2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3 * Copyright (C) 2009, 2010 Google Inc. All rights reserved.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
23 #include "TypeTraits.h"
25 #include "Assertions.h"
29 COMPILE_ASSERT(IsInteger<bool>::value, WTF_IsInteger_bool_true);
30 COMPILE_ASSERT(IsInteger<char>::value, WTF_IsInteger_char_true);
31 COMPILE_ASSERT(IsInteger<signed char>::value, WTF_IsInteger_signed_char_true);
32 COMPILE_ASSERT(IsInteger<unsigned char>::value, WTF_IsInteger_unsigned_char_true);
33 COMPILE_ASSERT(IsInteger<short>::value, WTF_IsInteger_short_true);
34 COMPILE_ASSERT(IsInteger<unsigned short>::value, WTF_IsInteger_unsigned_short_true);
35 COMPILE_ASSERT(IsInteger<int>::value, WTF_IsInteger_int_true);
36 COMPILE_ASSERT(IsInteger<unsigned int>::value, WTF_IsInteger_unsigned_int_true);
37 COMPILE_ASSERT(IsInteger<long>::value, WTF_IsInteger_long_true);
38 COMPILE_ASSERT(IsInteger<unsigned long>::value, WTF_IsInteger_unsigned_long_true);
39 COMPILE_ASSERT(IsInteger<long long>::value, WTF_IsInteger_long_long_true);
40 COMPILE_ASSERT(IsInteger<unsigned long long>::value, WTF_IsInteger_unsigned_long_long_true);
41 #if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
42 COMPILE_ASSERT(IsInteger<wchar_t>::value, WTF_IsInteger_wchar_t_true);
44 COMPILE_ASSERT(!IsInteger<char*>::value, WTF_IsInteger_char_pointer_false);
45 COMPILE_ASSERT(!IsInteger<const char*>::value, WTF_IsInteger_const_char_pointer_false);
46 COMPILE_ASSERT(!IsInteger<volatile char*>::value, WTF_IsInteger_volatile_char_pointer_false);
47 COMPILE_ASSERT(!IsInteger<double>::value, WTF_IsInteger_double_false);
48 COMPILE_ASSERT(!IsInteger<float>::value, WTF_IsInteger_float_false);
50 COMPILE_ASSERT(IsFloatingPoint<float>::value, WTF_IsFloatingPoint_float_true);
51 COMPILE_ASSERT(IsFloatingPoint<double>::value, WTF_IsFloatingPoint_double_true);
52 COMPILE_ASSERT(IsFloatingPoint<long double>::value, WTF_IsFloatingPoint_long_double_true);
53 COMPILE_ASSERT(!IsFloatingPoint<int>::value, WTF_IsFloatingPoint_int_false);
55 COMPILE_ASSERT(IsPod<bool>::value, WTF_IsPod_bool_true);
56 COMPILE_ASSERT(IsPod<char>::value, WTF_IsPod_char_true);
57 COMPILE_ASSERT(IsPod<signed char>::value, WTF_IsPod_signed_char_true);
58 COMPILE_ASSERT(IsPod<unsigned char>::value, WTF_IsPod_unsigned_char_true);
59 COMPILE_ASSERT(IsPod<short>::value, WTF_IsPod_short_true);
60 COMPILE_ASSERT(IsPod<unsigned short>::value, WTF_IsPod_unsigned_short_true);
61 COMPILE_ASSERT(IsPod<int>::value, WTF_IsPod_int_true);
62 COMPILE_ASSERT(IsPod<unsigned int>::value, WTF_IsPod_unsigned_int_true);
63 COMPILE_ASSERT(IsPod<long>::value, WTF_IsPod_long_true);
64 COMPILE_ASSERT(IsPod<unsigned long>::value, WTF_IsPod_unsigned_long_true);
65 COMPILE_ASSERT(IsPod<long long>::value, WTF_IsPod_long_long_true);
66 COMPILE_ASSERT(IsPod<unsigned long long>::value, WTF_IsPod_unsigned_long_long_true);
