llvm/clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.cpp

//===--- UnusedUsingDeclsCheck.cpp - clang-tidy----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "UnusedUsingDeclsCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Lex/Lexer.h"

usingnamespaceclang::ast_matchers;

namespace clang::tidy::misc {

namespace {

AST_MATCHER_P(DeducedTemplateSpecializationType, refsToTemplatedDecl,
              clang::ast_matchers::internal::Matcher<NamedDecl>, DeclMatcher) { … }

AST_MATCHER_P(Type, asTagDecl, clang::ast_matchers::internal::Matcher<TagDecl>,
              DeclMatcher) { … }

} // namespace

// A function that helps to tell whether a TargetDecl in a UsingDecl will be
// checked. Only variable, function, function template, class template, class,
// enum declaration and enum constant declaration are considered.
static bool shouldCheckDecl(const Decl *TargetDecl) { … }

UnusedUsingDeclsCheck::UnusedUsingDeclsCheck(StringRef Name,
                                             ClangTidyContext *Context)
    : … { … }

void UnusedUsingDeclsCheck::registerMatchers(MatchFinder *Finder) { … }

void UnusedUsingDeclsCheck::check(const MatchFinder::MatchResult &Result) { … }

void UnusedUsingDeclsCheck::removeFromFoundDecls(const Decl *D) { … }

void UnusedUsingDeclsCheck::onEndOfTranslationUnit() { … }

} // namespace clang::tidy::misc