clang-tools-extra/clang-tidy/performance/NoexceptMoveConstructorCheck.h

//===--- NoexceptMoveConstructorCheck.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_NOEXCEPTMOVECONSTRUCTORCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_NOEXCEPTMOVECONSTRUCTORCHECK_H

#include "../ClangTidy.h"

namespace clang {
namespace tidy {
namespace performance {

/// The check flags user-defined move constructors and assignment operators not
/// marked with `noexcept` or marked with `noexcept(expr)` where `expr`
/// evaluates to `false` (but is not a `false` literal itself).
///
/// Move constructors of all the types used with STL containers, for example,
/// need to be declared `noexcept`. Otherwise STL will choose copy constructors
/// instead. The same is valid for move assignment operations.
class NoexceptMoveConstructorCheck : public ClangTidyCheck {
public:
  NoexceptMoveConstructorCheck(StringRef Name, ClangTidyContext *Context)
      : ClangTidyCheck(Name, Context) {}
  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
};

} // namespace performance
} // namespace tidy
} // namespace clang

#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_NOEXCEPTMOVECONSTRUCTORCHECK_H