tests/input.at

   1 # Checking the Bison scanner.                    -*- Autotest -*-
   2
   3 # Copyright (C) 2002-2013 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: { $$ = $1 ; };
  89 exp: { @$ = @1 ; };
  90 ]])
  91
  92 AT_BISON_CHECK([-fcaret input.y], [1], [],
  93 [[input.y:2.13-14: error: integer out of range: '$1'
  94  exp: { $$ = $1 ; };
  95              ^^
  96 input.y:3.13-14: error: integer out of range: '@1'
  97  exp: { @$ = @1 ; };
  98              ^^
  99 ]])
 100
 101 AT_CLEANUP
 102
 103
 104 ## -------------- ##
 105 ## Type Clashes.  ##
 106 ## -------------- ##
 107
 108 AT_SETUP([Type Clashes])
 109
 110 AT_DATA([input.y],
 111 [[%union { int bar; }
 112 %token foo
 113 %type <bar> exp
 114 %%
 115 exp: foo { $$; } foo { $2; } foo
 116    | foo
 117    | /* Empty. */
 118    ;
 119 ]])
 120
 121 AT_BISON_CHECK([-fcaret input.y], [1], [],
 122 [[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type
 123  exp: foo { $$; } foo { $2; } foo
 124             ^^
 125 input.y:5.24-25: error: $2 of 'exp' has no declared type
 126  exp: foo { $$; } foo { $2; } foo
 127                         ^^
 128 input.y:5.6-32: warning: type clash on default action: <bar> != <> [-Wother]
 129  exp: foo { $$; } foo { $2; } foo
 130       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 131 input.y:6.6-8: warning: type clash on default action: <bar> != <> [-Wother]
 132     | foo
 133       ^^^
 134 input.y:7.5: warning: empty rule for typed nonterminal, and no action [-Wother]
 135     | /* Empty. */
 136      ^
 137 ]])
 138
 139 AT_CLEANUP
 140
 141
 142 # _AT_UNUSED_VALUES_DECLARATIONS()
 143 # --------------------------------
 144 # Generate the token, type, and destructor
 145 # declarations for the unused values tests.
 146 m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 147 [[[%token <integer> INT;
 148 %type <integer> a b c d e f g h i j k l;
 149 %destructor { destroy ($$); } INT a b c d e f g h i j k l;]]])
 150
 151
 152 # AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
 153 # ----------------------------------------------------------------
 154 # Generate a grammar to test unused values, compile it, run it.  If
 155 # DECLARATIONS_AFTER is set, then the token, type, and destructor
 156 # declarations are generated after the rules rather than before.  If
 157 # CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set.
 158 m4_define([AT_CHECK_UNUSED_VALUES],
 159 [AT_DATA([input.y],
 160 m4_ifval($1, [
 161
 162
 163 ], [_AT_UNUSED_VALUES_DECLARATIONS
 164 ])[[%%
 165 start:
 166   'a' a { $]2[; } | 'b' b { $]2[; } | 'c' c { $]2[; } | 'd' d { $]2[; }
 167 | 'e' e { $]2[; } | 'f' f { $]2[; } | 'g' g { $]2[; } | 'h' h { $]2[; }
 168 | 'i' i { $]2[; } | 'j' j { $]2[; } | 'k' k { $]2[; } | 'l' l { $]2[; }
 169 ;
 170
 171 a: INT | INT { } INT { } INT { };
 172 b: INT | /* empty */;
 173 c: INT | INT { $]1[; } INT { $<integer>2; } INT { $<integer>4; };
 174 d: INT | INT { } INT { $]1[; } INT { $<integer>2; };
 175 e: INT | INT { } INT {  } INT { $]1[; };
 176 f: INT | INT { } INT {  } INT { $]$[ = $]1[ + $]3[ + $]5[; };
 177 g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 178 h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 179 i: INT | INT INT { } { $]$[ = $]1[ + $]2[; };
 180 j: INT | INT INT { $<integer>$ = 1; } { $]$[ = $]1[ + $]2[; };
 181 k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 182 l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };]]m4_ifval($1, [
 183 _AT_UNUSED_VALUES_DECLARATIONS])
 184 )
 185
 186 AT_BISON_CHECK(m4_ifval($2, [--warnings=midrule-values ])[-fcaret input.y],
 187                [0], [],
 188 [[input.y:11.10-32: warning: unset value: $][$ [-Wother]
 189  a: INT | INT { } INT { } INT { };
 190           ^^^^^^^^^^^^^^^^^^^^^^^
 191 input.y:11.10-12: warning: unused value: $][1 [-Wother]
 192  a: INT | INT { } INT { } INT { };
 193           ^^^
 194 input.y:11.18-20: warning: unused value: $][3 [-Wother]
 195  a: INT | INT { } INT { } INT { };
 196                   ^^^
 197 input.y:11.26-28: warning: unused value: $][5 [-Wother]
 198  a: INT | INT { } INT { } INT { };
 199                           ^^^
 200 input.y:12.9: warning: empty rule for typed nonterminal, and no action [-Wother]
 201  b: INT | /* empty */;
 202          ^
 203 ]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $][$ [-Wmidrule-values]
 204  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 205               ^^^^^^^
 206 input.y:13.26-41: warning: unset value: $][$ [-Wmidrule-values]
 207  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 208                           ^^^^^^^^^^^^^^^^
 209 ]]])[[input.y:13.10-62: warning: unset value: $][$ [-Wother]
 210  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 211           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 212 input.y:13.22-24: warning: unused value: $][3 [-Wother]
 213  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 214                       ^^^
 215 input.y:13.43-45: warning: unused value: $][5 [-Wother]
 216  c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
 217                                            ^^^
 218 ]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $][$ [-Wmidrule-values]
 219  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 220               ^^^
 221 ]]])[[input.y:14.10-49: warning: unset value: $][$ [-Wother]
 222  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 223           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 224 input.y:14.18-20: warning: unused value: $][3 [-Wother]
 225  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 226                   ^^^
 227 input.y:14.30-32: warning: unused value: $][5 [-Wother]
 228  d: INT | INT { } INT { $][1; } INT { $<integer>2; };
 229                               ^^^
 230 input.y:15.10-37: warning: unset value: $][$ [-Wother]
 231  e: INT | INT { } INT {  } INT { $][1; };
 232           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 233 input.y:15.18-20: warning: unused value: $][3 [-Wother]
 234  e: INT | INT { } INT {  } INT { $][1; };
 235                   ^^^
 236 input.y:15.27-29: warning: unused value: $][5 [-Wother]
 237  e: INT | INT { } INT {  } INT { $][1; };
 238                            ^^^
 239 input.y:17.10-58: warning: unset value: $][$ [-Wother]
 240  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 241           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 242 input.y:17.10-12: warning: unused value: $][1 [-Wother]
 243  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 244           ^^^
 245 ]]m4_ifval($2, [[[input.y:17.14-29: warning: unused value: $][2 [-Wmidrule-values]
 246  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 247               ^^^^^^^^^^^^^^^^
 248 ]]])[[input.y:17.31-33: warning: unused value: $][3 [-Wother]
 249  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 250                                ^^^
 251 ]]m4_ifval($2, [[[input.y:17.35-50: warning: unused value: $][4 [-Wmidrule-values]
 252  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 253                                    ^^^^^^^^^^^^^^^^
 254 ]]])[[input.y:17.52-54: warning: unused value: $][5 [-Wother]
 255  g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 256                                                     ^^^
 257 input.y:18.10-72: warning: unset value: $][$ [-Wother]
 258  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 259           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 260 input.y:18.10-12: warning: unused value: $][1 [-Wother]
 261  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 262           ^^^
 263 input.y:18.31-33: warning: unused value: $][3 [-Wother]
 264  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 265                                ^^^
 266 ]]m4_ifval($2, [[[input.y:18.35-64: warning: unused value: $][4 [-Wmidrule-values]
 267  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 268                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 269 ]]])[[input.y:18.66-68: warning: unused value: $][5 [-Wother]
 270  h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 271                                                                   ^^^
 272 ]]m4_ifval($2, [[[input.y:20.18-37: warning: unused value: $][3 [-Wmidrule-values]
 273  j: INT | INT INT { $<integer>$ = 1; } { $][$ = $][1 + $][2; };
 274                   ^^^^^^^^^^^^^^^^^^^^
 275 ]]])[[input.y:21.10-68: warning: unset value: $][$ [-Wother]
 276  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 277           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 278 input.y:21.10-12: warning: unused value: $][1 [-Wother]
 279  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 280           ^^^
 281 input.y:21.14-16: warning: unused value: $][2 [-Wother]
 282  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 283               ^^^
 284 ]]m4_ifval($2, [[[input.y:21.35-64: warning: unused value: $][4 [-Wmidrule-values]
 285  k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
