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) trigger 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 # It may also issue more context information:
  38 #
  39 #   input.y: In function 'yyparse':
  40 #   input.y:8: #error "8"
  41 # =>
  42 #   input.y:4: #error "8"
  43 #
  44 #
  45 # And possibly distcc adds its bits.
  46 #
  47 #   distcc[33187] ERROR: compile (null) on localhost failed
  48 #   syncline.c:1:2: error: #error "1"
  49 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  50 #
  51 # or even
  52 #
  53 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  54 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  55
  56 AT_CHECK([[sed -e '/^distcc\[[0-9]*\] /d'                            \
  57                -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/'      \
  58                -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/'  \
  59                -e "/^[^:]*: In function '[^\']*':$/d"                \
  60             stderr]],
  61          0, [stdout])
  62 ])
  63
  64 # AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
  65 # -----------------------------------------
  66 # Check that compiling the parser produced from INPUT cause GCC
  67 # to issue ERROR-MSG.
  68 m4_define([AT_TEST_SYNCLINE],
  69 [AT_SETUP([$1])
  70
  71 # It seems impossible to find a generic scheme to check the location
  72 # of an error.  Even requiring GCC is not sufficient, since for instance
  73 # the version modified by Apple:
  74 #
  75 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
  76 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
  77 # | 19991024 (release) configure:2124: $? = 0
  78 #
  79 # instead of:
  80 #
  81 # | input.y:2: #error "2"
  82 #
  83 # it reports:
  84 #
  85 # | input.y:2: "2"
  86 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
  87
  88 AT_DATA([syncline.c],
  89 [[#error "1"
  90 ]])
  91
  92 AT_SYNCLINES_COMPILE([syncline.c])
  93 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
  94
  95 AT_DATA([[input.y]], [$2])
  96 AT_BISON_CHECK([-o input.c input.y])
  97 AT_SYNCLINES_COMPILE([input.c])
  98 AT_CHECK([cat stdout], 0, [$3])
  99 AT_CLEANUP
 100 ])
 101
 102
 103 ## --------------------- ##
 104 ## Prologue synch line.  ##
 105 ## --------------------- ##
 106
 107
 108 AT_TEST_SYNCLINE([Prologue synch line],
 109 [[%{
 110 #error "2"
 111 void yyerror (const char *s);
 112 int yylex (void);
 113 %}
 114 %%
 115 exp: '0';
 116 ]],
 117 [input.y:2: #error "2"
 118 ])
 119
 120
 121 ## ------------------- ##
 122 ## %union synch line.  ##
 123 ## ------------------- ##
 124
 125 AT_TEST_SYNCLINE([%union synch line],
 126 [[%union {
 127 #error "2"
 128   char dummy;
 129 }
 130 %{
 131 void yyerror (const char *s);
 132 int yylex (void);
 133 %}
 134 %%
 135 exp: '0';
 136 ]],
 137 [input.y:2: #error "2"
 138 ])
 139
 140
 141 ## ------------------------- ##
 142 ## Postprologue synch line.  ##
 143 ## ------------------------- ##
 144
 145 AT_TEST_SYNCLINE([Postprologue synch line],
 146 [[%{
 147 void yyerror (const char *s);
 148 int yylex (void);
 149 %}
 150 %union
 151 {
 152   int ival;
 153 }
 154 %{
 155 #error "10"
 156 %}
 157 %%
 158 exp: '0';
 159 ]],
 160 [input.y:10: #error "10"
 161 ])
 162
 163
 164 ## ------------------- ##
 165 ## Action synch line.  ##
 166 ## ------------------- ##
 167
 168 AT_TEST_SYNCLINE([Action synch line],
 169 [[%{
 170 void yyerror (const char *s);
 171 int yylex (void);
 172 %}
 173 %%
 174 exp:
 175 {
 176 #error "8"
 177 };
 178 ]],
 179 [input.y:8: #error "8"
 180 ])
 181
 182
 183 ## --------------------- ##
 184 ## Epilogue synch line.  ##
 185 ## --------------------- ##
 186
 187 AT_TEST_SYNCLINE([Epilogue synch line],
 188 [[%{
 189 void yyerror (const char *s);
 190 int yylex (void);
 191 %}
 192 %%
 193 exp: '0';
 194 %%
 195 #error "8"
 196 ]],
 197 [input.y:8: #error "8"
 198 ])