tests/java.at

   1 # Java tests for simple calculator.           -*- Autotest -*-
   2
   3 # Copyright (C) 2007-2012 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([[Java Calculator.]])
  19
  20
  21 # ------------------------- #
  22 # Helping Autotest macros.  #
  23 # ------------------------- #
  24
  25
  26 # _AT_DATA_JAVA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
  27 # ----------------------------------------------------------------------
  28 # Produce `calc.y'.  Don't call this macro directly, because it contains
  29 # some occurrences of `$1' etc. which will be interpreted by m4.  So
  30 # you should call it with $1, $2, and $3 as arguments, which is what
  31 # AT_DATA_JAVA_CALC_Y does.
  32 m4_define([_AT_DATA_JAVA_CALC_Y],
  33 [m4_if([$1$2$3], $[1]$[2]$[3], [],
  34        [m4_fatal([$0: Invalid arguments: $@])])dnl
  35 AT_BISON_OPTION_PUSHDEFS([%language "Java" $4])
  36 AT_DATA([Calc.y],
  37 [[/* Infix notation calculator--calc */
  38 %language "Java"
  39 %name-prefix "Calc"
  40 %define parser_class_name "Calc"
  41 %define public
  42
  43 ]$4[
  44
  45 %code imports {
  46   import java.io.StreamTokenizer;
  47   import java.io.InputStream;
  48   import java.io.InputStreamReader;
  49   import java.io.Reader;
  50   import java.io.IOException;
  51 }
  52
  53 /* Bison Declarations */
  54 %token <Integer> NUM "number"
  55 %type  <Integer> exp
  56
  57 %nonassoc '=' /* comparison            */
  58 %left '-' '+'
  59 %left '*' '/'
  60 %left NEG     /* negation--unary minus */
  61 %right '^'    /* exponentiation        */
  62
  63 /* Grammar follows */
  64 %%
  65 input:
  66   line
  67 | input line
  68 ;
  69
  70 line:
  71   '\n'
  72 | exp '\n'
  73 | error '\n'
  74 ;
  75
  76 exp:
  77   NUM                { $$ = $1;                                             }
  78 | exp '=' exp
  79   {
  80     if ($1.intValue () != $3.intValue ())
  81       yyerror (]AT_LOCATION_IF([[@$,]])[ "calc: error: " + $1 + " != " + $3);
  82   }
  83 | exp '+' exp        { $$ = new Integer ($1.intValue () + $3.intValue ());  }
  84 | exp '-' exp        { $$ = new Integer ($1.intValue () - $3.intValue ());  }
  85 | exp '*' exp        { $$ = new Integer ($1.intValue () * $3.intValue ());  }
  86 | exp '/' exp        { $$ = new Integer ($1.intValue () / $3.intValue ());  }
  87 | '-' exp  %prec NEG { $$ = new Integer (-$2.intValue ());                  }
  88 | exp '^' exp        { $$ = new Integer ((int)
  89                                          Math.pow ($1.intValue (),
  90                                                    $3.intValue ()));        }
  91 | '(' exp ')'        { $$ = $2;                                             }
  92 | '(' error ')'      { $$ = new Integer (1111);                             }
  93 | '!'                { $$ = new Integer (0); return YYERROR;                }
  94 | '-' error          { $$ = new Integer (0); return YYERROR;                }
  95 ;
  96
  97 ]AT_LEXPARAM_IF([[
  98 %code lexer {
  99 ]],
 100 [[
 101 %%
 102 class CalcLexer implements Calc.Lexer {
 103 ]])[
 104   StreamTokenizer st;
 105
 106   public ]AT_LEXPARAM_IF([[YYLexer]], [[CalcLexer]]) (InputStream is)
 107   {
 108     st = new StreamTokenizer (new InputStreamReader (is));
 109     st.resetSyntax ();
 110     st.eolIsSignificant (true);
 111     st.whitespaceChars (9, 9);
 112     st.whitespaceChars (32, 32);
 113     st.wordChars (48, 57);
 114   }
 115
 116 AT_LOCATION_IF([[
 117   Position yypos = new Position (1, 0);
 118
 119   public Position getStartPos() {
 120     return yypos;
 121   }
 122
 123   public Position getEndPos() {
 124     return yypos;
 125   }
 126 ]])[
 127   ]AT_YYERROR_DEFINE[
 128
 129   Integer yylval;
 130
 131   public Object getLVal() {
