1 /* 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. 3 * Copyright (C) 2009, 2010 Google Inc. All rights reserved. 4 * 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. 9 * 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. 14 * 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. 19 * 20 */ 21 22#include "config.h" 23#include "TypeTraits.h" 24 25#include "Assertions.h" 26 27namespace WTF { 28 29COMPILE_ASSERT(IsInteger<bool>::value, WTF_IsInteger_bool_true); 30COMPILE_ASSERT(IsInteger<char>::value, WTF_IsInteger_char_true); 31COMPILE_ASSERT(IsInteger<signed char>::value, WTF_IsInteger_signed_char_true); 32COMPILE_ASSERT(IsInteger<unsigned char>::value, WTF_IsInteger_unsigned_char_true); 33COMPILE_ASSERT(IsInteger<short>::value, WTF_IsInteger_short_true); 34COMPILE_ASSERT(IsInteger<unsigned short>::value, WTF_IsInteger_unsigned_short_true); 35COMPILE_ASSERT(IsInteger<int>::value, WTF_IsInteger_int_true); 36COMPILE_ASSERT(IsInteger<unsigned int>::value, WTF_IsInteger_unsigned_int_true); 37COMPILE_ASSERT(IsInteger<long>::value, WTF_IsInteger_long_true); 38COMPILE_ASSERT(IsInteger<unsigned long>::value, WTF_IsInteger_unsigned_long_true); 39COMPILE_ASSERT(IsInteger<long long>::value, WTF_IsInteger_long_long_true); 40COMPILE_ASSERT(IsInteger<unsigned long long>::value, WTF_IsInteger_unsigned_long_long_true); 41#if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED) 42COMPILE_ASSERT(IsInteger<wchar_t>::value, WTF_IsInteger_wchar_t_true); 43#endif 44COMPILE_ASSERT(!IsInteger<char*>::value, WTF_IsInteger_char_pointer_false); 45COMPILE_ASSERT(!IsInteger<const char*>::value, WTF_IsInteger_const_char_pointer_false); 46COMPILE_ASSERT(!IsInteger<volatile char*>::value, WTF_IsInteger_volatile_char_pointer_false); 47COMPILE_ASSERT(!IsInteger<double>::value, WTF_IsInteger_double_false); 48COMPILE_ASSERT(!IsInteger<float>::value, WTF_IsInteger_float_false); 49 50COMPILE_ASSERT(IsFloatingPoint<float>::value, WTF_IsFloatingPoint_float_true); 51COMPILE_ASSERT(IsFloatingPoint<double>::value, WTF_IsFloatingPoint_double_true); 52COMPILE_ASSERT(IsFloatingPoint<long double>::value, WTF_IsFloatingPoint_long_double_true); 53COMPILE_ASSERT(!IsFloatingPoint<int>::value, WTF_IsFloatingPoint_int_false); 54 55COMPILE_ASSERT(IsPod<bool>::value, WTF_IsPod_bool_true); 56COMPILE_ASSERT(IsPod<char>::value, WTF_IsPod_char_true); 57COMPILE_ASSERT(IsPod<signed char>::value, WTF_IsPod_signed_char_true); 58COMPILE_ASSERT(IsPod<unsigned char>::value, WTF_IsPod_unsigned_char_true); 59COMPILE_ASSERT(IsPod<short>::value, WTF_IsPod_short_true); 60COMPILE_ASSERT(IsPod<unsigned short>::value, WTF_IsPod_unsigned_short_true); 61COMPILE_ASSERT(IsPod<int>::value, WTF_IsPod_int_true); 62COMPILE_ASSERT(IsPod<unsigned int>::value, WTF_IsPod_unsigned_int_true); 63COMPILE_ASSERT(IsPod<long>::value, WTF_IsPod_long_true); 64COMPILE_ASSERT(IsPod<unsigned long>::value, WTF_IsPod_unsigned_long_true); 65COMPILE_ASSERT(IsPod<long long>::value, WTF_IsPod_long_long_true); 66COMPILE_ASSERT(IsPod<unsigned long long>::value, WTF_IsPod_unsigned_long_long_true); 67#if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED) 68COMPILE_ASSERT(IsPod<wchar_t>::value, WTF_IsPod_wchar_t_true); 69#endif 70COMPILE_ASSERT(IsPod<char*>::value, WTF_IsPod_char_pointer_true); 71COMPILE_ASSERT(IsPod<const char*>::value, WTF_IsPod_const_char_pointer_true); 72COMPILE_ASSERT(IsPod<volatile char*>::value, WTF_IsPod_volatile_char_pointer_true); 