Parser.hpp

   1 /* Cycript - Remove Execution Server and Disassembler
   2  * Copyright (C) 2009  Jay Freeman (saurik)
   3 */
   4
   5 /* Modified BSD License {{{ */
   6 /*
   7  *        Redistribution and use in source and binary
   8  * forms, with or without modification, are permitted
   9  * provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the
  12  *    above copyright notice, this list of conditions
  13  *    and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the
  15  *    above copyright notice, this list of conditions
  16  *    and the following disclaimer in the documentation
  17  *    and/or other materials provided with the
  18  *    distribution.
  19  * 3. The name of the author may not be used to endorse
  20  *    or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
  24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  25  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  26  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  33  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  34  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  35  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37 */
  38 /* }}} */
  39
  40 #ifndef CYPARSER_HPP
  41 #define CYPARSER_HPP
  42
  43 #include <cstdlib>
  44 #include <string>
  45 #include <vector>
  46
  47 #include "location.hh"
  48 #include "Pooling.hpp"
  49
  50 template <typename Type_>
  51 struct CYNext {
  52     Type_ *next_;
  53
  54     CYNext() :
  55         next_(NULL)
  56     {
  57     }
  58
  59     CYNext(Type_ *next) :
  60         next_(next)
  61     {
  62     }
  63
  64     void SetNext(Type_ *next) {
  65         next_ = next;
  66     }
  67 };
  68
  69 struct CYThing {
  70     virtual void Output(std::ostream &out) const = 0;
  71 };
  72
  73 _finline std::ostream &operator <<(std::ostream &out, const CYThing &rhs) {
  74     rhs.Output(out);
  75     return out;
  76 }
  77
  78 struct CYSource :
  79     CYNext<CYSource>
  80 {
  81     virtual bool IsBlock() const {
  82         return next_ != NULL;
  83     }
  84
  85     virtual void Show(std::ostream &out) const;
  86     virtual void Output(std::ostream &out) const = 0;
  87     virtual void Output(std::ostream &out, bool block) const;
  88     virtual void Output_(std::ostream &out) const;
  89 };
  90
  91 struct CYPropertyName {
  92     virtual void PropertyName(std::ostream &out) const = 0;
  93 };
  94
  95 struct CYClassName {
  96     virtual void ClassName(std::ostream &out) const = 0;
  97 };
  98
  99 struct CYWord :
 100     CYThing,
 101     CYPropertyName,
 102     CYClassName
 103 {
 104     const char *word_;
 105
 106     CYWord(const char *word) :
 107         word_(word)
 108     {
 109     }
 110
 111     const char *Value() const {
 112         return word_;
 113     }
 114
 115     virtual void Output(std::ostream &out) const;
 116
 117     virtual void ClassName(std::ostream &out) const;
 118     virtual void PropertyName(std::ostream &out) const;
 119 };
 120
 121 struct CYIdentifier :
 122     CYWord
 123 {
 124     CYIdentifier(const char *word) :
 125         CYWord(word)
 126     {
 127     }
 128 };
 129
 130 struct CYLabel :
 131     CYNext<CYLabel>
 132 {
 133     CYIdentifier *name_;
 134
 135     CYLabel(CYIdentifier *name, CYLabel *next) :
 136         CYNext<CYLabel>(next),
 137         name_(name)
 138     {
 139     }
 140 };
 141
 142 struct CYStatement :
 143     CYSource
 144 {
 145     CYLabel *labels_;
 146
 147     CYStatement() :
 148         labels_(NULL)
 149     {
 150     }
 151
 152     void AddLabel(CYIdentifier *identifier) {
 153         labels_ = new CYLabel(identifier, labels_);
 154     }
 155
 156     virtual void Output_(std::ostream &out) const;
 157 };
 158
 159 struct CYBlock :