 132     return yylval;
 133   }
 134
 135   public int yylex () throws IOException {
 136     int ttype = st.nextToken ();
 137     ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno (),
 138                                             yypos.token () + 1);]])[
 139     if (ttype == st.TT_EOF)
 140       return Calc.EOF;
 141
 142     else if (ttype == st.TT_EOL)
 143       {
 144         ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno () + 1, 0);]])[
 145         return (int) '\n';
 146       }
 147
 148     else if (ttype == st.TT_WORD)
 149       {
 150         yylval = new Integer (st.sval);
 151         return Calc.NUM;
 152       }
 153
 154     else
 155       return st.ttype;
 156   }
 157
 158
 159 ]AT_LEXPARAM_IF([[
 160 };
 161 %%]], [[
 162 }]])
 163
 164 [
 165 class Position {
 166   public int line;
 167   public int token;
 168
 169   public Position ()
 170   {
 171     line = 0;
 172     token = 0;
 173   }
 174
 175   public Position (int l, int t)
 176   {
 177     line = l;
 178     token = t;
 179   }
 180
 181   public boolean equals (Position l)
 182   {
 183     return l.line == line && l.token == token;
 184   }
 185
 186   public String toString ()
 187   {
 188     return Integer.toString (line) + "." + Integer.toString(token);
 189   }
 190
 191   public int lineno ()
 192   {
 193     return line;
 194   }
 195
 196   public int token ()
 197   {
 198     return token;
 199   }
 200 }
 201
 202 ]])
 203 AT_BISON_OPTION_POPDEFS
 204 ])# _AT_DATA_JAVA_CALC_Y
 205
 206
 207 # AT_DATA_CALC_Y([BISON-OPTIONS])
 208 # -------------------------------
 209 # Produce `calc.y'.
 210 m4_define([AT_DATA_JAVA_CALC_Y],
 211 [_AT_DATA_JAVA_CALC_Y($[1], $[2], $[3], [$1])
 212 ])
 213
 214
 215 # _AT_CHECK_JAVA_CALC_ERROR(BISON-OPTIONS, INPUT,
 216 #                           [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
 217 # --------------------------------------------------------------
 218 # Run `calc' on INPUT, and expect a `syntax error' message.
 219 #
 220 # If INPUT starts with a slash, it is used as absolute input file name,
 221 # otherwise as contents.
 222 #
 223 # The VERBOSE-AND-LOCATED-ERROR-MESSAGE is stripped of locations
 224 # and expected tokens if necessary, and compared with the output.
 225 m4_define([_AT_CHECK_JAVA_CALC_ERROR],
 226 [m4_bmatch([$2], [^/],
 227            [AT_JAVA_PARSER_CHECK([Calc < $2], 0, [], [stderr])],
 228            [AT_DATA([[input]],
 229 [[$2
 230 ]])
 231 AT_JAVA_PARSER_CHECK([Calc < input], 0, [], [stderr])])
 232
 233 # Normalize the observed and expected error messages, depending upon the
 234 # options.
 235 # 1. Create the reference error message.
 236 AT_DATA([[expout]],
 237 [$3
 238 ])
 239 # 2. If locations are not used, remove them.
 240 AT_YYERROR_SEES_LOC_IF([],
 241 [[sed 's/^[-0-9.]*: //' expout >at-expout
 242 mv at-expout expout]])
 243 # 3. If error-verbose is not used, strip the`, unexpected....' part.
 244 m4_bmatch([$1], [%error-verbose], [],
 245 [[sed 's/syntax error, .*$/syntax error/' expout >at-expout
 246 mv at-expout expout]])
 247 # 4. Check
 248 AT_CHECK([cat stderr], 0, [expout])
 249 ])
 250
 251 # _AT_CHECK_JAVA_CALC([BISON-DIRECTIVES], [BISON-CODE])
 252 # -----------------------------------------------------------------------
 253 # Start a testing chunk which compiles `calc' grammar with
 254 # BISON-DIRECTIVES, and performs several tests over the parser.
 255 m4_define([_AT_CHECK_JAVA_CALC],
 256 [# We use integers to avoid dependencies upon the precision of doubles.
 257 AT_SETUP([Calculator $1])
 258
 259 AT_BISON_OPTION_PUSHDEFS([$1])
 260
 261 AT_DATA_JAVA_CALC_Y([$1
 262 %code {
 263 $2
 264 }])
 265
 266 AT_BISON_CHECK([-o Calc.java Calc.y])
 267 AT_JAVA_COMPILE([Calc.java])
 268
 269 # Test the priorities.
