tests/input.at

   1 # Checking the Bison scanner.                    -*- Autotest -*-
   2
   3 # Copyright (C) 2002-2012 Free Software Foundation, Inc.
   4
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 AT_BANNER([[Input Processing.]])
  19
  20 # Mostly test that we are robust to mistakes.
  21
  22
  23 ## ---------------- ##
  24 ## Invalid inputs.  ##
  25 ## ---------------- ##
  26
  27 AT_SETUP([Invalid inputs])
  28
  29 AT_DATA([input.y],
  30 [[\000\001\002\377?
  31 %%
  32 ?
  33 default: 'a' }
  34 %&
  35 %a-does-not-exist
  36 %-
  37 %{
  38 ]])
  39 AT_CHECK([[$PERL -pi -e 's/\\(\d{3})/chr(oct($1))/ge' input.y || exit 77]])
  40
  41 AT_BISON_CHECK([input.y], [1], [],
  42 [[input.y:1.1-2: error: invalid characters: '\0\001\002\377?'
  43 input.y:3.1: error: invalid character: '?'
  44 input.y:4.14: error: invalid character: '}'
  45 input.y:5.1: error: invalid character: '%'
  46 input.y:5.2: error: invalid character: '&'
  47 input.y:6.1-17: error: invalid directive: '%a-does-not-exist'
  48 input.y:7.1: error: invalid character: '%'
  49 input.y:7.2: error: invalid character: '-'
  50 input.y:8.1-9.0: error: missing '%}' at end of file
  51 input.y:8.1-9.0: error: syntax error, unexpected %{...%}
  52 ]])
  53
  54 AT_CLEANUP
  55
  56
  57 AT_SETUP([Invalid inputs with {}])
  58
  59 # We used to SEGV here.  See
  60 # http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html
  61
  62 AT_DATA([input.y],
  63 [[
  64 %destructor
  65 %initial-action
  66 %lex-param
  67 %parse-param
  68 %printer
  69 %union
  70 ]])
  71
  72 AT_BISON_CHECK([input.y], [1], [],
  73 [[input.y:3.1-15: error: syntax error, unexpected %initial-action, expecting {...}
  74 ]])
  75
  76 AT_CLEANUP
  77
  78
  79
  80 ## ------------ ##
  81 ## Invalid $n.  ##
  82 ## ------------ ##
  83
  84 AT_SETUP([Invalid $n and @n])
  85
  86 AT_DATA([input.y],
  87 [[%%
  88 exp: { $$ = $1 ; };
  89 exp: { @$ = @1 ; };
  90 ]])
  91
  92 AT_BISON_CHECK([input.y], [1], [],
  93 [[input.y:2.13-14: error: integer out of range: '$1'
  94 input.y:3.13-14: error: integer out of range: '@1'
  95 ]])
  96
  97 AT_CLEANUP
  98
  99
 100 ## -------------- ##
 101 ## Type Clashes.  ##
 102 ## -------------- ##
 103
 104 AT_SETUP([Type Clashes])
 105
 106 AT_DATA([input.y],
 107 [[%union { int bar; }
 108 %token foo
 109 %type <bar> exp
 110 %%
 111 exp: foo { $$; } foo { $2; } foo
 112    | foo
 113    | /* Empty. */
 114    ;
 115 ]])
 116
 117 AT_BISON_CHECK([input.y], [1], [],
 118 [[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type
 119 input.y:5.24-25: error: $2 of 'exp' has no declared type
 120 input.y:5.6-32: warning: type clash on default action: <bar> != <> [-Wother]
 121 input.y:6.6-8: warning: type clash on default action: <bar> != <> [-Wother]
 122 input.y:7.5: warning: empty rule for typed nonterminal, and no action [-Wother]
 123 ]])
 124
 125 AT_CLEANUP
 126
 127
 128 # _AT_UNUSED_VALUES_DECLARATIONS()
 129 # --------------------------------
 130 # Generate the token, type, and destructor
 131 # declarations for the unused values tests.
 132 m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 133 [[[%token <integer> INT;
 134 %type <integer> a b c d e f g h i j k l;
 135 %destructor { destroy ($$); } INT a b c d e f g h i j k l;]]])
 136
 137
 138 # AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
 139 # ----------------------------------------------------------------
 140 # Generate a grammar to test unused values, compile it, run it.  If
 141 # DECLARATIONS_AFTER is set, then the token, type, and destructor
 142 # declarations are generated after the rules rather than before.  If
 143 # CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set.
 144 m4_define([AT_CHECK_UNUSED_VALUES],
 145 [AT_DATA([input.y],
 146 m4_ifval($1, [
 147
 148
 149 ], [_AT_UNUSED_VALUES_DECLARATIONS
 150 ])[[%%
 151 start:
 152   'a' a { $]2[; } | 'b' b { $]2[; } | 'c' c { $]2[; } | 'd' d { $]2[; }
 153 | 'e' e { $]2[; } | 'f' f { $]2[; } | 'g' g { $]2[; } | 'h' h { $]2[; }
 154 | 'i' i { $]2[; } | 'j' j { $]2[; } | 'k' k { $]2[; } | 'l' l { $]2[; }
 155 ;
 156
 157 a: INT | INT { } INT { } INT { };
 158 b: INT | /* empty */;
 159 c: INT | INT { $]1[; } INT { $<integer>2; } INT { $<integer>4; };
 160 d: INT | INT { } INT { $]1[; } INT { $<integer>2; };
 161 e: INT | INT { } INT {  } INT { $]1[; };
 162 f: INT | INT { } INT {  } INT { $]$[ = $]1[ + $]3[ + $]5[; };
 163 g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 164 h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 165 i: INT | INT INT { } { $]$[ = $]1[ + $]2[; };
 166 j: INT | INT INT { $<integer>$ = 1; } { $]$[ = $]1[ + $]2[; };
 167 k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 168 l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };]]m4_ifval($1, [
 169 _AT_UNUSED_VALUES_DECLARATIONS])
 170 )
 171
 172 AT_BISON_CHECK(m4_ifval($2, [--warnings=midrule-values ])[-fcaret input.y],
 173                [0], [],
 174 [[input.y:11.10-32: warning: unset value: $][$ [-Wother]
 175  a: INT | INT { } INT { } INT { };
 176           ^^^^^^^^^^^^^^^^^^^^^^^
 177 input.y:11.10-12: warning: unused value: $][1 [-Wother]
 178  a: INT | INT { } INT { } INT { };
 179           ^^^
 180 input.y:11.18-20: warning: unused value: $][3 [-Wother]
 181  a: INT | INT { } INT { } INT { };
 182                   ^^^
 183 input.y:11.26-28: warning: unused value: $][5 [-Wother]
 184  a: INT | INT { } INT { } INT { };
 185                           ^^^
 186 input.y:12.9: warning: empty rule for typed nonterminal, and no action [-Wother]
 187  b: INT | /* empty */;
 188          ^
 189 ]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $][$ [-Wmidrule-values]
 190  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 191               ^^^^^^^
 192 input.y:13.26-41: warning: unset value: $][$ [-Wmidrule-values]
 193  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 194                           ^^^^^^^^^^^^^^^^
 195 ]]])[[input.y:13.10-62: warning: unset value: $][$ [-Wother]
 196  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 197           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 198 input.y:13.22-24: warning: unused value: $][3 [-Wother]
 199  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 200                       ^^^
 201 input.y:13.43-45: warning: unused value: $][5 [-Wother]
 202  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 203                                            ^^^
 204 ]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $][$ [-Wmidrule-values]
 205  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 206               ^^^
 207 ]]])[[input.y:14.10-49: warning: unset value: $][$ [-Wother]
 208  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 209           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 210 input.y:14.18-20: warning: unused value: $][3 [-Wother]
 211  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 212                   ^^^
 213 input.y:14.30-32: warning: unused value: $][5 [-Wother]
 214  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 215                               ^^^
 216 input.y:15.10-37: warning: unset value: $][$ [-Wother]
 217  e: INT | INT { } INT {  } INT { $][1; };
 218           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 219 input.y:15.18-20: warning: unused value: $][3 [-Wother]
 220  e: INT | INT { } INT {  } INT { $][1; };
 221                   ^^^
 222 input.y:15.27-29: warning: unused value: $][5 [-Wother]
 223  e: INT | INT { } INT {  } INT { $][1; };
 224                            ^^^
 225 input.y:17.10-58: warning: unset value: $][$ [-Wother]
 226  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 227           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 228 input.y:17.10-12: warning: unused value: $][1 [-Wother]
 229  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 230           ^^^
 231 ]]m4_ifval($2, [[[input.y:17.14-29: warning: unused value: $][2 [-Wmidrule-values]
 232  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 233               ^^^^^^^^^^^^^^^^
 234 ]]])[[input.y:17.31-33: warning: unused value: $][3 [-Wother]
 235  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 236                                ^^^
 237 ]]m4_ifval($2, [[[input.y:17.35-50: warning: unused value: $][4 [-Wmidrule-values]
 238  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 239                                    ^^^^^^^^^^^^^^^^
 240 ]]])[[input.y:17.52-54: warning: unused value: $][5 [-Wother]
 241  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 242                                                     ^^^
 243 input.y:18.10-72: warning: unset value: $][$ [-Wother]
