Parser.ypp.in

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 %code top {
  23 #define YYSTACKEXPANDABLE 1
  24 }
  25
  26 %code requires {
  27 #include "Driver.hpp"
  28 #include "Parser.hpp"
  29 #include "Stack.hpp"
  30 #define CYNew new(driver.pool_)
  31
  32 @begin ObjectiveC
  33 #include "ObjectiveC/Syntax.hpp"
  34 @end
  35
  36 @begin E4X
  37 #include "E4X/Syntax.hpp"
  38 @end
  39
  40 #include "Highlight.hpp"
  41 }
  42
  43 %union { bool bool_; }
  44
  45 %union { CYMember *access_; }
  46 %union { CYArgument *argument_; }
  47 %union { CYAssignment *assignment_; }
  48 %union { CYBinding *binding_; }
  49 %union { CYBindings *bindings_; }
  50 %union { CYBoolean *boolean_; }
  51 %union { CYClause *clause_; }
  52 %union { cy::Syntax::Catch *catch_; }
  53 %union { CYClassTail *classTail_; }
  54 %union { CYComprehension *comprehension_; }
  55 %union { CYElement *element_; }
  56 %union { CYExpression *expression_; }
  57 %union { CYFalse *false_; }
  58 %union { CYVariable *variable_; }
  59 %union { CYFinally *finally_; }
  60 %union { CYForInitializer *for_; }
  61 %union { CYForInInitializer *forin_; }
  62 %union { CYFunctionParameter *functionParameter_; }
  63 %union { CYIdentifier *identifier_; }
  64 %union { CYInfix *infix_; }
  65 %union { CYLiteral *literal_; }
  66 %union { CYMethod *method_; }
  67 %union { CYModule *module_; }
  68 %union { CYNull *null_; }
  69 %union { CYNumber *number_; }
  70 %union { CYParenthetical *parenthetical_; }
  71 %union { CYProperty *property_; }
  72 %union { CYPropertyName *propertyName_; }
  73 %union { CYRubyProc *rubyProc_; }
  74 %union { CYSpan *span_; }
  75 %union { CYStatement *statement_; }
  76 %union { CYString *string_; }
  77 %union { CYTarget *target_; }
  78 %union { CYThis *this_; }
  79 %union { CYTrue *true_; }
  80 %union { CYWord *word_; }
  81
  82 @begin C
  83 %union { CYTypeStructField *structField_; }
  84 %union { CYTypeModifier *modifier_; }
  85 %union { CYTypeSpecifier *specifier_; }
  86 %union { CYTypedIdentifier *typedIdentifier_; }
  87 %union { CYTypedParameter *typedParameter_; }
  88 @end
  89
  90 @begin ObjectiveC
  91 %union { CYImplementationField *implementationField_; }
  92 %union { CYMessage *message_; }
  93 %union { CYMessageParameter *messageParameter_; }
  94 %union { CYProtocol *protocol_; }
  95 %union { CYSelectorPart *selector_; }
  96 @end
  97
  98 @begin E4X
  99 %union { CYAttribute *attribute_; }
 100 %union { CYPropertyIdentifier *propertyIdentifier_; }
 101 %union { CYSelector *selector_; }
 102 @end
 103
 104 %code provides {
 105
 106 struct YYSTYPE {
 107     cy::parser::semantic_type semantic_;
 108     hi::Value highlight_;
 109 };
 110
 111 int cylex(YYSTYPE *, CYLocation *, void *);
 112
 113 }
 114
 115 %code {
 116
 117 #undef yylex
 118
 119 typedef cy::parser::token tk;
 120
 121 _finline int cylex_(cy::parser::semantic_type *semantic, CYLocation *location, CYDriver &driver) {
 122     driver.newline_ = false;
 123   lex:
 124     YYSTYPE data;
 125     int token(cylex(&data, location, driver.scanner_));
 126     *semantic = data.semantic_;
 127
 128     switch (token) {
 129         case tk::OpenBrace:
 130         case tk::OpenBracket:
 131         case tk::OpenParen:
 132             driver.in_.push(false);
 133         break;
 134
 135         case tk::_in_:
 136             if (driver.in_.top())
 137                 token = tk::_in__;
 138         break;
 139
 140         case tk::CloseBrace:
 141         case tk::CloseBracket:
 142         case tk::CloseParen:
 143             driver.in_.pop();
 144         break;
 145
 146
 147         case tk::_yield_:
 148             if (driver.yield_.top())
 149                 token = tk::_yield__;
 150         break;
 151
 152         case tk::NewLine:
 153             driver.newline_ = true;
 154             goto lex;
 155         break;
 156     }
 157
 158     return token;
 159 }
 160
 161 #define yylex_(semantic, location, driver) ({ \
 162     int type; \
 163     if (driver.hold_ == cy::parser::empty_symbol) \
 164         type = yytranslate_(cylex_(semantic, location, driver)); \
 165     else { \
 166         type = driver.hold_; \
 167         driver.hold_ = cy::parser::empty_symbol; \
 168     } \
 169 type; })
 170
 171 #define CYLEX() do if (yyla.empty()) { \
 172     YYCDEBUG << "Mapping a token: "; \
 173     yyla.type = yylex_(&yyla.value, &yyla.location, driver); \
 174     YY_SYMBOL_PRINT("Next token is", yyla); \
 175 } while (false)
 176
 177 #define CYMAP(to, from) do { \
 178     CYLEX(); \
 179     if (yyla.type == yytranslate_(token::from)) \
 180         yyla.type = yytranslate_(token::to); \
 181 } while (false)
 182
 183 #define CYERR(location, message) do { \
 184     error(location, message); \
 185     YYABORT; \
 186 } while (false)
 187
 188 #define CYEOK() do { \
 189     yyerrok; \
 190     driver.errors_.pop_back(); \
 191 } while (false)
 192
 193 #define CYNOT(location) \
 194     CYERR(location, "unimplemented feature")
 195
 196 #define CYMPT(location) do { \
 197     if (!yyla.empty() && yyla.type_get() != yyeof_) \
 198         CYERR(location, "unexpected lookahead"); \
 199 } while (false)
 200
 201 }
 202
 203 %name-prefix "cy"
 204
 205 %language "C++"
 206
 207 %initial-action {
 208     @$.begin.filename = @$.end.filename = &driver.filename_;
 209
 210     switch (driver.mark_) {
 211         case CYMarkScript:
 212             driver.hold_ = yytranslate_(token::MarkScript);
 213             break;
 214         case CYMarkModule:
 215             driver.hold_ = yytranslate_(token::MarkModule);
 216             break;
 217     }
 218 };
 219
 220 %locations
 221 %defines
 222
 223 %define api.location.type { CYLocation }
 224
 225 //%glr-parser
 226 //%expect 1
 227
 228 %error-verbose
 229
 230 %param { CYDriver &driver }
 231
 232 /* Token Declarations {{{ */
 233 @begin E4X
 234 %token XMLCDATA
 235 %token XMLComment
 236 %token XMLPI
 237
 238 %token XMLAttributeValue
 239 %token XMLName
 240 %token XMLTagCharacters
 241 %token XMLText
 242 %token XMLWhitespace
 243 @end
 244
 245 @begin E4X
 246 %token LeftRight "<>"
 247 %token LeftSlashRight "</>"
 248
 249 %token SlashRight "/>"
 250 %token LeftSlash "</"
 251
 252 %token ColonColon "::"
 253 %token PeriodPeriod ".."