 270 AT_DATA([[input]],
 271 [[1 + 2 * 3 = 7
 272 1 + 2 * -3 = -5
 273
 274 -1^2 = -1
 275 (-1)^2 = 1
 276
 277 ---1 = -1
 278
 279 1 - 2 - 3 = -4
 280 1 - (2 - 3) = 2
 281
 282 2^2^3 = 256
 283 (2^2)^3 = 64
 284 ]])
 285 AT_JAVA_PARSER_CHECK([Calc < input], 0, [], [stderr])
 286
 287
 288 # Some syntax errors.
 289 _AT_CHECK_JAVA_CALC_ERROR([$1], [0 0],
 290                           [1.2: syntax error, unexpected number])
 291 _AT_CHECK_JAVA_CALC_ERROR([$1], [1//2],
 292                           [1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
 293 _AT_CHECK_JAVA_CALC_ERROR([$1], [error],
 294                           [1.1: syntax error, unexpected $undefined])
 295 _AT_CHECK_JAVA_CALC_ERROR([$1], [1 = 2 = 3],
 296                           [1.4: syntax error, unexpected '='])
 297 _AT_CHECK_JAVA_CALC_ERROR([$1], [
 298 +1],
 299                           [2.1: syntax error, unexpected '+'])
 300 # Exercise error messages with EOF: work on an empty file.
 301 _AT_CHECK_JAVA_CALC_ERROR([$1], [/dev/null],
 302                           [1.1: syntax error, unexpected end of input])
 303
 304 # Exercise the error token: without it, we die at the first error,
 305 # hence be sure to
 306 #
 307 # - have several errors which exercise different shift/discardings
 308 #   - (): nothing to pop, nothing to discard
 309 #   - (1 + 1 + 1 +): a lot to pop, nothing to discard
 310 #   - (* * *): nothing to pop, a lot to discard
 311 #   - (1 + 2 * *): some to pop and discard
 312 #
 313 # - test the action associated to `error'
 314 #
 315 # - check the lookahead that triggers an error is not discarded
 316 #   when we enter error recovery.  Below, the lookahead causing the
 317 #   first error is ")", which is needed to recover from the error and
 318 #   produce the "0" that triggers the "0 != 1" error.
 319 #
 320 _AT_CHECK_JAVA_CALC_ERROR([$1],
 321                           [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
 322 [1.2: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
 323 1.11: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
 324 1.14: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
 325 1.24: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
 326 1.1-1.27: calc: error: 4444 != 1])
 327
 328 # The same, but this time exercising explicitly triggered syntax errors.
 329 # POSIX says the lookahead causing the error should not be discarded.
 330 _AT_CHECK_JAVA_CALC_ERROR([$1], [(!) + (0 0) = 1],
 331 [1.7: syntax error, unexpected number
 332 1.1-1.10: calc: error: 2222 != 1])
 333 _AT_CHECK_JAVA_CALC_ERROR([$1], [(- *) + (0 0) = 1],
 334 [1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
 335 1.8: syntax error, unexpected number
 336 1.1-1.11: calc: error: 2222 != 1])
 337 AT_BISON_OPTION_POPDEFS
 338
 339 AT_CLEANUP
 340 ])# _AT_CHECK_JAVA_CALC
 341
 342
 343 # AT_CHECK_JAVA_CALC([BISON-DIRECTIVES])
 344 # --------------------------------------------------------
 345 # Start a testing chunk which compiles `calc' grammar with
 346 # BISON-DIRECTIVES, and performs several tests over the parser.
 347 # Run the test with and without %error-verbose.