 160     CYStatement
 161 {
 162     CYStatement *statements_;
 163
 164     CYBlock(CYStatement *statements) :
 165         statements_(statements)
 166     {
 167     }
 168
 169     virtual bool IsBlock() const {
 170         return true;
 171     }
 172
 173     virtual void Output(std::ostream &out) const;
 174 };
 175
 176 enum CYState {
 177     CYClear,
 178     CYRestricted,
 179     CYNewLine
 180 };
 181
 182 class CYDriver {
 183   public:
 184     CYPool pool_;
 185
 186     CYState state_;
 187     void *scanner_;
 188
 189     const char *data_;
 190     size_t size_;
 191     FILE *file_;
 192
 193     std::string filename_;
 194
 195     struct Error {
 196         cy::location location_;
 197         std::string message_;
 198     };
 199
 200     typedef std::vector<Error> Errors;
 201
 202     CYSource *source_;
 203     Errors errors_;
 204
 205   private:
 206     void ScannerInit();
 207     void ScannerDestroy();
 208
 209   public:
 210     CYDriver(const std::string &filename);
 211     ~CYDriver();
 212 };
 213
 214 struct CYPart {
 215     virtual void Part(std::ostream &out) const = 0;
 216 };
 217
 218 struct CYForInitialiser :
 219     CYPart
 220 {
 221 };
 222
 223 struct CYForInInitialiser :
 224     CYPart
 225 {
 226 };
 227
 228 enum CYFlags {
 229     CYNoFlags =    0,
 230     CYNoBrace =    (1 << 0),
 231     CYNoFunction = (1 << 1),
 232     CYNoLeader =   (1 << 2),
 233     CYNoTrailer =  (1 << 3),
 234     CYNoIn =       (1 << 4),
 235     CYNoHyphen =   (1 << 5),
 236 };
 237
 238 struct CYExpression :
 239     CYNext<CYExpression>,
 240     CYForInitialiser,
 241     CYForInInitialiser,
 242     CYClassName
 243 {
 244     virtual unsigned Precedence() const = 0;
 245     virtual void Part(std::ostream &out) const;
 246     virtual void Output(std::ostream &out, CYFlags flags) const = 0;
 247     void Output(std::ostream &out, unsigned precedence, CYFlags flags) const;
 248
 249     virtual void ClassName(std::ostream &out) const;
 250
 251     virtual const char *Word() const {
 252         return NULL;
 253     }
 254 };
 255
 256 #define CYAlphabetic(value) \
 257     virtual bool Alphabetic() const { \
 258         return value; \
 259     }
 260
 261 #define CYPrecedence(value) \
 262     virtual unsigned Precedence() const { \
 263         return value; \
 264     }
 265
 266 struct CYCompound :
 267     CYExpression
 268 {
 269     CYExpression *expressions_;
 270
 271     CYCompound(CYExpression *expressions) :
 272         expressions_(expressions)
 273     {
 274     }
 275
 276     void AddPrev(CYExpression *expression) {
 277         CYExpression *last(expression);
 278         while (last->next_ != NULL)
 279             last = last->next_;
 280         last->SetNext(expressions_);
 281         expressions_ = expression;
 282     }
 283
 284     CYPrecedence(17)
 285
 286     void Output(std::ostream &out, CYFlags flags) const;
 287 };
 288
 289 struct CYLiteral :
 290     CYExpression
 291 {
 292     CYPrecedence(0)
 293 };
 294
 295 struct CYMagic :
 296     CYExpression
 297 {
 298     CYPrecedence(0)
 299 };
 300
 301 struct CYSelectorPart :
 302     CYNext<CYSelectorPart>
 303 {
 304     CYWord *name_;
 305     bool value_;
 306
 307     CYSelectorPart(CYWord *name, bool value, CYSelectorPart *next) :
 308         CYNext<CYSelectorPart>(next),
 309         name_(name),
 310         value_(value)
 311     {
 312     }
 313
 314     virtual void Output(std::ostream &out) const;
 315 };
 316
 317 struct CYSelector :
 318     CYLiteral
 319 {
 320     CYSelectorPart *name_;
 321
 322     CYSelector(CYSelectorPart *name) :
 323         name_(name)
 324     {
 325     }
 326
 327     CYPrecedence(1)
 328
 329     virtual void Output(std::ostream &out, CYFlags flags) const;
 330 };
 331
