCopy(BaseTypeInfo->getTypeLoc()); |
1251 | 151k | else |
1252 | 151k | ObjCObjectTL.getBaseLoc().initialize(Context, Loc); |
1253 | | |
1254 | | // We're done. Return the completed type to the parser. |
1255 | 151k | return CreateParsedType(Result, ResultTInfo); |
1256 | 151k | } |
1257 | | |
1258 | | static OpenCLAccessAttr::Spelling |
1259 | 8.62k | getImageAccess(const ParsedAttributesView &Attrs) { |
1260 | 8.62k | for (const ParsedAttr &AL : Attrs) |
1261 | 8.47k | if (AL.getKind() == ParsedAttr::AT_OpenCLAccess) |
1262 | 8.47k | return static_cast<OpenCLAccessAttr::Spelling>(AL.getSemanticSpelling()); |
1263 | 147 | return OpenCLAccessAttr::Keyword_read_only; |
1264 | 8.62k | } |
1265 | | |
1266 | | static UnaryTransformType::UTTKind |
1267 | 11.9k | TSTToUnaryTransformType(DeclSpec::TST SwitchTST) { |
1268 | 11.9k | switch (SwitchTST) { |
1269 | 0 | #define TRANSFORM_TYPE_TRAIT_DEF(Enum, Trait) \ |
1270 | 11.9k | case TST_##Trait: \ |
1271 | 11.9k | return UnaryTransformType::Enum; |
1272 | 0 | #include "clang/Basic/TransformTypeTraits.def" |
1273 | 0 | default: |
1274 | 0 | llvm_unreachable("attempted to parse a non-unary transform builtin"); |
1275 | 11.9k | } |
1276 | 11.9k | } |
1277 | | |
1278 | | /// Convert the specified declspec to the appropriate type |
1279 | | /// object. |
1280 | | /// \param state Specifies the declarator containing the declaration specifier |
1281 | | /// to be converted, along with other associated processing state. |
1282 | | /// \returns The type described by the declaration specifiers. This function |
1283 | | /// never returns null. |
1284 | 155M | static QualType ConvertDeclSpecToType(TypeProcessingState &state) { |
1285 | | // FIXME: Should move the logic from DeclSpec::Finish to here for validity |
1286 | | // checking. |
1287 | | |
1288 | 155M | Sema &S = state.getSema(); |
1289 | 155M | Declarator &declarator = state.getDeclarator(); |
1290 | 155M | DeclSpec &DS = declarator.getMutableDeclSpec(); |
1291 | 155M | SourceLocation DeclLoc = declarator.getIdentifierLoc(); |
1292 | 155M | if (DeclLoc.isInvalid()) |
1293 | 997k | DeclLoc = DS.getBeginLoc(); |
1294 | | |
1295 | 155M | ASTContext &Context = S.Context; |
1296 | | |
1297 | 155M | QualType Result; |
1298 | 155M | switch (DS.getTypeSpecType()) { |
1299 | 4.66M | case DeclSpec::TST_void: |
1300 | 4.66M | Result = Context.VoidTy; |
1301 | 4.66M | break; |
1302 | 1.18M | case DeclSpec::TST_char: |
1303 | 1.18M | if (DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified) |
1304 | 992k | Result = Context.CharTy; |
1305 | 193k | else if (DS.getTypeSpecSign() == TypeSpecifierSign::Signed) |
1306 | 52.7k | Result = Context.SignedCharTy; |
1307 | 140k | else { |
1308 | 140k | assert(DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned && |
1309 | 140k | "Unknown TSS value"); |
1310 | 140k | Result = Context.UnsignedCharTy; |
1311 | 140k | } |
1312 | 1.18M | break; |
1313 | 1.18M | case DeclSpec::TST_wchar: |
1314 | 191k | if (DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified) |
1315 | 191k | Result = Context.WCharTy; |
1316 | 6 | else if (DS.getTypeSpecSign() == TypeSpecifierSign::Signed) { |
1317 | 3 | S.Diag(DS.getTypeSpecSignLoc(), diag::ext_wchar_t_sign_spec) |
1318 | 3 | << DS.getSpecifierName(DS.getTypeSpecType(), |
1319 | 3 | Context.getPrintingPolicy()); |
1320 | 3 | Result = Context.getSignedWCharType(); |
1321 | 3 | } else { |
1322 | 3 | assert(DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned && |
1323 | 3 | "Unknown TSS value"); |
1324 | 3 | S.Diag(DS.getTypeSpecSignLoc(), diag::ext_wchar_t_sign_spec) |
1325 | 3 | << DS.getSpecifierName(DS.getTypeSpecType(), |
1326 | 3 | Context.getPrintingPolicy()); |
1327 | 3 | Result = Context.getUnsignedWCharType(); |
1328 | 3 | } |
1329 | 191k | break; |
1330 | 191k | case DeclSpec::TST_char8: |
1331 | 362 | assert(DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified && |
1332 | 362 | "Unknown TSS value"); |
1333 | 362 | Result = Context.Char8Ty; |
1334 | 362 | break; |
1335 | 16.1k | case DeclSpec::TST_char16: |
1336 | 16.1k | assert(DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified && |
1337 | 16.1k | "Unknown TSS value"); |
1338 | 16.1k | Result = Context.Char16Ty; |
1339 | 16.1k | break; |
1340 | 16.3k | case DeclSpec::TST_char32: |
1341 | 16.3k | assert(DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified && |
1342 | 16.3k | "Unknown TSS value"); |
1343 | 16.3k | Result = Context.Char32Ty; |
1344 | 16.3k | break; |
1345 | 11.2k | case DeclSpec::TST_unspecified: |
1346 | | // If this is a missing declspec in a block literal return context, then it |
1347 | | // is inferred from the return statements inside the block. |
1348 | | // The declspec is always missing in a lambda expr context; it is either |
1349 | | // specified with a trailing return type or inferred. |
1350 | 11.2k | if (S.getLangOpts().CPlusPlus14 && |
1351 | 11.2k | declarator.getContext() == DeclaratorContext::LambdaExpr6.53k ) { |
1352 | | // In C++1y, a lambda's implicit return type is 'auto'. |
1353 | 5.49k | Result = Context.getAutoDeductType(); |
1354 | 5.49k | break; |
1355 | 5.73k | } else if (declarator.getContext() == DeclaratorContext::LambdaExpr || |
1356 | 5.73k | checkOmittedBlockReturnType(S, declarator, |
1357 | 5.34k | Context.DependentTy)) { |
1358 | 5.34k | Result = Context.DependentTy; |
1359 | 5.34k | break; |
1360 | 5.34k | } |
1361 | | |
1362 | | // Unspecified typespec defaults to int in C90. However, the C90 grammar |
1363 | | // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, |
1364 | | // type-qualifier, or storage-class-specifier. If not, emit an extwarn. |
1365 | | // Note that the one exception to this is function definitions, which are |
1366 | | // allowed to be completely missing a declspec. This is handled in the |
1367 | | // parser already though by it pretending to have seen an 'int' in this |
1368 | | // case. |
1369 | 383 | if (S.getLangOpts().isImplicitIntRequired()) { |
1370 | 14 | S.Diag(DeclLoc, diag::warn_missing_type_specifier) |
1371 | 14 | << DS.getSourceRange() |
1372 | 14 | << FixItHint::CreateInsertion(DS.getBeginLoc(), "int"); |
1373 | 369 | } else if (!DS.hasTypeSpecifier()) { |
1374 | | // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: |
1375 | | // "At least one type specifier shall be given in the declaration |
1376 | | // specifiers in each declaration, and in the specifier-qualifier list in |
1377 | | // each struct declaration and type name." |
1378 | 369 | if (!S.getLangOpts().isImplicitIntAllowed() && !DS.isTypeSpecPipe()241 ) { |
1379 | 238 | S.Diag(DeclLoc, diag::err_missing_type_specifier) |
1380 | 238 | << DS.getSourceRange(); |
1381 | | |
1382 | | // When this occurs, often something is very broken with the value |
1383 | | // being declared, poison it as invalid so we don't get chains of |
1384 | | // errors. |
1385 | 238 | declarator.setInvalidType(true); |
1386 | 238 | } else if (131 S.getLangOpts().getOpenCLCompatibleVersion() >= 200131 && |
1387 | 131 | DS.isTypeSpecPipe()7 ) { |
1388 | 6 | S.Diag(DeclLoc, diag::err_missing_actual_pipe_type) |
1389 | 6 | << DS.getSourceRange(); |
1390 | 6 | declarator.setInvalidType(true); |
1391 | 125 | } else { |
1392 | 125 | assert(S.getLangOpts().isImplicitIntAllowed() && |
1393 | 125 | "implicit int is disabled?"); |
1394 | 125 | S.Diag(DeclLoc, diag::ext_missing_type_specifier) |
1395 | 125 | << DS.getSourceRange() |
1396 | 125 | << FixItHint::CreateInsertion(DS.getBeginLoc(), "int"); |
1397 | 125 | } |
1398 | 369 | } |
1399 | | |
1400 | 383 | [[fallthrough]]; |
1401 | 3.51M | case DeclSpec::TST_int: { |
1402 | 3.51M | if (DS.getTypeSpecSign() != TypeSpecifierSign::Unsigned) { |
1403 | 2.84M | switch (DS.getTypeSpecWidth()) { |
1404 | 2.37M | case TypeSpecifierWidth::Unspecified: |
1405 | 2.37M | Result = Context.IntTy; |
1406 | 2.37M | break; |
1407 | 157k | case TypeSpecifierWidth::Short: |
1408 | 157k | Result = Context.ShortTy; |
1409 | 157k | break; |
1410 | 194k | case TypeSpecifierWidth::Long: |
1411 | 194k | Result = Context.LongTy; |
1412 | 194k | break; |
1413 | 118k | case TypeSpecifierWidth::LongLong: |
1414 | 118k | Result = Context.LongLongTy; |
1415 | | |
1416 | | // 'long long' is a C99 or C++11 feature. |
1417 | 118k | if (!S.getLangOpts().C99) { |
1418 | 64.0k | if (S.getLangOpts().CPlusPlus) |
1419 | 64.0k | S.Diag(DS.getTypeSpecWidthLoc(), |
1420 | 64.0k | S.getLangOpts().CPlusPlus11 ? |
1421 | 62.9k | diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong1.12k ); |
1422 | 41 | else |
1423 | 41 | S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); |
1424 | 64.0k | } |
1425 | 118k | break; |
1426 | 2.84M | } |
1427 | 2.84M | } else { |
1428 | 664k | switch (DS.getTypeSpecWidth()) { |
1429 | 327k | case TypeSpecifierWidth::Unspecified: |
1430 | 327k | Result = Context.UnsignedIntTy; |
1431 | 327k | break; |
1432 | 117k | case TypeSpecifierWidth::Short: |
1433 | 117k | Result = Context.UnsignedShortTy; |
1434 | 117k | break; |
1435 | 114k | case TypeSpecifierWidth::Long: |
1436 | 114k | Result = Context.UnsignedLongTy; |
1437 | 114k | break; |
1438 | 104k | case TypeSpecifierWidth::LongLong: |
1439 | 104k | Result = Context.UnsignedLongLongTy; |
1440 | | |
1441 | | // 'long long' is a C99 or C++11 feature. |
1442 | 104k | if (!S.getLangOpts().C99) { |
1443 | 61.2k | if (S.getLangOpts().CPlusPlus) |
1444 | 61.2k | S.Diag(DS.getTypeSpecWidthLoc(), |
1445 | 61.2k | S.getLangOpts().CPlusPlus11 ? |
1446 | 60.2k | diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong941 ); |
1447 | 14 | else |
1448 | 14 | S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); |
1449 | 61.2k | } |
1450 | 104k | break; |
1451 | 664k | } |
1452 | 664k | } |
1453 | 3.51M | break; |
1454 | 3.51M | } |
1455 | 3.51M | case DeclSpec::TST_bitint: { |
1456 | 1.36k | if (!S.Context.getTargetInfo().hasBitIntType()) |
1457 | 2 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) << "_BitInt"; |
1458 | 1.36k | Result = |
1459 | 1.36k | S.BuildBitIntType(DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned, |
1460 | 1.36k | DS.getRepAsExpr(), DS.getBeginLoc()); |
1461 | 1.36k | if (Result.isNull()) { |
1462 | 11 | Result = Context.IntTy; |
1463 | 11 | declarator.setInvalidType(true); |
1464 | 11 | } |
1465 | 1.36k | break; |
1466 | 3.51M | } |
1467 | 1.03k | case DeclSpec::TST_accum: { |
1468 | 1.03k | switch (DS.getTypeSpecWidth()) { |
1469 | 520 | case TypeSpecifierWidth::Short: |
1470 | 520 | Result = Context.ShortAccumTy; |
1471 | 520 | break; |
1472 | 320 | case TypeSpecifierWidth::Unspecified: |
1473 | 320 | Result = Context.AccumTy; |
1474 | 320 | break; |
1475 | 191 | case TypeSpecifierWidth::Long: |
1476 | 191 | Result = Context.LongAccumTy; |
1477 | 191 | break; |
1478 | 0 | case TypeSpecifierWidth::LongLong: |
1479 | 0 | llvm_unreachable("Unable to specify long long as _Accum width"); |
1480 | 1.03k | } |
1481 | | |
1482 | 1.03k | if (DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned) |
1483 | 331 | Result = Context.getCorrespondingUnsignedType(Result); |
1484 | | |
1485 | 1.03k | if (DS.isTypeSpecSat()) |
1486 | 372 | Result = Context.getCorrespondingSaturatedType(Result); |
1487 | | |
1488 | 1.03k | break; |
1489 | 1.03k | } |
1490 | 551 | case DeclSpec::TST_fract: { |
1491 | 551 | switch (DS.getTypeSpecWidth()) { |
1492 | 168 | case TypeSpecifierWidth::Short: |
1493 | 168 | Result = Context.ShortFractTy; |
1494 | 168 | break; |
1495 | 218 | case TypeSpecifierWidth::Unspecified: |
1496 | 218 | Result = Context.FractTy; |
1497 | 218 | break; |
1498 | 165 | case TypeSpecifierWidth::Long: |
1499 | 165 | Result = Context.LongFractTy; |
1500 | 165 | break; |
1501 | 0 | case TypeSpecifierWidth::LongLong: |
1502 | 0 | llvm_unreachable("Unable to specify long long as _Fract width"); |
1503 | 551 | } |
1504 | | |
1505 | 551 | if (DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned) |
1506 | 210 | Result = Context.getCorrespondingUnsignedType(Result); |
1507 | | |
1508 | 551 | if (DS.isTypeSpecSat()) |
1509 | 179 | Result = Context.getCorrespondingSaturatedType(Result); |
1510 | | |
1511 | 551 | break; |
1512 | 551 | } |
1513 | 1.08k | case DeclSpec::TST_int128: |
1514 | 1.08k | if (!S.Context.getTargetInfo().hasInt128Type() && |
1515 | 1.08k | !(31 S.getLangOpts().SYCLIsDevice31 || S.getLangOpts().CUDAIsDevice13 || |
1516 | 31 | (9 S.getLangOpts().OpenMP9 && S.getLangOpts().OpenMPIsTargetDevice0 ))) |
1517 | 9 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) |
1518 | 9 | << "__int128"; |
1519 | 1.08k | if (DS.getTypeSpecSign() == TypeSpecifierSign::Unsigned) |
1520 | 685 | Result = Context.UnsignedInt128Ty; |
1521 | 401 | else |
1522 | 401 | Result = Context.Int128Ty; |
1523 | 1.08k | break; |
1524 | 29.3k | case DeclSpec::TST_float16: |
1525 | | // CUDA host and device may have different _Float16 support, therefore |
1526 | | // do not diagnose _Float16 usage to avoid false alarm. |
1527 | | // ToDo: more precise diagnostics for CUDA. |
1528 | 29.3k | if (!S.Context.getTargetInfo().hasFloat16Type() && !S.getLangOpts().CUDA2 && |
1529 | 29.3k | !(2 S.getLangOpts().OpenMP2 && S.getLangOpts().OpenMPIsTargetDevice0 )) |
1530 | 2 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) |
1531 | 2 | << "_Float16"; |
1532 | 29.3k | Result = Context.Float16Ty; |
1533 | 29.3k | break; |
1534 | 25.0k | case DeclSpec::TST_half: Result = Context.HalfTy; break; |
1535 | 6.60k | case DeclSpec::TST_BFloat16: |
1536 | 6.60k | if (!S.Context.getTargetInfo().hasBFloat16Type() && |
1537 | 6.60k | !(21 S.getLangOpts().OpenMP21 && S.getLangOpts().OpenMPIsTargetDevice0 ) && |
1538 | 6.60k | !S.getLangOpts().SYCLIsDevice21 ) |
1539 | 18 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) << "__bf16"; |
1540 | 6.60k | Result = Context.BFloat16Ty; |
1541 | 6.60k | break; |
1542 | 385k | case DeclSpec::TST_float: Result = Context.FloatTy; break; |
1543 | 630k | case DeclSpec::TST_double: |
1544 | 630k | if (DS.getTypeSpecWidth() == TypeSpecifierWidth::Long) |
1545 | 197k | Result = Context.LongDoubleTy; |
1546 | 433k | else |
1547 | 433k | Result = Context.DoubleTy; |
1548 | 630k | if (S.getLangOpts().OpenCL) { |
1549 | 15.3k | if (!S.getOpenCLOptions().isSupported("cl_khr_fp64", S.getLangOpts())) |
1550 | 38 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_opencl_requires_extension) |
1551 | 38 | << 0 << Result |
1552 | 38 | << (S.getLangOpts().getOpenCLCompatibleVersion() == 300 |
1553 | 38 | ? "cl_khr_fp64 and __opencl_c_fp64"16 |
1554 | 38 | : "cl_khr_fp64"22 ); |
1555 | 15.3k | else if (!S.getOpenCLOptions().isAvailableOption("cl_khr_fp64", S.getLangOpts())) |
1556 | 24 | S.Diag(DS.getTypeSpecTypeLoc(), diag::ext_opencl_double_without_pragma); |
1557 | 15.3k | } |
1558 | 630k | break; |
1559 | 456 | case DeclSpec::TST_float128: |
1560 | 456 | if (!S.Context.getTargetInfo().hasFloat128Type() && |
1561 | 456 | !S.getLangOpts().SYCLIsDevice40 && |
1562 | 456 | !(23 S.getLangOpts().OpenMP23 && S.getLangOpts().OpenMPIsTargetDevice11 )) |
1563 | 12 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) |
1564 | 12 | << "__float128"; |
1565 | 456 | Result = Context.Float128Ty; |
1566 | 456 | break; |
1567 | 109 | case DeclSpec::TST_ibm128: |
1568 | 109 | if (!S.Context.getTargetInfo().hasIbm128Type() && |
1569 | 109 | !S.getLangOpts().SYCLIsDevice17 && |
1570 | 109 | !(17 S.getLangOpts().OpenMP17 && S.getLangOpts().OpenMPIsTargetDevice2 )) |
1571 | 15 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_type_unsupported) << "__ibm128"; |
1572 | 109 | Result = Context.Ibm128Ty; |
1573 | 109 | break; |
1574 | 887k | case DeclSpec::TST_bool: |
1575 | 887k | Result = Context.BoolTy; // _Bool or bool |
1576 | 887k | break; |
1577 | 6 | case DeclSpec::TST_decimal32: // _Decimal32 |
1578 | 6 | case DeclSpec::TST_decimal64: // _Decimal64 |
1579 | 8 | case DeclSpec::TST_decimal128: // _Decimal128 |
1580 | 8 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); |
1581 | 8 | Result = Context.IntTy; |
1582 | 8 | declarator.setInvalidType(true); |
1583 | 8 | break; |
1584 | 26.0k | case DeclSpec::TST_class: |
1585 | 472k | case DeclSpec::TST_enum: |
1586 | 505k | case DeclSpec::TST_union: |
1587 | 1.42M | case DeclSpec::TST_struct: |
1588 | 1.42M | case DeclSpec::TST_interface: { |
1589 | 1.42M | TagDecl *D = dyn_cast_or_null<TagDecl>(DS.getRepAsDecl()); |
1590 | 1.42M | if (!D) { |
1591 | | // This can happen in C++ with ambiguous lookups. |
1592 | 16.5k | Result = Context.IntTy; |
1593 | 16.5k | declarator.setInvalidType(true); |
1594 | 16.5k | break; |
1595 | 16.5k | } |
1596 | | |
1597 | | // If the type is deprecated or unavailable, diagnose it. |
1598 | 1.40M | S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); |
1599 | | |
1600 | 1.40M | assert(DS.getTypeSpecWidth() == TypeSpecifierWidth::Unspecified && |
1601 | 1.40M | DS.getTypeSpecComplex() == 0 && |
1602 | 1.40M | DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified && |
1603 | 1.40M | "No qualifiers on tag names!"); |
1604 | | |
1605 | | // TypeQuals handled by caller. |
1606 | 1.40M | Result = Context.getTypeDeclType(D); |
1607 | | |
1608 | | // In both C and C++, make an ElaboratedType. |
1609 | 1.40M | ElaboratedTypeKeyword Keyword |
1610 | 1.40M | = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); |
1611 | 1.40M | Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result, |
1612 | 1.40M | DS.isTypeSpecOwned() ? D450k : nullptr954k ); |
1613 | 1.40M | break; |
1614 | 1.40M | } |
1615 | 142M | case DeclSpec::TST_typename: { |
1616 | 142M | assert(DS.getTypeSpecWidth() == TypeSpecifierWidth::Unspecified && |
1617 | 142M | DS.getTypeSpecComplex() == 0 && |
1618 | 142M | DS.getTypeSpecSign() == TypeSpecifierSign::Unspecified && |
1619 | 142M | "Can't handle qualifiers on typedef names yet!"); |
1620 | 142M | Result = S.GetTypeFromParser(DS.getRepAsType()); |
1621 | 142M | if (Result.isNull()) { |
1622 | 0 | declarator.setInvalidType(true); |
1623 | 0 | } |
1624 | | |
1625 | | // TypeQuals handled by caller. |
1626 | 142M | break; |
1627 | 142M | } |
1628 | 23 | case DeclSpec::TST_typeof_unqualType: |
1629 | 158 | case DeclSpec::TST_typeofType: |
1630 | | // FIXME: Preserve type source info. |
1631 | 158 | Result = S.GetTypeFromParser(DS.getRepAsType()); |
1632 | 158 | assert(!Result.isNull() && "Didn't get a type for typeof?"); |
1633 | 158 | if (!Result->isDependentType()) |
1634 | 155 | if (const TagType *TT = Result->getAs<TagType>()) |
1635 | 13 | S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); |
1636 | | // TypeQuals handled by caller. |
1637 | 158 | Result = Context.getTypeOfType( |
1638 | 158 | Result, DS.getTypeSpecType() == DeclSpec::TST_typeof_unqualType |
1639 | 158 | ? TypeOfKind::Unqualified23 |
1640 | 158 | : TypeOfKind::Qualified135 ); |
1641 | 158 | break; |
1642 | 38 | case DeclSpec::TST_typeof_unqualExpr: |
1643 | 3.26k | case DeclSpec::TST_typeofExpr: { |
1644 | 3.26k | Expr *E = DS.getRepAsExpr(); |
1645 | 3.26k | assert(E && "Didn't get an expression for typeof?"); |
1646 | | // TypeQuals handled by caller. |
1647 | 3.26k | Result = S.BuildTypeofExprType(E, DS.getTypeSpecType() == |
1648 | 3.26k | DeclSpec::TST_typeof_unqualExpr |
1649 | 3.26k | ? TypeOfKind::Unqualified38 |
1650 | 3.26k | : TypeOfKind::Qualified3.22k ); |
1651 | 3.26k | if (Result.isNull()) { |
1652 | 0 | Result = Context.IntTy; |
1653 | 0 | declarator.setInvalidType(true); |
1654 | 0 | } |
1655 | 3.26k | break; |
1656 | 3.26k | } |
1657 | 62.1k | case DeclSpec::TST_decltype: { |
1658 | 62.1k | Expr *E = DS.getRepAsExpr(); |
1659 | 62.1k | assert(E && "Didn't get an expression for decltype?"); |
1660 | | // TypeQuals handled by caller. |
1661 | 62.1k | Result = S.BuildDecltypeType(E); |
1662 | 62.1k | if (Result.isNull()) { |
1663 | 0 | Result = Context.IntTy; |
1664 | 0 | declarator.setInvalidType(true); |
1665 | 0 | } |
1666 | 62.1k | break; |
1667 | 62.1k | } |
1668 | 96.5k | #define TRANSFORM_TYPE_TRAIT_DEF(_, Trait) case DeclSpec::TST_##Trait: |
1669 | 96.5k | #include "clang/Basic/TransformTypeTraits.def"62.1k |
1670 | 96.5k | Result = S.GetTypeFromParser(DS.getRepAsType()); |
1671 | 96.5k | assert(!Result.isNull() && "Didn't get a type for the transformation?"); |
1672 | 11.9k | Result = S.BuildUnaryTransformType( |
1673 | 11.9k | Result, TSTToUnaryTransformType(DS.getTypeSpecType()), |
1674 | 11.9k | DS.getTypeSpecTypeLoc()); |
1675 | 11.9k | if (Result.isNull()) { |
1676 | 140 | Result = Context.IntTy; |
1677 | 140 | declarator.setInvalidType(true); |
1678 | 140 | } |
1679 | 11.9k | break; |
1680 | | |
1681 | 93.2k | case DeclSpec::TST_auto: |
1682 | 94.2k | case DeclSpec::TST_decltype_auto: { |
1683 | 94.2k | auto AutoKW = DS.getTypeSpecType() == DeclSpec::TST_decltype_auto |
1684 | 94.2k | ? AutoTypeKeyword::DecltypeAuto944 |
1685 | 94.2k | : AutoTypeKeyword::Auto93.2k ; |
1686 | | |
1687 | 94.2k | ConceptDecl *TypeConstraintConcept = nullptr; |
1688 | 94.2k | llvm::SmallVector<TemplateArgument, 8> TemplateArgs; |
1689 | 94.2k | if (DS.isConstrainedAuto()) { |
1690 | 391 | if (TemplateIdAnnotation *TemplateId = DS.getRepAsTemplateId()) { |
1691 | 381 | TypeConstraintConcept = |
1692 | 381 | cast<ConceptDecl>(TemplateId->Template.get().getAsTemplateDecl()); |
1693 | 381 | TemplateArgumentListInfo TemplateArgsInfo; |
1694 | 381 | TemplateArgsInfo.setLAngleLoc(TemplateId->LAngleLoc); |
1695 | 381 | TemplateArgsInfo.setRAngleLoc(TemplateId->RAngleLoc); |
1696 | 381 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), |
1697 | 381 | TemplateId->NumArgs); |
1698 | 381 | S.translateTemplateArguments(TemplateArgsPtr, TemplateArgsInfo); |
1699 | 381 | for (const auto &ArgLoc : TemplateArgsInfo.arguments()) |
1700 | 205 | TemplateArgs.push_back(ArgLoc.getArgument()); |
1701 | 381 | } else { |
1702 | 10 | declarator.setInvalidType(true); |
1703 | 10 | } |
1704 | 391 | } |
1705 | 94.2k | Result = S.Context.getAutoType(QualType(), AutoKW, |
1706 | 94.2k | /*IsDependent*/ false, /*IsPack=*/false, |
1707 | 94.2k | TypeConstraintConcept, TemplateArgs); |
1708 | 94.2k | break; |
1709 | 93.2k | } |
1710 | | |
1711 | 52 | case DeclSpec::TST_auto_type: |
1712 | 52 | Result = Context.getAutoType(QualType(), AutoTypeKeyword::GNUAutoType, false); |
1713 | 52 | break; |
1714 | | |
1715 | 62 | case DeclSpec::TST_unknown_anytype: |
1716 | 62 | Result = Context.UnknownAnyTy; |
1717 | 62 | break; |
1718 | | |
1719 | 3.11k | case DeclSpec::TST_atomic: |
1720 | 3.11k | Result = S.GetTypeFromParser(DS.getRepAsType()); |
1721 | 3.11k | assert(!Result.isNull() && "Didn't get a type for _Atomic?"); |
1722 | 3.11k | Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); |
1723 | 3.11k | if (Result.isNull()) { |
1724 | 13 | Result = Context.IntTy; |
1725 | 13 | declarator.setInvalidType(true); |
1726 | 13 | } |
1727 | 3.11k | break; |
1728 | | |
1729 | 0 | #define GENERIC_IMAGE_TYPE(ImgType, Id) \ |
1730 | 8.62k | case DeclSpec::TST_##ImgType##_t: \ |
1731 | 8.62k | switch (getImageAccess(DS.getAttributes())) { \ |
1732 | 2.33k | case OpenCLAccessAttr::Keyword_write_only: \ |
1733 | 2.33k | Result = Context.Id##WOTy; \ |
1734 | 2.33k | break; \ |
1735 | 2.21k | case OpenCLAccessAttr::Keyword_read_write: \ |
1736 | 2.21k | Result = Context.Id##RWTy; \ |
1737 | 2.21k | break; \ |
1738 | 4.07k | case OpenCLAccessAttr::Keyword_read_only: \ |
1739 | 4.07k | Result = Context.Id##ROTy; \ |
1740 | 4.07k | break; \ |
1741 | 0 | case OpenCLAccessAttr::SpellingNotCalculated: \ |
1742 | 0 | llvm_unreachable("Spelling not yet calculated"); \ |
1743 | 8.62k | } \ |
1744 | 8.62k | break; |
1745 | 3.11k | #include "clang/Basic/OpenCLImageTypes.def" |
1746 | | |
1747 | 1.80k | case DeclSpec::TST_error: |
1748 | 1.80k | Result = Context.IntTy; |
1749 | 1.80k | declarator.setInvalidType(true); |
1750 | 1.80k | break; |
1751 | 155M | } |
1752 | | |
1753 | | // FIXME: we want resulting declarations to be marked invalid, but claiming |
1754 | | // the type is invalid is too strong - e.g. it causes ActOnTypeName to return |
1755 | | // a null type. |
1756 | 155M | if (Result->containsErrors()) |
1757 | 105 | declarator.setInvalidType(); |
1758 | | |
1759 | 155M | if (S.getLangOpts().OpenCL) { |
1760 | 791k | const auto &OpenCLOptions = S.getOpenCLOptions(); |
1761 | 791k | bool IsOpenCLC30Compatible = |
1762 | 791k | S.getLangOpts().getOpenCLCompatibleVersion() == 300; |
1763 | | // OpenCL C v3.0 s6.3.3 - OpenCL image types require __opencl_c_images |
1764 | | // support. |
1765 | | // OpenCL C v3.0 s6.2.1 - OpenCL 3d image write types requires support |
1766 | | // for OpenCL C 2.0, or OpenCL C 3.0 or newer and the |
1767 | | // __opencl_c_3d_image_writes feature. OpenCL C v3.0 API s4.2 - For devices |
1768 | | // that support OpenCL 3.0, cl_khr_3d_image_writes must be returned when and |
1769 | | // only when the optional feature is supported |
1770 | 791k | if ((Result->isImageType() || Result->isSamplerT()782k ) && |
1771 | 791k | (10.9k IsOpenCLC30Compatible10.9k && |
1772 | 10.9k | !OpenCLOptions.isSupported("__opencl_c_images", S.getLangOpts())1.55k )) { |
1773 | 24 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_opencl_requires_extension) |
1774 | 24 | << 0 << Result << "__opencl_c_images"; |
1775 | 24 | declarator.setInvalidType(); |
1776 | 791k | } else if (Result->isOCLImage3dWOType() && |
1777 | 791k | !OpenCLOptions.isSupported("cl_khr_3d_image_writes", |
1778 | 327 | S.getLangOpts())) { |
1779 | 3 | S.Diag(DS.getTypeSpecTypeLoc(), diag::err_opencl_requires_extension) |
1780 | 3 | << 0 << Result |
1781 | 3 | << (IsOpenCLC30Compatible |
1782 | 3 | ? "cl_khr_3d_image_writes and __opencl_c_3d_image_writes"2 |
1783 | 3 | : "cl_khr_3d_image_writes"1 ); |
1784 | 3 | declarator.setInvalidType(); |
1785 | 3 | } |
1786 | 791k | } |
1787 | | |
1788 | 155M | bool IsFixedPointType = DS.getTypeSpecType() == DeclSpec::TST_accum || |
1789 | 155M | DS.getTypeSpecType() == DeclSpec::TST_fract155M ; |
1790 | | |
1791 | | // Only fixed point types can be saturated |
1792 | 155M | if (DS.isTypeSpecSat() && !IsFixedPointType562 ) |
1793 | 11 | S.Diag(DS.getTypeSpecSatLoc(), diag::err_invalid_saturation_spec) |
1794 | 11 | << DS.getSpecifierName(DS.getTypeSpecType(), |
1795 | 11 | Context.getPrintingPolicy()); |
1796 | | |
1797 | | // Handle complex types. |
1798 | 155M | if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { |
1799 | 6.35k | if (S.getLangOpts().Freestanding) |
1800 | 798 | S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); |
1801 | 6.35k | Result = Context.getComplexType(Result); |
1802 | 155M | } else if (DS.isTypeAltiVecVector()) { |
1803 | 97.7k | unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); |
1804 | 97.7k | assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); |
1805 | 97.7k | VectorKind VecKind = VectorKind::AltiVecVector; |
1806 | 97.7k | if (DS.isTypeAltiVecPixel()) |
1807 | 2.40k | VecKind = VectorKind::AltiVecPixel; |
1808 | 95.3k | else if (DS.isTypeAltiVecBool()) |
1809 | 17.6k | VecKind = VectorKind::AltiVecBool; |
1810 | 97.7k | Result = Context.getVectorType(Result, 128/typeSize, VecKind); |
1811 | 97.7k | } |
1812 | | |
1813 | | // FIXME: Imaginary. |
1814 | 155M | if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) |
1815 | 10 | S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); |
1816 | | |
1817 | | // Before we process any type attributes, synthesize a block literal |
1818 | | // function declarator if necessary. |
1819 | 155M | if (declarator.getContext() == DeclaratorContext::BlockLiteral) |
1820 | 3.36k | maybeSynthesizeBlockSignature(state, Result); |
1821 | | |
1822 | | // Apply any type attributes from the decl spec. This may cause the |
1823 | | // list of type attributes to be temporarily saved while the type |
1824 | | // attributes are pushed around. |
1825 | | // pipe attributes will be handled later ( at GetFullTypeForDeclarator ) |
1826 | 155M | if (!DS.isTypeSpecPipe()) { |
1827 | | // We also apply declaration attributes that "slide" to the decl spec. |
1828 | | // Ordering can be important for attributes. The decalaration attributes |
1829 | | // come syntactically before the decl spec attributes, so we process them |
1830 | | // in that order. |
1831 | 155M | ParsedAttributesView SlidingAttrs; |
1832 | 155M | for (ParsedAttr &AL : declarator.getDeclarationAttributes()) { |
1833 | 117k | if (AL.slidesFromDeclToDeclSpecLegacyBehavior()) { |
1834 | 32 | SlidingAttrs.addAtEnd(&AL); |
1835 | | |
1836 | | // For standard syntax attributes, which would normally appertain to the |
1837 | | // declaration here, suggest moving them to the type instead. But only |
1838 | | // do this for our own vendor attributes; moving other vendors' |
1839 | | // attributes might hurt portability. |
1840 | | // There's one special case that we need to deal with here: The |
1841 | | // `MatrixType` attribute may only be used in a typedef declaration. If |
1842 | | // it's being used anywhere else, don't output the warning as |
1843 | | // ProcessDeclAttributes() will output an error anyway. |
1844 | 32 | if (AL.isStandardAttributeSyntax() && AL.isClangScope() && |
1845 | 32 | !(AL.getKind() == ParsedAttr::AT_MatrixType && |
1846 | 32 | DS.getStorageClassSpec() != DeclSpec::SCS_typedef3 )) { |
1847 | 31 | S.Diag(AL.getLoc(), diag::warn_type_attribute_deprecated_on_decl) |
1848 | 31 | << AL; |
1849 | 31 | } |
1850 | 32 | } |
1851 | 117k | } |
1852 | | // During this call to processTypeAttrs(), |
1853 | | // TypeProcessingState::getCurrentAttributes() will erroneously return a |
1854 | | // reference to the DeclSpec attributes, rather than the declaration |
1855 | | // attributes. However, this doesn't matter, as getCurrentAttributes() |
1856 | | // is only called when distributing attributes from one attribute list |
1857 | | // to another. Declaration attributes are always C++11 attributes, and these |
1858 | | // are never distributed. |
1859 | 155M | processTypeAttrs(state, Result, TAL_DeclSpec, SlidingAttrs); |
1860 | 155M | processTypeAttrs(state, Result, TAL_DeclSpec, DS.getAttributes()); |
1861 | 155M | } |
1862 | | |
1863 | | // Apply const/volatile/restrict qualifiers to T. |
1864 | 155M | if (unsigned TypeQuals = DS.getTypeQualifiers()) { |
1865 | | // Warn about CV qualifiers on function types. |
1866 | | // C99 6.7.3p8: |
1867 | | // If the specification of a function type includes any type qualifiers, |
1868 | | // the behavior is undefined. |
1869 | | // C++11 [dcl.fct]p7: |
1870 | | // The effect of a cv-qualifier-seq in a function declarator is not the |
1871 | | // same as adding cv-qualification on top of the function type. In the |
1872 | | // latter case, the cv-qualifiers are ignored. |
1873 | 6.52M | if (Result->isFunctionType()) { |
1874 | 22 | diagnoseAndRemoveTypeQualifiers( |
1875 | 22 | S, DS, TypeQuals, Result, DeclSpec::TQ_const | DeclSpec::TQ_volatile, |
1876 | 22 | S.getLangOpts().CPlusPlus |
1877 | 22 | ? diag::warn_typecheck_function_qualifiers_ignored18 |
1878 | 22 | : diag::warn_typecheck_function_qualifiers_unspecified4 ); |
1879 | | // No diagnostic for 'restrict' or '_Atomic' applied to a |
1880 | | // function type; we'll diagnose those later, in BuildQualifiedType. |
1881 | 22 | } |
1882 | | |
1883 | | // C++11 [dcl.ref]p1: |
1884 | | // Cv-qualified references are ill-formed except when the |
1885 | | // cv-qualifiers are introduced through the use of a typedef-name |
1886 | | // or decltype-specifier, in which case the cv-qualifiers are ignored. |
1887 | | // |
1888 | | // There don't appear to be any other contexts in which a cv-qualified |
1889 | | // reference type could be formed, so the 'ill-formed' clause here appears |
1890 | | // to never happen. |
1891 | 6.52M | if (TypeQuals && Result->isReferenceType()6.52M ) { |
1892 | 78 | diagnoseAndRemoveTypeQualifiers( |
1893 | 78 | S, DS, TypeQuals, Result, |
1894 | 78 | DeclSpec::TQ_const | DeclSpec::TQ_volatile | DeclSpec::TQ_atomic, |
1895 | 78 | diag::warn_typecheck_reference_qualifiers); |
1896 | 78 | } |
1897 | | |
1898 | | // C90 6.5.3 constraints: "The same type qualifier shall not appear more |
1899 | | // than once in the same specifier-list or qualifier-list, either directly |
1900 | | // or via one or more typedefs." |
1901 | 6.52M | if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus3.50M |
1902 | 6.52M | && TypeQuals & Result.getCVRQualifiers()594 ) { |
1903 | 8 | if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()6 ) { |
1904 | 6 | S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) |
1905 | 6 | << "const"; |
1906 | 6 | } |
1907 | | |
1908 | 8 | if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()2 ) { |
1909 | 2 | S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) |
1910 | 2 | << "volatile"; |
1911 | 2 | } |
1912 | | |
1913 | | // C90 doesn't have restrict nor _Atomic, so it doesn't force us to |
1914 | | // produce a warning in this case. |
1915 | 8 | } |
1916 | | |
1917 | 6.52M | QualType Qualified = S.BuildQualifiedType(Result, DeclLoc, TypeQuals, &DS); |
1918 | | |
1919 | | // If adding qualifiers fails, just use the unqualified type. |
1920 | 6.52M | if (Qualified.isNull()) |
1921 | 21 | declarator.setInvalidType(true); |
1922 | 6.52M | else |
1923 | 6.52M | Result = Qualified; |
1924 | 6.52M | } |
1925 | | |
1926 | 155M | assert(!Result.isNull() && "This function should not return a null type"); |
1927 | 155M | return Result; |
1928 | 155M | } |
1929 | | |
1930 | 143 | static std::string getPrintableNameForEntity(DeclarationName Entity) { |
1931 | 143 | if (Entity) |
1932 | 108 | return Entity.getAsString(); |
1933 | | |
1934 | 35 | return "type name"; |
1935 | 143 | } |
1936 | | |
1937 | 4.00k | static bool isDependentOrGNUAutoType(QualType T) { |
1938 | 4.00k | if (T->isDependentType()) |
1939 | 490 | return true; |
1940 | | |
1941 | 3.51k | const auto *AT = dyn_cast<AutoType>(T); |
1942 | 3.51k | return AT && AT->isGNUAutoType()6 ; |
1943 | 4.00k | } |
1944 | | |
1945 | | QualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, |
1946 | 7.55M | Qualifiers Qs, const DeclSpec *DS) { |
1947 | 7.55M | if (T.isNull()) |
1948 | 0 | return QualType(); |
1949 | | |
1950 | | // Ignore any attempt to form a cv-qualified reference. |
1951 | 7.55M | if (T->isReferenceType()) { |
1952 | 113 | Qs.removeConst(); |
1953 | 113 | Qs.removeVolatile(); |
1954 | 113 | } |
1955 | | |
1956 | | // Enforce C99 6.7.3p2: "Types other than pointer types derived from |
1957 | | // object or incomplete types shall not be restrict-qualified." |
1958 | 7.55M | if (Qs.hasRestrict()) { |
1959 | 66.4k | unsigned DiagID = 0; |
1960 | 66.4k | QualType ProblemTy; |
1961 | | |
1962 | 66.4k | if (T->isAnyPointerType() || T->isReferenceType()52 || |
1963 | 66.4k | T->isMemberPointerType()33 ) { |
1964 | 66.4k | QualType EltTy; |
1965 | 66.4k | if (T->isObjCObjectPointerType()) |
1966 | 6 | EltTy = T; |
1967 | 66.4k | else if (const MemberPointerType *PTy = T->getAs<MemberPointerType>()) |
1968 | 6 | EltTy = PTy->getPointeeType(); |
1969 | 66.4k | else |
1970 | 66.4k | EltTy = T->getPointeeType(); |
1971 | | |
1972 | | // If we have a pointer or reference, the pointee must have an object |
1973 | | // incomplete type. |
1974 | 66.4k | if (!EltTy->isIncompleteOrObjectType()) { |
1975 | 2 | DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; |
1976 | 2 | ProblemTy = EltTy; |
1977 | 2 | } |
1978 | 66.4k | } else if (27 !isDependentOrGNUAutoType(T)27 ) { |
1979 | | // For an __auto_type variable, we may not have seen the initializer yet |
1980 | | // and so have no idea whether the underlying type is a pointer type or |
1981 | | // not. |
1982 | 20 | DiagID = diag::err_typecheck_invalid_restrict_not_pointer; |
1983 | 20 | ProblemTy = T; |
1984 | 20 | } |
1985 | | |
1986 | 66.4k | if (DiagID) { |
1987 | 22 | Diag(DS ? DS->getRestrictSpecLoc()15 : Loc7 , DiagID) << ProblemTy; |
1988 | 22 | Qs.removeRestrict(); |
1989 | 22 | } |
1990 | 66.4k | } |
1991 | | |
1992 | 7.55M | return Context.getQualifiedType(T, Qs); |
1993 | 7.55M | } |
1994 | | |
1995 | | QualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, |
1996 | 6.67M | unsigned CVRAU, const DeclSpec *DS) { |
1997 | 6.67M | if (T.isNull()) |
1998 | 6 | return QualType(); |
1999 | | |
2000 | | // Ignore any attempt to form a cv-qualified reference. |
2001 | 6.67M | if (T->isReferenceType()) |
2002 | 93 | CVRAU &= |
2003 | 93 | ~(DeclSpec::TQ_const | DeclSpec::TQ_volatile | DeclSpec::TQ_atomic); |
2004 | | |
2005 | | // Convert from DeclSpec::TQ to Qualifiers::TQ by just dropping TQ_atomic and |
2006 | | // TQ_unaligned; |
2007 | 6.67M | unsigned CVR = CVRAU & ~(DeclSpec::TQ_atomic | DeclSpec::TQ_unaligned); |
2008 | | |
2009 | | // C11 6.7.3/5: |
2010 | | // If the same qualifier appears more than once in the same |
2011 | | // specifier-qualifier-list, either directly or via one or more typedefs, |
2012 | | // the behavior is the same as if it appeared only once. |
2013 | | // |
2014 | | // It's not specified what happens when the _Atomic qualifier is applied to |
2015 | | // a type specified with the _Atomic specifier, but we assume that this |
2016 | | // should be treated as if the _Atomic qualifier appeared multiple times. |
2017 | 6.67M | if (CVRAU & DeclSpec::TQ_atomic && !T->isAtomicType()248 ) { |
2018 | | // C11 6.7.3/5: |
2019 | | // If other qualifiers appear along with the _Atomic qualifier in a |
2020 | | // specifier-qualifier-list, the resulting type is the so-qualified |
2021 | | // atomic type. |
2022 | | // |
2023 | | // Don't need to worry about array types here, since _Atomic can't be |
2024 | | // applied to such types. |
2025 | 246 | SplitQualType Split = T.getSplitUnqualifiedType(); |
2026 | 246 | T = BuildAtomicType(QualType(Split.Ty, 0), |
2027 | 246 | DS ? DS->getAtomicSpecLoc()228 : Loc18 ); |
2028 | 246 | if (T.isNull()) |
2029 | 21 | return T; |
2030 | 225 | Split.Quals.addCVRQualifiers(CVR); |
2031 | 225 | return BuildQualifiedType(T, Loc, Split.Quals); |
2032 | 246 | } |
2033 | | |
2034 | 6.67M | Qualifiers Q = Qualifiers::fromCVRMask(CVR); |
2035 | 6.67M | Q.setUnaligned(CVRAU & DeclSpec::TQ_unaligned); |
2036 | 6.67M | return BuildQualifiedType(T, Loc, Q, DS); |
2037 | 6.67M | } |
2038 | | |
2039 | | /// Build a paren type including \p T. |
2040 | 325k | QualType Sema::BuildParenType(QualType T) { |
2041 | 325k | return Context.getParenType(T); |
2042 | 325k | } |
2043 | | |
2044 | | /// Given that we're building a pointer or reference to the given |
2045 | | static QualType inferARCLifetimeForPointee(Sema &S, QualType type, |
2046 | | SourceLocation loc, |
2047 | 68.4k | bool isReference) { |
2048 | | // Bail out if retention is unrequired or already specified. |
2049 | 68.4k | if (!type->isObjCLifetimeType() || |
2050 | 68.4k | type.getObjCLifetime() != Qualifiers::OCL_None1.59k ) |
2051 | 68.4k | return type; |
2052 | | |
2053 | 24 | Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; |
2054 | | |
2055 | | // If the object type is const-qualified, we can safely use |
2056 | | // __unsafe_unretained. This is safe (because there are no read |
2057 | | // barriers), and it'll be safe to coerce anything but __weak* to |
2058 | | // the resulting type. |
2059 | 24 | if (type.isConstQualified()) { |
2060 | 2 | implicitLifetime = Qualifiers::OCL_ExplicitNone; |
2061 | | |
2062 | | // Otherwise, check whether the static type does not require |
2063 | | // retaining. This currently only triggers for Class (possibly |
2064 | | // protocol-qualifed, and arrays thereof). |
2065 | 22 | } else if (type->isObjCARCImplicitlyUnretainedType()) { |
2066 | 3 | implicitLifetime = Qualifiers::OCL_ExplicitNone; |
2067 | | |
2068 | | // If we are in an unevaluated context, like sizeof, skip adding a |
2069 | | // qualification. |
2070 | 19 | } else if (S.isUnevaluatedContext()) { |
2071 | 4 | return type; |
2072 | | |
2073 | | // If that failed, give an error and recover using __strong. __strong |
2074 | | // is the option most likely to prevent spurious second-order diagnostics, |
2075 | | // like when binding a reference to a field. |
2076 | 15 | } else { |
2077 | | // These types can show up in private ivars in system headers, so |
2078 | | // we need this to not be an error in those cases. Instead we |
2079 | | // want to delay. |
2080 | 15 | if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { |
2081 | 14 | S.DelayedDiagnostics.add( |
2082 | 14 | sema::DelayedDiagnostic::makeForbiddenType(loc, |
2083 | 14 | diag::err_arc_indirect_no_ownership, type, isReference)); |
2084 | 14 | } else { |
2085 | 1 | S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; |
2086 | 1 | } |
2087 | 15 | implicitLifetime = Qualifiers::OCL_Strong; |
2088 | 15 | } |
2089 | 20 | assert(implicitLifetime && "didn't infer any lifetime!"); |
2090 | | |
2091 | 20 | Qualifiers qs; |
2092 | 20 | qs.addObjCLifetime(implicitLifetime); |
2093 | 20 | return S.Context.getQualifiedType(type, qs); |
2094 | 20 | } |
2095 | | |
2096 | 87 | static std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ |
2097 | 87 | std::string Quals = FnTy->getMethodQuals().getAsString(); |
2098 | | |
2099 | 87 | switch (FnTy->getRefQualifier()) { |
2100 | 48 | case RQ_None: |
2101 | 48 | break; |
2102 | | |
2103 | 18 | case RQ_LValue: |
2104 | 18 | if (!Quals.empty()) |
2105 | 0 | Quals += ' '; |
2106 | 18 | Quals += '&'; |
2107 | 18 | break; |
2108 | | |
2109 | 21 | case RQ_RValue: |
2110 | 21 | if (!Quals.empty()) |
2111 | 2 | Quals += ' '; |
2112 | 21 | Quals += "&&"; |
2113 | 21 | break; |
2114 | 87 | } |
2115 | | |
2116 | 87 | return Quals; |
2117 | 87 | } |
2118 | | |
2119 | | namespace { |
2120 | | /// Kinds of declarator that cannot contain a qualified function type. |
2121 | | /// |
2122 | | /// C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: |
2123 | | /// a function type with a cv-qualifier or a ref-qualifier can only appear |
2124 | | /// at the topmost level of a type. |
2125 | | /// |
2126 | | /// Parens and member pointers are permitted. We don't diagnose array and |
2127 | | /// function declarators, because they don't allow function types at all. |
2128 | | /// |
2129 | | /// The values of this enum are used in diagnostics. |
2130 | | enum QualifiedFunctionKind { QFK_BlockPointer, QFK_Pointer, QFK_Reference }; |
2131 | | } // end anonymous namespace |
2132 | | |
2133 | | /// Check whether the type T is a qualified function type, and if it is, |
2134 | | /// diagnose that it cannot be contained within the given kind of declarator. |
2135 | | static bool checkQualifiedFunction(Sema &S, QualType T, SourceLocation Loc, |
2136 | 12.9M | QualifiedFunctionKind QFK) { |
2137 | | // Does T refer to a function type with a cv-qualifier or a ref-qualifier? |
2138 | 12.9M | const FunctionProtoType *FPT = T->getAs<FunctionProtoType>(); |
2139 | 12.9M | if (!FPT || |
2140 | 12.9M | (277k FPT->getMethodQuals().empty()277k && FPT->getRefQualifier() == RQ_None277k )) |
2141 | 12.9M | return false; |
2142 | | |
2143 | 24 | S.Diag(Loc, diag::err_compound_qualified_function_type) |
2144 | 24 | << QFK << isa<FunctionType>(T.IgnoreParens()) << T |
2145 | 24 | << getFunctionQualifiersAsString(FPT); |
2146 | 24 | return true; |
2147 | 12.9M | } |
2148 | | |
2149 | 4.39k | bool Sema::CheckQualifiedFunctionForTypeId(QualType T, SourceLocation Loc) { |
2150 | 4.39k | const FunctionProtoType *FPT = T->getAs<FunctionProtoType>(); |
2151 | 4.39k | if (!FPT || |
2152 | 4.39k | (6 FPT->getMethodQuals().empty()6 && FPT->getRefQualifier() == RQ_None3 )) |
2153 | 4.38k | return false; |
2154 | | |
2155 | 6 | Diag(Loc, diag::err_qualified_function_typeid) |
2156 | 6 | << T << getFunctionQualifiersAsString(FPT); |
2157 | 6 | return true; |
2158 | 4.39k | } |
2159 | | |
2160 | | // Helper to deduce addr space of a pointee type in OpenCL mode. |
2161 | 48.6k | static QualType deduceOpenCLPointeeAddrSpace(Sema &S, QualType PointeeType) { |
2162 | 48.6k | if (!PointeeType->isUndeducedAutoType() && !PointeeType->isDependentType()48.6k && |
2163 | 48.6k | !PointeeType->isSamplerT()48.5k && |
2164 | 48.6k | !PointeeType.hasAddressSpace()48.5k ) |
2165 | 7.62k | PointeeType = S.getASTContext().getAddrSpaceQualType( |
2166 | 7.62k | PointeeType, S.getASTContext().getDefaultOpenCLPointeeAddrSpace()); |
2167 | 48.6k | return PointeeType; |
2168 | 48.6k | } |
2169 | | |
2170 | | /// Build a pointer type. |
2171 | | /// |
2172 | | /// \param T The type to which we'll be building a pointer. |
2173 | | /// |
2174 | | /// \param Loc The location of the entity whose type involves this |
2175 | | /// pointer type or, if there is no such entity, the location of the |
2176 | | /// type that will have pointer type. |
2177 | | /// |
2178 | | /// \param Entity The name of the entity that involves the pointer |
2179 | | /// type, if known. |
2180 | | /// |
2181 | | /// \returns A suitable pointer type, if there are no |
2182 | | /// errors. Otherwise, returns a NULL type. |
2183 | | QualType Sema::BuildPointerType(QualType T, |
2184 | 9.12M | SourceLocation Loc, DeclarationName Entity) { |
2185 | 9.12M | if (T->isReferenceType()) { |
2186 | | // C++ 8.3.2p4: There shall be no ... pointers to references ... |
2187 | 61 | Diag(Loc, diag::err_illegal_decl_pointer_to_reference) |
2188 | 61 | << getPrintableNameForEntity(Entity) << T; |
2189 | 61 | return QualType(); |
2190 | 61 | } |
2191 | | |
2192 | 9.12M | if (T->isFunctionType() && getLangOpts().OpenCL209k && |
2193 | 9.12M | !getOpenCLOptions().isAvailableOption("__cl_clang_function_pointers", |
2194 | 11 | getLangOpts())) { |
2195 | 7 | Diag(Loc, diag::err_opencl_function_pointer) << /*pointer*/ 0; |
2196 | 7 | return QualType(); |
2197 | 7 | } |
2198 | | |
2199 | 9.12M | if (getLangOpts().HLSL && Loc.isValid()36 ) { |
2200 | 8 | Diag(Loc, diag::err_hlsl_pointers_unsupported) << 0; |
2201 | 8 | return QualType(); |
2202 | 8 | } |
2203 | | |
2204 | 9.12M | if (checkQualifiedFunction(*this, T, Loc, QFK_Pointer)) |
2205 | 12 | return QualType(); |
2206 | | |
2207 | 9.12M | assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); |
2208 | | |
2209 | | // In ARC, it is forbidden to build pointers to unqualified pointers. |
2210 | 9.12M | if (getLangOpts().ObjCAutoRefCount) |
2211 | 51.5k | T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); |
2212 | | |
2213 | 9.12M | if (getLangOpts().OpenCL) |
2214 | 48.3k | T = deduceOpenCLPointeeAddrSpace(*this, T); |
2215 | | |
2216 | | // In WebAssembly, pointers to reference types and pointers to tables are |
2217 | | // illegal. |
2218 | 9.12M | if (getASTContext().getTargetInfo().getTriple().isWasm()) { |
2219 | 255 | if (T.isWebAssemblyReferenceType()) { |
2220 | 34 | Diag(Loc, diag::err_wasm_reference_pr) << 0; |
2221 | 34 | return QualType(); |
2222 | 34 | } |
2223 | | |
2224 | | // We need to desugar the type here in case T is a ParenType. |
2225 | 221 | if (T->getUnqualifiedDesugaredType()->isWebAssemblyTableType()) { |
2226 | 12 | Diag(Loc, diag::err_wasm_table_pr) << 0; |
2227 | 12 | return QualType(); |
2228 | 12 | } |
2229 | 221 | } |
2230 | | |
2231 | | // Build the pointer type. |
2232 | 9.12M | return Context.getPointerType(T); |
2233 | 9.12M | } |
2234 | | |
2235 | | /// Build a reference type. |
2236 | | /// |
2237 | | /// \param T The type to which we'll be building a reference. |
2238 | | /// |
2239 | | /// \param Loc The location of the entity whose type involves this |
2240 | | /// reference type or, if there is no such entity, the location of the |
2241 | | /// type that will have reference type. |
2242 | | /// |
2243 | | /// \param Entity The name of the entity that involves the reference |
2244 | | /// type, if known. |
2245 | | /// |
2246 | | /// \returns A suitable reference type, if there are no |
2247 | | /// errors. Otherwise, returns a NULL type. |
2248 | | QualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, |
2249 | | SourceLocation Loc, |
2250 | 3.73M | DeclarationName Entity) { |
2251 | 3.73M | assert(Context.getCanonicalType(T) != Context.OverloadTy && |
2252 | 3.73M | "Unresolved overloaded function type"); |
2253 | | |
2254 | | // C++0x [dcl.ref]p6: |
2255 | | // If a typedef (7.1.3), a type template-parameter (14.3.1), or a |
2256 | | // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a |
2257 | | // type T, an attempt to create the type "lvalue reference to cv TR" creates |
2258 | | // the type "lvalue reference to T", while an attempt to create the type |
2259 | | // "rvalue reference to cv TR" creates the type TR. |
2260 | 3.73M | bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>()836k ; |
2261 | | |
2262 | | // C++ [dcl.ref]p4: There shall be no references to references. |
2263 | | // |
2264 | | // According to C++ DR 106, references to references are only |
2265 | | // diagnosed when they are written directly (e.g., "int & &"), |
2266 | | // but not when they happen via a typedef: |
2267 | | // |
2268 | | // typedef int& intref; |
2269 | | // typedef intref& intref2; |
2270 | | // |
2271 | | // Parser::ParseDeclaratorInternal diagnoses the case where |
2272 | | // references are written directly; here, we handle the |
2273 | | // collapsing of references-to-references as described in C++0x. |
2274 | | // DR 106 and 540 introduce reference-collapsing into C++98/03. |
2275 | | |
2276 | | // C++ [dcl.ref]p1: |
2277 | | // A declarator that specifies the type "reference to cv void" |
2278 | | // is ill-formed. |
2279 | 3.73M | if (T->isVoidType()) { |
2280 | 29 | Diag(Loc, diag::err_reference_to_void); |
2281 | 29 | return QualType(); |
2282 | 29 | } |
2283 | | |
2284 | 3.73M | if (getLangOpts().HLSL && Loc.isValid()33 ) { |
2285 | 5 | Diag(Loc, diag::err_hlsl_pointers_unsupported) << 1; |
2286 | 5 | return QualType(); |
2287 | 5 | } |
2288 | | |
2289 | 3.73M | if (checkQualifiedFunction(*this, T, Loc, QFK_Reference)) |
2290 | 12 | return QualType(); |
2291 | | |
2292 | 3.73M | if (T->isFunctionType() && getLangOpts().OpenCL7.18k && |
2293 | 3.73M | !getOpenCLOptions().isAvailableOption("__cl_clang_function_pointers", |
2294 | 10 | getLangOpts())) { |
2295 | 5 | Diag(Loc, diag::err_opencl_function_pointer) << /*reference*/ 1; |
2296 | 5 | return QualType(); |
2297 | 5 | } |
2298 | | |
2299 | | // In ARC, it is forbidden to build references to unqualified pointers. |
2300 | 3.73M | if (getLangOpts().ObjCAutoRefCount) |
2301 | 16.9k | T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); |
2302 | | |
2303 | 3.73M | if (getLangOpts().OpenCL) |
2304 | 112 | T = deduceOpenCLPointeeAddrSpace(*this, T); |
2305 | | |
2306 | | // In WebAssembly, references to reference types and tables are illegal. |
2307 | 3.73M | if (getASTContext().getTargetInfo().getTriple().isWasm() && |
2308 | 3.73M | T.isWebAssemblyReferenceType()38 ) { |
2309 | 0 | Diag(Loc, diag::err_wasm_reference_pr) << 1; |
2310 | 0 | return QualType(); |
2311 | 0 | } |
2312 | 3.73M | if (T->isWebAssemblyTableType()) { |
2313 | 0 | Diag(Loc, diag::err_wasm_table_pr) << 1; |
2314 | 0 | return QualType(); |
2315 | 0 | } |
2316 | | |
2317 | | // Handle restrict on references. |
2318 | 3.73M | if (LValueRef) |
2319 | 2.96M | return Context.getLValueReferenceType(T, SpelledAsLValue); |
2320 | 768k | return Context.getRValueReferenceType(T); |
2321 | 3.73M | } |
2322 | | |
2323 | | /// Build a Read-only Pipe type. |
2324 | | /// |
2325 | | /// \param T The type to which we'll be building a Pipe. |
2326 | | /// |
2327 | | /// \param Loc We do not use it for now. |
2328 | | /// |
2329 | | /// \returns A suitable pipe type, if there are no errors. Otherwise, returns a |
2330 | | /// NULL type. |
2331 | 249 | QualType Sema::BuildReadPipeType(QualType T, SourceLocation Loc) { |
2332 | 249 | return Context.getReadPipeType(T); |
2333 | 249 | } |
2334 | | |
2335 | | /// Build a Write-only Pipe type. |
2336 | | /// |
2337 | | /// \param T The type to which we'll be building a Pipe. |
2338 | | /// |
2339 | | /// \param Loc We do not use it for now. |
2340 | | /// |
2341 | | /// \returns A suitable pipe type, if there are no errors. Otherwise, returns a |
2342 | | /// NULL type. |
2343 | 0 | QualType Sema::BuildWritePipeType(QualType T, SourceLocation Loc) { |
2344 | 0 | return Context.getWritePipeType(T); |
2345 | 0 | } |
2346 | | |
