/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Lex/PPConditionalDirectiveRecord.h
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1 | | //===--- PPConditionalDirectiveRecord.h - Preprocessing Directives-*- C++ -*-=// |
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 defines the PPConditionalDirectiveRecord class, which maintains |
10 | | // a record of conditional directive regions. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | #ifndef LLVM_CLANG_LEX_PPCONDITIONALDIRECTIVERECORD_H |
14 | | #define LLVM_CLANG_LEX_PPCONDITIONALDIRECTIVERECORD_H |
15 | | |
16 | | #include "clang/Basic/SourceLocation.h" |
17 | | #include "clang/Lex/PPCallbacks.h" |
18 | | #include "llvm/ADT/SmallVector.h" |
19 | | #include <vector> |
20 | | |
21 | | namespace clang { |
22 | | |
23 | | /// Records preprocessor conditional directive regions and allows |
24 | | /// querying in which region source locations belong to. |
25 | | class PPConditionalDirectiveRecord : public PPCallbacks { |
26 | | SourceManager &SourceMgr; |
27 | | |
28 | | SmallVector<SourceLocation, 6> CondDirectiveStack; |
29 | | |
30 | | class CondDirectiveLoc { |
31 | | SourceLocation Loc; |
32 | | SourceLocation RegionLoc; |
33 | | |
34 | | public: |
35 | | CondDirectiveLoc(SourceLocation Loc, SourceLocation RegionLoc) |
36 | 101 | : Loc(Loc), RegionLoc(RegionLoc) {} |
37 | | |
38 | 1.69k | SourceLocation getLoc() const { return Loc; } |
39 | 66 | SourceLocation getRegionLoc() const { return RegionLoc; } |
40 | | |
41 | | class Comp { |
42 | | SourceManager &SM; |
43 | | public: |
44 | 1.27k | explicit Comp(SourceManager &SM) : SM(SM) {} |
45 | | bool operator()(const CondDirectiveLoc &LHS, |
46 | 0 | const CondDirectiveLoc &RHS) { |
47 | 0 | return SM.isBeforeInTranslationUnit(LHS.getLoc(), RHS.getLoc()); |
48 | 0 | } |
49 | 1.17k | bool operator()(const CondDirectiveLoc &LHS, SourceLocation RHS) { |
50 | 1.17k | return SM.isBeforeInTranslationUnit(LHS.getLoc(), RHS); |
51 | 1.17k | } |
52 | 52 | bool operator()(SourceLocation LHS, const CondDirectiveLoc &RHS) { |
53 | 52 | return SM.isBeforeInTranslationUnit(LHS, RHS.getLoc()); |
54 | 52 | } |
55 | | }; |
56 | | }; |
57 | | |
58 | | typedef std::vector<CondDirectiveLoc> CondDirectiveLocsTy; |
59 | | /// The locations of conditional directives in source order. |
60 | | CondDirectiveLocsTy CondDirectiveLocs; |
61 | | |
62 | | void addCondDirectiveLoc(CondDirectiveLoc DirLoc); |
63 | | |
64 | | public: |
65 | | /// Construct a new preprocessing record. |
66 | | explicit PPConditionalDirectiveRecord(SourceManager &SM); |
67 | | |
68 | | size_t getTotalMemory() const; |
69 | | |
70 | 11 | SourceManager &getSourceManager() const { return SourceMgr; } |
71 | | |
72 | | /// Returns true if the given range intersects with a conditional |
73 | | /// directive. if a \#if/\#endif block is fully contained within the range, |
74 | | /// this function will return false. |
75 | | bool rangeIntersectsConditionalDirective(SourceRange Range) const; |
76 | | |
77 | | /// Returns true if the given locations are in different regions, |
78 | | /// separated by conditional directive blocks. |
79 | | bool areInDifferentConditionalDirectiveRegion(SourceLocation LHS, |
80 | 58 | SourceLocation RHS) const { |
81 | 58 | return findConditionalDirectiveRegionLoc(LHS) != |
82 | 58 | findConditionalDirectiveRegionLoc(RHS); |
83 | 58 | } |
84 | | |
85 | | SourceLocation findConditionalDirectiveRegionLoc(SourceLocation Loc) const; |
86 | | |
87 | | private: |
88 | | void If(SourceLocation Loc, SourceRange ConditionRange, |
89 | | ConditionValueKind ConditionValue) override; |
90 | | void Elif(SourceLocation Loc, SourceRange ConditionRange, |
91 | | ConditionValueKind ConditionValue, SourceLocation IfLoc) override; |
92 | | void Ifdef(SourceLocation Loc, const Token &MacroNameTok, |
93 | | const MacroDefinition &MD) override; |
94 | | void Ifndef(SourceLocation Loc, const Token &MacroNameTok, |
95 | | const MacroDefinition &MD) override; |
96 | | void Elifdef(SourceLocation Loc, const Token &MacroNameTok, |
97 | | const MacroDefinition &MD) override; |
98 | | void Elifdef(SourceLocation Loc, SourceRange ConditionRange, |
99 | | SourceLocation IfLoc) override; |
100 | | void Elifndef(SourceLocation Loc, const Token &MacroNameTok, |
101 | | const MacroDefinition &MD) override; |
102 | | void Elifndef(SourceLocation Loc, SourceRange ConditionRange, |
103 | | SourceLocation IfLoc) override; |
104 | | void Else(SourceLocation Loc, SourceLocation IfLoc) override; |
105 | | void Endif(SourceLocation Loc, SourceLocation IfLoc) override; |
106 | | }; |
107 | | |
108 | | } // end namespace clang |
109 | | |
110 | | #endif // LLVM_CLANG_LEX_PPCONDITIONALDIRECTIVERECORD_H |