 244  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 245           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 246 input.y:18.10-12: warning: unused value: $][1 [-Wother]
 247  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 248           ^^^
 249 input.y:18.31-33: warning: unused value: $][3 [-Wother]
 250  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 251                                ^^^
 252 ]]m4_ifval($2, [[[input.y:18.35-64: warning: unused value: $][4 [-Wmidrule-values]
 253  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 254                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 255 ]]])[[input.y:18.66-68: warning: unused value: $][5 [-Wother]
 256  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 257                                                                   ^^^
 258 ]]m4_ifval($2, [[[input.y:20.18-37: warning: unused value: $][3 [-Wmidrule-values]
 259  j: INT | INT INT { $<integer>$ = 1; } { $][$ = $][1 + $][2; };
 260                   ^^^^^^^^^^^^^^^^^^^^
 261 ]]])[[input.y:21.10-68: warning: unset value: $][$ [-Wother]
 262  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 263           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 264 input.y:21.10-12: warning: unused value: $][1 [-Wother]
 265  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 266           ^^^
 267 input.y:21.14-16: warning: unused value: $][2 [-Wother]
 268  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 269               ^^^
 270 ]]m4_ifval($2, [[[input.y:21.35-64: warning: unused value: $][4 [-Wmidrule-values]
 271  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 272                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 273 ]]]))
 274 ])
 275
 276 ## --------------- ##
 277 ## Unused values.  ##
 278 ## --------------- ##
 279
 280 AT_SETUP([Unused values])
 281 AT_CHECK_UNUSED_VALUES
 282 AT_CHECK_UNUSED_VALUES(, [1])
 283 AT_CLEANUP
 284
 285
 286 ## ------------------------------------------ ##
 287 ## Unused values before symbol declarations.  ##
 288 ## ------------------------------------------ ##
 289
 290 AT_SETUP([Unused values before symbol declarations])
 291 AT_CHECK_UNUSED_VALUES([1])
 292 AT_CHECK_UNUSED_VALUES([1], [1])
 293 AT_CLEANUP
 294
 295
 296 ## --------------------------------------------- ##
 297 ## Default %printer and %destructor redeclared.  ##
 298 ## --------------------------------------------- ##
 299
 300 AT_SETUP([Default %printer and %destructor redeclared])
 301
 302 AT_DATA([[input.y]],
 303 [[%destructor { destroy ($$); } <*> <*>
 304 %printer { print ($$); } <*> <*>
 305
 306 %destructor { destroy ($$); } <*>
 307 %printer { print ($$); } <*>
 308
 309 %destructor { destroy ($$); } <> <>
 310 %printer { print ($$); } <> <>
 311
 312 %destructor { destroy ($$); } <>
 313 %printer { print ($$); } <>
 314
 315 %%
 316
 317 start: ;
 318
 319 %destructor { destroy ($$); } <*>;
 320 %printer { print ($$); } <*>;
 321
 322 %destructor { destroy ($$); } <>;
 323 %printer { print ($$); } <>;
 324 ]])
 325
 326 AT_BISON_CHECK([input.y], [1], [],
 327 [[input.y:1.13-29: error: %destructor redeclaration for <*>
 328 input.y:1.13-29:     previous declaration
 329 input.y:2.10-24: error: %printer redeclaration for <*>
 330 input.y:2.10-24:     previous declaration
 331 input.y:4.13-29: error: %destructor redeclaration for <*>
 332 input.y:1.13-29:     previous declaration
 333 input.y:5.10-24: error: %printer redeclaration for <*>
 334 input.y:2.10-24:     previous declaration
 335 input.y:7.13-29: error: %destructor redeclaration for <>
 336 input.y:7.13-29:     previous declaration
 337 input.y:8.10-24: error: %printer redeclaration for <>
 338 input.y:8.10-24:     previous declaration
 339 input.y:10.13-29: error: %destructor redeclaration for <>
 340 input.y:7.13-29:      previous declaration
 341 input.y:11.10-24: error: %printer redeclaration for <>
 342 input.y:8.10-24:      previous declaration
 343 input.y:17.13-29: error: %destructor redeclaration for <*>
 344 input.y:4.13-29:      previous declaration
 345 input.y:18.10-24: error: %printer redeclaration for <*>
 346 input.y:5.10-24:      previous declaration
 347 input.y:20.13-29: error: %destructor redeclaration for <>
 348 input.y:10.13-29:     previous declaration
 349 input.y:21.10-24: error: %printer redeclaration for <>
 350 input.y:11.10-24:     previous declaration
 351 ]])
 352
 353 AT_CLEANUP
 354
 355
 356 ## ---------------------------------------------- ##
 357 ## Per-type %printer and %destructor redeclared.  ##
 358 ## ---------------------------------------------- ##
 359
 360 AT_SETUP([Per-type %printer and %destructor redeclared])
 361
 362 AT_DATA([[input.y]],
 363 [[%destructor { destroy ($$); } <field1> <field2>
 364 %printer { print ($$); } <field1> <field2>
 365
 366 %destructor { destroy ($$); } <field1> <field1>
 367 %printer { print ($$); } <field2> <field2>
 368
 369 %%
 370
 371 start: ;
 372
 373 %destructor { destroy ($$); } <field2> <field1>;
 374 %printer { print ($$); } <field2> <field1>;
 375 ]])
 376
 377 AT_BISON_CHECK([input.y], [1], [],
 378 [[input.y:4.13-29: error: %destructor redeclaration for <field1>
 379 input.y:1.13-29:     previous declaration
 380 input.y:4.13-29: error: %destructor redeclaration for <field1>
 381 input.y:4.13-29:     previous declaration
 382 input.y:5.10-24: error: %printer redeclaration for <field2>
 383 input.y:2.10-24:     previous declaration
 384 input.y:5.10-24: error: %printer redeclaration for <field2>
 385 input.y:5.10-24:     previous declaration
 386 input.y:11.13-29: error: %destructor redeclaration for <field1>
 387 input.y:4.13-29:      previous declaration
 388 input.y:11.13-29: error: %destructor redeclaration for <field2>
 389 input.y:1.13-29:      previous declaration
 390 input.y:12.10-24: error: %printer redeclaration for <field1>
 391 input.y:2.10-24:      previous declaration
 392 input.y:12.10-24: error: %printer redeclaration for <field2>
 393 input.y:5.10-24:      previous declaration
 394 ]])
 395
 396 AT_CLEANUP
 397
 398 ## ------------------- ##
 399 ## Undefined symbols.  ##
 400 ## ------------------- ##
 401
 402 AT_SETUP([Undefined symbols])
 403
 404 AT_DATA([[input.y]],
 405 [[%printer {} foo baz
 406 %destructor {} bar
 407 %type <foo> qux
 408 %%
 409 exp: bar;
 410 ]])
 411
 412 AT_BISON_CHECK([input.y], [1], [],
 413 [[input.y:2.16-18: error: symbol bar is used, but is not defined as a token and has no rules
 414 input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules [-Wother]
 415 input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules [-Wother]
 416 input.y:3.13-15: warning: symbol qux is used, but is not defined as a token and has no rules [-Wother]
 417 ]])
 418
 419 AT_CLEANUP
 420
 421
 422 ## ----------------------------------------------------- ##
 423 ## Unassociated types used for a printer or destructor.  ##
 424 ## ----------------------------------------------------- ##
 425
 426 AT_SETUP([Unassociated types used for a printer or destructor])
 427
 428 AT_DATA([[input.y]],
 429 [[%token <type1> tag1
 430 %type <type2> tag2
 431
 432 %printer { } <type1> <type3>
 433 %destructor { } <type2> <type4>
 434
 435 %%
 436
 437 exp: tag1 { $1; }
 438    | tag2 { $1; }
 439
 440 tag2: "a" { $$; }
 441 ]])
 442
 443 AT_BISON_CHECK([input.y], [0], [],
 444 [[input.y:4.22-28: warning: type <type3> is used, but is not associated to any symbol [-Wother]
 445 input.y:5.25-31: warning: type <type4> is used, but is not associated to any symbol [-Wother]
 446 ]])
 447
 448 AT_CLEANUP
 449
 450
 451 ## --------------------------------- ##
 452 ## Useless printers or destructors.  ##
 453 ## --------------------------------- ##
 454
 455 AT_SETUP([Useless printers or destructors])
 456
 457 # AT_TEST([INPUT], [STDERR])
 458 # --------------------------
 459 m4_pushdef([AT_TEST],
 460 [AT_DATA([[input.y]],
 461 [$1
 462 ])
 463 AT_BISON_CHECK([input.y], [0], [], [$2
 464 ])])
 465
 466 AT_TEST([[%token <type1> token1
 467 %token <type2> token2
 468 %token <type3> token3
 469 %token <type4> token4
 470 %token <type5> token51 token52
 471 %token <type6> token61 token62
 472 %token <type7> token7
 473
 474 %printer {} token1
 475 %destructor {} token2
 476 %printer {} token51
 477 %destructor {} token61
 478
 479 %printer {} token7
 480
 481 %printer {} <type1>
 482 %destructor {} <type2>
 483 %printer {} <type3>
 484 %destructor {} <type4>
 485
 486 %printer {} <type5>
 487 %destructor {} <type6>
 488
 489 %destructor {} <type7>
 490
 491 %%
 492 exp: "a";]],
 493 [[input.y:16.13-19: warning: useless %printer for type <type1> [-Wother]
 494 input.y:17.16-22: warning: useless %destructor for type <type2> [-Wother]]])
 495
 496 # If everybody is typed, <> is useless.
