/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/AST/DeclLookups.h
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1 | | //===- DeclLookups.h - Low-level interface to all names in a DC -*- 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 DeclContext::all_lookups_iterator. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #ifndef LLVM_CLANG_AST_DECLLOOKUPS_H |
14 | | #define LLVM_CLANG_AST_DECLLOOKUPS_H |
15 | | |
16 | | #include "clang/AST/ASTContext.h" |
17 | | #include "clang/AST/DeclBase.h" |
18 | | #include "clang/AST/DeclContextInternals.h" |
19 | | #include "clang/AST/DeclarationName.h" |
20 | | #include "clang/AST/ExternalASTSource.h" |
21 | | #include <cstddef> |
22 | | #include <iterator> |
23 | | |
24 | | namespace clang { |
25 | | |
26 | | /// all_lookups_iterator - An iterator that provides a view over the results |
27 | | /// of looking up every possible name. |
28 | | class DeclContext::all_lookups_iterator { |
29 | | StoredDeclsMap::iterator It, End; |
30 | | |
31 | | public: |
32 | | using value_type = lookup_result; |
33 | | using reference = lookup_result; |
34 | | using pointer = lookup_result; |
35 | | using iterator_category = std::forward_iterator_tag; |
36 | | using difference_type = std::ptrdiff_t; |
37 | | |
38 | 238 | all_lookups_iterator() = default; |
39 | | all_lookups_iterator(StoredDeclsMap::iterator It, |
40 | | StoredDeclsMap::iterator End) |
41 | 3.87k | : It(It), End(End) {} |
42 | | |
43 | 132 | DeclarationName getLookupName() const { return It->first; } |
44 | | |
45 | 13.9k | reference operator*() const { return It->second.getLookupResult(); } |
46 | 0 | pointer operator->() const { return It->second.getLookupResult(); } |
47 | | |
48 | 13.9k | all_lookups_iterator& operator++() { |
49 | | // Filter out using directives. They don't belong as results from name |
50 | | // lookup anyways, except as an implementation detail. Users of the API |
51 | | // should not expect to get them (or worse, rely on it). |
52 | 14.0k | do { |
53 | 14.0k | ++It; |
54 | 14.0k | } while (It != End && |
55 | 14.0k | It->first == DeclarationName::getUsingDirectiveName()12.0k ); |
56 | | |
57 | 13.9k | return *this; |
58 | 13.9k | } |
59 | | |
60 | 0 | all_lookups_iterator operator++(int) { |
61 | 0 | all_lookups_iterator tmp(*this); |
62 | 0 | ++(*this); |
63 | 0 | return tmp; |
64 | 0 | } |
65 | | |
66 | 0 | friend bool operator==(all_lookups_iterator x, all_lookups_iterator y) { |
67 | 0 | return x.It == y.It; |
68 | 0 | } |
69 | | |
70 | 15.9k | friend bool operator!=(all_lookups_iterator x, all_lookups_iterator y) { |
71 | 15.9k | return x.It != y.It; |
72 | 15.9k | } |
73 | | }; |
74 | | |
75 | 2.04k | inline DeclContext::lookups_range DeclContext::lookups() const { |
76 | 2.04k | DeclContext *Primary = const_cast<DeclContext*>(this)->getPrimaryContext(); |
77 | 2.04k | if (Primary->hasExternalVisibleStorage()) |
78 | 112 | getParentASTContext().getExternalSource()->completeVisibleDeclsMap(Primary); |
79 | 2.04k | if (StoredDeclsMap *Map = Primary->buildLookup()) |
80 | 1.92k | return lookups_range(all_lookups_iterator(Map->begin(), Map->end()), |
81 | 1.92k | all_lookups_iterator(Map->end(), Map->end())); |
82 | | |
83 | | // Synthesize an empty range. This requires that two default constructed |
84 | | // versions of these iterators form a valid empty range. |
85 | 118 | return lookups_range(all_lookups_iterator(), all_lookups_iterator()); |
86 | 2.04k | } |
87 | | |
88 | | inline DeclContext::lookups_range |
89 | 12 | DeclContext::noload_lookups(bool PreserveInternalState) const { |
90 | 12 | DeclContext *Primary = const_cast<DeclContext*>(this)->getPrimaryContext(); |
91 | 12 | if (!PreserveInternalState) |
92 | 5 | Primary->loadLazyLocalLexicalLookups(); |
93 | 12 | if (StoredDeclsMap *Map = Primary->getLookupPtr()) |
94 | 11 | return lookups_range(all_lookups_iterator(Map->begin(), Map->end()), |
95 | 11 | all_lookups_iterator(Map->end(), Map->end())); |
96 | | |
97 | | // Synthesize an empty range. This requires that two default constructed |
98 | | // versions of these iterators form a valid empty range. |
99 | 1 | return lookups_range(all_lookups_iterator(), all_lookups_iterator()); |
100 | 12 | } |
101 | | |
102 | | } // namespace clang |
103 | | |
104 | | #endif // LLVM_CLANG_AST_DECLLOOKUPS_H |