 348 m4_define([AT_CHECK_JAVA_CALC],
 349 [_AT_CHECK_JAVA_CALC([$1], [$2])
 350 _AT_CHECK_JAVA_CALC([%error-verbose $1], [$2])
 351 _AT_CHECK_JAVA_CALC([%locations $1], [$2])
 352 _AT_CHECK_JAVA_CALC([%error-verbose %locations $1], [$2])
 353 ])# AT_CHECK_JAVA_CALC
 354
 355
 356 # ------------------------ #
 357 # Simple LALR Calculator.  #
 358 # ------------------------ #
 359
 360 AT_CHECK_JAVA_CALC([], [[
 361   public static void main (String args[]) throws IOException
 362   {
 363     CalcLexer l = new CalcLexer (System.in);
 364     Calc p = new Calc (l);
 365     p.parse ();
 366   }
 367 ]])
 368
 369 AT_CHECK_JAVA_CALC([%lex-param { InputStream is } ], [[
 370   public static void main (String args[]) throws IOException
 371   {
 372     new Calc (System.in).parse ();
 373   }
 374 ]])
 375
 376
 377
 378 # -----------------#
 379 # Java Directives. #
 380 # -----------------#
 381
 382 AT_BANNER([Java Parameters.])
 383
 384
 385 # AT_CHECK_JAVA_MINIMAL([DIRECTIVES], [PARSER_ACTION], [POSITION_CLASS])
 386 # ----------------------------------------------------------------------
 387 # Check that a mininal parser with DIRECTIVES compiles in Java.
 388 # Put the Java code in YYParser.java.
 389 m4_define([AT_CHECK_JAVA_MINIMAL],
 390 [
 391 AT_DATA([[YYParser.y]], [
 392 %language "Java"
 393 %locations
 394 %debug
 395 %error-verbose
 396 %token-table
 397 $1
 398 %%
 399 start: "end" {$2};
 400 %%
 401 class m4_default([$3], [Position]) {}
 402 ])
 403 AT_BISON_CHECK([[YYParser.y]])
 404 AT_CHECK([[grep '[mb]4_' YYParser.y]], [1], [ignore])
 405 AT_JAVA_COMPILE([[YYParser.java]])
 406 ])
 407
 408
 409 # AT_CHECK_JAVA_MINIMAL_W_LEXER([1:DIRECTIVES], [2:LEX_THROWS],
 410 #       [3:YYLEX_ACTION], [4:LEXER_BODY], [5:PARSER_ACTION], [6:STYPE],
 411 #       [7:POSITION_TYPE], [8:LOCATION_TYPE])
 412 # ---------------------------------------------------------------------
 413 # Check that a mininal parser with DIRECTIVES and a "%code lexer".
 414 # YYLEX is the body of yylex () which throws LEX_THROW.
 415 # compiles in Java.
 416 m4_define([AT_CHECK_JAVA_MINIMAL_W_LEXER],
 417 [AT_CHECK_JAVA_MINIMAL([$1
 418
 419 %code lexer
 420 {
 421   m4_default([$6], [Object]) yylval;
 422   public m4_default([$6], [Object]) getLVal() { return yylval; }
 423
 424   public m4_default([$7], [Position]) getStartPos() { return null; }
 425   public m4_default([$7], [Position]) getEndPos()   { return null; }
 426
 427   public void yyerror (m4_default([$8], [Location]) loc, String s)
 428   {
 429     System.err.println (loc + ": " + s);
 430   }
 431
 432   public int yylex ()$2
 433   {
 434     $3
 435   }
 436
 437   $4
 438 }], [$5], [$7])])
 439
 440
 441 # AT_CHECK_JAVA_GREP([LINE], [COUNT=1])
 442 # -------------------------------------
 443 # Check that YYParser.java contains exactly COUNT lines matching ^LINE$
 444 # with grep.