 332 struct CYRange {
 333     uint64_t lo_;
 334     uint64_t hi_;
 335
 336     CYRange(uint64_t lo, uint64_t hi) :
 337         lo_(lo), hi_(hi)
 338     {
 339     }
 340
 341     bool operator [](uint8_t value) const {
 342         return !(value >> 7) && (value >> 6 ? hi_ : lo_) >> (value & 0x3f) & 0x1;
 343     }
 344
 345     void operator()(uint8_t value) {
 346         if (value >> 7)
 347             return;
 348         (value >> 6 ? hi_ : lo_) |= uint64_t(0x1) << (value & 0x3f);
 349     }
 350 };
 351
 352 extern CYRange DigitRange_;
 353 extern CYRange WordStartRange_;
 354 extern CYRange WordEndRange_;
 355
 356 struct CYString :
 357     CYLiteral,
 358     CYPropertyName
 359 {
 360     const char *value_;
 361     size_t size_;
 362
 363     CYString(const char *value, size_t size) :
 364         value_(value),
 365         size_(size)
 366     {
 367     }
 368
 369     CYString(const CYIdentifier *identifier) :
 370         value_(identifier->Value()),
 371         size_(strlen(value_))
 372     {
 373     }
 374
 375     const char *Value() const {
 376         return value_;
 377     }
 378
 379     virtual const char *Word() const {
 380         if (size_ == 0 || !WordStartRange_[value_[0]])
 381             return NULL;
 382         for (size_t i(1); i != size_; ++i)
 383             if (!WordEndRange_[value_[i]])
 384                 return NULL;
 385         return Value();
 386     }
 387
 388     virtual void Output(std::ostream &out) const {
 389         return Output(out, CYNoFlags);
 390     }
 391
 392     virtual void Output(std::ostream &out, CYFlags flags) const;
 393     virtual void PropertyName(std::ostream &out) const;
 394 };
 395
 396 struct CYNumber :
 397     CYLiteral,
 398     CYPropertyName
 399 {
 400     double value_;
 401
 402     CYNumber(double value) :
 403         value_(value)
 404     {
 405     }
 406
 407     double Value() const {
 408         return value_;
 409     }
 410
 411     virtual void Output(std::ostream &out) const {
 412         return Output(out, CYNoFlags);
 413     }
 414
 415     virtual void Output(std::ostream &out, CYFlags flags) const;
 416     virtual void PropertyName(std::ostream &out) const;
 417 };
 418
 419 struct CYNull :
 420     CYWord,
 421     CYLiteral
 422 {
 423     CYNull() :
 424         CYWord("null")
 425     {
 426     }
 427
 428     virtual void Output(std::ostream &out, CYFlags flags) const;
 429 };
 430
 431 struct CYThis :
 432     CYWord,
 433     CYMagic
 434 {
 435     CYThis() :
 436         CYWord("this")
 437     {
 438     }
 439
 440     virtual void Output(std::ostream &out, CYFlags flags) const;
 441 };
 442
 443 struct CYBoolean :
 444     CYLiteral
 445 {
 446     virtual bool Value() const = 0;
 447     virtual void Output(std::ostream &out, CYFlags flags) const;
 448 };
 449
 450 struct CYFalse :
 451     CYWord,
 452     CYBoolean
 453 {
 454     CYFalse() :
 455         CYWord("false")
 456     {
 457     }
 458
 459     virtual bool Value() const;
 460 };
 461
 462 struct CYTrue :
 463     CYWord,
 464     CYBoolean
 465 {
 466     CYTrue() :
 467         CYWord("true")
 468     {
 469     }
 470
 471     virtual bool Value() const;
 472 };
 473
 474 struct CYVariable :
 475     CYExpression
 476 {
 477     CYIdentifier *name_;
 478
 479     CYVariable(CYIdentifier *name) :
 480         name_(name)
 481     {
 482     }
 483
 484     CYPrecedence(0)
 485
 486     virtual void Output(std::ostream &out, CYFlags flags) const;
 487 };
 488
 489 struct CYPrefix :
 490     CYExpression
 491 {
 492     CYExpression *rhs_;
 493
 494     CYPrefix(CYExpression *rhs) :
 495         rhs_(rhs)
 496     {
 497     }
 498
 499     virtual bool Alphabetic() const = 0;
 500     virtual const char *Operator() const = 0;
 501