 497 AT_TEST([[%type <type> exp
 498 %token <type> a
 499 %printer {} <> <*>
 500 %%
 501 exp: a;]],
 502 [[input.y:3.13-14: warning: useless %printer for type <> [-Wother]]])
 503
 504 # If nobody is typed, <*> is useless.
 505 AT_TEST([[%token a
 506 %printer {} <> <*>
 507 %%
 508 exp: a;]],
 509 [[input.y:2.16-18: warning: useless %printer for type <*> [-Wother]]])
 510
 511 m4_popdef([AT_TEST])
 512
 513 AT_CLEANUP
 514
 515
 516 ## ---------------------------------------- ##
 517 ## Unused values with default %destructor.  ##
 518 ## ---------------------------------------- ##
 519
 520 AT_SETUP([Unused values with default %destructor])
 521
 522 AT_DATA([[input.y]],
 523 [[%destructor { destroy ($$); } <>
 524 %type <tag> tagged
 525
 526 %%
 527
 528 start: end end tagged tagged { $<tag>1; $3; } ;
 529 end: { } ;
 530 tagged: { } ;
 531 ]])
 532
 533 AT_BISON_CHECK([input.y], [0], [],
 534 [[input.y:6.8-45: warning: unset value: $$ [-Wother]
 535 input.y:6.12-14: warning: unused value: $2 [-Wother]
 536 input.y:7.6-8: warning: unset value: $$ [-Wother]
 537 ]])
 538
 539 AT_DATA([[input.y]],
 540 [[%destructor { destroy ($$); } <*>
 541 %type <tag> tagged
 542
 543 %%
 544
 545 start: end end tagged tagged { $<tag>1; $3; } ;
 546 end: { } ;
 547 tagged: { } ;
 548 ]])
 549
 550 AT_BISON_CHECK([input.y], [0], [],
 551 [[input.y:6.23-28: warning: unused value: $4 [-Wother]
 552 input.y:8.9-11: warning: unset value: $$ [-Wother]
 553 ]])
 554
 555 AT_CLEANUP
 556
 557
 558 ## ----------------------------------------- ##
 559 ## Unused values with per-type %destructor.  ##
 560 ## ----------------------------------------- ##
 561
 562 AT_SETUP([Unused values with per-type %destructor])
 563
 564 AT_DATA([[input.y]],
 565 [[%destructor { destroy ($$); } <field1>
 566 %type <field1> start end
 567
 568 %%
 569
 570 start: end end { $1; } ;
 571 end: { }  ;
 572 ]])
 573
 574 AT_BISON_CHECK([input.y], [0], [],
 575 [[input.y:6.8-22: warning: unset value: $$ [-Wother]
 576 input.y:6.12-14: warning: unused value: $2 [-Wother]
 577 input.y:7.6-8: warning: unset value: $$ [-Wother]
 578 ]])
 579
 580 AT_CLEANUP
 581
 582
 583 ## ---------------------- ##
 584 ## Incompatible Aliases.  ##
 585 ## ---------------------- ##
 586
 587 AT_SETUP([Incompatible Aliases])
 588
 589 AT_DATA([input.y],
 590 [[%token foo "foo"
 591
 592 %type <bar>       foo
 593 %printer {bar}    foo
 594 %destructor {bar} foo
 595 %left             foo
 596
 597 %type <baz>       "foo"
 598 %printer {baz}    "foo"
 599 %destructor {baz} "foo"
 600 %left             "foo"
 601
 602 %%
 603 exp: foo;
 604 ]])
 605
 606 AT_BISON_CHECK([input.y], [1], [],
 607 [[input.y:8.7-11: error: %type redeclaration for foo
 608 input.y:3.7-11:     previous declaration
 609 input.y:10.13-17: error: %destructor redeclaration for foo
 610 input.y:5.13-17:      previous declaration
 611 input.y:9.10-14: error: %printer redeclaration for foo
 612 input.y:4.10-14:     previous declaration
 613 input.y:11.1-5: error: %left redeclaration for foo
 614 input.y:6.1-5:      previous declaration
 615 ]])
 616
 617 AT_CLEANUP
 618
 619
 620
 621 ## ----------------------- ##
 622 ## Torturing the Scanner.  ##
 623 ## ----------------------- ##
 624
 625 # Be sure to compile and run, so that the C compiler checks what
 626 # we do.
 627
 628 AT_SETUP([Torturing the Scanner])
 629
 630 AT_BISON_OPTION_PUSHDEFS
 631 AT_DATA([input.y], [])
 632 AT_BISON_CHECK([input.y], [1], [],
 633 [[input.y:1.1: error: syntax error, unexpected end of file
 634 ]])
 635
 636
 637 AT_DATA([input.y],
 638 [{}
 639 ])
 640 AT_BISON_CHECK([input.y], [1], [],
 641 [[input.y:1.1-2: error: syntax error, unexpected {...}
 642 ]])
 643
 644
 645 AT_DATA_GRAMMAR([input.y],
 646 [[%{
 647 /* This is seen in GCC: a %{ and %} in middle of a comment. */
 648 const char *foo = "So %{ and %} can be here too.";
 649
 650 #if 0
 651 /* These examples test Bison while not stressing C compilers too much.
 652    Many C compilers mishandle backslash-newlines, so this part of the
 653    test is inside "#if 0".  The comment and string are written so that
 654    the "#endif" will be seen regardless of the C compiler bugs that we
 655    know about, namely:
 656
 657      HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
 658      comment.
 659
 660      The Apple Darwin compiler (as of late 2002) mishandles
 661      \\[newline]' within a character constant.
 662
 663    */
 664
 665 /\
 666 * A comment with backslash-newlines in it. %} *\
 667 \
 668 /
 669 /* { Close the above comment, if the C compiler mishandled it.  */
 670
 671 char str[] = "\\
 672 " A string with backslash-newlines in it %{ %} \\
 673 \
 674 "";
 675
 676 char apostrophe = '\'';
 677 #endif
 678
 679 #include <stdio.h>
 680 #include <stdlib.h>
 681 #include <assert.h>
 682 %}
 683 /* %{ and %} can be here too. */
 684
 685 %{
 686 /* Exercise pre-prologue dependency to %union.  */
 687 typedef int value;
 688 %}
 689
 690 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 691
 692 /* Also exercise %union. */
 693 %union
 694 {
 695   value ival; /* A comment to exercise an old bug. */
 696 };
 697
 698
 699 /* Exercise post-prologue dependency to %union.  */
 700 %{
 701 static YYSTYPE value_as_yystype (value val);
 702
 703 /* Exercise quotes in declarations.  */
 704 char quote[] = "@:>@@:>@,";
 705 %}
 706
 707 %{
 708 ]AT_YYERROR_DECLARE[
 709 ]AT_YYLEX_DECLARE[
 710 %}
 711
 712 %type <ival> '@<:@'
 713
 714 /* Exercise quotes in strings.  */
 715 %token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
 716
 717 %%
 718 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 1.  */
 719 exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
 720   {
 721     /* Exercise quotes in braces.  */
 722     char tmp[] = "@<:@%c@:>@,\n";
 723     printf (tmp, $1);
 724   }
 725 ;
 726
 727 two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
 728 oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
 729 output.or.oline.opt: ;|oline;;|output;;;
 730 output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
 731 %%
 732 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 2.  */
 733
 734 static YYSTYPE
 735 value_as_yystype (value val)
 736 {
 737   YYSTYPE res;
 738   res.ival = val;
 739   return res;
 740 }
 741 ]AT_YYERROR_DEFINE[
 742 static int
 743 yylex (void)
 744 {
 745   static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
 746 #output "; /* "
 747   */
 748   static size_t toknum;
 749   assert (toknum < sizeof input);
 750   yylval = value_as_yystype (input[toknum]);
 751   return input[toknum++];
 752 }
 753 ]])
 754
 755 # Pacify Emacs'font-lock-mode: "
 756
 757 AT_DATA([main.c],
 758 [[typedef int value;
 759 #include "input.h"
 760
 761 int yyparse (void);
 762
 763 int
 764 main (void)
 765 {
 766   return yyparse ();
 767 }
 768 ]])
 769 AT_BISON_OPTION_POPDEFS
 770
 771 AT_BISON_CHECK([-d -v -o input.c input.y])
 772 AT_COMPILE([input.o])
 773 AT_COMPILE([main.o])
 774 AT_COMPILE([input], [input.o main.o])
 775 AT_PARSER_CHECK([./input], 0,
 776 [[[@<:@],
 777 ]])
 778
 779 AT_CLEANUP
 780
 781
 782 ## ---------------------- ##
 783 ## Typed symbol aliases.  ##
 784 ## ---------------------- ##
 785
 786 AT_SETUP([Typed symbol aliases])
 787
 788 # Bison 2.0 broke typed symbol aliases - ensure they work.