 445 m4_define([AT_CHECK_JAVA_GREP],
 446         [AT_CHECK([grep -c '^$1$' YYParser.java], [], [m4_default([$2], [1])
 447 ])
 448 ])
 449
 450
 451 # ----------------------------------- #
 452 # Java parser class and package names #
 453 # ----------------------------------- #
 454
 455 AT_SETUP([Java parser class and package names])
 456
 457 AT_CHECK_JAVA_MINIMAL([])
 458 AT_CHECK_JAVA_GREP([[class YYParser]])
 459
 460 AT_CHECK_JAVA_MINIMAL([[%name-prefix "Prefix"]])
 461 AT_CHECK_JAVA_GREP([[class PrefixParser]])
 462
 463 AT_CHECK_JAVA_MINIMAL([[%define parser_class_name "ParserClassName"]])
 464 AT_CHECK_JAVA_GREP([[class ParserClassName]])
 465
 466 AT_CHECK_JAVA_MINIMAL([[%define package "user_java_package"]])
 467 AT_CHECK_JAVA_GREP([[package user_java_package;]])
 468
 469 AT_CLEANUP
 470
 471
 472 # --------------------------- #
 473 # Java parser class modifiers #
 474 # --------------------------- #
 475
 476 AT_SETUP([Java parser class modifiers])
 477
 478 AT_CHECK_JAVA_MINIMAL([[%define abstract]])
 479 AT_CHECK_JAVA_GREP([[abstract class YYParser]])
 480
 481 AT_CHECK_JAVA_MINIMAL([[%define final]])
 482 AT_CHECK_JAVA_GREP([[final class YYParser]])
 483
 484 AT_CHECK_JAVA_MINIMAL([[%define strictfp]])
 485 AT_CHECK_JAVA_GREP([[strictfp class YYParser]])
 486
 487 AT_CHECK_JAVA_MINIMAL([[
 488 %define abstract
 489 %define strictfp]])
 490 AT_CHECK_JAVA_GREP([[abstract strictfp class YYParser]])
 491
 492 AT_CHECK_JAVA_MINIMAL([[
 493 %define final
 494 %define strictfp]])
 495 AT_CHECK_JAVA_GREP([[final strictfp class YYParser]])
 496
 497 AT_CHECK_JAVA_MINIMAL([[%define public]])
 498 AT_CHECK_JAVA_GREP([[public class YYParser]])
 499
 500 AT_CHECK_JAVA_MINIMAL([[
 501 %define public
 502 %define abstract]])
 503 AT_CHECK_JAVA_GREP([[public abstract class YYParser]])
 504
 505 AT_CHECK_JAVA_MINIMAL([[
 506 %define public
 507 %define final]])
 508 AT_CHECK_JAVA_GREP([[public final class YYParser]])
 509
 510 AT_CHECK_JAVA_MINIMAL([[
 511 %define public
 512 %define strictfp]])
 513 AT_CHECK_JAVA_GREP([[public strictfp class YYParser]])
 514
 515 AT_CHECK_JAVA_MINIMAL([[
 516 %define public
 517 %define abstract
 518 %define strictfp]])
 519 AT_CHECK_JAVA_GREP([[public abstract strictfp class YYParser]])
 520
 521 AT_CHECK_JAVA_MINIMAL([[
 522 %define public
 523 %define final
 524 %define strictfp]])
 525 AT_CHECK_JAVA_GREP([[public final strictfp class YYParser]])
 526
 527 AT_CLEANUP
 528
 529
 530 # ---------------------------------------- #
 531 # Java parser class extends and implements #
 532 # ---------------------------------------- #
 533
 534 AT_SETUP([Java parser class extends and implements])
 535
 536 AT_CHECK_JAVA_MINIMAL([[%define extends "Thread"]])
 537 AT_CHECK_JAVA_GREP([[class YYParser extends Thread]])
 538
 539 AT_CHECK_JAVA_MINIMAL([[%define implements "Cloneable"]])
 540 AT_CHECK_JAVA_GREP([[class YYParser implements Cloneable]])
 541
 542 AT_CHECK_JAVA_MINIMAL([[
 543 %define extends "Thread"
 544 %define implements "Cloneable"]])
 545 AT_CHECK_JAVA_GREP([[class YYParser extends Thread implements Cloneable]])
 546
 547 AT_CLEANUP
 548
 549
 550 # -------------------------------- #
 551 # Java %parse-param and %lex-param #
 552 # -------------------------------- #
 553
 554 AT_SETUP([Java %parse-param and %lex-param])
 555
 556 AT_CHECK_JAVA_MINIMAL([])
 557 AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer) {]])
 558
 559 AT_CHECK_JAVA_MINIMAL([[%parse-param {int parse_param1}]])
 560 AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
 561 AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1) {]])
 562 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param1 = parse_param1;]])
 563
 564 AT_CHECK_JAVA_MINIMAL([[
 565 %parse-param {int parse_param1}
 566 %parse-param {long parse_param2}]])
 567 AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
 568 AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
 569 AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
 570 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param1 = parse_param1;]])
 571 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param2 = parse_param2;]])
 572
 573 AT_CHECK_JAVA_MINIMAL_W_LEXER([], [], [[return EOF;]])
 574 AT_CHECK_JAVA_GREP([[ *public YYParser () {]])
