tests/synclines.at

   1 # Executing Actions.                               -*- Autotest -*-
   2
   3 # Copyright (C) 2002, 2004-2005, 2007, 2009-2012 Free Software
   4 # Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 AT_BANNER([[User Actions.]])
  20
  21
  22 # AT_SYNCLINES_COMPILE(FILE)
  23 # --------------------------
  24 # Compile FILE expecting an error, and save in the file stdout the
  25 # normalized output.  Ignore the exit status, since some compilers
  26 # (e.g. c89 on IRIX 6.5) trigger warnings on `#error', instead of
  27 # errors.
  28 m4_define([AT_SYNCLINES_COMPILE],
  29 [AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
  30 # In case GCC displays column information, strip it down.
  31 #
  32 #   input.y:4:2: #error "4"    or
  33 #   input.y:4.2: #error "4"    or
  34 #   input.y:4:2: error: #error "4"
  35 # =>
  36 #   input.y:4: #error "4"
  37 #
  38 # It may also issue more context information:
  39 #
  40 #   input.y: In function 'yyparse':
  41 #   input.y:8: #error "8"
  42 # =>
  43 #   input.y:4: #error "8"
  44 #
  45 #
  46 # And possibly distcc adds its bits.
  47 #
  48 #   distcc[33187] ERROR: compile (null) on localhost failed
  49 #   syncline.c:1:2: error: #error "1"
  50 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  51 #
  52 # or even
  53 #
  54 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  55 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  56
  57 AT_CHECK([[sed -e '/^distcc\[[0-9]*\] /d'                            \
  58                -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/'      \
  59                -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/'  \
  60                -e "/^[^:]*: In function '[^\']*':$/d"                \
  61             stderr]],
  62          0, [stdout])
  63 ])
  64
  65 # AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
  66 # -----------------------------------------
  67 # Check that compiling the parser produced from INPUT cause GCC
  68 # to issue ERROR-MSG.
  69 m4_define([AT_TEST_SYNCLINE],
  70 [AT_SETUP([$1])
  71
  72 # It seems impossible to find a generic scheme to check the location
  73 # of an error.  Even requiring GCC is not sufficient, since for instance
  74 # the version modified by Apple:
  75 #
  76 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
  77 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
  78 # | 19991024 (release) configure:2124: $? = 0
  79 #
  80 # instead of:
  81 #
  82 # | input.y:2: #error "2"
  83 #
  84 # it reports:
  85 #
  86 # | input.y:2: "2"
  87 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
  88
  89 AT_DATA([syncline.c],
  90 [[#error "1"
  91 int i; // avoids -pedantic warning about an empty translation unit
  92 ]])
  93
  94 AT_SYNCLINES_COMPILE([syncline.c])
  95 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
  96
  97 AT_DATA([[input.y]], [$2])
  98 AT_BISON_CHECK([-o input.c input.y])
  99 AT_SYNCLINES_COMPILE([input.c])
 100 AT_CHECK([cat stdout], 0, [$3])
 101 AT_CLEANUP
 102 ])
 103
 104
 105 ## --------------------- ##
 106 ## Prologue synch line.  ##
 107 ## --------------------- ##
 108
 109
 110 AT_TEST_SYNCLINE([Prologue synch line],
 111 [[%{
 112 #error "2"
 113 void yyerror (const char *s);
 114 int yylex (void);
 115 %}
 116 %%
 117 exp: '0';
 118 ]],
 119 [input.y:2: #error "2"
 120 ])
 121
 122
 123 ## ------------------- ##
 124 ## %union synch line.  ##
 125 ## ------------------- ##
 126
 127 AT_TEST_SYNCLINE([%union synch line],
 128 [[%union {
 129 #error "2"
 130   char dummy;
 131 }
 132 %{
 133 void yyerror (const char *s);
 134 int yylex (void);
 135 %}
 136 %%
 137 exp: '0';
 138 ]],
 139 [input.y:2: #error "2"
 140 ])
 141
 142
 143 ## ------------------------- ##
 144 ## Postprologue synch line.  ##
 145 ## ------------------------- ##
 146
 147 AT_TEST_SYNCLINE([Postprologue synch line],
 148 [[%{
 149 void yyerror (const char *s);
 150 int yylex (void);
 151 %}
 152 %union
 153 {
 154   int ival;
 155 }
 156 %{
 157 #error "10"
 158 %}
 159 %%
 160 exp: '0';
 161 ]],
 162 [input.y:10: #error "10"
 163 ])
 164
 165
 166 ## ------------------- ##
 167 ## Action synch line.  ##
 168 ## ------------------- ##
 169
 170 AT_TEST_SYNCLINE([Action synch line],
 171 [[%{
 172 void yyerror (const char *s);
 173 int yylex (void);
 174 %}
 175 %%
 176 exp:
 177 {
 178 #error "8"
 179 };
 180 ]],
 181 [input.y:8: #error "8"
 182 ])
 183
 184
 185 ## --------------------- ##
 186 ## Epilogue synch line.  ##
 187 ## --------------------- ##
 188
 189 AT_TEST_SYNCLINE([Epilogue synch line],
 190 [[%{
 191 void yyerror (const char *s);
 192 int yylex (void);
 193 %}
 194 %%
 195 exp: '0';
 196 %%
 197 #error "8"
 198 ]],
 199 [input.y:8: #error "8"
 200 ])