tests/synclines.at

   1 # Executing Actions.                               -*- Autotest -*-
   2
   3 # Copyright (C) 2002, 2004-2005, 2007, 2009-2015 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 $1], [ignore], [], [stderr])
  30
  31 # Transform stderr into something like this:
  32 #
  33 #   input.y:4: #error "4"
  34 #
  35 # In case GCC displays column information, strip it down.
  36 #
  37 #   input.y:4:2: #error "4"    or
  38 #   input.y:4.2: #error "4"    or
  39 #   input.y:4:2: error: #error "4"
  40 # =>
  41 #   input.y:4: #error "4"
  42 #
  43 # It may also issue more context information:
  44 #
  45 #   input.y: In function 'yyparse':
  46 #   input.y:8: #error "8"
  47 # =>
  48 #   input.y:4: #error "8"
  49 #
  50 # The message may include a caret-error (indented by GCC 4.8,
  51 # not by clang 3.2):
  52 #
  53 #   input.y:1:2: error: #error "1"
  54 #    #error "1"
  55 #     ^
  56 #
  57 # Possibly distcc adds its bits.
  58 #
  59 #   distcc[33187] ERROR: compile (null) on localhost failed
  60 #   syncline.c:1:2: error: #error "1"
  61 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  62 #
  63 # or even
  64 #
  65 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  66 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  67 #
  68 # The compiler might end by the number of messages issued (Clang 3.2):
  69 #
  70 #    syncline.c:1:2: error: "1"
  71 #    #error "1"
  72 #     ^
  73 #    1 error generated.
  74 #
  75 # When c++ is used to compiler C, we might have more messages (Clang 3.2):
  76 #
  77 #    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
  78 #
  79 #
  80 # xlc reports things like:
  81 #
  82 #    "input.yy", line 80.21: 1540-0218 (S) The call does not match any parameter list for "operator<<".
  83 #    "/usr/vacpp/include/iosfwd", line 32.6: 1506-205 (S) #error This file to be used only with IBM VisualAge C++ v4 and later compilers
  84
  85 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
  86   # 1. Remove useless lines.
  87
  88   # distcc clutter.
  89   s/^distcc\[\d+\] .*\n//gm;
  90   # c vs. c++.
  91   s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
  92   # Function context.
  93   s/^[^:]*: In function '[^']+':\n//gm;
  94   # Caret error.
  95   s/^ *#error.*\n *\^\n//gm;
  96   # Number of errors.
  97   s/^1 error generated\.\n//gm;
  98
  99   # 2. Normalize the lines we kept.
 100
 101   # xlc messages.  Remove also error identifier (e.g., "1540-0218 (S)").
 102   s/^"(.*?)", line ([\w.]*): \d+-\d+ \(.\) /$][1:$][2: /gm;
 103   # Remove column.
 104   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
 105   # Map all combinations of "error: " and "#error: " to "#error ".
 106   s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
 107 EOF
 108 ]],
 109   0, [stdout])
 110 ])
 111
 112
 113
 114 # AT_SYNCLINES_COMPILE(FILE)
 115 # --------------------------
 116 # Compile FILE expecting an error, and save in the file stdout the
 117 # normalized output.  If we can't get a trustable location
 118 # from the compiler, just skip the test.
 119 #
 120 # It seems impossible to find a generic scheme to check the location
 121 # of an error.  Even requiring GCC is not sufficient, since for instance
 122 # the version modified by Apple:
 123 #
 124 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
 125 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
 126 # | 19991024 (release) configure:2124: $? = 0
 127 #
 128 # instead of:
 129 #
 130 # | input.y:2: #error "2"
 131 #
 132 # it reports:
 133 #
 134 # | input.y:2: "2"
 135 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
 136 m4_define([AT_SYNCLINES_COMPILE],
 137 [# Check if we can trust location translation.
 138 AT_DATA([syncline.c],
 139 [[static void foo(void)
 140 {
 141 #error "3"
 142 }
 143 ]])
 144
 145 _AT_SYNCLINES_COMPILE([syncline.c])
 146 AT_CHECK([[test "`cat stdout`" = 'syncline.c:3: @%:@error "3"' || exit 77]])
 147
 148 # Then work for real.
 149 _AT_SYNCLINES_COMPILE([$1])
 150 ])
 151
 152
 153 # AT_TEST(TITLE, INPUT, ERROR-MSG)
 154 # --------------------------------
 155 # Check that compiling the parser produced from INPUT cause GCC
 156 # to issue ERROR-MSG.