 286                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 287 ]]]))
 288 ])
 289
 290 ## --------------- ##
 291 ## Unused values.  ##
 292 ## --------------- ##
 293
 294 AT_SETUP([Unused values])
 295 AT_CHECK_UNUSED_VALUES
 296 AT_CHECK_UNUSED_VALUES(, [1])
 297 AT_CLEANUP
 298
 299
 300 ## ------------------------------------------ ##
 301 ## Unused values before symbol declarations.  ##
 302 ## ------------------------------------------ ##
 303
 304 AT_SETUP([Unused values before symbol declarations])
 305 AT_CHECK_UNUSED_VALUES([1])
 306 AT_CHECK_UNUSED_VALUES([1], [1])
 307 AT_CLEANUP
 308
 309
 310 ## --------------------------------------------- ##
 311 ## Default %printer and %destructor redeclared.  ##
 312 ## --------------------------------------------- ##
 313
 314 AT_SETUP([Default %printer and %destructor redeclared])
 315
 316 AT_DATA([[input.y]],
 317 [[%destructor { destroy ($$); } <*> <*>
 318 %printer { print ($$); } <*> <*>
 319
 320 %destructor { destroy ($$); } <*>
 321 %printer { print ($$); } <*>
 322
 323 %destructor { destroy ($$); } <> <>
 324 %printer { print ($$); } <> <>
 325
 326 %destructor { destroy ($$); } <>
 327 %printer { print ($$); } <>
 328
 329 %%
 330
 331 start: ;
 332
 333 %destructor { destroy ($$); } <*>;
 334 %printer { print ($$); } <*>;
 335
 336 %destructor { destroy ($$); } <>;
 337 %printer { print ($$); } <>;
 338 ]])
 339
 340 AT_BISON_CHECK([-fcaret input.y], [1], [],
 341 [[input.y:1.13-29: error: %destructor redeclaration for <*>
 342  %destructor { destroy ($$); } <*> <*>
 343              ^^^^^^^^^^^^^^^^^
 344 input.y:1.13-29:     previous declaration
 345  %destructor { destroy ($$); } <*> <*>
 346              ^^^^^^^^^^^^^^^^^
 347 input.y:2.10-24: error: %printer redeclaration for <*>
 348  %printer { print ($$); } <*> <*>
 349           ^^^^^^^^^^^^^^^
 350 input.y:2.10-24:     previous declaration
 351  %printer { print ($$); } <*> <*>
 352           ^^^^^^^^^^^^^^^
 353 input.y:4.13-29: error: %destructor redeclaration for <*>
 354  %destructor { destroy ($$); } <*>
 355              ^^^^^^^^^^^^^^^^^
 356 input.y:1.13-29:     previous declaration
 357  %destructor { destroy ($$); } <*> <*>
 358              ^^^^^^^^^^^^^^^^^
 359 input.y:5.10-24: error: %printer redeclaration for <*>
 360  %printer { print ($$); } <*>
 361           ^^^^^^^^^^^^^^^
 362 input.y:2.10-24:     previous declaration
 363  %printer { print ($$); } <*> <*>
 364           ^^^^^^^^^^^^^^^
 365 input.y:7.13-29: error: %destructor redeclaration for <>
 366  %destructor { destroy ($$); } <> <>
 367              ^^^^^^^^^^^^^^^^^
 368 input.y:7.13-29:     previous declaration
 369  %destructor { destroy ($$); } <> <>
 370              ^^^^^^^^^^^^^^^^^
 371 input.y:8.10-24: error: %printer redeclaration for <>
 372  %printer { print ($$); } <> <>
 373           ^^^^^^^^^^^^^^^
 374 input.y:8.10-24:     previous declaration
 375  %printer { print ($$); } <> <>
 376           ^^^^^^^^^^^^^^^
 377 input.y:10.13-29: error: %destructor redeclaration for <>
 378  %destructor { destroy ($$); } <>
 379              ^^^^^^^^^^^^^^^^^
 380 input.y:7.13-29:      previous declaration
 381  %destructor { destroy ($$); } <> <>
 382              ^^^^^^^^^^^^^^^^^
 383 input.y:11.10-24: error: %printer redeclaration for <>
 384  %printer { print ($$); } <>
 385           ^^^^^^^^^^^^^^^
 386 input.y:8.10-24:      previous declaration
 387  %printer { print ($$); } <> <>
 388           ^^^^^^^^^^^^^^^
 389 input.y:17.13-29: error: %destructor redeclaration for <*>
 390  %destructor { destroy ($$); } <*>;
 391              ^^^^^^^^^^^^^^^^^
 392 input.y:4.13-29:      previous declaration
 393  %destructor { destroy ($$); } <*>
 394              ^^^^^^^^^^^^^^^^^
 395 input.y:18.10-24: error: %printer redeclaration for <*>
 396  %printer { print ($$); } <*>;
 397           ^^^^^^^^^^^^^^^
 398 input.y:5.10-24:      previous declaration
 399  %printer { print ($$); } <*>
 400           ^^^^^^^^^^^^^^^
 401 input.y:20.13-29: error: %destructor redeclaration for <>
 402  %destructor { destroy ($$); } <>;
 403              ^^^^^^^^^^^^^^^^^
 404 input.y:10.13-29:     previous declaration
 405  %destructor { destroy ($$); } <>
 406              ^^^^^^^^^^^^^^^^^
 407 input.y:21.10-24: error: %printer redeclaration for <>
 408  %printer { print ($$); } <>;
 409           ^^^^^^^^^^^^^^^
 410 input.y:11.10-24:     previous declaration
 411  %printer { print ($$); } <>
 412           ^^^^^^^^^^^^^^^
 413 ]])
 414
 415 AT_CLEANUP
 416
 417
 418 ## ---------------------------------------------- ##
 419 ## Per-type %printer and %destructor redeclared.  ##
 420 ## ---------------------------------------------- ##
 421
 422 AT_SETUP([Per-type %printer and %destructor redeclared])
 423
 424 AT_DATA([[input.y]],
 425 [[%destructor { destroy ($$); } <field1> <field2>
 426 %printer { print ($$); } <field1> <field2>
 427
 428 %destructor { destroy ($$); } <field1> <field1>
 429 %printer { print ($$); } <field2> <field2>
 430
 431 %%
 432
 433 start: ;
 434
 435 %destructor { destroy ($$); } <field2> <field1>;
 436 %printer { print ($$); } <field2> <field1>;
 437 ]])
 438
 439 AT_BISON_CHECK([input.y], [1], [],
 440 [[input.y:4.13-29: error: %destructor redeclaration for <field1>
 441 input.y:1.13-29:     previous declaration
 442 input.y:4.13-29: error: %destructor redeclaration for <field1>
 443 input.y:4.13-29:     previous declaration
 444 input.y:5.10-24: error: %printer redeclaration for <field2>
 445 input.y:2.10-24:     previous declaration
 446 input.y:5.10-24: error: %printer redeclaration for <field2>
 447 input.y:5.10-24:     previous declaration
 448 input.y:11.13-29: error: %destructor redeclaration for <field1>
 449 input.y:4.13-29:      previous declaration
 450 input.y:11.13-29: error: %destructor redeclaration for <field2>
 451 input.y:1.13-29:      previous declaration
 452 input.y:12.10-24: error: %printer redeclaration for <field1>
 453 input.y:2.10-24:      previous declaration
 454 input.y:12.10-24: error: %printer redeclaration for <field2>
 455 input.y:5.10-24:      previous declaration
 456 ]])
 457
 458 AT_CLEANUP
 459
 460 ## ------------------- ##
 461 ## Undefined symbols.  ##
 462 ## ------------------- ##
 463
 464 AT_SETUP([Undefined symbols])
 465
 466 AT_DATA([[input.y]],
 467 [[%printer {} foo baz
 468 %destructor {} bar
 469 %type <foo> qux
 470 %%
 471 exp: bar;
 472 ]])
 473
 474 AT_BISON_CHECK([-fcaret input.y], [1], [],
 475 [[input.y:2.16-18: error: symbol bar is used, but is not defined as a token and has no rules
 476  %destructor {} bar
 477                 ^^^
 478 input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules [-Wother]
 479  %printer {} foo baz
 480                  ^^^
 481 input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules [-Wother]
 482  %printer {} foo baz
 483              ^^^
 484 input.y:3.13-15: warning: symbol qux is used, but is not defined as a token and has no rules [-Wother]
 485  %type <foo> qux
 486              ^^^
 487 ]])
 488
 489 AT_CLEANUP
 490
 491
 492 ## ----------------------------------------------------- ##
 493 ## Unassociated types used for a printer or destructor.  ##
 494 ## ----------------------------------------------------- ##
 495
 496 AT_SETUP([Unassociated types used for a printer or destructor])
 497
 498 AT_DATA([[input.y]],
 499 [[%token <type1> tag1
 500 %type <type2> tag2
 501
 502 %printer { } <type1> <type3>
 503 %destructor { } <type2> <type4>
 504
 505 %%
 506
 507 exp: tag1 { $1; }
 508    | tag2 { $1; }
 509
 510 tag2: "a" { $$; }
 511 ]])
 512
 513 AT_BISON_CHECK([input.y], [0], [],
 514 [[input.y:4.22-28: warning: type <type3> is used, but is not associated to any symbol [-Wother]
 515 input.y:5.25-31: warning: type <type4> is used, but is not associated to any symbol [-Wother]
 516 ]])
 517
 518 AT_CLEANUP
 519
 520
 521 ## --------------------------------- ##
 522 ## Useless printers or destructors.  ##
 523 ## --------------------------------- ##
 524
 525 AT_SETUP([Useless printers or destructors])
 526
 527 # AT_TEST([INPUT], [STDERR])
 528 # --------------------------
 529 m4_pushdef([AT_TEST],
 530 [AT_DATA([[input.y]],
 531 [$1
 532 ])
 533 AT_BISON_CHECK([input.y], [0], [], [$2
 534 ])])
 535
 536 AT_TEST([[%token <type1> token1
 537 %token <type2> token2
 538 %token <type3> token3
 539 %token <type4> token4
 540 %token <type5> token51 token52
 541 %token <type6> token61 token62
 542 %token <type7> token7
 543
 544 %printer {} token1
 545 %destructor {} token2
 546 %printer {} token51
 547 %destructor {} token61
 548
 549 %printer {} token7
 550
 551 %printer {} <type1>
 552 %destructor {} <type2>
 553 %printer {} <type3>
 554 %destructor {} <type4>
 555
 556 %printer {} <type5>
 557 %destructor {} <type6>
 558
 559 %destructor {} <type7>
 560
 561 %%
 562 exp: "a";]],
 563 [[input.y:16.13-19: warning: useless %printer for type <type1> [-Wother]
 564 input.y:17.16-22: warning: useless %destructor for type <type2> [-Wother]]])
 565
 566 # If everybody is typed, <> is useless.