2347 | | /// Build a bit-precise integer type. |
2348 | | /// |
2349 | | /// \param IsUnsigned Boolean representing the signedness of the type. |
2350 | | /// |
2351 | | /// \param BitWidth Size of this int type in bits, or an expression representing |
2352 | | /// that. |
2353 | | /// |
2354 | | /// \param Loc Location of the keyword. |
2355 | | QualType Sema::BuildBitIntType(bool IsUnsigned, Expr *BitWidth, |
2356 | 1.54k | SourceLocation Loc) { |
2357 | 1.54k | if (BitWidth->isInstantiationDependent()) |
2358 | 25 | return Context.getDependentBitIntType(IsUnsigned, BitWidth); |
2359 | | |
2360 | 1.52k | llvm::APSInt Bits(32); |
2361 | 1.52k | ExprResult ICE = |
2362 | 1.52k | VerifyIntegerConstantExpression(BitWidth, &Bits, /*FIXME*/ AllowFold); |
2363 | | |
2364 | 1.52k | if (ICE.isInvalid()) |
2365 | 2 | return QualType(); |
2366 | | |
2367 | 1.51k | size_t NumBits = Bits.getZExtValue(); |
2368 | 1.51k | if (!IsUnsigned && NumBits < 21.24k ) { |
2369 | 5 | Diag(Loc, diag::err_bit_int_bad_size) << 0; |
2370 | 5 | return QualType(); |
2371 | 5 | } |
2372 | | |
2373 | 1.51k | if (IsUnsigned && NumBits < 1275 ) { |
2374 | 2 | Diag(Loc, diag::err_bit_int_bad_size) << 1; |
2375 | 2 | return QualType(); |
2376 | 2 | } |
2377 | | |
2378 | 1.51k | const TargetInfo &TI = getASTContext().getTargetInfo(); |
2379 | 1.51k | if (NumBits > TI.getMaxBitIntWidth()) { |
2380 | 7 | Diag(Loc, diag::err_bit_int_max_size) |
2381 | 7 | << IsUnsigned << static_cast<uint64_t>(TI.getMaxBitIntWidth()); |
2382 | 7 | return QualType(); |
2383 | 7 | } |
2384 | | |
2385 | 1.50k | return Context.getBitIntType(IsUnsigned, NumBits); |
2386 | 1.51k | } |
2387 | | |
2388 | | /// Check whether the specified array bound can be evaluated using the relevant |
2389 | | /// language rules. If so, returns the possibly-converted expression and sets |
2390 | | /// SizeVal to the size. If not, but the expression might be a VLA bound, |
2391 | | /// returns ExprResult(). Otherwise, produces a diagnostic and returns |
2392 | | /// ExprError(). |
2393 | | static ExprResult checkArraySize(Sema &S, Expr *&ArraySize, |
2394 | | llvm::APSInt &SizeVal, unsigned VLADiag, |
2395 | 294k | bool VLAIsError) { |
2396 | 294k | if (S.getLangOpts().CPlusPlus14 && |
2397 | 294k | (35.6k VLAIsError35.6k || |
2398 | 35.6k | !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()34.7k )) { |
2399 | | // C++14 [dcl.array]p1: |
2400 | | // The constant-expression shall be a converted constant expression of |
2401 | | // type std::size_t. |
2402 | | // |
2403 | | // Don't apply this rule if we might be forming a VLA: in that case, we |
2404 | | // allow non-constant expressions and constant-folding. We only need to use |
2405 | | // the converted constant expression rules (to properly convert the source) |
2406 | | // when the source expression is of class type. |
2407 | 897 | return S.CheckConvertedConstantExpression( |
2408 | 897 | ArraySize, S.Context.getSizeType(), SizeVal, Sema::CCEK_ArrayBound); |
2409 | 897 | } |
2410 | | |
2411 | | // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode |
2412 | | // (like gnu99, but not c99) accept any evaluatable value as an extension. |
2413 | 293k | class VLADiagnoser : public Sema::VerifyICEDiagnoser { |
2414 | 293k | public: |
2415 | 293k | unsigned VLADiag; |
2416 | 293k | bool VLAIsError; |
2417 | 293k | bool IsVLA = false; |
2418 | | |
2419 | 293k | VLADiagnoser(unsigned VLADiag, bool VLAIsError) |
2420 | 293k | : VLADiag(VLADiag), VLAIsError(VLAIsError) {} |
2421 | | |
2422 | 293k | Sema::SemaDiagnosticBuilder diagnoseNotICEType(Sema &S, SourceLocation Loc, |
2423 | 293k | QualType T) override { |
2424 | 1 | return S.Diag(Loc, diag::err_array_size_non_int) << T; |
2425 | 1 | } |
2426 | | |
2427 | 293k | Sema::SemaDiagnosticBuilder diagnoseNotICE(Sema &S, |
2428 | 293k | SourceLocation Loc) override { |
2429 | 3.97k | IsVLA = !VLAIsError; |
2430 | 3.97k | return S.Diag(Loc, VLADiag); |
2431 | 3.97k | } |
2432 | | |
2433 | 293k | Sema::SemaDiagnosticBuilder diagnoseFold(Sema &S, |
2434 | 293k | SourceLocation Loc) override { |
2435 | 0 | return S.Diag(Loc, diag::ext_vla_folded_to_constant); |
2436 | 0 | } |
2437 | 293k | } Diagnoser(VLADiag, VLAIsError); |
2438 | | |
2439 | 293k | ExprResult R = |
2440 | 293k | S.VerifyIntegerConstantExpression(ArraySize, &SizeVal, Diagnoser); |
2441 | 293k | if (Diagnoser.IsVLA) |
2442 | 3.96k | return ExprResult(); |
2443 | 289k | return R; |
2444 | 293k | } |
2445 | | |
2446 | 375k | bool Sema::checkArrayElementAlignment(QualType EltTy, SourceLocation Loc) { |
2447 | 375k | EltTy = Context.getBaseElementType(EltTy); |
2448 | 375k | if (EltTy->isIncompleteType() || EltTy->isDependentType()374k || |
2449 | 375k | EltTy->isUndeducedType()336k ) |
2450 | 38.4k | return true; |
2451 | | |
2452 | 336k | CharUnits Size = Context.getTypeSizeInChars(EltTy); |
2453 | 336k | CharUnits Alignment = Context.getTypeAlignInChars(EltTy); |
2454 | | |
2455 | 336k | if (Size.isMultipleOf(Alignment)) |
2456 | 336k | return true; |
2457 | | |
2458 | 21 | Diag(Loc, diag::err_array_element_alignment) |
2459 | 21 | << EltTy << Size.getQuantity() << Alignment.getQuantity(); |
2460 | 21 | return false; |
2461 | 336k | } |
2462 | | |
2463 | | /// Build an array type. |
2464 | | /// |
2465 | | /// \param T The type of each element in the array. |
2466 | | /// |
2467 | | /// \param ASM C99 array size modifier (e.g., '*', 'static'). |
2468 | | /// |
2469 | | /// \param ArraySize Expression describing the size of the array. |
2470 | | /// |
2471 | | /// \param Brackets The range from the opening '[' to the closing ']'. |
2472 | | /// |
2473 | | /// \param Entity The name of the entity that involves the array |
2474 | | /// type, if known. |
2475 | | /// |
2476 | | /// \returns A suitable array type, if there are no errors. Otherwise, |
2477 | | /// returns a NULL type. |
2478 | | QualType Sema::BuildArrayType(QualType T, ArraySizeModifier ASM, |
2479 | | Expr *ArraySize, unsigned Quals, |
2480 | 373k | SourceRange Brackets, DeclarationName Entity) { |
2481 | | |
2482 | 373k | SourceLocation Loc = Brackets.getBegin(); |
2483 | 373k | if (getLangOpts().CPlusPlus) { |
2484 | | // C++ [dcl.array]p1: |
2485 | | // T is called the array element type; this type shall not be a reference |
2486 | | // type, the (possibly cv-qualified) type void, a function type or an |
2487 | | // abstract class type. |
2488 | | // |
2489 | | // C++ [dcl.array]p3: |
2490 | | // When several "array of" specifications are adjacent, [...] only the |
2491 | | // first of the constant expressions that specify the bounds of the arrays |
2492 | | // may be omitted. |
2493 | | // |
2494 | | // Note: function types are handled in the common path with C. |
2495 | 194k | if (T->isReferenceType()) { |
2496 | 9 | Diag(Loc, diag::err_illegal_decl_array_of_references) |
2497 | 9 | << getPrintableNameForEntity(Entity) << T; |
2498 | 9 | return QualType(); |
2499 | 9 | } |
2500 | | |
2501 | 194k | if (T->isVoidType() || T->isIncompleteArrayType()194k ) { |
2502 | 2 | Diag(Loc, diag::err_array_incomplete_or_sizeless_type) << 0 << T; |
2503 | 2 | return QualType(); |
2504 | 2 | } |
2505 | | |
2506 | 194k | if (RequireNonAbstractType(Brackets.getBegin(), T, |
2507 | 194k | diag::err_array_of_abstract_type)) |
2508 | 22 | return QualType(); |
2509 | | |
2510 | | // Mentioning a member pointer type for an array type causes us to lock in |
2511 | | // an inheritance model, even if it's inside an unused typedef. |
2512 | 194k | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) |
2513 | 943 | if (const MemberPointerType *MPTy = T->getAs<MemberPointerType>()) |
2514 | 0 | if (!MPTy->getClass()->isDependentType()) |
2515 | 0 | (void)isCompleteType(Loc, T); |
2516 | | |
2517 | 194k | } else { |
2518 | | // C99 6.7.5.2p1: If the element type is an incomplete or function type, |
2519 | | // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) |
2520 | 178k | if (!T.isWebAssemblyReferenceType() && |
2521 | 178k | RequireCompleteSizedType(Loc, T, |
2522 | 178k | diag::err_array_incomplete_or_sizeless_type)) |
2523 | 74 | return QualType(); |
2524 | 178k | } |
2525 | | |
2526 | | // Multi-dimensional arrays of WebAssembly references are not allowed. |
2527 | 372k | if (Context.getTargetInfo().getTriple().isWasm() && T->isArrayType()99 ) { |
2528 | 14 | const auto *ATy = dyn_cast<ArrayType>(T); |
2529 | 14 | if (ATy && ATy->getElementType().isWebAssemblyReferenceType()) { |
2530 | 14 | Diag(Loc, diag::err_wasm_reftype_multidimensional_array); |
2531 | 14 | return QualType(); |
2532 | 14 | } |
2533 | 14 | } |
2534 | | |
2535 | 372k | if (T->isSizelessType() && !T.isWebAssemblyReferenceType()95 ) { |
2536 | 19 | Diag(Loc, diag::err_array_incomplete_or_sizeless_type) << 1 << T; |
2537 | 19 | return QualType(); |
2538 | 19 | } |
2539 | | |
2540 | 372k | if (T->isFunctionType()) { |
2541 | 14 | Diag(Loc, diag::err_illegal_decl_array_of_functions) |
2542 | 14 | << getPrintableNameForEntity(Entity) << T; |
2543 | 14 | return QualType(); |
2544 | 14 | } |
2545 | | |
2546 | 372k | if (const RecordType *EltTy = T->getAs<RecordType>()) { |
2547 | | // If the element type is a struct or union that contains a variadic |
2548 | | // array, accept it as a GNU extension: C99 6.7.2.1p2. |
2549 | 34.8k | if (EltTy->getDecl()->hasFlexibleArrayMember()) |
2550 | 7 | Diag(Loc, diag::ext_flexible_array_in_array) << T; |
2551 | 338k | } else if (T->isObjCObjectType()) { |
2552 | 1 | Diag(Loc, diag::err_objc_array_of_interfaces) << T; |
2553 | 1 | return QualType(); |
2554 | 1 | } |
2555 | | |
2556 | 372k | if (!checkArrayElementAlignment(T, Loc)) |
2557 | 19 | return QualType(); |
2558 | | |
2559 | | // Do placeholder conversions on the array size expression. |
2560 | 372k | if (ArraySize && ArraySize->hasPlaceholderType()317k ) { |
2561 | 2 | ExprResult Result = CheckPlaceholderExpr(ArraySize); |
2562 | 2 | if (Result.isInvalid()) return QualType()0 ; |
2563 | 2 | ArraySize = Result.get(); |
2564 | 2 | } |
2565 | | |
2566 | | // Do lvalue-to-rvalue conversions on the array size expression. |
2567 | 372k | if (ArraySize && !ArraySize->isPRValue()317k ) { |
2568 | 13.7k | ExprResult Result = DefaultLvalueConversion(ArraySize); |
2569 | 13.7k | if (Result.isInvalid()) |
2570 | 0 | return QualType(); |
2571 | | |
2572 | 13.7k | ArraySize = Result.get(); |
2573 | 13.7k | } |
2574 | | |
2575 | | // C99 6.7.5.2p1: The size expression shall have integer type. |
2576 | | // C++11 allows contextual conversions to such types. |
2577 | 372k | if (!getLangOpts().CPlusPlus11 && |
2578 | 372k | ArraySize183k && !ArraySize->isTypeDependent()156k && |
2579 | 372k | !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()156k ) { |
2580 | 5 | Diag(ArraySize->getBeginLoc(), diag::err_array_size_non_int) |
2581 | 5 | << ArraySize->getType() << ArraySize->getSourceRange(); |
2582 | 5 | return QualType(); |
2583 | 5 | } |
2584 | | |
2585 | 372k | auto IsStaticAssertLike = [](const Expr *ArraySize, ASTContext &Context) { |
2586 | 188k | if (!ArraySize) |
2587 | 28.7k | return false; |
2588 | | |
2589 | | // If the array size expression is a conditional expression whose branches |
2590 | | // are both integer constant expressions, one negative and one positive, |
2591 | | // then it's assumed to be like an old-style static assertion. e.g., |
2592 | | // int old_style_assert[expr ? 1 : -1]; |
2593 | | // We will accept any integer constant expressions instead of assuming the |
2594 | | // values 1 and -1 are always used. |
2595 | 159k | if (const auto *CondExpr = dyn_cast_if_present<ConditionalOperator>( |
2596 | 159k | ArraySize->IgnoreParenImpCasts())) { |
2597 | 8.40k | std::optional<llvm::APSInt> LHS = |
2598 | 8.40k | CondExpr->getLHS()->getIntegerConstantExpr(Context); |
2599 | 8.40k | std::optional<llvm::APSInt> RHS = |
2600 | 8.40k | CondExpr->getRHS()->getIntegerConstantExpr(Context); |
2601 | 8.40k | return LHS && RHS8.38k && LHS->isNegative() != RHS->isNegative()8.36k ; |
2602 | 8.40k | } |
2603 | 150k | return false; |
2604 | 159k | }; |
2605 | | |
2606 | | // VLAs always produce at least a -Wvla diagnostic, sometimes an error. |
2607 | 372k | unsigned VLADiag; |
2608 | 372k | bool VLAIsError; |
2609 | 372k | if (getLangOpts().OpenCL) { |
2610 | | // OpenCL v1.2 s6.9.d: variable length arrays are not supported. |
2611 | 698 | VLADiag = diag::err_opencl_vla; |
2612 | 698 | VLAIsError = true; |
2613 | 372k | } else if (getLangOpts().C99) { |
2614 | 177k | VLADiag = diag::warn_vla_used; |
2615 | 177k | VLAIsError = false; |
2616 | 195k | } else if (isSFINAEContext()) { |
2617 | 1.32k | VLADiag = diag::err_vla_in_sfinae; |
2618 | 1.32k | VLAIsError = true; |
2619 | 193k | } else if (getLangOpts().OpenMP && isInOpenMPTaskUntiedContext()36.1k ) { |
2620 | 10 | VLADiag = diag::err_openmp_vla_in_task_untied; |
2621 | 10 | VLAIsError = true; |
2622 | 193k | } else if (getLangOpts().CPlusPlus) { |
2623 | 193k | if (getLangOpts().CPlusPlus11 && IsStaticAssertLike(ArraySize, Context)188k ) |
2624 | 7.71k | VLADiag = getLangOpts().GNUMode |
2625 | 7.71k | ? diag::ext_vla_cxx_in_gnu_mode_static_assert6.09k |
2626 | 7.71k | : diag::ext_vla_cxx_static_assert1.61k ; |
2627 | 185k | else |
2628 | 185k | VLADiag = getLangOpts().GNUMode ? diag::ext_vla_cxx_in_gnu_mode32.1k |
2629 | 185k | : diag::ext_vla_cxx153k ; |
2630 | 193k | VLAIsError = false; |
2631 | 193k | } else { |
2632 | 425 | VLADiag = diag::ext_vla; |
2633 | 425 | VLAIsError = false; |
2634 | 425 | } |
2635 | | |
2636 | 372k | llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); |
2637 | 372k | if (!ArraySize) { |
2638 | 55.6k | if (ASM == ArraySizeModifier::Star) { |
2639 | 34 | Diag(Loc, VLADiag); |
2640 | 34 | if (VLAIsError) |
2641 | 0 | return QualType(); |
2642 | | |
2643 | 34 | T = Context.getVariableArrayType(T, nullptr, ASM, Quals, Brackets); |
2644 | 55.5k | } else { |
2645 | 55.5k | T = Context.getIncompleteArrayType(T, ASM, Quals); |
2646 | 55.5k | } |
2647 | 317k | } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()316k ) { |
2648 | 22.6k | T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); |
2649 | 294k | } else { |
2650 | 294k | ExprResult R = |
2651 | 294k | checkArraySize(*this, ArraySize, ConstVal, VLADiag, VLAIsError); |
2652 | 294k | if (R.isInvalid()) |
2653 | 25 | return QualType(); |
2654 | | |
2655 | 294k | if (!R.isUsable()) { |
2656 | | // C99: an array with a non-ICE size is a VLA. We accept any expression |
2657 | | // that we can fold to a non-zero positive value as a non-VLA as an |
2658 | | // extension. |
2659 | 3.96k | T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); |
2660 | 290k | } else if (!T->isDependentType() && !T->isIncompleteType()279k && |
2661 | 290k | !T->isConstantSizeType()279k ) { |
2662 | | // C99: an array with an element type that has a non-constant-size is a |
2663 | | // VLA. |
2664 | | // FIXME: Add a note to explain why this isn't a VLA. |
2665 | 1.21k | Diag(Loc, VLADiag); |
2666 | 1.21k | if (VLAIsError) |
2667 | 0 | return QualType(); |
2668 | 1.21k | T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); |
2669 | 289k | } else { |
2670 | | // C99 6.7.5.2p1: If the expression is a constant expression, it shall |
2671 | | // have a value greater than zero. |
2672 | | // In C++, this follows from narrowing conversions being disallowed. |
2673 | 289k | if (ConstVal.isSigned() && ConstVal.isNegative()277k ) { |
2674 | 156 | if (Entity) |
2675 | 54 | Diag(ArraySize->getBeginLoc(), diag::err_decl_negative_array_size) |
2676 | 54 | << getPrintableNameForEntity(Entity) |
2677 | 54 | << ArraySize->getSourceRange(); |
2678 | 102 | else |
2679 | 102 | Diag(ArraySize->getBeginLoc(), |
2680 | 102 | diag::err_typecheck_negative_array_size) |
2681 | 102 | << ArraySize->getSourceRange(); |
2682 | 156 | return QualType(); |
2683 | 156 | } |
2684 | 289k | if (ConstVal == 0 && !T.isWebAssemblyReferenceType()3.24k ) { |
2685 | | // GCC accepts zero sized static arrays. We allow them when |
2686 | | // we're not in a SFINAE context. |
2687 | 3.18k | Diag(ArraySize->getBeginLoc(), |
2688 | 3.18k | isSFINAEContext() ? diag::err_typecheck_zero_array_size3 |
2689 | 3.18k | : diag::ext_typecheck_zero_array_size3.18k ) |
2690 | 3.18k | << 0 << ArraySize->getSourceRange(); |
2691 | 3.18k | } |
2692 | | |
2693 | | // Is the array too large? |
2694 | 289k | unsigned ActiveSizeBits = |
2695 | 289k | (!T->isDependentType() && !T->isVariablyModifiedType()277k && |
2696 | 289k | !T->isIncompleteType()277k && !T->isUndeducedType()277k ) |
2697 | 289k | ? ConstantArrayType::getNumAddressingBits(Context, T, ConstVal)277k |
2698 | 289k | : ConstVal.getActiveBits()11.5k ; |
2699 | 289k | if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) { |
2700 | 23 | Diag(ArraySize->getBeginLoc(), diag::err_array_too_large) |
2701 | 23 | << toString(ConstVal, 10) << ArraySize->getSourceRange(); |
2702 | 23 | return QualType(); |
2703 | 23 | } |
2704 | | |
2705 | 289k | T = Context.getConstantArrayType(T, ConstVal, ArraySize, ASM, Quals); |
2706 | 289k | } |
2707 | 294k | } |
2708 | | |
2709 | 372k | if (T->isVariableArrayType()) { |
2710 | 5.20k | if (!Context.getTargetInfo().isVLASupported()) { |
2711 | | // CUDA device code and some other targets don't support VLAs. |
2712 | 30 | bool IsCUDADevice = (getLangOpts().CUDA && getLangOpts().CUDAIsDevice6 ); |
2713 | 30 | targetDiag(Loc, |
2714 | 30 | IsCUDADevice ? diag::err_cuda_vla6 : diag::err_vla_unsupported24 ) |
2715 | 30 | << (IsCUDADevice ? CurrentCUDATarget()6 : 024 ); |
2716 | 5.17k | } else if (sema::FunctionScopeInfo *FSI = getCurFunction()) { |
2717 | | // VLAs are supported on this target, but we may need to do delayed |
2718 | | // checking that the VLA is not being used within a coroutine. |
2719 | 4.57k | FSI->setHasVLA(Loc); |
2720 | 4.57k | } |
2721 | 5.20k | } |
2722 | | |
2723 | | // If this is not C99, diagnose array size modifiers on non-VLAs. |
2724 | 372k | if (!getLangOpts().C99 && !T->isVariableArrayType()195k && |
2725 | 372k | (190k ASM != ArraySizeModifier::Normal190k || Quals != 0190k )) { |
2726 | 6 | Diag(Loc, getLangOpts().CPlusPlus ? diag::err_c99_array_usage_cxx3 |
2727 | 6 | : diag::ext_c99_array_usage3 ) |
2728 | 6 | << llvm::to_underlying(ASM); |
2729 | 6 | } |
2730 | | |
2731 | | // OpenCL v2.0 s6.12.5 - Arrays of blocks are not supported. |
2732 | | // OpenCL v2.0 s6.16.13.1 - Arrays of pipe type are not supported. |
2733 | | // OpenCL v2.0 s6.9.b - Arrays of image/sampler type are not supported. |
2734 | 372k | if (getLangOpts().OpenCL) { |
2735 | 691 | const QualType ArrType = Context.getBaseElementType(T); |
2736 | 691 | if (ArrType->isBlockPointerType() || ArrType->isPipeType()689 || |
2737 | 691 | ArrType->isSamplerT()689 || ArrType->isImageType()683 ) { |
2738 | 12 | Diag(Loc, diag::err_opencl_invalid_type_array) << ArrType; |
2739 | 12 | return QualType(); |
2740 | 12 | } |
2741 | 691 | } |
2742 | | |
2743 | 372k | return T; |
2744 | 372k | } |
2745 | | |
2746 | | QualType Sema::BuildVectorType(QualType CurType, Expr *SizeExpr, |
2747 | 36.1k | SourceLocation AttrLoc) { |
2748 | | // The base type must be integer (not Boolean or enumeration) or float, and |
2749 | | // can't already be a vector. |
2750 | 36.1k | if ((!CurType->isDependentType() && |
2751 | 36.1k | (36.0k !CurType->isBuiltinType()36.0k || CurType->isBooleanType()36.0k || |
2752 | 36.0k | (35.9k !CurType->isIntegerType()35.9k && !CurType->isRealFloatingType()16.2k )) && |
2753 | 36.1k | !CurType->isBitIntType()74 ) || |
2754 | 36.1k | CurType->isArrayType()36.0k ) { |
2755 | 43 | Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << CurType; |
2756 | 43 | return QualType(); |
2757 | 43 | } |
2758 | | // Only support _BitInt elements with byte-sized power of 2 NumBits. |
2759 | 36.0k | if (const auto *BIT = CurType->getAs<BitIntType>()) { |
2760 | 32 | unsigned NumBits = BIT->getNumBits(); |
2761 | 32 | if (!llvm::isPowerOf2_32(NumBits) || NumBits < 830 ) { |
2762 | 4 | Diag(AttrLoc, diag::err_attribute_invalid_bitint_vector_type) |
2763 | 4 | << (NumBits < 8); |
2764 | 4 | return QualType(); |
2765 | 4 | } |
2766 | 32 | } |
2767 | | |
2768 | 36.0k | if (SizeExpr->isTypeDependent() || SizeExpr->isValueDependent()) |
2769 | 40 | return Context.getDependentVectorType(CurType, SizeExpr, AttrLoc, |
2770 | 40 | VectorKind::Generic); |
2771 | | |
2772 | 36.0k | std::optional<llvm::APSInt> VecSize = |
2773 | 36.0k | SizeExpr->getIntegerConstantExpr(Context); |
2774 | 36.0k | if (!VecSize) { |
2775 | 0 | Diag(AttrLoc, diag::err_attribute_argument_type) |
2776 | 0 | << "vector_size" << AANT_ArgumentIntegerConstant |
2777 | 0 | << SizeExpr->getSourceRange(); |
2778 | 0 | return QualType(); |
2779 | 0 | } |
2780 | | |
2781 | 36.0k | if (CurType->isDependentType()) |
2782 | 22 | return Context.getDependentVectorType(CurType, SizeExpr, AttrLoc, |
2783 | 22 | VectorKind::Generic); |
2784 | | |
2785 | | // vecSize is specified in bytes - convert to bits. |
2786 | 36.0k | if (!VecSize->isIntN(61)) { |
2787 | | // Bit size will overflow uint64. |
2788 | 12 | Diag(AttrLoc, diag::err_attribute_size_too_large) |
2789 | 12 | << SizeExpr->getSourceRange() << "vector"; |
2790 | 12 | return QualType(); |
2791 | 12 | } |
2792 | 36.0k | uint64_t VectorSizeBits = VecSize->getZExtValue() * 8; |
2793 | 36.0k | unsigned TypeSize = static_cast<unsigned>(Context.getTypeSize(CurType)); |
2794 | | |
2795 | 36.0k | if (VectorSizeBits == 0) { |
2796 | 12 | Diag(AttrLoc, diag::err_attribute_zero_size) |
2797 | 12 | << SizeExpr->getSourceRange() << "vector"; |
2798 | 12 | return QualType(); |
2799 | 12 | } |
2800 | | |
2801 | 35.9k | if (!TypeSize || VectorSizeBits % TypeSize35.9k ) { |
2802 | 13 | Diag(AttrLoc, diag::err_attribute_invalid_size) |
2803 | 13 | << SizeExpr->getSourceRange(); |
2804 | 13 | return QualType(); |
2805 | 13 | } |
2806 | | |
2807 | 35.9k | if (VectorSizeBits / TypeSize > std::numeric_limits<uint32_t>::max()) { |
2808 | 24 | Diag(AttrLoc, diag::err_attribute_size_too_large) |
2809 | 24 | << SizeExpr->getSourceRange() << "vector"; |
2810 | 24 | return QualType(); |
2811 | 24 | } |
2812 | | |
2813 | 35.9k | return Context.getVectorType(CurType, VectorSizeBits / TypeSize, |
2814 | 35.9k | VectorKind::Generic); |
2815 | 35.9k | } |
2816 | | |
2817 | | /// Build an ext-vector type. |
2818 | | /// |
2819 | | /// Run the required checks for the extended vector type. |
2820 | | QualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, |
2821 | 6.74k | SourceLocation AttrLoc) { |
2822 | | // Unlike gcc's vector_size attribute, we do not allow vectors to be defined |
2823 | | // in conjunction with complex types (pointers, arrays, functions, etc.). |
2824 | | // |
2825 | | // Additionally, OpenCL prohibits vectors of booleans (they're considered a |
2826 | | // reserved data type under OpenCL v2.0 s6.1.4), we don't support selects |
2827 | | // on bitvectors, and we have no well-defined ABI for bitvectors, so vectors |
2828 | | // of bool aren't allowed. |
2829 | | // |
2830 | | // We explictly allow bool elements in ext_vector_type for C/C++. |
2831 | 6.74k | bool IsNoBoolVecLang = getLangOpts().OpenCL || getLangOpts().OpenCLCPlusPlus2.12k ; |
2832 | 6.74k | if ((!T->isDependentType() && !T->isIntegerType()6.70k && |
2833 | 6.74k | !T->isRealFloatingType()2.08k ) || |
2834 | 6.74k | (6.73k IsNoBoolVecLang6.73k && T->isBooleanType()4.61k )) { |
2835 | 16 | Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; |
2836 | 16 | return QualType(); |
2837 | 16 | } |
2838 | | |
2839 | | // Only support _BitInt elements with byte-sized power of 2 NumBits. |
2840 | 6.72k | if (T->isBitIntType()) { |
2841 | 32 | unsigned NumBits = T->castAs<BitIntType>()->getNumBits(); |
2842 | 32 | if (!llvm::isPowerOf2_32(NumBits) || NumBits < 830 ) { |
2843 | 4 | Diag(AttrLoc, diag::err_attribute_invalid_bitint_vector_type) |
2844 | 4 | << (NumBits < 8); |
2845 | 4 | return QualType(); |
2846 | 4 | } |
2847 | 32 | } |
2848 | | |
2849 | 6.72k | if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()6.72k ) { |
2850 | 6.68k | std::optional<llvm::APSInt> vecSize = |
2851 | 6.68k | ArraySize->getIntegerConstantExpr(Context); |
2852 | 6.68k | if (!vecSize) { |
2853 | 0 | Diag(AttrLoc, diag::err_attribute_argument_type) |
2854 | 0 | << "ext_vector_type" << AANT_ArgumentIntegerConstant |
2855 | 0 | << ArraySize->getSourceRange(); |
2856 | 0 | return QualType(); |
2857 | 0 | } |
2858 | | |
2859 | 6.68k | if (!vecSize->isIntN(32)) { |
2860 | 6 | Diag(AttrLoc, diag::err_attribute_size_too_large) |
2861 | 6 | << ArraySize->getSourceRange() << "vector"; |
2862 | 6 | return QualType(); |
2863 | 6 | } |
2864 | | // Unlike gcc's vector_size attribute, the size is specified as the |
2865 | | // number of elements, not the number of bytes. |
2866 | 6.67k | unsigned vectorSize = static_cast<unsigned>(vecSize->getZExtValue()); |
2867 | | |
2868 | 6.67k | if (vectorSize == 0) { |
2869 | 9 | Diag(AttrLoc, diag::err_attribute_zero_size) |
2870 | 9 | << ArraySize->getSourceRange() << "vector"; |
2871 | 9 | return QualType(); |
2872 | 9 | } |
2873 | | |
2874 | 6.66k | return Context.getExtVectorType(T, vectorSize); |
2875 | 6.67k | } |
2876 | | |
2877 | 42 | return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); |
2878 | 6.72k | } |
2879 | | |
2880 | | QualType Sema::BuildMatrixType(QualType ElementTy, Expr *NumRows, Expr *NumCols, |
2881 | 450 | SourceLocation AttrLoc) { |
2882 | 450 | assert(Context.getLangOpts().MatrixTypes && |
2883 | 450 | "Should never build a matrix type when it is disabled"); |
2884 | | |
2885 | | // Check element type, if it is not dependent. |
2886 | 450 | if (!ElementTy->isDependentType() && |
2887 | 450 | !MatrixType::isValidElementType(ElementTy)406 ) { |
2888 | 6 | Diag(AttrLoc, diag::err_attribute_invalid_matrix_type) << ElementTy; |
2889 | 6 | return QualType(); |
2890 | 6 | } |
2891 | | |
2892 | 444 | if (NumRows->isTypeDependent() || NumCols->isTypeDependent()443 || |
2893 | 444 | NumRows->isValueDependent()443 || NumCols->isValueDependent()389 ) |
2894 | 81 | return Context.getDependentSizedMatrixType(ElementTy, NumRows, NumCols, |
2895 | 81 | AttrLoc); |
2896 | | |
2897 | 363 | std::optional<llvm::APSInt> ValueRows = |
2898 | 363 | NumRows->getIntegerConstantExpr(Context); |
2899 | 363 | std::optional<llvm::APSInt> ValueColumns = |
2900 | 363 | NumCols->getIntegerConstantExpr(Context); |
2901 | | |
2902 | 363 | auto const RowRange = NumRows->getSourceRange(); |
2903 | 363 | auto const ColRange = NumCols->getSourceRange(); |
2904 | | |
2905 | | // Both are row and column expressions are invalid. |
2906 | 363 | if (!ValueRows && !ValueColumns2 ) { |
2907 | 1 | Diag(AttrLoc, diag::err_attribute_argument_type) |
2908 | 1 | << "matrix_type" << AANT_ArgumentIntegerConstant << RowRange |
2909 | 1 | << ColRange; |
2910 | 1 | return QualType(); |
2911 | 1 | } |
2912 | | |
2913 | | // Only the row expression is invalid. |
2914 | 362 | if (!ValueRows) { |
2915 | 1 | Diag(AttrLoc, diag::err_attribute_argument_type) |
2916 | 1 | << "matrix_type" << AANT_ArgumentIntegerConstant << RowRange; |
2917 | 1 | return QualType(); |
2918 | 1 | } |
2919 | | |
2920 | | // Only the column expression is invalid. |
2921 | 361 | if (!ValueColumns) { |
2922 | 1 | Diag(AttrLoc, diag::err_attribute_argument_type) |
2923 | 1 | << "matrix_type" << AANT_ArgumentIntegerConstant << ColRange; |
2924 | 1 | return QualType(); |
2925 | 1 | } |
2926 | | |
2927 | | // Check the matrix dimensions. |
2928 | 360 | unsigned MatrixRows = static_cast<unsigned>(ValueRows->getZExtValue()); |
2929 | 360 | unsigned MatrixColumns = static_cast<unsigned>(ValueColumns->getZExtValue()); |
2930 | 360 | if (MatrixRows == 0 && MatrixColumns == 03 ) { |
2931 | 0 | Diag(AttrLoc, diag::err_attribute_zero_size) |
2932 | 0 | << "matrix" << RowRange << ColRange; |
2933 | 0 | return QualType(); |
2934 | 0 | } |
2935 | 360 | if (MatrixRows == 0) { |
2936 | 3 | Diag(AttrLoc, diag::err_attribute_zero_size) << "matrix" << RowRange; |
2937 | 3 | return QualType(); |
2938 | 3 | } |
2939 | 357 | if (MatrixColumns == 0) { |
2940 | 1 | Diag(AttrLoc, diag::err_attribute_zero_size) << "matrix" << ColRange; |
2941 | 1 | return QualType(); |
2942 | 1 | } |
2943 | 356 | if (!ConstantMatrixType::isDimensionValid(MatrixRows)) { |
2944 | 3 | Diag(AttrLoc, diag::err_attribute_size_too_large) |
2945 | 3 | << RowRange << "matrix row"; |
2946 | 3 | return QualType(); |
2947 | 3 | } |
2948 | 353 | if (!ConstantMatrixType::isDimensionValid(MatrixColumns)) { |
2949 | 1 | Diag(AttrLoc, diag::err_attribute_size_too_large) |
2950 | 1 | << ColRange << "matrix column"; |
2951 | 1 | return QualType(); |
2952 | 1 | } |
2953 | 352 | return Context.getConstantMatrixType(ElementTy, MatrixRows, MatrixColumns); |
2954 | 353 | } |
2955 | | |
2956 | 2.05M | bool Sema::CheckFunctionReturnType(QualType T, SourceLocation Loc) { |
2957 | 2.05M | if (T->isArrayType() || T->isFunctionType()2.05M ) { |
2958 | 26 | Diag(Loc, diag::err_func_returning_array_function) |
2959 | 26 | << T->isFunctionType() << T; |
2960 | 26 | return true; |
2961 | 26 | } |
2962 | | |
2963 | | // Functions cannot return half FP. |
2964 | 2.05M | if (T->isHalfType() && !getLangOpts().NativeHalfArgsAndReturns0 && |
2965 | 2.05M | !Context.getTargetInfo().allowHalfArgsAndReturns()0 ) { |
2966 | 0 | Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << |
2967 | 0 | FixItHint::CreateInsertion(Loc, "*"); |
2968 | 0 | return true; |
2969 | 0 | } |
2970 | | |
2971 | | // Methods cannot return interface types. All ObjC objects are |
2972 | | // passed by reference. |
2973 | 2.05M | if (T->isObjCObjectType()) { |
2974 | 3 | Diag(Loc, diag::err_object_cannot_be_passed_returned_by_value) |
2975 | 3 | << 0 << T << FixItHint::CreateInsertion(Loc, "*"); |
2976 | 3 | return true; |
2977 | 3 | } |
2978 | | |
2979 | 2.05M | if (T.hasNonTrivialToPrimitiveDestructCUnion() || |
2980 | 2.05M | T.hasNonTrivialToPrimitiveCopyCUnion()2.05M ) |
2981 | 2 | checkNonTrivialCUnion(T, Loc, NTCUC_FunctionReturn, |
2982 | 2 | NTCUK_Destruct|NTCUK_Copy); |
2983 | | |
2984 | | // C++2a [dcl.fct]p12: |
2985 | | // A volatile-qualified return type is deprecated |
2986 | 2.05M | if (T.isVolatileQualified() && getLangOpts().CPlusPlus2040 ) |
2987 | 10 | Diag(Loc, diag::warn_deprecated_volatile_return) << T; |
2988 | | |
2989 | 2.05M | if (T.getAddressSpace() != LangAS::Default && getLangOpts().HLSL3 ) |
2990 | 1 | return true; |
2991 | 2.05M | return false; |
2992 | 2.05M | } |
2993 | | |
2994 | | /// Check the extended parameter information. Most of the necessary |
2995 | | /// checking should occur when applying the parameter attribute; the |
2996 | | /// only other checks required are positional restrictions. |
2997 | | static void checkExtParameterInfos(Sema &S, ArrayRef<QualType> paramTypes, |
2998 | | const FunctionProtoType::ExtProtoInfo &EPI, |
2999 | 8.95k | llvm::function_ref<SourceLocation(unsigned)> getParamLoc) { |
3000 | 8.95k | assert(EPI.ExtParameterInfos && "shouldn't get here without param infos"); |
3001 | | |
3002 | 8.95k | bool emittedError = false; |
3003 | 8.95k | auto actualCC = EPI.ExtInfo.getCC(); |
3004 | 8.95k | enum class RequiredCC { OnlySwift, SwiftOrSwiftAsync }; |
3005 | 8.95k | auto checkCompatible = [&](unsigned paramIndex, RequiredCC required) { |
3006 | 181 | bool isCompatible = |
3007 | 181 | (required == RequiredCC::OnlySwift) |
3008 | 181 | ? (actualCC == CC_Swift)34 |
3009 | 181 | : (147 actualCC == CC_Swift147 || actualCC == CC_SwiftAsync21 ); |
3010 | 181 | if (isCompatible || emittedError9 ) |
3011 | 172 | return; |
3012 | 9 | S.Diag(getParamLoc(paramIndex), diag::err_swift_param_attr_not_swiftcall) |
3013 | 9 | << getParameterABISpelling(EPI.ExtParameterInfos[paramIndex].getABI()) |
3014 | 9 | << (required == RequiredCC::OnlySwift); |
3015 | 9 | emittedError = true; |
3016 | 9 | }; |
3017 | 8.95k | for (size_t paramIndex = 0, numParams = paramTypes.size(); |
3018 | 36.2k | paramIndex != numParams; ++paramIndex27.2k ) { |
3019 | 27.2k | switch (EPI.ExtParameterInfos[paramIndex].getABI()) { |
3020 | | // Nothing interesting to check for orindary-ABI parameters. |
3021 | 26.9k | case ParameterABI::Ordinary: |
3022 | 26.9k | continue; |
3023 | | |
3024 | | // swift_indirect_result parameters must be a prefix of the function |
3025 | | // arguments. |
3026 | 83 | case ParameterABI::SwiftIndirectResult: |
3027 | 83 | checkCompatible(paramIndex, RequiredCC::SwiftOrSwiftAsync); |
3028 | 83 | if (paramIndex != 0 && |
3029 | 83 | EPI.ExtParameterInfos[paramIndex - 1].getABI() |
3030 | 33 | != ParameterABI::SwiftIndirectResult) { |
3031 | 3 | S.Diag(getParamLoc(paramIndex), |
3032 | 3 | diag::err_swift_indirect_result_not_first); |
3033 | 3 | } |
3034 | 83 | continue; |
3035 | | |
3036 | 64 | case ParameterABI::SwiftContext: |
3037 | 64 | checkCompatible(paramIndex, RequiredCC::SwiftOrSwiftAsync); |
3038 | 64 | continue; |
3039 | | |
3040 | | // SwiftAsyncContext is not limited to swiftasynccall functions. |
3041 | 149 | case ParameterABI::SwiftAsyncContext: |
3042 | 149 | continue; |
3043 | | |
3044 | | // swift_error parameters must be preceded by a swift_context parameter. |
3045 | 34 | case ParameterABI::SwiftErrorResult: |
3046 | 34 | checkCompatible(paramIndex, RequiredCC::OnlySwift); |
3047 | 34 | if (paramIndex == 0 || |
3048 | 34 | EPI.ExtParameterInfos[paramIndex - 1].getABI() != |
3049 | 31 | ParameterABI::SwiftContext) { |
3050 | 6 | S.Diag(getParamLoc(paramIndex), |
3051 | 6 | diag::err_swift_error_result_not_after_swift_context); |
3052 | 6 | } |
3053 | 34 | continue; |
3054 | 27.2k | } |
3055 | 0 | llvm_unreachable("bad ABI kind"); |
3056 | 0 | } |
3057 | 8.95k | } |
3058 | | |
3059 | | QualType Sema::BuildFunctionType(QualType T, |
3060 | | MutableArrayRef<QualType> ParamTypes, |
3061 | | SourceLocation Loc, DeclarationName Entity, |
3062 | 1.39M | const FunctionProtoType::ExtProtoInfo &EPI) { |
3063 | 1.39M | bool Invalid = false; |
3064 | | |
3065 | 1.39M | Invalid |= CheckFunctionReturnType(T, Loc); |
3066 | | |
3067 | 3.51M | for (unsigned Idx = 0, Cnt = ParamTypes.size(); Idx < Cnt; ++Idx2.11M ) { |
3068 | | // FIXME: Loc is too inprecise here, should use proper locations for args. |
3069 | 2.11M | QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); |
3070 | 2.11M | if (ParamType->isVoidType()) { |
3071 | 0 | Diag(Loc, diag::err_param_with_void_type); |
3072 | 0 | Invalid = true; |
3073 | 2.11M | } else if (ParamType->isHalfType() && !getLangOpts().NativeHalfArgsAndReturns0 && |
3074 | 2.11M | !Context.getTargetInfo().allowHalfArgsAndReturns()0 ) { |
3075 | | // Disallow half FP arguments. |
3076 | 0 | Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << |
3077 | 0 | FixItHint::CreateInsertion(Loc, "*"); |
3078 | 0 | Invalid = true; |
3079 | 2.11M | } else if (ParamType->isWebAssemblyTableType()) { |
3080 | 0 | Diag(Loc, diag::err_wasm_table_as_function_parameter); |
3081 | 0 | Invalid = true; |
3082 | 0 | } |
3083 | | |
3084 | | // C++2a [dcl.fct]p4: |
3085 | | // A parameter with volatile-qualified type is deprecated |
3086 | 2.11M | if (ParamType.isVolatileQualified() && getLangOpts().CPlusPlus2012 ) |
3087 | 2 | Diag(Loc, diag::warn_deprecated_volatile_param) << ParamType; |
3088 | | |
3089 | 2.11M | ParamTypes[Idx] = ParamType; |
3090 | 2.11M | } |
3091 | | |
3092 | 1.39M | if (EPI.ExtParameterInfos) { |
3093 | 86 | checkExtParameterInfos(*this, ParamTypes, EPI, |
3094 | 86 | [=](unsigned i) { return Loc; }0 ); |
3095 | 86 | } |
3096 | | |
3097 | 1.39M | if (EPI.ExtInfo.getProducesResult()) { |
3098 | | // This is just a warning, so we can't fail to build if we see it. |
3099 | 18 | checkNSReturnsRetainedReturnType(Loc, T); |
3100 | 18 | } |
3101 | | |
3102 | 1.39M | if (Invalid) |
3103 | 26 | return QualType(); |
3104 | | |
3105 | 1.39M | return Context.getFunctionType(T, ParamTypes, EPI); |
3106 | 1.39M | } |
3107 | | |
3108 | | /// Build a member pointer type \c T Class::*. |
3109 | | /// |
3110 | | /// \param T the type to which the member pointer refers. |
3111 | | /// \param Class the class type into which the member pointer points. |
3112 | | /// \param Loc the location where this type begins |
3113 | | /// \param Entity the name of the entity that will have this member pointer type |
3114 | | /// |
3115 | | /// \returns a member pointer type, if successful, or a NULL type if there was |
3116 | | /// an error. |
3117 | | QualType Sema::BuildMemberPointerType(QualType T, QualType Class, |
3118 | | SourceLocation Loc, |
3119 | 33.3k | DeclarationName Entity) { |
3120 | | // Verify that we're not building a pointer to pointer to function with |
3121 | | // exception specification. |
3122 | 33.3k | if (CheckDistantExceptionSpec(T)) { |
3123 | 0 | Diag(Loc, diag::err_distant_exception_spec); |
3124 | 0 | return QualType(); |
3125 | 0 | } |
3126 | | |
3127 | | // C++ 8.3.3p3: A pointer to member shall not point to ... a member |
3128 | | // with reference type, or "cv void." |
3129 | 33.3k | if (T->isReferenceType()) { |
3130 | 2 | Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) |
3131 | 2 | << getPrintableNameForEntity(Entity) << T; |
3132 | 2 | return QualType(); |
3133 | 2 | } |
3134 | | |
3135 | 33.3k | if (T->isVoidType()) { |
3136 | 3 | Diag(Loc, diag::err_illegal_decl_mempointer_to_void) |
3137 | 3 | << getPrintableNameForEntity(Entity); |
3138 | 3 | return QualType(); |
3139 | 3 | } |
3140 | | |
3141 | 33.2k | if (!Class->isDependentType() && !Class->isRecordType()4.60k ) { |
3142 | 106 | Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; |
3143 | 106 | return QualType(); |
3144 | 106 | } |
3145 | | |
3146 | 33.1k | if (T->isFunctionType() && getLangOpts().OpenCL27.6k && |
3147 | 33.1k | !getOpenCLOptions().isAvailableOption("__cl_clang_function_pointers", |
3148 | 4 | getLangOpts())) { |
3149 | 2 | Diag(Loc, diag::err_opencl_function_pointer) << /*pointer*/ 0; |
3150 | 2 | return QualType(); |
3151 | 2 | } |
3152 | | |
3153 | 33.1k | if (getLangOpts().HLSL && Loc.isValid()2 ) { |
3154 | 2 | Diag(Loc, diag::err_hlsl_pointers_unsupported) << 0; |
3155 | 2 | return QualType(); |
3156 | 2 | } |
3157 | | |
3158 | | // Adjust the default free function calling convention to the default method |
3159 | | // calling convention. |
3160 | 33.1k | bool IsCtorOrDtor = |
3161 | 33.1k | (Entity.getNameKind() == DeclarationName::CXXConstructorName) || |
3162 | 33.1k | (Entity.getNameKind() == DeclarationName::CXXDestructorName); |
3163 | 33.1k | if (T->isFunctionType()) |
3164 | 27.6k | adjustMemberFunctionCC(T, /*HasThisPointer=*/true, IsCtorOrDtor, Loc); |
3165 | | |
3166 | 33.1k | return Context.getMemberPointerType(T, Class.getTypePtr()); |
3167 | 33.1k | } |
3168 | | |
3169 | | /// Build a block pointer type. |
3170 | | /// |
3171 | | /// \param T The type to which we'll be building a block pointer. |
3172 | | /// |
3173 | | /// \param Loc The source location, used for diagnostics. |
3174 | | /// |
3175 | | /// \param Entity The name of the entity that involves the block pointer |
3176 | | /// type, if known. |
3177 | | /// |
3178 | | /// \returns A suitable block pointer type, if there are no |
3179 | | /// errors. Otherwise, returns a NULL type. |
3180 | | QualType Sema::BuildBlockPointerType(QualType T, |
3181 | | SourceLocation Loc, |
3182 | 61.4k | DeclarationName Entity) { |
3183 | 61.4k | if (!T->isFunctionType()) { |
3184 | 11 | Diag(Loc, diag::err_nonfunction_block_type); |
3185 | 11 | return QualType(); |
3186 | 11 | } |
3187 | | |
3188 | 61.4k | if (checkQualifiedFunction(*this, T, Loc, QFK_BlockPointer)) |
3189 | 0 | return QualType(); |
3190 | | |
3191 | 61.4k | if (getLangOpts().OpenCL) |
3192 | 163 | T = deduceOpenCLPointeeAddrSpace(*this, T); |
3193 | | |
3194 | 61.4k | return Context.getBlockPointerType(T); |
3195 | 61.4k | } |
3196 | | |
3197 | 297M | QualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { |
3198 | 297M | QualType QT = Ty.get(); |
3199 | 297M | if (QT.isNull()) { |
3200 | 2.31M | if (TInfo) *TInfo = nullptr162 ; |
3201 | 2.31M | return QualType(); |
3202 | 2.31M | } |
3203 | | |
3204 | 295M | TypeSourceInfo *DI = nullptr; |
3205 | 295M | if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { |
3206 | 21.5M | QT = LIT->getType(); |
3207 | 21.5M | DI = LIT->getTypeSourceInfo(); |
3208 | 21.5M | } |
3209 | | |
3210 | 295M | if (TInfo) *TInfo = DI152M ; |
3211 | 295M | return QT; |
3212 | 297M | } |
3213 | | |
3214 | | static void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, |
3215 | | Qualifiers::ObjCLifetime ownership, |
3216 | | unsigned chunkIndex); |
3217 | | |
3218 | | /// Given that this is the declaration of a parameter under ARC, |
3219 | | /// attempt to infer attributes and such for pointer-to-whatever |
3220 | | /// types. |
3221 | | static void inferARCWriteback(TypeProcessingState &state, |
3222 | 163k | QualType &declSpecType) { |
3223 | 163k | Sema &S = state.getSema(); |
3224 | 163k | Declarator &declarator = state.getDeclarator(); |
3225 | | |
3226 | | // TODO: should we care about decl qualifiers? |
3227 | | |
3228 | | // Check whether the declarator has the expected form. We walk |
3229 | | // from the inside out in order to make the block logic work. |
3230 | 163k | unsigned outermostPointerIndex = 0; |
3231 | 163k | bool isBlockPointer = false; |
3232 | 163k | unsigned numPointers = 0; |
3233 | 221k | for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i57.8k ) { |
3234 | 59.5k | unsigned chunkIndex = i; |
3235 | 59.5k | DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); |
3236 | 59.5k | switch (chunk.Kind) { |
3237 | 270 | case DeclaratorChunk::Paren: |
3238 | | // Ignore parens. |
3239 | 270 | break; |
3240 | | |
3241 | 8.05k | case DeclaratorChunk::Reference: |
3242 | 57.5k | case DeclaratorChunk::Pointer: |
3243 | | // Count the number of pointers. Treat references |
3244 | | // interchangeably as pointers; if they're mis-ordered, normal |
3245 | | // type building will discover that. |
3246 | 57.5k | outermostPointerIndex = chunkIndex; |
3247 | 57.5k | numPointers++; |
3248 | 57.5k | break; |
3249 | | |
3250 | 804 | case DeclaratorChunk::BlockPointer: |
3251 | | // If we have a pointer to block pointer, that's an acceptable |
3252 | | // indirect reference; anything else is not an application of |
3253 | | // the rules. |
3254 | 804 | if (numPointers != 1) return; |
3255 | 0 | numPointers++; |
3256 | 0 | outermostPointerIndex = chunkIndex; |
3257 | 0 | isBlockPointer = true; |
3258 | | |
3259 | | // We don't care about pointer structure in return values here. |
3260 | 0 | goto done; |
3261 | | |
3262 | 682 | case DeclaratorChunk::Array: // suppress if written (id[])? |
3263 | 944 | case DeclaratorChunk::Function: |
3264 | 950 | case DeclaratorChunk::MemberPointer: |
3265 | 950 | case DeclaratorChunk::Pipe: |
3266 | 950 | return; |
3267 | 59.5k | } |
3268 | 59.5k | } |
3269 | 161k | done: |
3270 | | |
3271 | | // If we have *one* pointer, then we want to throw the qualifier on |
3272 | | // the declaration-specifiers, which means that it needs to be a |
3273 | | // retainable object type. |
3274 | 161k | if (numPointers == 1) { |
3275 | | // If it's not a retainable object type, the rule doesn't apply. |
3276 | 53.6k | if (!declSpecType->isObjCRetainableType()) return53.3k ; |
3277 | | |
3278 | | // If it already has lifetime, don't do anything. |
3279 | 235 | if (declSpecType.getObjCLifetime()) return133 ; |
3280 | | |
3281 | | // Otherwise, modify the type in-place. |
3282 | 102 | Qualifiers qs; |
3283 | | |
3284 | 102 | if (declSpecType->isObjCARCImplicitlyUnretainedType()) |
3285 | 4 | qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); |
3286 | 98 | else |
3287 | 98 | qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); |
3288 | 102 | declSpecType = S.Context.getQualifiedType(declSpecType, qs); |
3289 | | |
3290 | | // If we have *two* pointers, then we want to throw the qualifier on |
3291 | | // the outermost pointer. |
3292 | 108k | } else if (numPointers == 2) { |
3293 | | // If we don't have a block pointer, we need to check whether the |
3294 | | // declaration-specifiers gave us something that will turn into a |
3295 | | // retainable object pointer after we slap the first pointer on it. |
3296 | 1.80k | if (!isBlockPointer && !declSpecType->isObjCObjectType()) |
3297 | 962 | return; |
3298 | | |
3299 | | // Look for an explicit lifetime attribute there. |
3300 | 845 | DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); |
3301 | 845 | if (chunk.Kind != DeclaratorChunk::Pointer && |
3302 | 845 | chunk.Kind != DeclaratorChunk::BlockPointer1 ) |
3303 | 1 | return; |
3304 | 844 | for (const ParsedAttr &AL : chunk.getAttrs()) |
3305 | 263 | if (AL.getKind() == ParsedAttr::AT_ObjCOwnership) |
3306 | 91 | return; |
3307 | | |
3308 | 753 | transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, |
3309 | 753 | outermostPointerIndex); |
3310 | | |
3311 | | // Any other number of pointers/references does not trigger the rule. |
3312 | 106k | } else return; |
3313 | | |
3314 | | // TODO: mark whether we did this inference? |
3315 | 161k | } |
3316 | | |
3317 | | void Sema::diagnoseIgnoredQualifiers(unsigned DiagID, unsigned Quals, |
3318 | | SourceLocation FallbackLoc, |
3319 | | SourceLocation ConstQualLoc, |
3320 | | SourceLocation VolatileQualLoc, |
3321 | | SourceLocation RestrictQualLoc, |
3322 | | SourceLocation AtomicQualLoc, |
3323 | 365 | SourceLocation UnalignedQualLoc) { |
3324 | 365 | if (!Quals) |
3325 | 19 | return; |
3326 | | |
3327 | 346 | struct Qual { |
3328 | 346 | const char *Name; |
3329 | 346 | unsigned Mask; |
3330 | 346 | SourceLocation Loc; |
3331 | 346 | } const QualKinds[5] = { |
3332 | 346 | { "const", DeclSpec::TQ_const, ConstQualLoc }, |
3333 | 346 | { "volatile", DeclSpec::TQ_volatile, VolatileQualLoc }, |
3334 | 346 | { "restrict", DeclSpec::TQ_restrict, RestrictQualLoc }, |
3335 | 346 | { "__unaligned", DeclSpec::TQ_unaligned, UnalignedQualLoc }, |
3336 | 346 | { "_Atomic", DeclSpec::TQ_atomic, AtomicQualLoc } |
3337 | 346 | }; |
3338 | | |
3339 | 346 | SmallString<32> QualStr; |
3340 | 346 | unsigned NumQuals = 0; |
3341 | 346 | SourceLocation Loc; |
3342 | 346 | FixItHint FixIts[5]; |
3343 | | |
3344 | | // Build a string naming the redundant qualifiers. |
3345 | 1.73k | for (auto &E : QualKinds) { |
3346 | 1.73k | if (Quals & E.Mask) { |
3347 | 376 | if (!QualStr.empty()) QualStr += ' '30 ; |
3348 | 376 | QualStr += E.Name; |
3349 | | |
3350 | | // If we have a location for the qualifier, offer a fixit. |
3351 | 376 | SourceLocation QualLoc = E.Loc; |
3352 | 376 | if (QualLoc.isValid()) { |
3353 | 347 | FixIts[NumQuals] = FixItHint::CreateRemoval(QualLoc); |
3354 | 347 | if (Loc.isInvalid() || |
3355 | 347 | getSourceManager().isBeforeInTranslationUnit(QualLoc, Loc)29 ) |
3356 | 319 | Loc = QualLoc; |
3357 | 347 | } |
3358 | | |
3359 | 376 | ++NumQuals; |
3360 | 376 | } |
3361 | 1.73k | } |
3362 | | |
3363 | 346 | Diag(Loc.isInvalid() ? FallbackLoc28 : Loc318 , DiagID) |
3364 | 346 | << QualStr << NumQuals << FixIts[0] << FixIts[1] << FixIts[2] << FixIts[3]; |
3365 | 346 | } |
3366 | | |
3367 | | // Diagnose pointless type qualifiers on the return type of a function. |
3368 | | static void diagnoseRedundantReturnTypeQualifiers(Sema &S, QualType RetTy, |
3369 | | Declarator &D, |
3370 | 377 | unsigned FunctionChunkIndex) { |
3371 | 377 | const DeclaratorChunk::FunctionTypeInfo &FTI = |
3372 | 377 | D.getTypeObject(FunctionChunkIndex).Fun; |
3373 | 377 | if (FTI.hasTrailingReturnType()) { |
3374 | 18 | S.diagnoseIgnoredQualifiers(diag::warn_qual_return_type, |
3375 | 18 | RetTy.getLocalCVRQualifiers(), |
3376 | 18 | FTI.getTrailingReturnTypeLoc()); |
3377 | 18 | return; |
3378 | 18 | } |
3379 | | |
3380 | 359 | for (unsigned OuterChunkIndex = FunctionChunkIndex + 1, |
3381 | 359 | End = D.getNumTypeObjects(); |
3382 | 362 | OuterChunkIndex != End; ++OuterChunkIndex3 ) { |
3383 | 35 | DeclaratorChunk &OuterChunk = D.getTypeObject(OuterChunkIndex); |
3384 | 35 | switch (OuterChunk.Kind) { |
3385 | 3 | case DeclaratorChunk::Paren: |
3386 | 3 | continue; |
3387 | | |
3388 | 22 | case DeclaratorChunk::Pointer: { |
3389 | 22 | DeclaratorChunk::PointerTypeInfo &PTI = OuterChunk.Ptr; |
3390 | 22 | S.diagnoseIgnoredQualifiers( |
3391 | 22 | diag::warn_qual_return_type, |
3392 | 22 | PTI.TypeQuals, |
3393 | 22 | SourceLocation(), |
3394 | 22 | PTI.ConstQualLoc, |
3395 | 22 | PTI.VolatileQualLoc, |
3396 | 22 | PTI.RestrictQualLoc, |
3397 | 22 | PTI.AtomicQualLoc, |
3398 | 22 | PTI.UnalignedQualLoc); |
3399 | 22 | return; |
3400 | 0 | } |
3401 | | |
3402 | 0 | case DeclaratorChunk::Function: |
3403 | 0 | case DeclaratorChunk::BlockPointer: |
3404 | 1 | case DeclaratorChunk::Reference: |
3405 | 1 | case DeclaratorChunk::Array: |
3406 | 10 | case DeclaratorChunk::MemberPointer: |
3407 | 10 | case DeclaratorChunk::Pipe: |
3408 | | // FIXME: We can't currently provide an accurate source location and a |
3409 | | // fix-it hint for these. |
3410 | 10 | unsigned AtomicQual = RetTy->isAtomicType() ? DeclSpec::TQ_atomic0 : 0; |
3411 | 10 | S.diagnoseIgnoredQualifiers(diag::warn_qual_return_type, |
3412 | 10 | RetTy.getCVRQualifiers() | AtomicQual, |
3413 | 10 | D.getIdentifierLoc()); |
3414 | 10 | return; |
3415 | 35 | } |
3416 | | |
3417 | 0 | llvm_unreachable("unknown declarator chunk kind"); |
3418 | 0 | } |
3419 | | |
3420 | | // If the qualifiers come from a conversion function type, don't diagnose |
3421 | | // them -- they're not necessarily redundant, since such a conversion |
3422 | | // operator can be explicitly called as "x.operator const int()". |
3423 | 327 | if (D.getName().getKind() == UnqualifiedIdKind::IK_ConversionFunctionId) |
3424 | 15 | return; |
3425 | | |
3426 | | // Just parens all the way out to the decl specifiers. Diagnose any qualifiers |
3427 | | // which are present there. |
3428 | 312 | S.diagnoseIgnoredQualifiers(diag::warn_qual_return_type, |
3429 | 312 | D.getDeclSpec().getTypeQualifiers(), |
3430 | 312 | D.getIdentifierLoc(), |
3431 | 312 | D.getDeclSpec().getConstSpecLoc(), |
3432 | 312 | D.getDeclSpec().getVolatileSpecLoc(), |
3433 | 312 | D.getDeclSpec().getRestrictSpecLoc(), |
3434 | 312 | D.getDeclSpec().getAtomicSpecLoc(), |
3435 | 312 | D.getDeclSpec().getUnalignedSpecLoc()); |
3436 | 312 | } |
3437 | | |
3438 | | static std::pair<QualType, TypeSourceInfo *> |
3439 | | InventTemplateParameter(TypeProcessingState &state, QualType T, |
3440 | | TypeSourceInfo *TrailingTSI, AutoType *Auto, |
3441 | 3.28k | InventedTemplateParameterInfo &Info) { |
3442 | 3.28k | Sema &S = state.getSema(); |
3443 | 3.28k | Declarator &D = state.getDeclarator(); |
3444 | | |
3445 | 3.28k | const unsigned TemplateParameterDepth = Info.AutoTemplateParameterDepth; |
3446 | 3.28k | const unsigned AutoParameterPosition = Info.TemplateParams.size(); |
3447 | 3.28k | const bool IsParameterPack = D.hasEllipsis(); |
3448 | | |
3449 | | // If auto is mentioned in a lambda parameter or abbreviated function |
3450 | | // template context, convert it to a template parameter type. |
3451 | | |
3452 | | // Create the TemplateTypeParmDecl here to retrieve the corresponding |
3453 | | // template parameter type. Template parameters are temporarily added |
3454 | | // to the TU until the associated TemplateDecl is created. |
3455 | 3.28k | TemplateTypeParmDecl *InventedTemplateParam = |
3456 | 3.28k | TemplateTypeParmDecl::Create( |
3457 | 3.28k | S.Context, S.Context.getTranslationUnitDecl(), |
3458 | 3.28k | /*KeyLoc=*/D.getDeclSpec().getTypeSpecTypeLoc(), |
3459 | 3.28k | /*NameLoc=*/D.getIdentifierLoc(), |
3460 | 3.28k | TemplateParameterDepth, AutoParameterPosition, |
3461 | 3.28k | S.InventAbbreviatedTemplateParameterTypeName( |
3462 | 3.28k | D.getIdentifier(), AutoParameterPosition), false, |
3463 | 3.28k | IsParameterPack, /*HasTypeConstraint=*/Auto->isConstrained()); |
3464 | 3.28k | InventedTemplateParam->setImplicit(); |
3465 | 3.28k | Info.TemplateParams.push_back(InventedTemplateParam); |
3466 | | |
3467 | | // Attach type constraints to the new parameter. |
3468 | 3.28k | if (Auto->isConstrained()) { |
3469 | 220 | if (TrailingTSI) { |