 789
 790 AT_DATA_GRAMMAR([input.y],
 791 [[%union
 792 {
 793   int val;
 794 };
 795 %token <val> MY_TOKEN "MY TOKEN"
 796 %type <val> exp
 797 %%
 798 exp: "MY TOKEN";
 799 %%
 800 ]])
 801
 802 AT_BISON_CHECK([-o input.c input.y])
 803
 804 AT_CLEANUP
 805
 806
 807 ## --------- ##
 808 ## Require.  ##
 809 ## --------- ##
 810
 811 m4_define([AT_CHECK_REQUIRE],
 812 [AT_SETUP([Require $1])
 813 AT_DATA_GRAMMAR([input.y],
 814 [[%require "$1";
 815 %%
 816 empty_file:;
 817 ]])
 818 AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)
 819 AT_CLEANUP
 820 ])
 821
 822 AT_CHECK_REQUIRE(1.0, 0)
 823 AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
 824 ## FIXME: Some day augment this version number.
 825 AT_CHECK_REQUIRE(100.0, 63)
 826
 827
 828 ## ------------------------------------- ##
 829 ## String aliases for character tokens.  ##
 830 ## ------------------------------------- ##
 831
 832 AT_SETUP([String aliases for character tokens])
 833
 834 # Bison once thought a character token and its alias were different
 835 # symbols with the same user token number.
 836
 837 AT_DATA_GRAMMAR([input.y],
 838 [[%token 'a' "a"
 839 %%
 840 start: 'a';
 841 %%
 842 ]])
 843
 844 AT_BISON_CHECK([-o input.c input.y])
 845
 846 AT_CLEANUP
 847
 848
 849 ## -------------- ##
 850 ## Symbol names.  ##
 851 ## -------------- ##
 852
 853 AT_SETUP([Symbols])
 854
 855 AT_BISON_OPTION_PUSHDEFS
 856 AT_DATA_GRAMMAR([input.y],
 857 [[%token WITH-DASH
 858 %token WITHOUT_DASH "WITHOUT-DASH"
 859 %token WITH.PERIOD
 860 %token WITHOUT_PERIOD "WITHOUT.PERIOD"
 861 %code {
 862   ]AT_YYERROR_DECLARE[
 863   ]AT_YYLEX_DECLARE[
 864 }
 865 %%
 866 start: with-dash without_dash with.period without_period;
 867 with-dash: WITH-DASH;
 868 without_dash: "WITHOUT-DASH";
 869 with.period: WITH.PERIOD;
 870 without_period: "WITHOUT.PERIOD";
 871 %%
 872 ]AT_YYERROR_DEFINE[
 873 ]AT_YYLEX_DEFINE[
 874 ]])
 875 AT_BISON_OPTION_POPDEFS
 876
 877 # POSIX Yacc accept periods, but not dashes.
 878 AT_BISON_CHECK([--yacc -Wno-error input.y], [], [],
 879 [[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
 880 input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
 881 ]])
 882
 883 # So warn about them.
 884 AT_BISON_CHECK([-Wyacc input.y], [], [],
 885 [[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
 886 input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
 887 ]])
 888
 889 # Dashes are fine for GNU Bison.
 890 AT_BISON_CHECK([-o input.c input.y])
 891
 892 # Make sure we don't export silly token identifiers with periods or dashes.
 893 AT_COMPILE([input.o])
 894
 895
 896 # Periods are genuine letters, they can start identifiers.
 897 # Digits and dashes cannot.
 898 AT_DATA_GRAMMAR([input.y],
 899 [[%token .GOOD
 900          -GOOD
 901          1NV4L1D
 902          -123
 903 %%
 904 start: .GOOD GOOD
 905 ]])
 906 AT_BISON_CHECK([-o input.c input.y], [1], [],
 907 [[input.y:10.10: error: invalid character: '-'
 908 input.y:11.10-16: error: invalid identifier: '1NV4L1D'
 909 input.y:12.10: error: invalid character: '-'
 910 ]])
 911
 912 AT_CLEANUP
 913
 914
 915 ## ----------------- ##
 916 ## Numbered tokens.  ##
 917 ## ----------------- ##
 918
 919 AT_SETUP([Numbered tokens])
 920
 921 AT_DATA_GRAMMAR([redecl.y],
 922 [[%token DECIMAL_1     11259375
 923          HEXADECIMAL_1 0xabcdef
 924          HEXADECIMAL_2 0xFEDCBA
 925          DECIMAL_2     16702650
 926 %%
 927 start: DECIMAL_1 HEXADECIMAL_2;
 928 ]])
 929
 930 AT_BISON_CHECK([redecl.y], [1], [],
 931 [[redecl.y:10.10-22: error: user token number 11259375 redeclaration for HEXADECIMAL_1
 932 redecl.y:9.8-16:       previous declaration for DECIMAL_1
 933 redecl.y:12.10-18: error: user token number 16702650 redeclaration for DECIMAL_2
 934 redecl.y:11.10-22:     previous declaration for HEXADECIMAL_2
 935 ]])
 936
 937 AT_DATA_GRAMMAR([too-large.y],
 938 [[%token TOO_LARGE_DEC 999999999999999999999
 939          TOO_LARGE_HEX 0xFFFFFFFFFFFFFFFFFFF
 940 %%
 941 start: TOO_LARGE_DEC TOO_LARGE_HEX
 942 %%
 943 ]])
 944
 945 AT_BISON_CHECK([too-large.y], [1], [],
 946 [[too-large.y:9.22-42: error: integer out of range: '999999999999999999999'
 947 too-large.y:10.24-44: error: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
 948 ]])
 949
 950 AT_CLEANUP
 951
 952
 953 ## --------------------- ##
 954 ## Unclosed constructs.  ##
 955 ## --------------------- ##
 956
 957 AT_SETUP([Unclosed constructs])
 958
 959 # Bison's scan-gram.l once forgot to STRING_FINISH some unclosed
 960 # constructs, so they were prepended to whatever it STRING_GROW'ed
 961 # next.  It also threw them away rather than returning them to the
 962 # parser.  The effect was confusing subsequent error messages.
 963
 964 AT_DATA([input.y],
 965 [[%token A "a
 966 %token B "b"
 967 %token AB "ab" // Used to complain that "ab" was already used.
 968 %token C '1
 969 %token TWO "2"
 970 %token TICK_TWELVE "'12" // Used to complain that "'12" was already used.
 971
 972 %%
 973
 974 start: ;
 975
 976 // Used to report a syntax error because it didn't see any kind of symbol
 977 // identifier.
 978 %type <f> 'a
 979 ;
 980 %type <f> "a
 981 ;
 982 // Used to report a syntax error because it didn't see braced code.