 502     virtual void Output(std::ostream &out, CYFlags flags) const;
 503 };
 504
 505 struct CYInfix :
 506     CYExpression
 507 {
 508     CYExpression *lhs_;
 509     CYExpression *rhs_;
 510
 511     CYInfix(CYExpression *lhs, CYExpression *rhs) :
 512         lhs_(lhs),
 513         rhs_(rhs)
 514     {
 515     }
 516
 517     void SetLeft(CYExpression *lhs) {
 518         lhs_ = lhs;
 519     }
 520
 521     virtual bool Alphabetic() const = 0;
 522     virtual const char *Operator() const = 0;
 523
 524     virtual void Output(std::ostream &out, CYFlags flags) const;
 525 };
 526
 527 struct CYPostfix :
 528     CYExpression
 529 {
 530     CYExpression *lhs_;
 531
 532     CYPostfix(CYExpression *lhs) :
 533         lhs_(lhs)
 534     {
 535     }
 536
 537     virtual const char *Operator() const = 0;
 538
 539     virtual void Output(std::ostream &out, CYFlags flags) const;
 540 };
 541
 542 struct CYAssignment :
 543     CYExpression
 544 {
 545     CYExpression *lhs_;
 546     CYExpression *rhs_;
 547
 548     CYAssignment(CYExpression *lhs, CYExpression *rhs) :
 549         lhs_(lhs),
 550         rhs_(rhs)
 551     {
 552     }
 553
 554     void SetLeft(CYExpression *lhs) {
 555         lhs_ = lhs;
 556     }
 557
 558     virtual const char *Operator() const = 0;
 559
 560     virtual void Output(std::ostream &out, CYFlags flags) const;
 561 };
 562
 563 struct CYArgument :
 564     CYNext<CYArgument>
 565 {
 566     CYWord *name_;
 567     CYExpression *value_;
 568
 569     CYArgument(CYWord *name, CYExpression *value, CYArgument *next = NULL) :
 570         CYNext<CYArgument>(next),
 571         name_(name),
 572         value_(value)
 573     {
 574     }
 575
 576     void Output(std::ostream &out) const;
 577 };
 578
 579 struct CYBlank :
 580     public CYWord
 581 {
 582     CYBlank() :
 583         CYWord("")
 584     {
 585     }
 586 };
 587
 588 struct CYClause :
 589     CYThing,
 590     CYNext<CYClause>
 591 {
 592     CYExpression *case_;
 593     CYStatement *code_;
 594
 595     CYClause(CYExpression *_case, CYStatement *code) :
 596         case_(_case),
 597         code_(code)
 598     {
 599     }
 600
 601     virtual void Output(std::ostream &out) const;
 602 };
 603
 604 struct CYElement :
 605     CYNext<CYElement>
 606 {
 607     CYExpression *value_;
 608
 609     CYElement(CYExpression *value, CYElement *next) :
 610         CYNext<CYElement>(next),
 611         value_(value)
 612     {
 613     }
 614
 615     void Output(std::ostream &out) const;
 616 };
 617
 618 struct CYArray :
 619     CYLiteral
 620 {
 621     CYElement *elements_;
 622
 623     CYArray(CYElement *elements) :
 624         elements_(elements)
 625     {
 626     }
 627
 628     virtual void Output(std::ostream &out, CYFlags flags) const;
 629 };
 630
 631 struct CYDeclaration :
 632     CYThing,
 633     CYForInInitialiser
 634 {
 635     CYIdentifier *identifier_;
 636     CYExpression *initialiser_;
 637
 638     CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser) :
 639         identifier_(identifier),
 640         initialiser_(initialiser)
 641     {
 642     }
 643
 644     virtual void Part(std::ostream &out) const;
 645     virtual void Output(std::ostream &out) const;
 646 };
 647
 648 struct CYDeclarations :
 649     CYStatement,
 650     CYForInitialiser
 651 {
 652     CYDeclaration *declaration_;
 653     CYDeclarations *next_;
 654
 655     CYDeclarations(CYDeclaration *declaration, CYDeclarations *next) :
 656         declaration_(declaration),
 657         next_(next)
 658     {
 659     }
 660
 661     virtual void Part(std::ostream &out) const;
 662     virtual void Output(std::ostream &out) const;
 663 };
 664
 665 struct CYField :
 666     CYNext<CYField>
 667 {
 668     virtual void Output(std::ostream &out) const;
