1 //===--- UnusedAliasDeclsCheck.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_MISC_UNUSED_ALIAS_DECLS_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_ALIAS_DECLS_H 11 12 #include "../ClangTidyCheck.h" 13 #include "llvm/ADT/DenseMap.h" 14 15 namespace clang { 16 namespace tidy { 17 namespace misc { 18 19 /// Finds unused namespace alias declarations. 20 class UnusedAliasDeclsCheck : public ClangTidyCheck { 21 public: UnusedAliasDeclsCheck(StringRef Name,ClangTidyContext * Context)22 UnusedAliasDeclsCheck(StringRef Name, ClangTidyContext *Context) 23 : ClangTidyCheck(Name, Context) {} isLanguageVersionSupported(const LangOptions & LangOpts)24 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override { 25 return LangOpts.CPlusPlus11; 26 } 27 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 28 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 29 void onEndOfTranslationUnit() override; 30 31 private: 32 llvm::DenseMap<const NamedDecl *, CharSourceRange> FoundDecls; 33 }; 34 35 } // namespace misc 36 } // namespace tidy 37 } // namespace clang 38 39 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_ALIAS_DECLS_H 40