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1 : : /* This file contains the definitions for C++-specific built-in traits.
2 : :
3 : : Copyright The GNU Toolchain Authors.
4 : :
5 : : This file is part of GCC.
6 : :
7 : : GCC is free software; you can redistribute it and/or modify
8 : : it under the terms of the GNU General Public License as published by
9 : : the Free Software Foundation; either version 3, or (at your option)
10 : : any later version.
11 : :
12 : : GCC is distributed in the hope that it will be useful,
13 : : but WITHOUT ANY WARRANTY; without even the implied warranty of
14 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 : : GNU General Public License for more details.
16 : :
17 : : You should have received a copy of the GNU General Public License
18 : : along with GCC; see the file COPYING3. If not see
19 : : <http://www.gnu.org/licenses/>. */
20 : :
21 : : /* Add a DEFTRAIT_EXPR (CODE, NAME, N) line to this file to define an
22 : : expression-yielding built-in trait that has internal code name CODE, is
23 : : spelled as NAME and takes N type arguments (where N is either 1, 2, or
24 : : the special value -1 which denotes that it takes at least one argument).
25 : : Such traits are represented as TRAIT_EXPR tree whose TRAIT_EXPR_KIND is
26 : : CPTK_CODE. Define the behavior of the trait in finish_trait_expr. */
27 : :
28 : : /* Add a DEFTRAIT_TYPE (CODE, NAME, N) line to this file to define a
29 : : type-yielding built-in trait as described above. Such traits are
30 : : generally represented as a TRAIT_TYPE tree whose TRAIT_TYPE_KIND is
31 : : CPTK_CODE (exceptions are BASES and DIRECT_BASES below). Define the
32 : : behavior of the trait in finish_trait_type. */
33 : :
34 : : #ifdef DEFTRAIT
35 : : #define DEFTRAIT_EXPR(CODE, NAME, ARITY) DEFTRAIT(tcc_expression, CODE, NAME, ARITY)
36 : : #define DEFTRAIT_TYPE(CODE, NAME, ARITY) DEFTRAIT(tcc_type, CODE, NAME, ARITY)
37 : : #define DEFTRAIT_EXPR_DEFAULTED
38 : : #define DEFTRAIT_TYPE_DEFAULTED
39 : : #endif
40 : :
41 : : #ifndef DEFTRAIT_EXPR
42 : : #define DEFTRAIT_EXPR(CODE, NAME, ARITY)
43 : : #define DEFTRAIT_EXPR_DEFAULTED
44 : : #endif
45 : :
46 : : #ifndef DEFTRAIT_TYPE
47 : : #define DEFTRAIT_TYPE(CODE, NAME, ARITY)
48 : : #define DEFTRAIT_TYPE_DEFAULTED
49 : : #endif
50 : :
51 : 4 : DEFTRAIT_EXPR (HAS_NOTHROW_ASSIGN, "__has_nothrow_assign", 1)
52 : 4 : DEFTRAIT_EXPR (HAS_NOTHROW_CONSTRUCTOR, "__has_nothrow_constructor", 1)
53 : 4 : DEFTRAIT_EXPR (HAS_NOTHROW_COPY, "__has_nothrow_copy", 1)
54 : 4 : DEFTRAIT_EXPR (HAS_TRIVIAL_ASSIGN, "__has_trivial_assign", 1)
55 : 4 : DEFTRAIT_EXPR (HAS_TRIVIAL_CONSTRUCTOR, "__has_trivial_constructor", 1)
56 : 4 : DEFTRAIT_EXPR (HAS_TRIVIAL_COPY, "__has_trivial_copy", 1)
57 : 4 : DEFTRAIT_EXPR (HAS_TRIVIAL_DESTRUCTOR, "__has_trivial_destructor", 1)
58 : 0 : DEFTRAIT_EXPR (HAS_UNIQUE_OBJ_REPRESENTATIONS, "__has_unique_object_representations", 1)
59 : 4 : DEFTRAIT_EXPR (HAS_VIRTUAL_DESTRUCTOR, "__has_virtual_destructor", 1)
60 : 4 : DEFTRAIT_EXPR (IS_ABSTRACT, "__is_abstract", 1)
61 : 0 : DEFTRAIT_EXPR (IS_AGGREGATE, "__is_aggregate", 1)
62 : 0 : DEFTRAIT_EXPR (IS_ARRAY, "__is_array", 1)
63 : 0 : DEFTRAIT_EXPR (IS_ASSIGNABLE, "__is_assignable", 2)
64 : 4 : DEFTRAIT_EXPR (IS_BASE_OF, "__is_base_of", 2)
