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 $1], [ignore], [], [stderr])
  30
  31 # Transform stderr into something like this:
  32 #
  33 #   input.y:4: #error "4"
  34 #
  35 # In case GCC displays column information, strip it down.
  36 #
  37 #   input.y:4:2: #error "4"    or
  38 #   input.y:4.2: #error "4"    or
  39 #   input.y:4:2: error: #error "4"
  40 # =>
  41 #   input.y:4: #error "4"
  42 #
  43 # It may also issue more context information:
  44 #
  45 #   input.y: In function 'yyparse':
  46 #   input.y:8: #error "8"
  47 # =>
  48 #   input.y:4: #error "8"
  49 #
  50 # The message may include a caret-error (indented by GCC 4.8,
  51 # not by clang 3.2):
  52 #
  53 #   input.y:1:2: error: #error "1"
  54 #    #error "1"
  55 #     ^
  56 #
  57 # And possibly distcc adds its bits.
  58 #
  59 #   distcc[33187] ERROR: compile (null) on localhost failed
  60 #   syncline.c:1:2: error: #error "1"
  61 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  62 #
  63 # or even
  64 #
  65 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  66 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  67 #
  68 # The compiler might end by the number of messages issued (Clang 3.2):
  69 #
  70 #    syncline.c:1:2: error: "1"
  71 #    #error "1"
  72 #     ^
  73 #    1 error generated.
  74 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
  75   # 1. Remove useless lines.
  76
  77   # distcc clutter.
  78   s/^distcc\[\d+\] .*\n//gm;
  79   # Function context.
  80   s/^[^:]*: In function '[^']+':\n//gm;
  81   # Caret error.
  82   s/^ *#error.*\n *\^\n//gm;
  83   # Number of errors.
  84   s/^1 error generated\.\n//gm;
  85
  86   # 2. Normalize the lines we kept.
  87
  88   # Remove column.
  89   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
  90   # Map all combinations of "error: " and "#error: " to "#error ".
  91   s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
  92 EOF
  93 ]],
  94   0, [stdout])
  95 ])
  96
  97 # AT_TEST(TITLE, INPUT, ERROR-MSG)
  98 # --------------------------------
  99 # Check that compiling the parser produced from INPUT cause GCC
 100 # to issue ERROR-MSG.
 101 m4_pushdef([AT_TEST],
 102 [AT_SETUP([$1])
 103 AT_BISON_OPTION_PUSHDEFS
 104 # It seems impossible to find a generic scheme to check the location
 105 # of an error.  Even requiring GCC is not sufficient, since for instance
 106 # the version modified by Apple:
 107 #
 108 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
 109 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
 110 # | 19991024 (release) configure:2124: $? = 0
 111 #
 112 # instead of:
 113 #
 114 # | input.y:2: #error "2"
 115 #
 116 # it reports:
 117 #
 118 # | input.y:2: "2"
 119 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
 120
 121 AT_DATA([syncline.c],
 122 [[#error "1"
 123 int i; // avoids -pedantic warning about an empty translation unit
 124 ]])
 125
 126 AT_SYNCLINES_COMPILE([syncline.c])
 127 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
 128
 129 AT_DATA([[input.y]], [$2])
 130 AT_BISON_CHECK([-o input.c input.y])
 131 AT_SYNCLINES_COMPILE([input.c])
 132 AT_CHECK([cat stdout], 0, [$3])
 133 AT_BISON_OPTION_POPDEFS
 134 AT_CLEANUP
 135 ])
 136
 137
 138 ## ------------------- ##
 139 ## Prologue syncline.  ##
 140 ## ------------------- ##
 141
 142
 143 AT_TEST([Prologue syncline],
 144 [[%{
 145 #error "2"
 146 ]AT_YYERROR_DECLARE_EXTERN[
 147 ]AT_YYLEX_DECLARE_EXTERN[
 148 %}
 149 %%
 150 exp: '0';
 151 %%
 152 ]],
 153 [input.y:2: #error "2"
 154 ])
 155
 156
 157 ## ----------------- ##
 158 ## %union syncline.  ##
 159 ## ----------------- ##
 160
 161 AT_TEST([%union syncline],
 162 [[%union {
 163 #error "2"
 164   char dummy;
 165 }
 166 %{
 167 ]AT_YYERROR_DECLARE_EXTERN[
 168 ]AT_YYLEX_DECLARE_EXTERN[
 169 %}
 170 %%
 171 exp: '0';
 172 %%
 173 ]],
 174 [input.y:2: #error "2"
 175 ])
 176
 177
 178 ## ----------------------- ##
 179 ## Postprologue syncline.  ##
 180 ## ----------------------- ##
 181
 182 AT_TEST([Postprologue syncline],
 183 [[%{
 184 ]AT_YYERROR_DECLARE_EXTERN[
 185 ]AT_YYLEX_DECLARE_EXTERN[
 186 %}
 187 %union
 188 {
 189   int ival;
 190 }
 191 %{
 192 #error "10"
 193 %}
 194 %%
 195 exp: '0';
 196 %%
 197 ]],
 198 [input.y:10: #error "10"
 199 ])
 200
 201
 202 ## ----------------- ##
 203 ## Action syncline.  ##
 204 ## ----------------- ##
 205
 206 AT_TEST([Action syncline],
 207 [[%{
 208 ]AT_YYERROR_DECLARE_EXTERN[
 209 ]AT_YYLEX_DECLARE_EXTERN[
 210 %}
 211 %%
 212 exp:
 213 {
 214 #error "8"
 215 };
 216 ]],
 217 [input.y:8: #error "8"
 218 ])
 219
 220
 221 ## ------------------- ##
 222 ## Epilogue syncline.  ##
 223 ## ------------------- ##
 224
 225 AT_TEST([Epilogue syncline],
 226 [[%{
 227 ]AT_YYERROR_DECLARE_EXTERN[
 228 ]AT_YYLEX_DECLARE_EXTERN[
 229 %}
 230 %%
 231 exp: '0';
 232 %%
 233 #error "8"
 234 ]],
 235 [input.y:8: #error "8"
 236 ])
 237
 238 ## -------------------- ##
 239 ## %code top syncline.  ##
 240 ## -------------------- ##
 241
 242 AT_TEST([%code top syncline],
 243 [[%code top {
 244 #error "2"
 245 }
 246 %{
 247 ]AT_YYERROR_DECLARE_EXTERN[
 248 ]AT_YYLEX_DECLARE_EXTERN[
 249 %}
 250 %%
 251 exp: '0';
 252 %%
 253 ]],
 254 [input.y:2: #error "2"
 255 ])
 256
 257 m4_popdef([AT_TEST])
 258
 259 ## ----------- ##
 260 ## %no-lines.  ##
 261 ## ----------- ##
 262
 263 m4_pushdef([AT_TEST],
 264 [AT_SETUP([%no-lines])
 265
 266 AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
 267 AT_DATA_GRAMMAR([input.y],
 268 [%skeleton "$1" %defines
 269 %{
 270 ]AT_YYERROR_DECLARE_EXTERN[
 271 ]AT_YYLEX_DECLARE_EXTERN[
 272 %}
 273 %%
 274 exp: '0'
 275 ])
 276 AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
 277 AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
 278 AT_BISON_OPTION_POPDEFS
 279
 280 AT_CLEANUP
 281 ])
 282
 283 AT_TEST([yacc.c])
 284 AT_TEST([glr.c])
 285 AT_TEST([lalr1.cc])
 286 AT_TEST([glr.cc])
 287
 288 m4_popdef([AT_TEST])