67 #if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
68 COMPILE_ASSERT(IsPod<wchar_t>::value, WTF_IsPod_wchar_t_true);
70 COMPILE_ASSERT(IsPod<char*>::value, WTF_IsPod_char_pointer_true);
71 COMPILE_ASSERT(IsPod<const char*>::value, WTF_IsPod_const_char_pointer_true);
72 COMPILE_ASSERT(IsPod<volatile char*>::value, WTF_IsPod_volatile_char_pointer_true);
73 COMPILE_ASSERT(IsPod<double>::value, WTF_IsPod_double_true);
74 COMPILE_ASSERT(IsPod<long double>::value, WTF_IsPod_long_double_true);
75 COMPILE_ASSERT(IsPod<float>::value, WTF_IsPod_float_true);
76 COMPILE_ASSERT(!IsPod<IsPod<bool> >::value, WTF_IsPod_struct_false);
78 enum IsConvertibleToIntegerCheck { };
79 COMPILE_ASSERT(IsConvertibleToInteger<IsConvertibleToIntegerCheck>::value, WTF_IsConvertibleToInteger_enum_true);
80 COMPILE_ASSERT(IsConvertibleToInteger<bool>::value, WTF_IsConvertibleToInteger_bool_true);
81 COMPILE_ASSERT(IsConvertibleToInteger<char>::value, WTF_IsConvertibleToInteger_char_true);
82 COMPILE_ASSERT(IsConvertibleToInteger<signed char>::value, WTF_IsConvertibleToInteger_signed_char_true);
83 COMPILE_ASSERT(IsConvertibleToInteger<unsigned char>::value, WTF_IsConvertibleToInteger_unsigned_char_true);
84 COMPILE_ASSERT(IsConvertibleToInteger<short>::value, WTF_IsConvertibleToInteger_short_true);
85 COMPILE_ASSERT(IsConvertibleToInteger<unsigned short>::value, WTF_IsConvertibleToInteger_unsigned_short_true);
86 COMPILE_ASSERT(IsConvertibleToInteger<int>::value, WTF_IsConvertibleToInteger_int_true);
87 COMPILE_ASSERT(IsConvertibleToInteger<unsigned int>::value, WTF_IsConvertibleToInteger_unsigned_int_true);
88 COMPILE_ASSERT(IsConvertibleToInteger<long>::value, WTF_IsConvertibleToInteger_long_true);
89 COMPILE_ASSERT(IsConvertibleToInteger<unsigned long>::value, WTF_IsConvertibleToInteger_unsigned_long_true);
90 COMPILE_ASSERT(IsConvertibleToInteger<long long>::value, WTF_IsConvertibleToInteger_long_long_true);
91 COMPILE_ASSERT(IsConvertibleToInteger<unsigned long long>::value, WTF_IsConvertibleToInteger_unsigned_long_long_true);
92 #if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
93 COMPILE_ASSERT(IsConvertibleToInteger<wchar_t>::value, WTF_IsConvertibleToInteger_wchar_t_true);
95 COMPILE_ASSERT(IsConvertibleToInteger<double>::value, WTF_IsConvertibleToInteger_double_true);
96 COMPILE_ASSERT(IsConvertibleToInteger<long double>::value, WTF_IsConvertibleToInteger_long_double_true);
97 COMPILE_ASSERT(IsConvertibleToInteger<float>::value, WTF_IsConvertibleToInteger_float_true);
98 COMPILE_ASSERT(!IsConvertibleToInteger<char*>::value, WTF_IsConvertibleToInteger_char_pointer_false);
99 COMPILE_ASSERT(!IsConvertibleToInteger<const char*>::value, WTF_IsConvertibleToInteger_const_char_pointer_false);
100 COMPILE_ASSERT(!IsConvertibleToInteger<volatile char*>::value, WTF_IsConvertibleToInteger_volatile_char_pointer_false);