 983 %destructor { free ($$)
 984 ]])
 985
 986 AT_BISON_CHECK([-o input.c input.y], 1, [],
 987 [[input.y:1.10-2.0: error: missing '"' at end of line
 988 input.y:4.10-5.0: error: missing "'" at end of line
 989 input.y:14.11-15.0: error: missing "'" at end of line
 990 input.y:16.11-17.0: error: missing '"' at end of line
 991 input.y:19.13-20.0: error: missing '}' at end of file
 992 input.y:20.1: error: syntax error, unexpected end of file
 993 ]])
 994
 995 AT_BISON_CHECK([-fcaret -o input.c input.y], 1, [],
 996 [[input.y:1.10-2.0: error: missing '"' at end of line
 997  %token A "a
 998           ^^
 999 input.y:4.10-5.0: error: missing "'" at end of line
1000  %token C '1
1001           ^^
1002 input.y:14.11-15.0: error: missing "'" at end of line
1003  %type <f> 'a
1004            ^^
1005 input.y:16.11-17.0: error: missing '"' at end of line
1006  %type <f> "a
1007            ^^
1008 input.y:19.13-20.0: error: missing '}' at end of file
1009  %destructor { free ($$)
1010              ^^^^^^^^^^^
1011 input.y:20.1: error: syntax error, unexpected end of file
1012 ]])
1013
1014 AT_CLEANUP
1015
1016
1017 ## ------------------------- ##
1018 ## %start after first rule.  ##
1019 ## ------------------------- ##
1020
1021 AT_SETUP([%start after first rule])
1022
1023 # Bison once complained that a %start after the first rule was a
1024 # redeclaration of the start symbol.
1025
1026 AT_DATA([input.y],
1027 [[%%
1028 false_start: ;
1029 start: false_start ;
1030 %start start;
1031 ]])
1032
1033 AT_BISON_CHECK([-o input.c input.y])
1034
1035 AT_CLEANUP
1036
1037
1038 ## --------------------- ##
1039 ## %prec takes a token.  ##
1040 ## --------------------- ##
1041
1042 AT_SETUP([%prec takes a token])
1043
1044 # Bison once allowed %prec sym where sym was a nonterminal.
1045
1046 AT_DATA([input.y],
1047 [[%%
1048 start: PREC %prec PREC ;
1049 PREC: ;
1050 ]])
1051
1052 AT_BISON_CHECK([input.y], [1], [],
1053 [[input.y:3.1-4: error: rule given for PREC, which is a token
1054 ]])
1055
1056 AT_CLEANUP
1057
1058
1059 ## ------------------------------- ##
1060 ## %prec's token must be defined.  ##
1061 ## ------------------------------- ##
1062
1063 AT_SETUP([[%prec's token must be defined]])
1064
1065 # According to POSIX, a %prec token must be defined separately.
1066
1067 AT_DATA([[input.y]],
1068 [[%%
1069 start: %prec PREC ;
1070 ]])
1071
1072 AT_BISON_CHECK([[input.y]], [[0]], [],
1073 [[input.y:2.8-17: warning: token for %prec is not defined: PREC [-Wother]
1074 ]])
1075
1076 AT_CLEANUP
1077
1078
1079 ## -------------------------------- ##
1080 ## Reject unused %code qualifiers.  ##
1081 ## -------------------------------- ##
1082
1083 AT_SETUP([Reject unused %code qualifiers])
1084
1085 AT_DATA([input-c.y],
1086 [[%code q {}
1087 %code bad {}
1088 %code bad {}
1089 %code format {}
1090 %%
1091 start: ;
1092 ]])
1093 AT_BISON_CHECK([[input-c.y]], [[1]], [],
1094 [[input-c.y:1.7: error: %code qualifier 'q' is not used
1095 input-c.y:2.7-9: error: %code qualifier 'bad' is not used
1096 input-c.y:3.7-9: error: %code qualifier 'bad' is not used
1097 input-c.y:4.7-12: error: %code qualifier 'format' is not used
1098 ]])
1099
1100 AT_DATA([input-c-glr.y],
1101 [[%code q {}
1102 %code bad {}
1103  %code bad {}
1104 %%
1105 start: ;
1106 ]])
1107 AT_BISON_CHECK([[input-c-glr.y]], [[1]], [],
1108 [[input-c-glr.y:1.7: error: %code qualifier 'q' is not used
1109 input-c-glr.y:2.7-9: error: %code qualifier 'bad' is not used
1110 input-c-glr.y:3.8-10: error: %code qualifier 'bad' is not used
1111 ]])
1112
1113 AT_DATA([input-c++.y],
1114 [[%code q {}
1115 %code bad {}
1116  %code q {}
1117 %%
1118 start: ;
1119 ]])
1120 AT_BISON_CHECK([[input-c++.y]], [[1]], [],
1121 [[input-c++.y:1.7: error: %code qualifier 'q' is not used
1122 input-c++.y:2.7-9: error: %code qualifier 'bad' is not used
1123 input-c++.y:3.8: error: %code qualifier 'q' is not used
1124 ]])
1125
1126 AT_DATA([input-c++-glr.y],
1127 [[%code bad {}
1128 %code q {}
1129 %code q {}
1130 %%
1131 start: ;
1132 ]])
1133 AT_BISON_CHECK([[input-c++-glr.y]], [[1]], [],
1134 [[input-c++-glr.y:1.7-9: error: %code qualifier 'bad' is not used
1135 input-c++-glr.y:2.7: error: %code qualifier 'q' is not used
1136 input-c++-glr.y:3.7: error: %code qualifier 'q' is not used
1137 ]])
1138
1139 AT_DATA([special-char-@@.y],
1140 [[%code bad {}
1141 %code q {}
1142 %code q {}
1143 %%
1144 start: ;
1145 ]])
1146 AT_BISON_CHECK([[special-char-@@.y]], [[1]], [],
1147 [[special-char-@@.y:1.7-9: error: %code qualifier 'bad' is not used
1148 special-char-@@.y:2.7: error: %code qualifier 'q' is not used
1149 special-char-@@.y:3.7: error: %code qualifier 'q' is not used
1150 ]])
1151
1152 AT_DATA([special-char-@:>@.y],
1153 [[%code bad {}
1154 %code q {}
1155 %code q {}
1156 %%
1157 start: ;
1158 ]])
1159 AT_BISON_CHECK([[special-char-@:>@.y]], [[1]], [],
1160 [[special-char-@:>@.y:1.7-9: error: %code qualifier 'bad' is not used
1161 special-char-@:>@.y:2.7: error: %code qualifier 'q' is not used
1162 special-char-@:>@.y:3.7: error: %code qualifier 'q' is not used
1163 ]])
1164
1165 AT_CLEANUP
1166
1167
1168 ## ---------------- ##
1169 ## %define errors.  ##
1170 ## ---------------- ##
1171
1172 AT_SETUP([%define errors])
1173
1174 AT_DATA([input-redefined.y],
1175 [[%define var "value1"
1176 %define var "value1"
1177  %define var "value2"
1178 %define special1 "@:>@"
1179 %define special2 "@<:@"
1180 %%
1181 start: ;
1182 ]])
1183
1184 AT_BISON_CHECK([[input-redefined.y]], [[1]], [],
1185 [[input-redefined.y:2.9-11: error: %define variable 'var' redefined
1186 input-redefined.y:1.9-11:     previous definition
1187 input-redefined.y:3.10-12: error: %define variable 'var' redefined
1188 input-redefined.y:2.9-11:      previous definition
1189 ]])
1190
1191 AT_DATA([input-unused.y],
1192 [[%define var "value"
1193 %%
1194 start: ;
1195 ]])
1196
1197 AT_BISON_CHECK([[input-unused.y]], [[1]], [],
1198 [[input-unused.y:1.9-11: error: %define variable 'var' is not used
1199 ]])
1200
1201 AT_CLEANUP
1202
1203
1204 ## ----------------------------------- ##
1205 ## %define, --define, --force-define.  ##
1206 ## ----------------------------------- ##
1207
1208 AT_SETUP([[%define, --define, --force-define]])
1209
1210 AT_DATA([[skel.c]],
1211 [[m4@&t@_divert_push(0)@
1212 @output(b4_parser_file_name@)@
1213 [var-dd: ]b4_percent_define_get([[var-dd]])[
1214 var-ff: ]b4_percent_define_get([[var-ff]])[
1215 var-dfg: ]b4_percent_define_get([[var-dfg]])[
1216 var-fd: ]b4_percent_define_get([[var-fd]])
1217 m4@&t@_divert_pop(0)
1218 ]])
1219 AT_DATA([[input.y]],
1220 [[%define var-dfg "gram"
1221 %%
1222 start: ;
1223 ]])
1224 AT_BISON_CHECK([[-Dvar-dd=cmd-d1 -Dvar-dd=cmd-d2 \
1225                  -Fvar-ff=cmd-f1 -Fvar-ff=cmd-f2 \
1226                  -Dvar-dfg=cmd-d -Fvar-dfg=cmd-f \
1227                  -Fvar-fd=cmd-f -Dvar-fd=cmd-d   \
1228                  --skeleton ./skel.c input.y]])
1229 AT_CHECK([[cat input.tab.c]], [[0]],
1230 [[var-dd: cmd-d2
1231 var-ff: cmd-f2
1232 var-dfg: cmd-f
1233 var-fd: cmd-d
1234 ]])
1235
1236 AT_DATA([[input-dg.y]],
1237 [[%define var "gram"
1238 %%
1239 start: ;
1240 ]])
1241 AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
1242 [[input-dg.y:1.9-11: error: %define variable 'var' redefined
1243 <command line>:1:      previous definition
1244 ]])
1245
1246 AT_DATA([[input-dg.y]],
1247 [[%define var "gram"
1248 %%
1249 start: ;
1250 ]])
1251 AT_BISON_CHECK([[-fcaret -Dvar=cmd-d input-dg.y]], [[1]], [],
1252 [[input-dg.y:1.9-11: error: %define variable 'var' redefined
1253  %define var "gram"
1254          ^^^
1255 <command line>:2:      previous definition
1256 ]])
1257
1258 AT_DATA([[input-unused.y]],
1259 [[%%
1260 start: ;
1261 ]])
1262 AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [],
1263 [[<command line>:1: error: %define variable 'unused-d' is not used
1264 <command line>:2: error: %define variable 'unused-f' is not used
1265 ]])
1266
1267 AT_CLEANUP
1268
1269 ## --------------------------- ##
1270 ## %define Boolean variables.  ##
1271 ## --------------------------- ##
1272
1273 AT_SETUP([[%define Boolean variables]])
1274
1275 AT_DATA([Input.y],
1276 [[%language "Java"
1277 %define public "maybe"
1278 %define parser_class_name "Input"
1279 %%
1280 start: ;
1281 ]])
1282
1283 AT_BISON_CHECK([[Input.y]], [1], [],
1284 [[Input.y:2.9-14: error: invalid value for %define Boolean variable 'public'
1285 ]])
1286
1287 AT_CLEANUP
1288
1289 ## ------------------------ ##
1290 ## %define enum variables.  ##
1291 ## ------------------------ ##
1292
1293 AT_SETUP([[%define enum variables]])
1294
1295 # Front-end.