 254 @end
 255
 256 @begin E4X ObjectiveC
 257 %token At "@"
 258 %token Pound "#"
 259 @end
 260
 261 %token Ampersand "&"
 262 %token AmpersandAmpersand "&&"
 263 %token AmpersandEqual "&="
 264 %token Carrot "^"
 265 %token CarrotEqual "^="
 266 %token Equal "="
 267 %token EqualEqual "=="
 268 %token EqualEqualEqual "==="
 269 %token EqualRight "=>"
 270 %token Exclamation "!"
 271 %token ExclamationEqual "!="
 272 %token ExclamationEqualEqual "!=="
 273 %token Hyphen "-"
 274 %token HyphenEqual "-="
 275 %token HyphenHyphen "--"
 276 %token HyphenRight "->"
 277 %token Left "<"
 278 %token LeftEqual "<="
 279 %token LeftLeft "<<"
 280 %token LeftLeftEqual "<<="
 281 %token Percent "%"
 282 %token PercentEqual "%="
 283 %token Period "."
 284 %token PeriodPeriodPeriod "..."
 285 %token Pipe "|"
 286 %token PipeEqual "|="
 287 %token PipePipe "||"
 288 %token Plus "+"
 289 %token PlusEqual "+="
 290 %token PlusPlus "++"
 291 %token Right ">"
 292 %token RightEqual ">="
 293 %token RightRight ">>"
 294 %token RightRightEqual ">>="
 295 %token RightRightRight ">>>"
 296 %token RightRightRightEqual ">>>="
 297 %token Slash "/"
 298 %token SlashEqual "/="
 299 %token Star "*"
 300 %token StarEqual "*="
 301 %token Tilde "~"
 302
 303 %token Colon ":"
 304 %token Comma ","
 305 %token Question "?"
 306 %token SemiColon ";"
 307 %token NewLine "\n"
 308 %token __ ""
 309
 310 %token Comment
 311
 312 %token OpenParen "("
 313 %token CloseParen ")"
 314
 315 %token OpenBrace "{"
 316 %token OpenBrace_ ";{"
 317 %token OpenBrace_let "let {"
 318 %token CloseBrace "}"
 319
 320 %token OpenBracket "["
 321 %token OpenBracket_let "let ["
 322 %token CloseBracket "]"
 323
 324 %token At_error_ "@error"
 325
 326 @begin Java
 327 %token At_class_ "@class"
 328 @end
 329
 330 @begin C
 331 %token _typedef_ "typedef"
 332 %token _unsigned_ "unsigned"
 333 %token _signed_ "signed"
 334 %token _struct_ "struct"
 335 %token _extern_ "extern"
 336 @end
 337
 338 @begin C
 339 %token At_encode_ "@encode"
 340 @end
 341
 342 @begin ObjectiveC
 343 %token At_implementation_ "@implementation"
 344 %token At_import_ "@import"
 345 %token At_end_ "@end"
 346 %token At_selector_ "@selector"
 347 %token At_null_ "@null"
 348 %token At_YES_ "@YES"
 349 %token At_NO_ "@NO"
 350 %token At_true_ "@true"
 351 %token At_false_ "@false"
 352 %token _YES_ "YES"
 353 %token _NO_ "NO"
 354 @end
 355
 356 %token _false_ "false"
 357 %token _null_ "null"
 358 %token _true_ "true"
 359
 360 %token _break_ "break"
 361 %token _case_ "case"
 362 %token _catch_ "catch"
 363 %token _class_ "class"
 364 %token _class__ ";class"
 365 %token _const_ "const"
 366 %token _continue_ "continue"
 367 %token _debugger_ "debugger"
 368 %token _default_ "default"
 369 %token _delete_ "delete"
 370 %token _do_ "do"
 371 %token _else_ "else"
 372 %token _enum_ "enum"
 373 %token _export_ "export"
 374 %token _extends_ "extends"
 375 %token _finally_ "finally"
 376 %token _for_ "for"
 377 %token _function_ "function"
 378 %token _function__ ";function"
 379 %token _if_ "if"
 380 %token _import_ "import"
 381 %token _in_ "in"
 382 %token _in__ "!in"
 383 %token _Infinity_ "Infinity"
 384 %token _instanceof_ "instanceof"
 385 %token _new_ "new"
 386 %token _return_ "return"
 387 %token _super_ "super"
 388 %token _switch_ "switch"
 389 %token _target_ "target"
 390 %token _this_ "this"
 391 %token _throw_ "throw"
 392 %token _try_ "try"
 393 %token _typeof_ "typeof"
 394 %token _var_ "var"
 395 %token _void_ "void"
 396 %token _while_ "while"
 397 %token _with_ "with"
 398
 399 %token _abstract_ "abstract"
 400 %token _await_ "await"
 401 %token _boolean_ "boolean"
 402 %token _byte_ "byte"
 403 %token _char_ "char"
 404 %token _constructor_ "constructor"
 405 %token _double_ "double"
 406 %token _eval_ "eval"
 407 %token _final_ "final"
 408 %token _float_ "float"
 409 %token _from_ "from"
 410 %token _get_ "get"
 411 %token _goto_ "goto"
 412 %token _implements_ "implements"
 413 %token _int_ "int"
 414 %token _interface_ "interface"
 415 %token _let_ "let"
 416 %token _let__ "!let"
 417 %token _long_ "long"
 418 %token _native_ "native"
 419 %token _package_ "package"
 420 %token _private_ "private"
 421 %token _protected_ "protected"
 422 %token _prototype_ "prototype"
 423 %token _public_ "public"
 424 %token _set_ "set"
 425 %token _short_ "short"
 426 %token _static_ "static"
 427 %token _synchronized_ "synchronized"
 428 %token _throws_ "throws"
 429 %token _transient_ "transient"
 430 %token _volatile_ "volatile"
 431 %token _yield_ "yield"
 432 %token _yield__ "!yield"
 433
 434 %token _undefined_ "undefined"
 435
 436 @begin ObjectiveC
 437 %token _bool_ "bool"
 438 %token _BOOL_ "BOOL"
 439 %token _id_ "id"
 440 %token _nil_ "nil"
 441 %token _NULL_ "NULL"
 442 %token _SEL_ "SEL"
 443 @end
 444
 445 %token _each_ "each"
 446 %token _of_ "of"
 447 %token _of__ "!of"
 448
 449 @begin E4X
 450 %token _namespace_ "namespace"
 451 %token _xml_ "xml"
 452 @end
 453
 454 %token AutoComplete
 455 %token YieldStar "yield *"
 456
 457 %token <identifier_> Identifier_
 458 %token <number_> NumericLiteral
 459 %token <string_> StringLiteral
 460 %token <literal_> RegularExpressionLiteral_
 461
 462 %token <string_> NoSubstitutionTemplate
 463 %token <string_> TemplateHead
 464 %token <string_> TemplateMiddle
 465 %token <string_> TemplateTail
 466
 467 %type <target_> AccessExpression
 468 %type <expression_> AdditiveExpression
 469 %type <argument_> ArgumentList_
 470 %type <argument_> ArgumentList
 471 %type <argument_> ArgumentListOpt
 472 %type <argument_> Arguments
 473 %type <target_> ArrayComprehension
 474 %type <literal_> ArrayLiteral
 475 %type <expression_> ArrowFunction
 476 %type <functionParameter_> ArrowParameters
 477 %type <expression_> AssignmentExpression
 478 %type <expression_> AssignmentExpressionOpt
 479 %type <identifier_> BindingIdentifier