 567 AT_TEST([[%type <type> exp
 568 %token <type> a
 569 %printer {} <> <*>
 570 %%
 571 exp: a;]],
 572 [[input.y:3.13-14: warning: useless %printer for type <> [-Wother]]])
 573
 574 # If nobody is typed, <*> is useless.
 575 AT_TEST([[%token a
 576 %printer {} <> <*>
 577 %%
 578 exp: a;]],
 579 [[input.y:2.16-18: warning: useless %printer for type <*> [-Wother]]])
 580
 581 m4_popdef([AT_TEST])
 582
 583 AT_CLEANUP
 584
 585
 586 ## ---------------------------------------- ##
 587 ## Unused values with default %destructor.  ##
 588 ## ---------------------------------------- ##
 589
 590 AT_SETUP([Unused values with default %destructor])
 591
 592 AT_DATA([[input.y]],
 593 [[%destructor { destroy ($$); } <>
 594 %type <tag> tagged
 595
 596 %%
 597
 598 start: end end tagged tagged { $<tag>1; $3; } ;
 599 end: { } ;
 600 tagged: { } ;
 601 ]])
 602
 603 AT_BISON_CHECK([-fcaret input.y], [0], [],
 604 [[input.y:6.8-45: warning: unset value: $$ [-Wother]
 605  start: end end tagged tagged { $<tag>1; $3; } ;
 606         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 607 input.y:6.12-14: warning: unused value: $2 [-Wother]
 608  start: end end tagged tagged { $<tag>1; $3; } ;
 609             ^^^
 610 input.y:7.6-8: warning: unset value: $$ [-Wother]
 611  end: { } ;
 612       ^^^
 613 ]])
 614
 615 AT_DATA([[input.y]],
 616 [[%destructor { destroy ($$); } <*>
 617 %type <tag> tagged
 618
 619 %%
 620
 621 start: end end tagged tagged { $<tag>1; $3; } ;
 622 end: { } ;
 623 tagged: { } ;
 624 ]])
 625
 626 AT_BISON_CHECK([input.y], [0], [],
 627 [[input.y:6.23-28: warning: unused value: $4 [-Wother]
 628 input.y:8.9-11: warning: unset value: $$ [-Wother]
 629 ]])
 630
 631 AT_CLEANUP
 632
 633
 634 ## ----------------------------------------- ##
 635 ## Unused values with per-type %destructor.  ##
 636 ## ----------------------------------------- ##
 637
 638 AT_SETUP([Unused values with per-type %destructor])
 639
 640 AT_DATA([[input.y]],
 641 [[%destructor { destroy ($$); } <field1>
 642 %type <field1> start end
 643
 644 %%
 645
 646 start: end end { $1; } ;
 647 end: { }  ;
 648 ]])
 649
 650 AT_BISON_CHECK([-fcaret input.y], [0], [],
 651 [[input.y:6.8-22: warning: unset value: $$ [-Wother]
 652  start: end end { $1; } ;
 653         ^^^^^^^^^^^^^^^
 654 input.y:6.12-14: warning: unused value: $2 [-Wother]
 655  start: end end { $1; } ;
 656             ^^^
 657 input.y:7.6-8: warning: unset value: $$ [-Wother]
 658  end: { }  ;
 659       ^^^
 660 ]])
 661
 662 AT_CLEANUP
 663
 664
 665 ## ---------------------- ##
 666 ## Incompatible Aliases.  ##
 667 ## ---------------------- ##
 668
 669 AT_SETUP([Incompatible Aliases])
 670
 671 AT_DATA([input.y],
 672 [[%token foo "foo"
 673
 674 %type <bar>       foo
 675 %printer {bar}    foo
 676 %destructor {bar} foo
 677 %left             foo
 678
 679 %type <baz>       "foo"
 680 %printer {baz}    "foo"
 681 %destructor {baz} "foo"
 682 %left             "foo"
 683
 684 %%
 685 exp: foo;
 686 ]])
 687
 688 AT_BISON_CHECK([-fcaret input.y], [1], [],
 689 [[input.y:8.7-11: error: %type redeclaration for foo
 690  %type <baz>       "foo"
 691        ^^^^^
 692 input.y:3.7-11:     previous declaration
 693  %type <bar>       foo
 694        ^^^^^
 695 input.y:10.13-17: error: %destructor redeclaration for foo
 696  %destructor {baz} "foo"
 697              ^^^^^
 698 input.y:5.13-17:      previous declaration
 699  %destructor {bar} foo
 700              ^^^^^
 701 input.y:9.10-14: error: %printer redeclaration for foo
 702  %printer {baz}    "foo"
 703           ^^^^^
 704 input.y:4.10-14:     previous declaration
 705  %printer {bar}    foo
 706           ^^^^^
 707 input.y:11.1-5: error: %left redeclaration for foo
 708  %left             "foo"
 709  ^^^^^
 710 input.y:6.1-5:      previous declaration
 711  %left             foo
 712  ^^^^^
 713 ]])
 714
 715 AT_CLEANUP
 716
 717
 718
 719 ## ----------------------- ##
 720 ## Torturing the Scanner.  ##
 721 ## ----------------------- ##
 722
 723 # Be sure to compile and run, so that the C compiler checks what
 724 # we do.
 725
 726 AT_SETUP([Torturing the Scanner])
 727
 728 AT_BISON_OPTION_PUSHDEFS
 729 AT_DATA([input.y], [])
 730 AT_BISON_CHECK([input.y], [1], [],
 731 [[input.y:1.1: error: syntax error, unexpected end of file
 732 ]])
 733
 734
 735 AT_DATA([input.y],
 736 [{}
 737 ])
 738 AT_BISON_CHECK([-fcaret  input.y], [1], [],
 739 [[input.y:1.1-2: error: syntax error, unexpected {...}
 740  {}
 741  ^^
 742 ]])
 743
 744
 745 AT_DATA_GRAMMAR([input.y],
 746 [[%{
 747 /* This is seen in GCC: a %{ and %} in middle of a comment. */
 748 const char *foo = "So %{ and %} can be here too.";
 749
 750 #if 0
 751 /* These examples test Bison while not stressing C compilers too much.
 752    Many C compilers mishandle backslash-newlines, so this part of the
 753    test is inside "#if 0".  The comment and string are written so that
 754    the "#endif" will be seen regardless of the C compiler bugs that we
 755    know about, namely:
 756
 757      HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
 758      comment.
 759
 760      The Apple Darwin compiler (as of late 2002) mishandles
 761      \\[newline]' within a character constant.
