1 //===--- TypeTraits.h - C++ Type Traits Support Enumerations ----*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 ///
10 /// \file
11 /// Defines enumerations for the type traits support.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_CLANG_BASIC_TYPETRAITS_H
16 #define LLVM_CLANG_BASIC_TYPETRAITS_H
17 
18 namespace clang {
19 
20   /// Names for traits that operate specifically on types.
21   enum TypeTrait {
22     UTT_HasNothrowAssign,
23     UTT_HasNothrowMoveAssign,
24     UTT_HasNothrowCopy,
25     UTT_HasNothrowConstructor,
26     UTT_HasTrivialAssign,
27     UTT_HasTrivialMoveAssign,
28     UTT_HasTrivialCopy,
29     UTT_HasTrivialDefaultConstructor,
30     UTT_HasTrivialMoveConstructor,
31     UTT_HasTrivialDestructor,
32     UTT_HasVirtualDestructor,
33     UTT_IsAbstract,
34     UTT_IsAggregate,
35     UTT_IsArithmetic,
36     UTT_IsArray,
37     UTT_IsClass,
38     UTT_IsCompleteType,
39     UTT_IsCompound,
40     UTT_IsConst,
41     UTT_IsDestructible,
42     UTT_IsEmpty,
43     UTT_IsEnum,
44     UTT_IsFinal,
45     UTT_IsFloatingPoint,
46     UTT_IsFunction,
47     UTT_IsFundamental,
48     UTT_IsIntegral,
49     UTT_IsInterfaceClass,
50     UTT_IsLiteral,
51     UTT_IsLvalueReference,
52     UTT_IsMemberFunctionPointer,
53     UTT_IsMemberObjectPointer,
54     UTT_IsMemberPointer,
55     UTT_IsNothrowDestructible,
56     UTT_IsObject,
57     UTT_IsPOD,
58     UTT_IsPointer,
59     UTT_IsPolymorphic,
60     UTT_IsReference,
61     UTT_IsRvalueReference,
62     UTT_IsScalar,
63     UTT_IsSealed,
64     UTT_IsSigned,
65     UTT_IsStandardLayout,
66     UTT_IsTrivial,
67     UTT_IsTriviallyCopyable,
68     UTT_IsTriviallyDestructible,
69     UTT_IsUnion,
70     UTT_IsUnsigned,
71     UTT_IsVoid,
72     UTT_IsVolatile,
73     UTT_HasUniqueObjectRepresentations,
74     UTT_Last = UTT_HasUniqueObjectRepresentations,
75     BTT_IsBaseOf,
76     BTT_IsConvertible,
77     BTT_IsConvertibleTo,
78     BTT_IsSame,
79     BTT_TypeCompatible,
80     BTT_IsAssignable,
81     BTT_IsNothrowAssignable,
82     BTT_IsTriviallyAssignable,
83     BTT_ReferenceBindsToTemporary,
84     BTT_Last = BTT_ReferenceBindsToTemporary,
85     TT_IsConstructible,
86     TT_IsNothrowConstructible,
87     TT_IsTriviallyConstructible
88   };
89 
90   /// Names for the array type traits.
91   enum ArrayTypeTrait {
92     ATT_ArrayRank,
93     ATT_ArrayExtent
94   };
95 
96   /// Names for the "expression or type" traits.
97   enum UnaryExprOrTypeTrait {
98     UETT_SizeOf,
99     /// Used for C's _Alignof and C++'s alignof.
100     /// _Alignof and alignof return the required ABI alignment.
101     UETT_AlignOf,
102     UETT_VecStep,
103     UETT_OpenMPRequiredSimdAlign,
104     /// Used for GCC's __alignof.
105     /// __alignof returns the preferred alignment of a type, the alignment
106     /// clang will attempt to give an object of the type if allowed by ABI.
107     UETT_PreferredAlignOf,
108   };
109 }
110 
111 #endif
112