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 $1], [ignore], [], [stderr])
  30
  31 # Transform stderr into something like this:
  32 #
  33 #   input.y:4: #error "4"
  34 #
  35 # In case GCC displays column information, strip it down.
  36 #
  37 #   input.y:4:2: #error "4"    or
  38 #   input.y:4.2: #error "4"    or
  39 #   input.y:4:2: error: #error "4"
  40 # =>
  41 #   input.y:4: #error "4"
  42 #
  43 # It may also issue more context information:
  44 #
  45 #   input.y: In function 'yyparse':
  46 #   input.y:8: #error "8"
  47 # =>
  48 #   input.y:4: #error "8"
  49 #
  50 # The message may include a caret-error (indented by GCC 4.8,
  51 # not by clang 3.2):
  52 #
  53 #   input.y:1:2: error: #error "1"
  54 #    #error "1"
  55 #     ^
  56 #
  57 # Possibly distcc adds its bits.
  58 #
  59 #   distcc[33187] ERROR: compile (null) on localhost failed
  60 #   syncline.c:1:2: error: #error "1"
  61 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  62 #
  63 # or even
  64 #
  65 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  66 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  67 #
  68 # The compiler might end by the number of messages issued (Clang 3.2):
  69 #
  70 #    syncline.c:1:2: error: "1"
  71 #    #error "1"
  72 #     ^
  73 #    1 error generated.
  74 #
  75 # When c++ is used to compiler C, we might have more messages (Clang 3.2):
  76 #
  77 #    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
  78 #
  79 #
  80 # xlc reports things like:
  81 #
  82 #    "input.yy", line 80.21: 1540-0218 (S) The call does not match any parameter list for "operator<<".
  83 #    "/usr/vacpp/include/iosfwd", line 32.6: 1506-205 (S) #error This file to be used only with IBM VisualAge C++ v4 and later compilers
  84 #
  85 # Newer GCCs go further and if the function is declared static, complain
  86 # that it's not used.
  87 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
  88   # 1. Remove useless lines.
  89
  90   # distcc clutter.
  91   s/^distcc\[\d+\] .*\n//gm;
  92   # c vs. c++.
  93   s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
  94   # Function context.
  95   s/^[^:]*: In function '[^']+':\n//gm;
  96   # Caret error.
  97   s/^ *#error.*\n *\^\n//gm;
  98   # Number of errors.
  99   s/^1 error generated\.\n//gm;
 100
 101   # 2. Normalize the lines we kept.
 102
 103   # xlc messages.  Remove also error identifier (e.g., "1540-0218 (S)").
 104   s/^"(.*?)", line ([\w.]*): \d+-\d+ \(.\) /$][1:$][2: /gm;
 105   # Remove column.
 106   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
 107   # Map all combinations of "error: " and "#error: " to "#error ".
 108   s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
 109 EOF
 110 ]],
 111   0, [stdout])
 112 ])
 113
 114
 115
 116 # AT_SYNCLINES_COMPILE(FILE)
 117 # --------------------------
 118 # Compile FILE expecting an error, and save in the file stdout the
 119 # normalized output.  If we can't get a trustable location
 120 # from the compiler, just skip the test.
 121 #
 122 # It seems impossible to find a generic scheme to check the location
 123 # of an error.  Even requiring GCC is not sufficient, since for instance
 124 # the version modified by Apple:
 125 #
 126 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
 127 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
 128 # | 19991024 (release) configure:2124: $? = 0
 129 #
 130 # instead of:
 131 #
 132 # | input.y:2: #error "2"
 133 #
 134 # it reports:
 135 #
 136 # | input.y:2: "2"
 137 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
 138 m4_define([AT_SYNCLINES_COMPILE],
 139 [# Check if we can trust location translation.
 140 AT_DATA([syncline.c],
 141 [[void foo (void);
 142 void foo (void)
 143 {
 144 #error "4"
 145 }
 146 ]])
 147
 148 _AT_SYNCLINES_COMPILE([syncline.c])
 149 AT_CHECK([[test "`cat stdout`" = 'syncline.c:4: @%:@error "4"' || exit 77]])
 150
 151 # Then work for real.
 152 _AT_SYNCLINES_COMPILE([$1])
 153 ])
 154
 155
 156 # AT_TEST(TITLE, INPUT, ERROR-MSG)
 157 # --------------------------------
 158 # Check that compiling the parser produced from INPUT cause GCC
 159 # to issue ERROR-MSG.