 762
 763    */
 764
 765 /\
 766 * A comment with backslash-newlines in it. %} *\
 767 \
 768 /
 769 /* { Close the above comment, if the C compiler mishandled it.  */
 770
 771 char str[] = "\\
 772 " A string with backslash-newlines in it %{ %} \\
 773 \
 774 "";
 775
 776 char apostrophe = '\'';
 777 #endif
 778
 779 #include <stdio.h>
 780 #include <stdlib.h>
 781 #include <assert.h>
 782 %}
 783 /* %{ and %} can be here too. */
 784
 785 %{
 786 /* Exercise pre-prologue dependency to %union.  */
 787 typedef int value;
 788 %}
 789
 790 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 791
 792 /* Also exercise %union. */
 793 %union
 794 {
 795   value ival; /* A comment to exercise an old bug. */
 796 };
 797
 798
 799 /* Exercise post-prologue dependency to %union.  */
 800 %{
 801 static YYSTYPE value_as_yystype (value val);
 802
 803 /* Exercise quotes in declarations.  */
 804 char quote[] = "@:>@@:>@,";
 805 %}
 806
 807 %{
 808 ]AT_YYERROR_DECLARE[
 809 ]AT_YYLEX_DECLARE[
 810 %}
 811
 812 %type <ival> '@<:@'
 813
 814 /* Exercise quotes in strings.  */
 815 %token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
 816
 817 %%
 818 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 1.  */
 819 exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
 820   {
 821     /* Exercise quotes in braces.  */
 822     char tmp[] = "@<:@%c@:>@,\n";
 823     printf (tmp, $1);
 824   }
 825 ;
 826
 827 two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
 828 oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
 829 output.or.oline.opt: ;|oline;;|output;;;
 830 output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
 831 %%
 832 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 2.  */
 833
 834 static YYSTYPE
 835 value_as_yystype (value val)
 836 {
 837   YYSTYPE res;
 838   res.ival = val;
 839   return res;
 840 }
 841 ]AT_YYERROR_DEFINE[
 842 static int
 843 yylex (void)
 844 {
 845   static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
 846 #output "; /* "
 847   */
 848   static size_t toknum;
 849   assert (toknum < sizeof input);
 850   yylval = value_as_yystype (input[toknum]);
 851   return input[toknum++];
 852 }
 853 ]])
 854
 855 # Pacify Emacs'font-lock-mode: "
 856
 857 AT_DATA([main.c],
 858 [[typedef int value;
 859 #include "input.h"
 860
 861 int yyparse (void);
 862 ]AT_MAIN_DEFINE[
 863 ]])
 864 AT_BISON_OPTION_POPDEFS
 865
 866 AT_BISON_CHECK([-d -v -o input.c input.y])
 867 AT_COMPILE([input.o])
 868 AT_COMPILE([main.o])
 869 AT_COMPILE([input], [input.o main.o])
 870 AT_PARSER_CHECK([./input], 0,
 871 [[[@<:@],
 872 ]])
 873
 874 AT_CLEANUP
 875
 876
 877 ## ---------------------- ##
 878 ## Typed symbol aliases.  ##
 879 ## ---------------------- ##
 880
 881 AT_SETUP([Typed symbol aliases])
 882
 883 # Bison 2.0 broke typed symbol aliases - ensure they work.
 884
 885 AT_DATA_GRAMMAR([input.y],
 886 [[%union
 887 {
 888   int val;
 889 };
 890 %token <val> MY_TOKEN "MY TOKEN"
 891 %type <val> exp
 892 %%
 893 exp: "MY TOKEN";
 894 %%
 895 ]])
 896
 897 AT_BISON_CHECK([-o input.c input.y])
 898
 899 AT_CLEANUP
 900
 901
 902 ## --------- ##
 903 ## Require.  ##
 904 ## --------- ##
 905
 906 m4_define([AT_CHECK_REQUIRE],
 907 [AT_SETUP([Require $1])
 908 AT_DATA_GRAMMAR([input.y],
 909 [[%require "$1";
 910 %%
 911 empty_file:;
 912 ]])
 913 AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)
 914 AT_CLEANUP
 915 ])
 916
 917 AT_CHECK_REQUIRE(1.0, 0)
 918 AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
 919 ## FIXME: Some day augment this version number.
 920 AT_CHECK_REQUIRE(100.0, 63)
 921
 922
 923 ## ------------------------------------- ##
 924 ## String aliases for character tokens.  ##
 925 ## ------------------------------------- ##
 926
 927 AT_SETUP([String aliases for character tokens])
 928
 929 # Bison once thought a character token and its alias were different
 930 # symbols with the same user token number.
 931
 932 AT_DATA_GRAMMAR([input.y],
 933 [[%token 'a' "a"
 934 %%
 935 start: 'a';
 936 %%
 937 ]])
 938
 939 AT_BISON_CHECK([-o input.c input.y])
 940
 941 AT_CLEANUP
 942
 943
 944 ## -------------- ##
 945 ## Symbol names.  ##
 946 ## -------------- ##
 947
 948 AT_SETUP([Symbols])
 949
 950 AT_BISON_OPTION_PUSHDEFS
 951 AT_DATA_GRAMMAR([input.y],
 952 [[%token WITH-DASH
 953 %token WITHOUT_DASH "WITHOUT-DASH"
 954 %token WITH.PERIOD
 955 %token WITHOUT_PERIOD "WITHOUT.PERIOD"
 956 %code {
 957   ]AT_YYERROR_DECLARE[
 958   ]AT_YYLEX_DECLARE[
 959 }
 960 %%
 961 start: with-dash without_dash with.period without_period;
 962 with-dash: WITH-DASH;
 963 without_dash: "WITHOUT-DASH";
 964 with.period: WITH.PERIOD;
 965 without_period: "WITHOUT.PERIOD";
 966 %%
 967 ]AT_YYERROR_DEFINE[
 968 ]AT_YYLEX_DEFINE[
 969 ]])
 970 AT_BISON_OPTION_POPDEFS
 971
 972 # POSIX Yacc accept periods, but not dashes.
 973 AT_BISON_CHECK([--yacc -Wno-error input.y], [], [],
 974 [[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
 975 input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
 976 ]])
 977
 978 # So warn about them.
 979 AT_BISON_CHECK([-Wyacc input.y], [], [],
 980 [[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
 981 input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
 982 ]])
 983
 984 # Dashes are fine for GNU Bison.
 985 AT_BISON_CHECK([-o input.c input.y])
 986
 987 # Make sure we don't export silly token identifiers with periods or dashes.
 988 AT_COMPILE([input.o])
 989
 990
 991 # Periods are genuine letters, they can start identifiers.
 992 # Digits and dashes cannot.
 993 AT_DATA_GRAMMAR([input.y],
 994 [[%token .GOOD
 995          -GOOD
 996          1NV4L1D
 997          -123
 998 %%
 999 start: .GOOD GOOD
1000 ]])
1001 AT_BISON_CHECK([-o input.c input.y], [1], [],
1002 [[input.y:10.10: error: invalid character: '-'
1003 input.y:11.10-16: error: invalid identifier: '1NV4L1D'
1004 input.y:12.10: error: invalid character: '-'
1005 ]])
1006
1007 AT_CLEANUP
1008
1009
1010 ## ----------------- ##
1011 ## Numbered tokens.  ##
1012 ## ----------------- ##
1013
1014 AT_SETUP([Numbered tokens])
1015
1016 AT_DATA_GRAMMAR([redecl.y],
1017 [[%token DECIMAL_1     11259375
1018          HEXADECIMAL_1 0xabcdef
1019          HEXADECIMAL_2 0xFEDCBA
1020          DECIMAL_2     16702650
1021 %%
1022 start: DECIMAL_1 HEXADECIMAL_2;
1023 ]])
1024
1025 AT_BISON_CHECK([redecl.y], [1], [],
1026 [[redecl.y:10.10-22: error: user token number 11259375 redeclaration for HEXADECIMAL_1
1027 redecl.y:9.8-16:       previous declaration for DECIMAL_1
1028 redecl.y:12.10-18: error: user token number 16702650 redeclaration for DECIMAL_2
1029 redecl.y:11.10-22:     previous declaration for HEXADECIMAL_2
1030 ]])
1031
1032 AT_DATA_GRAMMAR([too-large.y],
1033 [[%token TOO_LARGE_DEC 999999999999999999999
1034          TOO_LARGE_HEX 0xFFFFFFFFFFFFFFFFFFF
1035 %%
1036 start: TOO_LARGE_DEC TOO_LARGE_HEX
1037 %%
1038 ]])
1039
1040 AT_BISON_CHECK([too-large.y], [1], [],
1041 [[too-large.y:9.22-42: error: integer out of range: '999999999999999999999'
1042 too-large.y:10.24-44: error: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
1043 ]])
1044
1045 AT_CLEANUP
1046
1047
1048 ## --------------------- ##
1049 ## Unclosed constructs.  ##
1050 ## --------------------- ##
1051
1052 AT_SETUP([Unclosed constructs])
1053
1054 # Bison's scan-gram.l once forgot to STRING_FINISH some unclosed
1055 # constructs, so they were prepended to whatever it STRING_GROW'ed
1056 # next.  It also threw them away rather than returning them to the
1057 # parser.  The effect was confusing subsequent error messages.