 575 AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer) {]])
 576
 577 AT_CHECK_JAVA_MINIMAL_W_LEXER([[%parse-param {int parse_param1}]],
 578         [], [[return EOF;]])
 579 AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
 580 AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1) {]])
 581 AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1) {]])
 582 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param1 = parse_param1;]], [2])
 583
 584 AT_CHECK_JAVA_MINIMAL_W_LEXER([[
 585 %parse-param {int parse_param1}
 586 %parse-param {long parse_param2}]],
 587         [], [[return EOF;]])
 588 AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
 589 AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
 590 AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1, *long parse_param2) {]])
 591 AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
 592 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param1 = parse_param1;]], [2])
 593 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param2 = parse_param2;]], [2])
 594
 595 AT_CHECK_JAVA_MINIMAL_W_LEXER([[%lex-param {char lex_param1}]],
 596         [], [[return EOF;]], [[YYLexer (char lex_param1) {}]])
 597 AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1) {]])
 598 AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1);]])
 599
 600 AT_CHECK_JAVA_MINIMAL_W_LEXER([[
 601 %lex-param {char lex_param1}
 602 %lex-param {short lex_param2}]],
 603         [], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
 604 AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2) {]])
 605 AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
 606
 607 AT_CHECK_JAVA_MINIMAL_W_LEXER([[
 608 %parse-param {int parse_param1}
 609 %parse-param {long parse_param2}
 610 %lex-param {char lex_param1}
 611 %lex-param {short lex_param2}]],
 612         [], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
 613 AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
 614 AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
 615 AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2, *int parse_param1, *long parse_param2) {]])
 616 AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
 617 AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
 618 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param1 = parse_param1;]], [2])
 619 AT_CHECK_JAVA_GREP([[[   ]*this.parse_param2 = parse_param2;]], [2])
 620
 621 AT_CLEANUP
 622
 623
 624 # ------------------------- #
 625 # Java throw specifications #
 626 # ------------------------- #
 627
 628 AT_SETUP([Java throws specifications])
 629
 630 # %define throws        - 0 1 2
 631 # %define lex-throws    - 0 1 2
 632 # %code lexer             0 1
 633
 634 m4_define([AT_JT_lex_throws_define], [m4_case(AT_JT_lex_throws,
 635         -1, [],
 636          0, [[%define lex_throws ""]],
 637          1, [[%define lex_throws "InterruptedException"]],
 638          2, [[%define lex_throws "InterruptedException, IllegalAccessException"]])])
 639
 640 m4_define([AT_JT_yylex_throws], [m4_case(AT_JT_lex_throws,
 641         -1, [[ throws java.io.IOException]],
 642          0, [],
 643          1, [[ throws InterruptedException]],
 644          2, [[ throws InterruptedException, IllegalAccessException]])])
 645
 646 m4_define([AT_JT_yylex_action], [m4_case(AT_JT_lex_throws,
 647         -1, [[throw new java.io.IOException();]],
 648          0, [[return EOF;]],
 649          1, [[throw new InterruptedException();]],
 650          2, [[throw new IllegalAccessException();]])])
 651
 652
 653 m4_define([AT_JT_throws_define], [m4_case(AT_JT_throws,
 654         -1, [],
 655          0, [[%define throws ""]],
 656          1, [[%define throws "ClassNotFoundException"]],
 657          2, [[%define throws "ClassNotFoundException, InstantiationException"]])])
 658
 659 m4_define([AT_JT_yyaction_throws], [m4_case(AT_JT_throws,
 660         -1, [],
 661          0, [],
 662          1, [[ throws ClassNotFoundException]],
 663          2, [[ throws ClassNotFoundException, InstantiationException]])])
 664
 665 m4_define([AT_JT_parse_throws_2], [m4_case(AT_JT_throws,
 666         -1, [],
 667          0, [],
 668          1, [[, ClassNotFoundException]],