3470 | | // The 'auto' appears in a trailing return type we've already built; |
3471 | | // extract its type constraints to attach to the template parameter. |
3472 | 0 | AutoTypeLoc AutoLoc = TrailingTSI->getTypeLoc().getContainedAutoTypeLoc(); |
3473 | 0 | TemplateArgumentListInfo TAL(AutoLoc.getLAngleLoc(), AutoLoc.getRAngleLoc()); |
3474 | 0 | bool Invalid = false; |
3475 | 0 | for (unsigned Idx = 0; Idx < AutoLoc.getNumArgs(); ++Idx) { |
3476 | 0 | if (D.getEllipsisLoc().isInvalid() && !Invalid && |
3477 | 0 | S.DiagnoseUnexpandedParameterPack(AutoLoc.getArgLoc(Idx), |
3478 | 0 | Sema::UPPC_TypeConstraint)) |
3479 | 0 | Invalid = true; |
3480 | 0 | TAL.addArgument(AutoLoc.getArgLoc(Idx)); |
3481 | 0 | } |
3482 | |
|
3483 | 0 | if (!Invalid) { |
3484 | 0 | S.AttachTypeConstraint( |
3485 | 0 | AutoLoc.getNestedNameSpecifierLoc(), AutoLoc.getConceptNameInfo(), |
3486 | 0 | AutoLoc.getNamedConcept(), |
3487 | 0 | AutoLoc.hasExplicitTemplateArgs() ? &TAL : nullptr, |
3488 | 0 | InventedTemplateParam, D.getEllipsisLoc()); |
3489 | 0 | } |
3490 | 220 | } else { |
3491 | | // The 'auto' appears in the decl-specifiers; we've not finished forming |
3492 | | // TypeSourceInfo for it yet. |
3493 | 220 | TemplateIdAnnotation *TemplateId = D.getDeclSpec().getRepAsTemplateId(); |
3494 | 220 | TemplateArgumentListInfo TemplateArgsInfo; |
3495 | 220 | bool Invalid = false; |
3496 | 220 | if (TemplateId->LAngleLoc.isValid()) { |
3497 | 150 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), |
3498 | 150 | TemplateId->NumArgs); |
3499 | 150 | S.translateTemplateArguments(TemplateArgsPtr, TemplateArgsInfo); |
3500 | | |
3501 | 150 | if (D.getEllipsisLoc().isInvalid()) { |
3502 | 142 | for (TemplateArgumentLoc Arg : TemplateArgsInfo.arguments()) { |
3503 | 142 | if (S.DiagnoseUnexpandedParameterPack(Arg, |
3504 | 142 | Sema::UPPC_TypeConstraint)) { |
3505 | 2 | Invalid = true; |
3506 | 2 | break; |
3507 | 2 | } |
3508 | 142 | } |
3509 | 142 | } |
3510 | 150 | } |
3511 | 220 | if (!Invalid) { |
3512 | 218 | S.AttachTypeConstraint( |
3513 | 218 | D.getDeclSpec().getTypeSpecScope().getWithLocInContext(S.Context), |
3514 | 218 | DeclarationNameInfo(DeclarationName(TemplateId->Name), |
3515 | 218 | TemplateId->TemplateNameLoc), |
3516 | 218 | cast<ConceptDecl>(TemplateId->Template.get().getAsTemplateDecl()), |
3517 | 218 | TemplateId->LAngleLoc.isValid() ? &TemplateArgsInfo148 : nullptr70 , |
3518 | 218 | InventedTemplateParam, D.getEllipsisLoc()); |
3519 | 218 | } |
3520 | 220 | } |
3521 | 220 | } |
3522 | | |
3523 | | // Replace the 'auto' in the function parameter with this invented |
3524 | | // template type parameter. |
3525 | | // FIXME: Retain some type sugar to indicate that this was written |
3526 | | // as 'auto'? |
3527 | 3.28k | QualType Replacement(InventedTemplateParam->getTypeForDecl(), 0); |
3528 | 3.28k | QualType NewT = state.ReplaceAutoType(T, Replacement); |
3529 | 3.28k | TypeSourceInfo *NewTSI = |
3530 | 3.28k | TrailingTSI ? S.ReplaceAutoTypeSourceInfo(TrailingTSI, Replacement)8 |
3531 | 3.28k | : nullptr3.27k ; |
3532 | 3.28k | return {NewT, NewTSI}; |
3533 | 3.28k | } |
3534 | | |
3535 | | static TypeSourceInfo * |
3536 | | GetTypeSourceInfoForDeclarator(TypeProcessingState &State, |
3537 | | QualType T, TypeSourceInfo *ReturnTypeInfo); |
3538 | | |
3539 | | static QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, |
3540 | 155M | TypeSourceInfo *&ReturnTypeInfo) { |
3541 | 155M | Sema &SemaRef = state.getSema(); |
3542 | 155M | Declarator &D = state.getDeclarator(); |
3543 | 155M | QualType T; |
3544 | 155M | ReturnTypeInfo = nullptr; |
3545 | | |
3546 | | // The TagDecl owned by the DeclSpec. |
3547 | 155M | TagDecl *OwnedTagDecl = nullptr; |
3548 | | |
3549 | 155M | switch (D.getName().getKind()) { |
3550 | 0 | case UnqualifiedIdKind::IK_ImplicitSelfParam: |
3551 | 489k | case UnqualifiedIdKind::IK_OperatorFunctionId: |
3552 | 155M | case UnqualifiedIdKind::IK_Identifier: |
3553 | 155M | case UnqualifiedIdKind::IK_LiteralOperatorId: |
3554 | 155M | case UnqualifiedIdKind::IK_TemplateId: |
3555 | 155M | T = ConvertDeclSpecToType(state); |
3556 | | |
3557 | 155M | if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()155M ) { |
3558 | 450k | OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); |
3559 | | // Owned declaration is embedded in declarator. |
3560 | 450k | OwnedTagDecl->setEmbeddedInDeclarator(true); |
3561 | 450k | } |
3562 | 155M | break; |
3563 | | |
3564 | 419k | case UnqualifiedIdKind::IK_ConstructorName: |
3565 | 419k | case UnqualifiedIdKind::IK_ConstructorTemplateId: |
3566 | 488k | case UnqualifiedIdKind::IK_DestructorName: |
3567 | | // Constructors and destructors don't have return types. Use |
3568 | | // "void" instead. |
3569 | 488k | T = SemaRef.Context.VoidTy; |
3570 | 488k | processTypeAttrs(state, T, TAL_DeclSpec, |
3571 | 488k | D.getMutableDeclSpec().getAttributes()); |
3572 | 488k | break; |
3573 | | |
3574 | 1.61k | case UnqualifiedIdKind::IK_DeductionGuideName: |
3575 | | // Deduction guides have a trailing return type and no type in their |
3576 | | // decl-specifier sequence. Use a placeholder return type for now. |
3577 | 1.61k | T = SemaRef.Context.DependentTy; |
3578 | 1.61k | break; |
3579 | | |
3580 | 17.2k | case UnqualifiedIdKind::IK_ConversionFunctionId: |
3581 | | // The result type of a conversion function is the type that it |
3582 | | // converts to. |
3583 | 17.2k | T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, |
3584 | 17.2k | &ReturnTypeInfo); |
3585 | 17.2k | break; |
3586 | 155M | } |
3587 | | |
3588 | | // Note: We don't need to distribute declaration attributes (i.e. |
3589 | | // D.getDeclarationAttributes()) because those are always C++11 attributes, |
3590 | | // and those don't get distributed. |
3591 | 155M | distributeTypeAttrsFromDeclarator( |
3592 | 155M | state, T, SemaRef.IdentifyCUDATarget(D.getAttributes())); |
3593 | | |
3594 | | // Find the deduced type in this type. Look in the trailing return type if we |
3595 | | // have one, otherwise in the DeclSpec type. |
3596 | | // FIXME: The standard wording doesn't currently describe this. |
3597 | 155M | DeducedType *Deduced = T->getContainedDeducedType(); |
3598 | 155M | bool DeducedIsTrailingReturnType = false; |
3599 | 155M | if (Deduced && isa<AutoType>(Deduced)102k && D.hasTrailingReturnType()99.8k ) { |
3600 | 11.8k | QualType T = SemaRef.GetTypeFromParser(D.getTrailingReturnType()); |
3601 | 11.8k | Deduced = T.isNull() ? nullptr67 : T->getContainedDeducedType()11.8k ; |
3602 | 11.8k | DeducedIsTrailingReturnType = true; |
3603 | 11.8k | } |
3604 | | |
3605 | | // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. |
3606 | 155M | if (Deduced) { |
3607 | 90.4k | AutoType *Auto = dyn_cast<AutoType>(Deduced); |
3608 | 90.4k | int Error = -1; |
3609 | | |
3610 | | // Is this a 'auto' or 'decltype(auto)' type (as opposed to __auto_type or |
3611 | | // class template argument deduction)? |
3612 | 90.4k | bool IsCXXAutoType = |
3613 | 90.4k | (Auto && Auto->getKeyword() != AutoTypeKeyword::GNUAutoType88.2k ); |
3614 | 90.4k | bool IsDeducedReturnType = false; |
3615 | | |
3616 | 90.4k | switch (D.getContext()) { |
3617 | 4.56k | case DeclaratorContext::LambdaExpr: |
3618 | | // Declared return type of a lambda-declarator is implicit and is always |
3619 | | // 'auto'. |
3620 | 4.56k | break; |
3621 | 0 | case DeclaratorContext::ObjCParameter: |
3622 | 0 | case DeclaratorContext::ObjCResult: |
3623 | 0 | Error = 0; |
3624 | 0 | break; |
3625 | 2 | case DeclaratorContext::RequiresExpr: |
3626 | 2 | Error = 22; |
3627 | 2 | break; |
3628 | 575 | case DeclaratorContext::Prototype: |
3629 | 3.31k | case DeclaratorContext::LambdaExprParameter: { |
3630 | 3.31k | InventedTemplateParameterInfo *Info = nullptr; |
3631 | 3.31k | if (D.getContext() == DeclaratorContext::Prototype) { |
3632 | | // With concepts we allow 'auto' in function parameters. |
3633 | 575 | if (!SemaRef.getLangOpts().CPlusPlus20 || !Auto555 || |
3634 | 575 | Auto->getKeyword() != AutoTypeKeyword::Auto552 ) { |
3635 | 27 | Error = 0; |
3636 | 27 | break; |
3637 | 548 | } else if (!SemaRef.getCurScope()->isFunctionDeclarationScope()) { |
3638 | 5 | Error = 21; |
3639 | 5 | break; |
3640 | 5 | } |
3641 | | |
3642 | 543 | Info = &SemaRef.InventedParameterInfos.back(); |
3643 | 2.74k | } else { |
3644 | | // In C++14, generic lambdas allow 'auto' in their parameters. |
3645 | 2.74k | if (!SemaRef.getLangOpts().CPlusPlus14 || !Auto2.73k || |
3646 | 2.74k | Auto->getKeyword() != AutoTypeKeyword::Auto2.73k ) { |
3647 | 4 | Error = 16; |
3648 | 4 | break; |
3649 | 4 | } |
3650 | 2.73k | Info = SemaRef.getCurLambda(); |
3651 | 2.73k | assert(Info && "No LambdaScopeInfo on the stack!"); |
3652 | 2.73k | } |
3653 | | |
3654 | | // We'll deal with inventing template parameters for 'auto' in trailing |
3655 | | // return types when we pick up the trailing return type when processing |
3656 | | // the function chunk. |
3657 | 3.28k | if (!DeducedIsTrailingReturnType) |
3658 | 3.27k | T = InventTemplateParameter(state, T, nullptr, Auto, *Info).first; |
3659 | 3.28k | break; |
3660 | 3.31k | } |
3661 | 2.28k | case DeclaratorContext::Member: { |
3662 | 2.28k | if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static || |
3663 | 2.28k | D.isFunctionDeclarator()1.42k ) |
3664 | 2.25k | break; |
3665 | 36 | bool Cxx = SemaRef.getLangOpts().CPlusPlus; |
3666 | 36 | if (isa<ObjCContainerDecl>(SemaRef.CurContext)) { |
3667 | 4 | Error = 6; // Interface member. |
3668 | 32 | } else { |
3669 | 32 | switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { |
3670 | 0 | case TagTypeKind::Enum: |
3671 | 0 | llvm_unreachable("unhandled tag kind"); |
3672 | 25 | case TagTypeKind::Struct: |
3673 | 25 | Error = Cxx ? 121 : 24 ; /* Struct member */ |
3674 | 25 | break; |
3675 | 1 | case TagTypeKind::Union: |
3676 | 1 | Error = Cxx ? 30 : 4; /* Union member */ |
3677 | 1 | break; |
3678 | 6 | case TagTypeKind::Class: |
3679 | 6 | Error = 5; /* Class member */ |
3680 | 6 | break; |
3681 | 0 | case TagTypeKind::Interface: |
3682 | 0 | Error = 6; /* Interface member */ |
3683 | 0 | break; |
3684 | 32 | } |
3685 | 32 | } |
3686 | 36 | if (D.getDeclSpec().isFriendSpecified()) |
3687 | 11 | Error = 20; // Friend type |
3688 | 36 | break; |
3689 | 36 | } |
3690 | 9 | case DeclaratorContext::CXXCatch: |
3691 | 10 | case DeclaratorContext::ObjCCatch: |
3692 | 10 | Error = 7; // Exception declaration |
3693 | 10 | break; |
3694 | 291 | case DeclaratorContext::TemplateParam: |
3695 | 291 | if (isa<DeducedTemplateSpecializationType>(Deduced) && |
3696 | 291 | !SemaRef.getLangOpts().CPlusPlus2020 ) |
3697 | 2 | Error = 19; // Template parameter (until C++20) |
3698 | 289 | else if (!SemaRef.getLangOpts().CPlusPlus17) |
3699 | 5 | Error = 8; // Template parameter (until C++17) |
3700 | 291 | break; |
3701 | 0 | case DeclaratorContext::BlockLiteral: |
3702 | 0 | Error = 9; // Block literal |
3703 | 0 | break; |
3704 | 1.34k | case DeclaratorContext::TemplateArg: |
3705 | | // Within a template argument list, a deduced template specialization |
3706 | | // type will be reinterpreted as a template template argument. |
3707 | 1.34k | if (isa<DeducedTemplateSpecializationType>(Deduced) && |
3708 | 1.34k | !D.getNumTypeObjects()1.33k && |
3709 | 1.34k | D.getDeclSpec().getParsedSpecifiers() == DeclSpec::PQ_TypeSpecifier1.33k ) |
3710 | 1.33k | break; |
3711 | 1.34k | [[fallthrough]];16 |
3712 | 17 | case DeclaratorContext::TemplateTypeArg: |
3713 | 17 | Error = 10; // Template type argument |
3714 | 17 | break; |
3715 | 13 | case DeclaratorContext::AliasDecl: |
3716 | 13 | case DeclaratorContext::AliasTemplate: |
3717 | 13 | Error = 12; // Type alias |
3718 | 13 | break; |
3719 | 233 | case DeclaratorContext::TrailingReturn: |
3720 | 284 | case DeclaratorContext::TrailingReturnVar: |
3721 | 284 | if (!SemaRef.getLangOpts().CPlusPlus14 || !IsCXXAutoType276 ) |
3722 | 9 | Error = 13; // Function return type |
3723 | 284 | IsDeducedReturnType = true; |
3724 | 284 | break; |
3725 | 140 | case DeclaratorContext::ConversionId: |
3726 | 140 | if (!SemaRef.getLangOpts().CPlusPlus14 || !IsCXXAutoType138 ) |
3727 | 6 | Error = 14; // conversion-type-id |
3728 | 140 | IsDeducedReturnType = true; |
3729 | 140 | break; |
3730 | 407 | case DeclaratorContext::FunctionalCast: |
3731 | 407 | if (isa<DeducedTemplateSpecializationType>(Deduced)) |
3732 | 345 | break; |
3733 | 62 | if (SemaRef.getLangOpts().CPlusPlus23 && IsCXXAutoType58 && |
3734 | 62 | !Auto->isDecltypeAuto()58 ) |
3735 | 58 | break; // auto(x) |
3736 | 62 | [[fallthrough]];4 |
3737 | 46 | case DeclaratorContext::TypeName: |
3738 | 49 | case DeclaratorContext::Association: |
3739 | 49 | Error = 15; // Generic |
3740 | 49 | break; |
3741 | 6.23k | case DeclaratorContext::File: |
3742 | 74.4k | case DeclaratorContext::Block: |
3743 | 76.5k | case DeclaratorContext::ForInit: |
3744 | 76.6k | case DeclaratorContext::SelectionInit: |
3745 | 77.6k | case DeclaratorContext::Condition: |
3746 | | // FIXME: P0091R3 (erroneously) does not permit class template argument |
3747 | | // deduction in conditions, for-init-statements, and other declarations |
3748 | | // that are not simple-declarations. |
3749 | 77.6k | break; |
3750 | 97 | case DeclaratorContext::CXXNew: |
3751 | | // FIXME: P0091R3 does not permit class template argument deduction here, |
3752 | | // but we follow GCC and allow it anyway. |
3753 | 97 | if (!IsCXXAutoType && !isa<DeducedTemplateSpecializationType>(Deduced)18 ) |
3754 | 1 | Error = 17; // 'new' type |
3755 | 97 | break; |
3756 | 1 | case DeclaratorContext::KNRTypeList: |
3757 | 1 | Error = 18; // K&R function parameter |
3758 | 1 | break; |
3759 | 90.4k | } |
3760 | | |
3761 | 90.4k | if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) |
3762 | 13 | Error = 11; |
3763 | | |
3764 | | // In Objective-C it is an error to use 'auto' on a function declarator |
3765 | | // (and everywhere for '__auto_type'). |
3766 | 90.4k | if (D.isFunctionDeclarator() && |
3767 | 90.4k | (8.58k !SemaRef.getLangOpts().CPlusPlus118.58k || !IsCXXAutoType8.57k )) |
3768 | 13 | Error = 13; |
3769 | | |
3770 | 90.4k | SourceRange AutoRange = D.getDeclSpec().getTypeSpecTypeLoc(); |
3771 | 90.4k | if (D.getName().getKind() == UnqualifiedIdKind::IK_ConversionFunctionId) |
3772 | 62 | AutoRange = D.getName().getSourceRange(); |
3773 | | |
3774 | 90.4k | if (Error != -1) { |
3775 | 212 | unsigned Kind; |
3776 | 212 | if (Auto) { |
3777 | 160 | switch (Auto->getKeyword()) { |
3778 | 136 | case AutoTypeKeyword::Auto: Kind = 0; break; |
3779 | 14 | case AutoTypeKeyword::DecltypeAuto: Kind = 1; break; |
3780 | 10 | case AutoTypeKeyword::GNUAutoType: Kind = 2; break; |
3781 | 160 | } |
3782 | 160 | } else { |
3783 | 52 | assert(isa<DeducedTemplateSpecializationType>(Deduced) && |
3784 | 52 | "unknown auto type"); |
3785 | 52 | Kind = 3; |
3786 | 52 | } |
3787 | | |
3788 | 212 | auto *DTST = dyn_cast<DeducedTemplateSpecializationType>(Deduced); |
3789 | 212 | TemplateName TN = DTST ? DTST->getTemplateName()52 : TemplateName()160 ; |
3790 | | |
3791 | 212 | SemaRef.Diag(AutoRange.getBegin(), diag::err_auto_not_allowed) |
3792 | 212 | << Kind << Error << (int)SemaRef.getTemplateNameKindForDiagnostics(TN) |
3793 | 212 | << QualType(Deduced, 0) << AutoRange; |
3794 | 212 | if (auto *TD = TN.getAsTemplateDecl()) |
3795 | 52 | SemaRef.Diag(TD->getLocation(), diag::note_template_decl_here); |
3796 | | |
3797 | 212 | T = SemaRef.Context.IntTy; |
3798 | 212 | D.setInvalidType(true); |
3799 | 90.2k | } else if (Auto && D.getContext() != DeclaratorContext::LambdaExpr88.0k ) { |
3800 | | // If there was a trailing return type, we already got |
3801 | | // warn_cxx98_compat_trailing_return_type in the parser. |
3802 | 83.4k | SemaRef.Diag(AutoRange.getBegin(), |
3803 | 83.4k | D.getContext() == DeclaratorContext::LambdaExprParameter |
3804 | 83.4k | ? diag::warn_cxx11_compat_generic_lambda2.73k |
3805 | 83.4k | : IsDeducedReturnType80.7k |
3806 | 80.7k | ? diag::warn_cxx11_compat_deduced_return_type409 |
3807 | 80.7k | : diag::warn_cxx98_compat_auto_type_specifier80.3k ) |
3808 | 83.4k | << AutoRange; |
3809 | 83.4k | } |
3810 | 90.4k | } |
3811 | | |
3812 | 155M | if (SemaRef.getLangOpts().CPlusPlus && |
3813 | 155M | OwnedTagDecl69.1M && OwnedTagDecl->isCompleteDefinition()85.7k ) { |
3814 | | // Check the contexts where C++ forbids the declaration of a new class |
3815 | | // or enumeration in a type-specifier-seq. |
3816 | 67.5k | unsigned DiagID = 0; |
3817 | 67.5k | switch (D.getContext()) { |
3818 | 0 | case DeclaratorContext::TrailingReturn: |
3819 | 0 | case DeclaratorContext::TrailingReturnVar: |
3820 | | // Class and enumeration definitions are syntactically not allowed in |
3821 | | // trailing return types. |
3822 | 0 | llvm_unreachable("parser should not have allowed this"); |
3823 | 0 | break; |
3824 | 51.6k | case DeclaratorContext::File: |
3825 | 61.6k | case DeclaratorContext::Member: |
3826 | 67.4k | case DeclaratorContext::Block: |
3827 | 67.4k | case DeclaratorContext::ForInit: |
3828 | 67.4k | case DeclaratorContext::SelectionInit: |
3829 | 67.4k | case DeclaratorContext::BlockLiteral: |
3830 | 67.4k | case DeclaratorContext::LambdaExpr: |
3831 | | // C++11 [dcl.type]p3: |
3832 | | // A type-specifier-seq shall not define a class or enumeration unless |
3833 | | // it appears in the type-id of an alias-declaration (7.1.3) that is not |
3834 | | // the declaration of a template-declaration. |
3835 | 67.4k | case DeclaratorContext::AliasDecl: |
3836 | 67.4k | break; |
3837 | 5 | case DeclaratorContext::AliasTemplate: |
3838 | 5 | DiagID = diag::err_type_defined_in_alias_template; |
3839 | 5 | break; |
3840 | 34 | case DeclaratorContext::TypeName: |
3841 | 34 | case DeclaratorContext::FunctionalCast: |
3842 | 34 | case DeclaratorContext::ConversionId: |
3843 | 34 | case DeclaratorContext::TemplateParam: |
3844 | 34 | case DeclaratorContext::CXXNew: |
3845 | 34 | case DeclaratorContext::CXXCatch: |
3846 | 34 | case DeclaratorContext::ObjCCatch: |
3847 | 34 | case DeclaratorContext::TemplateArg: |
3848 | 34 | case DeclaratorContext::TemplateTypeArg: |
3849 | 35 | case DeclaratorContext::Association: |
3850 | 35 | DiagID = diag::err_type_defined_in_type_specifier; |
3851 | 35 | break; |
3852 | 5 | case DeclaratorContext::Prototype: |
3853 | 5 | case DeclaratorContext::LambdaExprParameter: |
3854 | 5 | case DeclaratorContext::ObjCParameter: |
3855 | 6 | case DeclaratorContext::ObjCResult: |
3856 | 6 | case DeclaratorContext::KNRTypeList: |
3857 | 6 | case DeclaratorContext::RequiresExpr: |
3858 | | // C++ [dcl.fct]p6: |
3859 | | // Types shall not be defined in return or parameter types. |
3860 | 6 | DiagID = diag::err_type_defined_in_param_type; |
3861 | 6 | break; |
3862 | 17 | case DeclaratorContext::Condition: |
3863 | | // C++ 6.4p2: |
3864 | | // The type-specifier-seq shall not contain typedef and shall not declare |
3865 | | // a new class or enumeration. |
3866 | 17 | DiagID = diag::err_type_defined_in_condition; |
3867 | 17 | break; |
3868 | 67.5k | } |
3869 | | |
3870 | 67.5k | if (DiagID != 0) { |
3871 | 63 | SemaRef.Diag(OwnedTagDecl->getLocation(), DiagID) |
3872 | 63 | << SemaRef.Context.getTypeDeclType(OwnedTagDecl); |
3873 | 63 | D.setInvalidType(true); |
3874 | 63 | } |
3875 | 67.5k | } |
3876 | | |
3877 | 155M | assert(!T.isNull() && "This function should not return a null type"); |
3878 | 155M | return T; |
3879 | 155M | } |
3880 | | |
3881 | | /// Produce an appropriate diagnostic for an ambiguity between a function |
3882 | | /// declarator and a C++ direct-initializer. |
3883 | | static void warnAboutAmbiguousFunction(Sema &S, Declarator &D, |
3884 | 18.8k | DeclaratorChunk &DeclType, QualType RT) { |
3885 | 18.8k | const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; |
3886 | 18.8k | assert(FTI.isAmbiguous && "no direct-initializer / function ambiguity"); |
3887 | | |
3888 | | // If the return type is void there is no ambiguity. |
3889 | 18.8k | if (RT->isVoidType()) |
3890 | 10.1k | return; |
3891 | | |
3892 | | // An initializer for a non-class type can have at most one argument. |
3893 | 8.77k | if (!RT->isRecordType() && FTI.NumParams > 17.32k ) |
3894 | 491 | return; |
3895 | | |
3896 | | // An initializer for a reference must have exactly one argument. |
3897 | 8.28k | if (RT->isReferenceType() && FTI.NumParams != 1516 ) |
3898 | 451 | return; |
3899 | | |
3900 | | // Only warn if this declarator is declaring a function at block scope, and |
3901 | | // doesn't have a storage class (such as 'extern') specified. |
3902 | 7.83k | if (!D.isFunctionDeclarator() || |
3903 | 7.83k | D.getFunctionDefinitionKind() != FunctionDefinitionKind::Declaration7.76k || |
3904 | 7.83k | !S.CurContext->isFunctionOrMethod()7.72k || |
3905 | 7.83k | D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_unspecified142 ) |
3906 | 7.69k | return; |
3907 | | |
3908 | | // Inside a condition, a direct initializer is not permitted. We allow one to |
3909 | | // be parsed in order to give better diagnostics in condition parsing. |
3910 | 136 | if (D.getContext() == DeclaratorContext::Condition) |
3911 | 4 | return; |
3912 | | |
3913 | 132 | SourceRange ParenRange(DeclType.Loc, DeclType.EndLoc); |
3914 | | |
3915 | 132 | S.Diag(DeclType.Loc, |
3916 | 132 | FTI.NumParams ? diag::warn_parens_disambiguated_as_function_declaration24 |
3917 | 132 | : diag::warn_empty_parens_are_function_decl108 ) |
3918 | 132 | << ParenRange; |
3919 | | |
3920 | | // If the declaration looks like: |
3921 | | // T var1, |
3922 | | // f(); |
3923 | | // and name lookup finds a function named 'f', then the ',' was |
3924 | | // probably intended to be a ';'. |
3925 | 132 | if (!D.isFirstDeclarator() && D.getIdentifier()19 ) { |
3926 | 19 | FullSourceLoc Comma(D.getCommaLoc(), S.SourceMgr); |
3927 | 19 | FullSourceLoc Name(D.getIdentifierLoc(), S.SourceMgr); |
3928 | 19 | if (Comma.getFileID() != Name.getFileID() || |
3929 | 19 | Comma.getSpellingLineNumber() != Name.getSpellingLineNumber()) { |
3930 | 19 | LookupResult Result(S, D.getIdentifier(), SourceLocation(), |
3931 | 19 | Sema::LookupOrdinaryName); |
3932 | 19 | if (S.LookupName(Result, S.getCurScope())) |
3933 | 13 | S.Diag(D.getCommaLoc(), diag::note_empty_parens_function_call) |
3934 | 13 | << FixItHint::CreateReplacement(D.getCommaLoc(), ";") |
3935 | 13 | << D.getIdentifier(); |
3936 | 19 | Result.suppressDiagnostics(); |
3937 | 19 | } |
3938 | 19 | } |
3939 | | |
3940 | 132 | if (FTI.NumParams > 0) { |
3941 | | // For a declaration with parameters, eg. "T var(T());", suggest adding |
3942 | | // parens around the first parameter to turn the declaration into a |
3943 | | // variable declaration. |
3944 | 24 | SourceRange Range = FTI.Params[0].Param->getSourceRange(); |
3945 | 24 | SourceLocation B = Range.getBegin(); |
3946 | 24 | SourceLocation E = S.getLocForEndOfToken(Range.getEnd()); |
3947 | | // FIXME: Maybe we should suggest adding braces instead of parens |
3948 | | // in C++11 for classes that don't have an initializer_list constructor. |
3949 | 24 | S.Diag(B, diag::note_additional_parens_for_variable_declaration) |
3950 | 24 | << FixItHint::CreateInsertion(B, "(") |
3951 | 24 | << FixItHint::CreateInsertion(E, ")"); |
3952 | 108 | } else { |
3953 | | // For a declaration without parameters, eg. "T var();", suggest replacing |
3954 | | // the parens with an initializer to turn the declaration into a variable |
3955 | | // declaration. |
3956 | 108 | const CXXRecordDecl *RD = RT->getAsCXXRecordDecl(); |
3957 | | |
3958 | | // Empty parens mean value-initialization, and no parens mean |
3959 | | // default initialization. These are equivalent if the default |
3960 | | // constructor is user-provided or if zero-initialization is a |
3961 | | // no-op. |
3962 | 108 | if (RD && RD->hasDefinition()31 && |
3963 | 108 | (27 RD->isEmpty()27 || RD->hasUserProvidedDefaultConstructor()18 )) |
3964 | 13 | S.Diag(DeclType.Loc, diag::note_empty_parens_default_ctor) |
3965 | 13 | << FixItHint::CreateRemoval(ParenRange); |
3966 | 95 | else { |
3967 | 95 | std::string Init = |
3968 | 95 | S.getFixItZeroInitializerForType(RT, ParenRange.getBegin()); |
3969 | 95 | if (Init.empty() && S.LangOpts.CPlusPlus1112 ) |
3970 | 9 | Init = "{}"; |
3971 | 95 | if (!Init.empty()) |
3972 | 92 | S.Diag(DeclType.Loc, diag::note_empty_parens_zero_initialize) |
3973 | 92 | << FixItHint::CreateReplacement(ParenRange, Init); |
3974 | 95 | } |
3975 | 108 | } |
3976 | 132 | } |
3977 | | |
3978 | | /// Produce an appropriate diagnostic for a declarator with top-level |
3979 | | /// parentheses. |
3980 | 489 | static void warnAboutRedundantParens(Sema &S, Declarator &D, QualType T) { |
3981 | 489 | DeclaratorChunk &Paren = D.getTypeObject(D.getNumTypeObjects() - 1); |
3982 | 489 | assert(Paren.Kind == DeclaratorChunk::Paren && |
3983 | 489 | "do not have redundant top-level parentheses"); |
3984 | | |
3985 | | // This is a syntactic check; we're not interested in cases that arise |
3986 | | // during template instantiation. |
3987 | 489 | if (S.inTemplateInstantiation()) |
3988 | 0 | return; |
3989 | | |
3990 | | // Check whether this could be intended to be a construction of a temporary |
3991 | | // object in C++ via a function-style cast. |
3992 | 489 | bool CouldBeTemporaryObject = |
3993 | 489 | S.getLangOpts().CPlusPlus && D.isExpressionContext()450 && |
3994 | 489 | !D.isInvalidType()140 && D.getIdentifier()128 && |
3995 | 489 | D.getDeclSpec().getParsedSpecifiers() == DeclSpec::PQ_TypeSpecifier122 && |
3996 | 489 | (111 T->isRecordType()111 || T->isDependentType()66 ) && |
3997 | 489 | D.getDeclSpec().getTypeQualifiers() == 046 && D.isFirstDeclarator()46 ; |
3998 | | |
3999 | 489 | bool StartsWithDeclaratorId = true; |
4000 | 810 | for (auto &C : D.type_objects()) { |
4001 | 810 | switch (C.Kind) { |
4002 | 551 | case DeclaratorChunk::Paren: |
4003 | 551 | if (&C == &Paren) |
4004 | 489 | continue; |
4005 | 551 | [[fallthrough]];62 |
4006 | 103 | case DeclaratorChunk::Pointer: |
4007 | 103 | StartsWithDeclaratorId = false; |
4008 | 103 | continue; |
4009 | | |
4010 | 18 | case DeclaratorChunk::Array: |
4011 | 18 | if (!C.Arr.NumElts) |
4012 | 0 | CouldBeTemporaryObject = false; |
4013 | 18 | continue; |
4014 | | |
4015 | 10 | case DeclaratorChunk::Reference: |
4016 | | // FIXME: Suppress the warning here if there is no initializer; we're |
4017 | | // going to give an error anyway. |
4018 | | // We assume that something like 'T (&x) = y;' is highly likely to not |
4019 | | // be intended to be a temporary object. |
4020 | 10 | CouldBeTemporaryObject = false; |
4021 | 10 | StartsWithDeclaratorId = false; |
4022 | 10 | continue; |
4023 | | |
4024 | 56 | case DeclaratorChunk::Function: |
4025 | | // In a new-type-id, function chunks require parentheses. |
4026 | 56 | if (D.getContext() == DeclaratorContext::CXXNew) |
4027 | 0 | return; |
4028 | | // FIXME: "A(f())" deserves a vexing-parse warning, not just a |
4029 | | // redundant-parens warning, but we don't know whether the function |
4030 | | // chunk was syntactically valid as an expression here. |
4031 | 56 | CouldBeTemporaryObject = false; |
4032 | 56 | continue; |
4033 | | |
4034 | 0 | case DeclaratorChunk::BlockPointer: |
4035 | 134 | case DeclaratorChunk::MemberPointer: |
4036 | 134 | case DeclaratorChunk::Pipe: |
4037 | | // These cannot appear in expressions. |
4038 | 134 | CouldBeTemporaryObject = false; |
4039 | 134 | StartsWithDeclaratorId = false; |
4040 | 134 | continue; |
4041 | 810 | } |
4042 | 810 | } |
4043 | | |
4044 | | // FIXME: If there is an initializer, assume that this is not intended to be |
4045 | | // a construction of a temporary object. |
4046 | | |
4047 | | // Check whether the name has already been declared; if not, this is not a |
4048 | | // function-style cast. |
4049 | 489 | if (CouldBeTemporaryObject) { |
4050 | 33 | LookupResult Result(S, D.getIdentifier(), SourceLocation(), |
4051 | 33 | Sema::LookupOrdinaryName); |
4052 | 33 | if (!S.LookupName(Result, S.getCurScope())) |
4053 | 18 | CouldBeTemporaryObject = false; |
4054 | 33 | Result.suppressDiagnostics(); |
4055 | 33 | } |
4056 | | |
4057 | 489 | SourceRange ParenRange(Paren.Loc, Paren.EndLoc); |
4058 | | |
4059 | 489 | if (!CouldBeTemporaryObject) { |
4060 | | // If we have A (::B), the parentheses affect the meaning of the program. |
4061 | | // Suppress the warning in that case. Don't bother looking at the DeclSpec |
4062 | | // here: even (e.g.) "int ::x" is visually ambiguous even though it's |
4063 | | // formally unambiguous. |
4064 | 474 | if (StartsWithDeclaratorId && D.getCXXScopeSpec().isValid()272 ) { |
4065 | 67 | for (NestedNameSpecifier *NNS = D.getCXXScopeSpec().getScopeRep(); NNS; |
4066 | 53 | NNS = NNS->getPrefix()41 ) { |
4067 | 53 | if (NNS->getKind() == NestedNameSpecifier::Global) |
4068 | 12 | return; |
4069 | 53 | } |
4070 | 26 | } |
4071 | | |
4072 | 462 | S.Diag(Paren.Loc, diag::warn_redundant_parens_around_declarator) |
4073 | 462 | << ParenRange << FixItHint::CreateRemoval(Paren.Loc) |
4074 | 462 | << FixItHint::CreateRemoval(Paren.EndLoc); |
4075 | 462 | return; |
4076 | 474 | } |
4077 | | |
4078 | 15 | S.Diag(Paren.Loc, diag::warn_parens_disambiguated_as_variable_declaration) |
4079 | 15 | << ParenRange << D.getIdentifier(); |
4080 | 15 | auto *RD = T->getAsCXXRecordDecl(); |
4081 | 15 | if (!RD || !RD->hasDefinition()14 || RD->hasNonTrivialDestructor()14 ) |
4082 | 7 | S.Diag(Paren.Loc, diag::note_raii_guard_add_name) |
4083 | 7 | << FixItHint::CreateInsertion(Paren.Loc, " varname") << T |
4084 | 7 | << D.getIdentifier(); |
4085 | | // FIXME: A cast to void is probably a better suggestion in cases where it's |
4086 | | // valid (when there is no initializer and we're not in a condition). |
4087 | 15 | S.Diag(D.getBeginLoc(), diag::note_function_style_cast_add_parentheses) |
4088 | 15 | << FixItHint::CreateInsertion(D.getBeginLoc(), "(") |
4089 | 15 | << FixItHint::CreateInsertion(S.getLocForEndOfToken(D.getEndLoc()), ")"); |
4090 | 15 | S.Diag(Paren.Loc, diag::note_remove_parens_for_variable_declaration) |
4091 | 15 | << FixItHint::CreateRemoval(Paren.Loc) |
4092 | 15 | << FixItHint::CreateRemoval(Paren.EndLoc); |
4093 | 15 | } |
4094 | | |
4095 | | /// Helper for figuring out the default CC for a function declarator type. If |
4096 | | /// this is the outermost chunk, then we can determine the CC from the |
4097 | | /// declarator context. If not, then this could be either a member function |
4098 | | /// type or normal function type. |
4099 | | static CallingConv getCCForDeclaratorChunk( |
4100 | | Sema &S, Declarator &D, const ParsedAttributesView &AttrList, |
4101 | 36.9M | const DeclaratorChunk::FunctionTypeInfo &FTI, unsigned ChunkIndex) { |
4102 | 36.9M | assert(D.getTypeObject(ChunkIndex).Kind == DeclaratorChunk::Function); |
4103 | | |
4104 | | // Check for an explicit CC attribute. |
4105 | 36.9M | for (const ParsedAttr &AL : AttrList) { |
4106 | 1.31M | switch (AL.getKind()) { |
4107 | 40.6k | CALLING_CONV_ATTRS_CASELIST393 : { |
4108 | | // Ignore attributes that don't validate or can't apply to the |
4109 | | // function type. We'll diagnose the failure to apply them in |
4110 | | // handleFunctionTypeAttr. |
4111 | 40.6k | CallingConv CC; |
4112 | 40.6k | if (!S.CheckCallingConvAttr(AL, CC, /*FunctionDecl=*/nullptr, |
4113 | 2.95k | S.IdentifyCUDATarget(D.getAttributes())) && |
4114 | 2.95k | (2.91k !FTI.isVariadic2.91k || supportsVariadicCall(CC)86 )) { |
4115 | 2.88k | return CC; |
4116 | 2.88k | } |
4117 | 65 | break; |
4118 | 40.6k | } |
4119 | | |
4120 | 1.30M | default: |
4121 | 1.30M | break; |
4122 | 1.31M | } |
4123 | 1.31M | } |
4124 | | |
4125 | 36.9M | bool IsCXXInstanceMethod = false; |
4126 | | |
4127 | 36.9M | if (S.getLangOpts().CPlusPlus) { |
4128 | | // Look inwards through parentheses to see if this chunk will form a |
4129 | | // member pointer type or if we're the declarator. Any type attributes |
4130 | | // between here and there will override the CC we choose here. |
4131 | 16.3M | unsigned I = ChunkIndex; |
4132 | 16.3M | bool FoundNonParen = false; |
4133 | 16.6M | while (I && !FoundNonParen248k ) { |
4134 | 247k | --I; |
4135 | 247k | if (D.getTypeObject(I).Kind != DeclaratorChunk::Paren) |
4136 | 116k | FoundNonParen = true; |
4137 | 247k | } |
4138 | | |
4139 | 16.3M | if (FoundNonParen) { |
4140 | | // If we're not the declarator, we're a regular function type unless we're |
4141 | | // in a member pointer. |
4142 | 116k | IsCXXInstanceMethod = |
4143 | 116k | D.getTypeObject(I).Kind == DeclaratorChunk::MemberPointer; |
4144 | 16.2M | } else if (D.getContext() == DeclaratorContext::LambdaExpr) { |
4145 | | // This can only be a call operator for a lambda, which is an instance |
4146 | | // method, unless explicitly specified as 'static'. |
4147 | 7.73k | IsCXXInstanceMethod = |
4148 | 7.73k | D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static; |
4149 | 16.2M | } else { |
4150 | | // We're the innermost decl chunk, so must be a function declarator. |
4151 | 16.2M | assert(D.isFunctionDeclarator()); |
4152 | | |
4153 | | // If we're inside a record, we're declaring a method, but it could be |
4154 | | // explicitly or implicitly static. |
4155 | 16.2M | IsCXXInstanceMethod = |
4156 | 16.2M | D.isFirstDeclarationOfMember() && |
4157 | 16.2M | D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef1.67M && |
4158 | 16.2M | !D.isStaticMember()1.66M ; |
4159 | 16.2M | } |
4160 | 16.3M | } |
4161 | | |
4162 | 36.9M | CallingConv CC = S.Context.getDefaultCallingConvention(FTI.isVariadic, |
4163 | 36.9M | IsCXXInstanceMethod); |
4164 | | |
4165 | | // Attribute AT_OpenCLKernel affects the calling convention for SPIR |
4166 | | // and AMDGPU targets, hence it cannot be treated as a calling |
4167 | | // convention attribute. This is the simplest place to infer |
4168 | | // calling convention for OpenCL kernels. |
4169 | 36.9M | if (S.getLangOpts().OpenCL) { |
4170 | 518k | for (const ParsedAttr &AL : D.getDeclSpec().getAttributes()) { |
4171 | 518k | if (AL.getKind() == ParsedAttr::AT_OpenCLKernel) { |
4172 | 1.27k | CC = CC_OpenCLKernel; |
4173 | 1.27k | break; |
4174 | 1.27k | } |
4175 | 518k | } |
4176 | 36.6M | } else if (S.getLangOpts().CUDA) { |
4177 | | // If we're compiling CUDA/HIP code and targeting SPIR-V we need to make |
4178 | | // sure the kernels will be marked with the right calling convention so that |
4179 | | // they will be visible by the APIs that ingest SPIR-V. |
4180 | 18.1k | llvm::Triple Triple = S.Context.getTargetInfo().getTriple(); |
4181 | 18.1k | if (Triple.getArch() == llvm::Triple::spirv32 || |
4182 | 18.1k | Triple.getArch() == llvm::Triple::spirv6418.1k ) { |
4183 | 29 | for (const ParsedAttr &AL : D.getDeclSpec().getAttributes()) { |
4184 | 29 | if (AL.getKind() == ParsedAttr::AT_CUDAGlobal) { |
4185 | 7 | CC = CC_OpenCLKernel; |
4186 | 7 | break; |
4187 | 7 | } |
4188 | 29 | } |
4189 | 21 | } |
4190 | 18.1k | } |
4191 | | |
4192 | 36.9M | return CC; |
4193 | 36.9M | } |
4194 | | |
4195 | | namespace { |
4196 | | /// A simple notion of pointer kinds, which matches up with the various |
4197 | | /// pointer declarators. |
4198 | | enum class SimplePointerKind { |
4199 | | Pointer, |
4200 | | BlockPointer, |
4201 | | MemberPointer, |
4202 | | Array, |
4203 | | }; |
4204 | | } // end anonymous namespace |
4205 | | |
4206 | 2.57M | IdentifierInfo *Sema::getNullabilityKeyword(NullabilityKind nullability) { |
4207 | 2.57M | switch (nullability) { |
4208 | 2.11M | case NullabilityKind::NonNull: |
4209 | 2.11M | if (!Ident__Nonnull) |
4210 | 1.02k | Ident__Nonnull = PP.getIdentifierInfo("_Nonnull"); |
4211 | 2.11M | return Ident__Nonnull; |
4212 | | |
4213 | 449k | case NullabilityKind::Nullable: |
4214 | 449k | if (!Ident__Nullable) |
4215 | 431 | Ident__Nullable = PP.getIdentifierInfo("_Nullable"); |
4216 | 449k | return Ident__Nullable; |
4217 | | |
4218 | 0 | case NullabilityKind::NullableResult: |
4219 | 0 | if (!Ident__Nullable_result) |
4220 | 0 | Ident__Nullable_result = PP.getIdentifierInfo("_Nullable_result"); |
4221 | 0 | return Ident__Nullable_result; |
4222 | | |
4223 | 14.9k | case NullabilityKind::Unspecified: |
4224 | 14.9k | if (!Ident__Null_unspecified) |
4225 | 233 | Ident__Null_unspecified = PP.getIdentifierInfo("_Null_unspecified"); |
4226 | 14.9k | return Ident__Null_unspecified; |
4227 | 2.57M | } |
4228 | 0 | llvm_unreachable("Unknown nullability kind."); |
4229 | 0 | } |
4230 | | |
4231 | | /// Retrieve the identifier "NSError". |
4232 | 1.12M | IdentifierInfo *Sema::getNSErrorIdent() { |
4233 | 1.12M | if (!Ident_NSError) |
4234 | 2.62k | Ident_NSError = PP.getIdentifierInfo("NSError"); |
4235 | | |
4236 | 1.12M | return Ident_NSError; |
4237 | 1.12M | } |
4238 | | |
4239 | | /// Check whether there is a nullability attribute of any kind in the given |
4240 | | /// attribute list. |
4241 | 12.7M | static bool hasNullabilityAttr(const ParsedAttributesView &attrs) { |
4242 | 12.7M | for (const ParsedAttr &AL : attrs) { |
4243 | 890k | if (AL.getKind() == ParsedAttr::AT_TypeNonNull || |
4244 | 890k | AL.getKind() == ParsedAttr::AT_TypeNullable821k || |
4245 | 890k | AL.getKind() == ParsedAttr::AT_TypeNullableResult370k || |
4246 | 890k | AL.getKind() == ParsedAttr::AT_TypeNullUnspecified370k ) |
4247 | 543k | return true; |
4248 | 890k | } |
4249 | | |
4250 | 12.2M | return false; |
4251 | 12.7M | } |
4252 | | |
4253 | | namespace { |
4254 | | /// Describes the kind of a pointer a declarator describes. |
4255 | | enum class PointerDeclaratorKind { |
4256 | | // Not a pointer. |
4257 | | NonPointer, |
4258 | | // Single-level pointer. |
4259 | | SingleLevelPointer, |
4260 | | // Multi-level pointer (of any pointer kind). |
4261 | | MultiLevelPointer, |
4262 | | // CFFooRef* |
4263 | | MaybePointerToCFRef, |
4264 | | // CFErrorRef* |
4265 | | CFErrorRefPointer, |
4266 | | // NSError** |
4267 | | NSErrorPointerPointer, |
4268 | | }; |
4269 | | |
4270 | | /// Describes a declarator chunk wrapping a pointer that marks inference as |
4271 | | /// unexpected. |
4272 | | // These values must be kept in sync with diagnostics. |
4273 | | enum class PointerWrappingDeclaratorKind { |
4274 | | /// Pointer is top-level. |
4275 | | None = -1, |
4276 | | /// Pointer is an array element. |
4277 | | Array = 0, |
4278 | | /// Pointer is the referent type of a C++ reference. |
4279 | | Reference = 1 |
4280 | | }; |
4281 | | } // end anonymous namespace |
4282 | | |
4283 | | /// Classify the given declarator, whose type-specified is \c type, based on |
4284 | | /// what kind of pointer it refers to. |
4285 | | /// |
4286 | | /// This is used to determine the default nullability. |
4287 | | static PointerDeclaratorKind |
4288 | | classifyPointerDeclarator(Sema &S, QualType type, Declarator &declarator, |
4289 | 137M | PointerWrappingDeclaratorKind &wrappingKind) { |
4290 | 137M | unsigned numNormalPointers = 0; |
4291 | | |
4292 | | // For any dependent type, we consider it a non-pointer. |
4293 | 137M | if (type->isDependentType()) |
4294 | 3.77M | return PointerDeclaratorKind::NonPointer; |
4295 | | |
4296 | | // Look through the declarator chunks to identify pointers. |
4297 | 179M | for (unsigned i = 0, n = declarator.getNumTypeObjects(); 133M i != n; ++i45.1M ) { |
4298 | 45.2M | DeclaratorChunk &chunk = declarator.getTypeObject(i); |
4299 | 45.2M | switch (chunk.Kind) { |
4300 | 255k | case DeclaratorChunk::Array: |
4301 | 255k | if (numNormalPointers == 0) |
4302 | 254k | wrappingKind = PointerWrappingDeclaratorKind::Array; |
4303 | 255k | break; |
4304 | | |
4305 | 35.7M | case DeclaratorChunk::Function: |
4306 | 35.7M | case DeclaratorChunk::Pipe: |
4307 | 35.7M | break; |
4308 | | |
4309 | 49.4k | case DeclaratorChunk::BlockPointer: |
4310 | 51.8k | case DeclaratorChunk::MemberPointer: |
4311 | 51.8k | return numNormalPointers > 0 ? PointerDeclaratorKind::MultiLevelPointer60 |
4312 | 51.8k | : PointerDeclaratorKind::SingleLevelPointer51.7k ; |
4313 | | |
4314 | 113k | case DeclaratorChunk::Paren: |
4315 | 113k | break; |
4316 | | |
4317 | 462k | case DeclaratorChunk::Reference: |
4318 | 462k | if (numNormalPointers == 0) |
4319 | 462k | wrappingKind = PointerWrappingDeclaratorKind::Reference; |
4320 | 462k | break; |
4321 | | |
4322 | 8.56M | case DeclaratorChunk::Pointer: |
4323 | 8.56M | ++numNormalPointers; |
4324 | 8.56M | if (numNormalPointers > 2) |
4325 | 519 | return PointerDeclaratorKind::MultiLevelPointer; |
4326 | 8.56M | break; |
4327 | 45.2M | } |
4328 | 45.2M | } |
4329 | | |
4330 | | // Then, dig into the type specifier itself. |
4331 | 133M | unsigned numTypeSpecifierPointers = 0; |
4332 | 136M | do { |
4333 | | // Decompose normal pointers. |
4334 | 136M | if (auto ptrType = type->getAs<PointerType>()) { |
4335 | 2.40M | ++numNormalPointers; |
4336 | | |
4337 | 2.40M | if (numNormalPointers > 2) |
4338 | 4.81k | return PointerDeclaratorKind::MultiLevelPointer; |
4339 | | |
4340 | 2.39M | type = ptrType->getPointeeType(); |
4341 | 2.39M | ++numTypeSpecifierPointers; |
4342 | 2.39M | continue; |
4343 | 2.40M | } |
4344 | | |
4345 | | // Decompose block pointers. |
4346 | 133M | if (type->getAs<BlockPointerType>()) { |
4347 | 22.6k | return numNormalPointers > 0 ? PointerDeclaratorKind::MultiLevelPointer17 |
4348 | 22.6k | : PointerDeclaratorKind::SingleLevelPointer22.6k ; |
4349 | 22.6k | } |
4350 | | |
4351 | | // Decompose member pointers. |
4352 | 133M | if (type->getAs<MemberPointerType>()) { |
4353 | 896 | return numNormalPointers > 0 ? PointerDeclaratorKind::MultiLevelPointer11 |
4354 | 896 | : PointerDeclaratorKind::SingleLevelPointer885 ; |
4355 | 896 | } |
4356 | | |
4357 | | // Look at Objective-C object pointers. |
4358 | 133M | if (auto objcObjectPtr = type->getAs<ObjCObjectPointerType>()) { |
4359 | 506k | ++numNormalPointers; |
4360 | 506k | ++numTypeSpecifierPointers; |
4361 | | |
4362 | | // If this is NSError**, report that. |
4363 | 506k | if (auto objcClassDecl = objcObjectPtr->getInterfaceDecl()) { |
4364 | 215k | if (objcClassDecl->getIdentifier() == S.getNSErrorIdent() && |
4365 | 215k | numNormalPointers == 22 && numTypeSpecifierPointers < 22 ) { |
4366 | 1 | return PointerDeclaratorKind::NSErrorPointerPointer; |
4367 | 1 | } |
4368 | 215k | } |
4369 | | |
4370 | 506k | break; |
4371 | 506k | } |
4372 | | |
4373 | | // Look at Objective-C class types. |
4374 | 133M | if (auto objcClass = type->getAs<ObjCInterfaceType>()) { |
4375 | 900k | if (objcClass->getInterface()->getIdentifier() == S.getNSErrorIdent()) { |
4376 | 46.9k | if (numNormalPointers == 2 && numTypeSpecifierPointers < 231.5k ) |
4377 | 31.5k | return PointerDeclaratorKind::NSErrorPointerPointer; |
4378 | 46.9k | } |
4379 | | |
4380 | 869k | break; |
4381 | 900k | } |
4382 | | |
4383 | | // If at this point we haven't seen a pointer, we won't see one. |
4384 | 132M | if (numNormalPointers == 0) |
4385 | 122M | return PointerDeclaratorKind::NonPointer; |
4386 | | |
4387 | 9.73M | if (auto recordType = type->getAs<RecordType>()) { |
4388 | 2.64M | RecordDecl *recordDecl = recordType->getDecl(); |
4389 | | |
4390 | | // If this is CFErrorRef*, report it as such. |
4391 | 2.64M | if (numNormalPointers == 2 && numTypeSpecifierPointers < 2136k && |
4392 | 2.64M | S.isCFError(recordDecl)130k ) { |
4393 | 18.8k | return PointerDeclaratorKind::CFErrorRefPointer; |
4394 | 18.8k | } |
4395 | 2.62M | break; |
4396 | 2.64M | } |
4397 | | |
4398 | 7.09M | break; |
4399 | 9.73M | } while (true2.39M ); |
4400 | | |
4401 | 11.0M | switch (numNormalPointers) { |
4402 | 42 | case 0: |
4403 | 42 | return PointerDeclaratorKind::NonPointer; |
4404 | | |
4405 | 10.8M | case 1: |
4406 | 10.8M | return PointerDeclaratorKind::SingleLevelPointer; |
4407 | | |
4408 | 265k | case 2: |
4409 | 265k | return PointerDeclaratorKind::MaybePointerToCFRef; |
4410 | | |
4411 | 11 | default: |
4412 | 11 | return PointerDeclaratorKind::MultiLevelPointer; |
4413 | 11.0M | } |
4414 | 11.0M | } |
4415 | | |
4416 | 130k | bool Sema::isCFError(RecordDecl *RD) { |
4417 | | // If we already know about CFError, test it directly. |
4418 | 130k | if (CFError) |
4419 | 121k | return CFError == RD; |
4420 | | |
4421 | | // Check whether this is CFError, which we identify based on its bridge to |
4422 | | // NSError. CFErrorRef used to be declared with "objc_bridge" but is now |
4423 | | // declared with "objc_bridge_mutable", so look for either one of the two |
4424 | | // attributes. |
4425 | 8.30k | if (RD->getTagKind() == TagTypeKind::Struct) { |
4426 | 8.23k | IdentifierInfo *bridgedType = nullptr; |
4427 | 8.23k | if (auto bridgeAttr = RD->getAttr<ObjCBridgeAttr>()) |
4428 | 1.06k | bridgedType = bridgeAttr->getBridgedType(); |
4429 | 7.17k | else if (auto bridgeAttr = RD->getAttr<ObjCBridgeMutableAttr>()) |
4430 | 220 | bridgedType = bridgeAttr->getBridgedType(); |
4431 | | |
4432 | 8.23k | if (bridgedType == getNSErrorIdent()) { |
4433 | 244 | CFError = RD; |
4434 | 244 | return true; |
4435 | 244 | } |
4436 | 8.23k | } |
4437 | | |
4438 | 8.05k | return false; |
4439 | 8.30k | } |
4440 | | |
4441 | | static FileID getNullabilityCompletenessCheckFileID(Sema &S, |
4442 | 15.7M | SourceLocation loc) { |
4443 | | // If we're anywhere in a function, method, or closure context, don't perform |
4444 | | // completeness checks. |
4445 | 21.3M | for (DeclContext *ctx = S.CurContext; ctx; ctx = ctx->getParent()5.56M ) { |
4446 | 21.3M | if (ctx->isFunctionOrMethod()) |
4447 | 31.6k | return FileID(); |
4448 | | |
4449 | 21.3M | if (ctx->isFileContext()) |
4450 | 15.7M | break; |
4451 | 21.3M | } |
4452 | | |
4453 | | // We only care about the expansion location. |
4454 | 15.7M | loc = S.SourceMgr.getExpansionLoc(loc); |
4455 | 15.7M | FileID file = S.SourceMgr.getFileID(loc); |
4456 | 15.7M | if (file.isInvalid()) |
4457 | 548 | return FileID(); |
4458 | | |
4459 | | // Retrieve file information. |
4460 | 15.7M | bool invalid = false; |
4461 | 15.7M | const SrcMgr::SLocEntry &sloc = S.SourceMgr.getSLocEntry(file, &invalid); |
4462 | 15.7M | if (invalid || !sloc.isFile()) |
4463 | 0 | return FileID(); |
4464 | | |
4465 | | // We don't want to perform completeness checks on the main file or in |
4466 | | // system headers. |
4467 | 15.7M | const SrcMgr::FileInfo &fileInfo = sloc.getFile(); |
4468 | 15.7M | if (fileInfo.getIncludeLoc().isInvalid()) |
4469 | 190k | return FileID(); |
4470 | 15.5M | if (fileInfo.getFileCharacteristic() != SrcMgr::C_User && |
4471 | 15.5M | S.Diags.getSuppressSystemWarnings()15.5M ) { |
4472 | 15.5M | return FileID(); |
4473 | 15.5M | } |
4474 | | |
4475 | 49.9k | return file; |
4476 | 15.5M | } |
4477 | | |
4478 | | /// Creates a fix-it to insert a C-style nullability keyword at \p pointerLoc, |
4479 | | /// taking into account whitespace before and after. |
4480 | | template <typename DiagBuilderT> |
4481 | | static void fixItNullability(Sema &S, DiagBuilderT &Diag, |
4482 | | SourceLocation PointerLoc, |
4483 | 884 | NullabilityKind Nullability) { |
4484 | 884 | assert(PointerLoc.isValid()); |
4485 | 884 | if (PointerLoc.isMacroID()) |
4486 | 2 | return; |
4487 | | |
4488 | 882 | SourceLocation FixItLoc = S.getLocForEndOfToken(PointerLoc); |
4489 | 882 | if (!FixItLoc.isValid() || FixItLoc == PointerLoc) |
4490 | 0 | return; |
4491 | | |
4492 | 882 | const char *NextChar = S.SourceMgr.getCharacterData(FixItLoc); |
4493 | 882 | if (!NextChar) |
4494 | 0 | return; |
4495 | | |
4496 | 882 | SmallString<32> InsertionTextBuf{" "}; |
4497 | 882 | InsertionTextBuf += getNullabilitySpelling(Nullability); |
4498 | 882 | InsertionTextBuf += " "; |
4499 | 882 | StringRef InsertionText = InsertionTextBuf.str(); |
4500 | | |
4501 | 882 | if (isWhitespace(*NextChar)) { |
4502 | 146 | InsertionText = InsertionText.drop_back(); |
4503 | 736 | } else if (NextChar[-1] == '[') { |
4504 | 152 | if (NextChar[0] == ']') |
4505 | 120 | InsertionText = InsertionText.drop_back().drop_front(); |
4506 | 32 | else |
4507 | 32 | InsertionText = InsertionText.drop_front(); |
4508 | 584 | } else if (!isAsciiIdentifierContinue(NextChar[0], /*allow dollar*/ true) && |
4509 | 584 | !isAsciiIdentifierContinue(NextChar[-1], /*allow dollar*/ true)428 ) { |
4510 | 188 | InsertionText = InsertionText.drop_back().drop_front(); |
4511 | 188 | } |
4512 | | |
4513 | 882 | Diag << FixItHint::CreateInsertion(FixItLoc, InsertionText); |
4514 | 882 | } |
4515 | | |
4516 | | static void emitNullabilityConsistencyWarning(Sema &S, |
4517 | | SimplePointerKind PointerKind, |
4518 | | SourceLocation PointerLoc, |
4519 | 425 | SourceLocation PointerEndLoc) { |
4520 | 425 | assert(PointerLoc.isValid()); |
4521 | | |
4522 | 425 | if (PointerKind == SimplePointerKind::Array) { |
4523 | 82 | S.Diag(PointerLoc, diag::warn_nullability_missing_array); |
4524 | 343 | } else { |
4525 | 343 | S.Diag(PointerLoc, diag::warn_nullability_missing) |
4526 | 343 | << static_cast<unsigned>(PointerKind); |
4527 | 343 | } |
4528 | | |
4529 | 425 | auto FixItLoc = PointerEndLoc.isValid() ? PointerEndLoc194 : PointerLoc231 ; |
4530 | 425 | if (FixItLoc.isMacroID()) |
4531 | 6 | return; |
4532 | | |
4533 | 838 | auto addFixIt = [&](NullabilityKind Nullability) 419 { |
4534 | 838 | auto Diag = S.Diag(FixItLoc, diag::note_nullability_fix_it); |
4535 | 838 | Diag << static_cast<unsigned>(Nullability); |
4536 | 838 | Diag << static_cast<unsigned>(PointerKind); |
4537 | 838 | fixItNullability(S, Diag, FixItLoc, Nullability); |
4538 | 838 | }; |
4539 | 419 | addFixIt(NullabilityKind::Nullable); |
4540 | 419 | addFixIt(NullabilityKind::NonNull); |
4541 | 419 | } |
4542 | | |
4543 | | /// Complains about missing nullability if the file containing \p pointerLoc |
4544 | | /// has other uses of nullability (either the keywords or the \c assume_nonnull |
4545 | | /// pragma). |
4546 | | /// |
4547 | | /// If the file has \e not seen other uses of nullability, this particular |
4548 | | /// pointer is saved for possible later diagnosis. See recordNullabilitySeen(). |
4549 | | static void |
4550 | | checkNullabilityConsistency(Sema &S, SimplePointerKind pointerKind, |
4551 | | SourceLocation pointerLoc, |
4552 | 8.68M | SourceLocation pointerEndLoc = SourceLocation()) { |
4553 | | // Determine which file we're performing consistency checking for. |
4554 | 8.68M | FileID file = getNullabilityCompletenessCheckFileID(S, pointerLoc); |
4555 | 8.68M | if (file.isInvalid()) |
4556 | 8.63M | return; |
4557 | | |
4558 | | // If we haven't seen any type nullability in this file, we won't warn now |
4559 | | // about anything. |
4560 | 49.0k | FileNullability &fileNullability = S.NullabilityMap[file]; |
4561 | 49.0k | if (!fileNullability.SawTypeNullability) { |
4562 | | // If this is the first pointer declarator in the file, and the appropriate |
4563 | | // warning is on, record it in case we need to diagnose it retroactively. |
4564 | 48.6k | diag::kind diagKind; |
4565 | 48.6k | if (pointerKind == SimplePointerKind::Array) |
4566 | 562 | diagKind = diag::warn_nullability_missing_array; |
4567 | 48.0k | else |
4568 | 48.0k | diagKind = diag::warn_nullability_missing; |
4569 | | |
4570 | 48.6k | if (fileNullability.PointerLoc.isInvalid() && |
4571 | 48.6k | !S.Context.getDiagnostics().isIgnored(diagKind, pointerLoc)25.5k ) { |
4572 | 4.93k | fileNullability.PointerLoc = pointerLoc; |
4573 | 4.93k | fileNullability.PointerEndLoc = pointerEndLoc; |
4574 | 4.93k | fileNullability.PointerKind = static_cast<unsigned>(pointerKind); |
4575 | 4.93k | } |
4576 | | |
4577 | 48.6k | return; |
4578 | 48.6k | } |
4579 | | |
4580 | | // Complain about missing nullability. |
4581 | 407 | emitNullabilityConsistencyWarning(S, pointerKind, pointerLoc, pointerEndLoc); |
4582 | 407 | } |
4583 | | |
4584 | | /// Marks that a nullability feature has been used in the file containing |
4585 | | /// \p loc. |
4586 | | /// |
4587 | | /// If this file already had pointer types in it that were missing nullability, |
4588 | | /// the first such instance is retroactively diagnosed. |
4589 | | /// |
4590 | | /// \sa checkNullabilityConsistency |
