llvm/clang-tools-extra/clang-tidy/bugprone/UnusedReturnValueCheck.cpp

//===--- UnusedReturnValueCheck.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 "UnusedReturnValueCheck.h"
#include "../utils/Matchers.h"
#include "../utils/OptionsUtils.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Basic/OperatorKinds.h"

usingnamespaceclang::ast_matchers;
usingnamespaceclang::ast_matchers::internal;

namespace clang::tidy::bugprone {

namespace {

// Matches functions that are instantiated from a class template member function
// matching InnerMatcher. Functions not instantiated from a class template
// member function are matched directly with InnerMatcher.
AST_MATCHER_P(FunctionDecl, isInstantiatedFrom, Matcher<FunctionDecl>,
              InnerMatcher) { … }

constexpr std::initializer_list<OverloadedOperatorKind>
    AssignmentOverloadedOperatorKinds = …;

AST_MATCHER(FunctionDecl, isAssignmentOverloadedOperator) { … }
} // namespace

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

UnusedReturnValueCheck::UnusedReturnValueCheck(
    llvm::StringRef Name, ClangTidyContext *Context,
    std::vector<StringRef> CheckedFunctions)
    : … { … }

UnusedReturnValueCheck::UnusedReturnValueCheck(
    llvm::StringRef Name, ClangTidyContext *Context,
    std::vector<StringRef> CheckedFunctions,
    std::vector<StringRef> CheckedReturnTypes, bool AllowCastToVoid)
    : … { … }

void UnusedReturnValueCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { … }

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

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

} // namespace clang::tidy::bugprone