 669 };
 670
 671 struct CYMessageParameter :
 672     CYNext<CYMessageParameter>
 673 {
 674     CYWord *tag_;
 675     CYExpression *type_;
 676     CYIdentifier *name_;
 677
 678     CYMessageParameter(CYWord *tag, CYExpression *type, CYIdentifier *name) :
 679         tag_(tag),
 680         type_(type),
 681         name_(name)
 682     {
 683     }
 684 };
 685
 686 struct CYMessage :
 687     CYNext<CYMessage>
 688 {
 689     bool instance_;
 690     CYExpression *type_;
 691     CYMessageParameter *parameter_;
 692     CYSource *body_;
 693
 694     CYMessage(bool instance, CYExpression *type, CYMessageParameter *parameter, CYSource *body) :
 695         instance_(instance),
 696         type_(type),
 697         parameter_(parameter),
 698         body_(body)
 699     {
 700     }
 701
 702     virtual void Output(std::ostream &out, bool replace) const;
 703 };
 704
 705 struct CYClass :
 706     CYSource
 707 {
 708     CYIdentifier *name_;
 709     CYExpression *super_;
 710     CYField *fields_;
 711     CYMessage *messages_;
 712
 713     CYClass(CYIdentifier *name, CYExpression *super, CYField *fields, CYMessage *messages) :
 714         name_(name),
 715         super_(super),
 716         fields_(fields),
 717         messages_(messages)
 718     {
 719     }
 720
 721     virtual void Output(std::ostream &out) const;
 722 };
 723
 724 struct CYCategory :
 725     CYSource
 726 {
 727     CYClassName *name_;
 728     CYMessage *messages_;
 729
 730     CYCategory(CYClassName *name, CYMessage *messages) :
 731         name_(name),
 732         messages_(messages)
 733     {
 734     }
 735
 736     virtual void Output(std::ostream &out) const;
 737 };
 738
 739 struct CYFunctionParameter :
 740     CYNext<CYFunctionParameter>,
 741     CYThing
 742 {
 743     CYIdentifier *name_;
 744
 745     CYFunctionParameter(CYIdentifier *name, CYFunctionParameter *next) :
 746         CYNext<CYFunctionParameter>(next),
 747         name_(name)
 748     {
 749     }
 750
 751     virtual void Output(std::ostream &out) const;
 752 };
 753
 754 struct CYFor :
 755     CYStatement
 756 {
 757     CYForInitialiser *initialiser_;
 758     CYExpression *test_;
 759     CYExpression *increment_;
 760     CYStatement *code_;
 761
 762     CYFor(CYForInitialiser *initialiser, CYExpression *test, CYExpression *increment, CYStatement *code) :
 763         initialiser_(initialiser),
 764         test_(test),
 765         increment_(increment),
 766         code_(code)
 767     {
 768     }
 769
 770     virtual void Output(std::ostream &out) const;
 771 };
 772
 773 struct CYForIn :
 774     CYStatement
 775 {
 776     CYForInInitialiser *initialiser_;
 777     CYExpression *set_;
 778     CYStatement *code_;
 779
 780     CYForIn(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
 781         initialiser_(initialiser),
 782         set_(set),
 783         code_(code)
 784     {
 785     }
 786
 787     virtual void Output(std::ostream &out) const;
 788 };
 789
 790 struct CYProperty :
 791     CYNext<CYProperty>
 792 {
 793     CYPropertyName *name_;
 794     CYExpression *value_;
 795
 796     CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next) :
 797         CYNext<CYProperty>(next),
 798         name_(name),
 799         value_(value)
 800     {
 801     }
 802
 803     virtual void Output(std::ostream &out) const;
 804 };
 805
 806 struct CYObject :
 807     CYLiteral
 808 {
 809     CYProperty *property_;
 810
 811     CYObject(CYProperty *property) :
 812         property_(property)
 813     {
 814     }
 815
 816     void Output(std::ostream &out, CYFlags flags) const;
 817 };
 818
 819 struct CYCatch :
 820     CYThing
 821 {
 822     CYIdentifier *name_;
 823     CYStatement *code_;
 824
 825     CYCatch(CYIdentifier *name, CYStatement *code) :