4591 | 7.10M | static void recordNullabilitySeen(Sema &S, SourceLocation loc) { |
4592 | 7.10M | FileID file = getNullabilityCompletenessCheckFileID(S, loc); |
4593 | 7.10M | if (file.isInvalid()) |
4594 | 7.10M | return; |
4595 | | |
4596 | 961 | FileNullability &fileNullability = S.NullabilityMap[file]; |
4597 | 961 | if (fileNullability.SawTypeNullability) |
4598 | 910 | return; |
4599 | 51 | fileNullability.SawTypeNullability = true; |
4600 | | |
4601 | | // If we haven't seen any type nullability before, now we have. Retroactively |
4602 | | // diagnose the first unannotated pointer, if there was one. |
4603 | 51 | if (fileNullability.PointerLoc.isInvalid()) |
4604 | 33 | return; |
4605 | | |
4606 | 18 | auto kind = static_cast<SimplePointerKind>(fileNullability.PointerKind); |
4607 | 18 | emitNullabilityConsistencyWarning(S, kind, fileNullability.PointerLoc, |
4608 | 18 | fileNullability.PointerEndLoc); |
4609 | 18 | } |
4610 | | |
4611 | | /// Returns true if any of the declarator chunks before \p endIndex include a |
4612 | | /// level of indirection: array, pointer, reference, or pointer-to-member. |
4613 | | /// |
4614 | | /// Because declarator chunks are stored in outer-to-inner order, testing |
4615 | | /// every chunk before \p endIndex is testing all chunks that embed the current |
4616 | | /// chunk as part of their type. |
4617 | | /// |
4618 | | /// It is legal to pass the result of Declarator::getNumTypeObjects() as the |
4619 | | /// end index, in which case all chunks are tested. |
4620 | 1.63M | static bool hasOuterPointerLikeChunk(const Declarator &D, unsigned endIndex) { |
4621 | 1.63M | unsigned i = endIndex; |
4622 | 1.64M | while (i != 0) { |
4623 | | // Walk outwards along the declarator chunks. |
4624 | 104k | --i; |
4625 | 104k | const DeclaratorChunk &DC = D.getTypeObject(i); |
4626 | 104k | switch (DC.Kind) { |
4627 | 6.71k | case DeclaratorChunk::Paren: |
4628 | 6.71k | break; |
4629 | 5.16k | case DeclaratorChunk::Array: |
4630 | 90.3k | case DeclaratorChunk::Pointer: |
4631 | 94.4k | case DeclaratorChunk::Reference: |
4632 | 94.4k | case DeclaratorChunk::MemberPointer: |
4633 | 94.4k | return true; |
4634 | 2.34k | case DeclaratorChunk::Function: |
4635 | 3.67k | case DeclaratorChunk::BlockPointer: |
4636 | 3.67k | case DeclaratorChunk::Pipe: |
4637 | | // These are invalid anyway, so just ignore. |
4638 | 3.67k | break; |
4639 | 104k | } |
4640 | 104k | } |
4641 | 1.54M | return false; |
4642 | 1.63M | } |
4643 | | |
4644 | 86 | static bool IsNoDerefableChunk(const DeclaratorChunk &Chunk) { |
4645 | 86 | return (Chunk.Kind == DeclaratorChunk::Pointer || |
4646 | 86 | Chunk.Kind == DeclaratorChunk::Array14 ); |
4647 | 86 | } |
4648 | | |
4649 | | template<typename AttrT> |
4650 | 3.27M | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { |
4651 | 3.27M | AL.setUsedAsTypeAttr(); |
4652 | 3.27M | return ::new (Ctx) AttrT(Ctx, AL); |
4653 | 3.27M | } SemaType.cpp:clang::ObjCInertUnsafeUnretainedAttr* createSimpleAttr<clang::ObjCInertUnsafeUnretainedAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 2.24k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 2.24k | AL.setUsedAsTypeAttr(); | 4652 | 2.24k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 2.24k | } |
SemaType.cpp:clang::ArmMveStrictPolymorphismAttr* createSimpleAttr<clang::ArmMveStrictPolymorphismAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 1.58k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 1.58k | AL.setUsedAsTypeAttr(); | 4652 | 1.58k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 1.58k | } |
SemaType.cpp:clang::LifetimeBoundAttr* createSimpleAttr<clang::LifetimeBoundAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 8 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 8 | AL.setUsedAsTypeAttr(); | 4652 | 8 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 8 | } |
SemaType.cpp:clang::NoDerefAttr* createSimpleAttr<clang::NoDerefAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 99 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 99 | AL.setUsedAsTypeAttr(); | 4652 | 99 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 99 | } |
SemaType.cpp:clang::WebAssemblyFuncrefAttr* createSimpleAttr<clang::WebAssemblyFuncrefAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 10 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 10 | AL.setUsedAsTypeAttr(); | 4652 | 10 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 10 | } |
SemaType.cpp:clang::Ptr32Attr* createSimpleAttr<clang::Ptr32Attr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 67 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 67 | AL.setUsedAsTypeAttr(); | 4652 | 67 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 67 | } |
SemaType.cpp:clang::Ptr64Attr* createSimpleAttr<clang::Ptr64Attr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 38 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 38 | AL.setUsedAsTypeAttr(); | 4652 | 38 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 38 | } |
SemaType.cpp:clang::SPtrAttr* createSimpleAttr<clang::SPtrAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 24 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 24 | AL.setUsedAsTypeAttr(); | 4652 | 24 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 24 | } |
SemaType.cpp:clang::UPtrAttr* createSimpleAttr<clang::UPtrAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 18 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 18 | AL.setUsedAsTypeAttr(); | 4652 | 18 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 18 | } |
SemaType.cpp:clang::TypeNonNullAttr* createSimpleAttr<clang::TypeNonNullAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 2.21M | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 2.21M | AL.setUsedAsTypeAttr(); | 4652 | 2.21M | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 2.21M | } |
SemaType.cpp:clang::TypeNullableAttr* createSimpleAttr<clang::TypeNullableAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 989k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 989k | AL.setUsedAsTypeAttr(); | 4652 | 989k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 989k | } |
SemaType.cpp:clang::TypeNullableResultAttr* createSimpleAttr<clang::TypeNullableResultAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 18 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 18 | AL.setUsedAsTypeAttr(); | 4652 | 18 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 18 | } |
SemaType.cpp:clang::TypeNullUnspecifiedAttr* createSimpleAttr<clang::TypeNullUnspecifiedAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 43.7k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 43.7k | AL.setUsedAsTypeAttr(); | 4652 | 43.7k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 43.7k | } |
SemaType.cpp:clang::ObjCKindOfAttr* createSimpleAttr<clang::ObjCKindOfAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 1.84k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 1.84k | AL.setUsedAsTypeAttr(); | 4652 | 1.84k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 1.84k | } |
SemaType.cpp:clang::NSReturnsRetainedAttr* createSimpleAttr<clang::NSReturnsRetainedAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 13.5k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 13.5k | AL.setUsedAsTypeAttr(); | 4652 | 13.5k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 13.5k | } |
SemaType.cpp:clang::CDeclAttr* createSimpleAttr<clang::CDeclAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 474 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 474 | AL.setUsedAsTypeAttr(); | 4652 | 474 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 474 | } |
SemaType.cpp:clang::FastCallAttr* createSimpleAttr<clang::FastCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 233 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 233 | AL.setUsedAsTypeAttr(); | 4652 | 233 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 233 | } |
SemaType.cpp:clang::StdCallAttr* createSimpleAttr<clang::StdCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 285 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 285 | AL.setUsedAsTypeAttr(); | 4652 | 285 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 285 | } |
SemaType.cpp:clang::ThisCallAttr* createSimpleAttr<clang::ThisCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 79 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 79 | AL.setUsedAsTypeAttr(); | 4652 | 79 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 79 | } |
SemaType.cpp:clang::RegCallAttr* createSimpleAttr<clang::RegCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 247 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 247 | AL.setUsedAsTypeAttr(); | 4652 | 247 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 247 | } |
SemaType.cpp:clang::PascalAttr* createSimpleAttr<clang::PascalAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 23 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 23 | AL.setUsedAsTypeAttr(); | 4652 | 23 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 23 | } |
SemaType.cpp:clang::SwiftCallAttr* createSimpleAttr<clang::SwiftCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 1.22k | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 1.22k | AL.setUsedAsTypeAttr(); | 4652 | 1.22k | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 1.22k | } |
SemaType.cpp:clang::SwiftAsyncCallAttr* createSimpleAttr<clang::SwiftAsyncCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 173 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 173 | AL.setUsedAsTypeAttr(); | 4652 | 173 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 173 | } |
SemaType.cpp:clang::VectorCallAttr* createSimpleAttr<clang::VectorCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 214 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 214 | AL.setUsedAsTypeAttr(); | 4652 | 214 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 214 | } |
SemaType.cpp:clang::AArch64VectorPcsAttr* createSimpleAttr<clang::AArch64VectorPcsAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 13 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 13 | AL.setUsedAsTypeAttr(); | 4652 | 13 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 13 | } |
SemaType.cpp:clang::AArch64SVEPcsAttr* createSimpleAttr<clang::AArch64SVEPcsAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 12 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 12 | AL.setUsedAsTypeAttr(); | 4652 | 12 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 12 | } |
Unexecuted instantiation: SemaType.cpp:clang::ArmStreamingAttr* createSimpleAttr<clang::ArmStreamingAttr>(clang::ASTContext&, clang::ParsedAttr&) SemaType.cpp:clang::AMDGPUKernelCallAttr* createSimpleAttr<clang::AMDGPUKernelCallAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 12 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 12 | AL.setUsedAsTypeAttr(); | 4652 | 12 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 12 | } |
SemaType.cpp:clang::IntelOclBiccAttr* createSimpleAttr<clang::IntelOclBiccAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 8 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 8 | AL.setUsedAsTypeAttr(); | 4652 | 8 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 8 | } |
SemaType.cpp:clang::MSABIAttr* createSimpleAttr<clang::MSABIAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 50 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 50 | AL.setUsedAsTypeAttr(); | 4652 | 50 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 50 | } |
SemaType.cpp:clang::SysVABIAttr* createSimpleAttr<clang::SysVABIAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 37 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 37 | AL.setUsedAsTypeAttr(); | 4652 | 37 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 37 | } |
SemaType.cpp:clang::PreserveMostAttr* createSimpleAttr<clang::PreserveMostAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 36 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 36 | AL.setUsedAsTypeAttr(); | 4652 | 36 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 36 | } |
SemaType.cpp:clang::PreserveAllAttr* createSimpleAttr<clang::PreserveAllAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 27 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 27 | AL.setUsedAsTypeAttr(); | 4652 | 27 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 27 | } |
SemaType.cpp:clang::M68kRTDAttr* createSimpleAttr<clang::M68kRTDAttr>(clang::ASTContext&, clang::ParsedAttr&) Line | Count | Source | 4650 | 27 | static AttrT *createSimpleAttr(ASTContext &Ctx, ParsedAttr &AL) { | 4651 | 27 | AL.setUsedAsTypeAttr(); | 4652 | 27 | return ::new (Ctx) AttrT(Ctx, AL); | 4653 | 27 | } |
|
4654 | | |
4655 | | static Attr *createNullabilityAttr(ASTContext &Ctx, ParsedAttr &Attr, |
4656 | 3.24M | NullabilityKind NK) { |
4657 | 3.24M | switch (NK) { |
4658 | 2.21M | case NullabilityKind::NonNull: |
4659 | 2.21M | return createSimpleAttr<TypeNonNullAttr>(Ctx, Attr); |
4660 | | |
4661 | 989k | case NullabilityKind::Nullable: |
4662 | 989k | return createSimpleAttr<TypeNullableAttr>(Ctx, Attr); |
4663 | | |
4664 | 18 | case NullabilityKind::NullableResult: |
4665 | 18 | return createSimpleAttr<TypeNullableResultAttr>(Ctx, Attr); |
4666 | | |
4667 | 43.7k | case NullabilityKind::Unspecified: |
4668 | 43.7k | return createSimpleAttr<TypeNullUnspecifiedAttr>(Ctx, Attr); |
4669 | 3.24M | } |
4670 | 0 | llvm_unreachable("unknown NullabilityKind"); |
4671 | 0 | } |
4672 | | |
4673 | | // Diagnose whether this is a case with the multiple addr spaces. |
4674 | | // Returns true if this is an invalid case. |
4675 | | // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified |
4676 | | // by qualifiers for two or more different address spaces." |
4677 | | static bool DiagnoseMultipleAddrSpaceAttributes(Sema &S, LangAS ASOld, |
4678 | | LangAS ASNew, |
4679 | 43.2k | SourceLocation AttrLoc) { |
4680 | 43.2k | if (ASOld != LangAS::Default) { |
4681 | 76 | if (ASOld != ASNew) { |
4682 | 50 | S.Diag(AttrLoc, diag::err_attribute_address_multiple_qualifiers); |
4683 | 50 | return true; |
4684 | 50 | } |
4685 | | // Emit a warning if they are identical; it's likely unintended. |
4686 | 26 | S.Diag(AttrLoc, |
4687 | 26 | diag::warn_attribute_address_multiple_identical_qualifiers); |
4688 | 26 | } |
4689 | 43.2k | return false; |
4690 | 43.2k | } |
4691 | | |
4692 | | static TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, |
4693 | | QualType declSpecType, |
4694 | 155M | TypeSourceInfo *TInfo) { |
4695 | | // The TypeSourceInfo that this function returns will not be a null type. |
4696 | | // If there is an error, this function will fill in a dummy type as fallback. |
4697 | 155M | QualType T = declSpecType; |
4698 | 155M | Declarator &D = state.getDeclarator(); |
4699 | 155M | Sema &S = state.getSema(); |
4700 | 155M | ASTContext &Context = S.Context; |
4701 | 155M | const LangOptions &LangOpts = S.getLangOpts(); |
4702 | | |
4703 | | // The name we're declaring, if any. |
4704 | 155M | DeclarationName Name; |
4705 | 155M | if (D.getIdentifier()) |
4706 | 58.3M | Name = D.getIdentifier(); |
4707 | | |
4708 | | // Does this declaration declare a typedef-name? |
4709 | 155M | bool IsTypedefName = |
4710 | 155M | D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || |
4711 | 155M | D.getContext() == DeclaratorContext::AliasDecl153M || |
4712 | 155M | D.getContext() == DeclaratorContext::AliasTemplate153M ; |
4713 | | |
4714 | | // Does T refer to a function type with a cv-qualifier or a ref-qualifier? |
4715 | 155M | bool IsQualifiedFunction = T->isFunctionProtoType() && |
4716 | 155M | (2.01k !T->castAs<FunctionProtoType>()->getMethodQuals().empty()2.01k || |
4717 | 2.01k | T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None1.96k ); |
4718 | | |
4719 | | // If T is 'decltype(auto)', the only declarators we can have are parens |
4720 | | // and at most one function declarator if this is a function declaration. |
4721 | | // If T is a deduced class template specialization type, we can have no |
4722 | | // declarator chunks at all. |
4723 | 155M | if (auto *DT = T->getAs<DeducedType>()) { |
4724 | 98.5k | const AutoType *AT = T->getAs<AutoType>(); |
4725 | 98.5k | bool IsClassTemplateDeduction = isa<DeducedTemplateSpecializationType>(DT); |
4726 | 98.5k | if ((AT && AT->isDecltypeAuto()96.3k ) || IsClassTemplateDeduction97.6k ) { |
4727 | 3.78k | for (unsigned I = 0, E = D.getNumTypeObjects(); I != E; ++I670 ) { |
4728 | 719 | unsigned Index = E - I - 1; |
4729 | 719 | DeclaratorChunk &DeclChunk = D.getTypeObject(Index); |
4730 | 719 | unsigned DiagId = IsClassTemplateDeduction |
4731 | 719 | ? diag::err_deduced_class_template_compound_type14 |
4732 | 719 | : diag::err_decltype_auto_compound_type705 ; |
4733 | 719 | unsigned DiagKind = 0; |
4734 | 719 | switch (DeclChunk.Kind) { |
4735 | 38 | case DeclaratorChunk::Paren: |
4736 | | // FIXME: Rejecting this is a little silly. |
4737 | 38 | if (IsClassTemplateDeduction) { |
4738 | 2 | DiagKind = 4; |
4739 | 2 | break; |
4740 | 2 | } |
4741 | 36 | continue; |
4742 | 645 | case DeclaratorChunk::Function: { |
4743 | 645 | if (IsClassTemplateDeduction) { |
4744 | 2 | DiagKind = 3; |
4745 | 2 | break; |
4746 | 2 | } |
4747 | 643 | unsigned FnIndex; |
4748 | 643 | if (D.isFunctionDeclarationContext() && |
4749 | 643 | D.isFunctionDeclarator(FnIndex) && FnIndex == Index637 ) |
4750 | 634 | continue; |
4751 | 9 | DiagId = diag::err_decltype_auto_function_declarator_not_declaration; |
4752 | 9 | break; |
4753 | 643 | } |
4754 | 16 | case DeclaratorChunk::Pointer: |
4755 | 16 | case DeclaratorChunk::BlockPointer: |
4756 | 18 | case DeclaratorChunk::MemberPointer: |
4757 | 18 | DiagKind = 0; |
4758 | 18 | break; |
4759 | 10 | case DeclaratorChunk::Reference: |
4760 | 10 | DiagKind = 1; |
4761 | 10 | break; |
4762 | 8 | case DeclaratorChunk::Array: |
4763 | 8 | DiagKind = 2; |
4764 | 8 | break; |
4765 | 0 | case DeclaratorChunk::Pipe: |
4766 | 0 | break; |
4767 | 719 | } |
4768 | | |
4769 | 49 | S.Diag(DeclChunk.Loc, DiagId) << DiagKind; |
4770 | 49 | D.setInvalidType(true); |
4771 | 49 | break; |
4772 | 719 | } |
4773 | 3.11k | } |
4774 | 98.5k | } |
4775 | | |
4776 | | // Determine whether we should infer _Nonnull on pointer types. |
4777 | 155M | std::optional<NullabilityKind> inferNullability; |
4778 | 155M | bool inferNullabilityCS = false; |
4779 | 155M | bool inferNullabilityInnerOnly = false; |
4780 | 155M | bool inferNullabilityInnerOnlyComplete = false; |
4781 | | |
4782 | | // Are we in an assume-nonnull region? |
4783 | 155M | bool inAssumeNonNullRegion = false; |
4784 | 155M | SourceLocation assumeNonNullLoc = S.PP.getPragmaAssumeNonNullLoc(); |
4785 | 155M | if (assumeNonNullLoc.isValid()) { |
4786 | 5.06M | inAssumeNonNullRegion = true; |
4787 | 5.06M | recordNullabilitySeen(S, assumeNonNullLoc); |
4788 | 5.06M | } |
4789 | | |
4790 | | // Whether to complain about missing nullability specifiers or not. |
4791 | 155M | enum { |
4792 | | /// Never complain. |
4793 | 155M | CAMN_No, |
4794 | | /// Complain on the inner pointers (but not the outermost |
4795 | | /// pointer). |
4796 | 155M | CAMN_InnerPointers, |
4797 | | /// Complain about any pointers that don't have nullability |
4798 | | /// specified or inferred. |
4799 | 155M | CAMN_Yes |
4800 | 155M | } complainAboutMissingNullability = CAMN_No; |
4801 | 155M | unsigned NumPointersRemaining = 0; |
4802 | 155M | auto complainAboutInferringWithinChunk = PointerWrappingDeclaratorKind::None; |
4803 | | |
4804 | 155M | if (IsTypedefName) { |
4805 | | // For typedefs, we do not infer any nullability (the default), |
4806 | | // and we only complain about missing nullability specifiers on |
4807 | | // inner pointers. |
4808 | 2.41M | complainAboutMissingNullability = CAMN_InnerPointers; |
4809 | | |
4810 | 2.41M | if (T->canHaveNullability(/*ResultIfUnknown*/ false) && |
4811 | 2.41M | !T->getNullability()59.0k ) { |
4812 | | // Note that we allow but don't require nullability on dependent types. |
4813 | 57.2k | ++NumPointersRemaining; |
4814 | 57.2k | } |
4815 | | |
4816 | 2.97M | for (unsigned i = 0, n = D.getNumTypeObjects(); i != n; ++i564k ) { |
4817 | 564k | DeclaratorChunk &chunk = D.getTypeObject(i); |
4818 | 564k | switch (chunk.Kind) { |
4819 | 18.2k | case DeclaratorChunk::Array: |
4820 | 117k | case DeclaratorChunk::Function: |
4821 | 117k | case DeclaratorChunk::Pipe: |
4822 | 117k | break; |
4823 | | |
4824 | 10.4k | case DeclaratorChunk::BlockPointer: |
4825 | 10.7k | case DeclaratorChunk::MemberPointer: |
4826 | 10.7k | ++NumPointersRemaining; |
4827 | 10.7k | break; |
4828 | | |
4829 | 97.2k | case DeclaratorChunk::Paren: |
4830 | 129k | case DeclaratorChunk::Reference: |
4831 | 129k | continue; |
4832 | | |
4833 | 307k | case DeclaratorChunk::Pointer: |
4834 | 307k | ++NumPointersRemaining; |
4835 | 307k | continue; |
4836 | 564k | } |
4837 | 564k | } |
4838 | 153M | } else { |
4839 | 153M | bool isFunctionOrMethod = false; |
4840 | 153M | switch (auto context = state.getDeclarator().getContext()) { |
4841 | 976k | case DeclaratorContext::ObjCParameter: |
4842 | 1.63M | case DeclaratorContext::ObjCResult: |
4843 | 96.3M | case DeclaratorContext::Prototype: |
4844 | 96.3M | case DeclaratorContext::TrailingReturn: |
4845 | 96.3M | case DeclaratorContext::TrailingReturnVar: |
4846 | 96.3M | isFunctionOrMethod = true; |
4847 | 96.3M | [[fallthrough]]; |
4848 | | |
4849 | 101M | case DeclaratorContext::Member: |
4850 | 101M | if (state.getDeclarator().isObjCIvar() && !isFunctionOrMethod120k ) { |
4851 | 120k | complainAboutMissingNullability = CAMN_No; |
4852 | 120k | break; |
4853 | 120k | } |
4854 | | |
4855 | | // Weak properties are inferred to be nullable. |
4856 | 101M | if (state.getDeclarator().isObjCWeakProperty()) { |
4857 | | // Weak properties cannot be nonnull, and should not complain about |
4858 | | // missing nullable attributes during completeness checks. |
4859 | 1.04k | complainAboutMissingNullability = CAMN_No; |
4860 | 1.04k | if (inAssumeNonNullRegion) { |
4861 | 907 | inferNullability = NullabilityKind::Nullable; |
4862 | 907 | } |
4863 | 1.04k | break; |
4864 | 1.04k | } |
4865 | | |
4866 | 101M | [[fallthrough]];101M |
4867 | | |
4868 | 137M | case DeclaratorContext::File: |
4869 | 137M | case DeclaratorContext::KNRTypeList: { |
4870 | 137M | complainAboutMissingNullability = CAMN_Yes; |
4871 | | |
4872 | | // Nullability inference depends on the type and declarator. |
4873 | 137M | auto wrappingKind = PointerWrappingDeclaratorKind::None; |
4874 | 137M | switch (classifyPointerDeclarator(S, T, D, wrappingKind)) { |
4875 | 126M | case PointerDeclaratorKind::NonPointer: |
4876 | 126M | case PointerDeclaratorKind::MultiLevelPointer: |
4877 | | // Cannot infer nullability. |
4878 | 126M | break; |
4879 | | |
4880 | 10.9M | case PointerDeclaratorKind::SingleLevelPointer: |
4881 | | // Infer _Nonnull if we are in an assumes-nonnull region. |
4882 | 10.9M | if (inAssumeNonNullRegion) { |
4883 | 2.89M | complainAboutInferringWithinChunk = wrappingKind; |
4884 | 2.89M | inferNullability = NullabilityKind::NonNull; |
4885 | 2.89M | inferNullabilityCS = (context == DeclaratorContext::ObjCParameter || |
4886 | 2.89M | context == DeclaratorContext::ObjCResult2.22M ); |
4887 | 2.89M | } |
4888 | 10.9M | break; |
4889 | | |
4890 | 18.8k | case PointerDeclaratorKind::CFErrorRefPointer: |
4891 | 50.3k | case PointerDeclaratorKind::NSErrorPointerPointer: |
4892 | | // Within a function or method signature, infer _Nullable at both |
4893 | | // levels. |
4894 | 50.3k | if (isFunctionOrMethod && inAssumeNonNullRegion50.3k ) |
4895 | 45.2k | inferNullability = NullabilityKind::Nullable; |
4896 | 50.3k | break; |
4897 | | |
4898 | 265k | case PointerDeclaratorKind::MaybePointerToCFRef: |
4899 | 265k | if (isFunctionOrMethod) { |
4900 | | // On pointer-to-pointer parameters marked cf_returns_retained or |
4901 | | // cf_returns_not_retained, if the outer pointer is explicit then |
4902 | | // infer the inner pointer as _Nullable. |
4903 | 238k | auto hasCFReturnsAttr = |
4904 | 839k | [](const ParsedAttributesView &AttrList) -> bool { |
4905 | 839k | return AttrList.hasAttribute(ParsedAttr::AT_CFReturnsRetained) || |
4906 | 839k | AttrList.hasAttribute(ParsedAttr::AT_CFReturnsNotRetained)811k ; |
4907 | 839k | }; |
4908 | 238k | if (const auto *InnermostChunk = D.getInnermostNonParenChunk()) { |
4909 | 217k | if (hasCFReturnsAttr(D.getDeclarationAttributes()) || |
4910 | 217k | hasCFReturnsAttr(D.getAttributes()) || |
4911 | 217k | hasCFReturnsAttr(InnermostChunk->getAttrs())215k || |
4912 | 217k | hasCFReturnsAttr(D.getDeclSpec().getAttributes())189k ) { |
4913 | 28.1k | inferNullability = NullabilityKind::Nullable; |
4914 | 28.1k | inferNullabilityInnerOnly = true; |
4915 | 28.1k | } |
4916 | 217k | } |
4917 | 238k | } |
4918 | 265k | break; |
4919 | 137M | } |
4920 | 137M | break; |
4921 | 137M | } |
4922 | | |
4923 | 137M | case DeclaratorContext::ConversionId: |
4924 | 17.5k | complainAboutMissingNullability = CAMN_Yes; |
4925 | 17.5k | break; |
4926 | | |
4927 | 0 | case DeclaratorContext::AliasDecl: |
4928 | 0 | case DeclaratorContext::AliasTemplate: |
4929 | 1.54M | case DeclaratorContext::Block: |
4930 | 1.55M | case DeclaratorContext::BlockLiteral: |
4931 | 1.55M | case DeclaratorContext::Condition: |
4932 | 1.55M | case DeclaratorContext::CXXCatch: |
4933 | 1.58M | case DeclaratorContext::CXXNew: |
4934 | 1.76M | case DeclaratorContext::ForInit: |
4935 | 1.76M | case DeclaratorContext::SelectionInit: |
4936 | 1.77M | case DeclaratorContext::LambdaExpr: |
4937 | 1.78M | case DeclaratorContext::LambdaExprParameter: |
4938 | 1.78M | case DeclaratorContext::ObjCCatch: |
4939 | 2.19M | case DeclaratorContext::TemplateParam: |
4940 | 7.94M | case DeclaratorContext::TemplateArg: |
4941 | 8.11M | case DeclaratorContext::TemplateTypeArg: |
4942 | 15.2M | case DeclaratorContext::TypeName: |
4943 | 15.7M | case DeclaratorContext::FunctionalCast: |
4944 | 15.7M | case DeclaratorContext::RequiresExpr: |
4945 | 15.7M | case DeclaratorContext::Association: |
4946 | | // Don't infer in these contexts. |
4947 | 15.7M | break; |
4948 | 153M | } |
4949 | 153M | } |
4950 | | |
4951 | | // Local function that returns true if its argument looks like a va_list. |
4952 | 155M | auto isVaList = [&S](QualType T) -> bool { |
4953 | 2.68M | auto *typedefTy = T->getAs<TypedefType>(); |
4954 | 2.68M | if (!typedefTy) |
4955 | 78.6k | return false; |
4956 | 2.60M | TypedefDecl *vaListTypedef = S.Context.getBuiltinVaListDecl(); |
4957 | 2.89M | do { |
4958 | 2.89M | if (typedefTy->getDecl() == vaListTypedef) |
4959 | 5.96k | return true; |
4960 | 2.89M | if (auto *name = typedefTy->getDecl()->getIdentifier()) |
4961 | 2.89M | if (name->isStr("va_list")) |
4962 | 24.2k | return true; |
4963 | 2.86M | typedefTy = typedefTy->desugar()->getAs<TypedefType>(); |
4964 | 2.86M | } while (typedefTy); |
4965 | 2.57M | return false; |
4966 | 2.60M | }; |
4967 | | |
4968 | | // Local function that checks the nullability for a given pointer declarator. |
4969 | | // Returns true if _Nonnull was inferred. |
4970 | 155M | auto inferPointerNullability = |
4971 | 155M | [&](SimplePointerKind pointerKind, SourceLocation pointerLoc, |
4972 | 155M | SourceLocation pointerEndLoc, |
4973 | 155M | ParsedAttributesView &attrs, AttributePool &Pool) -> ParsedAttr * { |
4974 | | // We've seen a pointer. |
4975 | 12.5M | if (NumPointersRemaining > 0) |
4976 | 375k | --NumPointersRemaining; |
4977 | | |
4978 | | // If a nullability attribute is present, there's nothing to do. |
4979 | 12.5M | if (hasNullabilityAttr(attrs)) |
4980 | 530k | return nullptr; |
4981 | | |
4982 | | // If we're supposed to infer nullability, do so now. |
4983 | 11.9M | if (inferNullability && !inferNullabilityInnerOnlyComplete2.21M ) { |
4984 | 2.21M | ParsedAttr::Form form = |
4985 | 2.21M | inferNullabilityCS |
4986 | 2.21M | ? ParsedAttr::Form::ContextSensitiveKeyword()728k |
4987 | 2.21M | : ParsedAttr::Form::Keyword(false /*IsAlignAs*/, |
4988 | 1.49M | false /*IsRegularKeywordAttribute*/); |
4989 | 2.21M | ParsedAttr *nullabilityAttr = Pool.create( |
4990 | 2.21M | S.getNullabilityKeyword(*inferNullability), SourceRange(pointerLoc), |
4991 | 2.21M | nullptr, SourceLocation(), nullptr, 0, form); |
4992 | | |
4993 | 2.21M | attrs.addAtEnd(nullabilityAttr); |
4994 | | |
4995 | 2.21M | if (inferNullabilityCS) { |
4996 | 728k | state.getDeclarator().getMutableDeclSpec().getObjCQualifiers() |
4997 | 728k | ->setObjCDeclQualifier(ObjCDeclSpec::DQ_CSNullability); |
4998 | 728k | } |
4999 | | |
5000 | 2.21M | if (pointerLoc.isValid() && |
5001 | 2.21M | complainAboutInferringWithinChunk != |
5002 | 2.21M | PointerWrappingDeclaratorKind::None) { |
5003 | 46 | auto Diag = |
5004 | 46 | S.Diag(pointerLoc, diag::warn_nullability_inferred_on_nested_type); |
5005 | 46 | Diag << static_cast<int>(complainAboutInferringWithinChunk); |
5006 | 46 | fixItNullability(S, Diag, pointerLoc, NullabilityKind::NonNull); |
5007 | 46 | } |
5008 | | |
5009 | 2.21M | if (inferNullabilityInnerOnly) |
5010 | 23.8k | inferNullabilityInnerOnlyComplete = true; |
5011 | 2.21M | return nullabilityAttr; |
5012 | 2.21M | } |
5013 | | |
5014 | | // If we're supposed to complain about missing nullability, do so |
5015 | | // now if it's truly missing. |
5016 | 9.77M | switch (complainAboutMissingNullability) { |
5017 | 779k | case CAMN_No: |
5018 | 779k | break; |
5019 | | |
5020 | 375k | case CAMN_InnerPointers: |
5021 | 375k | if (NumPointersRemaining == 0) |
5022 | 351k | break; |
5023 | 375k | [[fallthrough]];23.3k |
5024 | | |
5025 | 8.63M | case CAMN_Yes: |
5026 | 8.63M | checkNullabilityConsistency(S, pointerKind, pointerLoc, pointerEndLoc); |
5027 | 9.77M | } |
5028 | 9.77M | return nullptr; |
5029 | 9.77M | }; |
5030 | | |
5031 | | // If the type itself could have nullability but does not, infer pointer |
5032 | | // nullability and perform consistency checking. |
5033 | 155M | if (S.CodeSynthesisContexts.empty()) { |
5034 | 155M | if (T->canHaveNullability(/*ResultIfUnknown*/ false) && |
5035 | 155M | !T->getNullability()3.10M ) { |
5036 | 2.62M | if (isVaList(T)) { |
5037 | | // Record that we've seen a pointer, but do nothing else. |
5038 | 544 | if (NumPointersRemaining > 0) |
5039 | 112 | --NumPointersRemaining; |
5040 | 2.61M | } else { |
5041 | 2.61M | SimplePointerKind pointerKind = SimplePointerKind::Pointer; |
5042 | 2.61M | if (T->isBlockPointerType()) |
5043 | 20.7k | pointerKind = SimplePointerKind::BlockPointer; |
5044 | 2.59M | else if (T->isMemberPointerType()) |
5045 | 1.23k | pointerKind = SimplePointerKind::MemberPointer; |
5046 | | |
5047 | 2.61M | if (auto *attr = inferPointerNullability( |
5048 | 2.61M | pointerKind, D.getDeclSpec().getTypeSpecTypeLoc(), |
5049 | 2.61M | D.getDeclSpec().getEndLoc(), |
5050 | 2.61M | D.getMutableDeclSpec().getAttributes(), |
5051 | 2.61M | D.getMutableDeclSpec().getAttributePool())) { |
5052 | 1.20M | T = state.getAttributedType( |
5053 | 1.20M | createNullabilityAttr(Context, *attr, *inferNullability), T, T); |
5054 | 1.20M | } |
5055 | 2.61M | } |
5056 | 2.62M | } |
5057 | | |
5058 | 155M | if (complainAboutMissingNullability == CAMN_Yes && T->isArrayType()137M && |
5059 | 155M | !T->getNullability()63.8k && !isVaList(T)62.7k && D.isPrototypeContext()33.0k && |
5060 | 155M | !hasOuterPointerLikeChunk(D, D.getNumTypeObjects())20.7k ) { |
5061 | 18.8k | checkNullabilityConsistency(S, SimplePointerKind::Array, |
5062 | 18.8k | D.getDeclSpec().getTypeSpecTypeLoc()); |
5063 | 18.8k | } |
5064 | 155M | } |
5065 | | |
5066 | 155M | bool ExpectNoDerefChunk = |
5067 | 155M | state.getCurrentAttributes().hasAttribute(ParsedAttr::AT_NoDeref); |
5068 | | |
5069 | | // Walk the DeclTypeInfo, building the recursive type as we go. |
5070 | | // DeclTypeInfos are ordered from the identifier out, which is |
5071 | | // opposite of what we want :). |
5072 | | |
5073 | | // Track if the produced type matches the structure of the declarator. |
5074 | | // This is used later to decide if we can fill `TypeLoc` from |
5075 | | // `DeclaratorChunk`s. E.g. it must be false if Clang recovers from |
5076 | | // an error by replacing the type with `int`. |
5077 | 155M | bool AreDeclaratorChunksValid = true; |
5078 | 205M | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i49.5M ) { |
5079 | 49.5M | unsigned chunkIndex = e - i - 1; |
5080 | 49.5M | state.setCurrentChunkIndex(chunkIndex); |
5081 | 49.5M | DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); |
5082 | 49.5M | IsQualifiedFunction &= DeclType.Kind == DeclaratorChunk::Paren; |
5083 | 49.5M | switch (DeclType.Kind) { |
5084 | 315k | case DeclaratorChunk::Paren: |
5085 | 315k | if (i == 0) |
5086 | 489 | warnAboutRedundantParens(S, D, T); |
5087 | 315k | T = S.BuildParenType(T); |
5088 | 315k | break; |
5089 | 61.4k | case DeclaratorChunk::BlockPointer: |
5090 | | // If blocks are disabled, emit an error. |
5091 | 61.4k | if (!LangOpts.Blocks) |
5092 | 7 | S.Diag(DeclType.Loc, diag::err_blocks_disable) << LangOpts.OpenCL; |
5093 | | |
5094 | | // Handle pointer nullability. |
5095 | 61.4k | inferPointerNullability(SimplePointerKind::BlockPointer, DeclType.Loc, |
5096 | 61.4k | DeclType.EndLoc, DeclType.getAttrs(), |
5097 | 61.4k | state.getDeclarator().getAttributePool()); |
5098 | | |
5099 | 61.4k | T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); |
5100 | 61.4k | if (DeclType.Cls.TypeQuals || LangOpts.OpenCL61.3k ) { |
5101 | | // OpenCL v2.0, s6.12.5 - Block variable declarations are implicitly |
5102 | | // qualified with const. |
5103 | 175 | if (LangOpts.OpenCL) |
5104 | 163 | DeclType.Cls.TypeQuals |= DeclSpec::TQ_const; |
5105 | 175 | T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); |
5106 | 175 | } |
5107 | 61.4k | break; |
5108 | 9.80M | case DeclaratorChunk::Pointer: |
5109 | | // Verify that we're not building a pointer to pointer to function with |
5110 | | // exception specification. |
5111 | 9.80M | if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)4.23M ) { |
5112 | 7 | S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); |
5113 | 7 | D.setInvalidType(true); |
5114 | | // Build the type anyway. |
5115 | 7 | } |
5116 | | |
5117 | | // Handle pointer nullability |
5118 | 9.80M | inferPointerNullability(SimplePointerKind::Pointer, DeclType.Loc, |
5119 | 9.80M | DeclType.EndLoc, DeclType.getAttrs(), |
5120 | 9.80M | state.getDeclarator().getAttributePool()); |
5121 | | |
5122 | 9.80M | if (LangOpts.ObjC && T->getAs<ObjCObjectType>()3.01M ) { |
5123 | 1.16M | T = Context.getObjCObjectPointerType(T); |
5124 | 1.16M | if (DeclType.Ptr.TypeQuals) |
5125 | 66.4k | T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); |
5126 | 1.16M | break; |
5127 | 1.16M | } |
5128 | | |
5129 | | // OpenCL v2.0 s6.9b - Pointer to image/sampler cannot be used. |
5130 | | // OpenCL v2.0 s6.13.16.1 - Pointer to pipe cannot be used. |
5131 | | // OpenCL v2.0 s6.12.5 - Pointers to Blocks are not allowed. |
5132 | 8.64M | if (LangOpts.OpenCL) { |
5133 | 48.3k | if (T->isImageType() || T->isSamplerT()48.3k || T->isPipeType()48.3k || |
5134 | 48.3k | T->isBlockPointerType()48.3k ) { |
5135 | 14 | S.Diag(D.getIdentifierLoc(), diag::err_opencl_pointer_to_type) << T; |
5136 | 14 | D.setInvalidType(true); |
5137 | 14 | } |
5138 | 48.3k | } |
5139 | | |
5140 | 8.64M | T = S.BuildPointerType(T, DeclType.Loc, Name); |
5141 | 8.64M | if (DeclType.Ptr.TypeQuals) |
5142 | 83.4k | T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); |
5143 | 8.64M | break; |
5144 | 2.03M | case DeclaratorChunk::Reference: { |
5145 | | // Verify that we're not building a reference to pointer to function with |
5146 | | // exception specification. |
5147 | 2.03M | if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { |
5148 | 0 | S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); |
5149 | 0 | D.setInvalidType(true); |
5150 | | // Build the type anyway. |
5151 | 0 | } |
5152 | 2.03M | T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); |
5153 | | |
5154 | 2.03M | if (DeclType.Ref.HasRestrict) |
5155 | 15 | T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); |
5156 | 2.03M | break; |
5157 | 9.80M | } |
5158 | 352k | case DeclaratorChunk::Array: { |
5159 | | // Verify that we're not building an array of pointers to function with |
5160 | | // exception specification. |
5161 | 352k | if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)174k ) { |
5162 | 0 | S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); |
5163 | 0 | D.setInvalidType(true); |
5164 | | // Build the type anyway. |
5165 | 0 | } |
5166 | 352k | DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; |
5167 | 352k | Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); |
5168 | 352k | ArraySizeModifier ASM; |
5169 | | |
5170 | | // Microsoft property fields can have multiple sizeless array chunks |
5171 | | // (i.e. int x[][][]). Skip all of these except one to avoid creating |
5172 | | // bad incomplete array types. |
5173 | 352k | if (chunkIndex != 0 && !ArraySize12.9k && |
5174 | 352k | D.getDeclSpec().getAttributes().hasMSPropertyAttr()3.13k ) { |
5175 | | // This is a sizeless chunk. If the next is also, skip this one. |
5176 | 20 | DeclaratorChunk &NextDeclType = D.getTypeObject(chunkIndex - 1); |
5177 | 20 | if (NextDeclType.Kind == DeclaratorChunk::Array && |
5178 | 20 | !NextDeclType.Arr.NumElts) |
5179 | 20 | break; |
5180 | 20 | } |
5181 | | |
5182 | 352k | if (ATI.isStar) |
5183 | 40 | ASM = ArraySizeModifier::Star; |
5184 | 352k | else if (ATI.hasStatic) |
5185 | 58 | ASM = ArraySizeModifier::Static; |
5186 | 352k | else |
5187 | 352k | ASM = ArraySizeModifier::Normal; |
5188 | 352k | if (ASM == ArraySizeModifier::Star && !D.isPrototypeContext()40 ) { |
5189 | | // FIXME: This check isn't quite right: it allows star in prototypes |
5190 | | // for function definitions, and disallows some edge cases detailed |
5191 | | // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html |
5192 | 6 | S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); |
5193 | 6 | ASM = ArraySizeModifier::Normal; |
5194 | 6 | D.setInvalidType(true); |
5195 | 6 | } |
5196 | | |
5197 | | // C99 6.7.5.2p1: The optional type qualifiers and the keyword static |
5198 | | // shall appear only in a declaration of a function parameter with an |
5199 | | // array type, ... |
5200 | 352k | if (ASM == ArraySizeModifier::Static || ATI.TypeQuals352k ) { |
5201 | 103 | if (!(D.isPrototypeContext() || |
5202 | 103 | D.getContext() == DeclaratorContext::KNRTypeList7 )) { |
5203 | 6 | S.Diag(DeclType.Loc, diag::err_array_static_outside_prototype) |
5204 | 6 | << (ASM == ArraySizeModifier::Static ? "'static'"3 |
5205 | 6 | : "type qualifier"3 ); |
5206 | | // Remove the 'static' and the type qualifiers. |
5207 | 6 | if (ASM == ArraySizeModifier::Static) |
5208 | 3 | ASM = ArraySizeModifier::Normal; |
5209 | 6 | ATI.TypeQuals = 0; |
5210 | 6 | D.setInvalidType(true); |
5211 | 6 | } |
5212 | | |
5213 | | // C99 6.7.5.2p1: ... and then only in the outermost array type |
5214 | | // derivation. |
5215 | 103 | if (hasOuterPointerLikeChunk(D, chunkIndex)) { |
5216 | 3 | S.Diag(DeclType.Loc, diag::err_array_static_not_outermost) |
5217 | 3 | << (ASM == ArraySizeModifier::Static ? "'static'"2 |
5218 | 3 | : "type qualifier"1 ); |
5219 | 3 | if (ASM == ArraySizeModifier::Static) |
5220 | 2 | ASM = ArraySizeModifier::Normal; |
5221 | 3 | ATI.TypeQuals = 0; |
5222 | 3 | D.setInvalidType(true); |
5223 | 3 | } |
5224 | 103 | } |
5225 | | |
5226 | | // Array parameters can be marked nullable as well, although it's not |
5227 | | // necessary if they're marked 'static'. |
5228 | 352k | if (complainAboutMissingNullability == CAMN_Yes && |
5229 | 352k | !hasNullabilityAttr(DeclType.getAttrs())262k && |
5230 | 352k | ASM != ArraySizeModifier::Static250k && D.isPrototypeContext()250k && |
5231 | 352k | !hasOuterPointerLikeChunk(D, chunkIndex)31.8k ) { |
5232 | 27.3k | checkNullabilityConsistency(S, SimplePointerKind::Array, DeclType.Loc); |
5233 | 27.3k | } |
5234 | | |
5235 | 352k | T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, |
5236 | 352k | SourceRange(DeclType.Loc, DeclType.EndLoc), Name); |
5237 | 352k | break; |
5238 | 352k | } |
5239 | 36.9M | case DeclaratorChunk::Function: { |
5240 | | // If the function declarator has a prototype (i.e. it is not () and |
5241 | | // does not have a K&R-style identifier list), then the arguments are part |
5242 | | // of the type, otherwise the argument list is (). |
5243 | 36.9M | DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; |
5244 | 36.9M | IsQualifiedFunction = |
5245 | 36.9M | FTI.hasMethodTypeQualifiers() || FTI.hasRefQualifier()36.4M ; |
5246 | | |
5247 | | // Check for auto functions and trailing return type and adjust the |
5248 | | // return type accordingly. |
5249 | 36.9M | if (!D.isInvalidType()) { |
5250 | | // trailing-return-type is only required if we're declaring a function, |
5251 | | // and not, for instance, a pointer to a function. |
5252 | 36.9M | if (D.getDeclSpec().hasAutoTypeSpec() && |
5253 | 36.9M | !FTI.hasTrailingReturnType()14.7k && chunkIndex == 03.96k ) { |
5254 | 3.88k | if (!S.getLangOpts().CPlusPlus14) { |
5255 | 4 | S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), |
5256 | 4 | D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto |
5257 | 4 | ? diag::err_auto_missing_trailing_return3 |
5258 | 4 | : diag::err_deduced_return_type1 ); |
5259 | 4 | T = Context.IntTy; |
5260 | 4 | D.setInvalidType(true); |
5261 | 4 | AreDeclaratorChunksValid = false; |
5262 | 3.88k | } else { |
5263 | 3.88k | S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), |
5264 | 3.88k | diag::warn_cxx11_compat_deduced_return_type); |
5265 | 3.88k | } |
5266 | 36.9M | } else if (FTI.hasTrailingReturnType()) { |
5267 | | // T must be exactly 'auto' at this point. See CWG issue 681. |
5268 | 13.6k | if (isa<ParenType>(T)) { |
5269 | 3 | S.Diag(D.getBeginLoc(), diag::err_trailing_return_in_parens) |
5270 | 3 | << T << D.getSourceRange(); |
5271 | 3 | D.setInvalidType(true); |
5272 | | // FIXME: recover and fill decls in `TypeLoc`s. |
5273 | 3 | AreDeclaratorChunksValid = false; |
5274 | 13.6k | } else if (D.getName().getKind() == |
5275 | 13.6k | UnqualifiedIdKind::IK_DeductionGuideName) { |
5276 | 1.60k | if (T != Context.DependentTy) { |
5277 | 4 | S.Diag(D.getDeclSpec().getBeginLoc(), |
5278 | 4 | diag::err_deduction_guide_with_complex_decl) |
5279 | 4 | << D.getSourceRange(); |
5280 | 4 | D.setInvalidType(true); |
5281 | | // FIXME: recover and fill decls in `TypeLoc`s. |
5282 | 4 | AreDeclaratorChunksValid = false; |
5283 | 4 | } |
5284 | 12.0k | } else if (D.getContext() != DeclaratorContext::LambdaExpr && |
5285 | 12.0k | (10.7k T.hasQualifiers()10.7k || !isa<AutoType>(T)10.7k || |
5286 | 10.7k | cast<AutoType>(T)->getKeyword() != |
5287 | 10.7k | AutoTypeKeyword::Auto || |
5288 | 10.7k | cast<AutoType>(T)->isConstrained()10.7k )) { |
5289 | 14 | S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), |
5290 | 14 | diag::err_trailing_return_without_auto) |
5291 | 14 | << T << D.getDeclSpec().getSourceRange(); |
5292 | 14 | D.setInvalidType(true); |
5293 | | // FIXME: recover and fill decls in `TypeLoc`s. |
5294 | 14 | AreDeclaratorChunksValid = false; |
5295 | 14 | } |
5296 | 13.6k | T = S.GetTypeFromParser(FTI.getTrailingReturnType(), &TInfo); |
5297 | 13.6k | if (T.isNull()) { |
5298 | | // An error occurred parsing the trailing return type. |
5299 | 70 | T = Context.IntTy; |
5300 | 70 | D.setInvalidType(true); |
5301 | 13.5k | } else if (AutoType *Auto = T->getContainedAutoType()) { |
5302 | | // If the trailing return type contains an `auto`, we may need to |
5303 | | // invent a template parameter for it, for cases like |
5304 | | // `auto f() -> C auto` or `[](auto (*p) -> auto) {}`. |
5305 | 253 | InventedTemplateParameterInfo *InventedParamInfo = nullptr; |
5306 | 253 | if (D.getContext() == DeclaratorContext::Prototype) |
5307 | 0 | InventedParamInfo = &S.InventedParameterInfos.back(); |
5308 | 253 | else if (D.getContext() == DeclaratorContext::LambdaExprParameter) |
5309 | 8 | InventedParamInfo = S.getCurLambda(); |
5310 | 253 | if (InventedParamInfo) { |
5311 | 8 | std::tie(T, TInfo) = InventTemplateParameter( |
5312 | 8 | state, T, TInfo, Auto, *InventedParamInfo); |
5313 | 8 | } |
5314 | 253 | } |
5315 | 36.9M | } else { |
5316 | | // This function type is not the type of the entity being declared, |
5317 | | // so checking the 'auto' is not the responsibility of this chunk. |
5318 | 36.9M | } |
5319 | 36.9M | } |
5320 | | |
5321 | | // C99 6.7.5.3p1: The return type may not be a function or array type. |
5322 | | // For conversion functions, we'll diagnose this particular error later. |
5323 | 36.9M | if (!D.isInvalidType() && (36.9M T->isArrayType()36.9M || T->isFunctionType()36.9M ) && |
5324 | 36.9M | (D.getName().getKind() != |
5325 | 66 | UnqualifiedIdKind::IK_ConversionFunctionId)) { |
5326 | 29 | unsigned diagID = diag::err_func_returning_array_function; |
5327 | | // Last processing chunk in block context means this function chunk |
5328 | | // represents the block. |
5329 | 29 | if (chunkIndex == 0 && |
5330 | 29 | D.getContext() == DeclaratorContext::BlockLiteral28 ) |
5331 | 1 | diagID = diag::err_block_returning_array_function; |
5332 | 29 | S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; |
5333 | 29 | T = Context.IntTy; |
5334 | 29 | D.setInvalidType(true); |
5335 | 29 | AreDeclaratorChunksValid = false; |
5336 | 29 | } |
5337 | | |
5338 | | // Do not allow returning half FP value. |
5339 | | // FIXME: This really should be in BuildFunctionType. |
5340 | 36.9M | if (T->isHalfType()) { |
5341 | 53.1k | if (S.getLangOpts().OpenCL) { |
5342 | 4.81k | if (!S.getOpenCLOptions().isAvailableOption("cl_khr_fp16", |
5343 | 4.81k | S.getLangOpts())) { |
5344 | 3 | S.Diag(D.getIdentifierLoc(), diag::err_opencl_invalid_return) |
5345 | 3 | << T << 0 /*pointer hint*/; |
5346 | 3 | D.setInvalidType(true); |
5347 | 3 | } |
5348 | 48.3k | } else if (!S.getLangOpts().NativeHalfArgsAndReturns && |
5349 | 48.3k | !S.Context.getTargetInfo().allowHalfArgsAndReturns()47.9k ) { |
5350 | 4 | S.Diag(D.getIdentifierLoc(), |
5351 | 4 | diag::err_parameters_retval_cannot_have_fp16_type) << 1; |
5352 | 4 | D.setInvalidType(true); |
5353 | 4 | } |
5354 | 53.1k | } |
5355 | | |
5356 | 36.9M | if (LangOpts.OpenCL) { |
5357 | | // OpenCL v2.0 s6.12.5 - A block cannot be the return value of a |
5358 | | // function. |
5359 | 306k | if (T->isBlockPointerType() || T->isImageType()306k || T->isSamplerT()306k || |
5360 | 306k | T->isPipeType()306k ) { |
5361 | 20 | S.Diag(D.getIdentifierLoc(), diag::err_opencl_invalid_return) |
5362 | 20 | << T << 1 /*hint off*/; |
5363 | 20 | D.setInvalidType(true); |
5364 | 20 | } |
5365 | | // OpenCL doesn't support variadic functions and blocks |
5366 | | // (s6.9.e and s6.12.5 OpenCL v2.0) except for printf. |
5367 | | // We also allow here any toolchain reserved identifiers. |
5368 | 306k | if (FTI.isVariadic && |
5369 | 306k | !S.getOpenCLOptions().isAvailableOption( |
5370 | 111 | "__cl_clang_variadic_functions", S.getLangOpts()) && |
5371 | 306k | !(104 D.getIdentifier()104 && |
5372 | 104 | (102 (102 D.getIdentifier()->getName() == "printf"102 && |
5373 | 102 | LangOpts.getOpenCLCompatibleVersion() >= 12092 ) || |
5374 | 102 | D.getIdentifier()->getName().startswith("__")12 ))) { |
5375 | 12 | S.Diag(D.getIdentifierLoc(), diag::err_opencl_variadic_function); |
5376 | 12 | D.setInvalidType(true); |
5377 | 12 | } |
5378 | 306k | } |
5379 | | |
5380 | | // Methods cannot return interface types. All ObjC objects are |
5381 | | // passed by reference. |
5382 | 36.9M | if (T->isObjCObjectType()) { |
5383 | 11 | SourceLocation DiagLoc, FixitLoc; |
5384 | 11 | if (TInfo) { |
5385 | 2 | DiagLoc = TInfo->getTypeLoc().getBeginLoc(); |
5386 | 2 | FixitLoc = S.getLocForEndOfToken(TInfo->getTypeLoc().getEndLoc()); |
5387 | 9 | } else { |
5388 | 9 | DiagLoc = D.getDeclSpec().getTypeSpecTypeLoc(); |
5389 | 9 | FixitLoc = S.getLocForEndOfToken(D.getDeclSpec().getEndLoc()); |
5390 | 9 | } |
5391 | 11 | S.Diag(DiagLoc, diag::err_object_cannot_be_passed_returned_by_value) |
5392 | 11 | << 0 << T |
5393 | 11 | << FixItHint::CreateInsertion(FixitLoc, "*"); |
5394 | | |
5395 | 11 | T = Context.getObjCObjectPointerType(T); |
5396 | 11 | if (TInfo) { |
5397 | 2 | TypeLocBuilder TLB; |
5398 | 2 | TLB.pushFullCopy(TInfo->getTypeLoc()); |
5399 | 2 | ObjCObjectPointerTypeLoc TLoc = TLB.push<ObjCObjectPointerTypeLoc>(T); |
5400 | 2 | TLoc.setStarLoc(FixitLoc); |
5401 | 2 | TInfo = TLB.getTypeSourceInfo(Context, T); |
5402 | 9 | } else { |
5403 | 9 | AreDeclaratorChunksValid = false; |
5404 | 9 | } |
5405 | | |
5406 | 11 | D.setInvalidType(true); |
5407 | 11 | } |
5408 | | |
5409 | | // cv-qualifiers on return types are pointless except when the type is a |
5410 | | // class type in C++. |
5411 | 36.9M | if ((T.getCVRQualifiers() || T->isAtomicType()36.9M ) && |
5412 | 36.9M | !(462 S.getLangOpts().CPlusPlus462 && |
5413 | 462 | (366 T->isDependentType()366 || T->isRecordType()357 ))) { |
5414 | 389 | if (T->isVoidType() && !S.getLangOpts().CPlusPlus34 && |
5415 | 389 | D.getFunctionDefinitionKind() == |
5416 | 15 | FunctionDefinitionKind::Definition) { |
5417 | | // [6.9.1/3] qualified void return is invalid on a C |
5418 | | // function definition. Apparently ok on declarations and |
5419 | | // in C++ though (!) |
5420 | 12 | S.Diag(DeclType.Loc, diag::err_func_returning_qualified_void) << T; |
5421 | 12 | } else |
5422 | 377 | diagnoseRedundantReturnTypeQualifiers(S, T, D, chunkIndex); |
5423 | | |
5424 | | // C++2a [dcl.fct]p12: |
5425 | | // A volatile-qualified return type is deprecated |
5426 | 389 | if (T.isVolatileQualified() && S.getLangOpts().CPlusPlus2089 ) |
5427 | 6 | S.Diag(DeclType.Loc, diag::warn_deprecated_volatile_return) << T; |
5428 | 389 | } |
5429 | | |
5430 | | // Objective-C ARC ownership qualifiers are ignored on the function |
5431 | | // return type (by type canonicalization). Complain if this attribute |
5432 | | // was written here. |
5433 | 36.9M | if (T.getQualifiers().hasObjCLifetime()) { |
5434 | 19 | SourceLocation AttrLoc; |
5435 | 19 | if (chunkIndex + 1 < D.getNumTypeObjects()) { |
5436 | 6 | DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); |
5437 | 6 | for (const ParsedAttr &AL : ReturnTypeChunk.getAttrs()) { |
5438 | 6 | if (AL.getKind() == ParsedAttr::AT_ObjCOwnership) { |
5439 | 6 | AttrLoc = AL.getLoc(); |
5440 | 6 | break; |
5441 | 6 | } |
5442 | 6 | } |
5443 | 6 | } |
5444 | 19 | if (AttrLoc.isInvalid()) { |
5445 | 13 | for (const ParsedAttr &AL : D.getDeclSpec().getAttributes()) { |
5446 | 9 | if (AL.getKind() == ParsedAttr::AT_ObjCOwnership) { |
5447 | 9 | AttrLoc = AL.getLoc(); |
5448 | 9 | break; |
5449 | 9 | } |
5450 | 9 | } |
5451 | 13 | } |
5452 | | |
5453 | 19 | if (AttrLoc.isValid()) { |
5454 | | // The ownership attributes are almost always written via |
5455 | | // the predefined |
5456 | | // __strong/__weak/__autoreleasing/__unsafe_unretained. |
5457 | 15 | if (AttrLoc.isMacroID()) |
5458 | 15 | AttrLoc = |
5459 | 15 | S.SourceMgr.getImmediateExpansionRange(AttrLoc).getBegin(); |
5460 | | |
5461 | 15 | S.Diag(AttrLoc, diag::warn_arc_lifetime_result_type) |
5462 | 15 | << T.getQualifiers().getObjCLifetime(); |
5463 | 15 | } |
5464 | 19 | } |
5465 | | |
5466 | 36.9M | if (LangOpts.CPlusPlus && D.getDeclSpec().hasTagDefinition()16.3M ) { |
5467 | | // C++ [dcl.fct]p6: |
5468 | | // Types shall not be defined in return or parameter types. |
5469 | 2 | TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); |
5470 | 2 | S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) |
5471 | 2 | << Context.getTypeDeclType(Tag); |
5472 | 2 | } |
5473 | | |
5474 | | // Exception specs are not allowed in typedefs. Complain, but add it |
5475 | | // anyway. |
5476 | 36.9M | if (IsTypedefName && FTI.getExceptionSpecType()98.7k && !LangOpts.CPlusPlus1722 ) |
5477 | 4 | S.Diag(FTI.getExceptionSpecLocBeg(), |