 157 m4_pushdef([AT_TEST],
 158 [AT_SETUP([$1])
 159 AT_BISON_OPTION_PUSHDEFS
 160
 161 AT_DATA([[input.y]], [$2])
 162 AT_BISON_CHECK([-o input.c input.y])
 163 AT_SYNCLINES_COMPILE([input.c])
 164 AT_CHECK([cat stdout], 0, [$3])
 165 AT_BISON_OPTION_POPDEFS
 166 AT_CLEANUP
 167 ])
 168
 169
 170 ## ------------------- ##
 171 ## Prologue syncline.  ##
 172 ## ------------------- ##
 173
 174
 175 AT_TEST([Prologue syncline],
 176 [[%{
 177 #error "2"
 178 ]AT_YYERROR_DECLARE_EXTERN[
 179 ]AT_YYLEX_DECLARE_EXTERN[
 180 %}
 181 %%
 182 exp: '0';
 183 %%
 184 ]],
 185 [input.y:2: #error "2"
 186 ])
 187
 188
 189 ## ----------------- ##
 190 ## %union syncline.  ##
 191 ## ----------------- ##
 192
 193 AT_TEST([%union syncline],
 194 [[%union {
 195 #error "2"
 196   char dummy;
 197 }
 198 %{
 199 ]AT_YYERROR_DECLARE_EXTERN[
 200 ]AT_YYLEX_DECLARE_EXTERN[
 201 %}
 202 %%
 203 exp: '0';
 204 %%
 205 ]],
 206 [input.y:2: #error "2"
 207 ])
 208
 209
 210 ## ---------------------- ##
 211 ## %union name syncline.  ##
 212 ## ---------------------- ##
 213
 214 # Check that invalid union names are properly reported in the
 215 # source file.
 216 AT_SETUP([%union name syncline])
 217 AT_BISON_OPTION_PUSHDEFS
 218 AT_DATA([[input.y]],
 219 [[%union break
 220 {
 221   char dummy;
 222 }
 223 %{
 224 ]AT_YYERROR_DECLARE_EXTERN[
 225 ]AT_YYLEX_DECLARE_EXTERN[
 226 %}
 227 %%
 228 exp: '0';
 229 %%
 230 ]])
 231
 232 AT_BISON_CHECK([-o input.c input.y])
 233 AT_SYNCLINES_COMPILE([input.c])
 234 AT_CHECK([[grep '^input.y:1' stdout]], 0, [ignore])
 235 AT_BISON_OPTION_POPDEFS
 236 AT_CLEANUP
 237
 238
 239 ## ----------------------- ##
 240 ## Postprologue syncline.  ##
 241 ## ----------------------- ##
 242
 243 AT_TEST([Postprologue syncline],
 244 [[%{
 245 ]AT_YYERROR_DECLARE_EXTERN[
 246 ]AT_YYLEX_DECLARE_EXTERN[
 247 %}
 248 %union
 249 {
 250   int ival;
 251 }
 252 %{
 253 #error "10"
 254 %}
 255 %%
 256 exp: '0';
 257 %%
 258 ]],
 259 [input.y:10: #error "10"
 260 ])
 261
 262
 263 ## ----------------- ##
 264 ## Action syncline.  ##
 265 ## ----------------- ##
 266
 267 AT_TEST([Action syncline],
 268 [[%{
 269 ]AT_YYERROR_DECLARE_EXTERN[
 270 ]AT_YYLEX_DECLARE_EXTERN[
 271 %}
 272 %%
 273 exp:
 274 {
 275 #error "8"
 276 };
 277 ]],
 278 [input.y:8: #error "8"
 279 ])
 280
 281
 282 ## ------------------- ##
 283 ## Epilogue syncline.  ##
 284 ## ------------------- ##
 285
 286 AT_TEST([Epilogue syncline],
 287 [[%{
 288 ]AT_YYERROR_DECLARE_EXTERN[
 289 ]AT_YYLEX_DECLARE_EXTERN[
 290 %}
 291 %%
 292 exp: '0';
 293 %%
 294 #error "8"
 295 ]],
 296 [input.y:8: #error "8"
 297 ])
 298
 299 ## -------------------- ##
 300 ## %code top syncline.  ##
 301 ## -------------------- ##
 302
 303 AT_TEST([%code top syncline],
 304 [[%code top {
 305 #error "2"
 306 }
 307 %{
 308 ]AT_YYERROR_DECLARE_EXTERN[
 309 ]AT_YYLEX_DECLARE_EXTERN[
 310 %}
 311 %%
 312 exp: '0';
 313 %%
 314 ]],
 315 [input.y:2: #error "2"
 316 ])
 317
 318 m4_popdef([AT_TEST])
 319
 320 ## ----------- ##
 321 ## %no-lines.  ##
 322 ## ----------- ##
 323
 324 m4_pushdef([AT_TEST],
 325 [AT_SETUP([%no-lines: $1])
 326
 327 AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
 328 AT_DATA_GRAMMAR([input.y],
 329 [%skeleton "$1" %defines
 330 %{
 331 ]AT_YYERROR_DECLARE_EXTERN[
 332 ]AT_YYLEX_DECLARE_EXTERN[
 333 %}
 334 %%
 335 exp: '0'
 336 ])
 337 AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
 338 AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
 339 AT_BISON_OPTION_POPDEFS
 340
 341 AT_CLEANUP
 342 ])
 343
 344 AT_TEST([yacc.c])
 345 AT_TEST([glr.c])
 346 AT_TEST([lalr1.cc])
 347 AT_TEST([glr.cc])
 348
 349 m4_popdef([AT_TEST])