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
  31 # Transform stderr into something like this:
  32 #
  33 #   input.y:4: #error "4"
  34 #
  35 # In case GCC displays column information, strip it down.
  36 #
  37 #   input.y:4:2: #error "4"    or
  38 #   input.y:4.2: #error "4"    or
  39 #   input.y:4:2: error: #error "4"
  40 # =>
  41 #   input.y:4: #error "4"
  42 #
  43 # It may also issue more context information:
  44 #
  45 #   input.y: In function 'yyparse':
  46 #   input.y:8: #error "8"
  47 # =>
  48 #   input.y:4: #error "8"
  49 #
  50 # The message may include a caret-error:
  51 #
  52 #   input.y:1:2: error: #error "1"
  53 #    #error "1"
  54 #     ^
  55 #
  56 # And possibly distcc adds its bits.
  57 #
  58 #   distcc[33187] ERROR: compile (null) on localhost failed
  59 #   syncline.c:1:2: error: #error "1"
  60 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  61 #
  62 # or even
  63 #
  64 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  65 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  66
  67 AT_CHECK([[perl -p -0777 - stderr <<\EOF
  68   s/^distcc\[\d+\] .*\n//gm;
  69   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
  70   s/^([^:]+:\d+):[^#]*( #error)/$][1:$][2/gm;
  71   s/^[^:]*: In function '[^']+':\n//gm;
  72   s/^\ +#error.*\n\ *\^\n//gm;
  73 EOF
  74 ]],
  75   0, [stdout])
  76 ])
  77
  78 # AT_TEST(TITLE, INPUT, ERROR-MSG)
  79 # --------------------------------
  80 # Check that compiling the parser produced from INPUT cause GCC
  81 # to issue ERROR-MSG.
  82 m4_pushdef([AT_TEST],
  83 [AT_SETUP([$1])
  84 AT_BISON_OPTION_PUSHDEFS
  85 # It seems impossible to find a generic scheme to check the location
  86 # of an error.  Even requiring GCC is not sufficient, since for instance
  87 # the version modified by Apple:
  88 #
  89 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
  90 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
  91 # | 19991024 (release) configure:2124: $? = 0
  92 #
  93 # instead of:
  94 #
  95 # | input.y:2: #error "2"
  96 #
  97 # it reports:
  98 #
  99 # | input.y:2: "2"
 100 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
 101
 102 AT_DATA([syncline.c],
 103 [[#error "1"
 104 int i; // avoids -pedantic warning about an empty translation unit
 105 ]])
 106
 107 AT_SYNCLINES_COMPILE([syncline.c])
 108 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
 109
 110 AT_DATA([[input.y]], [$2])
 111 AT_BISON_CHECK([-o input.c input.y])
 112 AT_SYNCLINES_COMPILE([input.c])
 113 AT_CHECK([cat stdout], 0, [$3])
 114 AT_BISON_OPTION_POPDEFS
 115 AT_CLEANUP
 116 ])
 117
 118
 119 ## ------------------- ##
 120 ## Prologue syncline.  ##
 121 ## ------------------- ##
 122
 123
 124 AT_TEST([Prologue syncline],
 125 [[%{
 126 #error "2"
 127 ]AT_YYERROR_DECLARE_EXTERN[
 128 ]AT_YYLEX_DECLARE_EXTERN[
 129 %}
 130 %%
 131 exp: '0';
 132 %%
 133 ]],
 134 [input.y:2: #error "2"
 135 ])
 136
 137
 138 ## ----------------- ##
 139 ## %union syncline.  ##
 140 ## ----------------- ##
 141
 142 AT_TEST([%union syncline],
 143 [[%union {
 144 #error "2"
 145   char dummy;
 146 }
 147 %{
 148 ]AT_YYERROR_DECLARE_EXTERN[
 149 ]AT_YYLEX_DECLARE_EXTERN[
 150 %}
 151 %%
 152 exp: '0';
 153 %%
 154 ]],
 155 [input.y:2: #error "2"
 156 ])
 157
 158
 159 ## ----------------------- ##
 160 ## Postprologue syncline.  ##
 161 ## ----------------------- ##
 162
 163 AT_TEST([Postprologue syncline],
 164 [[%{
 165 ]AT_YYERROR_DECLARE_EXTERN[
 166 ]AT_YYLEX_DECLARE_EXTERN[
 167 %}
 168 %union
 169 {
 170   int ival;
 171 }
 172 %{
 173 #error "10"
 174 %}
 175 %%
 176 exp: '0';
 177 %%
 178 ]],
 179 [input.y:10: #error "10"
 180 ])
 181
 182
 183 ## ----------------- ##
 184 ## Action syncline.  ##
 185 ## ----------------- ##
 186
 187 AT_TEST([Action syncline],
 188 [[%{
 189 ]AT_YYERROR_DECLARE_EXTERN[
 190 ]AT_YYLEX_DECLARE_EXTERN[
 191 %}
 192 %%
 193 exp:
 194 {
 195 #error "8"
 196 };
 197 ]],
 198 [input.y:8: #error "8"
 199 ])
 200
 201
 202 ## ------------------- ##
 203 ## Epilogue syncline.  ##
 204 ## ------------------- ##
 205
 206 AT_TEST([Epilogue syncline],
 207 [[%{
 208 ]AT_YYERROR_DECLARE_EXTERN[
 209 ]AT_YYLEX_DECLARE_EXTERN[
 210 %}
 211 %%
 212 exp: '0';
 213 %%
 214 #error "8"
 215 ]],
 216 [input.y:8: #error "8"
 217 ])
 218
 219 m4_popdef([AT_TEST])