73COMPILE_ASSERT(IsPod<double>::value, WTF_IsPod_double_true); 74COMPILE_ASSERT(IsPod<long double>::value, WTF_IsPod_long_double_true); 75COMPILE_ASSERT(IsPod<float>::value, WTF_IsPod_float_true); 76COMPILE_ASSERT(!IsPod<IsPod<bool> >::value, WTF_IsPod_struct_false); 77 78enum IsConvertibleToIntegerCheck { }; 79COMPILE_ASSERT(IsConvertibleToInteger<IsConvertibleToIntegerCheck>::value, WTF_IsConvertibleToInteger_enum_true); 80COMPILE_ASSERT(IsConvertibleToInteger<bool>::value, WTF_IsConvertibleToInteger_bool_true); 81COMPILE_ASSERT(IsConvertibleToInteger<char>::value, WTF_IsConvertibleToInteger_char_true); 82COMPILE_ASSERT(IsConvertibleToInteger<signed char>::value, WTF_IsConvertibleToInteger_signed_char_true); 83COMPILE_ASSERT(IsConvertibleToInteger<unsigned char>::value, WTF_IsConvertibleToInteger_unsigned_char_true); 84COMPILE_ASSERT(IsConvertibleToInteger<short>::value, WTF_IsConvertibleToInteger_short_true); 85COMPILE_ASSERT(IsConvertibleToInteger<unsigned short>::value, WTF_IsConvertibleToInteger_unsigned_short_true); 86COMPILE_ASSERT(IsConvertibleToInteger<int>::value, WTF_IsConvertibleToInteger_int_true); 87COMPILE_ASSERT(IsConvertibleToInteger<unsigned int>::value, WTF_IsConvertibleToInteger_unsigned_int_true); 88COMPILE_ASSERT(IsConvertibleToInteger<long>::value, WTF_IsConvertibleToInteger_long_true); 89COMPILE_ASSERT(IsConvertibleToInteger<unsigned long>::value, WTF_IsConvertibleToInteger_unsigned_long_true); 90COMPILE_ASSERT(IsConvertibleToInteger<long long>::value, WTF_IsConvertibleToInteger_long_long_true); 91COMPILE_ASSERT(IsConvertibleToInteger<unsigned long long>::value, WTF_IsConvertibleToInteger_unsigned_long_long_true); 92#if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED) 93COMPILE_ASSERT(IsConvertibleToInteger<wchar_t>::value, WTF_IsConvertibleToInteger_wchar_t_true); 94#endif 95COMPILE_ASSERT(IsConvertibleToInteger<double>::value, WTF_IsConvertibleToInteger_double_true); 96COMPILE_ASSERT(IsConvertibleToInteger<long double>::value, WTF_IsConvertibleToInteger_long_double_true); 97COMPILE_ASSERT(IsConvertibleToInteger<float>::value, WTF_IsConvertibleToInteger_float_true); 98COMPILE_ASSERT(!IsConvertibleToInteger<char*>::value, WTF_IsConvertibleToInteger_char_pointer_false); 99COMPILE_ASSERT(!IsConvertibleToInteger<const char*>::value, WTF_IsConvertibleToInteger_const_char_pointer_false); 100COMPILE_ASSERT(!IsConvertibleToInteger<volatile char*>::value, WTF_IsConvertibleToInteger_volatile_char_pointer_false); 101COMPILE_ASSERT(!IsConvertibleToInteger<IsConvertibleToInteger<bool> >::value, WTF_IsConvertibleToInteger_struct_false); 102 103COMPILE_ASSERT((IsPointerConvertible<int, int>::Value), WTF_IsPointerConvertible_same_type_true); 104COMPILE_ASSERT((!IsPointerConvertible<int, unsigned>::Value), WTF_IsPointerConvertible_int_to_unsigned_false); 105COMPILE_ASSERT((IsPointerConvertible<int, const int>::Value), WTF_IsPointerConvertible_int_to_const_int_true); 106COMPILE_ASSERT((!IsPointerConvertible<const int, int>::Value), WTF_IsPointerConvertible_const_int_to_int_false); 107COMPILE_ASSERT((IsPointerConvertible<int, volatile int>::Value), WTF_IsPointerConvertible_int_to_volatile_int_true); 108 109COMPILE_ASSERT((IsSameType<bool, bool>::value), WTF_IsSameType_bool_true); 110COMPILE_ASSERT((IsSameType<int*, int*>::value), WTF_IsSameType_int_pointer_true); 111COMPILE_ASSERT((!IsSameType<int, int*>::value), WTF_IsSameType_int_int_pointer_false); 