1 /* Some code common to C and ObjC front ends.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007,
3 2009 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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/>. */
23 #include "coretypes.h"
27 #include "insn-config.h"
28 #include "integrate.h"
31 #include "c-pretty-print.h"
35 #include "diagnostic.h"
36 #include "tree-inline.h"
39 #include "langhooks.h"
40 #include "tree-mudflap.h"
42 #include "c-objc-common.h"
44 static bool c_tree_printer (pretty_printer *, text_info *, const char *,
45 int, bool, bool, bool);
48 c_missing_noreturn_ok_p (tree decl)
50 /* A missing noreturn is not ok for freestanding implementations and
51 ok for the `main' function in hosted implementations. */
52 return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl));
55 /* Called from check_global_declarations. */
58 c_warn_unused_global_decl (const_tree decl)
60 if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
62 if (DECL_IN_SYSTEM_HEADER (decl))
68 /* Initialization common to C and Objective-C front ends. */
70 c_objc_common_init (void)
72 c_init_decl_processing ();
74 if (c_common_init () == false)
77 /* These were not defined in the Objective-C front end, but I'm
78 putting them here anyway. The diagnostic format decoder might
79 want an enhanced ObjC implementation. */
80 diagnostic_format_decoder (global_dc) = &c_tree_printer;
85 /* Called during diagnostic message formatting process to print a
86 source-level entity onto BUFFER. The meaning of the format specifiers
89 %E: an identifier or expression,
90 %F: a function declaration,
93 These format specifiers form a subset of the format specifiers set used
95 Please notice when called, the `%' part was already skipped by the
96 diagnostic machinery. */
98 c_tree_printer (pretty_printer *pp, text_info *text, const char *spec,
99 int precision, bool wide, bool set_locus, bool hash)
101 tree t = va_arg (*text->args_ptr, tree);
103 c_pretty_printer *cpp = (c_pretty_printer *) pp;
104 pp->padding = pp_none;
106 if (precision != 0 || wide || hash)
109 if (set_locus && text->locus)
110 *text->locus = DECL_SOURCE_LOCATION (t);
115 if (DECL_DEBUG_EXPR_IS_FROM (t) && DECL_DEBUG_EXPR (t))
117 t = DECL_DEBUG_EXPR (t);
120 pp_c_expression (cpp, t);
129 pp_identifier (cpp, lang_hooks.decl_printable_name (t, 2));
135 gcc_assert (TYPE_P (t));
136 name = TYPE_NAME (t);
138 if (name && TREE_CODE (name) == TYPE_DECL)
140 if (DECL_NAME (name))
141 pp_identifier (cpp, lang_hooks.decl_printable_name (name, 2));
154 if (TREE_CODE (t) == IDENTIFIER_NODE)
155 pp_identifier (cpp, IDENTIFIER_POINTER (t));
157 pp_expression (cpp, t);
164 pp_string (cpp, _("({anonymous})"));
168 /* In C and ObjC, all decls have "C" linkage. */
170 has_c_linkage (const_tree decl ATTRIBUTE_UNUSED)
176 c_initialize_diagnostics (diagnostic_context *context)
178 pretty_printer *base = context->printer;
179 c_pretty_printer *pp = XNEW (c_pretty_printer);
180 memcpy (pp_base (pp), base, sizeof (pretty_printer));
181 pp_c_pretty_printer_init (pp);
182 context->printer = (pretty_printer *) pp;
184 /* It is safe to free this object because it was previously XNEW()'d. */
189 c_types_compatible_p (tree x, tree y)
191 return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
194 /* Determine if the type is a vla type for the backend. */
197 c_vla_unspec_p (tree x, tree fn ATTRIBUTE_UNUSED)
199 return c_vla_type_p (x);