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1//===----------------------------------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSEDALIASDECLSCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSEDALIASDECLSCHECK_H11 12#include "../ClangTidyCheck.h"13#include "llvm/ADT/DenseMap.h"14 15namespace clang::tidy::misc {16 17/// Finds unused namespace alias declarations.18class UnusedAliasDeclsCheck : public ClangTidyCheck {19public:20 UnusedAliasDeclsCheck(StringRef Name, ClangTidyContext *Context)21 : ClangTidyCheck(Name, Context) {}22 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {23 return LangOpts.CPlusPlus11;24 }25 void registerMatchers(ast_matchers::MatchFinder *Finder) override;26 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;27 void onEndOfTranslationUnit() override;28 29private:30 llvm::DenseMap<const NamedDecl *, CharSourceRange> FoundDecls;31};32 33} // namespace clang::tidy::misc34 35#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSEDALIASDECLSCHECK_H36