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:2.13-14: integer out of range: `$1'
  37 ]])
  38
  39 AT_CLEANUP
  40
  41
  42 ## ------------ ##
  43 ## Invalid @n.  ##
  44 ## ------------ ##
  45
  46 AT_SETUP([Invalid @n])
  47
  48 AT_DATA([input.y],
  49 [[%%
  50 exp: { @$ = @1 ; };
  51 ]])
  52
  53 AT_CHECK([bison input.y], [1], [],
  54 [[input.y:2.13-14: integer out of range: `@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], [], [],
  77 [[input.y:4.6-15: warning: type clash on default action: <bar> != <>
  78 input.y:5.6-8: warning: type clash on default action: <bar> != <>
  79 input.y:6.5: warning: 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_GRAMMAR([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 #if 0
 101 /* These examples test Bison while not stressing C compilers too much.
 102    Many C compilers mishandle backslash-newlines, so this part of the
 103    test is inside "#if 0".  The comment and string are written so that
 104    the "#endif" will be seen regardless of the C compiler bugs that we
 105    know about, namely:
 106
 107      HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
 108      comment.
 109
 110      The Apple Darwin compiler (as of late 2002) mishandles
 111      \\[newline]' within a character constant.
 112
 113    */
 114
 115 /\
 116 * A comment with backslash-newlines in it. %} *\
 117 \
 118 /
 119 /* { Close the above comment, if the C compiler mishandled it.  */
 120
 121 char str[] = "\\
 122 " A string with backslash-newlines in it %{ %} \\
 123 \
 124 "";
 125
 126 char apostrophe = '\'';
 127 #endif
 128
 129 #include <stdio.h>
 130 %}
 131 /* %{ and %} can be here too. */
 132
 133 %{
 134 /* Exercise pre-prologue dependency to %union.  */
 135 typedef int value;
 136 %}
 137
 138 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 139
 140 /* Also exercise %union. */
 141 %union
 142 {
 143   value ival; /* A comment to exercise an old bug. */
 144 };
 145
 146
 147 /* Exercise post-prologue dependency to %union.  */
 148 %{
 149 static YYSTYPE value_as_yystype (value val);
 150
 151 /* Exercise quotes in declarations.  */
 152 char quote[] = "@:>@@:>@,";
 153 %}
 154
 155 %{
 156 static void yyerror (const char *s);
 157 static int yylex (void);
 158 %}
 159
 160 %type <ival> '@<:@'
 161
 162 /* Exercise quotes in strings.  */
 163 %token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x0\0"
 164
 165 %%
 166 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 1.  */
 167 exp: '@<:@' '\1' two '$' '@' '{' oline output
 168   {
 169     /* Exercise quotes in braces.  */
 170     char tmp[] = "@<:@%c@:>@,\n";
 171     printf (tmp, $1);
 172   }
 173 ;
 174
 175 two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
 176 oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
 177 output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
 178 %%
 179 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 2.  */
 180
 181 static YYSTYPE
 182 value_as_yystype (value val)
 183 {
 184   YYSTYPE res;
 185   res.ival = val;
 186   return res;
 187 }
 188
 189 static int
 190 yylex (void)
 191 {
 192   static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
 193 #output "; /* "
 194   */
 195   yylval = value_as_yystype (*input);
 196   return *input++;
 197 }
 198
 199 static void
 200 yyerror (const char *msg)
 201 {
 202   fprintf (stderr, "%s\n", msg);
 203 }
 204 ]])
 205
 206 # Pacify Emacs'font-lock-mode: "
 207
 208 AT_DATA([main.c],
 209 [[typedef int value;
 210 #include "input.h"
 211
 212 int yyparse (void);
 213
 214 int
 215 main (void)
 216 {
 217   return yyparse ();
 218 }
 219 ]])
 220
 221 AT_CHECK([bison -d -v -o input.c input.y])
 222 AT_COMPILE([input.o], [-c input.c])
 223 AT_COMPILE([main.o], [-c main.c])
 224 AT_COMPILE([input], [input.o main.o])
 225 AT_PARSER_CHECK([./input], 0,
 226 [[[@<:@],
 227 ]])
 228
 229 AT_CLEANUP