112COMPILE_ASSERT((!IsSameType<bool, const bool>::value), WTF_IsSameType_const_change_false); 113COMPILE_ASSERT((!IsSameType<bool, volatile bool>::value), WTF_IsSameType_volatile_change_false); 114 115template <typename T> 116class TestBaseClass { 117}; 118 119class TestDerivedClass : public TestBaseClass<int> { 120}; 121 122COMPILE_ASSERT((IsSubclass<TestDerivedClass, TestBaseClass<int> >::value), WTF_Test_IsSubclass_Derived_From_Base); 123COMPILE_ASSERT((!IsSubclass<TestBaseClass<int>, TestDerivedClass>::value), WTF_Test_IsSubclass_Base_From_Derived); 124COMPILE_ASSERT((IsSubclassOfTemplate<TestDerivedClass, TestBaseClass>::value), WTF_Test_IsSubclassOfTemplate_Base_From_Derived); 125COMPILE_ASSERT((IsSameType<RemoveTemplate<TestBaseClass<int>, TestBaseClass>::Type, int>::value), WTF_Test_RemoveTemplate); 126COMPILE_ASSERT((IsSameType<RemoveTemplate<int, TestBaseClass>::Type, int>::value), WTF_Test_RemoveTemplate_WithoutTemplate); 127COMPILE_ASSERT((IsPointerConvertible<TestDerivedClass, TestBaseClass<int> >::Value), WTF_Test_IsPointerConvertible_Derived_To_Base); 128COMPILE_ASSERT((!IsPointerConvertible<TestBaseClass<int>, TestDerivedClass>::Value), WTF_Test_IsPointerConvertible_Base_To_Derived); 129 130COMPILE_ASSERT((IsSameType<bool, RemoveConst<const bool>::Type>::value), WTF_test_RemoveConst_const_bool); 131COMPILE_ASSERT((!IsSameType<bool, RemoveConst<volatile bool>::Type>::value), WTF_test_RemoveConst_volatile_bool); 132 133COMPILE_ASSERT((IsSameType<bool, RemoveVolatile<bool>::Type>::value), WTF_test_RemoveVolatile_bool); 134COMPILE_ASSERT((!IsSameType<bool, RemoveVolatile<const bool>::Type>::value), WTF_test_RemoveVolatile_const_bool); 135COMPILE_ASSERT((IsSameType<bool, RemoveVolatile<volatile bool>::Type>::value), WTF_test_RemoveVolatile_volatile_bool); 136 137COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<bool>::Type>::value), WTF_test_RemoveConstVolatile_bool); 138COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<const bool>::Type>::value), WTF_test_RemoveConstVolatile_const_bool); 139COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<volatile bool>::Type>::value), WTF_test_RemoveConstVolatile_volatile_bool); 140COMPILE_ASSERT((IsSameType<bool, RemoveConstVolatile<const volatile bool>::Type>::value), WTF_test_RemoveConstVolatile_const_volatile_bool); 141 142COMPILE_ASSERT((IsSameType<int, RemovePointer<int>::Type>::value), WTF_Test_RemovePointer_int); 143COMPILE_ASSERT((IsSameType<int, RemovePointer<int*>::Type>::value), WTF_Test_RemovePointer_int_pointer); 144COMPILE_ASSERT((!IsSameType<int, RemovePointer<int**>::Type>::value), WTF_Test_RemovePointer_int_pointer_pointer); 145 146COMPILE_ASSERT((IsSameType<int, RemoveReference<int>::Type>::value), WTF_Test_RemoveReference_int); 147COMPILE_ASSERT((IsSameType<int, RemoveReference<int&>::Type>::value), WTF_Test_RemoveReference_int_reference); 148 149 150typedef int IntArray[]; 151typedef int IntArraySized[4]; 152 153COMPILE_ASSERT((IsArray<IntArray>::value), WTF_Test_IsArray_int_array); 154COMPILE_ASSERT((IsArray<IntArraySized>::value), WTF_Test_IsArray_int_sized_array); 155 156COMPILE_ASSERT((IsSameType<int, RemoveExtent<IntArray>::Type>::value), WTF_Test_RemoveExtent_int_array); 157COMPILE_ASSERT((IsSameType<int, RemoveExtent<IntArraySized>::Type>::value), WTF_Test_RemoveReference_int_sized_array); 158 159} // namespace WTF 160