 480 %type <identifier_> BindingIdentifierOpt
 481 %type <bindings_> BindingList_
 482 %type <bindings_> BindingList
 483 %type <expression_> BitwiseANDExpression
 484 %type <statement_> Block
 485 %type <statement_> BlockStatement
 486 %type <boolean_> BooleanLiteral
 487 %type <binding_> BindingElement
 488 %type <expression_> BitwiseORExpression
 489 %type <expression_> BitwiseXORExpression
 490 %type <statement_> BreakStatement
 491 %type <statement_> BreakableStatement
 492 %type <expression_> CallExpression_
 493 %type <target_> CallExpression
 494 %type <clause_> CaseBlock
 495 %type <clause_> CaseClause
 496 %type <clause_> CaseClausesOpt
 497 %type <catch_> Catch
 498 %type <identifier_> CatchParameter
 499 %type <statement_> ClassDeclaration
 500 %type <target_> ClassExpression
 501 %type <classTail_> ClassHeritage
 502 %type <classTail_> ClassHeritageOpt
 503 %type <classTail_> ClassTail
 504 %type <target_> Comprehension
 505 %type <comprehension_> ComprehensionFor
 506 %type <comprehension_> ComprehensionIf
 507 %type <comprehension_> ComprehensionTail
 508 %type <propertyName_> ComputedPropertyName
 509 %type <expression_> ConditionalExpression
 510 %type <statement_> ContinueStatement
 511 %type <statement_> ConciseBody
 512 %type <parenthetical_> CoverParenthesizedExpressionAndArrowParameterList
 513 %type <statement_> DebuggerStatement
 514 %type <statement_> Declaration_
 515 %type <statement_> Declaration
 516 %type <clause_> DefaultClause
 517 %type <element_> ElementList
 518 %type <element_> ElementListOpt
 519 %type <statement_> ElseStatementOpt
 520 %type <for_> EmptyStatement
 521 %type <expression_> EqualityExpression
 522 %type <expression_> Expression
 523 %type <expression_> ExpressionOpt
 524 %type <for_> ExpressionStatement_
 525 %type <statement_> ExpressionStatement
 526 %type <finally_> Finally
 527 %type <binding_> ForBinding
 528 %type <forin_> ForDeclaration
 529 %type <forin_> ForInStatementInitializer
 530 %type <for_> ForStatementInitializer
 531 %type <binding_> FormalParameter
 532 %type <functionParameter_> FormalParameterList_
 533 %type <functionParameter_> FormalParameterList
 534 %type <functionParameter_> FormalParameters
 535 %type <statement_> FunctionBody
 536 %type <statement_> FunctionDeclaration
 537 %type <target_> FunctionExpression
 538 %type <statement_> FunctionStatementList
 539 %type <statement_> GeneratorBody
 540 %type <statement_> GeneratorDeclaration
 541 %type <target_> GeneratorExpression
 542 %type <method_> GeneratorMethod
 543 %type <statement_> HoistableDeclaration
 544 %type <identifier_> Identifier
 545 %type <identifier_> IdentifierNoOf
 546 %type <identifier_> IdentifierType
 547 %type <identifier_> IdentifierTypeNoOf
 548 %type <identifier_> IdentifierTypeOpt
 549 %type <word_> IdentifierName
 550 %type <variable_> IdentifierReference
 551 %type <statement_> IfStatement
 552 %type <target_> IndirectExpression
 553 %type <expression_> Initializer
 554 %type <expression_> InitializerOpt
 555 %type <statement_> IterationStatement
 556 %type <identifier_> LabelIdentifier
 557 %type <statement_> LabelledItem
 558 %type <statement_> LabelledStatement
 559 %type <assignment_> LeftHandSideAssignment
 560 %type <target_> LeftHandSideExpression
 561 %type <bool_> LetOrConst
 562 %type <binding_> LexicalBinding
 563 %type <for_> LexicalDeclaration_
 564 %type <statement_> LexicalDeclaration
 565 %type <literal_> Literal
 566 %type <propertyName_> LiteralPropertyName
 567 %type <expression_> LogicalANDExpression
 568 %type <expression_> LogicalORExpression
 569 %type <access_> MemberAccess
 570 %type <target_> MemberExpression
 571 %type <method_> MethodDefinition
 572 %type <module_> ModulePath
 573 %type <expression_> MultiplicativeExpression
 574 %type <target_> NewExpression
 575 %type <null_> NullLiteral
 576 %type <literal_> ObjectLiteral
 577 %type <expression_> PostfixExpression
 578 %type <target_> PrimaryExpression
 579 %type <propertyName_> PropertyName
 580 %type <property_> PropertyDefinition
 581 %type <property_> PropertyDefinitionList_
 582 %type <property_> PropertyDefinitionList
 583 %type <property_> PropertyDefinitionListOpt
 584 %type <functionParameter_> PropertySetParameterList
 585 %type <literal_> RegularExpressionLiteral
 586 %type <bool_> RegularExpressionSlash
 587 %type <expression_> RelationalExpression
 588 %type <statement_> ReturnStatement
 589 %type <rubyProc_> RubyProcExpression
 590 %type <functionParameter_> RubyProcParameterList_
 591 %type <functionParameter_> RubyProcParameterList
 592 %type <functionParameter_> RubyProcParameters
 593 %type <functionParameter_> RubyProcParametersOpt
 594 %type <statement_> Script
 595 %type <statement_> ScriptBody
 596 %type <statement_> ScriptBodyOpt
 597 %type <expression_> ShiftExpression
 598 %type <binding_> SingleNameBinding
 599 %type <statement_> Statement__
 600 %type <statement_> Statement_
 601 %type <statement_> Statement
 602 %type <statement_> StatementList
 603 %type <statement_> StatementListOpt
 604 %type <statement_> StatementListItem
 605 %type <functionParameter_> StrictFormalParameters
 606 %type <target_> SuperCall
 607 %type <target_> SuperProperty
 608 %type <statement_> SwitchStatement
 609 %type <target_> TemplateLiteral
 610 %type <span_> TemplateSpans
 611 %type <statement_> ThrowStatement
 612 %type <statement_> TryStatement
 613 %type <expression_> UnaryExpression_
 614 %type <expression_> UnaryExpression
 615 %type <binding_> VariableDeclaration
 616 %type <bindings_> VariableDeclarationList_
 617 %type <bindings_> VariableDeclarationList
 618 %type <for_> VariableStatement_
 619 %type <statement_> VariableStatement
 620 %type <statement_> WithStatement
 621 %type <word_> Word
 622 @begin ObjectiveC
 623 %type <word_> WordOpt
 624 @end
 625 %type <expression_> YieldExpression
 626
 627 @begin C
 628 %type <specifier_> IntegerType
 629 %type <specifier_> IntegerTypeOpt