1058
1059 AT_DATA([input.y],
1060 [[%token A "a
1061 %token B "b"
1062 %token AB "ab" // Used to complain that "ab" was already used.
1063 %token C '1
1064 %token TWO "2"
1065 %token TICK_TWELVE "'12" // Used to complain that "'12" was already used.
1066
1067 %%
1068
1069 start: ;
1070
1071 // Used to report a syntax error because it didn't see any kind of symbol
1072 // identifier.
1073 %type <f> 'a
1074 ;
1075 %type <f> "a
1076 ;
1077 // Used to report a syntax error because it didn't see braced code.
1078 %destructor { free ($$)
1079 ]])
1080
1081 AT_BISON_CHECK([-fcaret -o input.c input.y], 1, [],
1082 [[input.y:1.10-2.0: error: missing '"' at end of line
1083  %token A "a
1084           ^^
1085 input.y:4.10-5.0: error: missing "'" at end of line
1086  %token C '1
1087           ^^
1088 input.y:14.11-15.0: error: missing "'" at end of line
1089  %type <f> 'a
1090            ^^
1091 input.y:16.11-17.0: error: missing '"' at end of line
1092  %type <f> "a
1093            ^^
1094 input.y:19.13-20.0: error: missing '}' at end of file
1095  %destructor { free ($$)
1096              ^^^^^^^^^^^
1097 input.y:20.1: error: syntax error, unexpected end of file
1098 ]])
1099
1100 AT_CLEANUP
1101
1102
1103 ## ------------------------- ##
1104 ## %start after first rule.  ##
1105 ## ------------------------- ##
1106
1107 AT_SETUP([%start after first rule])
1108
1109 # Bison once complained that a %start after the first rule was a
1110 # redeclaration of the start symbol.
1111
1112 AT_DATA([input.y],
1113 [[%%
1114 false_start: ;
1115 start: false_start ;
1116 %start start;
1117 ]])
1118
1119 AT_BISON_CHECK([-o input.c input.y])
1120
1121 AT_CLEANUP
1122
1123
1124 ## --------------------- ##
1125 ## %prec takes a token.  ##
1126 ## --------------------- ##
1127
1128 AT_SETUP([%prec takes a token])
1129
1130 # Bison once allowed %prec sym where sym was a nonterminal.
1131
1132 AT_DATA([input.y],
1133 [[%%
1134 start: PREC %prec PREC ;
1135 PREC: ;
1136 ]])
1137
1138 AT_BISON_CHECK([input.y], [1], [],
1139 [[input.y:3.1-4: error: rule given for PREC, which is a token
1140 ]])
1141
1142 AT_CLEANUP
1143
1144
1145 ## ------------------------------- ##
1146 ## %prec's token must be defined.  ##
1147 ## ------------------------------- ##
1148
1149 AT_SETUP([[%prec's token must be defined]])
1150
1151 # According to POSIX, a %prec token must be defined separately.
1152
1153 AT_DATA([[input.y]],
1154 [[%%
1155 start: %prec PREC ;
1156 ]])
1157
1158 AT_BISON_CHECK([[input.y]], [[0]], [],
1159 [[input.y:2.8-17: warning: token for %prec is not defined: PREC [-Wother]
1160 ]])
1161
1162 AT_CLEANUP
1163
1164
1165 ## -------------------------------- ##
1166 ## Reject unused %code qualifiers.  ##
1167 ## -------------------------------- ##
1168
1169 AT_SETUP([Reject unused %code qualifiers])
1170
1171 AT_DATA([input-c.y],
1172 [[%code q {}
1173 %code bad {}
1174 %code bad {}
1175 %code format {}
1176 %%
1177 start: ;
1178 ]])
1179 AT_BISON_CHECK([[input-c.y]], [[1]], [],
1180 [[input-c.y:1.7: error: %code qualifier 'q' is not used
1181 input-c.y:2.7-9: error: %code qualifier 'bad' is not used
1182 input-c.y:3.7-9: error: %code qualifier 'bad' is not used
1183 input-c.y:4.7-12: error: %code qualifier 'format' is not used
1184 ]])
1185
1186 AT_DATA([input-c-glr.y],
1187 [[%code q {}
1188 %code bad {}
1189  %code bad {}
1190 %%
1191 start: ;
1192 ]])
1193 AT_BISON_CHECK([[input-c-glr.y]], [[1]], [],
1194 [[input-c-glr.y:1.7: error: %code qualifier 'q' is not used
1195 input-c-glr.y:2.7-9: error: %code qualifier 'bad' is not used
1196 input-c-glr.y:3.8-10: error: %code qualifier 'bad' is not used
1197 ]])
1198
1199 AT_DATA([input-c++.y],
1200 [[%code q {}
1201 %code bad {}
1202  %code q {}
1203 %%
1204 start: ;
1205 ]])
1206 AT_BISON_CHECK([[input-c++.y]], [[1]], [],
1207 [[input-c++.y:1.7: error: %code qualifier 'q' is not used
1208 input-c++.y:2.7-9: error: %code qualifier 'bad' is not used
1209 input-c++.y:3.8: error: %code qualifier 'q' is not used
1210 ]])
1211
1212 AT_DATA([input-c++-glr.y],
1213 [[%code bad {}
1214 %code q {}
1215 %code q {}
1216 %%
1217 start: ;
1218 ]])
1219 AT_BISON_CHECK([[input-c++-glr.y]], [[1]], [],
1220 [[input-c++-glr.y:1.7-9: error: %code qualifier 'bad' is not used
1221 input-c++-glr.y:2.7: error: %code qualifier 'q' is not used
1222 input-c++-glr.y:3.7: error: %code qualifier 'q' is not used
1223 ]])
1224
1225 AT_DATA([special-char-@@.y],
1226 [[%code bad {}
1227 %code q {}
1228 %code q {}
1229 %%
1230 start: ;
1231 ]])
1232 AT_BISON_CHECK([[special-char-@@.y]], [[1]], [],
1233 [[special-char-@@.y:1.7-9: error: %code qualifier 'bad' is not used
1234 special-char-@@.y:2.7: error: %code qualifier 'q' is not used
1235 special-char-@@.y:3.7: error: %code qualifier 'q' is not used
1236 ]])
1237
1238 AT_DATA([special-char-@:>@.y],
1239 [[%code bad {}
1240 %code q {}
1241 %code q {}
1242 %%
1243 start: ;
1244 ]])
1245 AT_BISON_CHECK([[special-char-@:>@.y]], [[1]], [],
1246 [[special-char-@:>@.y:1.7-9: error: %code qualifier 'bad' is not used
1247 special-char-@:>@.y:2.7: error: %code qualifier 'q' is not used
1248 special-char-@:>@.y:3.7: error: %code qualifier 'q' is not used
1249 ]])
1250
1251 AT_CLEANUP
1252
1253
1254 ## ---------------- ##
1255 ## %define errors.  ##
1256 ## ---------------- ##
1257
1258 AT_SETUP([%define errors])
1259
1260 AT_DATA([input-redefined.y],
1261 [[%define var "value1"
1262 %define var "value1"
1263  %define var "value2"
1264 %define special1 "@:>@"
1265 %define special2 "@<:@"
1266 %%
1267 start: ;
1268 ]])
1269
1270 AT_BISON_CHECK([[input-redefined.y]], [[1]], [],
1271 [[input-redefined.y:2.9-11: error: %define variable 'var' redefined
1272 input-redefined.y:1.9-11:     previous definition
1273 input-redefined.y:3.10-12: error: %define variable 'var' redefined
1274 input-redefined.y:2.9-11:      previous definition
1275 ]])
1276
1277 AT_DATA([input-unused.y],
1278 [[%define var "value"
1279 %%
1280 start: ;
1281 ]])
1282
1283 AT_BISON_CHECK([[input-unused.y]], [[1]], [],
1284 [[input-unused.y:1.9-11: error: %define variable 'var' is not used
1285 ]])
1286
1287 AT_CLEANUP
1288
1289
1290 ## ----------------------------------- ##
1291 ## %define, --define, --force-define.  ##
1292 ## ----------------------------------- ##
1293
1294 AT_SETUP([[%define, --define, --force-define]])
1295
1296 AT_DATA([[skel.c]],
1297 [[m4@&t@_divert_push(0)@