1296 AT_DATA([[input.y]],
1297 [[%define lr.default-reduction bogus
1298 %%
1299 start: ;
1300 ]])
1301 AT_BISON_CHECK([[input.y]], [[1]], [[]],
1302 [[input.y:1.9-28: error: invalid value for %define variable 'lr.default-reduction': 'bogus'
1303 input.y:1.9-28:     accepted value: 'most'
1304 input.y:1.9-28:     accepted value: 'consistent'
1305 input.y:1.9-28:     accepted value: 'accepting'
1306 ]])
1307
1308 # Back-end.
1309 # FIXME: these should be indented, but we shouldn't mess with the m4 yet
1310 AT_DATA([[input.y]],
1311 [[%define api.push-pull neither
1312 %%
1313 start: ;
1314 ]])
1315 AT_BISON_CHECK([[input.y]], [1], [],
1316 [[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
1317 input.y:1.9-21:     accepted value: 'pull'
1318 input.y:1.9-21:     accepted value: 'push'
1319 input.y:1.9-21:     accepted value: 'both'
1320 ]])
1321
1322 AT_CLEANUP
1323
1324 ## -------------------------------- ##
1325 ## %define backward compatibility.  ##
1326 ## -------------------------------- ##
1327
1328 AT_SETUP([[%define backward compatibility]])
1329
1330 # The error messages tell us whether underscores in these variables are
1331 # being converted to dashes.
1332
1333 AT_DATA([[input.y]],
1334 [[%define api.push_pull "neither"
1335 %%
1336 start: ;
1337 ]])
1338 AT_BISON_CHECK([[input.y]], [1], [],
1339 [[input.y:1.9-21: warning: deprecated %define variable name: 'api.push_pull', use 'api.push-pull' [-Wdeprecated]
1340 input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
1341 input.y:1.9-21:     accepted value: 'pull'
1342 input.y:1.9-21:     accepted value: 'push'
1343 input.y:1.9-21:     accepted value: 'both'
1344 ]])
1345
1346 AT_BISON_CHECK([[-fcaret input.y]], [1], [],
1347 [[input.y:1.9-21: warning: deprecated %define variable name: 'api.push_pull', use 'api.push-pull' [-Wdeprecated]
1348  %define api.push_pull "neither"
1349          ^^^^^^^^^^^^^
1350 input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
1351  %define api.push_pull "neither"
1352          ^^^^^^^^^^^^^
1353 input.y:1.9-21:     accepted value: 'pull'
1354 input.y:1.9-21:     accepted value: 'push'
1355 input.y:1.9-21:     accepted value: 'both'
1356 ]])
1357
1358 AT_DATA([[input.y]],
1359 [[%define lr.keep_unreachable_states maybe
1360 %%
1361 start: ;
1362 ]])
1363 AT_BISON_CHECK([[input.y]], [1], [],
1364 [[input.y:1.9-34: warning: deprecated %define variable name: 'lr.keep_unreachable_states', use 'lr.keep-unreachable-state' [-Wdeprecated]
1365 input.y:1.9-34: error: invalid value for %define Boolean variable 'lr.keep-unreachable-state'
1366 ]])
1367
1368 AT_DATA([[input.y]],
1369 [[%define namespace "foo"
1370 %define api.namespace "foo"
1371 %%
1372 start: ;
1373 ]])
1374 AT_BISON_CHECK([[input.y]], [1], [],
1375 [[input.y:1.9-17: warning: deprecated %define variable name: 'namespace', use 'api.namespace' [-Wdeprecated]
1376 input.y:2.9-21: error: %define variable 'api.namespace' redefined
1377 input.y:1.9-17:     previous definition
1378 ]])
1379
1380 AT_DATA([[input.y]],
1381 [[%define foo_bar "baz"
1382 %%
1383 start: ;
1384 ]])
1385 AT_BISON_CHECK([[input.y]], [[1]], [],
1386 [[input.y:1.9-15: error: %define variable 'foo_bar' is not used
1387 ]])
1388
1389 AT_CLEANUP
1390
1391 ## ------------------------- ##
1392 ## Unused %define api.pure.  ##
1393 ## ------------------------- ##
1394
1395 AT_SETUP([[Unused %define api.pure]])
1396
1397 # AT_CHECK_API_PURE(DECLS, VALUE)
1398 # -------------------------------
1399 # Make sure Bison reports that `%define api.pure VALUE' is unused when DECLS
1400 # are specified.
1401 m4_define([AT_CHECK_API_PURE],
1402 [
1403 AT_DATA([[input.y]],
1404 [[%define api.pure ]$2[
1405 ]$1[
1406 %%
1407 start: ;
1408 ]])
1409
1410 AT_BISON_CHECK([[input.y]], [[1]], [],
1411 [[input.y:1.9-16: error: %define variable 'api.pure' is not used
1412 ]])
1413 ])
1414
1415 AT_CHECK_API_PURE([[%language "c++" %defines]], [[]])
1416 AT_CHECK_API_PURE([[%language "c++" %defines]], [[false]])
1417 AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[""]])
1418 AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[false]])
1419 AT_CHECK_API_PURE([[%language "java"]], [[true]])
1420 AT_CHECK_API_PURE([[%language "java"]], [[false]])
1421
1422 AT_CLEANUP
1423
1424 ## -------------------------------- ##
1425 ## C++ namespace reference errors.  ##
1426 ## -------------------------------- ##
1427
1428 AT_SETUP([[C++ namespace reference errors]])
1429
1430 # AT_CHECK_NAMESPACE_ERROR(NAMESPACE-DECL, ERROR, [ERROR], ...)
1431 # -------------------------------------------------------------
1432 # Make sure Bison reports all ERROR's for %define namespace "NAMESPACE-DECL".