 630 %type <typedIdentifier_> PrefixedType
 631 %type <specifier_> PrimitiveType
 632 %type <structField_> StructFieldListOpt
 633 %type <typedIdentifier_> SuffixedType
 634 %type <typedIdentifier_> TypeSignifier
 635 %type <modifier_> TypeQualifierLeft
 636 %type <typedIdentifier_> TypeQualifierRight
 637 %type <typedIdentifier_> TypedIdentifierMaybe
 638 %type <typedIdentifier_> TypedIdentifierNo
 639 %type <typedIdentifier_> TypedIdentifierYes
 640 %type <typedParameter_> TypedParameterList_
 641 %type <typedParameter_> TypedParameterList
 642 %type <typedParameter_> TypedParameterListOpt
 643 @end
 644
 645 @begin ObjectiveC
 646 %type <expression_> AssignmentExpressionClassic
 647 %type <expression_> BoxableExpression
 648 %type <statement_> CategoryStatement
 649 %type <expression_> ClassSuperOpt
 650 %type <expression_> ConditionalExpressionClassic
 651 %type <message_> ClassMessageDeclaration
 652 %type <message_> ClassMessageDeclarationListOpt
 653 %type <protocol_> ClassProtocolListOpt
 654 %type <protocol_> ClassProtocols
 655 %type <protocol_> ClassProtocolsOpt
 656 %type <implementationField_> ImplementationFieldListOpt
 657 %type <statement_> ImplementationStatement
 658 %type <target_> MessageExpression
 659 %type <messageParameter_> MessageParameter
 660 %type <messageParameter_> MessageParameters
 661 %type <messageParameter_> MessageParameterList
 662 %type <messageParameter_> MessageParameterListOpt
 663 %type <bool_> MessageScope
 664 %type <argument_> SelectorCall_
 665 %type <argument_> SelectorCall
 666 %type <selector_> SelectorExpression_
 667 %type <selector_> SelectorExpression
 668 %type <selector_> SelectorExpressionOpt
 669 %type <argument_> SelectorList
 670 %type <word_> SelectorWordOpt
 671 %type <typedIdentifier_> TypeOpt
 672 %type <argument_> VariadicCall
 673 @end
 674
 675 @begin E4X
 676 %type <propertyIdentifier_> PropertyIdentifier_
 677 %type <selector_> PropertySelector_
 678 %type <selector_> PropertySelector
 679 %type <identifier_> QualifiedIdentifier_
 680 %type <identifier_> QualifiedIdentifier
 681 %type <identifier_> WildcardIdentifier
 682 %type <identifier_> XMLComment
 683 %type <identifier_> XMLCDATA
 684 %type <identifier_> XMLElement
 685 %type <identifier_> XMLElementContent
 686 %type <identifier_> XMLMarkup
 687 %type <identifier_> XMLPI
 688
 689 %type <attribute_> AttributeIdentifier
 690 /* XXX: %type <statement_> DefaultXMLNamespaceStatement */
 691 %type <expression_> PropertyIdentifier
 692 %type <expression_> XMLListInitilizer
 693 %type <expression_> XMLInitilizer
 694 @end
 695 /* }}} */
 696 /* Token Priorities {{{ */
 697 %nonassoc "if"
 698 %nonassoc "else"
 699 /* }}} */
 700
 701 %start Program
 702 %token MarkModule
 703 %token MarkScript
 704
 705 %%
 706
 707 Program
 708     : MarkScript Script
 709     | MarkModule Module
 710     ;
 711
 712 /* Lexer State {{{ */
 713 LexPushInOn: { driver.in_.push(true); };
 714 LexPushInOff: { driver.in_.push(false); };
 715 LexPopIn: { driver.in_.pop(); };
 716
 717 LexPushReturnOn: { driver.return_.push(true); };
 718 LexPopReturn: { driver.return_.pop(); };
 719
 720 LexPushSuperOn: { driver.super_.push(true); };
 721 LexPushSuperOff: { driver.super_.push(false); };
 722 LexPopSuper: { driver.super_.pop(); };
 723
 724 LexPushYieldOn: { driver.yield_.push(true); };
 725 LexPushYieldOff: { driver.yield_.push(false); };
 726 LexPopYield: { driver.yield_.pop(); };
 727
 728 LexNewLineOrOpt
 729     : { CYLEX(); if (driver.hold_ != empty_symbol) CYERR(@$, "unexpected hold"); if (driver.newline_) { driver.hold_ = yyla.type; yyla.type = yytranslate_(cy::parser::token::NewLine); } }
 730     ;
 731
 732 LexNewLineOrNot
 733     : { CYLEX(); if (driver.hold_ != empty_symbol) CYERR(@$, "unexpected hold"); driver.hold_ = yyla.type; yyla.type = yytranslate_(driver.newline_ ? cy::parser::token::NewLine : cy::parser::token::__); }
 734     ;
 735
 736 LexNoStar
 737     : { CYMAP(YieldStar, Star); }
 738     ;
 739
 740 LexNoBrace
 741     : { CYMAP(OpenBrace_, OpenBrace); }
 742     ;
 743
 744 LexNoClass
 745     : { CYMAP(_class__, _class_); }
 746     ;
 747
 748 LexNoFunction
 749     : { CYMAP(_function__, _function_); }
 750     ;
 751
 752 LexSetStatement
 753     : LexNoBrace LexNoClass LexNoFunction
 754     ;
 755 /* }}} */
 756 /* Virtual Tokens {{{ */
 757 Var_
 758     : "var"
 759     ;
 760 /* }}} */
 761
 762 /* 11.6 Names and Keywords {{{ */
 763 IdentifierName
 764     : Word[pass] { $$ = $pass; }
 765     | "for" { $$ = CYNew CYWord("for"); }
 766     | "in" { $$ = CYNew CYWord("in"); }
 767     | "instanceof" { $$ = CYNew CYWord("instanceof"); }
 768     ;
 769
 770 Word
 771     : IdentifierNoOf[pass] { $$ = $pass; }
 772     | "break" { $$ = CYNew CYWord("break"); }
 773     | "case" { $$ = CYNew CYWord("case"); }
 774     | "catch" { $$ = CYNew CYWord("catch"); }
 775     | "class" LexOf { $$ = CYNew CYWord("class"); }
 776     | ";class" { $$ = CYNew CYWord("class"); }
 777     | "const" { $$ = CYNew CYWord("const"); }
 778     | "continue" { $$ = CYNew CYWord("continue"); }
 779     | "debugger" { $$ = CYNew CYWord("debugger"); }
 780     | "default" { $$ = CYNew CYWord("default"); }
 781     | "delete" { $$ = CYNew CYWord("delete"); }
 782     | "do" { $$ = CYNew CYWord("do"); }
 783     | "else" { $$ = CYNew CYWord("else"); }
 784     | "enum" { $$ = CYNew CYWord("enum"); }
 785     | "export" { $$ = CYNew CYWord("export"); }
 786     | "extends" { $$ = CYNew CYWord("extends"); }
 787     | "false" { $$ = CYNew CYWord("false"); }
 788     | "finally" { $$ = CYNew CYWord("finally"); }
 789     | "function" LexOf { $$ = CYNew CYWord("function"); }
 790     | "if" { $$ = CYNew CYWord("if"); }
 791     | "import" { $$ = CYNew CYWord("import"); }
 792     | "!in" { $$ = CYNew CYWord("in"); }
 793     | "!of" { $$ = CYNew CYWord("of"); }
 794     | "new" { $$ = CYNew CYWord("new"); }