5478 | 4 | diag::err_exception_spec_in_typedef) |
5479 | 4 | << (D.getContext() == DeclaratorContext::AliasDecl || |
5480 | 4 | D.getContext() == DeclaratorContext::AliasTemplate3 ); |
5481 | | |
5482 | | // If we see "T var();" or "T var(T());" at block scope, it is probably |
5483 | | // an attempt to initialize a variable, not a function declaration. |
5484 | 36.9M | if (FTI.isAmbiguous) |
5485 | 18.8k | warnAboutAmbiguousFunction(S, D, DeclType, T); |
5486 | | |
5487 | 36.9M | FunctionType::ExtInfo EI( |
5488 | 36.9M | getCCForDeclaratorChunk(S, D, DeclType.getAttrs(), FTI, chunkIndex)); |
5489 | | |
5490 | | // OpenCL disallows functions without a prototype, but it doesn't enforce |
5491 | | // strict prototypes as in C23 because it allows a function definition to |
5492 | | // have an identifier list. See OpenCL 3.0 6.11/g for more details. |
5493 | 36.9M | if (!FTI.NumParams && !FTI.isVariadic801k && |
5494 | 36.9M | !LangOpts.requiresStrictPrototypes()789k && !LangOpts.OpenCL11.0k ) { |
5495 | | // Simple void foo(), where the incoming T is the result type. |
5496 | 10.2k | T = Context.getFunctionNoProtoType(T, EI); |
5497 | 36.9M | } else { |
5498 | | // We allow a zero-parameter variadic function in C if the |
5499 | | // function is marked with the "overloadable" attribute. Scan |
5500 | | // for this attribute now. We also allow it in C23 per WG14 N2975. |
5501 | 36.9M | if (!FTI.NumParams && FTI.isVariadic791k && !LangOpts.CPlusPlus12.0k ) { |
5502 | 18 | if (LangOpts.C23) |
5503 | 2 | S.Diag(FTI.getEllipsisLoc(), |
5504 | 2 | diag::warn_c17_compat_ellipsis_only_parameter); |
5505 | 16 | else if (!D.getDeclarationAttributes().hasAttribute( |
5506 | 16 | ParsedAttr::AT_Overloadable) && |
5507 | 16 | !D.getAttributes().hasAttribute( |
5508 | 15 | ParsedAttr::AT_Overloadable) && |
5509 | 16 | !D.getDeclSpec().getAttributes().hasAttribute( |
5510 | 4 | ParsedAttr::AT_Overloadable)) |
5511 | 3 | S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_param); |
5512 | 18 | } |
5513 | | |
5514 | 36.9M | if (FTI.NumParams && FTI.Params[0].Param == nullptr36.1M ) { |
5515 | | // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function |
5516 | | // definition. |
5517 | 3 | S.Diag(FTI.Params[0].IdentLoc, |
5518 | 3 | diag::err_ident_list_in_fn_declaration); |
5519 | 3 | D.setInvalidType(true); |
5520 | | // Recover by creating a K&R-style function type, if possible. |
5521 | 3 | T = (!LangOpts.requiresStrictPrototypes() && !LangOpts.OpenCL) |
5522 | 3 | ? Context.getFunctionNoProtoType(T, EI) |
5523 | 3 | : Context.IntTy0 ; |
5524 | 3 | AreDeclaratorChunksValid = false; |
5525 | 3 | break; |
5526 | 3 | } |
5527 | | |
5528 | 36.9M | FunctionProtoType::ExtProtoInfo EPI; |
5529 | 36.9M | EPI.ExtInfo = EI; |
5530 | 36.9M | EPI.Variadic = FTI.isVariadic; |
5531 | 36.9M | EPI.EllipsisLoc = FTI.getEllipsisLoc(); |
5532 | 36.9M | EPI.HasTrailingReturn = FTI.hasTrailingReturnType(); |
5533 | 36.9M | EPI.TypeQuals.addCVRUQualifiers( |
5534 | 36.9M | FTI.MethodQualifiers ? FTI.MethodQualifiers->getTypeQualifiers()584k |
5535 | 36.9M | : 036.3M ); |
5536 | 36.9M | EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None36.9M |
5537 | 36.9M | : FTI.RefQualifierIsLValueRef21.3k ? RQ_LValue10.7k |
5538 | 21.3k | : RQ_RValue10.6k ; |
5539 | | |
5540 | | // Otherwise, we have a function with a parameter list that is |
5541 | | // potentially variadic. |
5542 | 36.9M | SmallVector<QualType, 16> ParamTys; |
5543 | 36.9M | ParamTys.reserve(FTI.NumParams); |
5544 | | |
5545 | 36.9M | SmallVector<FunctionProtoType::ExtParameterInfo, 16> |
5546 | 36.9M | ExtParameterInfos(FTI.NumParams); |
5547 | 36.9M | bool HasAnyInterestingExtParameterInfos = false; |
5548 | | |
5549 | 131M | for (unsigned i = 0, e = FTI.NumParams; i != e; ++i94.3M ) { |
5550 | 94.7M | ParmVarDecl *Param = cast<ParmVarDecl>(FTI.Params[i].Param); |
5551 | 94.7M | QualType ParamTy = Param->getType(); |
5552 | 94.7M | assert(!ParamTy.isNull() && "Couldn't parse type?"); |
5553 | | |
5554 | | // Look for 'void'. void is allowed only as a single parameter to a |
5555 | | // function with no other parameters (C99 6.7.5.3p10). We record |
5556 | | // int(void) as a FunctionProtoType with an empty parameter list. |
5557 | 94.7M | if (ParamTy->isVoidType()) { |
5558 | | // If this is something like 'float(int, void)', reject it. 'void' |
5559 | | // is an incomplete type (C99 6.2.5p19) and function decls cannot |
5560 | | // have parameters of incomplete type. |
5561 | 319k | if (FTI.NumParams != 1 || FTI.isVariadic319k ) { |
5562 | 18 | S.Diag(FTI.Params[i].IdentLoc, diag::err_void_only_param); |
5563 | 18 | ParamTy = Context.IntTy; |
5564 | 18 | Param->setType(ParamTy); |
5565 | 319k | } else if (FTI.Params[i].Ident) { |
5566 | | // Reject, but continue to parse 'int(void abc)'. |
5567 | 12 | S.Diag(FTI.Params[i].IdentLoc, diag::err_param_with_void_type); |
5568 | 12 | ParamTy = Context.IntTy; |
5569 | 12 | Param->setType(ParamTy); |
5570 | 319k | } else { |
5571 | | // Reject, but continue to parse 'float(const void)'. |
5572 | 319k | if (ParamTy.hasQualifiers()) |
5573 | 37 | S.Diag(DeclType.Loc, diag::err_void_param_qualified); |
5574 | | |
5575 | | // Do not add 'void' to the list. |
5576 | 319k | break; |
5577 | 319k | } |
5578 | 94.3M | } else if (ParamTy->isHalfType()) { |
5579 | | // Disallow half FP parameters. |
5580 | | // FIXME: This really should be in BuildFunctionType. |
5581 | 419k | if (S.getLangOpts().OpenCL) { |
5582 | 8.38k | if (!S.getOpenCLOptions().isAvailableOption("cl_khr_fp16", |
5583 | 8.38k | S.getLangOpts())) { |
5584 | 7 | S.Diag(Param->getLocation(), diag::err_opencl_invalid_param) |
5585 | 7 | << ParamTy << 0; |
5586 | 7 | D.setInvalidType(); |
5587 | 7 | Param->setInvalidDecl(); |
5588 | 7 | } |
5589 | 411k | } else if (!S.getLangOpts().NativeHalfArgsAndReturns && |
5590 | 411k | !S.Context.getTargetInfo().allowHalfArgsAndReturns()410k ) { |
5591 | 5 | S.Diag(Param->getLocation(), |
5592 | 5 | diag::err_parameters_retval_cannot_have_fp16_type) << 0; |
5593 | 5 | D.setInvalidType(); |
5594 | 5 | } |
5595 | 93.9M | } else if (!FTI.hasPrototype) { |
5596 | 192 | if (Context.isPromotableIntegerType(ParamTy)) { |
5597 | 26 | ParamTy = Context.getPromotedIntegerType(ParamTy); |
5598 | 26 | Param->setKNRPromoted(true); |
5599 | 166 | } else if (const BuiltinType *BTy = ParamTy->getAs<BuiltinType>()) { |
5600 | 137 | if (BTy->getKind() == BuiltinType::Float) { |
5601 | 16 | ParamTy = Context.DoubleTy; |
5602 | 16 | Param->setKNRPromoted(true); |
5603 | 16 | } |
5604 | 137 | } |
5605 | 93.9M | } else if (S.getLangOpts().OpenCL && ParamTy->isBlockPointerType()460k ) { |
5606 | | // OpenCL 2.0 s6.12.5: A block cannot be a parameter of a function. |
5607 | 7 | S.Diag(Param->getLocation(), diag::err_opencl_invalid_param) |
5608 | 7 | << ParamTy << 1 /*hint off*/; |
5609 | 7 | D.setInvalidType(); |
5610 | 7 | } |
5611 | | |
5612 | 94.3M | if (LangOpts.ObjCAutoRefCount && Param->hasAttr<NSConsumedAttr>()117k ) { |
5613 | 78 | ExtParameterInfos[i] = ExtParameterInfos[i].withIsConsumed(true); |
5614 | 78 | HasAnyInterestingExtParameterInfos = true; |
5615 | 78 | } |
5616 | | |
5617 | 94.3M | if (auto attr = Param->getAttr<ParameterABIAttr>()) { |
5618 | 324 | ExtParameterInfos[i] = |
5619 | 324 | ExtParameterInfos[i].withABI(attr->getABI()); |
5620 | 324 | HasAnyInterestingExtParameterInfos = true; |
5621 | 324 | } |
5622 | | |
5623 | 94.3M | if (Param->hasAttr<PassObjectSizeAttr>()) { |
5624 | 128 | ExtParameterInfos[i] = ExtParameterInfos[i].withHasPassObjectSize(); |
5625 | 128 | HasAnyInterestingExtParameterInfos = true; |
5626 | 128 | } |
5627 | | |
5628 | 94.3M | if (Param->hasAttr<NoEscapeAttr>()) { |
5629 | 8.42k | ExtParameterInfos[i] = ExtParameterInfos[i].withIsNoEscape(true); |
5630 | 8.42k | HasAnyInterestingExtParameterInfos = true; |
5631 | 8.42k | } |
5632 | | |
5633 | 94.3M | ParamTys.push_back(ParamTy); |
5634 | 94.3M | } |
5635 | | |
5636 | 36.9M | if (HasAnyInterestingExtParameterInfos) { |
5637 | 8.86k | EPI.ExtParameterInfos = ExtParameterInfos.data(); |
5638 | 8.86k | checkExtParameterInfos(S, ParamTys, EPI, |
5639 | 8.86k | [&](unsigned i) { return FTI.Params[i].Param->getLocation(); }18 ); |
5640 | 8.86k | } |
5641 | | |
5642 | 36.9M | SmallVector<QualType, 4> Exceptions; |
5643 | 36.9M | SmallVector<ParsedType, 2> DynamicExceptions; |
5644 | 36.9M | SmallVector<SourceRange, 2> DynamicExceptionRanges; |
5645 | 36.9M | Expr *NoexceptExpr = nullptr; |
5646 | | |
5647 | 36.9M | if (FTI.getExceptionSpecType() == EST_Dynamic) { |
5648 | | // FIXME: It's rather inefficient to have to split into two vectors |
5649 | | // here. |
5650 | 320 | unsigned N = FTI.getNumExceptions(); |
5651 | 320 | DynamicExceptions.reserve(N); |
5652 | 320 | DynamicExceptionRanges.reserve(N); |
5653 | 703 | for (unsigned I = 0; I != N; ++I383 ) { |
5654 | 383 | DynamicExceptions.push_back(FTI.Exceptions[I].Ty); |
5655 | 383 | DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); |
5656 | 383 | } |
5657 | 36.9M | } else if (isComputedNoexcept(FTI.getExceptionSpecType())) { |
5658 | 23.5k | NoexceptExpr = FTI.NoexceptExpr; |
5659 | 23.5k | } |
5660 | | |
5661 | 36.9M | S.checkExceptionSpecification(D.isFunctionDeclarationContext(), |
5662 | 36.9M | FTI.getExceptionSpecType(), |
5663 | 36.9M | DynamicExceptions, |
5664 | 36.9M | DynamicExceptionRanges, |
5665 | 36.9M | NoexceptExpr, |
5666 | 36.9M | Exceptions, |
5667 | 36.9M | EPI.ExceptionSpec); |
5668 | | |
5669 | | // FIXME: Set address space from attrs for C++ mode here. |
5670 | | // OpenCLCPlusPlus: A class member function has an address space. |
5671 | 36.9M | auto IsClassMember = [&]() { |
5672 | 27.4k | return (!state.getDeclarator().getCXXScopeSpec().isEmpty() && |
5673 | 27.4k | state.getDeclarator() |
5674 | 10 | .getCXXScopeSpec() |
5675 | 10 | .getScopeRep() |
5676 | 10 | ->getKind() == NestedNameSpecifier::TypeSpec) || |
5677 | 27.4k | state.getDeclarator().getContext() == |
5678 | 27.4k | DeclaratorContext::Member || |
5679 | 27.4k | state.getDeclarator().getContext() == |
5680 | 27.2k | DeclaratorContext::LambdaExpr; |
5681 | 27.4k | }; |
5682 | | |
5683 | 36.9M | if (state.getSema().getLangOpts().OpenCLCPlusPlus && IsClassMember()27.4k ) { |
5684 | 160 | LangAS ASIdx = LangAS::Default; |
5685 | | // Take address space attr if any and mark as invalid to avoid adding |
5686 | | // them later while creating QualType. |
5687 | 160 | if (FTI.MethodQualifiers) |
5688 | 73 | for (ParsedAttr &attr : FTI.MethodQualifiers->getAttributes()) { |
5689 | 61 | LangAS ASIdxNew = attr.asOpenCLLangAS(); |
5690 | 61 | if (DiagnoseMultipleAddrSpaceAttributes(S, ASIdx, ASIdxNew, |
5691 | 61 | attr.getLoc())) |
5692 | 2 | D.setInvalidType(true); |
5693 | 59 | else |
5694 | 59 | ASIdx = ASIdxNew; |
5695 | 61 | } |
5696 | | // If a class member function's address space is not set, set it to |
5697 | | // __generic. |
5698 | 160 | LangAS AS = |
5699 | 160 | (ASIdx == LangAS::Default ? S.getDefaultCXXMethodAddrSpace()102 |
5700 | 160 | : ASIdx58 ); |
5701 | 160 | EPI.TypeQuals.addAddressSpace(AS); |
5702 | 160 | } |
5703 | 36.9M | T = Context.getFunctionType(T, ParamTys, EPI); |
5704 | 36.9M | } |
5705 | 36.9M | break; |
5706 | 36.9M | } |
5707 | 36.9M | case DeclaratorChunk::MemberPointer: { |
5708 | | // The scope spec must refer to a class, or be dependent. |
5709 | 32.6k | CXXScopeSpec &SS = DeclType.Mem.Scope(); |
5710 | 32.6k | QualType ClsType; |
5711 | | |
5712 | | // Handle pointer nullability. |
5713 | 32.6k | inferPointerNullability(SimplePointerKind::MemberPointer, DeclType.Loc, |
5714 | 32.6k | DeclType.EndLoc, DeclType.getAttrs(), |
5715 | 32.6k | state.getDeclarator().getAttributePool()); |
5716 | | |
5717 | 32.6k | if (SS.isInvalid()) { |
5718 | | // Avoid emitting extra errors if we already errored on the scope. |
5719 | 1 | D.setInvalidType(true); |
5720 | 32.6k | } else if (S.isDependentScopeSpecifier(SS) || |
5721 | 32.6k | isa_and_nonnull<CXXRecordDecl>(S.computeDeclContext(SS))3.94k ) { |
5722 | 32.6k | NestedNameSpecifier *NNS = SS.getScopeRep(); |
5723 | 32.6k | NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); |
5724 | 32.6k | switch (NNS->getKind()) { |
5725 | 6 | case NestedNameSpecifier::Identifier: |
5726 | 6 | ClsType = Context.getDependentNameType( |
5727 | 6 | ElaboratedTypeKeyword::None, NNSPrefix, NNS->getAsIdentifier()); |
5728 | 6 | break; |
5729 | | |
5730 | 0 | case NestedNameSpecifier::Namespace: |
5731 | 0 | case NestedNameSpecifier::NamespaceAlias: |
5732 | 0 | case NestedNameSpecifier::Global: |
5733 | 0 | case NestedNameSpecifier::Super: |
5734 | 0 | llvm_unreachable("Nested-name-specifier must name a type"); |
5735 | |
|
5736 | 32.5k | case NestedNameSpecifier::TypeSpec: |
5737 | 32.5k | case NestedNameSpecifier::TypeSpecWithTemplate: |
5738 | 32.5k | ClsType = QualType(NNS->getAsType(), 0); |
5739 | | // Note: if the NNS has a prefix and ClsType is a nondependent |
5740 | | // TemplateSpecializationType, then the NNS prefix is NOT included |
5741 | | // in ClsType; hence we wrap ClsType into an ElaboratedType. |
5742 | | // NOTE: in particular, no wrap occurs if ClsType already is an |
5743 | | // Elaborated, DependentName, or DependentTemplateSpecialization. |
5744 | 32.5k | if (isa<TemplateSpecializationType>(NNS->getAsType())) |
5745 | 479 | ClsType = Context.getElaboratedType(ElaboratedTypeKeyword::None, |
5746 | 479 | NNSPrefix, ClsType); |
5747 | 32.5k | break; |
5748 | 32.6k | } |
5749 | 32.6k | } else { |
5750 | 6 | S.Diag(DeclType.Mem.Scope().getBeginLoc(), |
5751 | 6 | diag::err_illegal_decl_mempointer_in_nonclass) |
5752 | 6 | << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name"0 ) |
5753 | 6 | << DeclType.Mem.Scope().getRange(); |
5754 | 6 | D.setInvalidType(true); |
5755 | 6 | } |
5756 | | |
5757 | 32.6k | if (!ClsType.isNull()) |
5758 | 32.6k | T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, |
5759 | 32.6k | D.getIdentifier()); |
5760 | 7 | else |
5761 | 7 | AreDeclaratorChunksValid = false; |
5762 | | |
5763 | 32.6k | if (T.isNull()) { |
5764 | 7 | T = Context.IntTy; |
5765 | 7 | D.setInvalidType(true); |
5766 | 7 | AreDeclaratorChunksValid = false; |
5767 | 32.6k | } else if (DeclType.Mem.TypeQuals) { |
5768 | 218 | T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); |
5769 | 218 | } |
5770 | 32.6k | break; |
5771 | 32.6k | } |
5772 | | |
5773 | 249 | case DeclaratorChunk::Pipe: { |
5774 | 249 | T = S.BuildReadPipeType(T, DeclType.Loc); |
5775 | 249 | processTypeAttrs(state, T, TAL_DeclSpec, |
5776 | 249 | D.getMutableDeclSpec().getAttributes()); |
5777 | 249 | break; |
5778 | 32.6k | } |
5779 | 49.5M | } |
5780 | | |
5781 | 49.5M | if (T.isNull()) { |
5782 | 355 | D.setInvalidType(true); |
5783 | 355 | T = Context.IntTy; |
5784 | 355 | AreDeclaratorChunksValid = false; |
5785 | 355 | } |
5786 | | |
5787 | | // See if there are any attributes on this declarator chunk. |
5788 | 49.5M | processTypeAttrs(state, T, TAL_DeclChunk, DeclType.getAttrs(), |
5789 | 49.5M | S.IdentifyCUDATarget(D.getAttributes())); |
5790 | | |
5791 | 49.5M | if (DeclType.Kind != DeclaratorChunk::Paren) { |
5792 | 49.2M | if (ExpectNoDerefChunk && !IsNoDerefableChunk(DeclType)86 ) |
5793 | 6 | S.Diag(DeclType.Loc, diag::warn_noderef_on_non_pointer_or_array); |
5794 | | |
5795 | 49.2M | ExpectNoDerefChunk = state.didParseNoDeref(); |
5796 | 49.2M | } |
5797 | 49.5M | } |
5798 | | |
5799 | 155M | if (ExpectNoDerefChunk) |
5800 | 10 | S.Diag(state.getDeclarator().getBeginLoc(), |
5801 | 10 | diag::warn_noderef_on_non_pointer_or_array); |
5802 | | |
5803 | | // GNU warning -Wstrict-prototypes |
5804 | | // Warn if a function declaration or definition is without a prototype. |
5805 | | // This warning is issued for all kinds of unprototyped function |
5806 | | // declarations (i.e. function type typedef, function pointer etc.) |
5807 | | // C99 6.7.5.3p14: |
5808 | | // The empty list in a function declarator that is not part of a definition |
5809 | | // of that function specifies that no information about the number or types |
5810 | | // of the parameters is supplied. |
5811 | | // See ActOnFinishFunctionBody() and MergeFunctionDecl() for handling of |
5812 | | // function declarations whose behavior changes in C23. |
5813 | 155M | if (!LangOpts.requiresStrictPrototypes()) { |
5814 | 86.8M | bool IsBlock = false; |
5815 | 86.8M | for (const DeclaratorChunk &DeclType : D.type_objects()) { |
5816 | 26.5M | switch (DeclType.Kind) { |
5817 | 49.0k | case DeclaratorChunk::BlockPointer: |
5818 | 49.0k | IsBlock = true; |
5819 | 49.0k | break; |
5820 | 20.6M | case DeclaratorChunk::Function: { |
5821 | 20.6M | const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; |
5822 | | // We suppress the warning when there's no LParen location, as this |
5823 | | // indicates the declaration was an implicit declaration, which gets |
5824 | | // warned about separately via -Wimplicit-function-declaration. We also |
5825 | | // suppress the warning when we know the function has a prototype. |
5826 | 20.6M | if (!FTI.hasPrototype && FTI.NumParams == 09.40k && !FTI.isVariadic9.25k && |
5827 | 20.6M | FTI.getLParenLoc().isValid()9.24k ) |
5828 | 8.80k | S.Diag(DeclType.Loc, diag::warn_strict_prototypes) |
5829 | 8.80k | << IsBlock |
5830 | 8.80k | << FixItHint::CreateInsertion(FTI.getRParenLoc(), "void"); |
5831 | 20.6M | IsBlock = false; |
5832 | 20.6M | break; |
5833 | 0 | } |
5834 | 5.92M | default: |
5835 | 5.92M | break; |
5836 | 26.5M | } |
5837 | 26.5M | } |
5838 | 86.8M | } |
5839 | | |
5840 | 155M | assert(!T.isNull() && "T must not be null after this point"); |
5841 | | |
5842 | 155M | if (LangOpts.CPlusPlus && T->isFunctionType()69.1M ) { |
5843 | 16.2M | const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); |
5844 | 16.2M | assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); |
5845 | | |
5846 | | // C++ 8.3.5p4: |
5847 | | // A cv-qualifier-seq shall only be part of the function type |
5848 | | // for a nonstatic member function, the function type to which a pointer |
5849 | | // to member refers, or the top-level function type of a function typedef |
5850 | | // declaration. |
5851 | | // |
5852 | | // Core issue 547 also allows cv-qualifiers on function types that are |
5853 | | // top-level template type arguments. |
5854 | 16.2M | enum { |
5855 | 16.2M | NonMember, |
5856 | 16.2M | Member, |
5857 | 16.2M | ExplicitObjectMember, |
5858 | 16.2M | DeductionGuide |
5859 | 16.2M | } Kind = NonMember; |
5860 | 16.2M | if (D.getName().getKind() == UnqualifiedIdKind::IK_DeductionGuideName) |
5861 | 1.61k | Kind = DeductionGuide; |
5862 | 16.2M | else if (!D.getCXXScopeSpec().isSet()) { |
5863 | 15.9M | if ((D.getContext() == DeclaratorContext::Member || |
5864 | 15.9M | D.getContext() == DeclaratorContext::LambdaExpr14.2M ) && |
5865 | 15.9M | !D.getDeclSpec().isFriendSpecified()1.72M ) |
5866 | 1.68M | Kind = Member; |
5867 | 15.9M | } else { |
5868 | 320k | DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); |
5869 | 320k | if (!DC || DC->isRecord()318k ) |
5870 | 319k | Kind = Member; |
5871 | 320k | } |
5872 | | |
5873 | 16.2M | if (Kind == Member) { |
5874 | 2.00M | unsigned I; |
5875 | 2.00M | if (D.isFunctionDeclarator(I)) { |
5876 | 2.00M | const DeclaratorChunk &Chunk = D.getTypeObject(I); |
5877 | 2.00M | if (Chunk.Fun.NumParams) { |
5878 | 1.32M | auto *P = dyn_cast_or_null<ParmVarDecl>(Chunk.Fun.Params->Param); |
5879 | 1.32M | if (P && P->isExplicitObjectParameter()) |
5880 | 209 | Kind = ExplicitObjectMember; |
5881 | 1.32M | } |
5882 | 2.00M | } |
5883 | 2.00M | } |
5884 | | |
5885 | | // C++11 [dcl.fct]p6 (w/DR1417): |
5886 | | // An attempt to specify a function type with a cv-qualifier-seq or a |
5887 | | // ref-qualifier (including by typedef-name) is ill-formed unless it is: |
5888 | | // - the function type for a non-static member function, |
5889 | | // - the function type to which a pointer to member refers, |
5890 | | // - the top-level function type of a function typedef declaration or |
5891 | | // alias-declaration, |
5892 | | // - the type-id in the default argument of a type-parameter, or |
5893 | | // - the type-id of a template-argument for a type-parameter |
5894 | | // |
5895 | | // FIXME: Checking this here is insufficient. We accept-invalid on: |
5896 | | // |
5897 | | // template<typename T> struct S { void f(T); }; |
5898 | | // S<int() const> s; |
5899 | | // |
5900 | | // ... for instance. |
5901 | 16.2M | if (IsQualifiedFunction && |
5902 | 16.2M | !(573k Kind == Member573k && !D.isExplicitObjectMemberFunction()573k && |
5903 | 573k | D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static573k ) && |
5904 | 16.2M | !IsTypedefName287 && D.getContext() != DeclaratorContext::TemplateArg240 && |
5905 | 16.2M | D.getContext() != DeclaratorContext::TemplateTypeArg59 ) { |
5906 | 57 | SourceLocation Loc = D.getBeginLoc(); |
5907 | 57 | SourceRange RemovalRange; |
5908 | 57 | unsigned I; |
5909 | 57 | if (D.isFunctionDeclarator(I)) { |
5910 | 48 | SmallVector<SourceLocation, 4> RemovalLocs; |
5911 | 48 | const DeclaratorChunk &Chunk = D.getTypeObject(I); |
5912 | 48 | assert(Chunk.Kind == DeclaratorChunk::Function); |
5913 | | |
5914 | 48 | if (Chunk.Fun.hasRefQualifier()) |
5915 | 14 | RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); |
5916 | | |
5917 | 48 | if (Chunk.Fun.hasMethodTypeQualifiers()) |
5918 | 36 | Chunk.Fun.MethodQualifiers->forEachQualifier( |
5919 | 36 | [&](DeclSpec::TQ TypeQual, StringRef QualName, |
5920 | 42 | SourceLocation SL) { RemovalLocs.push_back(SL); }); |
5921 | | |
5922 | 48 | if (!RemovalLocs.empty()) { |
5923 | 47 | llvm::sort(RemovalLocs, |
5924 | 47 | BeforeThanCompare<SourceLocation>(S.getSourceManager())); |
5925 | 47 | RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); |
5926 | 47 | Loc = RemovalLocs.front(); |
5927 | 47 | } |
5928 | 48 | } |
5929 | | |
5930 | 57 | S.Diag(Loc, diag::err_invalid_qualified_function_type) |
5931 | 57 | << Kind << D.isFunctionDeclarator() << T |
5932 | 57 | << getFunctionQualifiersAsString(FnTy) |
5933 | 57 | << FixItHint::CreateRemoval(RemovalRange); |
5934 | | |
5935 | | // Strip the cv-qualifiers and ref-qualifiers from the type. |
5936 | 57 | FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); |
5937 | 57 | EPI.TypeQuals.removeCVRQualifiers(); |
5938 | 57 | EPI.RefQualifier = RQ_None; |
5939 | | |
5940 | 57 | T = Context.getFunctionType(FnTy->getReturnType(), FnTy->getParamTypes(), |
5941 | 57 | EPI); |
5942 | | // Rebuild any parens around the identifier in the function type. |
5943 | 58 | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i1 ) { |
5944 | 49 | if (D.getTypeObject(i).Kind != DeclaratorChunk::Paren) |
5945 | 48 | break; |
5946 | 1 | T = S.BuildParenType(T); |
5947 | 1 | } |
5948 | 57 | } |
5949 | 16.2M | } |
5950 | | |
5951 | | // Apply any undistributed attributes from the declaration or declarator. |
5952 | 155M | ParsedAttributesView NonSlidingAttrs; |
5953 | 155M | for (ParsedAttr &AL : D.getDeclarationAttributes()) { |
5954 | 118k | if (!AL.slidesFromDeclToDeclSpecLegacyBehavior()) { |
5955 | 118k | NonSlidingAttrs.addAtEnd(&AL); |
5956 | 118k | } |
5957 | 118k | } |
5958 | 155M | processTypeAttrs(state, T, TAL_DeclName, NonSlidingAttrs); |
5959 | 155M | processTypeAttrs(state, T, TAL_DeclName, D.getAttributes()); |
5960 | | |
5961 | | // Diagnose any ignored type attributes. |
5962 | 155M | state.diagnoseIgnoredTypeAttrs(T); |
5963 | | |
5964 | | // C++0x [dcl.constexpr]p9: |
5965 | | // A constexpr specifier used in an object declaration declares the object |
5966 | | // as const. |
5967 | 155M | if (D.getDeclSpec().getConstexprSpecifier() == ConstexprSpecKind::Constexpr && |
5968 | 155M | T->isObjectType()474k ) |
5969 | 202k | T.addConst(); |
5970 | | |
5971 | | // C++2a [dcl.fct]p4: |
5972 | | // A parameter with volatile-qualified type is deprecated |
5973 | 155M | if (T.isVolatileQualified() && S.getLangOpts().CPlusPlus2043.6k && |
5974 | 155M | (1.28k D.getContext() == DeclaratorContext::Prototype1.28k || |
5975 | 1.28k | D.getContext() == DeclaratorContext::LambdaExprParameter1.26k )) |
5976 | 21 | S.Diag(D.getIdentifierLoc(), diag::warn_deprecated_volatile_param) << T; |
5977 | | |
5978 | | // If there was an ellipsis in the declarator, the declaration declares a |
5979 | | // parameter pack whose type may be a pack expansion type. |
5980 | 155M | if (D.hasEllipsis()) { |
5981 | | // C++0x [dcl.fct]p13: |
5982 | | // A declarator-id or abstract-declarator containing an ellipsis shall |
5983 | | // only be used in a parameter-declaration. Such a parameter-declaration |
5984 | | // is a parameter pack (14.5.3). [...] |
5985 | 116k | switch (D.getContext()) { |
5986 | 99.9k | case DeclaratorContext::Prototype: |
5987 | 100k | case DeclaratorContext::LambdaExprParameter: |
5988 | 100k | case DeclaratorContext::RequiresExpr: |
5989 | | // C++0x [dcl.fct]p13: |
5990 | | // [...] When it is part of a parameter-declaration-clause, the |
5991 | | // parameter pack is a function parameter pack (14.5.3). The type T |
5992 | | // of the declarator-id of the function parameter pack shall contain |
5993 | | // a template parameter pack; each template parameter pack in T is |
5994 | | // expanded by the function parameter pack. |
5995 | | // |
5996 | | // We represent function parameter packs as function parameters whose |
5997 | | // type is a pack expansion. |
5998 | 100k | if (!T->containsUnexpandedParameterPack() && |
5999 | 100k | (7 !LangOpts.CPlusPlus207 || !T->getContainedAutoType()0 )) { |
6000 | 7 | S.Diag(D.getEllipsisLoc(), |
6001 | 7 | diag::err_function_parameter_pack_without_parameter_packs) |
6002 | 7 | << T << D.getSourceRange(); |
6003 | 7 | D.setEllipsisLoc(SourceLocation()); |
6004 | 100k | } else { |
6005 | 100k | T = Context.getPackExpansionType(T, std::nullopt, |
6006 | 100k | /*ExpectPackInType=*/false); |
6007 | 100k | } |
6008 | 100k | break; |
6009 | 16.3k | case DeclaratorContext::TemplateParam: |
6010 | | // C++0x [temp.param]p15: |
6011 | | // If a template-parameter is a [...] is a parameter-declaration that |
6012 | | // declares a parameter pack (8.3.5), then the template-parameter is a |
6013 | | // template parameter pack (14.5.3). |
6014 | | // |
6015 | | // Note: core issue 778 clarifies that, if there are any unexpanded |
6016 | | // parameter packs in the type of the non-type template parameter, then |
6017 | | // it expands those parameter packs. |
6018 | 16.3k | if (T->containsUnexpandedParameterPack()) |
6019 | 48 | T = Context.getPackExpansionType(T, std::nullopt); |
6020 | 16.3k | else |
6021 | 16.3k | S.Diag(D.getEllipsisLoc(), |
6022 | 16.3k | LangOpts.CPlusPlus11 |
6023 | 16.3k | ? diag::warn_cxx98_compat_variadic_templates16.2k |
6024 | 16.3k | : diag::ext_variadic_templates6 ); |
6025 | 16.3k | break; |
6026 | | |
6027 | 1 | case DeclaratorContext::File: |
6028 | 1 | case DeclaratorContext::KNRTypeList: |
6029 | 1 | case DeclaratorContext::ObjCParameter: // FIXME: special diagnostic here? |
6030 | 1 | case DeclaratorContext::ObjCResult: // FIXME: special diagnostic here? |
6031 | 1 | case DeclaratorContext::TypeName: |
6032 | 1 | case DeclaratorContext::FunctionalCast: |
6033 | 1 | case DeclaratorContext::CXXNew: |
6034 | 1 | case DeclaratorContext::AliasDecl: |
6035 | 1 | case DeclaratorContext::AliasTemplate: |
6036 | 2 | case DeclaratorContext::Member: |
6037 | 3 | case DeclaratorContext::Block: |
6038 | 4 | case DeclaratorContext::ForInit: |
6039 | 4 | case DeclaratorContext::SelectionInit: |
6040 | 5 | case DeclaratorContext::Condition: |
6041 | 6 | case DeclaratorContext::CXXCatch: |
6042 | 6 | case DeclaratorContext::ObjCCatch: |
6043 | 6 | case DeclaratorContext::BlockLiteral: |
6044 | 6 | case DeclaratorContext::LambdaExpr: |
6045 | 6 | case DeclaratorContext::ConversionId: |
6046 | 6 | case DeclaratorContext::TrailingReturn: |
6047 | 6 | case DeclaratorContext::TrailingReturnVar: |
6048 | 6 | case DeclaratorContext::TemplateArg: |
6049 | 6 | case DeclaratorContext::TemplateTypeArg: |
6050 | 6 | case DeclaratorContext::Association: |
6051 | | // FIXME: We may want to allow parameter packs in block-literal contexts |
6052 | | // in the future. |
6053 | 6 | S.Diag(D.getEllipsisLoc(), |
6054 | 6 | diag::err_ellipsis_in_declarator_not_parameter); |
6055 | 6 | D.setEllipsisLoc(SourceLocation()); |
6056 | 6 | break; |
6057 | 116k | } |
6058 | 116k | } |
6059 | | |
6060 | 155M | assert(!T.isNull() && "T must not be null at the end of this function"); |
6061 | 155M | if (!AreDeclaratorChunksValid) |
6062 | 428 | return Context.getTrivialTypeSourceInfo(T); |
6063 | 155M | return GetTypeSourceInfoForDeclarator(state, T, TInfo); |
6064 | 155M | } |
6065 | | |
6066 | | /// GetTypeForDeclarator - Convert the type for the specified |
6067 | | /// declarator to Type instances. |
6068 | | /// |
6069 | | /// The result of this call will never be null, but the associated |
6070 | | /// type may be a null type if there's an unrecoverable error. |
6071 | 149M | TypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { |
6072 | | // Determine the type of the declarator. Not all forms of declarator |
6073 | | // have a type. |
6074 | | |
6075 | 149M | TypeProcessingState state(*this, D); |
6076 | | |
6077 | 149M | TypeSourceInfo *ReturnTypeInfo = nullptr; |
6078 | 149M | QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); |
6079 | 149M | if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount96.3M ) |
6080 | 163k | inferARCWriteback(state, T); |
6081 | | |
6082 | 149M | return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); |
6083 | 149M | } |
6084 | | |
6085 | | static void transferARCOwnershipToDeclSpec(Sema &S, |
6086 | | QualType &declSpecTy, |
6087 | 81 | Qualifiers::ObjCLifetime ownership) { |
6088 | 81 | if (declSpecTy->isObjCRetainableType() && |
6089 | 81 | declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { |
6090 | 22 | Qualifiers qs; |
6091 | 22 | qs.addObjCLifetime(ownership); |
6092 | 22 | declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); |
6093 | 22 | } |
6094 | 81 | } |
6095 | | |
6096 | | static void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, |
6097 | | Qualifiers::ObjCLifetime ownership, |
6098 | 776 | unsigned chunkIndex) { |
6099 | 776 | Sema &S = state.getSema(); |
6100 | 776 | Declarator &D = state.getDeclarator(); |
6101 | | |
6102 | | // Look for an explicit lifetime attribute. |
6103 | 776 | DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); |
6104 | 776 | if (chunk.getAttrs().hasAttribute(ParsedAttr::AT_ObjCOwnership)) |
6105 | 17 | return; |
6106 | | |
6107 | 759 | const char *attrStr = nullptr; |
6108 | 759 | switch (ownership) { |
6109 | 0 | case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); |
6110 | 0 | case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; |
6111 | 4 | case Qualifiers::OCL_Strong: attrStr = "strong"; break; |
6112 | 2 | case Qualifiers::OCL_Weak: attrStr = "weak"; break; |
6113 | 753 | case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; |
6114 | 759 | } |
6115 | | |
6116 | 759 | IdentifierLoc *Arg = new (S.Context) IdentifierLoc; |
6117 | 759 | Arg->Ident = &S.Context.Idents.get(attrStr); |
6118 | 759 | Arg->Loc = SourceLocation(); |
6119 | | |
6120 | 759 | ArgsUnion Args(Arg); |
6121 | | |
6122 | | // If there wasn't one, add one (with an invalid source location |
6123 | | // so that we don't make an AttributedType for it). |
6124 | 759 | ParsedAttr *attr = D.getAttributePool().create( |
6125 | 759 | &S.Context.Idents.get("objc_ownership"), SourceLocation(), |
6126 | 759 | /*scope*/ nullptr, SourceLocation(), |
6127 | 759 | /*args*/ &Args, 1, ParsedAttr::Form::GNU()); |
6128 | 759 | chunk.getAttrs().addAtEnd(attr); |
6129 | | // TODO: mark whether we did this inference? |
6130 | 759 | } |
6131 | | |
6132 | | /// Used for transferring ownership in casts resulting in l-values. |
6133 | | static void transferARCOwnership(TypeProcessingState &state, |
6134 | | QualType &declSpecTy, |
6135 | 488 | Qualifiers::ObjCLifetime ownership) { |
6136 | 488 | Sema &S = state.getSema(); |
6137 | 488 | Declarator &D = state.getDeclarator(); |
6138 | | |
6139 | 488 | int inner = -1; |
6140 | 488 | bool hasIndirection = false; |
6141 | 690 | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i202 ) { |
6142 | 202 | DeclaratorChunk &chunk = D.getTypeObject(i); |
6143 | 202 | switch (chunk.Kind) { |
6144 | 0 | case DeclaratorChunk::Paren: |
6145 | | // Ignore parens. |
6146 | 0 | break; |
6147 | | |
6148 | 0 | case DeclaratorChunk::Array: |
6149 | 5 | case DeclaratorChunk::Reference: |
6150 | 202 | case DeclaratorChunk::Pointer: |
6151 | 202 | if (inner != -1) |
6152 | 34 | hasIndirection = true; |
6153 | 202 | inner = i; |
6154 | 202 | break; |
6155 | | |
6156 | 0 | case DeclaratorChunk::BlockPointer: |
6157 | 0 | if (inner != -1) |
6158 | 0 | transferARCOwnershipToDeclaratorChunk(state, ownership, i); |
6159 | 0 | return; |
6160 | | |
6161 | 0 | case DeclaratorChunk::Function: |
6162 | 0 | case DeclaratorChunk::MemberPointer: |
6163 | 0 | case DeclaratorChunk::Pipe: |
6164 | 0 | return; |
6165 | 202 | } |
6166 | 202 | } |
6167 | | |
6168 | 488 | if (inner == -1) |
6169 | 320 | return; |
6170 | | |
6171 | 168 | DeclaratorChunk &chunk = D.getTypeObject(inner); |
6172 | 168 | if (chunk.Kind == DeclaratorChunk::Pointer) { |
6173 | 165 | if (declSpecTy->isObjCRetainableType()) |
6174 | 78 | return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); |
6175 | 87 | if (declSpecTy->isObjCObjectType() && hasIndirection38 ) |
6176 | 23 | return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); |
6177 | 87 | } else { |
6178 | 3 | assert(chunk.Kind == DeclaratorChunk::Array || |
6179 | 3 | chunk.Kind == DeclaratorChunk::Reference); |
6180 | 3 | return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); |
6181 | 3 | } |
6182 | 168 | } |
6183 | | |
6184 | 6.19M | TypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { |
6185 | 6.19M | TypeProcessingState state(*this, D); |
6186 | | |
6187 | 6.19M | TypeSourceInfo *ReturnTypeInfo = nullptr; |
6188 | 6.19M | QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); |
6189 | | |
6190 | 6.19M | if (getLangOpts().ObjC) { |
6191 | 362k | Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); |
6192 | 362k | if (ownership != Qualifiers::OCL_None) |
6193 | 488 | transferARCOwnership(state, declSpecTy, ownership); |
6194 | 362k | } |
6195 | | |
6196 | 6.19M | return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); |
6197 | 6.19M | } |
6198 | | |
6199 | | static void fillAttributedTypeLoc(AttributedTypeLoc TL, |
6200 | 3.27M | TypeProcessingState &State) { |
6201 | 3.27M | TL.setAttr(State.takeAttrForAttributedType(TL.getTypePtr())); |
6202 | 3.27M | } |
6203 | | |
6204 | | static void fillMatrixTypeLoc(MatrixTypeLoc MTL, |
6205 | 0 | const ParsedAttributesView &Attrs) { |
6206 | 0 | for (const ParsedAttr &AL : Attrs) { |
6207 | 0 | if (AL.getKind() == ParsedAttr::AT_MatrixType) { |
6208 | 0 | MTL.setAttrNameLoc(AL.getLoc()); |
6209 | 0 | MTL.setAttrRowOperand(AL.getArgAsExpr(0)); |
6210 | 0 | MTL.setAttrColumnOperand(AL.getArgAsExpr(1)); |
6211 | 0 | MTL.setAttrOperandParensRange(SourceRange()); |
6212 | 0 | return; |
6213 | 0 | } |
6214 | 0 | } |
6215 | | |
6216 | 0 | llvm_unreachable("no matrix_type attribute found at the expected location!"); |
6217 | 0 | } |
6218 | | |
6219 | | namespace { |
6220 | | class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { |
6221 | | Sema &SemaRef; |
6222 | | ASTContext &Context; |
6223 | | TypeProcessingState &State; |
6224 | | const DeclSpec &DS; |
6225 | | |
6226 | | public: |
6227 | | TypeSpecLocFiller(Sema &S, ASTContext &Context, TypeProcessingState &State, |
6228 | | const DeclSpec &DS) |
6229 | 155M | : SemaRef(S), Context(Context), State(State), DS(DS) {} |
6230 | | |
6231 | 1.70M | void VisitAttributedTypeLoc(AttributedTypeLoc TL) { |
6232 | 1.70M | Visit(TL.getModifiedLoc()); |
6233 | 1.70M | fillAttributedTypeLoc(TL, State); |
6234 | 1.70M | } |
6235 | 37 | void VisitBTFTagAttributedTypeLoc(BTFTagAttributedTypeLoc TL) { |
6236 | 37 | Visit(TL.getWrappedLoc()); |
6237 | 37 | } |
6238 | 140k | void VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) { |
6239 | 140k | Visit(TL.getInnerLoc()); |
6240 | 140k | TL.setExpansionLoc( |
6241 | 140k | State.getExpansionLocForMacroQualifiedType(TL.getTypePtr())); |
6242 | 140k | } |
6243 | 522k | void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { |
6244 | 522k | Visit(TL.getUnqualifiedLoc()); |
6245 | 522k | } |
6246 | | // Allow to fill pointee's type locations, e.g., |
6247 | | // int __attr * __attr * __attr *p; |
6248 | 4 | void VisitPointerTypeLoc(PointerTypeLoc TL) { Visit(TL.getNextTypeLoc()); } |
6249 | 130M | void VisitTypedefTypeLoc(TypedefTypeLoc TL) { |
6250 | 130M | TL.setNameLoc(DS.getTypeSpecTypeLoc()); |
6251 | 130M | } |
6252 | 1.02M | void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { |
6253 | 1.02M | TL.setNameLoc(DS.getTypeSpecTypeLoc()); |
6254 | | // FIXME. We should have DS.getTypeSpecTypeEndLoc(). But, it requires |
6255 | | // addition field. What we have is good enough for display of location |
6256 | | // of 'fixit' on interface name. |
6257 | 1.02M | TL.setNameEndLoc(DS.getEndLoc()); |
6258 | 1.02M | } |
6259 | 134k | void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { |
6260 | 134k | TypeSourceInfo *RepTInfo = nullptr; |
6261 | 134k | Sema::GetTypeFromParser(DS.getRepAsType(), &RepTInfo); |
6262 | 134k | TL.copy(RepTInfo->getTypeLoc()); |
6263 | 134k | } |
6264 | 15.6k | void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { |
6265 | 15.6k | TypeSourceInfo *RepTInfo = nullptr; |
6266 | 15.6k | Sema::GetTypeFromParser(DS.getRepAsType(), &RepTInfo); |
6267 | 15.6k | TL.copy(RepTInfo->getTypeLoc()); |
6268 | 15.6k | } |
6269 | 0 | void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { |
6270 | 0 | TypeSourceInfo *TInfo = nullptr; |
6271 | 0 | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6272 | | |
6273 | | // If we got no declarator info from previous Sema routines, |
6274 | | // just fill with the typespec loc. |
6275 | 0 | if (!TInfo) { |
6276 | 0 | TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); |
6277 | 0 | return; |
6278 | 0 | } |
6279 | | |
6280 | 0 | TypeLoc OldTL = TInfo->getTypeLoc(); |
6281 | 0 | if (TInfo->getType()->getAs<ElaboratedType>()) { |
6282 | 0 | ElaboratedTypeLoc ElabTL = OldTL.castAs<ElaboratedTypeLoc>(); |
6283 | 0 | TemplateSpecializationTypeLoc NamedTL = ElabTL.getNamedTypeLoc() |
6284 | 0 | .castAs<TemplateSpecializationTypeLoc>(); |
6285 | 0 | TL.copy(NamedTL); |
6286 | 0 | } else { |
6287 | 0 | TL.copy(OldTL.castAs<TemplateSpecializationTypeLoc>()); |
6288 | 0 | assert(TL.getRAngleLoc() == OldTL.castAs<TemplateSpecializationTypeLoc>().getRAngleLoc()); |
6289 | 0 | } |
6290 | |
|
6291 | 0 | } |
6292 | 3.25k | void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { |
6293 | 3.25k | assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr || |
6294 | 3.25k | DS.getTypeSpecType() == DeclSpec::TST_typeof_unqualExpr); |
6295 | 3.25k | TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); |
6296 | 3.25k | TL.setParensRange(DS.getTypeofParensRange()); |
6297 | 3.25k | } |
6298 | 157 | void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { |
6299 | 157 | assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType || |
6300 | 157 | DS.getTypeSpecType() == DeclSpec::TST_typeof_unqualType); |
6301 | 157 | TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); |
6302 | 157 | TL.setParensRange(DS.getTypeofParensRange()); |
6303 | 157 | assert(DS.getRepAsType()); |
6304 | 157 | TypeSourceInfo *TInfo = nullptr; |
6305 | 157 | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6306 | 157 | TL.setUnmodifiedTInfo(TInfo); |
6307 | 157 | } |
6308 | 62.1k | void VisitDecltypeTypeLoc(DecltypeTypeLoc TL) { |
6309 | 62.1k | assert(DS.getTypeSpecType() == DeclSpec::TST_decltype); |
6310 | 62.1k | TL.setDecltypeLoc(DS.getTypeSpecTypeLoc()); |
6311 | 62.1k | TL.setRParenLoc(DS.getTypeofParensRange().getEnd()); |
6312 | 62.1k | } |
6313 | 11.8k | void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { |
6314 | 11.8k | assert(DS.isTransformTypeTrait(DS.getTypeSpecType())); |
6315 | 11.8k | TL.setKWLoc(DS.getTypeSpecTypeLoc()); |
6316 | 11.8k | TL.setParensRange(DS.getTypeofParensRange()); |
6317 | 11.8k | assert(DS.getRepAsType()); |
6318 | 11.8k | TypeSourceInfo *TInfo = nullptr; |
6319 | 11.8k | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6320 | 11.8k | TL.setUnderlyingTInfo(TInfo); |
6321 | 11.8k | } |
6322 | 11.9M | void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { |
6323 | | // By default, use the source location of the type specifier. |
6324 | 11.9M | TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); |
6325 | 11.9M | if (TL.needsExtraLocalData()) { |
6326 | | // Set info for the written builtin specifiers. |
6327 | 4.66M | TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); |
6328 | | // Try to have a meaningful source location. |
6329 | 4.66M | if (TL.getWrittenSignSpec() != TypeSpecifierSign::Unspecified) |
6330 | 797k | TL.expandBuiltinRange(DS.getTypeSpecSignLoc()); |
6331 | 4.66M | if (TL.getWrittenWidthSpec() != TypeSpecifierWidth::Unspecified) |
6332 | 962k | TL.expandBuiltinRange(DS.getTypeSpecWidthRange()); |
6333 | 4.66M | } |
6334 | 11.9M | } |
6335 | 135M | void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { |
6336 | 135M | if (DS.getTypeSpecType() == TST_typename) { |
6337 | 134M | TypeSourceInfo *TInfo = nullptr; |
6338 | 134M | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6339 | 134M | if (TInfo) |
6340 | 2.09M | if (auto ETL = TInfo->getTypeLoc().getAs<ElaboratedTypeLoc>()) { |
6341 | 2.09M | TL.copy(ETL); |
6342 | 2.09M | return; |
6343 | 2.09M | } |
6344 | 134M | } |
6345 | 133M | const ElaboratedType *T = TL.getTypePtr(); |
6346 | 133M | TL.setElaboratedKeywordLoc(T->getKeyword() != ElaboratedTypeKeyword::None |
6347 | 133M | ? DS.getTypeSpecTypeLoc()1.40M |
6348 | 133M | : SourceLocation()132M ); |
6349 | 133M | const CXXScopeSpec& SS = DS.getTypeSpecScope(); |
6350 | 133M | TL.setQualifierLoc(SS.getWithLocInContext(Context)); |
6351 | 133M | Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); |
6352 | 133M | } |
6353 | 453k | void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { |
6354 | 453k | assert(DS.getTypeSpecType() == TST_typename); |
6355 | 453k | TypeSourceInfo *TInfo = nullptr; |
6356 | 453k | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6357 | 453k | assert(TInfo); |
6358 | 453k | TL.copy(TInfo->getTypeLoc().castAs<DependentNameTypeLoc>()); |
6359 | 453k | } |
6360 | | void VisitDependentTemplateSpecializationTypeLoc( |
6361 | 12.0k | DependentTemplateSpecializationTypeLoc TL) { |
6362 | 12.0k | assert(DS.getTypeSpecType() == TST_typename); |
6363 | 12.0k | TypeSourceInfo *TInfo = nullptr; |
6364 | 12.0k | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6365 | 12.0k | assert(TInfo); |
6366 | 12.0k | TL.copy( |
6367 | 12.0k | TInfo->getTypeLoc().castAs<DependentTemplateSpecializationTypeLoc>()); |
6368 | 12.0k | } |
6369 | 84.4k | void VisitAutoTypeLoc(AutoTypeLoc TL) { |
6370 | 84.4k | assert(DS.getTypeSpecType() == TST_auto || |
6371 | 84.4k | DS.getTypeSpecType() == TST_decltype_auto || |
6372 | 84.4k | DS.getTypeSpecType() == TST_auto_type || |
6373 | 84.4k | DS.getTypeSpecType() == TST_unspecified); |
6374 | 84.4k | TL.setNameLoc(DS.getTypeSpecTypeLoc()); |
6375 | 84.4k | if (DS.getTypeSpecType() == TST_decltype_auto) |
6376 | 929 | TL.setRParenLoc(DS.getTypeofParensRange().getEnd()); |
6377 | 84.4k | if (!DS.isConstrainedAuto()) |
6378 | 84.3k | return; |
6379 | 162 | TemplateIdAnnotation *TemplateId = DS.getRepAsTemplateId(); |
6380 | 162 | if (!TemplateId) |
6381 | 8 | return; |
6382 | | |
6383 | 154 | NestedNameSpecifierLoc NNS = |
6384 | 154 | (DS.getTypeSpecScope().isNotEmpty() |
6385 | 154 | ? DS.getTypeSpecScope().getWithLocInContext(Context)15 |
6386 | 154 | : NestedNameSpecifierLoc()139 ); |
6387 | 154 | TemplateArgumentListInfo TemplateArgsInfo(TemplateId->LAngleLoc, |
6388 | 154 | TemplateId->RAngleLoc); |
6389 | 154 | if (TemplateId->NumArgs > 0) { |
6390 | 48 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), |
6391 | 48 | TemplateId->NumArgs); |
6392 | 48 | SemaRef.translateTemplateArguments(TemplateArgsPtr, TemplateArgsInfo); |
6393 | 48 | } |
6394 | 154 | DeclarationNameInfo DNI = DeclarationNameInfo( |
6395 | 154 | TL.getTypePtr()->getTypeConstraintConcept()->getDeclName(), |
6396 | 154 | TemplateId->TemplateNameLoc); |
6397 | 154 | auto *CR = ConceptReference::Create( |
6398 | 154 | Context, NNS, TemplateId->TemplateKWLoc, DNI, |
6399 | 154 | /*FoundDecl=*/nullptr, |
6400 | 154 | /*NamedDecl=*/TL.getTypePtr()->getTypeConstraintConcept(), |
6401 | 154 | ASTTemplateArgumentListInfo::Create(Context, TemplateArgsInfo)); |
6402 | 154 | TL.setConceptReference(CR); |
6403 | 154 | } |
6404 | 2.24M | void VisitTagTypeLoc(TagTypeLoc TL) { |
6405 | 2.24M | TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); |
6406 | 2.24M | } |
6407 | 3.30k | void VisitAtomicTypeLoc(AtomicTypeLoc TL) { |
6408 | | // An AtomicTypeLoc can come from either an _Atomic(...) type specifier |
6409 | | // or an _Atomic qualifier. |
6410 | 3.30k | if (DS.getTypeSpecType() == DeclSpec::TST_atomic) { |
6411 | 3.09k | TL.setKWLoc(DS.getTypeSpecTypeLoc()); |
6412 | 3.09k | TL.setParensRange(DS.getTypeofParensRange()); |
6413 | | |
6414 | 3.09k | TypeSourceInfo *TInfo = nullptr; |
6415 | 3.09k | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6416 | 3.09k | assert(TInfo); |
6417 | 3.09k | TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); |
6418 | 3.09k | } else { |
6419 | 207 | TL.setKWLoc(DS.getAtomicSpecLoc()); |
6420 | | // No parens, to indicate this was spelled as an _Atomic qualifier. |
6421 | 207 | TL.setParensRange(SourceRange()); |
6422 | 207 | Visit(TL.getValueLoc()); |
6423 | 207 | } |
6424 | 3.30k | } |
6425 | | |
6426 | 0 | void VisitPipeTypeLoc(PipeTypeLoc TL) { |
6427 | 0 | TL.setKWLoc(DS.getTypeSpecTypeLoc()); |
6428 | |
|
6429 | 0 | TypeSourceInfo *TInfo = nullptr; |
6430 | 0 | Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); |
6431 | 0 | TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); |
6432 | 0 | } |
6433 | | |
6434 | 0 | void VisitExtIntTypeLoc(BitIntTypeLoc TL) { |
6435 | 0 | TL.setNameLoc(DS.getTypeSpecTypeLoc()); |
6436 | 0 | } |
6437 | | |
6438 | 0 | void VisitDependentExtIntTypeLoc(DependentBitIntTypeLoc TL) { |
6439 | 0 | TL.setNameLoc(DS.getTypeSpecTypeLoc()); |
6440 | 0 | } |
6441 | | |
6442 | 7.12M | void VisitTypeLoc(TypeLoc TL) { |
6443 | | // FIXME: add other typespec types and change this to an assert. |
6444 | 7.12M | TL.initialize(Context, DS.getTypeSpecTypeLoc()); |
6445 | 7.12M | } |
6446 | | }; |
6447 | | |
6448 | | class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { |
6449 | | ASTContext &Context; |
6450 | | TypeProcessingState &State; |
6451 | | const DeclaratorChunk &Chunk; |
6452 | | |
6453 | | public: |
6454 | | DeclaratorLocFiller(ASTContext &Context, TypeProcessingState &State, |
6455 | | const DeclaratorChunk &Chunk) |
6456 | 49.5M | : Context(Context), State(State), Chunk(Chunk) {} |
6457 | | |
6458 | 0 | void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { |
6459 | 0 | llvm_unreachable("qualified type locs not expected here!"); |
6460 | 0 | } |
6461 | 0 | void VisitDecayedTypeLoc(DecayedTypeLoc TL) { |
6462 | 0 | llvm_unreachable("decayed type locs not expected here!"); |
6463 | 0 | } |
6464 | | |
6465 | 0 | void VisitAttributedTypeLoc(AttributedTypeLoc TL) { |
6466 | 0 | fillAttributedTypeLoc(TL, State); |
6467 | 0 | } |
6468 | 0 | void VisitBTFTagAttributedTypeLoc(BTFTagAttributedTypeLoc TL) { |
6469 | | // nothing |
6470 | 0 | } |
6471 | 0 | void VisitAdjustedTypeLoc(AdjustedTypeLoc TL) { |
6472 | | // nothing |
6473 | 0 | } |
6474 | 61.4k | void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { |
6475 | 61.4k | assert(Chunk.Kind == DeclaratorChunk::BlockPointer); |
6476 | 61.4k | TL.setCaretLoc(Chunk.Loc); |
6477 | 61.4k | } |
6478 | 8.64M | void VisitPointerTypeLoc(PointerTypeLoc TL) { |
6479 | 8.64M | assert(Chunk.Kind == DeclaratorChunk::Pointer); |
6480 | 8.64M | TL.setStarLoc(Chunk.Loc); |
6481 | 8.64M | } |
6482 | 1.16M | void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { |
6483 | 1.16M | assert(Chunk.Kind == DeclaratorChunk::Pointer); |
6484 | 1.16M | TL.setStarLoc(Chunk.Loc); |
6485 | 1.16M | } |
6486 | 32.5k | void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { |
6487 | 32.5k | assert(Chunk.Kind == DeclaratorChunk::MemberPointer); |
6488 | 32.5k | const CXXScopeSpec& SS = Chunk.Mem.Scope(); |
6489 | 32.5k | NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); |
6490 | | |
6491 | 32.5k | const Type* ClsTy = TL.getClass(); |
6492 | 32.5k | QualType ClsQT = QualType(ClsTy, 0); |
6493 | 32.5k | TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); |
6494 | | // Now copy source location info into the type loc component. |
6495 | 32.5k | TypeLoc ClsTL = ClsTInfo->getTypeLoc(); |
6496 | 32.5k | switch (NNSLoc.getNestedNameSpecifier()->getKind()) { |
6497 | 6 | case NestedNameSpecifier::Identifier: |
6498 | 6 | assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); |
6499 | 6 | { |
6500 | 6 | DependentNameTypeLoc DNTLoc = ClsTL.castAs<DependentNameTypeLoc>(); |
6501 | 6 | DNTLoc.setElaboratedKeywordLoc(SourceLocation()); |
6502 | 6 | DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); |
6503 | 6 | DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); |
6504 | 6 | } |
6505 | 6 | break; |
6506 | | |
6507 | 32.5k | case NestedNameSpecifier::TypeSpec: |
6508 | 32.5k | case NestedNameSpecifier::TypeSpecWithTemplate: |
6509 | 32.5k | if (isa<ElaboratedType>(ClsTy)) { |
6510 | 479 | ElaboratedTypeLoc ETLoc = ClsTL.castAs<ElaboratedTypeLoc>(); |
6511 | 479 | ETLoc.setElaboratedKeywordLoc(SourceLocation()); |
6512 | 479 | ETLoc.setQualifierLoc(NNSLoc.getPrefix()); |
6513 | 479 | TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); |
6514 | 479 | NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); |
6515 | 32.1k | } else { |
6516 | 32.1k | ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); |
6517 | 32.1k | } |
6518 | 32.5k | break; |
6519 | | |
6520 | 0 | case NestedNameSpecifier::Namespace: |
6521 | 0 | case NestedNameSpecifier::NamespaceAlias: |
6522 | 0 | case NestedNameSpecifier::Global: |
6523 | 0 | case NestedNameSpecifier::Super: |
6524 | 0 | llvm_unreachable("Nested-name-specifier must name a type"); |
6525 | 32.5k | } |
6526 | | |
6527 | | // Finally fill in MemberPointerLocInfo fields. |
6528 | 32.5k | TL.setStarLoc(Chunk.Mem.StarLoc); |
6529 | 32.5k | TL.setClassTInfo(ClsTInfo); |
6530 | 32.5k | } |
6531 | 1.72M | void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { |
6532 | 1.72M | assert(Chunk.Kind == DeclaratorChunk::Reference); |
6533 | | // 'Amp' is misleading: this might have been originally |
6534 | | /// spelled with AmpAmp. |
6535 | 1.72M | TL.setAmpLoc(Chunk.Loc); |
6536 | 1.72M | } |
6537 | 310k | void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { |
6538 | 310k | assert(Chunk.Kind == DeclaratorChunk::Reference); |
6539 | 310k | assert(!Chunk.Ref.LValueRef); |
6540 | 310k | TL.setAmpAmpLoc(Chunk.Loc); |
6541 | 310k | } |
6542 | 352k | void VisitArrayTypeLoc(ArrayTypeLoc TL) { |
6543 | 352k | assert(Chunk.Kind == DeclaratorChunk::Array); |
6544 | 352k | TL.setLBracketLoc(Chunk.Loc); |
6545 | 352k | TL.setRBracketLoc(Chunk.EndLoc); |
6546 | 352k | TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); |
6547 | 352k | } |
6548 | 36.9M | void VisitFunctionTypeLoc(FunctionTypeLoc TL) { |
6549 | 36.9M | assert(Chunk.Kind == DeclaratorChunk::Function); |
6550 | 36.9M | TL.setLocalRangeBegin(Chunk.Loc); |
6551 | 36.9M | TL.setLocalRangeEnd(Chunk.EndLoc); |
6552 | | |
6553 | 36.9M | const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; |
6554 | 36.9M | TL.setLParenLoc(FTI.getLParenLoc()); |
6555 | 36.9M | TL.setRParenLoc(FTI.getRParenLoc()); |