1298 @output(b4_parser_file_name@)@
1299 [var-dd: ]b4_percent_define_get([[var-dd]])[
1300 var-ff: ]b4_percent_define_get([[var-ff]])[
1301 var-dfg: ]b4_percent_define_get([[var-dfg]])[
1302 var-fd: ]b4_percent_define_get([[var-fd]])
1303 m4@&t@_divert_pop(0)
1304 ]])
1305 AT_DATA([[input.y]],
1306 [[%define var-dfg "gram"
1307 %%
1308 start: ;
1309 ]])
1310 AT_BISON_CHECK([[-Dvar-dd=cmd-d1 -Dvar-dd=cmd-d2 \
1311                  -Fvar-ff=cmd-f1 -Fvar-ff=cmd-f2 \
1312                  -Dvar-dfg=cmd-d -Fvar-dfg=cmd-f \
1313                  -Fvar-fd=cmd-f -Dvar-fd=cmd-d   \
1314                  --skeleton ./skel.c input.y]])
1315 AT_CHECK([[cat input.tab.c]], [[0]],
1316 [[var-dd: cmd-d2
1317 var-ff: cmd-f2
1318 var-dfg: cmd-f
1319 var-fd: cmd-d
1320 ]])
1321
1322 AT_DATA([[input-dg.y]],
1323 [[%define var "gram"
1324 %%
1325 start: ;
1326 ]])
1327 AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
1328 [[input-dg.y:1.9-11: error: %define variable 'var' redefined
1329 <command line>:2:      previous definition
1330 ]])
1331
1332 AT_DATA([[input-dg.y]],
1333 [[%define var "gram"
1334 %%
1335 start: ;
1336 ]])
1337 AT_BISON_CHECK([[-fcaret -Dvar=cmd-d input-dg.y]], [[1]], [],
1338 [[input-dg.y:1.9-11: error: %define variable 'var' redefined
1339  %define var "gram"
1340          ^^^
1341 <command line>:3:      previous definition
1342 ]])
1343
1344 AT_DATA([[input-unused.y]],
1345 [[%%
1346 start: ;
1347 ]])
1348 AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [],
1349 [[<command line>:2: error: %define variable 'unused-d' is not used
1350 <command line>:3: error: %define variable 'unused-f' is not used
1351 ]])
1352
1353 AT_CLEANUP
1354
1355 ## --------------------------- ##
1356 ## %define Boolean variables.  ##
1357 ## --------------------------- ##
1358
1359 AT_SETUP([["%define" Boolean variables]])
1360
1361 AT_DATA([Input.y],
1362 [[%language "Java"
1363 %define public "maybe"
1364 %define parser_class_name "Input"
1365 %%
1366 start: ;
1367 ]])
1368
1369 AT_BISON_CHECK([[Input.y]], [1], [],
1370 [[Input.y:2.9-14: error: invalid value for %define Boolean variable 'public'
1371 ]])
1372
1373 AT_CLEANUP
1374
1375 ## ------------------------ ##
1376 ## %define enum variables.  ##
1377 ## ------------------------ ##
1378
1379 AT_SETUP([["%define" enum variables]])
1380
1381 # Check errors from the front-end, and the back-end.  Since the
1382 # front-end quits before calling the back-end, these tests cannot be
1383 # fused.
1384
1385 # Front-end.
1386 AT_DATA([[input.y]],
1387 [[%define lr.default-reduction bogus
1388 %%
1389 start: ;
1390 ]])
1391 AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
1392 [[input.y:1.9-28: error: invalid value for %define variable 'lr.default-reduction': 'bogus'
1393  %define lr.default-reduction bogus
1394          ^^^^^^^^^^^^^^^^^^^^
1395 input.y:1.9-28:     accepted value: 'most'
1396 input.y:1.9-28:     accepted value: 'consistent'
1397 input.y:1.9-28:     accepted value: 'accepting'
1398 ]])
1399
1400 # Back-end.
1401 AT_DATA([[input.y]],
1402 [[%define api.push-pull neither
1403 %%
1404 start: ;
1405 ]])
1406 AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
1407 [[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
1408  %define api.push-pull neither
1409          ^^^^^^^^^^^^^
1410 input.y:1.9-21:     accepted value: 'pull'
1411 input.y:1.9-21:     accepted value: 'push'
1412 input.y:1.9-21:     accepted value: 'both'
1413 ]])
1414
1415 AT_CLEANUP
1416
1417 ## -------------------------------- ##
1418 ## %define backward compatibility.  ##
1419 ## -------------------------------- ##
1420
1421 AT_SETUP([["%define" backward compatibility]])
1422
1423 # The error messages tell us whether the variables are properly updated.
1424 AT_DATA([[input.y]],
1425 [[%define api.push_pull both
1426 %define lr.keep_unreachable_states maybe
1427 %define namespace "foo"
1428 %define api.namespace "foo"
1429 %define variant
1430 %%
1431 start: ;
1432 ]])
1433 AT_BISON_CHECK([[-fcaret input.y]], [1], [],
1434 [[input.y:1.9-21: warning: deprecated directive, use '%define api.push-pull both' [-Wdeprecated]
1435  %define api.push_pull both
1436          ^^^^^^^^^^^^^
1437 input.y:2.9-34: warning: deprecated directive, use '%define lr.keep-unreachable-state maybe' [-Wdeprecated]
1438  %define lr.keep_unreachable_states maybe
1439          ^^^^^^^^^^^^^^^^^^^^^^^^^^
1440 input.y:3.9-17: warning: deprecated directive, use '%define api.namespace foo' [-Wdeprecated]
1441  %define namespace "foo"
1442          ^^^^^^^^^
1443 input.y:4.9-21: error: %define variable 'api.namespace' redefined
1444  %define api.namespace "foo"
1445          ^^^^^^^^^^^^^
1446 input.y:3.9-17:     previous definition
1447  %define namespace "foo"
1448          ^^^^^^^^^
1449 input.y:5.9-15: warning: deprecated directive, use '%define api.value.type variant' [-Wdeprecated]
1450  %define variant
1451          ^^^^^^^
1452 ]])
1453
1454 AT_CLEANUP
1455
1456 ## ------------------------- ##
1457 ## Unused %define api.pure.  ##
1458 ## ------------------------- ##
1459
1460 AT_SETUP([[Unused %define api.pure]])
1461
1462 # AT_CHECK_API_PURE(DECLS, VALUE)
1463 # -------------------------------
1464 # Make sure Bison reports that `%define api.pure VALUE' is unused when DECLS
1465 # are specified.
1466 m4_define([AT_CHECK_API_PURE],
1467 [
1468 AT_DATA([[input.y]],
1469 [[%define api.pure ]$2[
1470 ]$1[
1471 %%
1472 start: ;
1473 ]])
1474
1475 AT_BISON_CHECK([[input.y]], [[1]], [],
1476 [[input.y:1.9-16: error: %define variable 'api.pure' is not used
1477 ]])
1478 ])
1479
1480 AT_CHECK_API_PURE([[%language "c++" %defines]], [[]])
1481 AT_CHECK_API_PURE([[%language "c++" %defines]], [[false]])
1482 AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[""]])
1483 AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[false]])
1484 AT_CHECK_API_PURE([[%language "java"]], [[true]])
1485 AT_CHECK_API_PURE([[%language "java"]], [[false]])
1486
1487 AT_CLEANUP
1488
1489 ## -------------------------------- ##
1490 ## C++ namespace reference errors.  ##
1491 ## -------------------------------- ##
1492
1493 AT_SETUP([[C++ namespace reference errors]])
1494
1495 # AT_CHECK_NAMESPACE_ERROR(NAMESPACE-DECL, ERROR, [ERROR], ...)
1496 # -------------------------------------------------------------
1497 # Make sure Bison reports all ERROR's for %define namespace "NAMESPACE-DECL".
