gcc/cp/cp-trait.def

   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 DEFTRAIT_EXPR (HAS_NOTHROW_ASSIGN, "__has_nothrow_assign", 1)
  52 DEFTRAIT_EXPR (HAS_NOTHROW_CONSTRUCTOR, "__has_nothrow_constructor", 1)
  53 DEFTRAIT_EXPR (HAS_NOTHROW_COPY, "__has_nothrow_copy", 1)
  54 DEFTRAIT_EXPR (HAS_TRIVIAL_ASSIGN, "__has_trivial_assign", 1)
  55 DEFTRAIT_EXPR (HAS_TRIVIAL_CONSTRUCTOR, "__has_trivial_constructor", 1)
  56 DEFTRAIT_EXPR (HAS_TRIVIAL_COPY, "__has_trivial_copy", 1)
  57 DEFTRAIT_EXPR (HAS_TRIVIAL_DESTRUCTOR, "__has_trivial_destructor", 1)
  58 DEFTRAIT_EXPR (HAS_UNIQUE_OBJ_REPRESENTATIONS, "__has_unique_object_representations", 1)
  59 DEFTRAIT_EXPR (HAS_VIRTUAL_DESTRUCTOR, "__has_virtual_destructor", 1)
  60 DEFTRAIT_EXPR (IS_ABSTRACT, "__is_abstract", 1)
  61 DEFTRAIT_EXPR (IS_AGGREGATE, "__is_aggregate", 1)
  62 DEFTRAIT_EXPR (IS_ASSIGNABLE, "__is_assignable", 2)
  63 DEFTRAIT_EXPR (IS_BASE_OF, "__is_base_of", 2)
  64 DEFTRAIT_EXPR (IS_CLASS, "__is_class", 1)
  65 DEFTRAIT_EXPR (IS_CONSTRUCTIBLE, "__is_constructible", -1)
  66 DEFTRAIT_EXPR (IS_CONVERTIBLE, "__is_convertible", 2)
  67 DEFTRAIT_EXPR (IS_EMPTY, "__is_empty", 1)
  68 DEFTRAIT_EXPR (IS_ENUM, "__is_enum", 1)
  69 DEFTRAIT_EXPR (IS_FINAL, "__is_final", 1)
  70 DEFTRAIT_EXPR (IS_LAYOUT_COMPATIBLE, "__is_layout_compatible", 2)
  71 DEFTRAIT_EXPR (IS_LITERAL_TYPE, "__is_literal_type", 1)
  72 DEFTRAIT_EXPR (IS_NOTHROW_ASSIGNABLE, "__is_nothrow_assignable", 2)
  73 DEFTRAIT_EXPR (IS_NOTHROW_CONSTRUCTIBLE, "__is_nothrow_constructible", -1)
  74 DEFTRAIT_EXPR (IS_NOTHROW_CONVERTIBLE, "__is_nothrow_convertible", 2)
  75 DEFTRAIT_EXPR (IS_POINTER_INTERCONVERTIBLE_BASE_OF, "__is_pointer_interconvertible_base_of", 2)
  76 DEFTRAIT_EXPR (IS_POD, "__is_pod", 1)
  77 DEFTRAIT_EXPR (IS_POLYMORPHIC, "__is_polymorphic", 1)
  78 DEFTRAIT_EXPR (IS_SAME, "__is_same", 2)
  79 DEFTRAIT_EXPR (IS_STD_LAYOUT, "__is_standard_layout", 1)
  80 DEFTRAIT_EXPR (IS_TRIVIAL, "__is_trivial", 1)
  81 DEFTRAIT_EXPR (IS_TRIVIALLY_ASSIGNABLE, "__is_trivially_assignable", 2)
  82 DEFTRAIT_EXPR (IS_TRIVIALLY_CONSTRUCTIBLE, "__is_trivially_constructible", -1)
  83 DEFTRAIT_EXPR (IS_TRIVIALLY_COPYABLE, "__is_trivially_copyable", 1)
  84 DEFTRAIT_EXPR (IS_UNION, "__is_union", 1)
  85 DEFTRAIT_EXPR (REF_CONSTRUCTS_FROM_TEMPORARY, "__reference_constructs_from_temporary", 2)
  86 DEFTRAIT_EXPR (REF_CONVERTS_FROM_TEMPORARY, "__reference_converts_from_temporary", 2)
  87 /* FIXME Added space to avoid direct usage in GCC 13.  */
  88 DEFTRAIT_EXPR (IS_DEDUCIBLE, "__is_deducible ", 2)
  89
  90 DEFTRAIT_TYPE (REMOVE_CV, "__remove_cv", 1)
  91 DEFTRAIT_TYPE (REMOVE_REFERENCE, "__remove_reference", 1)
  92 DEFTRAIT_TYPE (REMOVE_CVREF, "__remove_cvref", 1)
  93 DEFTRAIT_TYPE (UNDERLYING_TYPE,  "__underlying_type", 1)
  94 DEFTRAIT_TYPE (TYPE_PACK_ELEMENT, "__type_pack_element", -1)
  95
  96 /* These traits yield a type pack, not a type, and are represented by
  97    cp_parser_trait as a special BASES tree instead of a TRAIT_TYPE tree.  */
  98 DEFTRAIT_TYPE (BASES, "__bases", 1)
  99 DEFTRAIT_TYPE (DIRECT_BASES, "__direct_bases", 1)
 100
 101 #ifdef DEFTRAIT_EXPR_DEFAULTED
 102 #undef DEFTRAIT_EXPR
 103 #undef DEFTRAIT_EXPR_DEFAULTED
 104 #endif
 105
 106 #ifdef DEFTRAIT_TYPE_DEFAULTED
 107 #undef DEFTRAIT_TYPE
 108 #undef DEFTRAIT_TYPE_DEFAULTED
 109 #endif