6556 | 131M | for (unsigned i = 0, e = TL.getNumParams(), tpi = 0; i != e; ++i94.3M ) { |
6557 | 94.3M | ParmVarDecl *Param = cast<ParmVarDecl>(FTI.Params[i].Param); |
6558 | 94.3M | TL.setParam(tpi++, Param); |
6559 | 94.3M | } |
6560 | 36.9M | TL.setExceptionSpecRange(FTI.getExceptionSpecRange()); |
6561 | 36.9M | } |
6562 | 315k | void VisitParenTypeLoc(ParenTypeLoc TL) { |
6563 | 315k | assert(Chunk.Kind == DeclaratorChunk::Paren); |
6564 | 315k | TL.setLParenLoc(Chunk.Loc); |
6565 | 315k | TL.setRParenLoc(Chunk.EndLoc); |
6566 | 315k | } |
6567 | 249 | void VisitPipeTypeLoc(PipeTypeLoc TL) { |
6568 | 249 | assert(Chunk.Kind == DeclaratorChunk::Pipe); |
6569 | 249 | TL.setKWLoc(Chunk.Loc); |
6570 | 249 | } |
6571 | 0 | void VisitBitIntTypeLoc(BitIntTypeLoc TL) { |
6572 | 0 | TL.setNameLoc(Chunk.Loc); |
6573 | 0 | } |
6574 | 0 | void VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) { |
6575 | 0 | TL.setExpansionLoc(Chunk.Loc); |
6576 | 0 | } |
6577 | 6 | void VisitVectorTypeLoc(VectorTypeLoc TL) { TL.setNameLoc(Chunk.Loc); } |
6578 | 18 | void VisitDependentVectorTypeLoc(DependentVectorTypeLoc TL) { |
6579 | 18 | TL.setNameLoc(Chunk.Loc); |
6580 | 18 | } |
6581 | 0 | void VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { |
6582 | 0 | TL.setNameLoc(Chunk.Loc); |
6583 | 0 | } |
6584 | | void |
6585 | 0 | VisitDependentSizedExtVectorTypeLoc(DependentSizedExtVectorTypeLoc TL) { |
6586 | 0 | TL.setNameLoc(Chunk.Loc); |
6587 | 0 | } |
6588 | 0 | void VisitMatrixTypeLoc(MatrixTypeLoc TL) { |
6589 | 0 | fillMatrixTypeLoc(TL, Chunk.getAttrs()); |
6590 | 0 | } |
6591 | | |
6592 | 0 | void VisitTypeLoc(TypeLoc TL) { |
6593 | 0 | llvm_unreachable("unsupported TypeLoc kind in declarator!"); |
6594 | 0 | } |
6595 | | }; |
6596 | | } // end anonymous namespace |
6597 | | |
6598 | 18 | static void fillAtomicQualLoc(AtomicTypeLoc ATL, const DeclaratorChunk &Chunk) { |
6599 | 18 | SourceLocation Loc; |
6600 | 18 | switch (Chunk.Kind) { |
6601 | 0 | case DeclaratorChunk::Function: |
6602 | 0 | case DeclaratorChunk::Array: |
6603 | 0 | case DeclaratorChunk::Paren: |
6604 | 0 | case DeclaratorChunk::Pipe: |
6605 | 0 | llvm_unreachable("cannot be _Atomic qualified"); |
6606 | |
|
6607 | 16 | case DeclaratorChunk::Pointer: |
6608 | 16 | Loc = Chunk.Ptr.AtomicQualLoc; |
6609 | 16 | break; |
6610 | | |
6611 | 0 | case DeclaratorChunk::BlockPointer: |
6612 | 0 | case DeclaratorChunk::Reference: |
6613 | 2 | case DeclaratorChunk::MemberPointer: |
6614 | | // FIXME: Provide a source location for the _Atomic keyword. |
6615 | 2 | break; |
6616 | 18 | } |
6617 | | |
6618 | 18 | ATL.setKWLoc(Loc); |
6619 | 18 | ATL.setParensRange(SourceRange()); |
6620 | 18 | } |
6621 | | |
6622 | | static void |
6623 | | fillDependentAddressSpaceTypeLoc(DependentAddressSpaceTypeLoc DASTL, |
6624 | 1 | const ParsedAttributesView &Attrs) { |
6625 | 1 | for (const ParsedAttr &AL : Attrs) { |
6626 | 1 | if (AL.getKind() == ParsedAttr::AT_AddressSpace) { |
6627 | 1 | DASTL.setAttrNameLoc(AL.getLoc()); |
6628 | 1 | DASTL.setAttrExprOperand(AL.getArgAsExpr(0)); |
6629 | 1 | DASTL.setAttrOperandParensRange(SourceRange()); |
6630 | 1 | return; |
6631 | 1 | } |
6632 | 1 | } |
6633 | | |
6634 | 0 | llvm_unreachable( |
6635 | 0 | "no address_space attribute found at the expected location!"); |
6636 | 0 | } |
6637 | | |
6638 | | /// Create and instantiate a TypeSourceInfo with type source information. |
6639 | | /// |
6640 | | /// \param T QualType referring to the type as written in source code. |
6641 | | /// |
6642 | | /// \param ReturnTypeInfo For declarators whose return type does not show |
6643 | | /// up in the normal place in the declaration specifiers (such as a C++ |
6644 | | /// conversion function), this pointer will refer to a type source information |
6645 | | /// for that return type. |
6646 | | static TypeSourceInfo * |
6647 | | GetTypeSourceInfoForDeclarator(TypeProcessingState &State, |
6648 | 155M | QualType T, TypeSourceInfo *ReturnTypeInfo) { |
6649 | 155M | Sema &S = State.getSema(); |
6650 | 155M | Declarator &D = State.getDeclarator(); |
6651 | | |
6652 | 155M | TypeSourceInfo *TInfo = S.Context.CreateTypeSourceInfo(T); |
6653 | 155M | UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); |
6654 | | |
6655 | | // Handle parameter packs whose type is a pack expansion. |
6656 | 155M | if (isa<PackExpansionType>(T)) { |
6657 | 100k | CurrTL.castAs<PackExpansionTypeLoc>().setEllipsisLoc(D.getEllipsisLoc()); |
6658 | 100k | CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); |
6659 | 100k | } |
6660 | | |
6661 | 205M | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i49.5M ) { |
6662 | | // Microsoft property fields can have multiple sizeless array chunks |
6663 | | // (i.e. int x[][][]). Don't create more than one level of incomplete array. |
6664 | 49.5M | if (CurrTL.getTypeLocClass() == TypeLoc::IncompleteArray && e != 141.9k && |
6665 | 49.5M | D.getDeclSpec().getAttributes().hasMSPropertyAttr()8.72k ) |
6666 | 33 | continue; |
6667 | | |
6668 | | // An AtomicTypeLoc might be produced by an atomic qualifier in this |
6669 | | // declarator chunk. |
6670 | 49.5M | if (AtomicTypeLoc ATL = CurrTL.getAs<AtomicTypeLoc>()) { |
6671 | 18 | fillAtomicQualLoc(ATL, D.getTypeObject(i)); |
6672 | 18 | CurrTL = ATL.getValueLoc().getUnqualifiedLoc(); |
6673 | 18 | } |
6674 | | |
6675 | 49.5M | bool HasDesugaredTypeLoc = true; |
6676 | 100M | while (HasDesugaredTypeLoc) { |
6677 | 51.2M | switch (CurrTL.getTypeLocClass()) { |
6678 | 97.8k | case TypeLoc::MacroQualified: { |
6679 | 97.8k | auto TL = CurrTL.castAs<MacroQualifiedTypeLoc>(); |
6680 | 97.8k | TL.setExpansionLoc( |
6681 | 97.8k | State.getExpansionLocForMacroQualifiedType(TL.getTypePtr())); |
6682 | 97.8k | CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); |
6683 | 97.8k | break; |
6684 | 0 | } |
6685 | | |
6686 | 1.57M | case TypeLoc::Attributed: { |
6687 | 1.57M | auto TL = CurrTL.castAs<AttributedTypeLoc>(); |
6688 | 1.57M | fillAttributedTypeLoc(TL, State); |
6689 | 1.57M | CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); |
6690 | 1.57M | break; |
6691 | 0 | } |
6692 | | |
6693 | 0 | case TypeLoc::Adjusted: |
6694 | 30 | case TypeLoc::BTFTagAttributed: { |
6695 | 30 | CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); |
6696 | 30 | break; |
6697 | 0 | } |
6698 | | |
6699 | 1 | case TypeLoc::DependentAddressSpace: { |
6700 | 1 | auto TL = CurrTL.castAs<DependentAddressSpaceTypeLoc>(); |
6701 | 1 | fillDependentAddressSpaceTypeLoc(TL, D.getTypeObject(i).getAttrs()); |
6702 | 1 | CurrTL = TL.getPointeeTypeLoc().getUnqualifiedLoc(); |
6703 | 1 | break; |
6704 | 0 | } |
6705 | | |
6706 | 49.5M | default: |
6707 | 49.5M | HasDesugaredTypeLoc = false; |
6708 | 49.5M | break; |
6709 | 51.2M | } |
6710 | 51.2M | } |
6711 | | |
6712 | 49.5M | DeclaratorLocFiller(S.Context, State, D.getTypeObject(i)).Visit(CurrTL); |
6713 | 49.5M | CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); |
6714 | 49.5M | } |
6715 | | |
6716 | | // If we have different source information for the return type, use |
6717 | | // that. This really only applies to C++ conversion functions. |
6718 | 155M | if (ReturnTypeInfo) { |
6719 | 30.7k | TypeLoc TL = ReturnTypeInfo->getTypeLoc(); |
6720 | 30.7k | assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); |
6721 | 30.7k | memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); |
6722 | 155M | } else { |
6723 | 155M | TypeSpecLocFiller(S, S.Context, State, D.getDeclSpec()).Visit(CurrTL); |
6724 | 155M | } |
6725 | | |
6726 | 155M | return TInfo; |
6727 | 155M | } |
6728 | | |
6729 | | /// Create a LocInfoType to hold the given QualType and TypeSourceInfo. |
6730 | 18.6M | ParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { |
6731 | | // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser |
6732 | | // and Sema during declaration parsing. Try deallocating/caching them when |
6733 | | // it's appropriate, instead of allocating them and keeping them around. |
6734 | 18.6M | LocInfoType *LocT = (LocInfoType *)BumpAlloc.Allocate(sizeof(LocInfoType), |
6735 | 18.6M | alignof(LocInfoType)); |
6736 | 18.6M | new (LocT) LocInfoType(T, TInfo); |
6737 | 18.6M | assert(LocT->getTypeClass() != T->getTypeClass() && |
6738 | 18.6M | "LocInfoType's TypeClass conflicts with an existing Type class"); |
6739 | 18.6M | return ParsedType::make(QualType(LocT, 0)); |
6740 | 18.6M | } |
6741 | | |
6742 | | void LocInfoType::getAsStringInternal(std::string &Str, |
6743 | 0 | const PrintingPolicy &Policy) const { |
6744 | 0 | llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" |
6745 | 0 | " was used directly instead of getting the QualType through" |
6746 | 0 | " GetTypeFromParser"); |
6747 | 0 | } |
6748 | | |
6749 | 9.28M | TypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { |
6750 | | // C99 6.7.6: Type names have no identifier. This is already validated by |
6751 | | // the parser. |
6752 | 9.28M | assert(D.getIdentifier() == nullptr && |
6753 | 9.28M | "Type name should have no identifier!"); |
6754 | | |
6755 | 9.28M | TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); |
6756 | 9.28M | QualType T = TInfo->getType(); |
6757 | 9.28M | if (D.isInvalidType()) |
6758 | 485 | return true; |
6759 | | |
6760 | | // Make sure there are no unused decl attributes on the declarator. |
6761 | | // We don't want to do this for ObjC parameters because we're going |
6762 | | // to apply them to the actual parameter declaration. |
6763 | | // Likewise, we don't want to do this for alias declarations, because |
6764 | | // we are actually going to build a declaration from this eventually. |
6765 | 9.28M | if (D.getContext() != DeclaratorContext::ObjCParameter && |
6766 | 9.28M | D.getContext() != DeclaratorContext::AliasDecl8.31M && |
6767 | 9.28M | D.getContext() != DeclaratorContext::AliasTemplate8.10M ) |
6768 | 8.02M | checkUnusedDeclAttributes(D); |
6769 | | |
6770 | 9.28M | if (getLangOpts().CPlusPlus) { |
6771 | | // Check that there are no default arguments (C++ only). |
6772 | 7.45M | CheckExtraCXXDefaultArguments(D); |
6773 | 7.45M | } |
6774 | | |
6775 | 9.28M | return CreateParsedType(T, TInfo); |
6776 | 9.28M | } |
6777 | | |
6778 | 112k | ParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { |
6779 | 112k | QualType T = Context.getObjCInstanceType(); |
6780 | 112k | TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); |
6781 | 112k | return CreateParsedType(T, TInfo); |
6782 | 112k | } |
6783 | | |
6784 | | //===----------------------------------------------------------------------===// |
6785 | | // Type Attribute Processing |
6786 | | //===----------------------------------------------------------------------===// |
6787 | | |
6788 | | /// Build an AddressSpace index from a constant expression and diagnose any |
6789 | | /// errors related to invalid address_spaces. Returns true on successfully |
6790 | | /// building an AddressSpace index. |
6791 | | static bool BuildAddressSpaceIndex(Sema &S, LangAS &ASIdx, |
6792 | | const Expr *AddrSpace, |
6793 | 1.03k | SourceLocation AttrLoc) { |
6794 | 1.03k | if (!AddrSpace->isValueDependent()) { |
6795 | 986 | std::optional<llvm::APSInt> OptAddrSpace = |
6796 | 986 | AddrSpace->getIntegerConstantExpr(S.Context); |
6797 | 986 | if (!OptAddrSpace) { |
6798 | 1 | S.Diag(AttrLoc, diag::err_attribute_argument_type) |
6799 | 1 | << "'address_space'" << AANT_ArgumentIntegerConstant |
6800 | 1 | << AddrSpace->getSourceRange(); |
6801 | 1 | return false; |
6802 | 1 | } |
6803 | 985 | llvm::APSInt &addrSpace = *OptAddrSpace; |
6804 | | |
6805 | | // Bounds checking. |
6806 | 985 | if (addrSpace.isSigned()) { |
6807 | 978 | if (addrSpace.isNegative()) { |
6808 | 2 | S.Diag(AttrLoc, diag::err_attribute_address_space_negative) |
6809 | 2 | << AddrSpace->getSourceRange(); |
6810 | 2 | return false; |
6811 | 2 | } |
6812 | 976 | addrSpace.setIsSigned(false); |
6813 | 976 | } |
6814 | | |
6815 | 983 | llvm::APSInt max(addrSpace.getBitWidth()); |
6816 | 983 | max = |
6817 | 983 | Qualifiers::MaxAddressSpace - (unsigned)LangAS::FirstTargetAddressSpace; |
6818 | | |
6819 | 983 | if (addrSpace > max) { |
6820 | 4 | S.Diag(AttrLoc, diag::err_attribute_address_space_too_high) |
6821 | 4 | << (unsigned)max.getZExtValue() << AddrSpace->getSourceRange(); |
6822 | 4 | return false; |
6823 | 4 | } |
6824 | | |
6825 | 979 | ASIdx = |
6826 | 979 | getLangASFromTargetAS(static_cast<unsigned>(addrSpace.getZExtValue())); |
6827 | 979 | return true; |
6828 | 983 | } |
6829 | | |
6830 | | // Default value for DependentAddressSpaceTypes |
6831 | 53 | ASIdx = LangAS::Default; |
6832 | 53 | return true; |
6833 | 1.03k | } |
6834 | | |
6835 | | /// BuildAddressSpaceAttr - Builds a DependentAddressSpaceType if an expression |
6836 | | /// is uninstantiated. If instantiated it will apply the appropriate address |
6837 | | /// space to the type. This function allows dependent template variables to be |
6838 | | /// used in conjunction with the address_space attribute |
6839 | | QualType Sema::BuildAddressSpaceAttr(QualType &T, LangAS ASIdx, Expr *AddrSpace, |
6840 | 1.03k | SourceLocation AttrLoc) { |
6841 | 1.03k | if (!AddrSpace->isValueDependent()) { |
6842 | 979 | if (DiagnoseMultipleAddrSpaceAttributes(*this, T.getAddressSpace(), ASIdx, |
6843 | 979 | AttrLoc)) |
6844 | 2 | return QualType(); |
6845 | | |
6846 | 977 | return Context.getAddrSpaceQualType(T, ASIdx); |
6847 | 979 | } |
6848 | | |
6849 | | // A check with similar intentions as checking if a type already has an |
6850 | | // address space except for on a dependent types, basically if the |
6851 | | // current type is already a DependentAddressSpaceType then its already |
6852 | | // lined up to have another address space on it and we can't have |
6853 | | // multiple address spaces on the one pointer indirection |
6854 | 53 | if (T->getAs<DependentAddressSpaceType>()) { |
6855 | 2 | Diag(AttrLoc, diag::err_attribute_address_multiple_qualifiers); |
6856 | 2 | return QualType(); |
6857 | 2 | } |
6858 | | |
6859 | 51 | return Context.getDependentAddressSpaceType(T, AddrSpace, AttrLoc); |
6860 | 53 | } |
6861 | | |
6862 | | QualType Sema::BuildAddressSpaceAttr(QualType &T, Expr *AddrSpace, |
6863 | 26 | SourceLocation AttrLoc) { |
6864 | 26 | LangAS ASIdx; |
6865 | 26 | if (!BuildAddressSpaceIndex(*this, ASIdx, AddrSpace, AttrLoc)) |
6866 | 2 | return QualType(); |
6867 | 24 | return BuildAddressSpaceAttr(T, ASIdx, AddrSpace, AttrLoc); |
6868 | 26 | } |
6869 | | |
6870 | | static void HandleBTFTypeTagAttribute(QualType &Type, const ParsedAttr &Attr, |
6871 | 68 | TypeProcessingState &State) { |
6872 | 68 | Sema &S = State.getSema(); |
6873 | | |
6874 | | // Check the number of attribute arguments. |
6875 | 68 | if (Attr.getNumArgs() != 1) { |
6876 | 1 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) |
6877 | 1 | << Attr << 1; |
6878 | 1 | Attr.setInvalid(); |
6879 | 1 | return; |
6880 | 1 | } |
6881 | | |
6882 | | // Ensure the argument is a string. |
6883 | 67 | auto *StrLiteral = dyn_cast<StringLiteral>(Attr.getArgAsExpr(0)); |
6884 | 67 | if (!StrLiteral) { |
6885 | 0 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) |
6886 | 0 | << Attr << AANT_ArgumentString; |
6887 | 0 | Attr.setInvalid(); |
6888 | 0 | return; |
6889 | 0 | } |
6890 | | |
6891 | 67 | ASTContext &Ctx = S.Context; |
6892 | 67 | StringRef BTFTypeTag = StrLiteral->getString(); |
6893 | 67 | Type = State.getBTFTagAttributedType( |
6894 | 67 | ::new (Ctx) BTFTypeTagAttr(Ctx, Attr, BTFTypeTag), Type); |
6895 | 67 | } |
6896 | | |
6897 | | /// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the |
6898 | | /// specified type. The attribute contains 1 argument, the id of the address |
6899 | | /// space for the type. |
6900 | | static void HandleAddressSpaceTypeAttribute(QualType &Type, |
6901 | | const ParsedAttr &Attr, |
6902 | 43.2k | TypeProcessingState &State) { |
6903 | 43.2k | Sema &S = State.getSema(); |
6904 | | |
6905 | | // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be |
6906 | | // qualified by an address-space qualifier." |
6907 | 43.2k | if (Type->isFunctionType()) { |
6908 | 4 | S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); |
6909 | 4 | Attr.setInvalid(); |
6910 | 4 | return; |
6911 | 4 | } |
6912 | | |
6913 | 43.2k | LangAS ASIdx; |
6914 | 43.2k | if (Attr.getKind() == ParsedAttr::AT_AddressSpace) { |
6915 | | |
6916 | | // Check the attribute arguments. |
6917 | 1.01k | if (Attr.getNumArgs() != 1) { |
6918 | 0 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Attr |
6919 | 0 | << 1; |
6920 | 0 | Attr.setInvalid(); |
6921 | 0 | return; |
6922 | 0 | } |
6923 | | |
6924 | 1.01k | Expr *ASArgExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); |
6925 | 1.01k | LangAS ASIdx; |
6926 | 1.01k | if (!BuildAddressSpaceIndex(S, ASIdx, ASArgExpr, Attr.getLoc())) { |
6927 | 5 | Attr.setInvalid(); |
6928 | 5 | return; |
6929 | 5 | } |
6930 | | |
6931 | 1.00k | ASTContext &Ctx = S.Context; |
6932 | 1.00k | auto *ASAttr = |
6933 | 1.00k | ::new (Ctx) AddressSpaceAttr(Ctx, Attr, static_cast<unsigned>(ASIdx)); |
6934 | | |
6935 | | // If the expression is not value dependent (not templated), then we can |
6936 | | // apply the address space qualifiers just to the equivalent type. |
6937 | | // Otherwise, we make an AttributedType with the modified and equivalent |
6938 | | // type the same, and wrap it in a DependentAddressSpaceType. When this |
6939 | | // dependent type is resolved, the qualifier is added to the equivalent type |
6940 | | // later. |
6941 | 1.00k | QualType T; |
6942 | 1.00k | if (!ASArgExpr->isValueDependent()) { |
6943 | 955 | QualType EquivType = |
6944 | 955 | S.BuildAddressSpaceAttr(Type, ASIdx, ASArgExpr, Attr.getLoc()); |
6945 | 955 | if (EquivType.isNull()) { |
6946 | 2 | Attr.setInvalid(); |
6947 | 2 | return; |
6948 | 2 | } |
6949 | 953 | T = State.getAttributedType(ASAttr, Type, EquivType); |
6950 | 953 | } else { |
6951 | 53 | T = State.getAttributedType(ASAttr, Type, Type); |
6952 | 53 | T = S.BuildAddressSpaceAttr(T, ASIdx, ASArgExpr, Attr.getLoc()); |
6953 | 53 | } |
6954 | | |
6955 | 1.00k | if (!T.isNull()) |
6956 | 1.00k | Type = T; |
6957 | 2 | else |
6958 | 2 | Attr.setInvalid(); |
6959 | 42.2k | } else { |
6960 | | // The keyword-based type attributes imply which address space to use. |
6961 | 42.2k | ASIdx = S.getLangOpts().SYCLIsDevice ? Attr.asSYCLLangAS()38 |
6962 | 42.2k | : Attr.asOpenCLLangAS()42.1k ; |
6963 | 42.2k | if (S.getLangOpts().HLSL) |
6964 | 40 | ASIdx = Attr.asHLSLLangAS(); |
6965 | | |
6966 | 42.2k | if (ASIdx == LangAS::Default) |
6967 | 0 | llvm_unreachable("Invalid address space"); |
6968 | | |
6969 | 42.2k | if (DiagnoseMultipleAddrSpaceAttributes(S, Type.getAddressSpace(), ASIdx, |
6970 | 42.2k | Attr.getLoc())) { |
6971 | 46 | Attr.setInvalid(); |
6972 | 46 | return; |
6973 | 46 | } |
6974 | | |
6975 | 42.1k | Type = S.Context.getAddrSpaceQualType(Type, ASIdx); |
6976 | 42.1k | } |
6977 | 43.2k | } |
6978 | | |
6979 | | /// handleObjCOwnershipTypeAttr - Process an objc_ownership |
6980 | | /// attribute on the specified type. |
6981 | | /// |
6982 | | /// Returns 'true' if the attribute was handled. |
6983 | | static bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, |
6984 | 7.94k | ParsedAttr &attr, QualType &type) { |
6985 | 7.94k | bool NonObjCPointer = false; |
6986 | | |
6987 | 7.94k | if (!type->isDependentType() && !type->isUndeducedType()7.89k ) { |
6988 | 7.89k | if (const PointerType *ptr = type->getAs<PointerType>()) { |
6989 | 25 | QualType pointee = ptr->getPointeeType(); |
6990 | 25 | if (pointee->isObjCRetainableType() || pointee->isPointerType()) |
6991 | 0 | return false; |
6992 | | // It is important not to lose the source info that there was an attribute |
6993 | | // applied to non-objc pointer. We will create an attributed type but |
6994 | | // its type will be the same as the original type. |
6995 | 25 | NonObjCPointer = true; |
6996 | 7.86k | } else if (!type->isObjCRetainableType()) { |
6997 | 1.54k | return false; |
6998 | 1.54k | } |
6999 | | |
7000 | | // Don't accept an ownership attribute in the declspec if it would |
7001 | | // just be the return type of a block pointer. |
7002 | 6.34k | if (state.isProcessingDeclSpec()) { |
7003 | 3.84k | Declarator &D = state.getDeclarator(); |
7004 | 3.84k | if (maybeMovePastReturnType(D, D.getNumTypeObjects(), |
7005 | 3.84k | /*onlyBlockPointers=*/true)) |
7006 | 6 | return false; |
7007 | 3.84k | } |
7008 | 6.34k | } |
7009 | | |
7010 | 6.39k | Sema &S = state.getSema(); |
7011 | 6.39k | SourceLocation AttrLoc = attr.getLoc(); |
7012 | 6.39k | if (AttrLoc.isMacroID()) |
7013 | 5.61k | AttrLoc = |
7014 | 5.61k | S.getSourceManager().getImmediateExpansionRange(AttrLoc).getBegin(); |
7015 | | |
7016 | 6.39k | if (!attr.isArgIdent(0)) { |
7017 | 0 | S.Diag(AttrLoc, diag::err_attribute_argument_type) << attr |
7018 | 0 | << AANT_ArgumentString; |
7019 | 0 | attr.setInvalid(); |
7020 | 0 | return true; |
7021 | 0 | } |
7022 | | |
7023 | 6.39k | IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; |
7024 | 6.39k | Qualifiers::ObjCLifetime lifetime; |
7025 | 6.39k | if (II->isStr("none")) |
7026 | 2.62k | lifetime = Qualifiers::OCL_ExplicitNone; |
7027 | 3.76k | else if (II->isStr("strong")) |
7028 | 1.78k | lifetime = Qualifiers::OCL_Strong; |
7029 | 1.98k | else if (II->isStr("weak")) |
7030 | 878 | lifetime = Qualifiers::OCL_Weak; |
7031 | 1.10k | else if (II->isStr("autoreleasing")) |
7032 | 1.10k | lifetime = Qualifiers::OCL_Autoreleasing; |
7033 | 1 | else { |
7034 | 1 | S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) << attr << II; |
7035 | 1 | attr.setInvalid(); |
7036 | 1 | return true; |
7037 | 1 | } |
7038 | | |
7039 | | // Just ignore lifetime attributes other than __weak and __unsafe_unretained |
7040 | | // outside of ARC mode. |
7041 | 6.39k | if (!S.getLangOpts().ObjCAutoRefCount && |
7042 | 6.39k | lifetime != Qualifiers::OCL_Weak3.63k && |
7043 | 6.39k | lifetime != Qualifiers::OCL_ExplicitNone3.46k ) { |
7044 | 1.21k | return true; |
7045 | 1.21k | } |
7046 | | |
7047 | 5.17k | SplitQualType underlyingType = type.split(); |
7048 | | |
7049 | | // Check for redundant/conflicting ownership qualifiers. |
7050 | 5.17k | if (Qualifiers::ObjCLifetime previousLifetime |
7051 | 5.17k | = type.getQualifiers().getObjCLifetime()) { |
7052 | | // If it's written directly, that's an error. |
7053 | 26 | if (S.Context.hasDirectOwnershipQualifier(type)) { |
7054 | 9 | S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) |
7055 | 9 | << type; |
7056 | 9 | return true; |
7057 | 9 | } |
7058 | | |
7059 | | // Otherwise, if the qualifiers actually conflict, pull sugar off |
7060 | | // and remove the ObjCLifetime qualifiers. |
7061 | 17 | if (previousLifetime != lifetime) { |
7062 | | // It's possible to have multiple local ObjCLifetime qualifiers. We |
7063 | | // can't stop after we reach a type that is directly qualified. |
7064 | 13 | const Type *prevTy = nullptr; |
7065 | 64 | while (!prevTy || prevTy != underlyingType.Ty51 ) { |
7066 | 51 | prevTy = underlyingType.Ty; |
7067 | 51 | underlyingType = underlyingType.getSingleStepDesugaredType(); |
7068 | 51 | } |
7069 | 13 | underlyingType.Quals.removeObjCLifetime(); |
7070 | 13 | } |
7071 | 17 | } |
7072 | | |
7073 | 5.16k | underlyingType.Quals.addObjCLifetime(lifetime); |
7074 | | |
7075 | 5.16k | if (NonObjCPointer) { |
7076 | 25 | StringRef name = attr.getAttrName()->getName(); |
7077 | 25 | switch (lifetime) { |
7078 | 0 | case Qualifiers::OCL_None: |
7079 | 0 | case Qualifiers::OCL_ExplicitNone: |
7080 | 0 | break; |
7081 | 24 | case Qualifiers::OCL_Strong: name = "__strong"; break; |
7082 | 1 | case Qualifiers::OCL_Weak: name = "__weak"; break; |
7083 | 0 | case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; |
7084 | 25 | } |
7085 | 25 | S.Diag(AttrLoc, diag::warn_type_attribute_wrong_type) << name |
7086 | 25 | << TDS_ObjCObjOrBlock << type; |
7087 | 25 | } |
7088 | | |
7089 | | // Don't actually add the __unsafe_unretained qualifier in non-ARC files, |
7090 | | // because having both 'T' and '__unsafe_unretained T' exist in the type |
7091 | | // system causes unfortunate widespread consistency problems. (For example, |
7092 | | // they're not considered compatible types, and we mangle them identicially |
7093 | | // as template arguments.) These problems are all individually fixable, |
7094 | | // but it's easier to just not add the qualifier and instead sniff it out |
7095 | | // in specific places using isObjCInertUnsafeUnretainedType(). |
7096 | | // |
7097 | | // Doing this does means we miss some trivial consistency checks that |
7098 | | // would've triggered in ARC, but that's better than trying to solve all |
7099 | | // the coexistence problems with __unsafe_unretained. |
7100 | 5.16k | if (!S.getLangOpts().ObjCAutoRefCount && |
7101 | 5.16k | lifetime == Qualifiers::OCL_ExplicitNone2.41k ) { |
7102 | 2.24k | type = state.getAttributedType( |
7103 | 2.24k | createSimpleAttr<ObjCInertUnsafeUnretainedAttr>(S.Context, attr), |
7104 | 2.24k | type, type); |
7105 | 2.24k | return true; |
7106 | 2.24k | } |
7107 | | |
7108 | 2.91k | QualType origType = type; |
7109 | 2.91k | if (!NonObjCPointer) |
7110 | 2.89k | type = S.Context.getQualifiedType(underlyingType); |
7111 | | |
7112 | | // If we have a valid source location for the attribute, use an |
7113 | | // AttributedType instead. |
7114 | 2.91k | if (AttrLoc.isValid()) { |
7115 | 2.15k | type = state.getAttributedType(::new (S.Context) |
7116 | 2.15k | ObjCOwnershipAttr(S.Context, attr, II), |
7117 | 2.15k | origType, type); |
7118 | 2.15k | } |
7119 | | |
7120 | 2.91k | auto diagnoseOrDelay = [](Sema &S, SourceLocation loc, |
7121 | 2.91k | unsigned diagnostic, QualType type) { |
7122 | 39 | if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { |
7123 | 39 | S.DelayedDiagnostics.add( |
7124 | 39 | sema::DelayedDiagnostic::makeForbiddenType( |
7125 | 39 | S.getSourceManager().getExpansionLoc(loc), |
7126 | 39 | diagnostic, type, /*ignored*/ 0)); |
7127 | 39 | } else { |
7128 | 0 | S.Diag(loc, diagnostic); |
7129 | 0 | } |
7130 | 39 | }; |
7131 | | |
7132 | | // Sometimes, __weak isn't allowed. |
7133 | 2.91k | if (lifetime == Qualifiers::OCL_Weak && |
7134 | 2.91k | !S.getLangOpts().ObjCWeak878 && !NonObjCPointer40 ) { |
7135 | | |
7136 | | // Use a specialized diagnostic if the runtime just doesn't support them. |
7137 | 39 | unsigned diagnostic = |
7138 | 39 | (S.getLangOpts().ObjCWeakRuntime ? diag::err_arc_weak_disabled28 |
7139 | 39 | : diag::err_arc_weak_no_runtime11 ); |
7140 | | |
7141 | | // In any case, delay the diagnostic until we know what we're parsing. |
7142 | 39 | diagnoseOrDelay(S, AttrLoc, diagnostic, type); |
7143 | | |
7144 | 39 | attr.setInvalid(); |
7145 | 39 | return true; |
7146 | 39 | } |
7147 | | |
7148 | | // Forbid __weak for class objects marked as |
7149 | | // objc_arc_weak_reference_unavailable |
7150 | 2.87k | if (lifetime == Qualifiers::OCL_Weak) { |
7151 | 839 | if (const ObjCObjectPointerType *ObjT = |
7152 | 839 | type->getAs<ObjCObjectPointerType>()) { |
7153 | 810 | if (ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl()) { |
7154 | 226 | if (Class->isArcWeakrefUnavailable()) { |
7155 | 24 | S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); |
7156 | 24 | S.Diag(ObjT->getInterfaceDecl()->getLocation(), |
7157 | 24 | diag::note_class_declared); |
7158 | 24 | } |
7159 | 226 | } |
7160 | 810 | } |
7161 | 839 | } |
7162 | | |
7163 | 2.87k | return true; |
7164 | 2.91k | } |
7165 | | |
7166 | | /// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type |
7167 | | /// attribute on the specified type. Returns true to indicate that |
7168 | | /// the attribute was handled, false to indicate that the type does |
7169 | | /// not permit the attribute. |
7170 | | static bool handleObjCGCTypeAttr(TypeProcessingState &state, ParsedAttr &attr, |
7171 | 294 | QualType &type) { |
7172 | 294 | Sema &S = state.getSema(); |
7173 | | |
7174 | | // Delay if this isn't some kind of pointer. |
7175 | 294 | if (!type->isPointerType() && |
7176 | 294 | !type->isObjCObjectPointerType()209 && |
7177 | 294 | !type->isBlockPointerType()77 ) |
7178 | 75 | return false; |
7179 | | |
7180 | 219 | if (type.getObjCGCAttr() != Qualifiers::GCNone) { |
7181 | 0 | S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); |
7182 | 0 | attr.setInvalid(); |
7183 | 0 | return true; |
7184 | 0 | } |
7185 | | |
7186 | | // Check the attribute arguments. |
7187 | 219 | if (!attr.isArgIdent(0)) { |
7188 | 2 | S.Diag(attr.getLoc(), diag::err_attribute_argument_type) |
7189 | 2 | << attr << AANT_ArgumentString; |
7190 | 2 | attr.setInvalid(); |
7191 | 2 | return true; |
7192 | 2 | } |
7193 | 217 | Qualifiers::GC GCAttr; |
7194 | 217 | if (attr.getNumArgs() > 1) { |
7195 | 1 | S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << attr |
7196 | 1 | << 1; |
7197 | 1 | attr.setInvalid(); |
7198 | 1 | return true; |
7199 | 1 | } |
7200 | | |
7201 | 216 | IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; |
7202 | 216 | if (II->isStr("weak")) |
7203 | 101 | GCAttr = Qualifiers::Weak; |
7204 | 115 | else if (II->isStr("strong")) |
7205 | 114 | GCAttr = Qualifiers::Strong; |
7206 | 1 | else { |
7207 | 1 | S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) |
7208 | 1 | << attr << II; |
7209 | 1 | attr.setInvalid(); |
7210 | 1 | return true; |
7211 | 1 | } |
7212 | | |
7213 | 215 | QualType origType = type; |
7214 | 215 | type = S.Context.getObjCGCQualType(origType, GCAttr); |
7215 | | |
7216 | | // Make an attributed type to preserve the source information. |
7217 | 215 | if (attr.getLoc().isValid()) |
7218 | 215 | type = state.getAttributedType( |
7219 | 215 | ::new (S.Context) ObjCGCAttr(S.Context, attr, II), origType, type); |
7220 | | |
7221 | 215 | return true; |
7222 | 216 | } |
7223 | | |
7224 | | namespace { |
7225 | | /// A helper class to unwrap a type down to a function for the |
7226 | | /// purposes of applying attributes there. |
7227 | | /// |
7228 | | /// Use: |
7229 | | /// FunctionTypeUnwrapper unwrapped(SemaRef, T); |
7230 | | /// if (unwrapped.isFunctionType()) { |
7231 | | /// const FunctionType *fn = unwrapped.get(); |
7232 | | /// // change fn somehow |
7233 | | /// T = unwrapped.wrap(fn); |
7234 | | /// } |
7235 | | struct FunctionTypeUnwrapper { |
7236 | | enum WrapKind { |
7237 | | Desugar, |
7238 | | Attributed, |
7239 | | Parens, |
7240 | | Array, |
7241 | | Pointer, |
7242 | | BlockPointer, |
7243 | | Reference, |
7244 | | MemberPointer, |
7245 | | MacroQualified, |
7246 | | }; |
7247 | | |
7248 | | QualType Original; |
7249 | | const FunctionType *Fn; |
7250 | | SmallVector<unsigned char /*WrapKind*/, 8> Stack; |
7251 | | |
7252 | 3.00M | FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { |
7253 | 3.03M | while (true) { |
7254 | 3.03M | const Type *Ty = T.getTypePtr(); |
7255 | 3.03M | if (isa<FunctionType>(Ty)) { |
7256 | 3.00M | Fn = cast<FunctionType>(Ty); |
7257 | 3.00M | return; |
7258 | 3.00M | } else if (29.8k isa<ParenType>(Ty)29.8k ) { |
7259 | 27.9k | T = cast<ParenType>(Ty)->getInnerType(); |
7260 | 27.9k | Stack.push_back(Parens); |
7261 | 27.9k | } else if (1.89k isa<ConstantArrayType>(Ty)1.89k || isa<VariableArrayType>(Ty)1.86k || |
7262 | 1.89k | isa<IncompleteArrayType>(Ty)1.86k ) { |
7263 | 27 | T = cast<ArrayType>(Ty)->getElementType(); |
7264 | 27 | Stack.push_back(Array); |
7265 | 1.86k | } else if (isa<PointerType>(Ty)) { |
7266 | 91 | T = cast<PointerType>(Ty)->getPointeeType(); |
7267 | 91 | Stack.push_back(Pointer); |
7268 | 1.77k | } else if (isa<BlockPointerType>(Ty)) { |
7269 | 0 | T = cast<BlockPointerType>(Ty)->getPointeeType(); |
7270 | 0 | Stack.push_back(BlockPointer); |
7271 | 1.77k | } else if (isa<MemberPointerType>(Ty)) { |
7272 | 0 | T = cast<MemberPointerType>(Ty)->getPointeeType(); |
7273 | 0 | Stack.push_back(MemberPointer); |
7274 | 1.77k | } else if (isa<ReferenceType>(Ty)) { |
7275 | 10 | T = cast<ReferenceType>(Ty)->getPointeeType(); |
7276 | 10 | Stack.push_back(Reference); |
7277 | 1.76k | } else if (isa<AttributedType>(Ty)) { |
7278 | 889 | T = cast<AttributedType>(Ty)->getEquivalentType(); |
7279 | 889 | Stack.push_back(Attributed); |
7280 | 889 | } else if (874 isa<MacroQualifiedType>(Ty)874 ) { |
7281 | 551 | T = cast<MacroQualifiedType>(Ty)->getUnderlyingType(); |
7282 | 551 | Stack.push_back(MacroQualified); |
7283 | 551 | } else { |
7284 | 323 | const Type *DTy = Ty->getUnqualifiedDesugaredType(); |
7285 | 323 | if (Ty == DTy) { |
7286 | 166 | Fn = nullptr; |
7287 | 166 | return; |
7288 | 166 | } |
7289 | | |
7290 | 157 | T = QualType(DTy, 0); |
7291 | 157 | Stack.push_back(Desugar); |
7292 | 157 | } |
7293 | 3.03M | } |
7294 | 3.00M | } |
7295 | | |
7296 | 1.31M | bool isFunctionType() const { return (Fn != nullptr); } |
7297 | 4.28M | const FunctionType *get() const { return Fn; } |
7298 | | |
7299 | 1.27M | QualType wrap(Sema &S, const FunctionType *New) { |
7300 | | // If T wasn't modified from the unwrapped type, do nothing. |
7301 | 1.27M | if (New == get()) return Original28 ; |
7302 | | |
7303 | 1.27M | Fn = New; |
7304 | 1.27M | return wrap(S.Context, Original, 0); |
7305 | 1.27M | } |
7306 | | |
7307 | | private: |
7308 | 1.27M | QualType wrap(ASTContext &C, QualType Old, unsigned I) { |
7309 | 1.27M | if (I == Stack.size()) |
7310 | 1.27M | return C.getQualifiedType(Fn, Old.getQualifiers()); |
7311 | | |
7312 | | // Build up the inner type, applying the qualifiers from the old |
7313 | | // type to the new type. |
7314 | 1.29k | SplitQualType SplitOld = Old.split(); |
7315 | | |
7316 | | // As a special case, tail-recurse if there are no qualifiers. |
7317 | 1.29k | if (SplitOld.Quals.empty()) |
7318 | 1.29k | return wrap(C, SplitOld.Ty, I); |
7319 | 0 | return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); |
7320 | 1.29k | } |
7321 | | |
7322 | 1.33k | QualType wrap(ASTContext &C, const Type *Old, unsigned I) { |
7323 | 1.33k | if (I == Stack.size()) return QualType(Fn, 0)38 ; |
7324 | | |
7325 | 1.29k | switch (static_cast<WrapKind>(Stack[I++])) { |
7326 | 43 | case Desugar: |
7327 | | // This is the point at which we potentially lose source |
7328 | | // information. |
7329 | 43 | return wrap(C, Old->getUnqualifiedDesugaredType(), I); |
7330 | | |
7331 | 530 | case Attributed: |
7332 | 530 | return wrap(C, cast<AttributedType>(Old)->getEquivalentType(), I); |
7333 | | |
7334 | 157 | case Parens: { |
7335 | 157 | QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); |
7336 | 157 | return C.getParenType(New); |
7337 | 0 | } |
7338 | | |
7339 | 522 | case MacroQualified: |
7340 | 522 | return wrap(C, cast<MacroQualifiedType>(Old)->getUnderlyingType(), I); |
7341 | | |
7342 | 3 | case Array: { |
7343 | 3 | if (const auto *CAT = dyn_cast<ConstantArrayType>(Old)) { |
7344 | 3 | QualType New = wrap(C, CAT->getElementType(), I); |
7345 | 3 | return C.getConstantArrayType(New, CAT->getSize(), CAT->getSizeExpr(), |
7346 | 3 | CAT->getSizeModifier(), |
7347 | 3 | CAT->getIndexTypeCVRQualifiers()); |
7348 | 3 | } |
7349 | | |
7350 | 0 | if (const auto *VAT = dyn_cast<VariableArrayType>(Old)) { |
7351 | 0 | QualType New = wrap(C, VAT->getElementType(), I); |
7352 | 0 | return C.getVariableArrayType( |
7353 | 0 | New, VAT->getSizeExpr(), VAT->getSizeModifier(), |
7354 | 0 | VAT->getIndexTypeCVRQualifiers(), VAT->getBracketsRange()); |
7355 | 0 | } |
7356 | | |
7357 | 0 | const auto *IAT = cast<IncompleteArrayType>(Old); |
7358 | 0 | QualType New = wrap(C, IAT->getElementType(), I); |
7359 | 0 | return C.getIncompleteArrayType(New, IAT->getSizeModifier(), |
7360 | 0 | IAT->getIndexTypeCVRQualifiers()); |
7361 | 0 | } |
7362 | | |
7363 | 42 | case Pointer: { |
7364 | 42 | QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); |
7365 | 42 | return C.getPointerType(New); |
7366 | 0 | } |
7367 | | |
7368 | 0 | case BlockPointer: { |
7369 | 0 | QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); |
7370 | 0 | return C.getBlockPointerType(New); |
7371 | 0 | } |
7372 | | |
7373 | 0 | case MemberPointer: { |
7374 | 0 | const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); |
7375 | 0 | QualType New = wrap(C, OldMPT->getPointeeType(), I); |
7376 | 0 | return C.getMemberPointerType(New, OldMPT->getClass()); |
7377 | 0 | } |
7378 | | |
7379 | 0 | case Reference: { |
7380 | 0 | const ReferenceType *OldRef = cast<ReferenceType>(Old); |
7381 | 0 | QualType New = wrap(C, OldRef->getPointeeType(), I); |
7382 | 0 | if (isa<LValueReferenceType>(OldRef)) |
7383 | 0 | return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); |
7384 | 0 | else |
7385 | 0 | return C.getRValueReferenceType(New); |
7386 | 0 | } |
7387 | 1.29k | } |
7388 | | |
7389 | 0 | llvm_unreachable("unknown wrapping kind"); |
7390 | 0 | } |
7391 | | }; |
7392 | | } // end anonymous namespace |
7393 | | |
7394 | | static bool handleMSPointerTypeQualifierAttr(TypeProcessingState &State, |
7395 | 147 | ParsedAttr &PAttr, QualType &Type) { |
7396 | 147 | Sema &S = State.getSema(); |
7397 | | |
7398 | 147 | Attr *A; |
7399 | 147 | switch (PAttr.getKind()) { |
7400 | 0 | default: llvm_unreachable("Unknown attribute kind"); |
7401 | 67 | case ParsedAttr::AT_Ptr32: |
7402 | 67 | A = createSimpleAttr<Ptr32Attr>(S.Context, PAttr); |
7403 | 67 | break; |
7404 | 38 | case ParsedAttr::AT_Ptr64: |
7405 | 38 | A = createSimpleAttr<Ptr64Attr>(S.Context, PAttr); |
7406 | 38 | break; |
7407 | 24 | case ParsedAttr::AT_SPtr: |
7408 | 24 | A = createSimpleAttr<SPtrAttr>(S.Context, PAttr); |
7409 | 24 | break; |
7410 | 18 | case ParsedAttr::AT_UPtr: |
7411 | 18 | A = createSimpleAttr<UPtrAttr>(S.Context, PAttr); |
7412 | 18 | break; |
7413 | 147 | } |
7414 | | |
7415 | 147 | std::bitset<attr::LastAttr> Attrs; |
7416 | 147 | QualType Desugared = Type; |
7417 | 205 | for (;;) { |
7418 | 205 | if (const TypedefType *TT = dyn_cast<TypedefType>(Desugared)) { |
7419 | 9 | Desugared = TT->desugar(); |
7420 | 9 | continue; |
7421 | 196 | } else if (const ElaboratedType *ET = dyn_cast<ElaboratedType>(Desugared)) { |
7422 | 9 | Desugared = ET->desugar(); |
7423 | 9 | continue; |
7424 | 9 | } |
7425 | 187 | const AttributedType *AT = dyn_cast<AttributedType>(Desugared); |
7426 | 187 | if (!AT) |
7427 | 147 | break; |
7428 | 40 | Attrs[AT->getAttrKind()] = true; |
7429 | 40 | Desugared = AT->getModifiedType(); |
7430 | 40 | } |
7431 | | |
7432 | | // You cannot specify duplicate type attributes, so if the attribute has |
7433 | | // already been applied, flag it. |
7434 | 147 | attr::Kind NewAttrKind = A->getKind(); |
7435 | 147 | if (Attrs[NewAttrKind]) { |
7436 | 5 | S.Diag(PAttr.getLoc(), diag::warn_duplicate_attribute_exact) << PAttr; |
7437 | 5 | return true; |
7438 | 5 | } |
7439 | 142 | Attrs[NewAttrKind] = true; |
7440 | | |
7441 | | // You cannot have both __sptr and __uptr on the same type, nor can you |
7442 | | // have __ptr32 and __ptr64. |
7443 | 142 | if (Attrs[attr::Ptr32] && Attrs[attr::Ptr64]89 ) { |
7444 | 5 | S.Diag(PAttr.getLoc(), diag::err_attributes_are_not_compatible) |
7445 | 5 | << "'__ptr32'" |
7446 | 5 | << "'__ptr64'" << /*isRegularKeyword=*/0; |
7447 | 5 | return true; |
7448 | 137 | } else if (Attrs[attr::SPtr] && Attrs[attr::UPtr]27 ) { |
7449 | 1 | S.Diag(PAttr.getLoc(), diag::err_attributes_are_not_compatible) |
7450 | 1 | << "'__sptr'" |
7451 | 1 | << "'__uptr'" << /*isRegularKeyword=*/0; |
7452 | 1 | return true; |
7453 | 1 | } |
7454 | | |
7455 | | // Check the raw (i.e., desugared) Canonical type to see if it |
7456 | | // is a pointer type. |
7457 | 136 | if (!isa<PointerType>(Desugared)) { |
7458 | | // Pointer type qualifiers can only operate on pointer types, but not |
7459 | | // pointer-to-member types. |
7460 | 13 | if (Type->isMemberPointerType()) |
7461 | 1 | S.Diag(PAttr.getLoc(), diag::err_attribute_no_member_pointers) << PAttr; |
7462 | 12 | else |
7463 | 12 | S.Diag(PAttr.getLoc(), diag::err_attribute_pointers_only) << PAttr << 0; |
7464 | 13 | return true; |
7465 | 13 | } |
7466 | | |
7467 | | // Add address space to type based on its attributes. |
7468 | 123 | LangAS ASIdx = LangAS::Default; |
7469 | 123 | uint64_t PtrWidth = |
7470 | 123 | S.Context.getTargetInfo().getPointerWidth(LangAS::Default); |
7471 | 123 | if (PtrWidth == 32) { |
7472 | 65 | if (Attrs[attr::Ptr64]) |
7473 | 16 | ASIdx = LangAS::ptr64; |
7474 | 49 | else if (Attrs[attr::UPtr]) |
7475 | 9 | ASIdx = LangAS::ptr32_uptr; |
7476 | 65 | } else if (58 PtrWidth == 6458 && Attrs[attr::Ptr32]58 ) { |
7477 | 38 | if (Attrs[attr::UPtr]) |
7478 | 8 | ASIdx = LangAS::ptr32_uptr; |
7479 | 30 | else |
7480 | 30 | ASIdx = LangAS::ptr32_sptr; |
7481 | 38 | } |
7482 | | |
7483 | 123 | QualType Pointee = Type->getPointeeType(); |
7484 | 123 | if (ASIdx != LangAS::Default) |
7485 | 63 | Pointee = S.Context.getAddrSpaceQualType( |
7486 | 63 | S.Context.removeAddrSpaceQualType(Pointee), ASIdx); |
7487 | 123 | Type = State.getAttributedType(A, Type, S.Context.getPointerType(Pointee)); |
7488 | 123 | return false; |
7489 | 136 | } |
7490 | | |
7491 | | static bool HandleWebAssemblyFuncrefAttr(TypeProcessingState &State, |
7492 | 10 | QualType &QT, ParsedAttr &PAttr) { |
7493 | 10 | assert(PAttr.getKind() == ParsedAttr::AT_WebAssemblyFuncref); |
7494 | | |
7495 | 10 | Sema &S = State.getSema(); |
7496 | 10 | Attr *A = createSimpleAttr<WebAssemblyFuncrefAttr>(S.Context, PAttr); |
7497 | | |
7498 | 10 | std::bitset<attr::LastAttr> Attrs; |
7499 | 10 | attr::Kind NewAttrKind = A->getKind(); |
7500 | 10 | const auto *AT = dyn_cast<AttributedType>(QT); |
7501 | 12 | while (AT) { |
7502 | 2 | Attrs[AT->getAttrKind()] = true; |
7503 | 2 | AT = dyn_cast<AttributedType>(AT->getModifiedType()); |
7504 | 2 | } |
7505 | | |
7506 | | // You cannot specify duplicate type attributes, so if the attribute has |
7507 | | // already been applied, flag it. |
7508 | 10 | if (Attrs[NewAttrKind]) { |
7509 | 2 | S.Diag(PAttr.getLoc(), diag::warn_duplicate_attribute_exact) << PAttr; |
7510 | 2 | return true; |
7511 | 2 | } |
7512 | | |
7513 | | // Add address space to type based on its attributes. |
7514 | 8 | LangAS ASIdx = LangAS::wasm_funcref; |
7515 | 8 | QualType Pointee = QT->getPointeeType(); |
7516 | 8 | Pointee = S.Context.getAddrSpaceQualType( |
7517 | 8 | S.Context.removeAddrSpaceQualType(Pointee), ASIdx); |
7518 | 8 | QT = State.getAttributedType(A, QT, S.Context.getPointerType(Pointee)); |
7519 | 8 | return false; |
7520 | 10 | } |
7521 | | |
7522 | | /// Map a nullability attribute kind to a nullability kind. |
7523 | 2.04M | static NullabilityKind mapNullabilityAttrKind(ParsedAttr::Kind kind) { |
7524 | 2.04M | switch (kind) { |
7525 | 1.04M | case ParsedAttr::AT_TypeNonNull: |
7526 | 1.04M | return NullabilityKind::NonNull; |
7527 | | |
7528 | 952k | case ParsedAttr::AT_TypeNullable: |
7529 | 952k | return NullabilityKind::Nullable; |
7530 | | |
7531 | 21 | case ParsedAttr::AT_TypeNullableResult: |
7532 | 21 | return NullabilityKind::NullableResult; |
7533 | | |
7534 | 43.7k | case ParsedAttr::AT_TypeNullUnspecified: |
7535 | 43.7k | return NullabilityKind::Unspecified; |
7536 | | |
7537 | 0 | default: |
7538 | 0 | llvm_unreachable("not a nullability attribute kind"); |
7539 | 2.04M | } |
7540 | 2.04M | } |
7541 | | |
7542 | | /// Applies a nullability type specifier to the given type, if possible. |
7543 | | /// |
7544 | | /// \param state The type processing state. |
7545 | | /// |
7546 | | /// \param type The type to which the nullability specifier will be |
7547 | | /// added. On success, this type will be updated appropriately. |
7548 | | /// |
7549 | | /// \param attr The attribute as written on the type. |
7550 | | /// |
7551 | | /// \param allowOnArrayType Whether to accept nullability specifiers on an |
7552 | | /// array type (e.g., because it will decay to a pointer). |
7553 | | /// |
7554 | | /// \returns true if a problem has been diagnosed, false on success. |
7555 | | static bool checkNullabilityTypeSpecifier(TypeProcessingState &state, |
7556 | | QualType &type, |
7557 | | ParsedAttr &attr, |
7558 | 2.04M | bool allowOnArrayType) { |
7559 | 2.04M | Sema &S = state.getSema(); |
7560 | | |
7561 | 2.04M | NullabilityKind nullability = mapNullabilityAttrKind(attr.getKind()); |
7562 | 2.04M | SourceLocation nullabilityLoc = attr.getLoc(); |
7563 | 2.04M | bool isContextSensitive = attr.isContextSensitiveKeywordAttribute(); |
7564 | | |
7565 | 2.04M | recordNullabilitySeen(S, nullabilityLoc); |
7566 | | |
7567 | | // Check for existing nullability attributes on the type. |
7568 | 2.04M | QualType desugared = type; |
7569 | 2.04M | while (auto attributed = dyn_cast<AttributedType>(desugared.getTypePtr())) { |
7570 | | // Check whether there is already a null |
7571 | 1.18k | if (auto existingNullability = attributed->getImmediateNullability()) { |
7572 | | // Duplicated nullability. |
7573 | 16 | if (nullability == *existingNullability) { |
7574 | 6 | S.Diag(nullabilityLoc, diag::warn_nullability_duplicate) |
7575 | 6 | << DiagNullabilityKind(nullability, isContextSensitive) |
7576 | 6 | << FixItHint::CreateRemoval(nullabilityLoc); |
7577 | | |
7578 | 6 | break; |
7579 | 6 | } |
7580 | | |
7581 | | // Conflicting nullability. |
7582 | 10 | S.Diag(nullabilityLoc, diag::err_nullability_conflicting) |
7583 | 10 | << DiagNullabilityKind(nullability, isContextSensitive) |
7584 | 10 | << DiagNullabilityKind(*existingNullability, false); |
7585 | 10 | return true; |
7586 | 16 | } |
7587 | | |
7588 | 1.16k | desugared = attributed->getModifiedType(); |
7589 | 1.16k | } |
7590 | | |
7591 | | // If there is already a different nullability specifier, complain. |
7592 | | // This (unlike the code above) looks through typedefs that might |
7593 | | // have nullability specifiers on them, which means we cannot |
7594 | | // provide a useful Fix-It. |
7595 | 2.04M | if (auto existingNullability = desugared->getNullability()) { |
7596 | 14 | if (nullability != *existingNullability) { |
7597 | 3 | S.Diag(nullabilityLoc, diag::err_nullability_conflicting) |
7598 | 3 | << DiagNullabilityKind(nullability, isContextSensitive) |
7599 | 3 | << DiagNullabilityKind(*existingNullability, false); |
7600 | | |
7601 | | // Try to find the typedef with the existing nullability specifier. |
7602 | 3 | if (auto typedefType = desugared->getAs<TypedefType>()) { |
7603 | 3 | TypedefNameDecl *typedefDecl = typedefType->getDecl(); |
7604 | 3 | QualType underlyingType = typedefDecl->getUnderlyingType(); |
7605 | 3 | if (auto typedefNullability |
7606 | 3 | = AttributedType::stripOuterNullability(underlyingType)) { |
7607 | 1 | if (*typedefNullability == *existingNullability) { |
7608 | 1 | S.Diag(typedefDecl->getLocation(), diag::note_nullability_here) |
7609 | 1 | << DiagNullabilityKind(*existingNullability, false); |
7610 | 1 | } |
7611 | 1 | } |
7612 | 3 | } |
7613 | | |
7614 | 3 | return true; |
7615 | 3 | } |
7616 | 14 | } |
7617 | | |
7618 | | // If this definitely isn't a pointer type, reject the specifier. |
7619 | 2.04M | if (!desugared->canHaveNullability() && |
7620 | 2.04M | !(13.6k allowOnArrayType13.6k && desugared->isArrayType()13.5k )) { |
7621 | 39 | S.Diag(nullabilityLoc, diag::err_nullability_nonpointer) |
7622 | 39 | << DiagNullabilityKind(nullability, isContextSensitive) << type; |
7623 | 39 | return true; |
7624 | 39 | } |
7625 | | |
7626 | | // For the context-sensitive keywords/Objective-C property |
7627 | | // attributes, require that the type be a single-level pointer. |
7628 | 2.04M | if (isContextSensitive) { |
7629 | | // Make sure that the pointee isn't itself a pointer type. |
7630 | 918k | const Type *pointeeType = nullptr; |
7631 | 918k | if (desugared->isArrayType()) |
7632 | 3 | pointeeType = desugared->getArrayElementTypeNoTypeQual(); |
7633 | 918k | else if (desugared->isAnyPointerType()) |
7634 | 884k | pointeeType = desugared->getPointeeType().getTypePtr(); |
7635 | | |
7636 | 918k | if (pointeeType && (884k pointeeType->isAnyPointerType()884k || |
7637 | 884k | pointeeType->isObjCObjectPointerType()884k || |
7638 | 884k | pointeeType->isMemberPointerType()884k )) { |
7639 | 4 | S.Diag(nullabilityLoc, diag::err_nullability_cs_multilevel) |
7640 | 4 | << DiagNullabilityKind(nullability, true) |
7641 | 4 | << type; |
7642 | 4 | S.Diag(nullabilityLoc, diag::note_nullability_type_specifier) |
7643 | 4 | << DiagNullabilityKind(nullability, false) |
7644 | 4 | << type |
7645 | 4 | << FixItHint::CreateReplacement(nullabilityLoc, |
7646 | 4 | getNullabilitySpelling(nullability)); |
7647 | 4 | return true; |
7648 | 4 | } |
7649 | 918k | } |
7650 | | |
7651 | | // Form the attributed type. |
7652 | 2.04M | type = state.getAttributedType( |
7653 | 2.04M | createNullabilityAttr(S.Context, attr, nullability), type, type); |
7654 | 2.04M | return false; |
7655 | 2.04M | } |
7656 | | |
7657 | | /// Check the application of the Objective-C '__kindof' qualifier to |
7658 | | /// the given type. |
7659 | | static bool checkObjCKindOfType(TypeProcessingState &state, QualType &type, |
7660 | 1.84k | ParsedAttr &attr) { |
7661 | 1.84k | Sema &S = state.getSema(); |
7662 | | |
7663 | 1.84k | if (isa<ObjCTypeParamType>(type)) { |
7664 | | // Build the attributed type to record where __kindof occurred. |
7665 | 5 | type = state.getAttributedType( |
7666 | 5 | createSimpleAttr<ObjCKindOfAttr>(S.Context, attr), type, type); |
7667 | 5 | return false; |
7668 | 5 | } |
7669 | | |
7670 | | // Find out if it's an Objective-C object or object pointer type; |
7671 | 1.84k | const ObjCObjectPointerType *ptrType = type->getAs<ObjCObjectPointerType>(); |
7672 | 1.84k | const ObjCObjectType *objType = ptrType ? ptrType->getObjectType()707 |
7673 | 1.84k | : type->getAs<ObjCObjectType>()1.13k ; |
7674 | | |
7675 | | // If not, we can't apply __kindof. |
7676 | 1.84k | if (!objType) { |
7677 | | // FIXME: Handle dependent types that aren't yet object types. |
7678 | 2 | S.Diag(attr.getLoc(), diag::err_objc_kindof_nonobject) |
7679 | 2 | << type; |
7680 | 2 | return true; |
7681 | 2 | } |
7682 | | |
7683 | | // Rebuild the "equivalent" type, which pushes __kindof down into |
7684 | | // the object type. |
7685 | | // There is no need to apply kindof on an unqualified id type. |
7686 | 1.84k | QualType equivType = S.Context.getObjCObjectType( |
7687 | 1.84k | objType->getBaseType(), objType->getTypeArgsAsWritten(), |
7688 | 1.84k | objType->getProtocols(), |
7689 | 1.84k | /*isKindOf=*/objType->isObjCUnqualifiedId() ? false4 : true1.83k ); |
7690 | | |
7691 | | // If we started with an object pointer type, rebuild it. |
7692 | 1.84k | if (ptrType) { |
7693 | 707 | equivType = S.Context.getObjCObjectPointerType(equivType); |
7694 | 707 | if (auto nullability = type->getNullability()) { |
7695 | | // We create a nullability attribute from the __kindof attribute. |
7696 | | // Make sure that will make sense. |
7697 | 219 | assert(attr.getAttributeSpellingListIndex() == 0 && |
7698 | 219 | "multiple spellings for __kindof?"); |
7699 | 219 | Attr *A = createNullabilityAttr(S.Context, attr, *nullability); |
7700 | 219 | A->setImplicit(true); |
7701 | 219 | equivType = state.getAttributedType(A, equivType, equivType); |
7702 | 219 | } |
7703 | 707 | } |
7704 | | |
7705 | | // Build the attributed type to record where __kindof occurred. |
7706 | 1.84k | type = state.getAttributedType( |
7707 | 1.84k | createSimpleAttr<ObjCKindOfAttr>(S.Context, attr), type, equivType); |
7708 | 1.84k | return false; |
7709 | 1.84k | } |
7710 | | |
7711 | | /// Distribute a nullability type attribute that cannot be applied to |
7712 | | /// the type specifier to a pointer, block pointer, or member pointer |
7713 | | /// declarator, complaining if necessary. |
7714 | | /// |
7715 | | /// \returns true if the nullability annotation was distributed, false |
7716 | | /// otherwise. |
7717 | | static bool distributeNullabilityTypeAttr(TypeProcessingState &state, |
7718 | 67 | QualType type, ParsedAttr &attr) { |
7719 | 67 | Declarator &declarator = state.getDeclarator(); |
7720 | | |
7721 | | /// Attempt to move the attribute to the specified chunk. |