 795     | "null" { $$ = CYNew CYWord("null"); }
 796     | "return" { $$ = CYNew CYWord("return"); }
 797     | "super" { $$ = CYNew CYWord("super"); }
 798     | "switch" { $$ = CYNew CYWord("switch"); }
 799     | "this" { $$ = CYNew CYWord("this"); }
 800     | "throw" { $$ = CYNew CYWord("throw"); }
 801     | "true" { $$ = CYNew CYWord("true"); }
 802     | "try" { $$ = CYNew CYWord("try"); }
 803     | "typeof" { $$ = CYNew CYWord("typeof"); }
 804     | "var" { $$ = CYNew CYWord("var"); }
 805     | "void" { $$ = CYNew CYWord("void"); }
 806     | "while" { $$ = CYNew CYWord("while"); }
 807     | "with" { $$ = CYNew CYWord("with"); }
 808     | "yield" { $$ = CYNew CYIdentifier("yield"); }
 809     ;
 810
 811 @begin ObjectiveC
 812 WordOpt
 813     : Word[pass] { $$ = $pass; }
 814     | { $$ = NULL; }
 815     ;
 816 @end
 817 /* }}} */
 818 /* 11.8.1 Null Literals {{{ */
 819 NullLiteral
 820     : "null" { $$ = CYNew CYNull(); }
 821     ;
 822 /* }}} */
 823 /* 11.8.2 Boolean Literals {{{ */
 824 BooleanLiteral
 825     : "true" { $$ = CYNew CYTrue(); }
 826     | "false" { $$ = CYNew CYFalse(); }
 827     ;
 828 /* }}} */
 829 /* 11.8.5 Regular Expression Literals {{{ */
 830 RegularExpressionSlash
 831     : "/" { $$ = false; }
 832     | "/=" { $$ = true; }
 833     ;
 834
 835 RegularExpressionLiteral
 836     : RegularExpressionSlash[equals] { CYMPT(@$); driver.SetRegEx($equals); } RegularExpressionLiteral_[pass] { $$ = $pass; }
 837     ;
 838 /* }}} */
 839
 840 /* 11.9 Automatic Semicolon Insertion {{{ */
 841 StrictSemi
 842     : { driver.Warning(@$, "warning, automatic semi-colon insertion required"); }
 843     ;
 844
 845 NewLineNot
 846     : LexNewLineOrNot ""
 847     ;
 848
 849 NewLineOpt
 850     : LexNewLineOrNot "\n"
 851     | NewLineNot
 852     ;
 853
 854 TerminatorSoft
 855     : LexNewLineOrNot "\n" StrictSemi
 856     | NewLineNot LexOf Terminator
 857     ;
 858
 859 Terminator
 860     : ";"
 861     | error { if (yyla.type_get() != yyeof_ && yyla.type != yytranslate_(token::CloseBrace) && !driver.newline_) CYERR(@error, "required semi-colon"); else CYEOK(); } StrictSemi
 862     ;
 863
 864 TerminatorOpt
 865     : ";"
 866     | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
 867     ;
 868 /* }}} */
 869
 870 /* 12.1 Identifiers {{{ */
 871 IdentifierReference
 872     : Identifier[pass] { $$ = CYNew CYVariable($pass); }
 873     | "yield" { $$ = CYNew CYVariable(CYNew CYIdentifier("yield")); }
 874     ;
 875
 876 BindingIdentifier
 877     : LexOf IdentifierNoOf[pass] { $$ = $pass; }
 878     | LexOf "!of" { $$ = CYNew CYIdentifier("of"); }
 879     | LexOf "yield" { $$ = CYNew CYIdentifier("yield"); }
 880     ;
 881
 882 BindingIdentifierOpt
 883     : BindingIdentifier[pass] { $$ = $pass; }
 884     | LexOf { $$ = NULL; }
 885     ;
 886
 887 LabelIdentifier
 888     : Identifier[pass] { $$ = $pass; }
 889     | "yield" { $$ = CYNew CYIdentifier("yield"); }
 890     ;
 891
 892 IdentifierTypeNoOf
 893     : Identifier_[pass] { $$ = $pass; }
 894     | "abstract" { $$ = CYNew CYIdentifier("abstract"); }
 895     | "await" { $$ = CYNew CYIdentifier("await"); }
 896     | "boolean" { $$ = CYNew CYIdentifier("boolean"); }
 897     | "byte" { $$ = CYNew CYIdentifier("byte"); }
 898     | "constructor" { $$ = CYNew CYIdentifier("constructor"); }
 899     | "double" { $$ = CYNew CYIdentifier("double"); }
 900     | "each" { $$ = CYNew CYIdentifier("each"); }
 901     | "eval" { $$ = CYNew CYIdentifier("eval"); }
 902     | "final" { $$ = CYNew CYIdentifier("final"); }
 903     | "float" { $$ = CYNew CYIdentifier("float"); }
 904     | "from" { $$ = CYNew CYIdentifier("from"); }
 905     | "get" { $$ = CYNew CYIdentifier("get"); }
 906     | "goto" { $$ = CYNew CYIdentifier("goto"); }
 907     | "implements" { $$ = CYNew CYIdentifier("implements"); }
 908     | "Infinity" { $$ = CYNew CYIdentifier("Infinity"); }
 909     | "interface" { $$ = CYNew CYIdentifier("interface"); }
 910     | "let" { $$ = CYNew CYIdentifier("let"); }
 911     | "!let" LexBind LexOf { $$ = CYNew CYIdentifier("let"); }
 912     | "native" { $$ = CYNew CYIdentifier("native"); }
 913     | "package" { $$ = CYNew CYIdentifier("package"); }
 914     | "private" { $$ = CYNew CYIdentifier("private"); }
 915     | "protected" { $$ = CYNew CYIdentifier("protected"); }
 916     | "prototype" { $$ = CYNew CYIdentifier("prototype"); }
 917     | "public" { $$ = CYNew CYIdentifier("public"); }
 918     | "set" { $$ = CYNew CYIdentifier("set"); }
 919     | "synchronized" { $$ = CYNew CYIdentifier("synchronized"); }
 920     | "target" { $$ = CYNew CYIdentifier("target"); }
 921     | "throws" { $$ = CYNew CYIdentifier("throws"); }
 922     | "transient" { $$ = CYNew CYIdentifier("transient"); }
 923     | "undefined" { $$ = CYNew CYIdentifier("undefined"); }
 924 @begin ObjectiveC
 925     | "bool" { $$ = CYNew CYIdentifier("bool"); }
 926     | "BOOL" { $$ = CYNew CYIdentifier("BOOL"); }
 927     | "id" { $$ = CYNew CYIdentifier("id"); }
 928     | "SEL" { $$ = CYNew CYIdentifier("SEL"); }
 929 @end
 930     ;
 931
 932 IdentifierType
 933     : IdentifierTypeNoOf[pass] { $$ = $pass; }
 934     | "of" { $$ = CYNew CYIdentifier("of"); }
 935     ;
 936
 937 IdentifierTypeOpt
 938     : IdentifierType[pass] { $$ = $pass; }
 939     | { $$ = NULL; }
 940     ;
 941
 942 IdentifierNoOf
 943     : IdentifierTypeNoOf
 944     | "char" { $$ = CYNew CYIdentifier("char"); }
 945     | "int" { $$ = CYNew CYIdentifier("int"); }
 946     | "long" { $$ = CYNew CYIdentifier("long"); }
 947     | "short" { $$ = CYNew CYIdentifier("short"); }
 948     | "static" { $$ = CYNew CYIdentifier("static"); }
 949     | "volatile" { $$ = CYNew CYIdentifier("volatile"); }
 950 @begin C
 951     | "signed" { $$ = CYNew CYIdentifier("signed"); }
 952     | "struct" { $$ = CYNew CYIdentifier("struct"); }
 953     | "unsigned" { $$ = CYNew CYIdentifier("unsigned"); }
