llvm-project/clang-tools-extra/clang-tidy/performance/UnnecessaryValueParamCheck.h

46 lines
1.7 KiB
C++

//===--- UnnecessaryValueParamCheck.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_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H
#include "../ClangTidy.h"
#include "../utils/IncludeInserter.h"
namespace clang {
namespace tidy {
namespace performance {
/// \brief 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);
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
void registerPPCallbacks(CompilerInstance &Compiler) override;
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
private:
void handleMoveFix(const ParmVarDecl &Var, const DeclRefExpr &CopyArgument,
const ASTContext &Context);
std::unique_ptr<utils::IncludeInserter> Inserter;
const utils::IncludeSorter::IncludeStyle IncludeStyle;
};
} // namespace performance
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_VALUE_PARAM_H