7722 | 67 | auto moveToChunk = [&](DeclaratorChunk &chunk, bool inFunction) -> bool { |
7723 | | // If there is already a nullability attribute there, don't add |
7724 | | // one. |
7725 | 49 | if (hasNullabilityAttr(chunk.getAttrs())) |
7726 | 2 | return false; |
7727 | | |
7728 | | // Complain about the nullability qualifier being in the wrong |
7729 | | // place. |
7730 | 47 | enum { |
7731 | 47 | PK_Pointer, |
7732 | 47 | PK_BlockPointer, |
7733 | 47 | PK_MemberPointer, |
7734 | 47 | PK_FunctionPointer, |
7735 | 47 | PK_MemberFunctionPointer, |
7736 | 47 | } pointerKind |
7737 | 47 | = chunk.Kind == DeclaratorChunk::Pointer ? (39 inFunction39 ? PK_FunctionPointer4 |
7738 | 39 | : PK_Pointer35 ) |
7739 | 47 | : chunk.Kind == DeclaratorChunk::BlockPointer8 ? PK_BlockPointer4 |
7740 | 8 | : inFunction4 ? PK_MemberFunctionPointer2 : PK_MemberPointer2 ; |
7741 | | |
7742 | 47 | auto diag = state.getSema().Diag(attr.getLoc(), |
7743 | 47 | diag::warn_nullability_declspec) |
7744 | 47 | << DiagNullabilityKind(mapNullabilityAttrKind(attr.getKind()), |
7745 | 47 | attr.isContextSensitiveKeywordAttribute()) |
7746 | 47 | << type |
7747 | 47 | << static_cast<unsigned>(pointerKind); |
7748 | | |
7749 | | // FIXME: MemberPointer chunks don't carry the location of the *. |
7750 | 47 | if (chunk.Kind != DeclaratorChunk::MemberPointer) { |
7751 | 43 | diag << FixItHint::CreateRemoval(attr.getLoc()) |
7752 | 43 | << FixItHint::CreateInsertion( |
7753 | 43 | state.getSema().getPreprocessor().getLocForEndOfToken( |
7754 | 43 | chunk.Loc), |
7755 | 43 | " " + attr.getAttrName()->getName().str() + " "); |
7756 | 43 | } |
7757 | | |
7758 | 47 | moveAttrFromListToList(attr, state.getCurrentAttributes(), |
7759 | 47 | chunk.getAttrs()); |
7760 | 47 | return true; |
7761 | 49 | }; |
7762 | | |
7763 | | // Move it to the outermost pointer, member pointer, or block |
7764 | | // pointer declarator. |
7765 | 69 | for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i2 ) { |
7766 | 52 | DeclaratorChunk &chunk = declarator.getTypeObject(i-1); |
7767 | 52 | switch (chunk.Kind) { |
7768 | 37 | case DeclaratorChunk::Pointer: |
7769 | 37 | case DeclaratorChunk::BlockPointer: |
7770 | 39 | case DeclaratorChunk::MemberPointer: |
7771 | 39 | return moveToChunk(chunk, false); |
7772 | | |
7773 | 0 | case DeclaratorChunk::Paren: |
7774 | 2 | case DeclaratorChunk::Array: |
7775 | 2 | continue; |
7776 | | |
7777 | 11 | case DeclaratorChunk::Function: |
7778 | | // Try to move past the return type to a function/block/member |
7779 | | // function pointer. |
7780 | 11 | if (DeclaratorChunk *dest = maybeMovePastReturnType( |
7781 | 11 | declarator, i, |
7782 | 11 | /*onlyBlockPointers=*/false)) { |
7783 | 10 | return moveToChunk(*dest, true); |
7784 | 10 | } |
7785 | | |
7786 | 1 | return false; |
7787 | | |
7788 | | // Don't walk through these. |
7789 | 0 | case DeclaratorChunk::Reference: |
7790 | 0 | case DeclaratorChunk::Pipe: |
7791 | 0 | return false; |
7792 | 52 | } |
7793 | 52 | } |
7794 | | |
7795 | 17 | return false; |
7796 | 67 | } |
7797 | | |
7798 | 3.20k | static Attr *getCCTypeAttr(ASTContext &Ctx, ParsedAttr &Attr) { |
7799 | 3.20k | assert(!Attr.isInvalid()); |
7800 | 3.20k | switch (Attr.getKind()) { |
7801 | 0 | default: |
7802 | 0 | llvm_unreachable("not a calling convention attribute"); |
7803 | 474 | case ParsedAttr::AT_CDecl: |
7804 | 474 | return createSimpleAttr<CDeclAttr>(Ctx, Attr); |
7805 | 233 | case ParsedAttr::AT_FastCall: |
7806 | 233 | return createSimpleAttr<FastCallAttr>(Ctx, Attr); |
7807 | 285 | case ParsedAttr::AT_StdCall: |
7808 | 285 | return createSimpleAttr<StdCallAttr>(Ctx, Attr); |
7809 | 79 | case ParsedAttr::AT_ThisCall: |
7810 | 79 | return createSimpleAttr<ThisCallAttr>(Ctx, Attr); |
7811 | 247 | case ParsedAttr::AT_RegCall: |
7812 | 247 | return createSimpleAttr<RegCallAttr>(Ctx, Attr); |
7813 | 23 | case ParsedAttr::AT_Pascal: |
7814 | 23 | return createSimpleAttr<PascalAttr>(Ctx, Attr); |
7815 | 1.22k | case ParsedAttr::AT_SwiftCall: |
7816 | 1.22k | return createSimpleAttr<SwiftCallAttr>(Ctx, Attr); |
7817 | 173 | case ParsedAttr::AT_SwiftAsyncCall: |
7818 | 173 | return createSimpleAttr<SwiftAsyncCallAttr>(Ctx, Attr); |
7819 | 214 | case ParsedAttr::AT_VectorCall: |
7820 | 214 | return createSimpleAttr<VectorCallAttr>(Ctx, Attr); |
7821 | 13 | case ParsedAttr::AT_AArch64VectorPcs: |
7822 | 13 | return createSimpleAttr<AArch64VectorPcsAttr>(Ctx, Attr); |
7823 | 12 | case ParsedAttr::AT_AArch64SVEPcs: |
7824 | 12 | return createSimpleAttr<AArch64SVEPcsAttr>(Ctx, Attr); |
7825 | 0 | case ParsedAttr::AT_ArmStreaming: |
7826 | 0 | return createSimpleAttr<ArmStreamingAttr>(Ctx, Attr); |
7827 | 12 | case ParsedAttr::AT_AMDGPUKernelCall: |
7828 | 12 | return createSimpleAttr<AMDGPUKernelCallAttr>(Ctx, Attr); |
7829 | 33 | case ParsedAttr::AT_Pcs: { |
7830 | | // The attribute may have had a fixit applied where we treated an |
7831 | | // identifier as a string literal. The contents of the string are valid, |
7832 | | // but the form may not be. |
7833 | 33 | StringRef Str; |
7834 | 33 | if (Attr.isArgExpr(0)) |
7835 | 33 | Str = cast<StringLiteral>(Attr.getArgAsExpr(0))->getString(); |
7836 | 0 | else |
7837 | 0 | Str = Attr.getArgAsIdent(0)->Ident->getName(); |
7838 | 33 | PcsAttr::PCSType Type; |
7839 | 33 | if (!PcsAttr::ConvertStrToPCSType(Str, Type)) |
7840 | 0 | llvm_unreachable("already validated the attribute"); |
7841 | 33 | return ::new (Ctx) PcsAttr(Ctx, Attr, Type); |
7842 | 0 | } |
7843 | 8 | case ParsedAttr::AT_IntelOclBicc: |
7844 | 8 | return createSimpleAttr<IntelOclBiccAttr>(Ctx, Attr); |
7845 | 50 | case ParsedAttr::AT_MSABI: |
7846 | 50 | return createSimpleAttr<MSABIAttr>(Ctx, Attr); |
7847 | 37 | case ParsedAttr::AT_SysVABI: |
7848 | 37 | return createSimpleAttr<SysVABIAttr>(Ctx, Attr); |
7849 | 36 | case ParsedAttr::AT_PreserveMost: |
7850 | 36 | return createSimpleAttr<PreserveMostAttr>(Ctx, Attr); |
7851 | 27 | case ParsedAttr::AT_PreserveAll: |
7852 | 27 | return createSimpleAttr<PreserveAllAttr>(Ctx, Attr); |
7853 | 27 | case ParsedAttr::AT_M68kRTD: |
7854 | 27 | return createSimpleAttr<M68kRTDAttr>(Ctx, Attr); |
7855 | 3.20k | } |
7856 | 0 | llvm_unreachable("unexpected attribute kind!"); |
7857 | 0 | } |
7858 | | |
7859 | | static bool checkMutualExclusion(TypeProcessingState &state, |
7860 | | const FunctionProtoType::ExtProtoInfo &EPI, |
7861 | | ParsedAttr &Attr, |
7862 | 1.23M | AttributeCommonInfo::Kind OtherKind) { |
7863 | 1.23M | auto OtherAttr = std::find_if( |
7864 | 1.23M | state.getCurrentAttributes().begin(), state.getCurrentAttributes().end(), |
7865 | 1.23M | [OtherKind](const ParsedAttr &A) { return A.getKind() == OtherKind; }); |
7866 | 1.23M | if (OtherAttr == state.getCurrentAttributes().end() || OtherAttr->isInvalid()16 ) |
7867 | 1.23M | return false; |
7868 | | |
7869 | 8 | Sema &S = state.getSema(); |
7870 | 8 | S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) |
7871 | 8 | << *OtherAttr << Attr |
7872 | 8 | << (OtherAttr->isRegularKeywordAttribute() || |
7873 | 8 | Attr.isRegularKeywordAttribute()0 ); |
7874 | 8 | S.Diag(OtherAttr->getLoc(), diag::note_conflicting_attribute); |
7875 | 8 | Attr.setInvalid(); |
7876 | 8 | return true; |
7877 | 1.23M | } |
7878 | | |
7879 | | /// Process an individual function attribute. Returns true to |
7880 | | /// indicate that the attribute was handled, false if it wasn't. |
7881 | | static bool handleFunctionTypeAttr(TypeProcessingState &state, ParsedAttr &attr, |
7882 | | QualType &type, |
7883 | 1.31M | Sema::CUDAFunctionTarget CFT) { |
7884 | 1.31M | Sema &S = state.getSema(); |
7885 | | |
7886 | 1.31M | FunctionTypeUnwrapper unwrapped(S, type); |
7887 | | |
7888 | 1.31M | if (attr.getKind() == ParsedAttr::AT_NoReturn) { |
7889 | 6.94k | if (S.CheckAttrNoArgs(attr)) |
7890 | 3 | return true; |
7891 | | |
7892 | | // Delay if this is not a function type. |
7893 | 6.94k | if (!unwrapped.isFunctionType()) |
7894 | 2 | return false; |
7895 | | |
7896 | | // Otherwise we can process right away. |
7897 | 6.94k | FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); |
7898 | 6.94k | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
7899 | 6.94k | return true; |
7900 | 6.94k | } |
7901 | | |
7902 | 1.30M | if (attr.getKind() == ParsedAttr::AT_CmseNSCall) { |
7903 | | // Delay if this is not a function type. |
7904 | 85 | if (!unwrapped.isFunctionType()) |
7905 | 1 | return false; |
7906 | | |
7907 | | // Ignore if we don't have CMSE enabled. |
7908 | 84 | if (!S.getLangOpts().Cmse) { |
7909 | 7 | S.Diag(attr.getLoc(), diag::warn_attribute_ignored) << attr; |
7910 | 7 | attr.setInvalid(); |
7911 | 7 | return true; |
7912 | 7 | } |
7913 | | |
7914 | | // Otherwise we can process right away. |
7915 | 77 | FunctionType::ExtInfo EI = |
7916 | 77 | unwrapped.get()->getExtInfo().withCmseNSCall(true); |
7917 | 77 | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
7918 | 77 | return true; |
7919 | 84 | } |
7920 | | |
7921 | | // ns_returns_retained is not always a type attribute, but if we got |
7922 | | // here, we're treating it as one right now. |
7923 | 1.30M | if (attr.getKind() == ParsedAttr::AT_NSReturnsRetained) { |
7924 | 13.5k | if (attr.getNumArgs()) return true0 ; |
7925 | | |
7926 | | // Delay if this is not a function type. |
7927 | 13.5k | if (!unwrapped.isFunctionType()) |
7928 | 5 | return false; |
7929 | | |
7930 | | // Check whether the return type is reasonable. |
7931 | 13.5k | if (S.checkNSReturnsRetainedReturnType(attr.getLoc(), |
7932 | 13.5k | unwrapped.get()->getReturnType())) |
7933 | 4 | return true; |
7934 | | |
7935 | | // Only actually change the underlying type in ARC builds. |
7936 | 13.5k | QualType origType = type; |
7937 | 13.5k | if (state.getSema().getLangOpts().ObjCAutoRefCount) { |
7938 | 404 | FunctionType::ExtInfo EI |
7939 | 404 | = unwrapped.get()->getExtInfo().withProducesResult(true); |
7940 | 404 | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
7941 | 404 | } |
7942 | 13.5k | type = state.getAttributedType( |
7943 | 13.5k | createSimpleAttr<NSReturnsRetainedAttr>(S.Context, attr), |
7944 | 13.5k | origType, type); |
7945 | 13.5k | return true; |
7946 | 13.5k | } |
7947 | | |
7948 | 1.29M | if (attr.getKind() == ParsedAttr::AT_AnyX86NoCallerSavedRegisters) { |
7949 | 35 | if (S.CheckAttrTarget(attr) || S.CheckAttrNoArgs(attr)26 ) |
7950 | 10 | return true; |
7951 | | |
7952 | | // Delay if this is not a function type. |
7953 | 25 | if (!unwrapped.isFunctionType()) |
7954 | 3 | return false; |
7955 | | |
7956 | 22 | FunctionType::ExtInfo EI = |
7957 | 22 | unwrapped.get()->getExtInfo().withNoCallerSavedRegs(true); |
7958 | 22 | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
7959 | 22 | return true; |
7960 | 25 | } |
7961 | | |
7962 | 1.28M | if (attr.getKind() == ParsedAttr::AT_AnyX86NoCfCheck) { |
7963 | 14 | if (!S.getLangOpts().CFProtectionBranch) { |
7964 | 1 | S.Diag(attr.getLoc(), diag::warn_nocf_check_attribute_ignored); |
7965 | 1 | attr.setInvalid(); |
7966 | 1 | return true; |
7967 | 1 | } |
7968 | | |
7969 | 13 | if (S.CheckAttrTarget(attr) || S.CheckAttrNoArgs(attr)11 ) |
7970 | 4 | return true; |
7971 | | |
7972 | | // If this is not a function type, warning will be asserted by subject |
7973 | | // check. |
7974 | 9 | if (!unwrapped.isFunctionType()) |
7975 | 3 | return true; |
7976 | | |
7977 | 6 | FunctionType::ExtInfo EI = |
7978 | 6 | unwrapped.get()->getExtInfo().withNoCfCheck(true); |
7979 | 6 | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
7980 | 6 | return true; |
7981 | 9 | } |
7982 | | |
7983 | 1.28M | if (attr.getKind() == ParsedAttr::AT_Regparm) { |
7984 | 79 | unsigned value; |
7985 | 79 | if (S.CheckRegparmAttr(attr, value)) |
7986 | 6 | return true; |
7987 | | |
7988 | | // Delay if this is not a function type. |
7989 | 73 | if (!unwrapped.isFunctionType()) |
7990 | 1 | return false; |
7991 | | |
7992 | | // Diagnose regparm with fastcall. |
7993 | 72 | const FunctionType *fn = unwrapped.get(); |
7994 | 72 | CallingConv CC = fn->getCallConv(); |
7995 | 72 | if (CC == CC_X86FastCall) { |
7996 | 2 | S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) |
7997 | 2 | << FunctionType::getNameForCallConv(CC) << "regparm" |
7998 | 2 | << attr.isRegularKeywordAttribute(); |
7999 | 2 | attr.setInvalid(); |
8000 | 2 | return true; |
8001 | 2 | } |
8002 | | |
8003 | 70 | FunctionType::ExtInfo EI = |
8004 | 70 | unwrapped.get()->getExtInfo().withRegParm(value); |
8005 | 70 | type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
8006 | 70 | return true; |
8007 | 72 | } |
8008 | | |
8009 | 1.28M | if (attr.getKind() == ParsedAttr::AT_ArmStreaming || |
8010 | 1.28M | attr.getKind() == ParsedAttr::AT_ArmStreamingCompatible1.28M || |
8011 | 1.28M | attr.getKind() == ParsedAttr::AT_ArmSharedZA50.4k || |
8012 | 1.28M | attr.getKind() == ParsedAttr::AT_ArmPreservesZA50.1k ){ |
8013 | 1.23M | if (S.CheckAttrTarget(attr) || S.CheckAttrNoArgs(attr)) |
8014 | 0 | return true; |
8015 | | |
8016 | 1.23M | if (!unwrapped.isFunctionType()) |
8017 | 97 | return false; |
8018 | | |
8019 | 1.23M | const auto *FnTy = unwrapped.get()->getAs<FunctionProtoType>(); |
8020 | 1.23M | if (!FnTy) { |
8021 | | // SME ACLE attributes are not supported on K&R-style unprototyped C |
8022 | | // functions. |
8023 | 1 | S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) << |
8024 | 1 | attr << attr.isRegularKeywordAttribute() << ExpectedFunctionWithProtoType; |
8025 | 1 | attr.setInvalid(); |
8026 | 1 | return false; |
8027 | 1 | } |
8028 | | |
8029 | 1.23M | FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); |
8030 | 1.23M | switch (attr.getKind()) { |
8031 | 909 | case ParsedAttr::AT_ArmStreaming: |
8032 | 909 | if (checkMutualExclusion(state, EPI, attr, |
8033 | 909 | ParsedAttr::AT_ArmStreamingCompatible)) |
8034 | 6 | return true; |
8035 | 903 | EPI.setArmSMEAttribute(FunctionType::SME_PStateSMEnabledMask); |
8036 | 903 | break; |
8037 | 1.23M | case ParsedAttr::AT_ArmStreamingCompatible: |
8038 | 1.23M | if (checkMutualExclusion(state, EPI, attr, ParsedAttr::AT_ArmStreaming)) |
8039 | 2 | return true; |
8040 | 1.23M | EPI.setArmSMEAttribute(FunctionType::SME_PStateSMCompatibleMask); |
8041 | 1.23M | break; |
8042 | 341 | case ParsedAttr::AT_ArmSharedZA: |
8043 | 341 | EPI.setArmSMEAttribute(FunctionType::SME_PStateZASharedMask); |
8044 | 341 | break; |
8045 | 40 | case ParsedAttr::AT_ArmPreservesZA: |
8046 | 40 | EPI.setArmSMEAttribute(FunctionType::SME_PStateZAPreservedMask); |
8047 | 40 | break; |
8048 | 0 | default: |
8049 | 0 | llvm_unreachable("Unsupported attribute"); |
8050 | 1.23M | } |
8051 | | |
8052 | 1.23M | QualType newtype = S.Context.getFunctionType(FnTy->getReturnType(), |
8053 | 1.23M | FnTy->getParamTypes(), EPI); |
8054 | 1.23M | type = unwrapped.wrap(S, newtype->getAs<FunctionType>()); |
8055 | 1.23M | return true; |
8056 | 1.23M | } |
8057 | | |
8058 | 50.0k | if (attr.getKind() == ParsedAttr::AT_NoThrow) { |
8059 | | // Delay if this is not a function type. |
8060 | 46.8k | if (!unwrapped.isFunctionType()) |
8061 | 0 | return false; |
8062 | | |
8063 | 46.8k | if (S.CheckAttrNoArgs(attr)) { |
8064 | 0 | attr.setInvalid(); |
8065 | 0 | return true; |
8066 | 0 | } |
8067 | | |
8068 | | // Otherwise we can process right away. |
8069 | 46.8k | auto *Proto = unwrapped.get()->castAs<FunctionProtoType>(); |
8070 | | |
8071 | | // MSVC ignores nothrow if it is in conflict with an explicit exception |
8072 | | // specification. |
8073 | 46.8k | if (Proto->hasExceptionSpec()) { |
8074 | 17.9k | switch (Proto->getExceptionSpecType()) { |
8075 | 0 | case EST_None: |
8076 | 0 | llvm_unreachable("This doesn't have an exception spec!"); |
8077 | |
|
8078 | 2 | case EST_DynamicNone: |
8079 | 6 | case EST_BasicNoexcept: |
8080 | 14 | case EST_NoexceptTrue: |
8081 | 17.8k | case EST_NoThrow: |
8082 | | // Exception spec doesn't conflict with nothrow, so don't warn. |
8083 | 17.8k | [[fallthrough]]; |
8084 | 17.8k | case EST_Unparsed: |
8085 | 17.8k | case EST_Uninstantiated: |
8086 | 17.9k | case EST_DependentNoexcept: |
8087 | 17.9k | case EST_Unevaluated: |
8088 | | // We don't have enough information to properly determine if there is a |
8089 | | // conflict, so suppress the warning. |
8090 | 17.9k | break; |
8091 | 1 | case EST_Dynamic: |
8092 | 1 | case EST_MSAny: |
8093 | 7 | case EST_NoexceptFalse: |
8094 | 7 | S.Diag(attr.getLoc(), diag::warn_nothrow_attribute_ignored); |
8095 | 7 | break; |
8096 | 17.9k | } |
8097 | 17.9k | return true; |
8098 | 17.9k | } |
8099 | | |
8100 | 28.9k | type = unwrapped.wrap( |
8101 | 28.9k | S, S.Context |
8102 | 28.9k | .getFunctionTypeWithExceptionSpec( |
8103 | 28.9k | QualType{Proto, 0}, |
8104 | 28.9k | FunctionProtoType::ExceptionSpecInfo{EST_NoThrow}) |
8105 | 28.9k | ->getAs<FunctionType>()); |
8106 | 28.9k | return true; |
8107 | 46.8k | } |
8108 | | |
8109 | | // Delay if the type didn't work out to a function. |
8110 | 3.25k | if (!unwrapped.isFunctionType()) return false51 ; |
8111 | | |
8112 | | // Otherwise, a calling convention. |
8113 | 3.20k | CallingConv CC; |
8114 | 3.20k | if (S.CheckCallingConvAttr(attr, CC, /*FunctionDecl=*/nullptr, CFT)) |
8115 | 0 | return true; |
8116 | | |
8117 | 3.20k | const FunctionType *fn = unwrapped.get(); |
8118 | 3.20k | CallingConv CCOld = fn->getCallConv(); |
8119 | 3.20k | Attr *CCAttr = getCCTypeAttr(S.Context, attr); |
8120 | | |
8121 | 3.20k | if (CCOld != CC) { |
8122 | | // Error out on when there's already an attribute on the type |
8123 | | // and the CCs don't match. |
8124 | 187 | if (S.getCallingConvAttributedType(type)) { |
8125 | 26 | S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) |
8126 | 26 | << FunctionType::getNameForCallConv(CC) |
8127 | 26 | << FunctionType::getNameForCallConv(CCOld) |
8128 | 26 | << attr.isRegularKeywordAttribute(); |
8129 | 26 | attr.setInvalid(); |
8130 | 26 | return true; |
8131 | 26 | } |
8132 | 187 | } |
8133 | | |
8134 | | // Diagnose use of variadic functions with calling conventions that |
8135 | | // don't support them (e.g. because they're callee-cleanup). |
8136 | | // We delay warning about this on unprototyped function declarations |
8137 | | // until after redeclaration checking, just in case we pick up a |
8138 | | // prototype that way. And apparently we also "delay" warning about |
8139 | | // unprototyped function types in general, despite not necessarily having |
8140 | | // much ability to diagnose it later. |
8141 | 3.18k | if (!supportsVariadicCall(CC)) { |
8142 | 2.33k | const FunctionProtoType *FnP = dyn_cast<FunctionProtoType>(fn); |
8143 | 2.33k | if (FnP && FnP->isVariadic()2.29k ) { |
8144 | | // stdcall and fastcall are ignored with a warning for GCC and MS |
8145 | | // compatibility. |
8146 | 27 | if (CC == CC_X86StdCall || CC == CC_X86FastCall18 ) |
8147 | 14 | return S.Diag(attr.getLoc(), diag::warn_cconv_unsupported) |
8148 | 14 | << FunctionType::getNameForCallConv(CC) |
8149 | 14 | << (int)Sema::CallingConventionIgnoredReason::VariadicFunction; |
8150 | | |
8151 | 13 | attr.setInvalid(); |
8152 | 13 | return S.Diag(attr.getLoc(), diag::err_cconv_varargs) |
8153 | 13 | << FunctionType::getNameForCallConv(CC); |
8154 | 27 | } |
8155 | 2.33k | } |
8156 | | |
8157 | | // Also diagnose fastcall with regparm. |
8158 | 3.15k | if (CC == CC_X86FastCall && fn->getHasRegParm()160 ) { |
8159 | 0 | S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) |
8160 | 0 | << "regparm" << FunctionType::getNameForCallConv(CC_X86FastCall) |
8161 | 0 | << attr.isRegularKeywordAttribute(); |
8162 | 0 | attr.setInvalid(); |
8163 | 0 | return true; |
8164 | 0 | } |
8165 | | |
8166 | | // Modify the CC from the wrapped function type, wrap it all back, and then |
8167 | | // wrap the whole thing in an AttributedType as written. The modified type |
8168 | | // might have a different CC if we ignored the attribute. |
8169 | 3.15k | QualType Equivalent; |
8170 | 3.15k | if (CCOld == CC) { |
8171 | 3.01k | Equivalent = type; |
8172 | 3.01k | } else { |
8173 | 134 | auto EI = unwrapped.get()->getExtInfo().withCallingConv(CC); |
8174 | 134 | Equivalent = |
8175 | 134 | unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); |
8176 | 134 | } |
8177 | 3.15k | type = state.getAttributedType(CCAttr, type, Equivalent); |
8178 | 3.15k | return true; |
8179 | 3.15k | } |
8180 | | |
8181 | 12.8k | bool Sema::hasExplicitCallingConv(QualType T) { |
8182 | 12.8k | const AttributedType *AT; |
8183 | | |
8184 | | // Stop if we'd be stripping off a typedef sugar node to reach the |
8185 | | // AttributedType. |
8186 | 12.8k | while ((AT = T->getAs<AttributedType>()) && |
8187 | 12.8k | AT->getAs<TypedefType>() == T->getAs<TypedefType>()50 ) { |
8188 | 42 | if (AT->isCallingConv()) |
8189 | 42 | return true; |
8190 | 0 | T = AT->getModifiedType(); |
8191 | 0 | } |
8192 | 12.8k | return false; |
8193 | 12.8k | } |
8194 | | |
8195 | | void Sema::adjustMemberFunctionCC(QualType &T, bool HasThisPointer, |
8196 | 1.69M | bool IsCtorOrDtor, SourceLocation Loc) { |
8197 | 1.69M | FunctionTypeUnwrapper Unwrapped(*this, T); |
8198 | 1.69M | const FunctionType *FT = Unwrapped.get(); |
8199 | 1.69M | bool IsVariadic = (isa<FunctionProtoType>(FT) && |
8200 | 1.69M | cast<FunctionProtoType>(FT)->isVariadic()); |
8201 | 1.69M | CallingConv CurCC = FT->getCallConv(); |
8202 | 1.69M | CallingConv ToCC = |
8203 | 1.69M | Context.getDefaultCallingConvention(IsVariadic, HasThisPointer); |
8204 | | |
8205 | 1.69M | if (CurCC == ToCC) |
8206 | 1.69M | return; |
8207 | | |
8208 | | // MS compiler ignores explicit calling convention attributes on structors. We |
8209 | | // should do the same. |
8210 | 218 | if (Context.getTargetInfo().getCXXABI().isMicrosoft() && IsCtorOrDtor124 ) { |
8211 | | // Issue a warning on ignored calling convention -- except of __stdcall. |
8212 | | // Again, this is what MS compiler does. |
8213 | 4 | if (CurCC != CC_X86StdCall) |
8214 | 2 | Diag(Loc, diag::warn_cconv_unsupported) |
8215 | 2 | << FunctionType::getNameForCallConv(CurCC) |
8216 | 2 | << (int)Sema::CallingConventionIgnoredReason::ConstructorDestructor; |
8217 | | // Default adjustment. |
8218 | 214 | } else { |
8219 | | // Only adjust types with the default convention. For example, on Windows |
8220 | | // we should adjust a __cdecl type to __thiscall for instance methods, and a |
8221 | | // __thiscall type to __cdecl for static methods. |
8222 | 214 | CallingConv DefaultCC = |
8223 | 214 | Context.getDefaultCallingConvention(IsVariadic, !HasThisPointer); |
8224 | | |
8225 | 214 | if (CurCC != DefaultCC) |
8226 | 146 | return; |
8227 | | |
8228 | 68 | if (hasExplicitCallingConv(T)) |
8229 | 35 | return; |
8230 | 68 | } |
8231 | | |
8232 | 37 | FT = Context.adjustFunctionType(FT, FT->getExtInfo().withCallingConv(ToCC)); |
8233 | 37 | QualType Wrapped = Unwrapped.wrap(*this, FT); |
8234 | 37 | T = Context.getAdjustedType(T, Wrapped); |
8235 | 37 | } |
8236 | | |
8237 | | /// HandleVectorSizeAttribute - this attribute is only applicable to integral |
8238 | | /// and float scalars, although arrays, pointers, and function return values are |
8239 | | /// allowed in conjunction with this construct. Aggregates with this attribute |
8240 | | /// are invalid, even if they are of the same size as a corresponding scalar. |
8241 | | /// The raw attribute should contain precisely 1 argument, the vector size for |
8242 | | /// the variable, measured in bytes. If curType and rawAttr are well formed, |
8243 | | /// this routine will return a new vector type. |
8244 | | static void HandleVectorSizeAttr(QualType &CurType, const ParsedAttr &Attr, |
8245 | 36.0k | Sema &S) { |
8246 | | // Check the attribute arguments. |
8247 | 36.0k | if (Attr.getNumArgs() != 1) { |
8248 | 0 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Attr |
8249 | 0 | << 1; |
8250 | 0 | Attr.setInvalid(); |
8251 | 0 | return; |
8252 | 0 | } |
8253 | | |
8254 | 36.0k | Expr *SizeExpr = Attr.getArgAsExpr(0); |
8255 | 36.0k | QualType T = S.BuildVectorType(CurType, SizeExpr, Attr.getLoc()); |
8256 | 36.0k | if (!T.isNull()) |
8257 | 35.9k | CurType = T; |
8258 | 60 | else |
8259 | 60 | Attr.setInvalid(); |
8260 | 36.0k | } |
8261 | | |
8262 | | /// Process the OpenCL-like ext_vector_type attribute when it occurs on |
8263 | | /// a type. |
8264 | | static void HandleExtVectorTypeAttr(QualType &CurType, const ParsedAttr &Attr, |
8265 | 5.47k | Sema &S) { |
8266 | | // check the attribute arguments. |
8267 | 5.47k | if (Attr.getNumArgs() != 1) { |
8268 | 0 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Attr |
8269 | 0 | << 1; |
8270 | 0 | return; |
8271 | 0 | } |
8272 | | |
8273 | 5.47k | Expr *SizeExpr = Attr.getArgAsExpr(0); |
8274 | 5.47k | QualType T = S.BuildExtVectorType(CurType, SizeExpr, Attr.getLoc()); |
8275 | 5.47k | if (!T.isNull()) |
8276 | 5.44k | CurType = T; |
8277 | 5.47k | } |
8278 | | |
8279 | 7.65k | static bool isPermittedNeonBaseType(QualType &Ty, VectorKind VecKind, Sema &S) { |
8280 | 7.65k | const BuiltinType *BTy = Ty->getAs<BuiltinType>(); |
8281 | 7.65k | if (!BTy) |
8282 | 7 | return false; |
8283 | | |
8284 | 7.64k | llvm::Triple Triple = S.Context.getTargetInfo().getTriple(); |
8285 | | |
8286 | | // Signed poly is mathematically wrong, but has been baked into some ABIs by |
8287 | | // now. |
8288 | 7.64k | bool IsPolyUnsigned = Triple.getArch() == llvm::Triple::aarch64 || |
8289 | 7.64k | Triple.getArch() == llvm::Triple::aarch64_323.73k || |
8290 | 7.64k | Triple.getArch() == llvm::Triple::aarch64_be3.71k ; |
8291 | 7.64k | if (VecKind == VectorKind::NeonPoly) { |
8292 | 1.24k | if (IsPolyUnsigned) { |
8293 | | // AArch64 polynomial vectors are unsigned. |
8294 | 871 | return BTy->getKind() == BuiltinType::UChar || |
8295 | 871 | BTy->getKind() == BuiltinType::UShort581 || |
8296 | 871 | BTy->getKind() == BuiltinType::ULong293 || |
8297 | 871 | BTy->getKind() == BuiltinType::ULongLong47 ; |
8298 | 871 | } else { |
8299 | | // AArch32 polynomial vectors are signed. |
8300 | 373 | return BTy->getKind() == BuiltinType::SChar || |
8301 | 373 | BTy->getKind() == BuiltinType::Short246 || |
8302 | 373 | BTy->getKind() == BuiltinType::LongLong123 ; |
8303 | 373 | } |
8304 | 1.24k | } |
8305 | | |
8306 | | // Non-polynomial vector types: the usual suspects are allowed, as well as |
8307 | | // float64_t on AArch64. |
8308 | 6.40k | if ((Triple.isArch64Bit() || Triple.getArch() == llvm::Triple::aarch64_322.96k ) && |
8309 | 6.40k | BTy->getKind() == BuiltinType::Double3.45k ) |
8310 | 287 | return true; |
8311 | | |
8312 | 6.11k | return BTy->getKind() == BuiltinType::SChar || |
8313 | 6.11k | BTy->getKind() == BuiltinType::UChar5.55k || |
8314 | 6.11k | BTy->getKind() == BuiltinType::Short4.99k || |
8315 | 6.11k | BTy->getKind() == BuiltinType::UShort4.42k || |
8316 | 6.11k | BTy->getKind() == BuiltinType::Int3.86k || |
8317 | 6.11k | BTy->getKind() == BuiltinType::UInt3.25k || |
8318 | 6.11k | BTy->getKind() == BuiltinType::Long2.69k || |
8319 | 6.11k | BTy->getKind() == BuiltinType::ULong2.44k || |
8320 | 6.11k | BTy->getKind() == BuiltinType::LongLong2.19k || |
8321 | 6.11k | BTy->getKind() == BuiltinType::ULongLong1.86k || |
8322 | 6.11k | BTy->getKind() == BuiltinType::Float1.53k || |
8323 | 6.11k | BTy->getKind() == BuiltinType::Half962 || |
8324 | 6.11k | BTy->getKind() == BuiltinType::BFloat16406 ; |
8325 | 6.40k | } |
8326 | | |
8327 | | static bool verifyValidIntegerConstantExpr(Sema &S, const ParsedAttr &Attr, |
8328 | 8.99k | llvm::APSInt &Result) { |
8329 | 8.99k | const auto *AttrExpr = Attr.getArgAsExpr(0); |
8330 | 8.99k | if (!AttrExpr->isTypeDependent()) { |
8331 | 8.99k | if (std::optional<llvm::APSInt> Res = |
8332 | 8.99k | AttrExpr->getIntegerConstantExpr(S.Context)) { |
8333 | 8.97k | Result = *Res; |
8334 | 8.97k | return true; |
8335 | 8.97k | } |
8336 | 8.99k | } |
8337 | 27 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) |
8338 | 27 | << Attr << AANT_ArgumentIntegerConstant << AttrExpr->getSourceRange(); |
8339 | 27 | Attr.setInvalid(); |
8340 | 27 | return false; |
8341 | 8.99k | } |
8342 | | |
8343 | | /// HandleNeonVectorTypeAttr - The "neon_vector_type" and |
8344 | | /// "neon_polyvector_type" attributes are used to create vector types that |
8345 | | /// are mangled according to ARM's ABI. Otherwise, these types are identical |
8346 | | /// to those created with the "vector_size" attribute. Unlike "vector_size" |
8347 | | /// the argument to these Neon attributes is the number of vector elements, |
8348 | | /// not the vector size in bytes. The vector width and element type must |
8349 | | /// match one of the standard Neon vector types. |
8350 | | static void HandleNeonVectorTypeAttr(QualType &CurType, const ParsedAttr &Attr, |
8351 | 7.67k | Sema &S, VectorKind VecKind) { |
8352 | 7.67k | bool IsTargetCUDAAndHostARM = false; |
8353 | 7.67k | if (S.getLangOpts().CUDAIsDevice) { |
8354 | 2 | const TargetInfo *AuxTI = S.getASTContext().getAuxTargetInfo(); |
8355 | 2 | IsTargetCUDAAndHostARM = |
8356 | 2 | AuxTI && (AuxTI->getTriple().isAArch64() || AuxTI->getTriple().isARM()0 ); |
8357 | 2 | } |
8358 | | |
8359 | | // Target must have NEON (or MVE, whose vectors are similar enough |
8360 | | // not to need a separate attribute) |
8361 | 7.67k | if (!(S.Context.getTargetInfo().hasFeature("neon") || |
8362 | 7.67k | S.Context.getTargetInfo().hasFeature("mve")1.59k || |
8363 | 7.67k | IsTargetCUDAAndHostARM8 )) { |
8364 | 6 | S.Diag(Attr.getLoc(), diag::err_attribute_unsupported) |
8365 | 6 | << Attr << "'neon' or 'mve'"; |
8366 | 6 | Attr.setInvalid(); |
8367 | 6 | return; |
8368 | 6 | } |
8369 | | // Check the attribute arguments. |
8370 | 7.66k | if (Attr.getNumArgs() != 1) { |
8371 | 7 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) |
8372 | 7 | << Attr << 1; |
8373 | 7 | Attr.setInvalid(); |
8374 | 7 | return; |
8375 | 7 | } |
8376 | | // The number of elements must be an ICE. |
8377 | 7.66k | llvm::APSInt numEltsInt(32); |
8378 | 7.66k | if (!verifyValidIntegerConstantExpr(S, Attr, numEltsInt)) |
8379 | 7 | return; |
8380 | | |
8381 | | // Only certain element types are supported for Neon vectors. |
8382 | 7.65k | if (!isPermittedNeonBaseType(CurType, VecKind, S) && |
8383 | 7.65k | !IsTargetCUDAAndHostARM22 ) { |
8384 | 21 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; |
8385 | 21 | Attr.setInvalid(); |
8386 | 21 | return; |
8387 | 21 | } |
8388 | | |
8389 | | // The total size of the vector must be 64 or 128 bits. |
8390 | 7.63k | unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); |
8391 | 7.63k | unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); |
8392 | 7.63k | unsigned vecSize = typeSize * numElts; |
8393 | 7.63k | if (vecSize != 64 && vecSize != 1284.63k ) { |
8394 | 14 | S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; |
8395 | 14 | Attr.setInvalid(); |
8396 | 14 | return; |
8397 | 14 | } |
8398 | | |
8399 | 7.62k | CurType = S.Context.getVectorType(CurType, numElts, VecKind); |
8400 | 7.62k | } |
8401 | | |
8402 | | /// HandleArmSveVectorBitsTypeAttr - The "arm_sve_vector_bits" attribute is |
8403 | | /// used to create fixed-length versions of sizeless SVE types defined by |
8404 | | /// the ACLE, such as svint32_t and svbool_t. |
8405 | | static void HandleArmSveVectorBitsTypeAttr(QualType &CurType, ParsedAttr &Attr, |
8406 | 511 | Sema &S) { |
8407 | | // Target must have SVE. |
8408 | 511 | if (!S.Context.getTargetInfo().hasFeature("sve")) { |
8409 | 1 | S.Diag(Attr.getLoc(), diag::err_attribute_unsupported) << Attr << "'sve'"; |
8410 | 1 | Attr.setInvalid(); |
8411 | 1 | return; |
8412 | 1 | } |
8413 | | |
8414 | | // Attribute is unsupported if '-msve-vector-bits=<bits>' isn't specified, or |
8415 | | // if <bits>+ syntax is used. |
8416 | 510 | if (!S.getLangOpts().VScaleMin || |
8417 | 510 | S.getLangOpts().VScaleMin != S.getLangOpts().VScaleMax506 ) { |
8418 | 6 | S.Diag(Attr.getLoc(), diag::err_attribute_arm_feature_sve_bits_unsupported) |
8419 | 6 | << Attr; |
8420 | 6 | Attr.setInvalid(); |
8421 | 6 | return; |
8422 | 6 | } |
8423 | | |
8424 | | // Check the attribute arguments. |
8425 | 504 | if (Attr.getNumArgs() != 1) { |
8426 | 10 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) |
8427 | 10 | << Attr << 1; |
8428 | 10 | Attr.setInvalid(); |
8429 | 10 | return; |
8430 | 10 | } |
8431 | | |
8432 | | // The vector size must be an integer constant expression. |
8433 | 494 | llvm::APSInt SveVectorSizeInBits(32); |
8434 | 494 | if (!verifyValidIntegerConstantExpr(S, Attr, SveVectorSizeInBits)) |
8435 | 10 | return; |
8436 | | |
8437 | 484 | unsigned VecSize = static_cast<unsigned>(SveVectorSizeInBits.getZExtValue()); |
8438 | | |
8439 | | // The attribute vector size must match -msve-vector-bits. |
8440 | 484 | if (VecSize != S.getLangOpts().VScaleMin * 128) { |
8441 | 2 | S.Diag(Attr.getLoc(), diag::err_attribute_bad_sve_vector_size) |
8442 | 2 | << VecSize << S.getLangOpts().VScaleMin * 128; |
8443 | 2 | Attr.setInvalid(); |
8444 | 2 | return; |
8445 | 2 | } |
8446 | | |
8447 | | // Attribute can only be attached to a single SVE vector or predicate type. |
8448 | 482 | if (!CurType->isSveVLSBuiltinType()) { |
8449 | 25 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_sve_type) |
8450 | 25 | << Attr << CurType; |
8451 | 25 | Attr.setInvalid(); |
8452 | 25 | return; |
8453 | 25 | } |
8454 | | |
8455 | 457 | const auto *BT = CurType->castAs<BuiltinType>(); |
8456 | | |
8457 | 457 | QualType EltType = CurType->getSveEltType(S.Context); |
8458 | 457 | unsigned TypeSize = S.Context.getTypeSize(EltType); |
8459 | 457 | VectorKind VecKind = VectorKind::SveFixedLengthData; |
8460 | 457 | if (BT->getKind() == BuiltinType::SveBool) { |
8461 | | // Predicates are represented as i8. |
8462 | 43 | VecSize /= S.Context.getCharWidth() * S.Context.getCharWidth(); |
8463 | 43 | VecKind = VectorKind::SveFixedLengthPredicate; |
8464 | 43 | } else |
8465 | 414 | VecSize /= TypeSize; |
8466 | 457 | CurType = S.Context.getVectorType(EltType, VecSize, VecKind); |
8467 | 457 | } |
8468 | | |
8469 | | static void HandleArmMveStrictPolymorphismAttr(TypeProcessingState &State, |
8470 | | QualType &CurType, |
8471 | 1.58k | ParsedAttr &Attr) { |
8472 | 1.58k | const VectorType *VT = dyn_cast<VectorType>(CurType); |
8473 | 1.58k | if (!VT || VT->getVectorKind() != VectorKind::Neon1.58k ) { |
8474 | 3 | State.getSema().Diag(Attr.getLoc(), |
8475 | 3 | diag::err_attribute_arm_mve_polymorphism); |
8476 | 3 | Attr.setInvalid(); |
8477 | 3 | return; |
8478 | 3 | } |
8479 | | |
8480 | 1.58k | CurType = |
8481 | 1.58k | State.getAttributedType(createSimpleAttr<ArmMveStrictPolymorphismAttr>( |
8482 | 1.58k | State.getSema().Context, Attr), |
8483 | 1.58k | CurType, CurType); |
8484 | 1.58k | } |
8485 | | |
8486 | | /// HandleRISCVRVVVectorBitsTypeAttr - The "riscv_rvv_vector_bits" attribute is |
8487 | | /// used to create fixed-length versions of sizeless RVV types such as |
8488 | | /// vint8m1_t_t. |
8489 | | static void HandleRISCVRVVVectorBitsTypeAttr(QualType &CurType, |
8490 | 856 | ParsedAttr &Attr, Sema &S) { |
8491 | | // Target must have vector extension. |
8492 | 856 | if (!S.Context.getTargetInfo().hasFeature("zve32x")) { |
8493 | 1 | S.Diag(Attr.getLoc(), diag::err_attribute_unsupported) |
8494 | 1 | << Attr << "'zve32x'"; |
8495 | 1 | Attr.setInvalid(); |
8496 | 1 | return; |
8497 | 1 | } |
8498 | | |
8499 | 855 | auto VScale = S.Context.getTargetInfo().getVScaleRange(S.getLangOpts()); |
8500 | 855 | if (!VScale || !VScale->first || VScale->first != VScale->second) { |
8501 | 4 | S.Diag(Attr.getLoc(), diag::err_attribute_riscv_rvv_bits_unsupported) |
8502 | 4 | << Attr; |
8503 | 4 | Attr.setInvalid(); |
8504 | 4 | return; |
8505 | 4 | } |
8506 | | |
8507 | | // Check the attribute arguments. |
8508 | 851 | if (Attr.getNumArgs() != 1) { |
8509 | 10 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) |
8510 | 10 | << Attr << 1; |
8511 | 10 | Attr.setInvalid(); |
8512 | 10 | return; |
8513 | 10 | } |
8514 | | |
8515 | | // The vector size must be an integer constant expression. |
8516 | 841 | llvm::APSInt RVVVectorSizeInBits(32); |
8517 | 841 | if (!verifyValidIntegerConstantExpr(S, Attr, RVVVectorSizeInBits)) |
8518 | 10 | return; |
8519 | | |
8520 | | // Attribute can only be attached to a single RVV vector type. |
8521 | 831 | if (!CurType->isRVVVLSBuiltinType()) { |
8522 | 20 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_rvv_type) |
8523 | 20 | << Attr << CurType; |
8524 | 20 | Attr.setInvalid(); |
8525 | 20 | return; |
8526 | 20 | } |
8527 | | |
8528 | 811 | unsigned VecSize = static_cast<unsigned>(RVVVectorSizeInBits.getZExtValue()); |
8529 | | |
8530 | 811 | ASTContext::BuiltinVectorTypeInfo Info = |
8531 | 811 | S.Context.getBuiltinVectorTypeInfo(CurType->castAs<BuiltinType>()); |
8532 | 811 | unsigned EltSize = S.Context.getTypeSize(Info.ElementType); |
8533 | 811 | unsigned MinElts = Info.EC.getKnownMinValue(); |
8534 | | |
8535 | | // The attribute vector size must match -mrvv-vector-bits. |
8536 | 811 | unsigned ExpectedSize = VScale->first * MinElts * EltSize; |
8537 | 811 | if (VecSize != ExpectedSize) { |
8538 | 2 | S.Diag(Attr.getLoc(), diag::err_attribute_bad_rvv_vector_size) |
8539 | 2 | << VecSize << ExpectedSize; |
8540 | 2 | Attr.setInvalid(); |
8541 | 2 | return; |
8542 | 2 | } |
8543 | | |
8544 | 809 | VectorKind VecKind = VectorKind::RVVFixedLengthData; |
8545 | 809 | VecSize /= EltSize; |
8546 | 809 | CurType = S.Context.getVectorType(Info.ElementType, VecSize, VecKind); |
8547 | 809 | } |
8548 | | |
8549 | | /// Handle OpenCL Access Qualifier Attribute. |
8550 | | static void HandleOpenCLAccessAttr(QualType &CurType, const ParsedAttr &Attr, |
8551 | 8.74k | Sema &S) { |
8552 | | // OpenCL v2.0 s6.6 - Access qualifier can be used only for image and pipe type. |
8553 | 8.74k | if (!(CurType->isImageType() || CurType->isPipeType()221 )) { |
8554 | 21 | S.Diag(Attr.getLoc(), diag::err_opencl_invalid_access_qualifier); |
8555 | 21 | Attr.setInvalid(); |
8556 | 21 | return; |
8557 | 21 | } |
8558 | | |
8559 | 8.72k | if (const TypedefType* TypedefTy = CurType->getAs<TypedefType>()) { |
8560 | 36 | QualType BaseTy = TypedefTy->desugar(); |
8561 | | |
8562 | 36 | std::string PrevAccessQual; |
8563 | 36 | if (BaseTy->isPipeType()) { |
8564 | 3 | if (TypedefTy->getDecl()->hasAttr<OpenCLAccessAttr>()) { |
8565 | 3 | OpenCLAccessAttr *Attr = |
8566 | 3 | TypedefTy->getDecl()->getAttr<OpenCLAccessAttr>(); |
8567 | 3 | PrevAccessQual = Attr->getSpelling(); |
8568 | 3 | } else { |
8569 | 0 | PrevAccessQual = "read_only"; |
8570 | 0 | } |
8571 | 33 | } else if (const BuiltinType* ImgType = BaseTy->getAs<BuiltinType>()) { |
8572 | | |
8573 | 33 | switch (ImgType->getKind()) { |
8574 | 0 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
8575 | 33 | case BuiltinType::Id: \ |
8576 | 33 | PrevAccessQual = #Access; \ |
8577 | 33 | break; |
8578 | 0 | #include "clang/Basic/OpenCLImageTypes.def" |
8579 | 0 | default: |
8580 | 0 | llvm_unreachable("Unable to find corresponding image type."); |
8581 | 33 | } |
8582 | 33 | } else { |
8583 | 0 | llvm_unreachable("unexpected type"); |
8584 | 0 | } |
8585 | 36 | StringRef AttrName = Attr.getAttrName()->getName(); |
8586 | 36 | if (PrevAccessQual == AttrName.ltrim("_")) { |
8587 | | // Duplicated qualifiers |
8588 | 24 | S.Diag(Attr.getLoc(), diag::warn_duplicate_declspec) |
8589 | 24 | << AttrName << Attr.getRange(); |
8590 | 24 | } else { |
8591 | | // Contradicting qualifiers |
8592 | 12 | S.Diag(Attr.getLoc(), diag::err_opencl_multiple_access_qualifiers); |
8593 | 12 | } |
8594 | | |
8595 | 36 | S.Diag(TypedefTy->getDecl()->getBeginLoc(), |
8596 | 36 | diag::note_opencl_typedef_access_qualifier) << PrevAccessQual; |
8597 | 8.69k | } else if (CurType->isPipeType()) { |
8598 | 197 | if (Attr.getSemanticSpelling() == OpenCLAccessAttr::Keyword_write_only) { |
8599 | 48 | QualType ElemType = CurType->castAs<PipeType>()->getElementType(); |
8600 | 48 | CurType = S.Context.getWritePipeType(ElemType); |
8601 | 48 | } |
8602 | 197 | } |
8603 | 8.72k | } |
8604 | | |
8605 | | /// HandleMatrixTypeAttr - "matrix_type" attribute, like ext_vector_type |
8606 | | static void HandleMatrixTypeAttr(QualType &CurType, const ParsedAttr &Attr, |
8607 | 214 | Sema &S) { |
8608 | 214 | if (!S.getLangOpts().MatrixTypes) { |
8609 | 1 | S.Diag(Attr.getLoc(), diag::err_builtin_matrix_disabled); |
8610 | 1 | return; |
8611 | 1 | } |
8612 | | |
8613 | 213 | if (Attr.getNumArgs() != 2) { |
8614 | 0 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) |
8615 | 0 | << Attr << 2; |
8616 | 0 | return; |
8617 | 0 | } |
8618 | | |
8619 | 213 | Expr *RowsExpr = Attr.getArgAsExpr(0); |
8620 | 213 | Expr *ColsExpr = Attr.getArgAsExpr(1); |
8621 | 213 | QualType T = S.BuildMatrixType(CurType, RowsExpr, ColsExpr, Attr.getLoc()); |
8622 | 213 | if (!T.isNull()) |
8623 | 200 | CurType = T; |
8624 | 213 | } |
8625 | | |
8626 | | static void HandleAnnotateTypeAttr(TypeProcessingState &State, |
8627 | 56 | QualType &CurType, const ParsedAttr &PA) { |
8628 | 56 | Sema &S = State.getSema(); |
8629 | | |
8630 | 56 | if (PA.getNumArgs() < 1) { |
8631 | 3 | S.Diag(PA.getLoc(), diag::err_attribute_too_few_arguments) << PA << 1; |
8632 | 3 | return; |
8633 | 3 | } |
8634 | | |
8635 | | // Make sure that there is a string literal as the annotation's first |
8636 | | // argument. |
8637 | 53 | StringRef Str; |
8638 | 53 | if (!S.checkStringLiteralArgumentAttr(PA, 0, Str)) |
8639 | 0 | return; |
8640 | | |
8641 | 53 | llvm::SmallVector<Expr *, 4> Args; |
8642 | 53 | Args.reserve(PA.getNumArgs() - 1); |
8643 | 62 | for (unsigned Idx = 1; Idx < PA.getNumArgs(); Idx++9 ) { |
8644 | 9 | assert(!PA.isArgIdent(Idx)); |
8645 | 9 | Args.push_back(PA.getArgAsExpr(Idx)); |
8646 | 9 | } |
8647 | 53 | if (!S.ConstantFoldAttrArgs(PA, Args)) |
8648 | 2 | return; |
8649 | 51 | auto *AnnotateTypeAttr = |
8650 | 51 | AnnotateTypeAttr::Create(S.Context, Str, Args.data(), Args.size(), PA); |
8651 | 51 | CurType = State.getAttributedType(AnnotateTypeAttr, CurType, CurType); |
8652 | 51 | } |
8653 | | |
8654 | | static void HandleLifetimeBoundAttr(TypeProcessingState &State, |
8655 | | QualType &CurType, |
8656 | 8 | ParsedAttr &Attr) { |
8657 | 8 | if (State.getDeclarator().isDeclarationOfFunction()) { |
8658 | 8 | CurType = State.getAttributedType( |
8659 | 8 | createSimpleAttr<LifetimeBoundAttr>(State.getSema().Context, Attr), |
8660 | 8 | CurType, CurType); |
8661 | 8 | } |
8662 | 8 | } |
8663 | | |
8664 | | static void processTypeAttrs(TypeProcessingState &state, QualType &type, |
8665 | | TypeAttrLocation TAL, |
8666 | | const ParsedAttributesView &attrs, |
8667 | 672M | Sema::CUDAFunctionTarget CFT) { |
8668 | | |
8669 | 672M | state.setParsedNoDeref(false); |
8670 | 672M | if (attrs.empty()) |
8671 | 633M | return; |
8672 | | |
8673 | | // Scan through and apply attributes to this type where it makes sense. Some |
8674 | | // attributes (such as __address_space__, __vector_size__, etc) apply to the |
8675 | | // type, but others can be present in the type specifiers even though they |
8676 | | // apply to the decl. Here we apply type attributes and ignore the rest. |
8677 | | |
8678 | | // This loop modifies the list pretty frequently, but we still need to make |
8679 | | // sure we visit every element once. Copy the attributes list, and iterate |
8680 | | // over that. |
8681 | 39.6M | ParsedAttributesView AttrsCopy{attrs}; |
8682 | 122M | for (ParsedAttr &attr : AttrsCopy) { |
8683 | | |
8684 | | // Skip attributes that were marked to be invalid. |
8685 | 122M | if (attr.isInvalid()) |
8686 | 75 | continue; |
8687 | | |
8688 | 122M | if (attr.isStandardAttributeSyntax() || attr.isRegularKeywordAttribute()122M ) { |
8689 | | // [[gnu::...]] attributes are treated as declaration attributes, so may |
8690 | | // not appertain to a DeclaratorChunk. If we handle them as type |
8691 | | // attributes, accept them in that position and diagnose the GCC |
8692 | | // incompatibility. |
8693 | 1.35M | if (attr.isGNUScope()) { |
8694 | 534 | assert(attr.isStandardAttributeSyntax()); |
8695 | 534 | bool IsTypeAttr = attr.isTypeAttr(); |
8696 | 534 | if (TAL == TAL_DeclChunk) { |
8697 | 16 | state.getSema().Diag(attr.getLoc(), |
8698 | 16 | IsTypeAttr |
8699 | 16 | ? diag::warn_gcc_ignores_type_attr7 |
8700 | 16 | : diag::warn_cxx11_gnu_attribute_on_type9 ) |
8701 | 16 | << attr; |
8702 | 16 | if (!IsTypeAttr) |
8703 | 9 | continue; |
8704 | 16 | } |
8705 | 1.35M | } else if (TAL != TAL_DeclSpec && TAL != TAL_DeclChunk1.35M && |
8706 | 1.35M | !attr.isTypeAttr()118k ) { |
8707 | | // Otherwise, only consider type processing for a C++11 attribute if |
8708 | | // - it has actually been applied to a type (decl-specifier-seq or |
8709 | | // declarator chunk), or |
8710 | | // - it is a type attribute, irrespective of where it was applied (so |
8711 | | // that we can support the legacy behavior of some type attributes |
8712 | | // that can be applied to the declaration name). |
8713 | 110k | continue; |
8714 | 110k | } |
8715 | 1.35M | } |
8716 | | |
8717 | | // If this is an attribute we can handle, do so now, |
8718 | | // otherwise, add it to the FnAttrs list for rechaining. |
8719 | 122M | switch (attr.getKind()) { |
8720 | 118M | default: |
8721 | | // A [[]] attribute on a declarator chunk must appertain to a type. |
8722 | 118M | if ((attr.isStandardAttributeSyntax() || |
8723 | 118M | attr.isRegularKeywordAttribute()118M ) && |
8724 | 118M | TAL == TAL_DeclChunk502 ) { |
8725 | 12 | state.getSema().Diag(attr.getLoc(), diag::err_attribute_not_type_attr) |
8726 | 12 | << attr << attr.isRegularKeywordAttribute(); |
8727 | 12 | attr.setUsedAsTypeAttr(); |
8728 | 12 | } |
8729 | 118M | break; |
8730 | | |
8731 | 535k | case ParsedAttr::UnknownAttribute: |
8732 | 535k | if (attr.isStandardAttributeSyntax()) { |
8733 | 16 | state.getSema().Diag(attr.getLoc(), |
8734 | 16 | diag::warn_unknown_attribute_ignored) |
8735 | 16 | << attr << attr.getRange(); |
8736 | | // Mark the attribute as invalid so we don't emit the same diagnostic |
8737 | | // multiple times. |
8738 | 16 | attr.setInvalid(); |
8739 | 16 | } |
8740 | 535k | break; |
8741 | | |
8742 | 163 | case ParsedAttr::IgnoredAttribute: |
8743 | 163 | break; |
8744 | | |
8745 | 68 | case ParsedAttr::AT_BTFTypeTag: |
8746 | 68 | HandleBTFTypeTagAttribute(type, attr, state); |
8747 | 68 | attr.setUsedAsTypeAttr(); |
8748 | 68 | break; |
8749 | | |
8750 | 36 | case ParsedAttr::AT_MayAlias: |
8751 | | // FIXME: This attribute needs to actually be handled, but if we ignore |
8752 | | // it it breaks large amounts of Linux software. |
8753 | 36 | attr.setUsedAsTypeAttr(); |
8754 | 36 | break; |
8755 | 5.19k | case ParsedAttr::AT_OpenCLPrivateAddressSpace: |
8756 | 22.5k | case ParsedAttr::AT_OpenCLGlobalAddressSpace: |
8757 | 22.5k | case ParsedAttr::AT_OpenCLGlobalDeviceAddressSpace: |
8758 | 22.6k | case ParsedAttr::AT_OpenCLGlobalHostAddressSpace: |
8759 | 37.5k | case ParsedAttr::AT_OpenCLLocalAddressSpace: |
8760 | 40.2k | case ParsedAttr::AT_OpenCLConstantAddressSpace: |
8761 | 42.1k | case ParsedAttr::AT_OpenCLGenericAddressSpace: |
8762 | 42.2k | case ParsedAttr::AT_HLSLGroupSharedAddressSpace: |
8763 | 43.2k | case ParsedAttr::AT_AddressSpace: |
8764 | 43.2k | HandleAddressSpaceTypeAttribute(type, attr, state); |
8765 | 43.2k | attr.setUsedAsTypeAttr(); |
8766 | 43.2k | break; |
8767 | 8.22k | OBJC_POINTER_TYPE_ATTRS_CASELIST292 : |
8768 | 8.22k | if (!handleObjCPointerTypeAttr(state, attr, type)) |
8769 | 1.62k | distributeObjCPointerTypeAttr(state, attr, type); |
8770 | 8.22k | attr.setUsedAsTypeAttr(); |
8771 | 8.22k | break; |
8772 | 36.0k | case ParsedAttr::AT_VectorSize: |
8773 | 36.0k | HandleVectorSizeAttr(type, attr, state.getSema()); |
8774 | 36.0k | attr.setUsedAsTypeAttr(); |
8775 | 36.0k | break; |
8776 | 5.47k | case ParsedAttr::AT_ExtVectorType: |
8777 | 5.47k | HandleExtVectorTypeAttr(type, attr, state.getSema()); |
8778 | 5.47k | attr.setUsedAsTypeAttr(); |
8779 | 5.47k | break; |
8780 | 6.42k | case ParsedAttr::AT_NeonVectorType: |
8781 | 6.42k | HandleNeonVectorTypeAttr(type, attr, state.getSema(), VectorKind::Neon); |
8782 | 6.42k | attr.setUsedAsTypeAttr(); |
8783 | 6.42k | break; |
8784 | 1.24k | case ParsedAttr::AT_NeonPolyVectorType: |
8785 | 1.24k | HandleNeonVectorTypeAttr(type, attr, state.getSema(), |
8786 | 1.24k | VectorKind::NeonPoly); |
8787 | 1.24k | attr.setUsedAsTypeAttr(); |
8788 | 1.24k | break; |
8789 | 511 | case ParsedAttr::AT_ArmSveVectorBits: |
8790 | 511 | HandleArmSveVectorBitsTypeAttr(type, attr, state.getSema()); |
8791 | 511 | attr.setUsedAsTypeAttr(); |
8792 | 511 | break; |
8793 | 1.58k | case ParsedAttr::AT_ArmMveStrictPolymorphism: { |
8794 | 1.58k | HandleArmMveStrictPolymorphismAttr(state, type, attr); |
8795 | 1.58k | attr.setUsedAsTypeAttr(); |
8796 | 1.58k | break; |
8797 | 292 | } |
8798 | 856 | case ParsedAttr::AT_RISCVRVVVectorBits: |
8799 | 856 | HandleRISCVRVVVectorBitsTypeAttr(type, attr, state.getSema()); |
8800 | 856 | attr.setUsedAsTypeAttr(); |
8801 | 856 | break; |
8802 | 8.74k | case ParsedAttr::AT_OpenCLAccess: |
8803 | 8.74k | HandleOpenCLAccessAttr(type, attr, state.getSema()); |
8804 | 8.74k | attr.setUsedAsTypeAttr(); |
8805 | 8.74k | break; |
8806 | 7.66k | case ParsedAttr::AT_LifetimeBound: |
8807 | 7.66k | if (TAL == TAL_DeclChunk) |
8808 | 8 | HandleLifetimeBoundAttr(state, type, attr); |
8809 | 7.66k | break; |
8810 | | |
8811 | 104 | case ParsedAttr::AT_NoDeref: { |
8812 | | // FIXME: `noderef` currently doesn't work correctly in [[]] syntax. |
8813 | | // See https://github.com/llvm/llvm-project/issues/55790 for details. |
8814 | | // For the time being, we simply emit a warning that the attribute is |
8815 | | // ignored. |
8816 | 104 | if (attr.isStandardAttributeSyntax()) { |
8817 | 5 | state.getSema().Diag(attr.getLoc(), diag::warn_attribute_ignored) |
8818 | 5 | << attr; |
8819 | 5 | break; |
8820 | 5 | } |
8821 | 99 | ASTContext &Ctx = state.getSema().Context; |
8822 | 99 | type = state.getAttributedType(createSimpleAttr<NoDerefAttr>(Ctx, attr), |
8823 | 99 | type, type); |
8824 | 99 | attr.setUsedAsTypeAttr(); |
8825 | 99 | state.setParsedNoDeref(true); |
8826 | 99 | break; |
8827 | 104 | } |
8828 | | |
8829 | 214 | case ParsedAttr::AT_MatrixType: |
8830 | 214 | HandleMatrixTypeAttr(type, attr, state.getSema()); |
8831 | 214 | attr.setUsedAsTypeAttr(); |
8832 | 214 | break; |
8833 | | |
8834 | 10 | case ParsedAttr::AT_WebAssemblyFuncref: { |
8835 | 10 | if (!HandleWebAssemblyFuncrefAttr(state, type, attr)) |
8836 | 8 | attr.setUsedAsTypeAttr(); |
8837 | 10 | break; |
8838 | 104 | } |
8839 | | |
8840 | 147 | MS_TYPE_ATTRS_CASELIST67 : |
8841 | 147 | if (!handleMSPointerTypeQualifierAttr(state, attr, type)) |
8842 | 123 | attr.setUsedAsTypeAttr(); |
8843 | 147 | break; |
8844 | | |
8845 | | |
8846 | 2.04M | NULLABILITY_TYPE_ATTRS_CASELIST1.04M : |
8847 | | // Either add nullability here or try to distribute it. We |
8848 | | // don't want to distribute the nullability specifier past any |
8849 | | // dependent type, because that complicates the user model. |
8850 | 2.04M | if (type->canHaveNullability() || type->isDependentType()13.6k || |
8851 | 2.04M | type->isArrayType()13.6k || |
8852 | 2.04M | !distributeNullabilityTypeAttr(state, type, attr)67 ) { |
8853 | 2.04M | unsigned endIndex; |
8854 | 2.04M | if (TAL == TAL_DeclChunk) |
8855 | 1.55M | endIndex = state.getCurrentChunkIndex(); |
8856 | 485k | else |
8857 | 485k | endIndex = state.getDeclarator().getNumTypeObjects(); |
8858 | 2.04M | bool allowOnArrayType = |
8859 | 2.04M | state.getDeclarator().isPrototypeContext() && |
8860 | 2.04M | !hasOuterPointerLikeChunk(state.getDeclarator(), endIndex)1.58M ; |
8861 | 2.04M | if (checkNullabilityTypeSpecifier( |
8862 | 2.04M | state, |
8863 | 2.04M | type, |
8864 | 2.04M | attr, |
8865 | 2.04M | allowOnArrayType)) { |
8866 | 56 | attr.setInvalid(); |
8867 | 56 | } |
8868 | | |
8869 | 2.04M | attr.setUsedAsTypeAttr(); |
8870 | 2.04M | } |
8871 | 2.04M | break; |
8872 | | |
8873 | 1.84k | case ParsedAttr::AT_ObjCKindOf: |
