1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/* Some code common to C and ObjC front ends.
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007,
2009, 2010 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tree.h"
#include "c-tree.h"
#include "intl.h"
#include "c-family/c-pretty-print.h"
#include "flags.h"
#include "diagnostic.h"
#include "tree-pretty-print.h"
#include "langhooks.h"
#include "c-objc-common.h"
static bool c_tree_printer (pretty_printer *, text_info *, const char *,
int, bool, bool, bool);
bool
c_missing_noreturn_ok_p (tree decl)
{
/* A missing noreturn is not ok for freestanding implementations and
ok for the `main' function in hosted implementations. */
return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl));
}
/* Called from check_global_declarations. */
bool
c_warn_unused_global_decl (const_tree decl)
{
if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
return false;
if (DECL_IN_SYSTEM_HEADER (decl))
return false;
return true;
}
/* Initialization common to C and Objective-C front ends. */
bool
c_objc_common_init (void)
{
c_init_decl_processing ();
if (c_common_init () == false)
return false;
/* These were not defined in the Objective-C front end, but I'm
putting them here anyway. The diagnostic format decoder might
want an enhanced ObjC implementation. */
diagnostic_format_decoder (global_dc) = &c_tree_printer;
return true;
}
/* Called during diagnostic message formatting process to print a
source-level entity onto BUFFER. The meaning of the format specifiers
is as follows:
%D: a general decl,
%E: an identifier or expression,
%F: a function declaration,
%T: a type.
%V: a list of type qualifiers from a tree.
%v: an explicit list of type qualifiers
%#v: an explicit list of type qualifiers of a function type.
Please notice when called, the `%' part was already skipped by the
diagnostic machinery. */
static bool
c_tree_printer (pretty_printer *pp, text_info *text, const char *spec,
int precision, bool wide, bool set_locus, bool hash)
{
tree t = NULL_TREE;
tree name;
c_pretty_printer *cpp = (c_pretty_printer *) pp;
pp->padding = pp_none;
if (precision != 0 || wide)
return false;
if (*spec == 'K')
{
percent_K_format (text);
return true;
}
if (*spec != 'v')
{
t = va_arg (*text->args_ptr, tree);
if (set_locus && text->locus)
*text->locus = DECL_SOURCE_LOCATION (t);
}
switch (*spec)
{
case 'D':
if (DECL_DEBUG_EXPR_IS_FROM (t) && DECL_DEBUG_EXPR (t))
{
t = DECL_DEBUG_EXPR (t);
if (!DECL_P (t))
{
pp_c_expression (cpp, t);
return true;
}
}
/* FALLTHRU */
case 'F':
if (DECL_NAME (t))
{
pp_identifier (cpp, lang_hooks.decl_printable_name (t, 2));
return true;
}
break;
case 'T':
gcc_assert (TYPE_P (t));
name = TYPE_NAME (t);
if (name && TREE_CODE (name) == TYPE_DECL)
{
if (DECL_NAME (name))
pp_identifier (cpp, lang_hooks.decl_printable_name (name, 2));
else
pp_type_id (cpp, t);
return true;
}
else
{
pp_type_id (cpp, t);
return true;
}
break;
case 'E':
if (TREE_CODE (t) == IDENTIFIER_NODE)
pp_identifier (cpp, IDENTIFIER_POINTER (t));
else
pp_expression (cpp, t);
return true;
case 'V':
pp_c_type_qualifier_list (cpp, t);
return true;
case 'v':
pp_c_cv_qualifiers (cpp, va_arg (*text->args_ptr, int), hash);
return true;
default:
return false;
}
pp_string (cpp, _("({anonymous})"));
return true;
}
/* In C and ObjC, all decls have "C" linkage. */
bool
has_c_linkage (const_tree decl ATTRIBUTE_UNUSED)
{
return true;
}
void
c_initialize_diagnostics (diagnostic_context *context)
{
pretty_printer *base;
c_pretty_printer *pp;
c_common_initialize_diagnostics (context);
base = context->printer;
pp = XNEW (c_pretty_printer);
memcpy (pp_base (pp), base, sizeof (pretty_printer));
pp_c_pretty_printer_init (pp);
context->printer = (pretty_printer *) pp;
/* It is safe to free this object because it was previously XNEW()'d. */
XDELETE (base);
}
int
c_types_compatible_p (tree x, tree y)
{
return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
}
/* Determine if the type is a vla type for the backend. */
bool
c_vla_unspec_p (tree x, tree fn ATTRIBUTE_UNUSED)
{
return c_vla_type_p (x);
}
|