65 : 0 : DEFTRAIT_EXPR (IS_BOUNDED_ARRAY, "__is_bounded_array", 1)
66 : 4 : DEFTRAIT_EXPR (IS_CLASS, "__is_class", 1)
67 : 5 : DEFTRAIT_EXPR (IS_CONSTRUCTIBLE, "__is_constructible", -1)
68 : 0 : DEFTRAIT_EXPR (IS_CONVERTIBLE, "__is_convertible", 2)
69 : 12 : DEFTRAIT_EXPR (IS_EMPTY, "__is_empty", 1)
70 : 4 : DEFTRAIT_EXPR (IS_ENUM, "__is_enum", 1)
71 : 0 : DEFTRAIT_EXPR (IS_FINAL, "__is_final", 1)
72 : 0 : DEFTRAIT_EXPR (IS_FUNCTION, "__is_function", 1)
73 : 0 : DEFTRAIT_EXPR (IS_LAYOUT_COMPATIBLE, "__is_layout_compatible", 2)
74 : 0 : DEFTRAIT_EXPR (IS_LITERAL_TYPE, "__is_literal_type", 1)
75 : 0 : DEFTRAIT_EXPR (IS_MEMBER_FUNCTION_POINTER, "__is_member_function_pointer", 1)
76 : 0 : DEFTRAIT_EXPR (IS_MEMBER_OBJECT_POINTER, "__is_member_object_pointer", 1)
77 : 0 : DEFTRAIT_EXPR (IS_MEMBER_POINTER, "__is_member_pointer", 1)
78 : 0 : DEFTRAIT_EXPR (IS_NOTHROW_ASSIGNABLE, "__is_nothrow_assignable", 2)
79 : 0 : DEFTRAIT_EXPR (IS_NOTHROW_CONSTRUCTIBLE, "__is_nothrow_constructible", -1)
80 : 0 : DEFTRAIT_EXPR (IS_NOTHROW_CONVERTIBLE, "__is_nothrow_convertible", 2)
81 : 0 : DEFTRAIT_EXPR (IS_OBJECT, "__is_object", 1)
82 : 0 : DEFTRAIT_EXPR (IS_POINTER_INTERCONVERTIBLE_BASE_OF, "__is_pointer_interconvertible_base_of", 2)
83 : 4 : DEFTRAIT_EXPR (IS_POD, "__is_pod", 1)
84 : 4 : DEFTRAIT_EXPR (IS_POLYMORPHIC, "__is_polymorphic", 1)
85 : 0 : DEFTRAIT_EXPR (IS_REFERENCE, "__is_reference", 1)
86 : 31 : DEFTRAIT_EXPR (IS_SAME, "__is_same", 2)
87 : 0 : DEFTRAIT_EXPR (IS_SCOPED_ENUM, "__is_scoped_enum", 1)
88 : 0 : DEFTRAIT_EXPR (IS_STD_LAYOUT, "__is_standard_layout", 1)
89 : 0 : DEFTRAIT_EXPR (IS_TRIVIAL, "__is_trivial", 1)
90 : 0 : DEFTRAIT_EXPR (IS_TRIVIALLY_ASSIGNABLE, "__is_trivially_assignable", 2)
91 : 0 : DEFTRAIT_EXPR (IS_TRIVIALLY_CONSTRUCTIBLE, "__is_trivially_constructible", -1)
92 : 0 : DEFTRAIT_EXPR (IS_TRIVIALLY_COPYABLE, "__is_trivially_copyable", 1)
93 : 4 : DEFTRAIT_EXPR (IS_UNION, "__is_union", 1)
94 : 0 : DEFTRAIT_EXPR (REF_CONSTRUCTS_FROM_TEMPORARY, "__reference_constructs_from_temporary", 2)
95 : 0 : DEFTRAIT_EXPR (REF_CONVERTS_FROM_TEMPORARY, "__reference_converts_from_temporary", 2)
96 : 0 : DEFTRAIT_TYPE (REMOVE_CV, "__remove_cv", 1)
97 : 0 : DEFTRAIT_TYPE (REMOVE_CVREF, "__remove_cvref", 1)
98 : 0 : DEFTRAIT_TYPE (REMOVE_POINTER, "__remove_pointer", 1)
99 : 0 : DEFTRAIT_TYPE (REMOVE_REFERENCE, "__remove_reference", 1)
100 : 7 : DEFTRAIT_TYPE (TYPE_PACK_ELEMENT, "__type_pack_element", -1)
101 : 58 : DEFTRAIT_TYPE (UNDERLYING_TYPE, "__underlying_type", 1)
102 : :
103 : : /* FIXME Added space to avoid direct usage in GCC 13. */
104 : 18 : DEFTRAIT_EXPR (IS_DEDUCIBLE, "__is_deducible ", 2)
105 : :
106 : : /* These traits yield a type pack, not a type, and are represented by
107 : : cp_parser_trait as a special BASES tree instead of a TRAIT_TYPE tree. */
108 : 0 : DEFTRAIT_TYPE (BASES, "__bases", 1)
109 : 0 : DEFTRAIT_TYPE (DIRECT_BASES, "__direct_bases", 1)
110 : :
111 : : #ifdef DEFTRAIT_EXPR_DEFAULTED
112 : : #undef DEFTRAIT_EXPR
113 : : #undef DEFTRAIT_EXPR_DEFAULTED
114 : : #endif
115 : :
116 : : #ifdef DEFTRAIT_TYPE_DEFAULTED
117 : : #undef DEFTRAIT_TYPE
118 : : #undef DEFTRAIT_TYPE_DEFAULTED
119 : : #endif
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