 669          2, [[, ClassNotFoundException, InstantiationException]])])
 670
 671 m4_define([AT_JT_parse_throws],
 672         [m4_if(m4_quote(AT_JT_yylex_throws), [],
 673                 [AT_JT_yyaction_throws],
 674                 [AT_JT_yylex_throws[]AT_JT_parse_throws_2])])
 675
 676 m4_define([AT_JT_initial_action], [m4_case(AT_JT_throws,
 677         -1, [],
 678          0, [],
 679          1, [[%initial-action {if (true) throw new ClassNotFoundException();}]],
 680          2, [[%initial-action {if (true) throw new InstantiationException();}]])])
 681
 682 m4_define([AT_JT_parse_action], [m4_case(AT_JT_throws,
 683         -1, [],
 684          0, [],
 685          1, [[throw new ClassNotFoundException();]],
 686          2, [[throw new ClassNotFoundException();]])])
 687
 688 m4_for([AT_JT_lexer], 0, 1, 1,
 689   [m4_for([AT_JT_lex_throws], -1, 2, 1,
 690     [m4_for([AT_JT_throws], -1, 2, 1,
 691       [m4_if(AT_JT_lexer, 0,
 692         [AT_CHECK_JAVA_MINIMAL([
 693 AT_JT_throws_define
 694 AT_JT_lex_throws_define
 695 AT_JT_initial_action],
 696 [AT_JT_parse_action])],
 697         [AT_CHECK_JAVA_MINIMAL_W_LEXER([
 698 AT_JT_throws_define
 699 AT_JT_lex_throws_define
 700 AT_JT_initial_action],
 701 [AT_JT_yylex_throws],
 702 [AT_JT_yylex_action],
 703 [],
 704 [AT_JT_parse_action])])
 705 AT_CHECK_JAVA_GREP([[ *int yylex ()]AT_JT_yylex_throws *[;]])
 706 AT_CHECK_JAVA_GREP([[ *private int yyaction ([^)]*)]AT_JT_yyaction_throws[ *]])
 707 AT_CHECK_JAVA_GREP([[ *public boolean parse ()]AT_JT_parse_throws[ *]])
 708 ])])])
 709
 710 AT_CLEANUP
 711
 712
 713 # --------------------------------------------- #
 714 # Java stype, position_class and location_class #
 715 # --------------------------------------------- #
 716
 717 AT_SETUP([Java stype, position_class and location_class])
 718
 719 AT_CHECK_JAVA_MINIMAL([[
 720 %define stype "java.awt.Color"
 721 %type<java.awt.Color> start;
 722 %define location_type "MyLoc"
 723 %define position_type "MyPos"
 724 %code { class MyPos {} }]], [[$$ = $<java.awt.Color>1;]], [[MyPos]])
 725 AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
 726 AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
 727 AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
 728
 729 AT_CHECK_JAVA_MINIMAL_W_LEXER([[
 730 %define stype "java.awt.Color"
 731 %type<java.awt.Color> start;
 732 %define location_type "MyLoc"
 733 %define position_type "MyPos"
 734 %code { class MyPos {} }]], [], [[return EOF;]], [],
 735 [[$$ = $<java.awt.Color>1;]],
 736 [[java.awt.Color]], [[MyPos]], [[MyLoc]])
 737 AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
 738 AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
 739 AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
 740
 741 AT_CLEANUP
 742
 743
 744 # ----------------------------------------------- #
 745 # Java syntax error handling without error token. #
 746 # ----------------------------------------------- #
 747
 748 AT_SETUP([Java syntax error handling without error token])
 749
 750 AT_DATA([[YYParser.y]], [[%language "Java"
 751
 752 %lex-param { String s }
 753
 754 %code imports {
 755   import java.io.IOException;
 756 }
 757
 758 %code lexer {
 759   String Input;
 760   int Position;
 761
 762   public YYLexer (String s)
 763   {
 764     Input    = s;
 765     Position = 0;
 766   }
 767
 768   public void yyerror (String s)
 769   {
 770     System.err.println (s);
 771   }
 772
 773   public Object getLVal ()
 774   {
 775     return null;
 776   }
 777
 778   public int yylex () throws IOException
 779   {
 780     if (Position >= Input.length ())
 781       return EOF;
 782     else
 783       return Input.charAt (Position++);
 784   }
 785 }
 786
 787 %code {
 788   public static void main (String args []) throws IOException
 789   {
 790     YYParser p = new YYParser (args [0]);
 791     p.parse ();
 792   }
 793 }
 794 %%
 795 input:
 796   'a' 'a'
 797 ;
 798 ]])
 799 AT_BISON_CHECK([[YYParser.y]])
 800 AT_JAVA_COMPILE([[YYParser.java]])
 801 AT_JAVA_PARSER_CHECK([[YYParser aa]], [[0]], [[]], [[]])
 802 AT_JAVA_PARSER_CHECK([[YYParser ab]], [[0]], [[]], [[syntax error
 803 ]])
 804 AT_JAVA_PARSER_CHECK([[YYParser ba]], [[0]], [[]], [[syntax error
 805 ]])
 806
 807 AT_CLEANUP