tests/synclines.at

   1 # Executing Actions.                               -*- Autotest -*-
   2
   3 # Copyright (C) 2002, 2004-2005, 2007, 2009-2013 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 $1], [ignore], [], [stderr])
  30
  31 # Transform stderr into something like this:
  32 #
  33 #   input.y:4: #error "4"
  34 #
  35 # In case GCC displays column information, strip it down.
  36 #
  37 #   input.y:4:2: #error "4"    or
  38 #   input.y:4.2: #error "4"    or
  39 #   input.y:4:2: error: #error "4"
  40 # =>
  41 #   input.y:4: #error "4"
  42 #
  43 # It may also issue more context information:
  44 #
  45 #   input.y: In function 'yyparse':
  46 #   input.y:8: #error "8"
  47 # =>
  48 #   input.y:4: #error "8"
  49 #
  50 # The message may include a caret-error (indented by GCC 4.8,
  51 # not by clang 3.2):
  52 #
  53 #   input.y:1:2: error: #error "1"
  54 #    #error "1"
  55 #     ^
  56 #
  57 # Possibly distcc adds its bits.
  58 #
  59 #   distcc[33187] ERROR: compile (null) on localhost failed
  60 #   syncline.c:1:2: error: #error "1"
  61 #   distcc[33185] ERROR: compile syncline.c on localhost failed
  62 #
  63 # or even
  64 #
  65 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
  66 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
  67 #
  68 # The compiler might end by the number of messages issued (Clang 3.2):
  69 #
  70 #    syncline.c:1:2: error: "1"
  71 #    #error "1"
  72 #     ^
  73 #    1 error generated.
  74 #
  75 # When c++ is used to compiler C, we might have more messages (Clang 3.2):
  76 #
  77 #    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
  78
  79 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
  80   # 1. Remove useless lines.
  81
  82   # distcc clutter.
  83   s/^distcc\[\d+\] .*\n//gm;
  84   # c vs. c++.
  85   s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
  86   # Function context.
  87   s/^[^:]*: In function '[^']+':\n//gm;
  88   # Caret error.
  89   s/^ *#error.*\n *\^\n//gm;
  90   # Number of errors.
  91   s/^1 error generated\.\n//gm;
  92
  93   # 2. Normalize the lines we kept.
  94
  95   # Remove column.
  96   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
  97   # Map all combinations of "error: " and "#error: " to "#error ".
  98   s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
  99 EOF
 100 ]],
 101   0, [stdout])
 102 ])
 103
 104 # AT_TEST(TITLE, INPUT, ERROR-MSG)
 105 # --------------------------------
 106 # Check that compiling the parser produced from INPUT cause GCC
 107 # to issue ERROR-MSG.
 108 m4_pushdef([AT_TEST],
 109 [AT_SETUP([$1])
 110 AT_BISON_OPTION_PUSHDEFS
 111 # It seems impossible to find a generic scheme to check the location
 112 # of an error.  Even requiring GCC is not sufficient, since for instance
 113 # the version modified by Apple:
 114 #
 115 # | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
 116 # | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
 117 # | 19991024 (release) configure:2124: $? = 0
 118 #
 119 # instead of:
 120 #
 121 # | input.y:2: #error "2"
 122 #
 123 # it reports:
 124 #
 125 # | input.y:2: "2"
 126 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