1433 m4_define([AT_CHECK_NAMESPACE_ERROR],
1434 [
1435 AT_DATA([[input.y]],
1436 [[%language "C++"
1437 %defines
1438 %define api.namespace "]$1["
1439 %%
1440 start: ;
1441 ]])
1442
1443 AT_BISON_CHECK([[input.y]], [1], [],
1444 [m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
1445 [[input.y:3.9-21: error: ]b4_arg[
1446 ]])])
1447 ])
1448
1449 AT_CHECK_NAMESPACE_ERROR([[]],
1450                          [[namespace reference is empty]])
1451 AT_CHECK_NAMESPACE_ERROR([[                             ]],
1452                          [[namespace reference is empty]])
1453 AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
1454                          [[namespace reference has consecutive "::"]])
1455 AT_CHECK_NAMESPACE_ERROR([[foo::        ::bar]],
1456                          [[namespace reference has consecutive "::"]])
1457 AT_CHECK_NAMESPACE_ERROR([[::::bar]],
1458                          [[namespace reference has consecutive "::"]])
1459 AT_CHECK_NAMESPACE_ERROR([[:: ::bar]],
1460                          [[namespace reference has consecutive "::"]])
1461 AT_CHECK_NAMESPACE_ERROR([[foo::bar::   ::]],
1462                          [[namespace reference has consecutive "::"]],
1463                          [[namespace reference has a trailing "::"]])
1464 AT_CHECK_NAMESPACE_ERROR([[foo::bar::]],
1465                          [[namespace reference has a trailing "::"]])
1466 AT_CHECK_NAMESPACE_ERROR([[foo::bar::   ]],
1467                          [[namespace reference has a trailing "::"]])
1468 AT_CHECK_NAMESPACE_ERROR([[::]],
1469                          [[namespace reference has a trailing "::"]])
1470
1471 AT_CLEANUP
1472
1473 ## ------------------------ ##
1474 ## Bad character literals.  ##
1475 ## ------------------------ ##
1476
1477 # Bison used to accept character literals that were empty or contained
1478 # too many characters.
1479
1480 # FIXME: AT_DATA or some variant of AT_DATA may eventually permit
1481 # the final newline to be omitted.  See the threads starting at
1482 # <http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00019.html>.
1483
1484 AT_SETUP([[Bad character literals]])
1485
1486 AT_DATA([empty.y],
1487 [[%%
1488 start: '';
1489 start: '
1490 ]])
1491 AT_CHECK([[$PERL -e "print 'start: \'';" >> empty.y || exit 77]])
1492
1493 AT_BISON_CHECK([empty.y], [1], [],
1494 [[empty.y:2.8-9: warning: empty character literal [-Wother]
1495 empty.y:3.8-4.0: warning: empty character literal [-Wother]
1496 empty.y:3.8-4.0: error: missing "'" at end of line
1497 empty.y:4.8: warning: empty character literal [-Wother]
1498 empty.y:4.8: error: missing "'" at end of file
1499 ]])
1500
1501 AT_DATA([two.y],
1502 [[%%
1503 start: 'ab';
1504 start: 'ab
1505 ]])
1506 AT_CHECK([[$PERL -e "print 'start: \'ab';" >> two.y || exit 77]])
1507
1508 AT_BISON_CHECK([two.y], [1], [],
1509 [[two.y:2.8-11: warning: extra characters in character literal [-Wother]
1510 two.y:3.8-4.0: warning: extra characters in character literal [-Wother]
1511 two.y:3.8-4.0: error: missing "'" at end of line
1512 two.y:4.8-10: warning: extra characters in character literal [-Wother]
1513 two.y:4.8-10: error: missing "'" at end of file
1514 ]])
1515
1516 AT_DATA([three.y],
1517 [[%%
1518 start: 'abc';
1519 start: 'abc
1520 ]])
1521 AT_CHECK([[$PERL -e "print 'start: \'abc';" >> three.y || exit 77]])
1522
1523 AT_BISON_CHECK([three.y], [1], [],
1524 [[three.y:2.8-12: warning: extra characters in character literal [-Wother]
1525 three.y:3.8-4.0: warning: extra characters in character literal [-Wother]
1526 three.y:3.8-4.0: error: missing "'" at end of line
1527 three.y:4.8-11: warning: extra characters in character literal [-Wother]
1528 three.y:4.8-11: error: missing "'" at end of file
1529 ]])
1530
1531 AT_CLEANUP
1532
1533 ## ------------------------- ##
1534 ## Bad escapes in literals.  ##
1535 ## ------------------------- ##
1536
1537 AT_SETUP([[Bad escapes in literals]])
1538
1539 AT_DATA([input.y],
1540 [[%%
1541 start: '\777' '\0' '\xfff' '\x0'
1542        '\uffff' '\u0000' '\Uffffffff' '\U00000000'
1543        '\ ' '\A';
1544 ]])
1545
1546 # It is not easy to create special characters, we cannot even trust tr.
1547 # Beside we cannot even expect "echo '\0'" to output two characters
1548 # (well three with \n): at least Bash 3.2 converts the two-character
1549 # sequence "\0" into a single NUL character.
1550 AT_CHECK([[$PERL -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
1551            || exit 77]])
1552
1553 AT_BISON_CHECK([input.y], [1], [],
1554 [[input.y:2.9-12: error: invalid number after \-escape: 777
1555 input.y:2.8-13: warning: empty character literal [-Wother]
1556 input.y:2.16-17: error: invalid number after \-escape: 0
1557 input.y:2.15-18: warning: empty character literal [-Wother]
1558 input.y:2.21-25: error: invalid number after \-escape: xfff
1559 input.y:2.20-26: warning: empty character literal [-Wother]
1560 input.y:2.29-31: error: invalid number after \-escape: x0
1561 input.y:2.28-32: warning: empty character literal [-Wother]
1562 input.y:3.9-14: error: invalid number after \-escape: uffff
1563 input.y:3.8-15: warning: empty character literal [-Wother]
1564 input.y:3.18-23: error: invalid number after \-escape: u0000
1565 input.y:3.17-24: warning: empty character literal [-Wother]
1566 input.y:3.27-36: error: invalid number after \-escape: Uffffffff
1567 input.y:3.26-37: warning: empty character literal [-Wother]
1568 input.y:3.40-49: error: invalid number after \-escape: U00000000
1569 input.y:3.39-50: warning: empty character literal [-Wother]
1570 input.y:4.9-10: error: invalid character after \-escape: ' '
1571 input.y:4.8-11: warning: empty character literal [-Wother]
1572 input.y:4.14-15: error: invalid character after \-escape: A
1573 input.y:4.13-16: warning: empty character literal [-Wother]
1574 input.y:5.9-16: error: invalid character after \-escape: \t
1575 input.y:5.17: error: invalid character after \-escape: \f
1576 input.y:5.18: error: invalid character after \-escape: \0
1577 input.y:5.19: error: invalid character after \-escape: \001
1578 ]])
1579
1580 AT_CLEANUP
1581
1582 ## ------------------------- ##
1583 ## LAC: Errors for %define.  ##
1584 ## ------------------------- ##
1585
1586 AT_SETUP([[LAC: Errors for %define]])
1587
1588 AT_DATA([[input.y]],
1589 [[%%
1590 start: ;
1591 ]])
1592
1593 # parse.lac.* options are useless if LAC isn't actually activated.
1594 AT_BISON_CHECK([[-Dparse.lac.es-capacity-initial=1 input.y]],
1595                [[1]], [],
1596 [[<command line>:1: error: %define variable 'parse.lac.es-capacity-initial' is not used
1597 ]])
1598 AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]],
1599                [[1]], [],
1600 [[<command line>:1: error: %define variable 'parse.lac.memory-trace' is not used
1601 ]])
1602
1603 AT_CLEANUP
1604
1605 ## --------------------------------------------- ##
1606 ## -Werror is not affected by -Wnone and -Wall.  ##
1607 ## --------------------------------------------- ##
1608
1609 AT_SETUP([[-Werror is not affected by -Wnone and -Wall]])
1610
1611 AT_DATA([[input.y]],
1612 [[%%
1613 foo-bar: ;
1614 ]])
1615
1616 # -Werror is not enabled by -Wall or equivalent.
1617 AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
1618 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1619 ]])
1620 AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
1621 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1622 ]])
1623 AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
1624 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1625 ]])
1626
1627 # -Werror is not disabled by -Wnone or equivalent.
1628 AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
1629 AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],
1630 [[input.y:2.1-7: error: POSIX Yacc forbids dashes in symbol names: foo-bar [-Werror=yacc]
1631 ]])
1632 [mv stderr experr]
1633 AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])
1634
1635 AT_CLEANUP
1636
1637
1638 ## ------------------------------------------------------ ##
1639 ## %name-prefix and %define api.prefix are incompatible.  ##
1640 ## ------------------------------------------------------ ##
1641
1642 AT_SETUP([[%name-prefix and %define api.prefix are incompatible]])
1643
1644 # AT_TEST(DIRECTIVES, OPTIONS, ERROR-LOCATION)
1645 # --------------------------------------------
1646 m4_pushdef([AT_TEST],
1647 [AT_DATA([[input.y]],
1648 [[$1
1649 %%
1650 exp:;
1651 ]])
1652 AT_BISON_CHECK([[$2 input.y]], [[1]], [[]],
1653 [[$3: error: '%name-prefix' and '%define api.prefix' cannot be used together
1654 ]])
1655 ])
1656
1657 AT_TEST([%define api.prefix foo %name-prefix "bar"], [], [input.y:1.9-18])
1658 AT_TEST([], [-Dapi.prefix=foo -p bar], [<command line>:1])
1659 AT_TEST([%name-prefix "bar"], [-Dapi.prefix=foo], [<command line>:1])
1660 AT_TEST([%define api.prefix foo], [-p bar], [input.y:1.9-18])
1661
1662 m4_popdef([AT_TEST])
1663
1664 AT_CLEANUP
1665
1666
1667 ## -------------- ##
1668 ## Stray $ or @.  ##
1669 ## -------------- ##
1670
1671 AT_SETUP([[Stray $ or @]])
1672
1673 # Give %printer and %destructor "<*> exp TOK" instead of "<*>" to
1674 # check that the warnings are reported once, not three times.
