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 { 15 namespace tidy { 16 namespace bugprone { 17 18 /// Detect when __func__ or __FUNCTION__ is being used from within a lambda. In 19 /// that context, those expressions expand to the name of the call operator 20 /// (i.e., `operator()`). 21 /// 22 /// For the user-facing documentation see: 23 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone-lambda-function-name.html 24 class LambdaFunctionNameCheck : public ClangTidyCheck { 25 public: 26 struct SourceRangeLessThan { operatorSourceRangeLessThan27 bool operator()(const SourceRange &L, const SourceRange &R) const { 28 if (L.getBegin() == R.getBegin()) { 29 return L.getEnd() < R.getEnd(); 30 } 31 return L.getBegin() < R.getBegin(); 32 } 33 }; 34 using SourceRangeSet = std::set<SourceRange, SourceRangeLessThan>; 35 LambdaFunctionNameCheck(StringRef Name,ClangTidyContext * Context)36 LambdaFunctionNameCheck(StringRef Name, ClangTidyContext *Context) 37 : ClangTidyCheck(Name, Context) {} 38 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 39 void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP, 40 Preprocessor *ModuleExpanderPP) override; 41 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 42 43 private: 44 SourceRangeSet SuppressMacroExpansions; 45 }; 46 47 } // namespace bugprone 48 } // namespace tidy 49 } // namespace clang 50 51 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_LAMBDAFUNCTIONNAMECHECK_H 52