tests/synclines.at

   1 # Executing Actions.                               -*- Autotest -*-
   2 # Copyright (C) 2002, 2004, 2005 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 3 of the License, or
   7 # (at your option) 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, see <http://www.gnu.org/licenses/>.
  16
  17 AT_BANNER([[User Actions.]])
  18
  19
  20 # AT_SYNCLINES_COMPILE(FILE)
  21 # --------------------------
  22 # Compile FILE expecting an error, and save in the file stdout the
  23 # normalized output.  Ignore the exit status, since some compilers
  24 # (e.g. c89 on IRIX 6.5) triger warnings on `#error', instead of
  25 # errors.
  26 m4_define([AT_SYNCLINES_COMPILE],
  27 [AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
  28 # In case GCC displays column information, strip it down.
  29 #
  30 #   input.y:4:2: #error "4"    or
  31 #   input.y:4.2: #error "4"    or
  32 #   input.y:4:2: error: #error "4"
  33 # =>
  34 #   input.y:4: #error "4"
  35 #
  36 AT_CHECK([[sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/' stderr]], 0, [stdout])
  37 ])
  38
  39 # AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
  40 # -----------------------------------------
  41 # Check that compiling the parser produced from INPUT cause GCC
  42 # to issue ERROR-MSG.
  43 m4_define([AT_TEST_SYNCLINE],
  44 [AT_SETUP([$1])
  45
  46 # It seems impossible to find a generic scheme to check the location
  47 # of an error.  Even requiring GCC is not sufficient, since for instance
  48 # the version modified by Apple:
  49 #
  50 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
  51 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
  52 # | 19991024 (release) configure:2124: $? = 0
  53 #
  54 # instead of:
  55 #
  56 # | input.y:2: #error "2"
  57 #
  58 # it reports:
  59 #
  60 # | input.y:2: "2"
  61 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
  62
  63 AT_DATA([syncline.c],
  64 [[#error "1"
  65 ]])
  66
  67 AT_SYNCLINES_COMPILE([syncline.c])
  68 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
  69
  70 AT_DATA([[input.y]], [$2])
  71 AT_CHECK([bison -o input.c input.y])
  72 AT_SYNCLINES_COMPILE([input.c])
  73 AT_CHECK([cat stdout], 0, [$3])
  74 AT_CLEANUP
  75 ])
  76
  77
  78 ## --------------------- ##
  79 ## Prologue synch line.  ##
  80 ## --------------------- ##
  81
  82
  83 AT_TEST_SYNCLINE([Prologue synch line],
  84 [[%{
  85 #error "2"
  86 void yyerror (const char *s);
  87 int yylex (void);
  88 %}
  89 %%
  90 exp: '0';
  91 ]],
  92 [input.y:2: #error "2"
  93 ])
  94
  95
  96 ## ------------------- ##
  97 ## %union synch line.  ##
  98 ## ------------------- ##
  99
 100 AT_TEST_SYNCLINE([%union synch line],
 101 [[%union {
 102 #error "2"
 103   char dummy;
 104 }
 105 %{
 106 void yyerror (const char *s);
 107 int yylex (void);
 108 %}
 109 %%
 110 exp: '0';
 111 ]],
 112 [input.y:2: #error "2"
 113 ])
 114
 115
 116 ## ------------------------- ##
 117 ## Postprologue synch line.  ##
 118 ## ------------------------- ##
 119
 120 AT_TEST_SYNCLINE([Postprologue synch line],
 121 [[%{
 122 void yyerror (const char *s);
 123 int yylex (void);
 124 %}
 125 %union
 126 {
 127   int ival;
 128 }
 129 %{
 130 #error "10"
 131 %}
 132 %%
 133 exp: '0';
 134 ]],
 135 [input.y:10: #error "10"
 136 ])
 137
 138
 139 ## ------------------- ##
 140 ## Action synch line.  ##
 141 ## ------------------- ##
 142
 143 AT_TEST_SYNCLINE([Action synch line],
 144 [[%{
 145 void yyerror (const char *s);
 146 int yylex (void);
 147 %}
 148 %%
 149 exp:
 150 {
 151 #error "8"
 152 };
 153 ]],
 154 [input.y:8: #error "8"
 155 ])
 156
 157
 158 ## --------------------- ##
 159 ## Epilogue synch line.  ##
 160 ## --------------------- ##
 161
 162 AT_TEST_SYNCLINE([Epilogue synch line],
 163 [[%{
 164 void yyerror (const char *s);
 165 int yylex (void);
 166 %}
 167 %%
 168 exp: '0';
 169 %%
 170 #error "8"
 171 ]],
 172 [input.y:8: #error "8"
 173 ])