1675
1676 AT_DATA_GRAMMAR([[input.y]],
1677 [[%type <TYPE> exp
1678 %token <TYPE> TOK TOK2
1679 %destructor     { $%; @%; } <*> exp TOK;
1680 %initial-action { $%; @%; };
1681 %printer        { $%; @%; } <*> exp TOK;
1682 %%
1683 exp: TOK        { $%; @%; $$ = $1; };
1684 ]])
1685
1686 AT_BISON_CHECK([[input.y]], 0, [],
1687 [[input.y:11.19: warning: stray '$' [-Wother]
1688 input.y:11.23: warning: stray '@' [-Wother]
1689 input.y:12.19: warning: stray '$' [-Wother]
1690 input.y:12.23: warning: stray '@' [-Wother]
1691 input.y:13.19: warning: stray '$' [-Wother]
1692 input.y:13.23: warning: stray '@' [-Wother]
1693 input.y:15.19: warning: stray '$' [-Wother]
1694 input.y:15.23: warning: stray '@' [-Wother]
1695 ]])
1696
1697 AT_CLEANUP
1698
1699
1700
1701 ## ---------------- ##
1702 ## Code injection.  ##
1703 ## ---------------- ##
1704
1705
1706 AT_SETUP([[Code injection]])
1707
1708 m4_pattern_allow([^m4_errprintn$])
1709
1710 # AT_TEST([MACRO])
1711 # ----------------
1712 # Try to have MACRO be run by bison.
1713 m4_pushdef([AT_TEST],
1714 [AT_DATA([[input.y]],
1715 [[%type <$1(DEAD %type)> exp
1716 %token <$1(DEAD %token)> a
1717 %token b
1718 %initial-action
1719 {
1720   $$;
1721   $<$1(DEAD %initial-action)>$
1722 };
1723 %printer
1724 {
1725   $$
1726   $<$1(DEAD %printer)>$
1727 } <> <*>;
1728 %lex-param
1729 {
1730   $1(DEAD %lex-param)
1731 };
1732 %parse-param
1733 {
1734   $1(DEAD %parse-param)
1735 };
1736 %%
1737 exp:
1738   a a[name] b
1739   {
1740     $$;
1741     $][1;
1742     $<$1(DEAD action 1)>$
1743     $<$1(DEAD action 2)>1
1744     $<$1(DEAD action 3)>name
1745     $<$1(DEAD action 4)>0
1746     ;
1747   };
1748 ]])
1749
1750 # FIXME: Provide a means to iterate over all the skeletons.
1751 AT_BISON_CHECK([[-d               input.y]])
1752 AT_BISON_CHECK([[-d -S glr.c      input.y]])
1753 AT_BISON_CHECK([[-d -S lalr1.cc   input.y]])
1754 AT_BISON_CHECK([[-d -S glr.cc     input.y]])
1755 AT_BISON_CHECK([[   -S lalr1.java input.y]])
1756 ])
1757
1758 AT_TEST([m4_errprintn])
1759 AT_TEST([@:>@m4_errprintn])
1760
1761 m4_popdef([AT_TEST])
1762
1763 AT_CLEANUP
1764
1765 ##----------------------- ##
1766 ## Deprecated directives. ##
1767 ## ---------------------- ##
1768
1769 AT_SETUP([[Deprecated directives]])
1770
1771 AT_KEYWORDS([[deprec]])
1772
1773 AT_DATA_GRAMMAR([[input.y]],
1774 [[
1775 %default_prec
1776 %error_verbose
1777 %expect_rr 0
1778 %file-prefix = "foo"
1779 %file-prefix
1780  =
1781 "bar"
1782 %fixed-output_files
1783 %fixed_output-files
1784 %fixed-output-files
1785 %name-prefix= "foo"
1786 %no-default_prec
1787 %no_default-prec
1788 %no_lines
1789 %output = "foo"
1790 %pure_parser
1791 %token_table
1792 %glr-parser
1793 %% exp : '0'
1794 ]])
1795
1796 AT_BISON_CHECK([[input.y]], [[0]], [[]],
1797 [[input.y:10.1-13: warning: deprecated directive: '%default_prec', use '%default-prec' [-Wdeprecated]
1798 input.y:11.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1799 input.y:12.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1800 input.y:13.1-14: warning: deprecated directive: '%file-prefix =', use '%file-prefix' [-Wdeprecated]
1801 input.y:14.1-15.2: warning: deprecated directive: '%file-prefix\n =', use '%file-prefix' [-Wdeprecated]
1802 input.y:17.1-19: warning: deprecated directive: '%fixed-output_files', use '%fixed-output-files' [-Wdeprecated]
1803 input.y:18.1-19: warning: deprecated directive: '%fixed_output-files', use '%fixed-output-files' [-Wdeprecated]
1804 input.y:20.1-13: warning: deprecated directive: '%name-prefix=', use '%name-prefix' [-Wdeprecated]
1805 input.y:21.1-16: warning: deprecated directive: '%no-default_prec', use '%no-default-prec' [-Wdeprecated]
1806 input.y:22.1-16: warning: deprecated directive: '%no_default-prec', use '%no-default-prec' [-Wdeprecated]
1807 input.y:23.1-9: warning: deprecated directive: '%no_lines', use '%no-lines' [-Wdeprecated]
1808 input.y:24.1-9: warning: deprecated directive: '%output =', use '%output' [-Wdeprecated]
1809 input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%pure-parser' [-Wdeprecated]
1810 input.y:26.1-12: warning: deprecated directive: '%token_table', use '%token-table' [-Wdeprecated]
1811 ]])
1812
1813 AT_CLEANUP
1814
1815 ## ---------------------------- ##
1816 ## Unput's effect on locations. ##
1817 ## ---------------------------- ##
1818 dnl When the scanner detects a deprecated construct, it unputs the correct
1819 dnl version, but it should *not* have any impact on the scanner cursor. If it
1820 dnl does, the locations of directives on the same line become erroneous.
1821
1822 AT_SETUP([[Unput's effect on locations]])
1823
1824 AT_KEYWORDS([[deprec]])
1825
1826 AT_DATA_GRAMMAR([[input.y]],
1827 [[
1828 %glr-parser
1829 %expect_rr 42 %expect_rr 42
1830               %expect_rr 42
1831 %error_verbose %error_verbose
1832                %error_verbose
1833 %% exp: '0'
1834 ]])
1835
1836 AT_BISON_CHECK([[input.y]], [[1]], [[]],
1837 [[input.y:11.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1838 input.y:11.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1839 input.y:12.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1840 input.y:13.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1841 input.y:13.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1842 input.y:13.11-21: error: %define variable 'parse.error' redefined
1843 input.y:13-6:         previous definition
1844 input.y:14.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1845 input.y:14.11-21: error: %define variable 'parse.error' redefined
1846 input.y:13.11-21:     previous definition
1847 ]])
1848
1849 AT_CLEANUP
1850
1851 ##--------------------------- ##
1852 ## Non-deprecated directives. ##
1853 ## -------------------------- ##
1854
1855 AT_SETUP([[Non-deprecated directives]])
1856
1857 AT_KEYWORDS([[deprec]])
1858
1859 AT_DATA_GRAMMAR([[input.y]],
1860 [[
1861 %default-prec
1862 %error-verbose
1863 %expect-rr 42
1864 %file-prefix "foo"
1865 %file-prefix
1866 "bar"
1867 %fixed-output-files
1868 %name-prefix "foo"
1869 %no-default-prec
1870 %no-lines
1871 %output "foo"
1872 %pure-parser
1873 %token-table
1874 %% exp : '0'
1875 ]])
1876
1877 AT_BISON_CHECK([[input.y]], [[0]], [[]],
1878 [[input.y: warning: %expect-rr applies only to GLR parsers [-Wother]
1879 ]])
1880
1881 AT_CLEANUP