base/basictypes.h

// Copyright 2010 The Goma Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.


#ifndef DEVTOOLS_GOMA_BASE_BASICTYPES_H_
#define DEVTOOLS_GOMA_BASE_BASICTYPES_H_

// Put this in the private: declarations for a class to be uncopyable.
#define DISALLOW_COPY(TypeName) \
  TypeName(const TypeName&) = delete;

// Put this in the private: declarations for a class to be unassignable.
#define DISALLOW_ASSIGN(TypeName) \
  void operator=(const TypeName&) = delete;

// A macro to disallow the copy constructor and operator= functions
// This should be used in the private: declarations for a class
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
  TypeName(const TypeName&) = delete;               \
  void operator=(const TypeName&) = delete;

// A macro to disallow all the implicit constructors, namely the
// default constructor, copy constructor and operator= functions.
//
// This should be used in the private: declarations for a class
// that wants to prevent anyone from instantiating it. This is
// especially useful for classes containing only static methods.
#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
  TypeName() = delete;                                    \
  DISALLOW_COPY_AND_ASSIGN(TypeName);

#endif  // DEVTOOLS_GOMA_BASE_BASICTYPES_H_