101 COMPILE_ASSERT(!IsConvertibleToInteger<IsConvertibleToInteger<bool> >::value, WTF_IsConvertibleToInteger_struct_false);
103 COMPILE_ASSERT((IsSameType<bool, bool>::value), WTF_IsSameType_bool_true);
104 COMPILE_ASSERT((IsSameType<int*, int*>::value), WTF_IsSameType_int_pointer_true);
105 COMPILE_ASSERT((!IsSameType<int, int*>::value), WTF_IsSameType_int_int_pointer_false);
106 COMPILE_ASSERT((!IsSameType<bool, const bool>::value), WTF_IsSameType_const_change_false);
107 COMPILE_ASSERT((!IsSameType<bool, volatile bool>::value), WTF_IsSameType_volatile_change_false);
109 template <typename T>
110 class TestBaseClass {
113 class TestDerivedClass : public TestBaseClass<int> {
116 COMPILE_ASSERT((IsSubclass<TestDerivedClass, TestBaseClass<int> >::value), WTF_Test_IsSubclass_Derived_From_Base);
117 COMPILE_ASSERT((!IsSubclass<TestBaseClass<int>, TestDerivedClass>::value), WTF_Test_IsSubclass_Base_From_Derived);
118 COMPILE_ASSERT((IsSubclassOfTemplate<TestDerivedClass, TestBaseClass>::value), WTF_Test_IsSubclassOfTemplate_Base_From_Derived);
119 COMPILE_ASSERT((IsSameType<RemoveTemplate<TestBaseClass<int>, TestBaseClass>::Type, int>::value), WTF_Test_RemoveTemplate);
120 COMPILE_ASSERT((IsSameType<RemoveTemplate<int, TestBaseClass>::Type, int>::value), WTF_Test_RemoveTemplate_WithoutTemplate);
123 COMPILE_ASSERT((IsSameType<bool, RemoveConst<const bool>::Type>::value), WTF_test_RemoveConst_const_bool);
124 COMPILE_ASSERT((!IsSameType<bool, RemoveConst<volatile bool>::Type>::value), WTF_test_RemoveConst_volatile_bool);
126 COMPILE_ASSERT((IsSameType<bool, RemoveVolatile<bool>::Type>::value), WTF_test_RemoveVolatile_bool);
127 COMPILE_ASSERT((!IsSameType<bool, RemoveVolatile<const bool>::Type>::value), WTF_test_RemoveVolatile_const_bool);
128 COMPILE_ASSERT((IsSameType<bool, RemoveVolatile<volatile bool>::Type>::value), WTF_test_RemoveVolatile_volatile_bool);
130 COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<bool>::Type>::value), WTF_test_RemoveConstVolatile_bool);
131 COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<const bool>::Type>::value), WTF_test_RemoveConstVolatile_const_bool);
132 COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<volatile bool>::Type>::value), WTF_test_RemoveConstVolatile_volatile_bool);
133 COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<const volatile bool>::Type>::value), WTF_test_RemoveConstVolatile_const_volatile_bool);
135 COMPILE_ASSERT((IsSameType<int, RemovePointer<int>::Type>::value), WTF_Test_RemovePointer_int);
136 COMPILE_ASSERT((IsSameType<int, RemovePointer<int*>::Type>::value), WTF_Test_RemovePointer_int_pointer);
137 COMPILE_ASSERT((!IsSameType<int, RemovePointer<int**>::Type>::value), WTF_Test_RemovePointer_int_pointer_pointer);
139 COMPILE_ASSERT((IsSameType<int, RemoveReference<int>::Type>::value), WTF_Test_RemoveReference_int);
140 COMPILE_ASSERT((IsSameType<int, RemoveReference<int&>::Type>::value), WTF_Test_RemoveReference_int_reference);