1 /* Language independent support for printing types for GDB, the GNU debugger.
2 Copyright (C) 1986-2018 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program 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 of the License, or
9 (at your option) any later version.
11 This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "gdb_obstack.h"
26 struct typedef_hash_table
;
27 struct ext_lang_type_printers
;
29 struct print_offset_data
31 /* The offset to be applied to bitpos when PRINT_OFFSETS is true.
32 This is needed for when we are printing nested structs and want
33 to make sure that the printed offset for each field carries over
34 the offset of the outter struct. */
35 unsigned int offset_bitpos
= 0;
37 /* END_BITPOS is the one-past-the-end bit position of the previous
38 field (where we expect the current field to be if there is no
40 unsigned int end_bitpos
= 0;
43 struct type_print_options
45 /* True means that no special printing flags should apply. */
48 /* True means print methods in a class. */
49 unsigned int print_methods
: 1;
51 /* True means print typedefs in a class. */
52 unsigned int print_typedefs
: 1;
54 /* True means to print offsets, a la 'pahole'. */
55 unsigned int print_offsets
: 1;
57 /* The number of nested type definitions to print. -1 == all. */
58 int print_nested_type_limit
;
60 /* If not NULL, a local typedef hash table used when printing a
62 typedef_hash_table
*local_typedefs
;
64 /* If not NULL, a global typedef hash table used when printing a
66 typedef_hash_table
*global_typedefs
;
68 /* The list of type printers associated with the global typedef
69 table. This is intentionally opaque. */
70 struct ext_lang_type_printers
*global_printers
;
73 extern const struct type_print_options type_print_raw_options
;
75 /* A hash table holding typedef_field objects. This is more
76 complicated than an ordinary hash because it must also track the
77 lifetime of some -- but not all -- of the contained objects. */
79 class typedef_hash_table
83 /* Create a new typedef-lookup hash table. */
84 typedef_hash_table ();
86 ~typedef_hash_table ();
88 /* Copy a typedef hash. */
89 typedef_hash_table (const typedef_hash_table
&);
91 typedef_hash_table
&operator= (const typedef_hash_table
&) = delete;
93 /* Add typedefs from T to the hash table TABLE. */
94 void recursively_update (struct type
*);
96 /* Add template parameters from T to the typedef hash TABLE. */
97 void add_template_parameters (struct type
*t
);
99 /* Look up the type T in the typedef hash tables contained in FLAGS.
100 The local table is searched first, then the global table (either
101 table can be NULL, in which case it is skipped). If T is in a
102 table, return its short (class-relative) typedef name. Otherwise
104 static const char *find_typedef (const struct type_print_options
*flags
,
109 static const char *find_global_typedef (const struct type_print_options
*flags
,
113 /* The actual hash table. */
116 /* Storage for typedef_field objects that must be synthesized. */
117 auto_obstack m_storage
;
121 void print_type_scalar (struct type
* type
, LONGEST
, struct ui_file
*);
123 void c_type_print_varspec_suffix (struct type
*, struct ui_file
*, int,
124 int, int, const struct type_print_options
*);
126 void c_type_print_args (struct type
*, struct ui_file
*, int, enum language
,
127 const struct type_print_options
*);
129 /* Print <unknown return type> to stream STREAM. */
131 void type_print_unknown_return_type (struct ui_file
*stream
);
133 /* Throw an error indicating that the user tried to use a symbol that
134 has unknown type. SYM_PRINT_NAME is the name of the symbol, to be
135 included in the error message. */
136 extern void error_unknown_type (const char *sym_print_name
);
138 extern void val_print_not_allocated (struct ui_file
*stream
);
140 extern void val_print_not_associated (struct ui_file
*stream
);