 160 m4_pushdef([AT_TEST],
 161 [AT_SETUP([$1])
 162 AT_BISON_OPTION_PUSHDEFS
 163
 164 AT_DATA([[input.y]], [$2])
 165 AT_BISON_CHECK([-o input.c input.y])
 166 AT_SYNCLINES_COMPILE([input.c])
 167 AT_CHECK([cat stdout], 0, [$3])
 168 AT_BISON_OPTION_POPDEFS
 169 AT_CLEANUP
 170 ])
 171
 172
 173 ## ------------------- ##
 174 ## Prologue syncline.  ##
 175 ## ------------------- ##
 176
 177
 178 AT_TEST([Prologue syncline],
 179 [[%{
 180 #error "2"
 181 ]AT_YYERROR_DECLARE_EXTERN[
 182 ]AT_YYLEX_DECLARE_EXTERN[
 183 %}
 184 %%
 185 exp: '0';
 186 %%
 187 ]],
 188 [input.y:2: #error "2"
 189 ])
 190
 191
 192 ## ----------------- ##
 193 ## %union syncline.  ##
 194 ## ----------------- ##
 195
 196 AT_TEST([%union syncline],
 197 [[%union {
 198 #error "2"
 199   char dummy;
 200 }
 201 %{
 202 ]AT_YYERROR_DECLARE_EXTERN[
 203 ]AT_YYLEX_DECLARE_EXTERN[
 204 %}
 205 %%
 206 exp: '0';
 207 %%
 208 ]],
 209 [input.y:2: #error "2"
 210 ])
 211
 212
 213 ## ---------------------- ##
 214 ## %union name syncline.  ##
 215 ## ---------------------- ##
 216
 217 # Check that invalid union names are properly reported in the
 218 # source file.
 219 AT_SETUP([%union name syncline])
 220 AT_BISON_OPTION_PUSHDEFS
 221 AT_DATA([[input.y]],
 222 [[%union break
 223 {
 224   char dummy;
 225 }
 226 %{
 227 ]AT_YYERROR_DECLARE_EXTERN[
 228 ]AT_YYLEX_DECLARE_EXTERN[
 229 %}
 230 %%
 231 exp: '0';
 232 %%
 233 ]])
 234
 235 AT_BISON_CHECK([-o input.c input.y])
 236 AT_SYNCLINES_COMPILE([input.c])
 237 AT_CHECK([[grep '^input.y:1' stdout]], 0, [ignore])
 238 AT_BISON_OPTION_POPDEFS
 239 AT_CLEANUP
 240
 241
 242 ## ----------------------- ##
 243 ## Postprologue syncline.  ##
 244 ## ----------------------- ##
 245
 246 AT_TEST([Postprologue syncline],
 247 [[%{
 248 ]AT_YYERROR_DECLARE_EXTERN[
 249 ]AT_YYLEX_DECLARE_EXTERN[
 250 %}
 251 %union
 252 {
 253   int ival;
 254 }
 255 %{
 256 #error "10"
 257 %}
 258 %%
 259 exp: '0';
 260 %%
 261 ]],
 262 [input.y:10: #error "10"
 263 ])
 264
 265
 266 ## ----------------- ##
 267 ## Action syncline.  ##
 268 ## ----------------- ##
 269
 270 AT_TEST([Action syncline],
 271 [[%{
 272 ]AT_YYERROR_DECLARE_EXTERN[
 273 ]AT_YYLEX_DECLARE_EXTERN[
 274 %}
 275 %%
 276 exp:
 277 {
 278 #error "8"
 279 };
 280 ]],
 281 [input.y:8: #error "8"
 282 ])
 283
 284
 285 ## ------------------- ##
 286 ## Epilogue syncline.  ##
 287 ## ------------------- ##
 288
 289 AT_TEST([Epilogue syncline],
 290 [[%{
 291 ]AT_YYERROR_DECLARE_EXTERN[
 292 ]AT_YYLEX_DECLARE_EXTERN[
 293 %}
 294 %%
 295 exp: '0';
 296 %%
 297 #error "8"
 298 ]],
 299 [input.y:8: #error "8"
 300 ])
 301
 302 ## -------------------- ##
 303 ## %code top syncline.  ##
 304 ## -------------------- ##
 305
 306 AT_TEST([%code top syncline],
 307 [[%code top {
 308 #error "2"
 309 }
 310 %{
 311 ]AT_YYERROR_DECLARE_EXTERN[
 312 ]AT_YYLEX_DECLARE_EXTERN[
 313 %}
 314 %%
 315 exp: '0';
 316 %%
 317 ]],
 318 [input.y:2: #error "2"
 319 ])
 320
 321 m4_popdef([AT_TEST])
 322
 323 ## ----------- ##
 324 ## %no-lines.  ##
 325 ## ----------- ##
 326
 327 m4_pushdef([AT_TEST],
 328 [AT_SETUP([%no-lines: $1])
 329
 330 AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
 331 AT_DATA_GRAMMAR([input.y],
 332 [%skeleton "$1" %defines
 333 %{
 334 ]AT_YYERROR_DECLARE_EXTERN[
 335 ]AT_YYLEX_DECLARE_EXTERN[
 336 %}
 337 %%
 338 exp: '0'
 339 ])
 340 AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
 341 AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
 342 AT_BISON_OPTION_POPDEFS
 343
 344 AT_CLEANUP
 345 ])
 346
 347 AT_TEST([yacc.c])
 348 AT_TEST([glr.c])
 349 AT_TEST([lalr1.cc])
 350 AT_TEST([glr.cc])
 351
 352 m4_popdef([AT_TEST])