forked from OSchip/llvm-project
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
//===--- UnnecessaryValueParamCheck.h - clang-tidy---------------*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H
|
|
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H
|
|
|
|
#include "../ClangTidyCheck.h"
|
|
#include "../utils/IncludeInserter.h"
|
|
#include "clang/Analysis/Analyses/ExprMutationAnalyzer.h"
|
|
|
|
namespace clang {
|
|
namespace tidy {
|
|
namespace performance {
|
|
|
|
/// A check that flags value parameters of expensive to copy types that
|
|
/// can safely be converted to const references.
|
|
///
|
|
/// For the user-facing documentation see:
|
|
/// http://clang.llvm.org/extra/clang-tidy/checks/performance-unnecessary-value-param.html
|
|
class UnnecessaryValueParamCheck : public ClangTidyCheck {
|
|
public:
|
|
UnnecessaryValueParamCheck(StringRef Name, ClangTidyContext *Context);
|
|
bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
|
|
return LangOpts.CPlusPlus;
|
|
}
|
|
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
|
|
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
|
|
void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
|
|
Preprocessor *ModuleExpanderPP) override;
|
|
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
|
|
void onEndOfTranslationUnit() override;
|
|
|
|
private:
|
|
void handleMoveFix(const ParmVarDecl &Var, const DeclRefExpr &CopyArgument,
|
|
const ASTContext &Context);
|
|
|
|
llvm::DenseMap<const FunctionDecl *, FunctionParmMutationAnalyzer>
|
|
MutationAnalyzers;
|
|
utils::IncludeInserter Inserter;
|
|
const std::vector<std::string> AllowedTypes;
|
|
};
|
|
|
|
} // namespace performance
|
|
} // namespace tidy
|
|
} // namespace clang
|
|
|
|
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H
|