 826         name_(name),
 827         code_(code)
 828     {
 829     }
 830
 831     virtual void Output(std::ostream &out) const;
 832 };
 833
 834 struct CYSend :
 835     CYExpression
 836 {
 837     CYExpression *self_;
 838     CYArgument *arguments_;
 839
 840     CYSend(CYExpression *self, CYArgument *arguments) :
 841         self_(self),
 842         arguments_(arguments)
 843     {
 844     }
 845
 846     CYPrecedence(0)
 847
 848     virtual void Output(std::ostream &out, CYFlags flags) const;
 849 };
 850
 851 struct CYMember :
 852     CYExpression
 853 {
 854     CYExpression *object_;
 855     CYExpression *property_;
 856
 857     CYMember(CYExpression *object, CYExpression *property) :
 858         object_(object),
 859         property_(property)
 860     {
 861     }
 862
 863     void SetLeft(CYExpression *object) {
 864         object_ = object;
 865     }
 866 };
 867
 868 struct CYDirectMember :
 869     CYMember
 870 {
 871     CYDirectMember(CYExpression *object, CYExpression *property) :
 872         CYMember(object, property)
 873     {
 874     }
 875
 876     CYPrecedence(1)
 877
 878     virtual void Output(std::ostream &out, CYFlags flags) const;
 879 };
 880
 881 struct CYIndirectMember :
 882     CYMember
 883 {
 884     CYIndirectMember(CYExpression *object, CYExpression *property) :
 885         CYMember(object, property)
 886     {
 887     }
 888
 889     CYPrecedence(1)
 890
 891     virtual void Output(std::ostream &out, CYFlags flags) const;
 892 };
 893
 894 struct CYNew :
 895     CYExpression
 896 {
 897     CYExpression *constructor_;
 898     CYArgument *arguments_;
 899
 900     CYNew(CYExpression *constructor, CYArgument *arguments) :
 901         constructor_(constructor),
 902         arguments_(arguments)
 903     {
 904     }
 905
 906     CYPrecedence(1)
 907
 908     virtual void Output(std::ostream &out, CYFlags flags) const;
 909 };
 910
 911 struct CYCall :
 912     CYExpression
 913 {
 914     CYExpression *function_;
 915     CYArgument *arguments_;
 916
 917     CYCall(CYExpression *function, CYArgument *arguments) :
 918         function_(function),
 919         arguments_(arguments)
 920     {
 921     }
 922
 923     CYPrecedence(2)
 924
 925     virtual void Output(std::ostream &out, CYFlags flags) const;
 926 };
 927
 928 struct CYIf :
 929     CYStatement
 930 {
 931     CYExpression *test_;
 932     CYStatement *true_;
 933     CYStatement *false_;
 934
 935     CYIf(CYExpression *test, CYStatement *_true, CYStatement *_false) :
 936         test_(test),
 937         true_(_true),
 938         false_(_false)
 939     {
 940     }
 941
 942     virtual void Output(std::ostream &out) const;
 943 };
 944
 945 struct CYDoWhile :
 946     CYStatement
 947 {
 948     CYExpression *test_;
 949     CYStatement *code_;
 950
 951     CYDoWhile(CYExpression *test, CYStatement *code) :
 952         test_(test),
 953         code_(code)
 954     {
 955     }
 956
 957     virtual void Output(std::ostream &out) const;
 958 };
 959
 960 struct CYWhile :
 961     CYStatement
 962 {
 963     CYExpression *test_;
 964     CYStatement *code_;
 965
 966     CYWhile(CYExpression *test, CYStatement *code) :
 967         test_(test),
 968         code_(code)
 969     {
 970     }
 971
 972     virtual void Output(std::ostream &out) const;
 973 };
 974
 975 struct CYLambda :
 976     CYExpression
 977 {
 978     CYIdentifier *name_;
 979     CYFunctionParameter *parameters_;
 980     CYSource *body_;
 981
 982     CYLambda(CYIdentifier *name, CYFunctionParameter *parameters, CYSource *body) :
 983         name_(name),
 984         parameters_(parameters),
 985         body_(body)
 986     {
 987     }
 988
 989     CYPrecedence(0)
 990
