gcc/c-lang.c

   1 /* Language-specific hook definitions for C front end.
   2    Copyright (C) 1991 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC 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 2, or (at your option)
   9 any later version.
  10
  11 GNU CC 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.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 #include "config.h"
  22 #include "tree.h"
  23 #include <stdio.h>
  24 #include "input.h"
  25
  26 /* Each of the functions defined here
  27    is an alternative to a function in objc-actions.c.  */
  28
  29 int
  30 lang_decode_option (p)
  31      char *p;
  32 {
  33   return c_decode_option (p);
  34 }
  35
  36 void
  37 lang_init ()
  38 {
  39   /* the beginning of the file is a new line; check for # */
  40   /* With luck, we discover the real source file's name from that
  41      and put it in input_filename.  */
  42   ungetc (check_newline (), finput);
  43 }
  44
  45 void
  46 lang_finish ()
  47 {
  48 }
  49
  50 char *
  51 lang_identify ()
  52 {
  53   return "c";
  54 }
  55
  56 void
  57 print_lang_statistics ()
  58 {
  59 }
  60
  61 /* Used by c-lex.c, but only for objc.  */
  62
  63 tree
  64 lookup_interface (arg)
  65      tree arg;
  66 {
  67   return 0;
  68 }
  69
  70 tree
  71 is_class_name (arg)
  72     tree arg;
  73 {
  74   return 0;
  75 }
  76
  77 void
  78 maybe_objc_check_decl (decl)
  79      tree decl;
  80 {
  81 }
  82
  83 int
  84 maybe_objc_comptypes (lhs, rhs, reflexive)
  85      tree lhs, rhs;
  86      int reflexive;
  87 {
  88   return -1;
  89 }
  90
  91 tree
  92 maybe_objc_method_name (decl)
  93     tree decl;
  94 {
  95   return 0;
  96 }
  97
  98 tree
  99 maybe_building_objc_message_expr ()
 100 {
 101   return 0;
 102 }
 103
 104 int
 105 recognize_objc_keyword ()
 106 {
 107   return 0;
 108 }
 109
 110 tree
 111 build_objc_string (len, str)
 112     int len;
 113     char *str;
 114 {
 115   abort ();
 116   return NULL_TREE;
 117 }
 118
 119 void
 120 GNU_xref_begin ()
 121 {
 122   fatal ("GCC does not yet support XREF");
 123 }
 124
 125 void
 126 GNU_xref_end ()
 127 {
 128   fatal ("GCC does not yet support XREF");
 129 }