llvm-project/clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.h

44 lines
1.4 KiB
C++

//===--- UnusedUsingDeclsCheck.h - clang-tidy--------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_USING_DECLS_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_USING_DECLS_H
#include "../ClangTidy.h"
#include "llvm/ADT/DenseMap.h"
namespace clang {
namespace tidy {
namespace misc {
/// Finds unused using declarations.
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/misc-unused-using-decls.html
class UnusedUsingDeclsCheck : public ClangTidyCheck {
public:
UnusedUsingDeclsCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context) {}
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
void onEndOfTranslationUnit() override;
private:
void removeFromFoundDecls(const Decl *D);
llvm::DenseMap<const Decl*, const UsingDecl*> FoundDecls;
llvm::DenseMap<const Decl*, CharSourceRange> FoundRanges;
};
} // namespace misc
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_USING_DECLS_H