gcc/c-lang.c

   1 /* Language-specific hook definitions for C front end.
   2    Copyright (C) 1991, 1995, 1997, 1998,
   3    1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   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 2, or (at your option) any later
  10 version.
  11
  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
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27 #include "tree.h"
  28 #include "c-tree.h"
  29 #include "c-common.h"
  30 #include "ggc.h"
  31 #include "langhooks.h"
  32 #include "langhooks-def.h"
  33 #include "tree-inline.h"
  34 #include "diagnostic.h"
  35 #include "c-pretty-print.h"
  36 #include "c-objc-common.h"
  37
  38 enum c_language_kind c_language = clk_c;
  39
  40 /* Lang hooks common to C and ObjC are declared in c-objc-common.h;
  41    consequently, there should be very few hooks below.  */
  42
  43 #undef LANG_HOOKS_NAME
  44 #define LANG_HOOKS_NAME "GNU C"
  45 #undef LANG_HOOKS_INIT
  46 #define LANG_HOOKS_INIT c_objc_common_init
  47 #undef LANG_HOOKS_TYPES_COMPATIBLE_P
  48 #define LANG_HOOKS_TYPES_COMPATIBLE_P c_types_compatible_p
  49
  50 /* Each front end provides its own lang hook initializer.  */
  51 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  52
  53 /* Tree code classes.  */
  54
  55 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  56
  57 const enum tree_code_class tree_code_type[] = {
  58 #include "tree.def"
  59   tcc_exceptional,
  60 #include "c-common.def"
  61 };
  62 #undef DEFTREECODE
  63
  64 /* Table indexed by tree code giving number of expression
  65    operands beyond the fixed part of the node structure.
  66    Not used for types or decls.  */
  67
  68 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  69
  70 const unsigned char tree_code_length[] = {
  71 #include "tree.def"
  72   0,
  73 #include "c-common.def"
  74 };
  75 #undef DEFTREECODE
  76
  77 /* Names of tree components.
  78    Used for printing out the tree and error messages.  */
  79 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
  80
  81 const char *const tree_code_name[] = {
  82 #include "tree.def"
  83   "@@dummy",
  84 #include "c-common.def"
  85 };
  86 #undef DEFTREECODE
  87
  88 /* Final processing of file-scope data.  The Objective-C version of
  89    this function still does something.  */
  90 void
  91 finish_file (void)
  92 {
  93 }
  94
  95 int
  96 c_types_compatible_p (tree x, tree y)
  97 {
  98     return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
  99 }
 100
 101 #include "gtype-c.h"