 127
 128 AT_DATA([syncline.c],
 129 [[#error "1"
 130 int i; /* avoids -pedantic warning about an empty translation unit. */
 131 ]])
 132
 133 AT_SYNCLINES_COMPILE([syncline.c])
 134 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
 135
 136 AT_DATA([[input.y]], [$2])
 137 AT_BISON_CHECK([-o input.c input.y])
 138 AT_SYNCLINES_COMPILE([input.c])
 139 AT_CHECK([cat stdout], 0, [$3])
 140 AT_BISON_OPTION_POPDEFS
 141 AT_CLEANUP
 142 ])
 143
 144
 145 ## ------------------- ##
 146 ## Prologue syncline.  ##
 147 ## ------------------- ##
 148
 149
 150 AT_TEST([Prologue syncline],
 151 [[%{
 152 #error "2"
 153 ]AT_YYERROR_DECLARE_EXTERN[
 154 ]AT_YYLEX_DECLARE_EXTERN[
 155 %}
 156 %%
 157 exp: '0';
 158 %%
 159 ]],
 160 [input.y:2: #error "2"
 161 ])
 162
 163
 164 ## ----------------- ##
 165 ## %union syncline.  ##
 166 ## ----------------- ##
 167
 168 AT_TEST([%union syncline],
 169 [[%union {
 170 #error "2"
 171   char dummy;
 172 }
 173 %{
 174 ]AT_YYERROR_DECLARE_EXTERN[
 175 ]AT_YYLEX_DECLARE_EXTERN[
 176 %}
 177 %%
 178 exp: '0';
 179 %%
 180 ]],
 181 [input.y:2: #error "2"
 182 ])
 183
 184
 185 ## ----------------------- ##
 186 ## Postprologue syncline.  ##
 187 ## ----------------------- ##
 188
 189 AT_TEST([Postprologue syncline],
 190 [[%{
 191 ]AT_YYERROR_DECLARE_EXTERN[
 192 ]AT_YYLEX_DECLARE_EXTERN[
 193 %}
 194 %union
 195 {
 196   int ival;
 197 }
 198 %{
 199 #error "10"
 200 %}
 201 %%
 202 exp: '0';
 203 %%
 204 ]],
 205 [input.y:10: #error "10"
 206 ])
 207
 208
 209 ## ----------------- ##
 210 ## Action syncline.  ##
 211 ## ----------------- ##
 212
 213 AT_TEST([Action syncline],
 214 [[%{
 215 ]AT_YYERROR_DECLARE_EXTERN[
 216 ]AT_YYLEX_DECLARE_EXTERN[
 217 %}
 218 %%
 219 exp:
 220 {
 221 #error "8"
 222 };
 223 ]],
 224 [input.y:8: #error "8"
 225 ])
 226
 227
 228 ## ------------------- ##
 229 ## Epilogue syncline.  ##
 230 ## ------------------- ##
 231
 232 AT_TEST([Epilogue syncline],
 233 [[%{
 234 ]AT_YYERROR_DECLARE_EXTERN[
 235 ]AT_YYLEX_DECLARE_EXTERN[
 236 %}
 237 %%
 238 exp: '0';
 239 %%
 240 #error "8"
 241 ]],
 242 [input.y:8: #error "8"
 243 ])
 244
 245 ## -------------------- ##
 246 ## %code top syncline.  ##
 247 ## -------------------- ##
 248
 249 AT_TEST([%code top syncline],
 250 [[%code top {
 251 #error "2"
 252 }
 253 %{
 254 ]AT_YYERROR_DECLARE_EXTERN[
 255 ]AT_YYLEX_DECLARE_EXTERN[
 256 %}
 257 %%
 258 exp: '0';
 259 %%
 260 ]],
 261 [input.y:2: #error "2"
 262 ])
 263
 264 m4_popdef([AT_TEST])
 265
 266 ## ----------- ##
 267 ## %no-lines.  ##
 268 ## ----------- ##
 269
 270 m4_pushdef([AT_TEST],
 271 [AT_SETUP([%no-lines: $1])
 272
 273 AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
 274 AT_DATA_GRAMMAR([input.y],
 275 [%skeleton "$1" %defines
 276 %{
 277 ]AT_YYERROR_DECLARE_EXTERN[
 278 ]AT_YYLEX_DECLARE_EXTERN[
 279 %}
 280 %%
 281 exp: '0'
 282 ])
 283 AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
 284 AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
 285 AT_BISON_OPTION_POPDEFS
 286
 287 AT_CLEANUP
 288 ])
 289
 290 AT_TEST([yacc.c])
 291 AT_TEST([glr.c])
 292 AT_TEST([lalr1.cc])
 293 AT_TEST([glr.cc])
 294
 295 m4_popdef([AT_TEST])