tests/input.at

   1 # Checking the output filenames.                    -*- Autotest -*-
   2 # Copyright (C) 2002 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17 # 02111-1307, USA.
  18
  19 AT_BANNER([[Input Processing.]])
  20
  21 # Mostly test that we are robust to mistakes.
  22
  23
  24 ## ------------ ##
  25 ## Invalid $n.  ##
  26 ## ------------ ##
  27
  28 AT_SETUP([Invalid $n])
  29
  30 AT_DATA([input.y],
  31 [[%%
  32 exp: { $$ = $1 ; };
  33 ]])
  34
  35 AT_CHECK([bison input.y], [1], [],
  36 [[input.y:2.6-14: invalid value: $1
  37 ]])
  38
  39 AT_CLEANUP
  40
  41
  42 ## ------------ ##
  43 ## Invalid @n.  ##
  44 ## ------------ ##
  45
  46 AT_SETUP([Invalid @n])
  47
  48 AT_DATA([input.y],
  49 [[%%
  50 exp: { @$ = @1 ; };
  51 ]])
  52
  53 AT_CHECK([bison input.y], [1], [],
  54 [[input.y:2.6-14: invalid value: @1
  55 ]])
  56
  57 AT_CLEANUP
  58
  59
  60 ## -------------- ##
  61 ## Type Clashes.  ##
  62 ## -------------- ##
  63
  64 AT_SETUP([Type Clashes])
  65
  66 AT_DATA([input.y],
  67 [[%token foo
  68 %type <bar> exp
  69 %%
  70 exp: foo {} foo
  71    | foo
  72    | /* Empty. */
  73    ;
  74 ]])
  75
  76 AT_CHECK([bison input.y], [1], [],
  77 [[input.y:4.4-15: type clash (`bar' `') on default action
  78 input.y:5.4-8: type clash (`bar' `') on default action
  79 input.y:6.4: empty rule for typed nonterminal, and no action
  80 ]])
  81
  82 AT_CLEANUP
  83
  84
  85
  86 ## ----------------------- ##
  87 ## Torturing the Scanner.  ##
  88 ## ----------------------- ##
  89
  90 # Be sure to compile and run, so that the C compiler checks what
  91 # we do.
  92
  93 AT_SETUP([Torturing the Scanner])
  94
  95 AT_DATA([input.y],
  96 [[%{
  97 /* This is seen in GCC: a %{ and %} in middle of a comment. */
  98 const char *foo = "So %{ and %} can be here too.";
  99
 100 #include <stdio.h>
 101 %}
 102 /* %{ and %} can be here too. */
 103
 104 %{
 105 /* Exercise pre-prologue dependency to %union.  */
 106 typedef int value_t;
 107 %}
 108
 109 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 110
 111 /* Also exercise %union. */
 112 %union
 113 {
 114   value_t ival; /* A comment to exercise an old bug. */
 115 };
 116
 117
 118 /* Exercise post-prologue dependency to %union.  */
 119 %{
 120 static YYSTYPE value_t_as_yystype (value_t val);
 121
 122 /* Exercise quotes in declarations.  */
 123 char quote[] = "@:>@@:>@,";
 124 %}
 125
 126 %{
 127 static void yyerror (const char *s);
 128 static int yylex (void);
 129 %}
 130
 131 %type <ival> '1'
 132
 133 /* Exercise quotes in strings.  */
 134 %token FAKE "fake @<:@@:>@,"
 135
 136 %%
 137 /* Exercise M4 quoting: '@:>@@:>@', 1.  */
 138 exp: '1'
 139   {
 140     /* Exercise quotes in braces.  */
 141     char tmp[] = "@<:@%c@:>@,\n";
 142     printf (tmp, $1);
 143   }
 144 ;
 145 %%
 146 /* Exercise M4 quoting: '@:>@@:>@', 2.  */
 147
 148 static YYSTYPE
 149 value_t_as_yystype (value_t val)
 150 {
 151   YYSTYPE res;
 152   res.ival = val;
 153   return res;
 154 }
 155
 156 static int
 157 yylex (void)
 158 {
 159   static const char *input = "1";
 160   yylval = value_t_as_yystype (*input);
 161   return *input++;
 162 }
 163
 164 static void
 165 yyerror (const char *msg)
 166 {
 167   fprintf (stderr, "%s\n", msg);
 168 }
 169 ]])
 170
 171 AT_DATA([main.c],
 172 [[typedef int value_t;
 173 #include "input.h"
 174
 175 int yyparse (void);
 176
 177 int
 178 main (void)
 179 {
 180   return yyparse ();
 181 }
 182 ]])
 183
 184 AT_CHECK([bison input.y -d -v -o input.c])
 185 AT_CHECK([$CC $CFLAGS $CPPFLAGS main.c input.c -o input], 0, [], [ignore])
 186 AT_CHECK([./input], 0,
 187 [[[1],
 188 ]])
 189
 190 AT_CLEANUP