Store VECTOR_CST_NELTS directly in tree_node
[official-gcc.git] / gcc / cp / type-utils.h
blob7d6b9160249497114ab4368ab74a5665d1088445
1 /* Utilities for querying and manipulating type trees.
2 Copyright (C) 2013-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_CP_TYPE_UTILS_H
21 #define GCC_CP_TYPE_UTILS_H
23 /* Returns the first tree within T that is directly matched by PRED. T may be a
24 type or PARM_DECL and is incrementally decomposed toward its type-specifier
25 until a match is found. NULL_TREE is returned if PRED does not match any
26 part of T.
28 This is primarily intended for detecting whether T uses `auto' or a concept
29 identifier. Since either of these can only appear as a type-specifier for
30 the declaration in question, only top-level qualifications are traversed;
31 find_type_usage does not look through the whole type. */
33 inline tree
34 find_type_usage (tree t, bool (*pred) (const_tree))
36 enum tree_code code;
37 if (pred (t))
38 return t;
40 code = TREE_CODE (t);
42 if (code == POINTER_TYPE || code == REFERENCE_TYPE
43 || code == PARM_DECL || code == OFFSET_TYPE
44 || code == FUNCTION_TYPE || code == METHOD_TYPE
45 || code == ARRAY_TYPE)
46 return find_type_usage (TREE_TYPE (t), pred);
48 if (TYPE_PTRMEMFUNC_P (t))
49 return find_type_usage
50 (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (t)), pred);
52 return NULL_TREE;
55 #endif // GCC_CP_TYPE_UTILS_H