 991     virtual void Output(std::ostream &out, CYFlags flags) const;
 992 };
 993
 994 struct CYFunction :
 995     CYLambda,
 996     CYSource
 997 {
 998     CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYSource *body) :
 999         CYLambda(name, parameters, body)
1000     {
1001     }
1002
1003     virtual void Output(std::ostream &out) const;
1004 };
1005
1006 struct CYExpress :
1007     CYStatement
1008 {
1009     CYExpression *expression_;
1010
1011     CYExpress(CYExpression *expression) :
1012         expression_(expression)
1013     {
1014     }
1015
1016     virtual void Output(std::ostream &out) const;
1017 };
1018
1019 struct CYContinue :
1020     CYStatement
1021 {
1022     CYIdentifier *label_;
1023
1024     CYContinue(CYIdentifier *label) :
1025         label_(label)
1026     {
1027     }
1028
1029     virtual void Output(std::ostream &out) const;
1030 };
1031
1032 struct CYBreak :
1033     CYStatement
1034 {
1035     CYIdentifier *label_;
1036
1037     CYBreak(CYIdentifier *label) :
1038         label_(label)
1039     {
1040     }
1041
1042     virtual void Output(std::ostream &out) const;
1043 };
1044
1045 struct CYReturn :
1046     CYStatement
1047 {
1048     CYExpression *value_;
1049
1050     CYReturn(CYExpression *value) :
1051         value_(value)
1052     {
1053     }
1054
1055     virtual void Output(std::ostream &out) const;
1056 };
1057
1058 struct CYEmpty :
1059     CYStatement
1060 {
1061     virtual void Output(std::ostream &out) const;
1062     virtual void Output(std::ostream &out, bool block) const;
1063 };
1064
1065 struct CYTry :
1066     CYStatement
1067 {
1068     CYStatement *try_;
1069     CYCatch *catch_;
1070     CYStatement *finally_;
1071
1072     CYTry(CYStatement *_try, CYCatch *_catch, CYStatement *finally) :
1073         try_(_try),
1074         catch_(_catch),
1075         finally_(finally)
1076     {
1077     }
1078
1079     virtual void Output(std::ostream &out) const;
1080 };
1081
1082 struct CYThrow :
1083     CYStatement
1084 {
1085     CYExpression *value_;
1086
1087     CYThrow(CYExpression *value) :
1088         value_(value)
1089     {
1090     }
1091
1092     virtual void Output(std::ostream &out) const;
1093 };
1094
1095 struct CYWith :
1096     CYStatement
1097 {
1098     CYExpression *scope_;
1099     CYStatement *code_;
1100
1101     CYWith(CYExpression *scope, CYStatement *code) :
1102         scope_(scope),
1103         code_(code)
1104     {
1105     }
1106
1107     virtual void Output(std::ostream &out) const;
1108 };
1109
1110 struct CYSwitch :
1111     CYStatement
1112 {
1113     CYExpression *value_;
1114     CYClause *clauses_;
1115
1116     CYSwitch(CYExpression *value, CYClause *clauses) :
1117         value_(value),
1118         clauses_(clauses)
1119     {
1120     }
1121
1122     virtual void Output(std::ostream &out) const;
1123 };
1124
1125 struct CYCondition :
1126     CYExpression
1127 {
1128     CYExpression *test_;
1129     CYExpression *true_;
1130     CYExpression *false_;
1131
1132     CYCondition(CYExpression *test, CYExpression *_true, CYExpression *_false) :
1133         test_(test),
1134         true_(_true),
1135         false_(_false)
1136     {
1137     }
1138
1139     CYPrecedence(15)
1140
1141     virtual void Output(std::ostream &out, CYFlags flags) const;
1142 };
1143
1144 struct CYAddressOf :
1145     CYPrefix
1146 {
1147     CYAddressOf(CYExpression *rhs) :
1148         CYPrefix(rhs)
1149     {
1150     }
1151
1152     virtual const char *Operator() const {
1153         return "&";
1154     }
1155
1156     CYAlphabetic(false)
1157     CYPrecedence(2)
1158
1159     virtual void Output(std::ostream &out, CYFlags flags) const;
1160 };
1161
1162 struct CYIndirect :
1163     CYPrefix
1164 {
1165     CYIndirect(CYExpression *rhs) :
1166         CYPrefix(rhs)
1167     {