8874 | | // '__kindof' must be part of the decl-specifiers. |
8875 | 1.84k | switch (TAL) { |
8876 | 1.84k | case TAL_DeclSpec: |
8877 | 1.84k | break; |
8878 | | |
8879 | 1 | case TAL_DeclChunk: |
8880 | 1 | case TAL_DeclName: |
8881 | 1 | state.getSema().Diag(attr.getLoc(), |
8882 | 1 | diag::err_objc_kindof_wrong_position) |
8883 | 1 | << FixItHint::CreateRemoval(attr.getLoc()) |
8884 | 1 | << FixItHint::CreateInsertion( |
8885 | 1 | state.getDeclarator().getDeclSpec().getBeginLoc(), |
8886 | 1 | "__kindof "); |
8887 | 1 | break; |
8888 | 1.84k | } |
8889 | | |
8890 | | // Apply it regardless. |
8891 | 1.84k | if (checkObjCKindOfType(state, type, attr)) |
8892 | 2 | attr.setInvalid(); |
8893 | 1.84k | break; |
8894 | | |
8895 | 99.0k | case ParsedAttr::AT_NoThrow: |
8896 | | // Exception Specifications aren't generally supported in C mode throughout |
8897 | | // clang, so revert to attribute-based handling for C. |
8898 | 99.0k | if (!state.getSema().getLangOpts().CPlusPlus) |
8899 | 23.2k | break; |
8900 | 99.0k | [[fallthrough]];75.7k |
8901 | 33.0M | FUNCTION_TYPE_ATTRS_CASELIST102k : |
8902 | 33.0M | attr.setUsedAsTypeAttr(); |
8903 | | |
8904 | | // Attributes with standard syntax have strict rules for what they |
8905 | | // appertain to and hence should not use the "distribution" logic below. |
8906 | 33.0M | if (attr.isStandardAttributeSyntax()1.35M || |
8907 | 1.35M | attr.isRegularKeywordAttribute()1.35M ) { |
8908 | 1.23M | if (!handleFunctionTypeAttr(state, attr, type, CFT)) { |
8909 | 100 | diagnoseBadTypeAttribute(state.getSema(), attr, type); |
8910 | 100 | attr.setInvalid(); |
8911 | 100 | } |
8912 | 1.23M | break; |
8913 | 1.23M | } |
8914 | | |
8915 | | // Never process function type attributes as part of the |
8916 | | // declaration-specifiers. |
8917 | 116k | if (TAL == TAL_DeclSpec) |
8918 | 45.6k | distributeFunctionTypeAttrFromDeclSpec(state, attr, type, CFT); |
8919 | | |
8920 | | // Otherwise, handle the possible delays. |
8921 | 70.6k | else if (!handleFunctionTypeAttr(state, attr, type, CFT)) |
8922 | 34 | distributeFunctionTypeAttr(state, attr, type); |
8923 | 116k | break; |
8924 | 16 | case ParsedAttr::AT_AcquireHandle: { |
8925 | 16 | if (!type->isFunctionType()) |
8926 | 13 | return; |
8927 | | |
8928 | 3 | if (attr.getNumArgs() != 1) { |
8929 | 1 | state.getSema().Diag(attr.getLoc(), |
8930 | 1 | diag::err_attribute_wrong_number_arguments) |
8931 | 1 | << attr << 1; |
8932 | 1 | attr.setInvalid(); |
8933 | 1 | return; |
8934 | 1 | } |
8935 | | |
8936 | 2 | StringRef HandleType; |
8937 | 2 | if (!state.getSema().checkStringLiteralArgumentAttr(attr, 0, HandleType)) |
8938 | 0 | return; |
8939 | 2 | type = state.getAttributedType( |
8940 | 2 | AcquireHandleAttr::Create(state.getSema().Context, HandleType, attr), |
8941 | 2 | type, type); |
8942 | 2 | attr.setUsedAsTypeAttr(); |
8943 | 2 | break; |
8944 | 2 | } |
8945 | 56 | case ParsedAttr::AT_AnnotateType: { |
8946 | 56 | HandleAnnotateTypeAttr(state, type, attr); |
8947 | 56 | attr.setUsedAsTypeAttr(); |
8948 | 56 | break; |
8949 | 2 | } |
8950 | 122M | } |
8951 | | |
8952 | | // Handle attributes that are defined in a macro. We do not want this to be |
8953 | | // applied to ObjC builtin attributes. |
8954 | 122M | if (isa<AttributedType>(type) && attr.hasMacroIdentifier()3.60M && |
8955 | 122M | !type.getQualifiers().hasObjCLifetime()238k && |
8956 | 122M | !type.getQualifiers().hasObjCGCAttr()238k && |
8957 | 122M | attr.getKind() != ParsedAttr::AT_ObjCGC238k && |
8958 | 122M | attr.getKind() != ParsedAttr::AT_ObjCOwnership238k ) { |
8959 | 238k | const IdentifierInfo *MacroII = attr.getMacroIdentifier(); |
8960 | 238k | type = state.getSema().Context.getMacroQualifiedType(type, MacroII); |
8961 | 238k | state.setExpansionLocForMacroQualifiedType( |
8962 | 238k | cast<MacroQualifiedType>(type.getTypePtr()), |
8963 | 238k | attr.getMacroExpansionLoc()); |
8964 | 238k | } |
8965 | 122M | } |
8966 | 39.6M | } |
8967 | | |
8968 | 85 | void Sema::completeExprArrayBound(Expr *E) { |
8969 | 85 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { |
8970 | 83 | if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { |
8971 | 83 | if (isTemplateInstantiation(Var->getTemplateSpecializationKind())) { |
8972 | 26 | auto *Def = Var->getDefinition(); |
8973 | 26 | if (!Def) { |
8974 | 24 | SourceLocation PointOfInstantiation = E->getExprLoc(); |
8975 | 24 | runWithSufficientStackSpace(PointOfInstantiation, [&] { |
8976 | 24 | InstantiateVariableDefinition(PointOfInstantiation, Var); |
8977 | 24 | }); |
8978 | 24 | Def = Var->getDefinition(); |
8979 | | |
8980 | | // If we don't already have a point of instantiation, and we managed |
8981 | | // to instantiate a definition, this is the point of instantiation. |
8982 | | // Otherwise, we don't request an end-of-TU instantiation, so this is |
8983 | | // not a point of instantiation. |
8984 | | // FIXME: Is this really the right behavior? |
8985 | 24 | if (Var->getPointOfInstantiation().isInvalid() && Def8 ) { |
8986 | 7 | assert(Var->getTemplateSpecializationKind() == |
8987 | 7 | TSK_ImplicitInstantiation && |
8988 | 7 | "explicit instantiation with no point of instantiation"); |
8989 | 7 | Var->setTemplateSpecializationKind( |
8990 | 7 | Var->getTemplateSpecializationKind(), PointOfInstantiation); |
8991 | 7 | } |
8992 | 24 | } |
8993 | | |
8994 | | // Update the type to the definition's type both here and within the |
8995 | | // expression. |
8996 | 26 | if (Def) { |
8997 | 25 | DRE->setDecl(Def); |
8998 | 25 | QualType T = Def->getType(); |
8999 | 25 | DRE->setType(T); |
9000 | | // FIXME: Update the type on all intervening expressions. |
9001 | 25 | E->setType(T); |
9002 | 25 | } |
9003 | | |
9004 | | // We still go on to try to complete the type independently, as it |
9005 | | // may also require instantiations or diagnostics if it remains |
9006 | | // incomplete. |
9007 | 26 | } |
9008 | 83 | } |
9009 | 83 | } |
9010 | 85 | } |
9011 | | |
9012 | 681k | QualType Sema::getCompletedType(Expr *E) { |
9013 | | // Incomplete array types may be completed by the initializer attached to |
9014 | | // their definitions. For static data members of class templates and for |
9015 | | // variable templates, we need to instantiate the definition to get this |
9016 | | // initializer and complete the type. |
9017 | 681k | if (E->getType()->isIncompleteArrayType()) |
9018 | 85 | completeExprArrayBound(E); |
9019 | | |
9020 | | // FIXME: Are there other cases which require instantiating something other |
9021 | | // than the type to complete the type of an expression? |
9022 | | |
9023 | 681k | return E->getType(); |
9024 | 681k | } |
9025 | | |
9026 | | /// Ensure that the type of the given expression is complete. |
9027 | | /// |
9028 | | /// This routine checks whether the expression \p E has a complete type. If the |
9029 | | /// expression refers to an instantiable construct, that instantiation is |
9030 | | /// performed as needed to complete its type. Furthermore |
9031 | | /// Sema::RequireCompleteType is called for the expression's type (or in the |
9032 | | /// case of a reference type, the referred-to type). |
9033 | | /// |
9034 | | /// \param E The expression whose type is required to be complete. |
9035 | | /// \param Kind Selects which completeness rules should be applied. |
9036 | | /// \param Diagnoser The object that will emit a diagnostic if the type is |
9037 | | /// incomplete. |
9038 | | /// |
9039 | | /// \returns \c true if the type of \p E is incomplete and diagnosed, \c false |
9040 | | /// otherwise. |
9041 | | bool Sema::RequireCompleteExprType(Expr *E, CompleteTypeKind Kind, |
9042 | 13.1k | TypeDiagnoser &Diagnoser) { |
9043 | 13.1k | return RequireCompleteType(E->getExprLoc(), getCompletedType(E), Kind, |
9044 | 13.1k | Diagnoser); |
9045 | 13.1k | } |
9046 | | |
9047 | 297 | bool Sema::RequireCompleteExprType(Expr *E, unsigned DiagID) { |
9048 | 297 | BoundTypeDiagnoser<> Diagnoser(DiagID); |
9049 | 297 | return RequireCompleteExprType(E, CompleteTypeKind::Default, Diagnoser); |
9050 | 297 | } |
9051 | | |
9052 | | /// Ensure that the type T is a complete type. |
9053 | | /// |
9054 | | /// This routine checks whether the type @p T is complete in any |
9055 | | /// context where a complete type is required. If @p T is a complete |
9056 | | /// type, returns false. If @p T is a class template specialization, |
9057 | | /// this routine then attempts to perform class template |
9058 | | /// instantiation. If instantiation fails, or if @p T is incomplete |
9059 | | /// and cannot be completed, issues the diagnostic @p diag (giving it |
9060 | | /// the type @p T) and returns true. |
9061 | | /// |
9062 | | /// @param Loc The location in the source that the incomplete type |
9063 | | /// diagnostic should refer to. |
9064 | | /// |
9065 | | /// @param T The type that this routine is examining for completeness. |
9066 | | /// |
9067 | | /// @param Kind Selects which completeness rules should be applied. |
9068 | | /// |
9069 | | /// @returns @c true if @p T is incomplete and a diagnostic was emitted, |
9070 | | /// @c false otherwise. |
9071 | | bool Sema::RequireCompleteType(SourceLocation Loc, QualType T, |
9072 | | CompleteTypeKind Kind, |
9073 | 44.3M | TypeDiagnoser &Diagnoser) { |
9074 | 44.3M | if (RequireCompleteTypeImpl(Loc, T, Kind, &Diagnoser)) |
9075 | 13.1k | return true; |
9076 | 44.3M | if (const TagType *Tag = T->getAs<TagType>()) { |
9077 | 7.69M | if (!Tag->getDecl()->isCompleteDefinitionRequired()) { |
9078 | 1.01M | Tag->getDecl()->setCompleteDefinitionRequired(); |
9079 | 1.01M | Consumer.HandleTagDeclRequiredDefinition(Tag->getDecl()); |
9080 | 1.01M | } |
9081 | 7.69M | } |
9082 | 44.3M | return false; |
9083 | 44.3M | } |
9084 | | |
9085 | 14 | bool Sema::hasStructuralCompatLayout(Decl *D, Decl *Suggested) { |
9086 | 14 | llvm::DenseSet<std::pair<Decl *, Decl *>> NonEquivalentDecls; |
9087 | 14 | if (!Suggested) |
9088 | 0 | return false; |
9089 | | |
9090 | | // FIXME: Add a specific mode for C11 6.2.7/1 in StructuralEquivalenceContext |
9091 | | // and isolate from other C++ specific checks. |
9092 | 14 | StructuralEquivalenceContext Ctx( |
9093 | 14 | D->getASTContext(), Suggested->getASTContext(), NonEquivalentDecls, |
9094 | 14 | StructuralEquivalenceKind::Default, |
9095 | 14 | false /*StrictTypeSpelling*/, true /*Complain*/, |
9096 | 14 | true /*ErrorOnTagTypeMismatch*/); |
9097 | 14 | return Ctx.IsEquivalent(D, Suggested); |
9098 | 14 | } |
9099 | | |
9100 | | bool Sema::hasAcceptableDefinition(NamedDecl *D, NamedDecl **Suggested, |
9101 | 33.0M | AcceptableKind Kind, bool OnlyNeedComplete) { |
9102 | | // Easy case: if we don't have modules, all declarations are visible. |
9103 | 33.0M | if (!getLangOpts().Modules && !getLangOpts().ModulesLocalVisibility31.2M ) |
9104 | 31.2M | return true; |
9105 | | |
9106 | | // If this definition was instantiated from a template, map back to the |
9107 | | // pattern from which it was instantiated. |
9108 | 1.86M | if (isa<TagDecl>(D) && cast<TagDecl>(D)->isBeingDefined()1.79M ) { |
9109 | | // We're in the middle of defining it; this definition should be treated |
9110 | | // as visible. |
9111 | 6 | return true; |
9112 | 1.86M | } else if (auto *RD = dyn_cast<CXXRecordDecl>(D)) { |
9113 | 1.13M | if (auto *Pattern = RD->getTemplateInstantiationPattern()) |
9114 | 550k | RD = Pattern; |
9115 | 1.13M | D = RD->getDefinition(); |
9116 | 1.13M | } else if (auto *732k ED732k = dyn_cast<EnumDecl>(D)) { |
9117 | 642k | if (auto *Pattern = ED->getTemplateInstantiationPattern()) |
9118 | 48.9k | ED = Pattern; |
9119 | 642k | if (OnlyNeedComplete && (629k ED->isFixed()629k || getLangOpts().MSVCCompat343k )) { |
9120 | | // If the enum has a fixed underlying type, it may have been forward |
9121 | | // declared. In -fms-compatibility, `enum Foo;` will also forward declare |
9122 | | // the enum and assign it the underlying type of `int`. Since we're only |
9123 | | // looking for a complete type (not a definition), any visible declaration |
9124 | | // of it will do. |
9125 | 286k | *Suggested = nullptr; |
9126 | 287k | for (auto *Redecl : ED->redecls()) { |
9127 | 287k | if (isAcceptable(Redecl, Kind)) |
9128 | 286k | return true; |
9129 | 44 | if (Redecl->isThisDeclarationADefinition() || |
9130 | 44 | (8 Redecl->isCanonicalDecl()8 && !*Suggested8 )) |
9131 | 38 | *Suggested = Redecl; |
9132 | 44 | } |
9133 | | |
9134 | 2 | return false; |
9135 | 286k | } |
9136 | 355k | D = ED->getDefinition(); |
9137 | 355k | } else if (auto *90.1k FD90.1k = dyn_cast<FunctionDecl>(D)) { |
9138 | 15.9k | if (auto *Pattern = FD->getTemplateInstantiationPattern()) |
9139 | 1 | FD = Pattern; |
9140 | 15.9k | D = FD->getDefinition(); |
9141 | 74.1k | } else if (auto *VD = dyn_cast<VarDecl>(D)) { |
9142 | 52.0k | if (auto *Pattern = VD->getTemplateInstantiationPattern()) |
9143 | 6.59k | VD = Pattern; |
9144 | 52.0k | D = VD->getDefinition(); |
9145 | 52.0k | } |
9146 | | |
9147 | 1.57M | assert(D && "missing definition for pattern of instantiated definition"); |
9148 | | |
9149 | 1.57M | *Suggested = D; |
9150 | | |
9151 | 1.58M | auto DefinitionIsAcceptable = [&] { |
9152 | | // The (primary) definition might be in a visible module. |
9153 | 1.58M | if (isAcceptable(D, Kind)) |
9154 | 1.57M | return true; |
9155 | | |
9156 | | // A visible module might have a merged definition instead. |
9157 | 9.45k | if (D->isModulePrivate() ? hasMergedDefinitionInCurrentModule(D)18 |
9158 | 9.45k | : hasVisibleMergedDefinition(D)9.43k ) { |
9159 | 619 | if (CodeSynthesisContexts.empty() && |
9160 | 619 | !getLangOpts().ModulesLocalVisibility616 ) { |
9161 | | // Cache the fact that this definition is implicitly visible because |
9162 | | // there is a visible merged definition. |
9163 | 34 | D->setVisibleDespiteOwningModule(); |
9164 | 34 | } |
9165 | 619 | return true; |
9166 | 619 | } |
9167 | | |
9168 | 8.83k | return false; |
9169 | 9.45k | }; |
9170 | | |
9171 | 1.57M | if (DefinitionIsAcceptable()) |
9172 | 1.57M | return true; |
9173 | | |
9174 | | // The external source may have additional definitions of this entity that are |
9175 | | // visible, so complete the redeclaration chain now and ask again. |
9176 | 4.41k | if (auto *Source = Context.getExternalSource()) { |
9177 | 4.41k | Source->CompleteRedeclChain(D); |
9178 | 4.41k | return DefinitionIsAcceptable(); |
9179 | 4.41k | } |
9180 | | |
9181 | 0 | return false; |
9182 | 4.41k | } |
9183 | | |
9184 | | /// Determine whether there is any declaration of \p D that was ever a |
9185 | | /// definition (perhaps before module merging) and is currently visible. |
9186 | | /// \param D The definition of the entity. |
9187 | | /// \param Suggested Filled in with the declaration that should be made visible |
9188 | | /// in order to provide a definition of this entity. |
9189 | | /// \param OnlyNeedComplete If \c true, we only need the type to be complete, |
9190 | | /// not defined. This only matters for enums with a fixed underlying |
9191 | | /// type, since in all other cases, a type is complete if and only if it |
9192 | | /// is defined. |
9193 | | bool Sema::hasVisibleDefinition(NamedDecl *D, NamedDecl **Suggested, |
9194 | 909 | bool OnlyNeedComplete) { |
9195 | 909 | return hasAcceptableDefinition(D, Suggested, Sema::AcceptableKind::Visible, |
9196 | 909 | OnlyNeedComplete); |
9197 | 909 | } |
9198 | | |
9199 | | /// Determine whether there is any declaration of \p D that was ever a |
9200 | | /// definition (perhaps before module merging) and is currently |
9201 | | /// reachable. |
9202 | | /// \param D The definition of the entity. |
9203 | | /// \param Suggested Filled in with the declaration that should be made |
9204 | | /// reachable |
9205 | | /// in order to provide a definition of this entity. |
9206 | | /// \param OnlyNeedComplete If \c true, we only need the type to be complete, |
9207 | | /// not defined. This only matters for enums with a fixed underlying |
9208 | | /// type, since in all other cases, a type is complete if and only if it |
9209 | | /// is defined. |
9210 | | bool Sema::hasReachableDefinition(NamedDecl *D, NamedDecl **Suggested, |
9211 | 33.0M | bool OnlyNeedComplete) { |
9212 | 33.0M | return hasAcceptableDefinition(D, Suggested, Sema::AcceptableKind::Reachable, |
9213 | 33.0M | OnlyNeedComplete); |
9214 | 33.0M | } |
9215 | | |
9216 | | /// Locks in the inheritance model for the given class and all of its bases. |
9217 | 2.38k | static void assignInheritanceModel(Sema &S, CXXRecordDecl *RD) { |
9218 | 2.38k | RD = RD->getMostRecentNonInjectedDecl(); |
9219 | 2.38k | if (!RD->hasAttr<MSInheritanceAttr>()) { |
9220 | 715 | MSInheritanceModel IM; |
9221 | 715 | bool BestCase = false; |
9222 | 715 | switch (S.MSPointerToMemberRepresentationMethod) { |
9223 | 681 | case LangOptions::PPTMK_BestCase: |
9224 | 681 | BestCase = true; |
9225 | 681 | IM = RD->calculateInheritanceModel(); |
9226 | 681 | break; |
9227 | 4 | case LangOptions::PPTMK_FullGeneralitySingleInheritance: |
9228 | 4 | IM = MSInheritanceModel::Single; |
9229 | 4 | break; |
9230 | 2 | case LangOptions::PPTMK_FullGeneralityMultipleInheritance: |
9231 | 2 | IM = MSInheritanceModel::Multiple; |
9232 | 2 | break; |
9233 | 28 | case LangOptions::PPTMK_FullGeneralityVirtualInheritance: |
9234 | 28 | IM = MSInheritanceModel::Unspecified; |
9235 | 28 | break; |
9236 | 715 | } |
9237 | | |
9238 | 715 | SourceRange Loc = S.ImplicitMSInheritanceAttrLoc.isValid() |
9239 | 715 | ? S.ImplicitMSInheritanceAttrLoc56 |
9240 | 715 | : RD->getSourceRange()659 ; |
9241 | 715 | RD->addAttr(MSInheritanceAttr::CreateImplicit( |
9242 | 715 | S.getASTContext(), BestCase, Loc, MSInheritanceAttr::Spelling(IM))); |
9243 | 715 | S.Consumer.AssignInheritanceModel(RD); |
9244 | 715 | } |
9245 | 2.38k | } |
9246 | | |
9247 | | /// The implementation of RequireCompleteType |
9248 | | bool Sema::RequireCompleteTypeImpl(SourceLocation Loc, QualType T, |
9249 | | CompleteTypeKind Kind, |
9250 | 70.7M | TypeDiagnoser *Diagnoser) { |
9251 | | // FIXME: Add this assertion to make sure we always get instantiation points. |
9252 | | // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); |
9253 | | // FIXME: Add this assertion to help us flush out problems with |
9254 | | // checking for dependent types and type-dependent expressions. |
9255 | | // |
9256 | | // assert(!T->isDependentType() && |
9257 | | // "Can't ask whether a dependent type is complete"); |
9258 | | |
9259 | 70.7M | if (const MemberPointerType *MPTy = T->getAs<MemberPointerType>()) { |
9260 | 11.5k | if (!MPTy->getClass()->isDependentType()) { |
9261 | 7.00k | if (getLangOpts().CompleteMemberPointers && |
9262 | 7.00k | !MPTy->getClass()->getAsCXXRecordDecl()->isBeingDefined()4 && |
9263 | 7.00k | RequireCompleteType(Loc, QualType(MPTy->getClass(), 0), Kind, |
9264 | 2 | diag::err_memptr_incomplete)) |
9265 | 1 | return true; |
9266 | | |
9267 | | // We lock in the inheritance model once somebody has asked us to ensure |
9268 | | // that a pointer-to-member type is complete. |
9269 | 7.00k | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { |
9270 | 2.38k | (void)isCompleteType(Loc, QualType(MPTy->getClass(), 0)); |
9271 | 2.38k | assignInheritanceModel(*this, MPTy->getMostRecentCXXRecordDecl()); |
9272 | 2.38k | } |
9273 | 7.00k | } |
9274 | 11.5k | } |
9275 | | |
9276 | 70.7M | NamedDecl *Def = nullptr; |
9277 | 70.7M | bool AcceptSizeless = (Kind == CompleteTypeKind::AcceptSizeless); |
9278 | 70.7M | bool Incomplete = (T->isIncompleteType(&Def) || |
9279 | 70.7M | (70.0M !AcceptSizeless70.0M && T->isSizelessBuiltinType()7.34M )); |
9280 | | |
9281 | | // Check that any necessary explicit specializations are visible. For an |
9282 | | // enum, we just need the declaration, so don't check this. |
9283 | 70.7M | if (Def && !isa<EnumDecl>(Def)31.9M ) |
9284 | 20.9M | checkSpecializationReachability(Loc, Def); |
9285 | | |
9286 | | // If we have a complete type, we're done. |
9287 | 70.7M | if (!Incomplete) { |
9288 | 70.0M | NamedDecl *Suggested = nullptr; |
9289 | 70.0M | if (Def && |
9290 | 70.0M | !hasReachableDefinition(Def, &Suggested, /*OnlyNeedComplete=*/true)31.2M ) { |
9291 | | // If the user is going to see an error here, recover by making the |
9292 | | // definition visible. |
9293 | 328 | bool TreatAsComplete = Diagnoser && !isSFINAEContext()203 ; |
9294 | 328 | if (Diagnoser && Suggested203 ) |
9295 | 203 | diagnoseMissingImport(Loc, Suggested, MissingImportKind::Definition, |
9296 | 203 | /*Recover*/ TreatAsComplete); |
9297 | 328 | return !TreatAsComplete; |
9298 | 70.0M | } else if (Def && !TemplateInstCallbacks.empty()31.2M ) { |
9299 | 40 | CodeSynthesisContext TempInst; |
9300 | 40 | TempInst.Kind = CodeSynthesisContext::Memoization; |
9301 | 40 | TempInst.Template = Def; |
9302 | 40 | TempInst.Entity = Def; |
9303 | 40 | TempInst.PointOfInstantiation = Loc; |
9304 | 40 | atTemplateBegin(TemplateInstCallbacks, *this, TempInst); |
9305 | 40 | atTemplateEnd(TemplateInstCallbacks, *this, TempInst); |
9306 | 40 | } |
9307 | | |
9308 | 70.0M | return false; |
9309 | 70.0M | } |
9310 | | |
9311 | 660k | TagDecl *Tag = dyn_cast_or_null<TagDecl>(Def); |
9312 | 660k | ObjCInterfaceDecl *IFace = dyn_cast_or_null<ObjCInterfaceDecl>(Def); |
9313 | | |
9314 | | // Give the external source a chance to provide a definition of the type. |
9315 | | // This is kept separate from completing the redeclaration chain so that |
9316 | | // external sources such as LLDB can avoid synthesizing a type definition |
9317 | | // unless it's actually needed. |
9318 | 660k | if (Tag || IFace29.9k ) { |
9319 | | // Avoid diagnosing invalid decls as incomplete. |
9320 | 630k | if (Def->isInvalidDecl()) |
9321 | 11 | return true; |
9322 | | |
9323 | | // Give the external AST source a chance to complete the type. |
9324 | 630k | if (auto *Source = Context.getExternalSource()) { |
9325 | 47.6k | if (Tag && Tag->hasExternalLexicalStorage()47.6k ) |
9326 | 86 | Source->CompleteType(Tag); |
9327 | 47.6k | if (IFace && IFace->hasExternalLexicalStorage()35 ) |
9328 | 35 | Source->CompleteType(IFace); |
9329 | | // If the external source completed the type, go through the motions |
9330 | | // again to ensure we're allowed to use the completed type. |
9331 | 47.6k | if (!T->isIncompleteType()) |
9332 | 87 | return RequireCompleteTypeImpl(Loc, T, Kind, Diagnoser); |
9333 | 47.6k | } |
9334 | 630k | } |
9335 | | |
9336 | | // If we have a class template specialization or a class member of a |
9337 | | // class template specialization, or an array with known size of such, |
9338 | | // try to instantiate it. |
9339 | 660k | if (auto *RD = dyn_cast_or_null<CXXRecordDecl>(Tag)) { |
9340 | 630k | bool Instantiated = false; |
9341 | 630k | bool Diagnosed = false; |
9342 | 630k | if (RD->isDependentContext()) { |
9343 | | // Don't try to instantiate a dependent class (eg, a member template of |
9344 | | // an instantiated class template specialization). |
9345 | | // FIXME: Can this ever happen? |
9346 | 630k | } else if (auto *ClassTemplateSpec = |
9347 | 630k | dyn_cast<ClassTemplateSpecializationDecl>(RD)) { |
9348 | 577k | if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) { |
9349 | 577k | runWithSufficientStackSpace(Loc, [&] { |
9350 | 577k | Diagnosed = InstantiateClassTemplateSpecialization( |
9351 | 577k | Loc, ClassTemplateSpec, TSK_ImplicitInstantiation, |
9352 | 577k | /*Complain=*/Diagnoser); |
9353 | 577k | }); |
9354 | 577k | Instantiated = true; |
9355 | 577k | } |
9356 | 577k | } else { |
9357 | 52.6k | CXXRecordDecl *Pattern = RD->getInstantiatedFromMemberClass(); |
9358 | 52.6k | if (!RD->isBeingDefined() && Pattern51.6k ) { |
9359 | 14.7k | MemberSpecializationInfo *MSI = RD->getMemberSpecializationInfo(); |
9360 | 14.7k | assert(MSI && "Missing member specialization information?"); |
9361 | | // This record was instantiated from a class within a template. |
9362 | 14.7k | if (MSI->getTemplateSpecializationKind() != |
9363 | 14.7k | TSK_ExplicitSpecialization) { |
9364 | 14.7k | runWithSufficientStackSpace(Loc, [&] { |
9365 | 14.7k | Diagnosed = InstantiateClass(Loc, RD, Pattern, |
9366 | 14.7k | getTemplateInstantiationArgs(RD), |
9367 | 14.7k | TSK_ImplicitInstantiation, |
9368 | 14.7k | /*Complain=*/Diagnoser); |
9369 | 14.7k | }); |
9370 | 14.7k | Instantiated = true; |
9371 | 14.7k | } |
9372 | 14.7k | } |
9373 | 52.6k | } |
9374 | | |
9375 | 630k | if (Instantiated) { |
9376 | | // Instantiate* might have already complained that the template is not |
9377 | | // defined, if we asked it to. |
9378 | 592k | if (Diagnoser && Diagnosed546k ) |
9379 | 6.07k | return true; |
9380 | | // If we instantiated a definition, check that it's usable, even if |
9381 | | // instantiation produced an error, so that repeated calls to this |
9382 | | // function give consistent answers. |
9383 | 586k | if (!T->isIncompleteType()) |
9384 | 546k | return RequireCompleteTypeImpl(Loc, T, Kind, Diagnoser); |
9385 | 586k | } |
9386 | 630k | } |
9387 | | |
9388 | | // FIXME: If we didn't instantiate a definition because of an explicit |
9389 | | // specialization declaration, check that it's visible. |
9390 | | |
9391 | 107k | if (!Diagnoser) |
9392 | 100k | return true; |
9393 | | |
9394 | 7.08k | Diagnoser->diagnose(*this, Loc, T); |
9395 | | |
9396 | | // If the type was a forward declaration of a class/struct/union |
9397 | | // type, produce a note. |
9398 | 7.08k | if (Tag && !Tag->isInvalidDecl()6.51k && !Tag->getLocation().isInvalid()6.51k ) |
9399 | 6.50k | Diag(Tag->getLocation(), |
9400 | 6.50k | Tag->isBeingDefined() ? diag::note_type_being_defined58 |
9401 | 6.50k | : diag::note_forward_declaration6.44k ) |
9402 | 6.50k | << Context.getTagDeclType(Tag); |
9403 | | |
9404 | | // If the Objective-C class was a forward declaration, produce a note. |
9405 | 7.08k | if (IFace && !IFace->isInvalidDecl()126 && !IFace->getLocation().isInvalid()126 ) |
9406 | 120 | Diag(IFace->getLocation(), diag::note_forward_class); |
9407 | | |
9408 | | // If we have external information that we can use to suggest a fix, |
9409 | | // produce a note. |
9410 | 7.08k | if (ExternalSource) |
9411 | 157 | ExternalSource->MaybeDiagnoseMissingCompleteType(Loc, T); |
9412 | | |
9413 | 7.08k | return true; |
9414 | 107k | } |
9415 | | |
9416 | | bool Sema::RequireCompleteType(SourceLocation Loc, QualType T, |
9417 | 24.0M | CompleteTypeKind Kind, unsigned DiagID) { |
9418 | 24.0M | BoundTypeDiagnoser<> Diagnoser(DiagID); |
9419 | 24.0M | return RequireCompleteType(Loc, T, Kind, Diagnoser); |
9420 | 24.0M | } |
9421 | | |
9422 | | /// Get diagnostic %select index for tag kind for |
9423 | | /// literal type diagnostic message. |
9424 | | /// WARNING: Indexes apply to particular diagnostics only! |
9425 | | /// |
9426 | | /// \returns diagnostic %select index. |
9427 | 6 | static unsigned getLiteralDiagFromTagKind(TagTypeKind Tag) { |
9428 | 6 | switch (Tag) { |
9429 | 5 | case TagTypeKind::Struct: |
9430 | 5 | return 0; |
9431 | 0 | case TagTypeKind::Interface: |
9432 | 0 | return 1; |
9433 | 1 | case TagTypeKind::Class: |
9434 | 1 | return 2; |
9435 | 0 | default: llvm_unreachable("Invalid tag kind for literal type diagnostic!"); |
9436 | 6 | } |
9437 | 6 | } |
9438 | | |
9439 | | /// Ensure that the type T is a literal type. |
9440 | | /// |
9441 | | /// This routine checks whether the type @p T is a literal type. If @p T is an |
9442 | | /// incomplete type, an attempt is made to complete it. If @p T is a literal |
9443 | | /// type, or @p AllowIncompleteType is true and @p T is an incomplete type, |
9444 | | /// returns false. Otherwise, this routine issues the diagnostic @p PD (giving |
9445 | | /// it the type @p T), along with notes explaining why the type is not a |
9446 | | /// literal type, and returns true. |
9447 | | /// |
9448 | | /// @param Loc The location in the source that the non-literal type |
9449 | | /// diagnostic should refer to. |
9450 | | /// |
9451 | | /// @param T The type that this routine is examining for literalness. |
9452 | | /// |
9453 | | /// @param Diagnoser Emits a diagnostic if T is not a literal type. |
9454 | | /// |
9455 | | /// @returns @c true if @p T is not a literal type and a diagnostic was emitted, |
9456 | | /// @c false otherwise. |
9457 | | bool Sema::RequireLiteralType(SourceLocation Loc, QualType T, |
9458 | 545k | TypeDiagnoser &Diagnoser) { |
9459 | 545k | assert(!T->isDependentType() && "type should not be dependent"); |
9460 | | |
9461 | 545k | QualType ElemType = Context.getBaseElementType(T); |
9462 | 545k | if ((isCompleteType(Loc, ElemType) || ElemType->isVoidType()4.06k ) && |
9463 | 545k | T->isLiteralType(Context)545k ) |
9464 | 545k | return false; |
9465 | | |
9466 | 122 | Diagnoser.diagnose(*this, Loc, T); |
9467 | | |
9468 | 122 | if (T->isVariableArrayType()) |
9469 | 4 | return true; |
9470 | | |
9471 | 118 | const RecordType *RT = ElemType->getAs<RecordType>(); |
9472 | 118 | if (!RT) |
9473 | 9 | return true; |
9474 | | |
9475 | 109 | const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); |
9476 | | |
9477 | | // A partially-defined class type can't be a literal type, because a literal |
9478 | | // class type must have a trivial destructor (which can't be checked until |
9479 | | // the class definition is complete). |
9480 | 109 | if (RequireCompleteType(Loc, ElemType, diag::note_non_literal_incomplete, T)) |
9481 | 4 | return true; |
9482 | | |
9483 | | // [expr.prim.lambda]p3: |
9484 | | // This class type is [not] a literal type. |
9485 | 105 | if (RD->isLambda() && !getLangOpts().CPlusPlus173 ) { |
9486 | 3 | Diag(RD->getLocation(), diag::note_non_literal_lambda); |
9487 | 3 | return true; |
9488 | 3 | } |
9489 | | |
9490 | | // If the class has virtual base classes, then it's not an aggregate, and |
9491 | | // cannot have any constexpr constructors or a trivial default constructor, |
9492 | | // so is non-literal. This is better to diagnose than the resulting absence |
9493 | | // of constexpr constructors. |
9494 | 102 | if (RD->getNumVBases()) { |
9495 | 6 | Diag(RD->getLocation(), diag::note_non_literal_virtual_base) |
9496 | 6 | << getLiteralDiagFromTagKind(RD->getTagKind()) << RD->getNumVBases(); |
9497 | 6 | for (const auto &I : RD->vbases()) |
9498 | 6 | Diag(I.getBeginLoc(), diag::note_constexpr_virtual_base_here) |
9499 | 6 | << I.getSourceRange(); |
9500 | 96 | } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor()81 && |
9501 | 96 | !RD->hasTrivialDefaultConstructor()67 ) { |
9502 | 67 | Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; |
9503 | 67 | } else if (29 RD->hasNonLiteralTypeFieldsOrBases()29 ) { |
9504 | 16 | for (const auto &I : RD->bases()) { |
9505 | 8 | if (!I.getType()->isLiteralType(Context)) { |
9506 | 5 | Diag(I.getBeginLoc(), diag::note_non_literal_base_class) |
9507 | 5 | << RD << I.getType() << I.getSourceRange(); |
9508 | 5 | return true; |
9509 | 5 | } |
9510 | 8 | } |
9511 | 11 | for (const auto *I : RD->fields()) { |
9512 | 11 | if (!I->getType()->isLiteralType(Context) || |
9513 | 11 | I->getType().isVolatileQualified()2 ) { |
9514 | 11 | Diag(I->getLocation(), diag::note_non_literal_field) |
9515 | 11 | << RD << I << I->getType() |
9516 | 11 | << I->getType().isVolatileQualified(); |
9517 | 11 | return true; |
9518 | 11 | } |
9519 | 11 | } |
9520 | 13 | } else if (getLangOpts().CPlusPlus20 ? !RD->hasConstexprDestructor()5 |
9521 | 13 | : !RD->hasTrivialDestructor()8 ) { |
9522 | | // All fields and bases are of literal types, so have trivial or constexpr |
9523 | | // destructors. If this class's destructor is non-trivial / non-constexpr, |
9524 | | // it must be user-declared. |
9525 | 13 | CXXDestructorDecl *Dtor = RD->getDestructor(); |
9526 | 13 | assert(Dtor && "class has literal fields and bases but no dtor?"); |
9527 | 13 | if (!Dtor) |
9528 | 0 | return true; |
9529 | | |
9530 | 13 | if (getLangOpts().CPlusPlus20) { |
9531 | 5 | Diag(Dtor->getLocation(), diag::note_non_literal_non_constexpr_dtor) |
9532 | 5 | << RD; |
9533 | 8 | } else { |
9534 | 8 | Diag(Dtor->getLocation(), Dtor->isUserProvided() |
9535 | 8 | ? diag::note_non_literal_user_provided_dtor6 |
9536 | 8 | : diag::note_non_literal_nontrivial_dtor2 ) |
9537 | 8 | << RD; |
9538 | 8 | if (!Dtor->isUserProvided()) |
9539 | 2 | SpecialMemberIsTrivial(Dtor, CXXDestructor, TAH_IgnoreTrivialABI, |
9540 | 2 | /*Diagnose*/ true); |
9541 | 8 | } |
9542 | 13 | } |
9543 | | |
9544 | 86 | return true; |
9545 | 102 | } |
9546 | | |
9547 | 370k | bool Sema::RequireLiteralType(SourceLocation Loc, QualType T, unsigned DiagID) { |
9548 | 370k | BoundTypeDiagnoser<> Diagnoser(DiagID); |
9549 | 370k | return RequireLiteralType(Loc, T, Diagnoser); |
9550 | 370k | } |
9551 | | |
9552 | | /// Retrieve a version of the type 'T' that is elaborated by Keyword, qualified |
9553 | | /// by the nested-name-specifier contained in SS, and that is (re)declared by |
9554 | | /// OwnedTagDecl, which is nullptr if this is not a (re)declaration. |
9555 | | QualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, |
9556 | | const CXXScopeSpec &SS, QualType T, |
9557 | 3.65M | TagDecl *OwnedTagDecl) { |
9558 | 3.65M | if (T.isNull()) |
9559 | 0 | return T; |
9560 | 3.65M | return Context.getElaboratedType( |
9561 | 3.65M | Keyword, SS.isValid() ? SS.getScopeRep()271k : nullptr3.38M , T, OwnedTagDecl); |
9562 | 3.65M | } |
9563 | | |
9564 | 3.58k | QualType Sema::BuildTypeofExprType(Expr *E, TypeOfKind Kind) { |
9565 | 3.58k | assert(!E->hasPlaceholderType() && "unexpected placeholder"); |
9566 | | |
9567 | 3.58k | if (!getLangOpts().CPlusPlus && E->refersToBitField()803 ) |
9568 | 3 | Diag(E->getExprLoc(), diag::err_sizeof_alignof_typeof_bitfield) |
9569 | 3 | << (Kind == TypeOfKind::Unqualified ? 31 : 22 ); |
9570 | | |
9571 | 3.58k | if (!E->isTypeDependent()) { |
9572 | 2.33k | QualType T = E->getType(); |
9573 | 2.33k | if (const TagType *TT = T->getAs<TagType>()) |
9574 | 43 | DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); |
9575 | 2.33k | } |
9576 | 3.58k | return Context.getTypeOfExprType(E, Kind); |
9577 | 3.58k | } |
9578 | | |
9579 | | /// getDecltypeForExpr - Given an expr, will return the decltype for |
9580 | | /// that expression, according to the rules in C++11 |
9581 | | /// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. |
9582 | 229k | QualType Sema::getDecltypeForExpr(Expr *E) { |
9583 | 229k | if (E->isTypeDependent()) |
9584 | 104k | return Context.DependentTy; |
9585 | | |
9586 | 124k | Expr *IDExpr = E; |
9587 | 124k | if (auto *ImplCastExpr = dyn_cast<ImplicitCastExpr>(E)) |
9588 | 7 | IDExpr = ImplCastExpr->getSubExpr(); |
9589 | | |
9590 | | // C++11 [dcl.type.simple]p4: |
9591 | | // The type denoted by decltype(e) is defined as follows: |
9592 | | |
9593 | | // C++20: |
9594 | | // - if E is an unparenthesized id-expression naming a non-type |
9595 | | // template-parameter (13.2), decltype(E) is the type of the |
9596 | | // template-parameter after performing any necessary type deduction |
9597 | | // Note that this does not pick up the implicit 'const' for a template |
9598 | | // parameter object. This rule makes no difference before C++20 so we apply |
9599 | | // it unconditionally. |
9600 | 124k | if (const auto *SNTTPE = dyn_cast<SubstNonTypeTemplateParmExpr>(IDExpr)) |
9601 | 113 | return SNTTPE->getParameterType(Context); |
9602 | | |
9603 | | // - if e is an unparenthesized id-expression or an unparenthesized class |
9604 | | // member access (5.2.5), decltype(e) is the type of the entity named |
9605 | | // by e. If there is no such entity, or if e names a set of overloaded |
9606 | | // functions, the program is ill-formed; |
9607 | | // |
9608 | | // We apply the same rules for Objective-C ivar and property references. |
9609 | 124k | if (const auto *DRE = dyn_cast<DeclRefExpr>(IDExpr)) { |
9610 | 4.08k | const ValueDecl *VD = DRE->getDecl(); |
9611 | 4.08k | QualType T = VD->getType(); |
9612 | 4.08k | return isa<TemplateParamObjectDecl>(VD) ? T.getUnqualifiedType()0 : T; |
9613 | 4.08k | } |
9614 | 120k | if (const auto *ME = dyn_cast<MemberExpr>(IDExpr)) { |
9615 | 2.14k | if (const auto *VD = ME->getMemberDecl()) |
9616 | 2.14k | if (isa<FieldDecl>(VD) || isa<VarDecl>(VD)1 ) |
9617 | 2.14k | return VD->getType(); |
9618 | 118k | } else if (const auto *IR = dyn_cast<ObjCIvarRefExpr>(IDExpr)) { |
9619 | 20 | return IR->getDecl()->getType(); |
9620 | 118k | } else if (const auto *PR = dyn_cast<ObjCPropertyRefExpr>(IDExpr)) { |
9621 | 0 | if (PR->isExplicitProperty()) |
9622 | 0 | return PR->getExplicitProperty()->getType(); |
9623 | 118k | } else if (const auto *PE = dyn_cast<PredefinedExpr>(IDExpr)) { |
9624 | 3 | return PE->getType(); |
9625 | 3 | } |
9626 | | |
9627 | | // C++11 [expr.lambda.prim]p18: |
9628 | | // Every occurrence of decltype((x)) where x is a possibly |
9629 | | // parenthesized id-expression that names an entity of automatic |
9630 | | // storage duration is treated as if x were transformed into an |
9631 | | // access to a corresponding data member of the closure type that |
9632 | | // would have been declared if x were an odr-use of the denoted |
9633 | | // entity. |
9634 | 118k | if (getCurLambda() && isa<ParenExpr>(IDExpr)288 ) { |
9635 | 90 | if (auto *DRE = dyn_cast<DeclRefExpr>(IDExpr->IgnoreParens())) { |
9636 | 90 | if (auto *Var = dyn_cast<VarDecl>(DRE->getDecl())) { |
9637 | 90 | QualType T = getCapturedDeclRefType(Var, DRE->getLocation()); |
9638 | 90 | if (!T.isNull()) |
9639 | 77 | return Context.getLValueReferenceType(T); |
9640 | 90 | } |
9641 | 90 | } |
9642 | 90 | } |
9643 | | |
9644 | 118k | return Context.getReferenceQualifiedType(E); |
9645 | 118k | } |
9646 | | |
9647 | 228k | QualType Sema::BuildDecltypeType(Expr *E, bool AsUnevaluated) { |
9648 | 228k | assert(!E->hasPlaceholderType() && "unexpected placeholder"); |
9649 | | |
9650 | 228k | if (AsUnevaluated && CodeSynthesisContexts.empty()228k && |
9651 | 228k | !E->isInstantiationDependent()65.9k && E->HasSideEffects(Context, false)6.76k ) { |
9652 | | // The expression operand for decltype is in an unevaluated expression |
9653 | | // context, so side effects could result in unintended consequences. |
9654 | | // Exclude instantiation-dependent expressions, because 'decltype' is often |
9655 | | // used to build SFINAE gadgets. |
9656 | 34 | Diag(E->getExprLoc(), diag::warn_side_effects_unevaluated_context); |
9657 | 34 | } |
9658 | 228k | return Context.getDecltypeType(E, getDecltypeForExpr(E)); |
9659 | 228k | } |
9660 | | |
9661 | | static QualType GetEnumUnderlyingType(Sema &S, QualType BaseType, |
9662 | 1.07k | SourceLocation Loc) { |
9663 | 1.07k | assert(BaseType->isEnumeralType()); |
9664 | 1.07k | EnumDecl *ED = BaseType->castAs<EnumType>()->getDecl(); |
9665 | 1.07k | assert(ED && "EnumType has no EnumDecl"); |
9666 | | |
9667 | 1.07k | S.DiagnoseUseOfDecl(ED, Loc); |
9668 | | |
9669 | 1.07k | QualType Underlying = ED->getIntegerType(); |
9670 | 1.07k | assert(!Underlying.isNull()); |
9671 | | |
9672 | 1.07k | return Underlying; |
9673 | 1.07k | } |
9674 | | |
9675 | | QualType Sema::BuiltinEnumUnderlyingType(QualType BaseType, |
9676 | 682 | SourceLocation Loc) { |
9677 | 682 | if (!BaseType->isEnumeralType()) { |
9678 | 3 | Diag(Loc, diag::err_only_enums_have_underlying_types); |
9679 | 3 | return QualType(); |
9680 | 3 | } |
9681 | | |
9682 | | // The enum could be incomplete if we're parsing its definition or |
9683 | | // recovering from an error. |
9684 | 679 | NamedDecl *FwdDecl = nullptr; |
9685 | 679 | if (BaseType->isIncompleteType(&FwdDecl)) { |
9686 | 2 | Diag(Loc, diag::err_underlying_type_of_incomplete_enum) << BaseType; |
9687 | 2 | Diag(FwdDecl->getLocation(), diag::note_forward_declaration) << FwdDecl; |
9688 | 2 | return QualType(); |
9689 | 2 | } |
9690 | | |
9691 | 677 | return GetEnumUnderlyingType(*this, BaseType, Loc); |
9692 | 679 | } |
9693 | | |
9694 | 364 | QualType Sema::BuiltinAddPointer(QualType BaseType, SourceLocation Loc) { |
9695 | 364 | QualType Pointer = BaseType.isReferenceable() || BaseType->isVoidType()16 |
9696 | 364 | ? BuildPointerType(BaseType.getNonReferenceType(), Loc, |
9697 | 364 | DeclarationName()) |
9698 | 364 | : BaseType0 ; |
9699 | | |
9700 | 364 | return Pointer.isNull() ? QualType()0 : Pointer; |
9701 | 364 | } |
9702 | | |
9703 | 2.33k | QualType Sema::BuiltinRemovePointer(QualType BaseType, SourceLocation Loc) { |
9704 | | // We don't want block pointers or ObjectiveC's id type. |
9705 | 2.33k | if (!BaseType->isAnyPointerType() || BaseType->isObjCIdType()98 ) |
9706 | 2.23k | return BaseType; |
9707 | | |
9708 | 97 | return BaseType->getPointeeType(); |
9709 | 2.33k | } |
9710 | | |
9711 | 42.2k | QualType Sema::BuiltinDecay(QualType BaseType, SourceLocation Loc) { |
9712 | 42.2k | QualType Underlying = BaseType.getNonReferenceType(); |
9713 | 42.2k | if (Underlying->isArrayType()) |
9714 | 8 | return Context.getDecayedType(Underlying); |
9715 | | |
9716 | 42.2k | if (Underlying->isFunctionType()) |
9717 | 185 | return BuiltinAddPointer(BaseType, Loc); |
9718 | | |
9719 | 42.0k | SplitQualType Split = Underlying.getSplitUnqualifiedType(); |
9720 | | // std::decay is supposed to produce 'std::remove_cv', but since 'restrict' is |
9721 | | // in the same group of qualifiers as 'const' and 'volatile', we're extending |
9722 | | // '__decay(T)' so that it removes all qualifiers. |
9723 | 42.0k | Split.Quals.removeCVRQualifiers(); |
9724 | 42.0k | return Context.getQualifiedType(Split); |
9725 | 42.2k | } |
9726 | | |
9727 | | QualType Sema::BuiltinAddReference(QualType BaseType, UTTKind UKind, |
9728 | 36.6k | SourceLocation Loc) { |
9729 | 36.6k | assert(LangOpts.CPlusPlus); |
9730 | 36.6k | QualType Reference = |
9731 | 36.6k | BaseType.isReferenceable() |
9732 | 36.6k | ? BuildReferenceType(BaseType, |
9733 | 36.3k | UKind == UnaryTransformType::AddLvalueReference, |
9734 | 36.3k | Loc, DeclarationName()) |
9735 | 36.6k | : BaseType293 ; |
9736 | 36.6k | return Reference.isNull() ? QualType()0 : Reference; |
9737 | 36.6k | } |
9738 | | |
9739 | | QualType Sema::BuiltinRemoveExtent(QualType BaseType, UTTKind UKind, |
9740 | 248 | SourceLocation Loc) { |
9741 | 248 | if (UKind == UnaryTransformType::RemoveAllExtents) |
9742 | 127 | return Context.getBaseElementType(BaseType); |
9743 | | |
9744 | 121 | if (const auto *AT = Context.getAsArrayType(BaseType)) |
9745 | 68 | return AT->getElementType(); |
9746 | | |
9747 | 53 | return BaseType; |
9748 | 121 | } |
9749 | | |
9750 | | QualType Sema::BuiltinRemoveReference(QualType BaseType, UTTKind UKind, |
9751 | 119k | SourceLocation Loc) { |
9752 | 119k | assert(LangOpts.CPlusPlus); |
9753 | 119k | QualType T = BaseType.getNonReferenceType(); |
9754 | 119k | if (UKind == UTTKind::RemoveCVRef && |
9755 | 119k | (10.3k T.isConstQualified()10.3k || T.isVolatileQualified()8.85k )) { |
9756 | 1.49k | Qualifiers Quals; |
9757 | 1.49k | QualType Unqual = Context.getUnqualifiedArrayType(T, Quals); |
9758 | 1.49k | Quals.removeConst(); |
9759 | 1.49k | Quals.removeVolatile(); |
9760 | 1.49k | T = Context.getQualifiedType(Unqual, Quals); |
9761 | 1.49k | } |
9762 | 119k | return T; |
9763 | 119k | } |
9764 | | |
9765 | | QualType Sema::BuiltinChangeCVRQualifiers(QualType BaseType, UTTKind UKind, |
9766 | 27.0k | SourceLocation Loc) { |
9767 | 27.0k | if ((BaseType->isReferenceType() && UKind != UTTKind::RemoveRestrict80 ) || |
9768 | 27.0k | BaseType->isFunctionType()26.9k ) |
9769 | 76 | return BaseType; |
9770 | | |
9771 | 26.9k | Qualifiers Quals; |
9772 | 26.9k | QualType Unqual = Context.getUnqualifiedArrayType(BaseType, Quals); |
9773 | | |
9774 | 26.9k | if (UKind == UTTKind::RemoveConst || UKind == UTTKind::RemoveCV23.3k ) |
9775 | 26.7k | Quals.removeConst(); |
9776 | 26.9k | if (UKind == UTTKind::RemoveVolatile || UKind == UTTKind::RemoveCV26.8k ) |
9777 | 23.2k | Quals.removeVolatile(); |
9778 | 26.9k | if (UKind == UTTKind::RemoveRestrict) |
9779 | 87 | Quals.removeRestrict(); |
9780 | | |
9781 | 26.9k | return Context.getQualifiedType(Unqual, Quals); |
9782 | 27.0k | } |
9783 | | |
9784 | | static QualType ChangeIntegralSignedness(Sema &S, QualType BaseType, |
9785 | | bool IsMakeSigned, |
9786 | 496 | SourceLocation Loc) { |
9787 | 496 | if (BaseType->isEnumeralType()) { |
9788 | 400 | QualType Underlying = GetEnumUnderlyingType(S, BaseType, Loc); |
9789 | 400 | if (auto *BitInt = dyn_cast<BitIntType>(Underlying)) { |
9790 | 0 | unsigned int Bits = BitInt->getNumBits(); |
9791 | 0 | if (Bits > 1) |
9792 | 0 | return S.Context.getBitIntType(!IsMakeSigned, Bits); |
9793 | | |
9794 | 0 | S.Diag(Loc, diag::err_make_signed_integral_only) |
9795 | 0 | << IsMakeSigned << /*_BitInt(1)*/ true << BaseType << 1 << Underlying; |
9796 | 0 | return QualType(); |
9797 | 0 | } |
9798 | 400 | if (Underlying->isBooleanType()) { |
9799 | 16 | S.Diag(Loc, diag::err_make_signed_integral_only) |
9800 | 16 | << IsMakeSigned << /*_BitInt(1)*/ false << BaseType << 1 |
9801 | 16 | << Underlying; |
9802 | 16 | return QualType(); |
9803 | 16 | } |
9804 | 400 | } |
9805 | | |
9806 | 480 | bool Int128Unsupported = !S.Context.getTargetInfo().hasInt128Type(); |
9807 | 480 | std::array<CanQualType *, 6> AllSignedIntegers = { |
9808 | 480 | &S.Context.SignedCharTy, &S.Context.ShortTy, &S.Context.IntTy, |
9809 | 480 | &S.Context.LongTy, &S.Context.LongLongTy, &S.Context.Int128Ty}; |
9810 | 480 | ArrayRef<CanQualType *> AvailableSignedIntegers( |
9811 | 480 | AllSignedIntegers.data(), AllSignedIntegers.size() - Int128Unsupported); |
9812 | 480 | std::array<CanQualType *, 6> AllUnsignedIntegers = { |
9813 | 480 | &S.Context.UnsignedCharTy, &S.Context.UnsignedShortTy, |
9814 | 480 | &S.Context.UnsignedIntTy, &S.Context.UnsignedLongTy, |
9815 | 480 | &S.Context.UnsignedLongLongTy, &S.Context.UnsignedInt128Ty}; |
9816 | 480 | ArrayRef<CanQualType *> AvailableUnsignedIntegers(AllUnsignedIntegers.data(), |
9817 | 480 | AllUnsignedIntegers.size() - |
9818 | 480 | Int128Unsupported); |
9819 | 480 | ArrayRef<CanQualType *> *Consider = |
9820 | 480 | IsMakeSigned ? &AvailableSignedIntegers240 : &AvailableUnsignedIntegers240 ; |
9821 | | |
9822 | 480 | uint64_t BaseSize = S.Context.getTypeSize(BaseType); |
9823 | 480 | auto *Result = |
9824 | 1.66k | llvm::find_if(*Consider, [&S, BaseSize](const CanQual<Type> *T) { |
9825 | 1.66k | return BaseSize == S.Context.getTypeSize(T->getTypePtr()); |
9826 | 1.66k | }); |
9827 | | |
9828 | 480 | assert(Result != Consider->end()); |
9829 | 480 | return QualType((*Result)->getTypePtr(), 0); |
9830 | 480 | } |
9831 | | |
9832 | | QualType Sema::BuiltinChangeSignedness(QualType BaseType, UTTKind UKind, |
9833 | 1.53k | SourceLocation Loc) { |
9834 | 1.53k | bool IsMakeSigned = UKind == UnaryTransformType::MakeSigned; |
9835 | 1.53k | if ((!BaseType->isIntegerType() && !BaseType->isEnumeralType()368 ) || |
9836 | 1.53k | BaseType->isBooleanType()1.43k || |
9837 | 1.53k | (1.42k BaseType->isBitIntType()1.42k && |
9838 | 1.42k | BaseType->getAs<BitIntType>()->getNumBits() < 272 )) { |
9839 | 120 | Diag(Loc, diag::err_make_signed_integral_only) |
9840 | 120 | << IsMakeSigned << BaseType->isBitIntType() << BaseType << 0; |
9841 | 120 | return QualType(); |
9842 | 120 | } |
9843 | | |
9844 | 1.41k | bool IsNonIntIntegral = |
9845 | 1.41k | BaseType->isChar16Type() || BaseType->isChar32Type()1.38k || |
9846 | 1.41k | BaseType->isWideCharType()1.35k || BaseType->isEnumeralType()1.32k ; |
9847 | | |
9848 | 1.41k | QualType Underlying = |
9849 | 1.41k | IsNonIntIntegral |
9850 | 1.41k | ? ChangeIntegralSignedness(*this, BaseType, IsMakeSigned, Loc)496 |
9851 | 1.41k | : IsMakeSigned923 ? Context.getCorrespondingSignedType(BaseType)247 |
9852 | 923 | : Context.getCorrespondingUnsignedType(BaseType)676 ; |
9853 | 1.41k | if (Underlying.isNull()) |
9854 | 16 | return Underlying; |
9855 | 1.40k | return Context.getQualifiedType(Underlying, BaseType.getQualifiers()); |
9856 | 1.41k | } |
9857 | | |
9858 | | QualType Sema::BuildUnaryTransformType(QualType BaseType, UTTKind UKind, |
9859 | 396k | SourceLocation Loc) { |
9860 | 396k | if (BaseType->isDependentType()) |
9861 | 166k | return Context.getUnaryTransformType(BaseType, BaseType, UKind); |
9862 | 230k | QualType Result; |
9863 | 230k | switch (UKind) { |
9864 | 682 | case UnaryTransformType::EnumUnderlyingType: { |
9865 | 682 | Result = BuiltinEnumUnderlyingType(BaseType, Loc); |
9866 | 682 | break; |
9867 | 0 | } |
9868 | 179 | case UnaryTransformType::AddPointer: { |
9869 | 179 | Result = BuiltinAddPointer(BaseType, Loc); |
9870 | 179 | break; |
9871 | 0 | } |
9872 | 2.33k | case UnaryTransformType::RemovePointer: { |
9873 | 2.33k | Result = BuiltinRemovePointer(BaseType, Loc); |
9874 | 2.33k | break; |
9875 | 0 | } |
9876 | 42.2k | case UnaryTransformType::Decay: { |
9877 | 42.2k | Result = BuiltinDecay(BaseType, Loc); |
9878 | 42.2k | break; |
9879 | 0 | } |
9880 | 25.1k | case UnaryTransformType::AddLvalueReference: |
9881 | 36.6k | case UnaryTransformType::AddRvalueReference: { |
9882 | 36.6k | Result = BuiltinAddReference(BaseType, UKind, Loc); |
9883 | 36.6k | break; |
9884 | 25.1k | } |
9885 | 127 | case UnaryTransformType::RemoveAllExtents: |
9886 | 248 | case UnaryTransformType::RemoveExtent: { |
9887 | 248 | Result = BuiltinRemoveExtent(BaseType, UKind, Loc); |
9888 | 248 | break; |
9889 | 127 | } |
9890 | 10.2k | case UnaryTransformType::RemoveCVRef: |
9891 | 119k | case UnaryTransformType::RemoveReference: { |
9892 | 119k | Result = BuiltinRemoveReference(BaseType, UKind, Loc); |
9893 | 119k | break; |
9894 | 10.2k | } |
9895 | 3.62k | case UnaryTransformType::RemoveConst: |
9896 | 26.8k | case UnaryTransformType::RemoveCV: |
9897 | 26.9k | case UnaryTransformType::RemoveRestrict: |
9898 | 27.0k | case UnaryTransformType::RemoveVolatile: { |
9899 | 27.0k | Result = BuiltinChangeCVRQualifiers(BaseType, UKind, Loc); |
9900 | 27.0k | break; |
9901 | 26.9k | } |
9902 | 555 | case UnaryTransformType::MakeSigned: |
9903 | 1.53k | case UnaryTransformType::MakeUnsigned: { |
9904 | 1.53k | Result = BuiltinChangeSignedness(BaseType, UKind, Loc); |
9905 | 1.53k | break; |
9906 | 555 | } |
9907 | 230k | } |
9908 | | |
9909 | 230k | return !Result.isNull() |
9910 | 230k | ? Context.getUnaryTransformType(BaseType, Result, UKind)230k |
9911 | 230k | : Result141 ; |
9912 | 230k | } |
9913 | | |
9914 | 3.98k | QualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { |
9915 | 3.98k | if (!isDependentOrGNUAutoType(T)) { |
9916 | | // FIXME: It isn't entirely clear whether incomplete atomic types |
9917 | | // are allowed or not; for simplicity, ban them for the moment. |
9918 | 3.49k | if (RequireCompleteType(Loc, T, diag::err_atomic_specifier_bad_type, 0)) |
9919 | 1 | return QualType(); |
9920 | | |
9921 | 3.49k | int DisallowedKind = -1; |
9922 | 3.49k | if (T->isArrayType()) |
9923 | 7 | DisallowedKind = 1; |
9924 | 3.48k | else if (T->isFunctionType()) |
9925 | 3 | DisallowedKind = 2; |
9926 | 3.48k | else if (T->isReferenceType()) |
9927 | 2 | DisallowedKind = 3; |
9928 | 3.48k | else if (T->isAtomicType()) |
9929 | 3 | DisallowedKind = 4; |
9930 | 3.47k | else if (T.hasQualifiers()) |
9931 | 3 | DisallowedKind = 5; |
9932 | 3.47k | else if (T->isSizelessType()) |
9933 | 7 | DisallowedKind = 6; |
9934 | 3.46k | else if (!T.isTriviallyCopyableType(Context) && getLangOpts().CPlusPlus5 ) |
9935 | | // Some other non-trivially-copyable type (probably a C++ class) |
9936 | 2 | DisallowedKind = 7; |
9937 | 3.46k | else if (T->isBitIntType()) |
9938 | 3 | DisallowedKind = 8; |
9939 | 3.46k | else if (getLangOpts().C23 && T->isUndeducedAutoType()171 ) |
9940 | | // _Atomic auto is prohibited in C23 |
9941 | 3 | DisallowedKind = 9; |
9942 | | |
9943 | 3.49k | if (DisallowedKind != -1) { |
9944 | 33 | Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; |
9945 | 33 | return QualType(); |
9946 | 33 | } |
9947 | | |
9948 | | // FIXME: Do we need any handling for ARC here? |
9949 | 3.49k | } |
9950 | | |
9951 | | // Build the pointer type. |
9952 | 3.94k | return Context.getAtomicType(T); |
9953 | 3.98k | } |