 954 @end
 955 @begin ObjectiveC
 956     | "nil" { $$ = CYNew CYIdentifier("nil"); }
 957     | "NO" { $$ = CYNew CYIdentifier("NO"); }
 958     | "NULL" { $$ = CYNew CYIdentifier("NULL"); }
 959     | "YES" { $$ = CYNew CYIdentifier("YES"); }
 960 @end
 961     ;
 962
 963 Identifier
 964     : IdentifierNoOf[pass] { $$ = $pass; }
 965     | "of" { $$ = CYNew CYIdentifier("of"); }
 966     | "!of" { $$ = CYNew CYIdentifier("of"); }
 967     ;
 968 /* }}} */
 969 /* 12.2 Primary Expression {{{ */
 970 PrimaryExpression
 971     : "this" { $$ = CYNew CYThis(); }
 972     | IdentifierReference[pass] { $$ = $pass; }
 973     | Literal[pass] { $$ = $pass; }
 974     | ArrayLiteral[pass] { $$ = $pass; }
 975     | ObjectLiteral[pass] { $$ = $pass; }
 976     | FunctionExpression[pass] { $$ = $pass; }
 977     | ClassExpression[pass] { $$ = $pass; }
 978     | GeneratorExpression[pass] { $$ = $pass; }
 979     | RegularExpressionLiteral[pass] { $$ = $pass; }
 980     | TemplateLiteral[pass] { $$ = $pass; }
 981     | CoverParenthesizedExpressionAndArrowParameterList[cover] { if ($cover == NULL) CYERR(@cover, "invalid parenthetical"); $$ = $cover; }
 982     | AutoComplete { driver.mode_ = CYDriver::AutoPrimary; YYACCEPT; }
 983     ;
 984
 985 CoverParenthesizedExpressionAndArrowParameterList
 986     : "(" Expression[expression] ")" { $$ = CYNew CYParenthetical($expression); }
 987     | "(" LexOf ")" { $$ = NULL; }
 988     | "(" LexOf "..." BindingIdentifier ")" { CYNOT(@$); }
 989     | "(" Expression "," LexOf "..." BindingIdentifier ")" { CYNOT(@$); }
 990     ;
 991 /* }}} */
 992 /* 12.2.4 Literals {{{ */
 993 Literal
 994     : NullLiteral[pass] { $$ = $pass; }
 995     | BooleanLiteral[pass] { $$ = $pass; }
 996     | NumericLiteral[pass] { $$ = $pass; }
 997     | StringLiteral[pass] { $$ = $pass; }
 998     ;
 999 /* }}} */
1000 /* 12.2.5 Array Initializer {{{ */
1001 ArrayLiteral
1002     : "[" ElementListOpt[elements] "]" { $$ = CYNew CYArray($elements); }
1003     ;
1004
1005 ElementList
1006     : AssignmentExpressionOpt[value] "," ElementListOpt[next] { $$ = CYNew CYElementValue($value, $next); }
1007     | LexOf "..." AssignmentExpression[values] { $$ = CYNew CYElementSpread($values); }
1008     | AssignmentExpression[value] { $$ = CYNew CYElementValue($value, NULL); }
1009     ;
1010
1011 ElementListOpt
1012     : ElementList[pass] { $$ = $pass; }
1013     | LexOf { $$ = NULL; }
1014     ;
1015 /* }}} */
1016 /* 12.2.6 Object Initializer {{{ */
1017 ObjectLiteral
1018     : "{" PropertyDefinitionListOpt[properties] "}" { $$ = CYNew CYObject($properties); }
1019     ;
1020
1021 PropertyDefinitionList_
1022     : "," PropertyDefinitionListOpt[properties] { $$ = $properties; }
1023     | { $$ = NULL; }
1024     ;
1025
1026 PropertyDefinitionList
1027     : PropertyDefinition[property] PropertyDefinitionList_[next] { $property->SetNext($next); $$ = $property; }
1028     ;
1029
1030 PropertyDefinitionListOpt
1031     : PropertyDefinitionList[properties] { $$ = $properties; }
1032     | { $$ = NULL; }
1033     ;
1034
1035 PropertyDefinition
1036     : IdentifierReference[value] { $$ = CYNew CYPropertyValue($value->name_, $value); }
1037     | CoverInitializedName[name] { CYNOT(@$); }
1038     | PropertyName[name] ":" AssignmentExpression[value] { $$ = CYNew CYPropertyValue($name, $value); }
1039     | MethodDefinition[pass] { $$ = $pass; }
1040     ;
1041
1042 PropertyName
1043     : LiteralPropertyName[pass] { $$ = $pass; }
1044     | ComputedPropertyName[pass] { $$ = $pass; }
1045     ;
1046
1047 LiteralPropertyName
1048     : IdentifierName[pass] { $$ = $pass; }
1049     | StringLiteral[pass] { $$ = $pass; }
1050     | NumericLiteral[pass] { $$ = $pass; }
1051     ;
1052
1053 ComputedPropertyName
1054     : "[" AssignmentExpression[expression] "]" { $$ = CYNew CYComputed($expression); }
1055     ;
1056
1057 CoverInitializedName
1058     : IdentifierReference Initializer
1059     ;
1060
1061 Initializer
1062     : "=" AssignmentExpression[initializer] { $$ = $initializer; }
1063     ;
1064
1065 InitializerOpt
1066     : Initializer[pass] { $$ = $pass; }
1067     | { $$ = NULL; }
1068     ;
1069 /* }}} */
1070 /* 12.2.9 Template Literals {{{ */
1071 TemplateLiteral
1072     : NoSubstitutionTemplate[string] { $$ = CYNew CYTemplate($string, NULL); }
1073     | TemplateHead[string] LexPushInOff TemplateSpans[spans] { $$ = CYNew CYTemplate($string, $spans); }
1074     ;
1075
1076 TemplateSpans
1077     : Expression[value] TemplateMiddle[string] TemplateSpans[spans] { $$ = CYNew CYSpan($value, $string, $spans); }
1078     | Expression[value] TemplateTail[string] LexPopIn { $$ = CYNew CYSpan($value, $string, NULL); }
1079     ;
1080 /* }}} */
1081
1082 /* 12.3 Left-Hand-Side Expressions {{{ */
1083 MemberAccess
1084     : "[" Expression[property] "]" { $$ = CYNew CYDirectMember(NULL, $property); }
1085     | "." IdentifierName[property] { $$ = CYNew CYDirectMember(NULL, CYNew CYString($property)); }
1086     | "." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
1087     | TemplateLiteral { CYNOT(@$); }
1088     ;
1089
1090 MemberExpression
1091     : PrimaryExpression[pass] { $$ = $pass; }
1092     | MemberExpression[object] { driver.context_ = $object; } MemberAccess[member] { $member->SetLeft($object); $$ = $member; }
1093     | SuperProperty[pass] { $$ = $pass; }
1094     | MetaProperty { CYNOT(@$); }
1095     | "new" MemberExpression[constructor] Arguments[arguments] { $$ = CYNew cy::Syntax::New($constructor, $arguments); }
1096     ;
1097
1098 SuperProperty
1099     : "super"[super] { if (!driver.super_.top()) CYERR(@super, "invalid super"); } "[" Expression[property] "]" { $$ = CYNew CYSuperAccess($property); }
1100     | "super"[super] { if (!driver.super_.top()) CYERR(@super, "invalid super"); } "." IdentifierName[property] { $$ = CYNew CYSuperAccess(CYNew CYString($property)); }
1101     ;
1102
