tests/synclines.at

   1 # Executing Actions.                               -*- Autotest -*-
   2 # Copyright (C) 2002, 2004-2005, 2007, 2009-2010 Free Software
   3 # Foundation, Inc.
   4
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 AT_BANNER([[User Actions.]])
  19
  20
  21 # AT_SYNCLINES_COMPILE(FILE)
  22 # --------------------------
  23 # Compile FILE expecting an error, and save in the file stdout the
  24 # normalized output.  Ignore the exit status, since some compilers
  25 # (e.g. c89 on IRIX 6.5) triger warnings on `#error', instead of
  26 # errors.
  27 m4_define([AT_SYNCLINES_COMPILE],
  28 [AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
  29 # In case GCC displays column information, strip it down.
  30 #
  31 #   input.y:4:2: #error "4"    or
  32 #   input.y:4.2: #error "4"    or
  33 #   input.y:4:2: error: #error "4"
  34 # =>
  35 #   input.y:4: #error "4"
  36 #
  37 AT_CHECK([[sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/' stderr]], 0, [stdout])
  38 ])
  39
  40 # AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
  41 # -----------------------------------------
  42 # Check that compiling the parser produced from INPUT cause GCC
  43 # to issue ERROR-MSG.
  44 m4_define([AT_TEST_SYNCLINE],
  45 [AT_SETUP([$1])
  46
  47 # It seems impossible to find a generic scheme to check the location
  48 # of an error.  Even requiring GCC is not sufficient, since for instance
  49 # the version modified by Apple:
  50 #
  51 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
  52 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
  53 # | 19991024 (release) configure:2124: $? = 0
  54 #
  55 # instead of:
  56 #
  57 # | input.y:2: #error "2"
  58 #
  59 # it reports:
  60 #
  61 # | input.y:2: "2"
  62 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
  63
  64 AT_DATA([syncline.c],
  65 [[#error "1"
  66 ]])
  67
  68 AT_SYNCLINES_COMPILE([syncline.c])
  69 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
  70
  71 AT_DATA([[input.y]], [$2])
  72 AT_BISON_CHECK([-o input.c input.y])
  73 AT_SYNCLINES_COMPILE([input.c])
  74 # GCC 4.5 tells you the function within which #error appears, but
  75 # previous versions of gcc do not.
  76 AT_CHECK([grep -v ': In function ' stdout], 0, [$3])
  77 AT_CLEANUP
  78 ])
  79
  80
  81 ## --------------------- ##
  82 ## Prologue synch line.  ##
  83 ## --------------------- ##
  84
  85
  86 AT_TEST_SYNCLINE([Prologue synch line],
  87 [[%{
  88 #error "2"
  89 void yyerror (const char *s);
  90 int yylex (void);
  91 %}
  92 %%
  93 exp: '0';
  94 ]],
  95 [input.y:2: #error "2"
  96 ])
  97
  98
  99 ## ------------------- ##
 100 ## %union synch line.  ##
 101 ## ------------------- ##
 102
 103 AT_TEST_SYNCLINE([%union synch line],
 104 [[%union {
 105 #error "2"
 106   char dummy;
 107 }
 108 %{
 109 void yyerror (const char *s);
 110 int yylex (void);
 111 %}
 112 %%
 113 exp: '0';
 114 ]],
 115 [input.y:2: #error "2"
 116 ])
 117
 118
 119 ## ------------------------- ##
 120 ## Postprologue synch line.  ##
 121 ## ------------------------- ##
 122
 123 AT_TEST_SYNCLINE([Postprologue synch line],
 124 [[%{
 125 void yyerror (const char *s);
 126 int yylex (void);
 127 %}
 128 %union
 129 {
 130   int ival;
 131 }
 132 %{
 133 #error "10"
 134 %}
 135 %%
 136 exp: '0';
 137 ]],
 138 [input.y:10: #error "10"
 139 ])
 140
 141
 142 ## ------------------- ##
 143 ## Action synch line.  ##
 144 ## ------------------- ##
 145
 146 AT_TEST_SYNCLINE([Action synch line],
 147 [[%{
 148 void yyerror (const char *s);
 149 int yylex (void);
 150 %}
 151 %%
 152 exp:
 153 {
 154 #error "8"
 155 };
 156 ]],
 157 [input.y:8: #error "8"
 158 ])
 159
 160
 161 ## --------------------- ##
 162 ## Epilogue synch line.  ##
 163 ## --------------------- ##
 164
 165 AT_TEST_SYNCLINE([Epilogue synch line],
 166 [[%{
 167 void yyerror (const char *s);
 168 int yylex (void);
 169 %}
 170 %%
 171 exp: '0';
 172 %%
 173 #error "8"
 174 ]],
 175 [input.y:8: #error "8"
 176 ])