1168     }
1169
1170     virtual const char *Operator() const {
1171         return "*";
1172     }
1173
1174     CYAlphabetic(false)
1175     CYPrecedence(1)
1176
1177     virtual void Output(std::ostream &out, CYFlags flags) const;
1178 };
1179
1180 #define CYPostfix_(op, name) \
1181     struct CY ## name : \
1182         CYPostfix \
1183     { \
1184         CY ## name(CYExpression *lhs) : \
1185             CYPostfix(lhs) \
1186         { \
1187         } \
1188     \
1189         CYPrecedence(3) \
1190     \
1191         virtual const char *Operator() const { \
1192             return op; \
1193         } \
1194     };
1195
1196 #define CYPrefix_(alphabetic, op, name) \
1197     struct CY ## name : \
1198         CYPrefix \
1199     { \
1200         CY ## name(CYExpression *rhs) : \
1201             CYPrefix(rhs) \
1202         { \
1203         } \
1204     \
1205         CYAlphabetic(alphabetic) \
1206         CYPrecedence(4) \
1207     \
1208         virtual const char *Operator() const { \
1209             return op; \
1210         } \
1211     };
1212
1213 #define CYInfix_(alphabetic, precedence, op, name) \
1214     struct CY ## name : \
1215         CYInfix \
1216     { \
1217         CY ## name(CYExpression *lhs, CYExpression *rhs) : \
1218             CYInfix(lhs, rhs) \
1219         { \
1220         } \
1221     \
1222         CYAlphabetic(alphabetic) \
1223         CYPrecedence(precedence) \
1224     \
1225         virtual const char *Operator() const { \
1226             return op; \
1227         } \
1228     };
1229
1230 #define CYAssignment_(op, name) \
1231     struct CY ## name ## Assign : \
1232         CYAssignment \
1233     { \
1234         CY ## name ## Assign(CYExpression *lhs, CYExpression *rhs) : \
1235             CYAssignment(lhs, rhs) \
1236         { \
1237         } \
1238     \
1239         CYPrecedence(16) \
1240     \
1241         virtual const char *Operator() const { \
1242             return op; \
1243         } \
1244     };
1245
1246 CYPostfix_("++", PostIncrement)
1247 CYPostfix_("--", PostDecrement)
1248
1249 CYPrefix_(true, "delete", Delete)
1250 CYPrefix_(true, "void", Void)
1251 CYPrefix_(true, "typeof", TypeOf)
1252 CYPrefix_(false, "++", PreIncrement)
1253 CYPrefix_(false, "--", PreDecrement)
1254 CYPrefix_(false, "-", Negate)
1255 CYPrefix_(false, "~", BitwiseNot)
1256 CYPrefix_(false, "!", LogicalNot)
1257
1258 CYInfix_(false, 5, "*", Multiply)
1259 CYInfix_(false, 5, "/", Divide)
1260 CYInfix_(false, 5, "%", Modulus)
1261 CYInfix_(false, 6, "+", Add)
1262 CYInfix_(false, 6, "-", Subtract)
1263 CYInfix_(false, 7, "<<", ShiftLeft)
1264 CYInfix_(false, 7, ">>", ShiftRightSigned)
1265 CYInfix_(false, 7, ">>>", ShiftRightUnsigned)
1266 CYInfix_(false, 8, "<", Less)
1267 CYInfix_(false, 8, ">", Greater)
1268 CYInfix_(false, 8, "<=", LessOrEqual)
1269 CYInfix_(false, 8, ">=", GreaterOrEqual)
1270 CYInfix_(true, 8, "instanceof", InstanceOf)
1271 CYInfix_(true, 8, "in", In)
1272 CYInfix_(false, 9, "==", Equal)
1273 CYInfix_(false, 9, "!=", NotEqual)
1274 CYInfix_(false, 9, "===", Identical)
1275 CYInfix_(false, 9, "!==", NotIdentical)
1276 CYInfix_(false, 10, "&", BitwiseAnd)
1277 CYInfix_(false, 11, "^", BitwiseXOr)
1278 CYInfix_(false, 12, "|", BitwiseOr)
1279 CYInfix_(false, 13, "&&", LogicalAnd)
1280 CYInfix_(false, 14, "||", LogicalOr)
1281
1282 CYAssignment_("=", )
1283 CYAssignment_("*=", Multiply)
1284 CYAssignment_("/=", Divide)
1285 CYAssignment_("%=", Modulus)
1286 CYAssignment_("+=", Add)
1287 CYAssignment_("-=", Subtract)
1288 CYAssignment_("<<=", ShiftLeft)
1289 CYAssignment_(">>=", ShiftRightSigned)
1290 CYAssignment_(">>>=", ShiftRightUnsigned)
1291 CYAssignment_("&=", BitwiseAnd)
1292 CYAssignment_("^=", BitwiseXOr)
1293 CYAssignment_("|=", BitwiseOr)
1294
1295 #endif/*CYPARSER_HPP*/