1103 MetaProperty
1104     : NewTarget
1105     ;
1106
1107 NewTarget
1108     : "new" "." "target"
1109     ;
1110
1111 NewExpression
1112     : MemberExpression[pass] { $$ = $pass; }
1113     | "new" NewExpression[expression] { $$ = CYNew cy::Syntax::New($expression, NULL); }
1114     ;
1115
1116 CallExpression_
1117     : MemberExpression[pass] { $$ = $pass; }
1118     | CallExpression[pass] { $$ = $pass; }
1119     ;
1120
1121 CallExpression
1122     : CallExpression_[function] Arguments[arguments] { if (!$function->Eval()) $$ = CYNew CYCall($function, $arguments); else $$ = CYNew CYEval($arguments); }
1123     | SuperCall[pass] { $$ = $pass; }
1124     | CallExpression[object] { driver.context_ = $object; } MemberAccess[member] { $member->SetLeft($object); $$ = $member; }
1125     ;
1126
1127 SuperCall
1128     : "super"[super] { if (!driver.super_.top()) CYERR(@super, "invalid super"); } Arguments[arguments] { $$ = CYNew CYSuperCall($arguments); }
1129     ;
1130
1131 Arguments
1132     : "(" ArgumentListOpt[arguments] ")" { $$ = $arguments; }
1133     ;
1134
1135 ArgumentList_
1136     : "," ArgumentList[arguments] { $$ = $arguments; }
1137     | { $$ = NULL; }
1138     ;
1139
1140 ArgumentList
1141     : AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument(NULL, $value, $next); }
1142     | LexOf "..." AssignmentExpression { CYNOT(@$); }
1143     ;
1144
1145 ArgumentListOpt
1146     : ArgumentList[pass] { $$ = $pass; }
1147     | LexOf { $$ = NULL; }
1148     ;
1149
1150 AccessExpression
1151     : NewExpression[pass] { $$ = $pass; }
1152     | CallExpression[pass] { $$ = $pass; }
1153     ;
1154
1155 LeftHandSideExpression
1156     : AccessExpression[pass] LexNewLineOrOpt { $$ = $pass; }
1157     | IndirectExpression[pass] { $$ = $pass; }
1158     ;
1159 /* }}} */
1160 /* 12.4 Postfix Expressions {{{ */
1161 PostfixExpression
1162     : AccessExpression[lhs] LexNewLineOrOpt { $$ = $lhs; }
1163     | AccessExpression[lhs] LexNewLineOrOpt "++" { $$ = CYNew CYPostIncrement($lhs); }
1164     | AccessExpression[lhs] LexNewLineOrOpt "--" { $$ = CYNew CYPostDecrement($lhs); }
1165     ;
1166 /* }}} */
1167 /* 12.5 Unary Operators {{{ */
1168 UnaryExpression_
1169     : "delete" UnaryExpression[rhs] { $$ = CYNew CYDelete($rhs); }
1170     | "void" UnaryExpression[rhs] { $$ = CYNew CYVoid($rhs); }
1171     | "typeof" UnaryExpression[rhs] { $$ = CYNew CYTypeOf($rhs); }
1172     | "++" UnaryExpression[rhs] { $$ = CYNew CYPreIncrement($rhs); }
1173     | "--" UnaryExpression[rhs] { $$ = CYNew CYPreDecrement($rhs); }
1174     | "+" UnaryExpression[rhs] { $$ = CYNew CYAffirm($rhs); }
1175     | "-" UnaryExpression[rhs] { $$ = CYNew CYNegate($rhs); }
1176     | "~" UnaryExpression[rhs] { $$ = CYNew CYBitwiseNot($rhs); }
1177     | "!" UnaryExpression[rhs] { $$ = CYNew CYLogicalNot($rhs); }
1178     ;
1179
1180 UnaryExpression
1181     : PostfixExpression[expression] { $$ = $expression; }
1182     | PostfixExpression[expression] "\n" { $$ = $expression; }
1183     | UnaryExpression_[pass] { $$ = $pass; }
1184     ;
1185 /* }}} */
1186 /* 12.6 Multiplicative Operators {{{ */
1187 MultiplicativeExpression
1188     : UnaryExpression[pass] { $$ = $pass; }
1189     | MultiplicativeExpression[lhs] "*" UnaryExpression[rhs] { $$ = CYNew CYMultiply($lhs, $rhs); }
1190     | MultiplicativeExpression[lhs] "/" UnaryExpression[rhs] { $$ = CYNew CYDivide($lhs, $rhs); }
1191     | MultiplicativeExpression[lhs] "%" UnaryExpression[rhs] { $$ = CYNew CYModulus($lhs, $rhs); }
1192     ;
1193 /* }}} */
1194 /* 12.7 Additive Operators {{{ */
1195 AdditiveExpression
1196     : MultiplicativeExpression[pass] { $$ = $pass; }
1197     | AdditiveExpression[lhs] "+" MultiplicativeExpression[rhs] { $$ = CYNew CYAdd($lhs, $rhs); }
1198     | AdditiveExpression[lhs] "-" MultiplicativeExpression[rhs] { $$ = CYNew CYSubtract($lhs, $rhs); }
1199     ;
1200 /* }}} */
1201 /* 12.8 Bitwise Shift Operators {{{ */
1202 ShiftExpression
1203     : AdditiveExpression[pass] { $$ = $pass; }
1204     | ShiftExpression[lhs] "<<" AdditiveExpression[rhs] { $$ = CYNew CYShiftLeft($lhs, $rhs); }
1205     | ShiftExpression[lhs] ">>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightSigned($lhs, $rhs); }
1206     | ShiftExpression[lhs] ">>>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightUnsigned($lhs, $rhs); }
1207     ;
1208 /* }}} */
1209 /* 12.9 Relational Operators {{{ */
1210 RelationalExpression
1211     : ShiftExpression[pass] { $$ = $pass; }
1212     | RelationalExpression[lhs] "<" ShiftExpression[rhs] { $$ = CYNew CYLess($lhs, $rhs); }
1213     | RelationalExpression[lhs] ">" ShiftExpression[rhs] { $$ = CYNew CYGreater($lhs, $rhs); }
1214     | RelationalExpression[lhs] "<=" ShiftExpression[rhs] { $$ = CYNew CYLessOrEqual($lhs, $rhs); }
1215     | RelationalExpression[lhs] ">=" ShiftExpression[rhs] { $$ = CYNew CYGreaterOrEqual($lhs, $rhs); }
1216     | RelationalExpression[lhs] "instanceof" ShiftExpression[rhs] { $$ = CYNew CYInstanceOf($lhs, $rhs); }
1217     | RelationalExpression[lhs] "in" ShiftExpression[rhs] { $$ = CYNew CYIn($lhs, $rhs); }
1218     ;
1219 /* }}} */
1220 /* 12.10 Equality Operators {{{ */
1221 EqualityExpression
1222     : RelationalExpression[pass] { $$ = $pass; }
1223     | EqualityExpression[lhs] "==" RelationalExpression[rhs] { $$ = CYNew CYEqual($lhs, $rhs); }
1224     | EqualityExpression[lhs] "!=" RelationalExpression[rhs] { $$ = CYNew CYNotEqual($lhs, $rhs); }
1225     | EqualityExpression[lhs] "===" RelationalExpression[rhs] { $$ = CYNew CYIdentical($lhs, $rhs); }
1226     | EqualityExpression[lhs] "!==" RelationalExpression[rhs] { $$ = CYNew CYNotIdentical($lhs, $rhs); }
1227     ;
1228 /* }}} */
1229 /* 12.11 Binary Bitwise Operators {{{ */
1230 BitwiseANDExpression
1231     : EqualityExpression[pass] { $$ = $pass; }
1232     | BitwiseANDExpression[lhs] "&" EqualityExpression[rhs] { $$ = CYNew CYBitwiseAnd($lhs, $rhs); }
