1 //===--- LambdaFunctionNameCheck.h - clang-tidy------------------*- 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 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_LAMBDAFUNCTIONNAMECHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_LAMBDAFUNCTIONNAMECHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 
14 namespace clang::tidy::bugprone {
15 
16 /// Detect when __func__ or __FUNCTION__ is being used from within a lambda. In
17 /// that context, those expressions expand to the name of the call operator
18 /// (i.e., `operator()`).
19 ///
20 /// For the user-facing documentation see:
21 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/lambda-function-name.html
22 class LambdaFunctionNameCheck : public ClangTidyCheck {
23 public:
24   struct SourceRangeLessThan {
operatorSourceRangeLessThan25     bool operator()(const SourceRange &L, const SourceRange &R) const {
26       if (L.getBegin() == R.getBegin()) {
27         return L.getEnd() < R.getEnd();
28       }
29       return L.getBegin() < R.getBegin();
30     }
31   };
32   using SourceRangeSet = std::set<SourceRange, SourceRangeLessThan>;
33 
34   LambdaFunctionNameCheck(StringRef Name, ClangTidyContext *Context);
35 
36   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
37   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
38   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
39                            Preprocessor *ModuleExpanderPP) override;
40   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
41 
42 private:
43   SourceRangeSet SuppressMacroExpansions;
44   bool IgnoreMacros;
45 };
46 
47 } // namespace clang::tidy::bugprone
48 
49 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_LAMBDAFUNCTIONNAMECHECK_H
50