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Issue 1499933002: Remove DISALLOW_EVIL_CONSTRUCTORS (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // This file contains macros and macro-like constructs (e.g., templates) that 5 // This file contains macros and macro-like constructs (e.g., templates) that
6 // are commonly used throughout Chromium source. (It may also contain things 6 // are commonly used throughout Chromium source. (It may also contain things
7 // that are closely related to things that are commonly used that belong in this 7 // that are closely related to things that are commonly used that belong in this
8 // file.) 8 // file.)
9 9
10 #ifndef BASE_MACROS_H_ 10 #ifndef BASE_MACROS_H_
11 #define BASE_MACROS_H_ 11 #define BASE_MACROS_H_
12 12
13 #include <stddef.h> // For size_t. 13 #include <stddef.h> // For size_t.
14 #include <string.h> // For memcpy. 14 #include <string.h> // For memcpy.
15 15
16 // Put this in the declarations for a class to be uncopyable. 16 // Put this in the declarations for a class to be uncopyable.
17 #define DISALLOW_COPY(TypeName) \ 17 #define DISALLOW_COPY(TypeName) \
18 TypeName(const TypeName&) = delete 18 TypeName(const TypeName&) = delete
19 19
20 // Put this in the declarations for a class to be unassignable. 20 // Put this in the declarations for a class to be unassignable.
21 #define DISALLOW_ASSIGN(TypeName) \ 21 #define DISALLOW_ASSIGN(TypeName) \
22 void operator=(const TypeName&) = delete 22 void operator=(const TypeName&) = delete
23 23
24 // A macro to disallow the copy constructor and operator= functions 24 // A macro to disallow the copy constructor and operator= functions
25 // This should be used in the private: declarations for a class 25 // This should be used in the private: declarations for a class
26 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \ 26 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \
27 TypeName(const TypeName&); \ 27 TypeName(const TypeName&); \
28 void operator=(const TypeName&) 28 void operator=(const TypeName&)
29 29
30 // An older, deprecated, politically incorrect name for the above.
31 // NOTE: The usage of this macro was banned from our code base, but some
32 // third_party libraries are yet using it.
33 // TODO(tfarina): Figure out how to fix the usage of this macro in the
34 // third_party libraries and get rid of it.
35 #define DISALLOW_EVIL_CONSTRUCTORS(TypeName) DISALLOW_COPY_AND_ASSIGN(TypeName)
36
37 // A macro to disallow all the implicit constructors, namely the 30 // A macro to disallow all the implicit constructors, namely the
38 // default constructor, copy constructor and operator= functions. 31 // default constructor, copy constructor and operator= functions.
39 // 32 //
40 // This should be used in the private: declarations for a class 33 // This should be used in the private: declarations for a class
41 // that wants to prevent anyone from instantiating it. This is 34 // that wants to prevent anyone from instantiating it. This is
42 // especially useful for classes containing only static methods. 35 // especially useful for classes containing only static methods.
43 #define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \ 36 #define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
44 TypeName() = delete; \ 37 TypeName() = delete; \
45 DISALLOW_COPY_AND_ASSIGN(TypeName) 38 DISALLOW_COPY_AND_ASSIGN(TypeName)
46 39
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149 142
150 // Use these to declare and define a static local variable (static T;) so that 143 // Use these to declare and define a static local variable (static T;) so that
151 // it is leaked so that its destructors are not called at exit. If you need 144 // it is leaked so that its destructors are not called at exit. If you need
152 // thread-safe initialization, use base/lazy_instance.h instead. 145 // thread-safe initialization, use base/lazy_instance.h instead.
153 #define CR_DEFINE_STATIC_LOCAL(type, name, arguments) \ 146 #define CR_DEFINE_STATIC_LOCAL(type, name, arguments) \
154 static type& name = *new type arguments 147 static type& name = *new type arguments
155 148
156 } // base 149 } // base
157 150
158 #endif // BASE_MACROS_H_ 151 #endif // BASE_MACROS_H_
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