1498 m4_define([AT_CHECK_NAMESPACE_ERROR],
1499 [
1500 AT_DATA([[input.y]],
1501 [[%language "C++"
1502 %defines
1503 %define api.namespace "]$1["
1504 %%
1505 start: ;
1506 ]])
1507
1508 AT_BISON_CHECK([[input.y]], [1], [],
1509 [m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
1510 [[input.y:3.9-21: error: ]b4_arg[
1511 ]])])
1512 ])
1513
1514 AT_CHECK_NAMESPACE_ERROR([[]],
1515                          [[namespace reference is empty]])
1516 AT_CHECK_NAMESPACE_ERROR([[                             ]],
1517                          [[namespace reference is empty]])
1518 AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
1519                          [[namespace reference has consecutive "::"]])
1520 AT_CHECK_NAMESPACE_ERROR([[foo::        ::bar]],
1521                          [[namespace reference has consecutive "::"]])
1522 AT_CHECK_NAMESPACE_ERROR([[::::bar]],
1523                          [[namespace reference has consecutive "::"]])
1524 AT_CHECK_NAMESPACE_ERROR([[:: ::bar]],
1525                          [[namespace reference has consecutive "::"]])
1526 AT_CHECK_NAMESPACE_ERROR([[foo::bar::   ::]],
1527                          [[namespace reference has consecutive "::"]],
1528                          [[namespace reference has a trailing "::"]])
1529 AT_CHECK_NAMESPACE_ERROR([[foo::bar::]],
1530                          [[namespace reference has a trailing "::"]])
1531 AT_CHECK_NAMESPACE_ERROR([[foo::bar::   ]],
1532                          [[namespace reference has a trailing "::"]])
1533 AT_CHECK_NAMESPACE_ERROR([[::]],
1534                          [[namespace reference has a trailing "::"]])
1535
1536 AT_CLEANUP
1537
1538 ## ------------------------ ##
1539 ## Bad character literals.  ##
1540 ## ------------------------ ##
1541
1542 # Bison used to accept character literals that were empty or contained
1543 # too many characters.
1544
1545 # FIXME: AT_DATA or some variant of AT_DATA may eventually permit
1546 # the final newline to be omitted.  See the threads starting at
1547 # <http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00019.html>.
1548
1549 AT_SETUP([[Bad character literals]])
1550
1551 AT_DATA([empty.y],
1552 [[%%
1553 start: '';
1554 start: '
1555 ]])
1556 AT_CHECK([[$PERL -e "print 'start: \'';" >> empty.y || exit 77]])
1557
1558 AT_BISON_CHECK([-fcaret empty.y], [1], [],
1559 [[empty.y:2.8-9: warning: empty character literal [-Wother]
1560  start: '';
1561         ^^
1562 empty.y:3.8-4.0: error: missing "'" at end of line
1563  start: '
1564         ^
1565 empty.y:3.8-4.0: warning: empty character literal [-Wother]
1566  start: '
1567         ^
1568 empty.y:4.8: error: missing "'" at end of file
1569  start: '
1570         ^
1571 empty.y:4.8: warning: empty character literal [-Wother]
1572  start: '
1573         ^
1574 ]])
1575
1576 AT_DATA([two.y],
1577 [[%%
1578 start: 'ab';
1579 start: 'ab
1580 ]])
1581 AT_CHECK([[$PERL -e "print 'start: \'ab';" >> two.y || exit 77]])
1582
1583 AT_BISON_CHECK([two.y], [1], [],
1584 [[two.y:2.8-11: warning: extra characters in character literal [-Wother]
1585 two.y:3.8-4.0: error: missing "'" at end of line
1586 two.y:3.8-4.0: warning: extra characters in character literal [-Wother]
1587 two.y:4.8-10: error: missing "'" at end of file
1588 two.y:4.8-10: warning: extra characters in character literal [-Wother]
1589 ]])
1590
1591 AT_DATA([three.y],
1592 [[%%
1593 start: 'abc';
1594 start: 'abc
1595 ]])
1596 AT_CHECK([[$PERL -e "print 'start: \'abc';" >> three.y || exit 77]])
1597
1598 AT_BISON_CHECK([three.y], [1], [],
1599 [[three.y:2.8-12: warning: extra characters in character literal [-Wother]
1600 three.y:3.8-4.0: error: missing "'" at end of line
1601 three.y:3.8-4.0: warning: extra characters in character literal [-Wother]
1602 three.y:4.8-11: error: missing "'" at end of file
1603 three.y:4.8-11: warning: extra characters in character literal [-Wother]
1604 ]])
1605
1606 AT_CLEANUP
1607
1608 ## ------------------------- ##
1609 ## Bad escapes in literals.  ##
1610 ## ------------------------- ##
1611
1612 AT_SETUP([[Bad escapes in literals]])
1613
1614 AT_DATA([input.y],
1615 [[%%
1616 start: '\777' '\0' '\xfff' '\x0'
1617        '\uffff' '\u0000' '\Uffffffff' '\U00000000'
1618        '\ ' '\A';
1619 ]])
1620
1621 # It is not easy to create special characters, we cannot even trust tr.
1622 # Beside we cannot even expect "echo '\0'" to output two characters
1623 # (well three with \n): at least Bash 3.2 converts the two-character
1624 # sequence "\0" into a single NUL character.
1625 AT_CHECK([[$PERL -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
1626            || exit 77]])
1627
1628 AT_BISON_CHECK([input.y], [1], [],
1629 [[input.y:2.9-12: error: invalid number after \-escape: 777
1630 input.y:2.8-13: warning: empty character literal [-Wother]
1631 input.y:2.16-17: error: invalid number after \-escape: 0
1632 input.y:2.15-18: warning: empty character literal [-Wother]
1633 input.y:2.21-25: error: invalid number after \-escape: xfff
1634 input.y:2.20-26: warning: empty character literal [-Wother]
1635 input.y:2.29-31: error: invalid number after \-escape: x0
1636 input.y:2.28-32: warning: empty character literal [-Wother]
1637 input.y:3.9-14: error: invalid number after \-escape: uffff
1638 input.y:3.8-15: warning: empty character literal [-Wother]
1639 input.y:3.18-23: error: invalid number after \-escape: u0000
1640 input.y:3.17-24: warning: empty character literal [-Wother]
1641 input.y:3.27-36: error: invalid number after \-escape: Uffffffff
1642 input.y:3.26-37: warning: empty character literal [-Wother]
1643 input.y:3.40-49: error: invalid number after \-escape: U00000000
1644 input.y:3.39-50: warning: empty character literal [-Wother]
1645 input.y:4.9-10: error: invalid character after \-escape: ' '
1646 input.y:4.8-11: warning: empty character literal [-Wother]
1647 input.y:4.14-15: error: invalid character after \-escape: A
1648 input.y:4.13-16: warning: empty character literal [-Wother]
1649 input.y:5.9-16: error: invalid character after \-escape: \t
1650 input.y:5.17: error: invalid character after \-escape: \f
1651 input.y:5.18: error: invalid character after \-escape: \0
1652 input.y:5.19: error: invalid character after \-escape: \001
1653 ]])
1654
1655 AT_CLEANUP
1656
1657 ## ------------------------- ##
1658 ## LAC: Errors for %define.  ##
1659 ## ------------------------- ##
1660
1661 AT_SETUP([[LAC: Errors for %define]])
1662
1663 AT_DATA([[input.y]],
1664 [[%%
1665 start: ;
1666 ]])
1667
1668 # parse.lac.* options are useless if LAC isn't actually activated.
1669 AT_BISON_CHECK([[-Dparse.lac.es-capacity-initial=1 input.y]],
1670                [[1]], [],
1671 [[<command line>:2: error: %define variable 'parse.lac.es-capacity-initial' is not used
1672 ]])
1673 AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]],
1674                [[1]], [],
1675 [[<command line>:2: error: %define variable 'parse.lac.memory-trace' is not used
1676 ]])
1677
1678 AT_CLEANUP
1679
1680 ## --------------------------------------------- ##
1681 ## -Werror is not affected by -Wnone and -Wall.  ##
1682 ## --------------------------------------------- ##
1683
1684 AT_SETUP([[-Werror is not affected by -Wnone and -Wall]])
1685
1686 AT_DATA([[input.y]],
1687 [[%%
1688 foo-bar: ;
1689 ]])
1690
1691 # -Werror is not enabled by -Wall or equivalent.
1692 AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
1693 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1694 ]])
1695 AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
1696 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1697 ]])
1698 AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
1699 [[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
1700 ]])
1701
1702 # -Werror is not disabled by -Wnone or equivalent.
1703 AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
1704 AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],
1705 [[input.y:2.1-7: error: POSIX Yacc forbids dashes in symbol names: foo-bar [-Werror=yacc]
1706 ]])
1707 [mv stderr experr]
1708 AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])
1709
1710 AT_CLEANUP
1711
1712
1713 ## ------------------------------------------------------ ##
1714 ## %name-prefix and %define api.prefix are incompatible.  ##
1715 ## ------------------------------------------------------ ##
1716
1717 AT_SETUP([[%name-prefix and api.prefix are incompatible]])
1718
1719 # AT_TEST(DIRECTIVES, OPTIONS, ERROR-LOCATION)
1720 # --------------------------------------------
1721 m4_pushdef([AT_TEST],
1722 [AT_DATA([[input.y]],
1723 [[$1
1724 %%
1725 exp:;
1726 ]])
1727 AT_BISON_CHECK([[$2 input.y]], [[1]], [[]],
1728 [[$3: error: '%name-prefix' and '%define api.prefix' cannot be used together
1729 ]])
1730 ])
1731
1732 AT_TEST([%define api.prefix foo %name-prefix "bar"], [], [input.y:1.9-18])
1733 AT_TEST([], [-Dapi.prefix=foo -p bar], [<command line>:2])
1734 AT_TEST([%name-prefix "bar"], [-Dapi.prefix=foo], [<command line>:2])
1735 AT_TEST([%define api.prefix foo], [-p bar], [input.y:1.9-18])
1736
1737 m4_popdef([AT_TEST])
1738
1739 AT_CLEANUP
1740
1741
1742 ## -------------- ##
1743 ## Stray $ or @.  ##
1744 ## -------------- ##
1745
1746 AT_SETUP([[Stray $ or @]])
1747
1748 # Give %printer and %destructor "<*> exp TOK" instead of "<*>" to
1749 # check that the warnings are reported once, not three times.
1750
1751 AT_DATA_GRAMMAR([[input.y]],
1752 [[%type <TYPE> exp
1753 %token <TYPE> TOK TOK2
1754 %destructor     { $%; @%; } <*> exp TOK;
1755 %initial-action { $%; @%; };
1756 %printer        { $%; @%; } <*> exp TOK;
1757 %{ $ @ %} // Should not warn.
1758 %%
1759 exp: TOK        { $%; @%; $$ = $1; };
1760 %%
1761 $ @ // Should not warn.
1762 ]])
1763
1764 AT_BISON_CHECK([[-Wall input.y]], 0, [],
1765 [[input.y:11.19: warning: stray '$' [-Wother]
1766 input.y:11.23: warning: stray '@' [-Wother]
1767 input.y:12.19: warning: stray '$' [-Wother]
1768 input.y:12.23: warning: stray '@' [-Wother]
1769 input.y:13.19: warning: stray '$' [-Wother]
1770 input.y:13.23: warning: stray '@' [-Wother]
1771 input.y:16.19: warning: stray '$' [-Wother]
1772 input.y:16.23: warning: stray '@' [-Wother]
1773 ]])
1774
1775 AT_CLEANUP
1776
1777
1778
1779 ## ---------------- ##
1780 ## Code injection.  ##
1781 ## ---------------- ##
1782
1783
1784 AT_SETUP([[Code injection]])
1785
1786 m4_pattern_allow([^m4_errprintn$])
1787
1788 # AT_TEST([MACRO])
1789 # ----------------
1790 # Try to have MACRO be run by bison.
1791 m4_pushdef([AT_TEST],
1792 [AT_DATA([[input.y]],
1793 [[%type <$1(DEAD %type)> exp
1794 %token <$1(DEAD %token)> a
1795 %token b
1796 %initial-action
1797 {
1798   $$;
1799   $<$1(DEAD %initial-action)>$
1800 };
1801 %printer
1802 {
1803   $$
1804   $<$1(DEAD %printer)>$
1805 } <> <*>;
1806 %lex-param
1807 {
1808   $1(DEAD %lex-param)
1809 };
1810 %parse-param
1811 {
1812   $1(DEAD %parse-param)
1813 };
1814 %%
1815 exp:
1816   a a[name] b
1817   {
1818     $$;
1819     $][1;
1820     $<$1(DEAD action 1)>$
1821     $<$1(DEAD action 2)>1
1822     $<$1(DEAD action 3)>name
1823     $<$1(DEAD action 4)>0
1824     ;
1825   };
1826 ]])
1827
1828 # FIXME: Provide a means to iterate over all the skeletons.
1829 AT_BISON_CHECK([[-d               input.y]])
1830 AT_BISON_CHECK([[-d -S glr.c      input.y]])
1831 AT_BISON_CHECK([[-d -S lalr1.cc   input.y]])
1832 AT_BISON_CHECK([[-d -S glr.cc     input.y]])
1833 AT_BISON_CHECK([[   -S lalr1.java input.y]])
1834 ])
1835
1836 AT_TEST([m4_errprintn])
1837 AT_TEST([@:>@m4_errprintn])
1838
1839 m4_popdef([AT_TEST])
1840
1841 AT_CLEANUP
1842
1843 ##----------------------- ##
1844 ## Deprecated directives. ##
1845 ## ---------------------- ##
1846
1847 AT_SETUP([[Deprecated directives]])
1848
1849 AT_KEYWORDS([[deprec]])
1850
1851 AT_DATA_GRAMMAR([[input.y]],
1852 [[
1853 %default_prec
1854 %error_verbose
1855 %expect_rr 0
1856 %file-prefix = "foo"
1857 %file-prefix
1858  =
1859 "bar"
1860 %fixed-output_files
1861 %fixed_output-files
1862 %fixed-output-files
1863 %name-prefix= "foo"
1864 %no-default_prec
1865 %no_default-prec
1866 %no_lines
1867 %output = "foo"
1868 %pure_parser
1869 %token_table
1870 %glr-parser
1871 %% exp : '0'
1872 ]])
1873
1874 AT_BISON_CHECK([[input.y]], [[0]], [[]],
1875 [[input.y:10.1-13: warning: deprecated directive: '%default_prec', use '%default-prec' [-Wdeprecated]
1876 input.y:11.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1877 input.y:12.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1878 input.y:13.1-14: warning: deprecated directive: '%file-prefix =', use '%file-prefix' [-Wdeprecated]
1879 input.y:14.1-15.2: warning: deprecated directive: '%file-prefix\n =', use '%file-prefix' [-Wdeprecated]
1880 input.y:17.1-19: warning: deprecated directive: '%fixed-output_files', use '%fixed-output-files' [-Wdeprecated]
1881 input.y:18.1-19: warning: deprecated directive: '%fixed_output-files', use '%fixed-output-files' [-Wdeprecated]
1882 input.y:20.1-13: warning: deprecated directive: '%name-prefix=', use '%name-prefix' [-Wdeprecated]
1883 input.y:21.1-16: warning: deprecated directive: '%no-default_prec', use '%no-default-prec' [-Wdeprecated]
1884 input.y:22.1-16: warning: deprecated directive: '%no_default-prec', use '%no-default-prec' [-Wdeprecated]
1885 input.y:23.1-9: warning: deprecated directive: '%no_lines', use '%no-lines' [-Wdeprecated]
1886 input.y:24.1-9: warning: deprecated directive: '%output =', use '%output' [-Wdeprecated]
1887 input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%pure-parser' [-Wdeprecated]
1888 input.y:26.1-12: warning: deprecated directive: '%token_table', use '%token-table' [-Wdeprecated]
1889 ]])
1890
1891 AT_CLEANUP
1892
1893 ## ---------------------------- ##
1894 ## Unput's effect on locations. ##
1895 ## ---------------------------- ##
1896 dnl When the scanner detects a deprecated construct, it unputs the correct
1897 dnl version, but it should *not* have any impact on the scanner cursor. If it
1898 dnl does, the locations of directives on the same line become erroneous.
1899
1900 AT_SETUP([[Unput's effect on locations]])
1901
1902 AT_KEYWORDS([[deprec]])
1903
1904 AT_DATA_GRAMMAR([[input.y]],
1905 [[
1906 %glr-parser
1907 %expect_rr 42 %expect_rr 42
1908               %expect_rr 42
1909 %error_verbose %error_verbose
1910                %error_verbose
1911 %% exp: '0'
1912 ]])
1913
1914 AT_BISON_CHECK([[input.y]], [[1]], [[]],
1915 [[input.y:11.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1916 input.y:11.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1917 input.y:12.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
1918 input.y:13.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1919 input.y:13.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1920 input.y:13.11-21: error: %define variable 'parse.error' redefined
1921 input.y:13-6:         previous definition
1922 input.y:14.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
1923 input.y:14.11-21: error: %define variable 'parse.error' redefined
1924 input.y:13.11-21:     previous definition
1925 ]])
1926
1927 AT_CLEANUP
1928
1929 ##--------------------------- ##
1930 ## Non-deprecated directives. ##
1931 ## -------------------------- ##
1932
1933 AT_SETUP([[Non-deprecated directives]])
1934
1935 AT_KEYWORDS([[deprec]])
1936
1937 AT_DATA_GRAMMAR([[input.y]],
1938 [[
1939 %default-prec
1940 %error-verbose
1941 %expect-rr 42
1942 %file-prefix "foo"
1943 %file-prefix
1944 "bar"
1945 %fixed-output-files
1946 %name-prefix "foo"
1947 %no-default-prec
1948 %no-lines
1949 %output "foo"
1950 %pure-parser
1951 %token-table
1952 %% exp : '0'
1953 ]])
1954
1955 AT_BISON_CHECK([[input.y]], [[0]], [[]],
1956 [[input.y: warning: %expect-rr applies only to GLR parsers [-Wother]
1957 ]])
1958
1959 AT_CLEANUP