1233     ;
1234
1235 BitwiseXORExpression
1236     : BitwiseANDExpression[pass] { $$ = $pass; }
1237     | BitwiseXORExpression[lhs] "^" BitwiseANDExpression[rhs] { $$ = CYNew CYBitwiseXOr($lhs, $rhs); }
1238     ;
1239
1240 BitwiseORExpression
1241     : BitwiseXORExpression[pass] { $$ = $pass; }
1242     | BitwiseORExpression[lhs] "|" BitwiseXORExpression[rhs] { $$ = CYNew CYBitwiseOr($lhs, $rhs); }
1243     ;
1244 /* }}} */
1245 /* 12.12 Binary Logical Operators {{{ */
1246 LogicalANDExpression
1247     : BitwiseORExpression[pass] { $$ = $pass; }
1248     | LogicalANDExpression[lhs] "&&" BitwiseORExpression[rhs] { $$ = CYNew CYLogicalAnd($lhs, $rhs); }
1249     ;
1250
1251 LogicalORExpression
1252     : LogicalANDExpression[pass] { $$ = $pass; }
1253     | LogicalORExpression[lhs] "||" LogicalANDExpression[rhs] { $$ = CYNew CYLogicalOr($lhs, $rhs); }
1254     ;
1255 /* }}} */
1256 /* 12.13 Conditional Operator ( ? : ) {{{ */
1257 @begin ObjectiveC
1258 ConditionalExpressionClassic
1259     : LogicalORExpression[pass] { $$ = $pass; }
1260     | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpressionClassic[false] { $$ = CYNew CYCondition($test, $true, $false); }
1261     ;
1262 @end
1263
1264 ConditionalExpression
1265     : LogicalORExpression[pass] { $$ = $pass; }
1266     | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpression[false] { $$ = CYNew CYCondition($test, $true, $false); }
1267     ;
1268 /* }}} */
1269 /* 12.14 Assignment Operators {{{ */
1270 LeftHandSideAssignment
1271     : LeftHandSideExpression[lhs] "=" { $$ = CYNew CYAssign($lhs, NULL); }
1272     | LeftHandSideExpression[lhs] "*=" { $$ = CYNew CYMultiplyAssign($lhs, NULL); }
1273     | LeftHandSideExpression[lhs] "/=" { $$ = CYNew CYDivideAssign($lhs, NULL); }
1274     | LeftHandSideExpression[lhs] "%=" { $$ = CYNew CYModulusAssign($lhs, NULL); }
1275     | LeftHandSideExpression[lhs] "+=" { $$ = CYNew CYAddAssign($lhs, NULL); }
1276     | LeftHandSideExpression[lhs] "-=" { $$ = CYNew CYSubtractAssign($lhs, NULL); }
1277     | LeftHandSideExpression[lhs] "<<=" { $$ = CYNew CYShiftLeftAssign($lhs, NULL); }
1278     | LeftHandSideExpression[lhs] ">>=" { $$ = CYNew CYShiftRightSignedAssign($lhs, NULL); }
1279     | LeftHandSideExpression[lhs] ">>>=" { $$ = CYNew CYShiftRightUnsignedAssign($lhs, NULL); }
1280     | LeftHandSideExpression[lhs] "&=" { $$ = CYNew CYBitwiseAndAssign($lhs, NULL); }
1281     | LeftHandSideExpression[lhs] "^=" { $$ = CYNew CYBitwiseXOrAssign($lhs, NULL); }
1282     | LeftHandSideExpression[lhs] "|=" { $$ = CYNew CYBitwiseOrAssign($lhs, NULL); }
1283     ;
1284
1285 @begin ObjectiveC
1286 AssignmentExpressionClassic
1287     : LexOf ConditionalExpressionClassic[pass] { $$ = $pass; }
1288     | LexOf LeftHandSideAssignment[assignment] AssignmentExpressionClassic[rhs] { $assignment->SetRight($rhs); $$ = $assignment; }
1289     ;
1290 @end
1291
1292 AssignmentExpression
1293     : LexOf ConditionalExpression[pass] { $$ = $pass; }
1294     | LexOf YieldExpression[pass] { $$ = $pass; }
1295     | ArrowFunction[pass] { $$ = $pass; }
1296     | LexOf LeftHandSideAssignment[assignment] AssignmentExpression[rhs] { $assignment->SetRight($rhs); $$ = $assignment; }
1297     ;
1298
1299 AssignmentExpressionOpt
1300     : AssignmentExpression[pass] { $$ = $pass; }
1301     | LexOf { $$ = NULL; }
1302     ;
1303 /* }}} */
1304 /* 12.15 Comma Operator ( , ) {{{ */
1305 Expression
1306     : AssignmentExpression[pass] { $$ = $pass; }
1307     | Expression[expression] "," AssignmentExpression[next] { $$ = CYNew CYCompound($expression, $next); }
1308     ;
1309
1310 ExpressionOpt
1311     : Expression[pass] { $$ = $pass; }
1312     | LexOf { $$ = NULL; }
1313     ;
1314 /* }}} */
1315
1316 /* 13 Statements and Declarations {{{ */
1317 Statement__
1318     : BlockStatement[pass] { $$ = $pass; }
1319     | VariableStatement[pass] { $$ = $pass; }
1320     | EmptyStatement[pass] { $$ = $pass; }
1321     | IfStatement[pass] { $$ = $pass; }
1322     | BreakableStatement[pass] { $$ = $pass; }
1323     | ContinueStatement[pass] { $$ = $pass; }
1324     | BreakStatement[pass] { $$ = $pass; }
1325     | ReturnStatement[pass] { $$ = $pass; }
1326     | WithStatement[pass] { $$ = $pass; }
1327     | LabelledStatement[pass] { $$ = $pass; }
1328     | ThrowStatement[pass] { $$ = $pass; }
1329     | TryStatement[pass] { $$ = $pass; }
1330     | DebuggerStatement[pass] { $$ = $pass; }
1331     ;
1332
1333 Statement_
1334     : LexOf Statement__[pass] { $$ = $pass; }
1335     | ExpressionStatement[pass] { $$ = $pass; }
1336     ;
1337
1338 Statement
1339     : LexSetStatement LexLet Statement_[pass] { $$ = $pass; }
1340     ;
1341
1342 Declaration_
1343     : HoistableDeclaration[pass] { $$ = $pass; }
1344     | ClassDeclaration[pass] { $$ = $pass; }
1345     ;
1346
1347 Declaration
1348     : LexSetStatement LexLet LexOf Declaration_[pass] { $$ = $pass; }
1349     | LexSetStatement LexicalDeclaration[pass] { $$ = $pass; }
1350     ;
1351
1352 HoistableDeclaration
1353     : FunctionDeclaration[pass] { $$ = $pass; }
1354     | GeneratorDeclaration[pass] { $$ = $pass; }
1355     ;
1356
1357 BreakableStatement
1358     : IterationStatement[pass] { $$ = $pass; }
1359     | SwitchStatement[pass] { $$ = $pass; }
1360     ;
1361 /* }}} */
1362 /* 13.2 Block {{{ */
1363 BlockStatement
1364     : ";{" StatementListOpt[code] "}" { $$ = CYNew CYBlock($code); }
1365     ;
1366
1367 Block
1368     : "{" StatementListOpt[code] "}" { $$ = $code; }
1369     ;
1370
1371 StatementList
1372     : StatementListItem[statement] StatementListOpt[next] { $statement->SetNext($next); $$ = $statement; }
1373     ;
1374
1375 StatementListOpt
1376     : StatementList[pass] { $$ = $pass; }
1377     | LexSetStatement LexLet LexOf { $$ = NULL; }
1378     ;
1379
1380 StatementListItem
1381     : Statement[pass] { $$ = $pass; }
1382     | Declaration[pass] { $$ = $pass; }
1383     ;
1384 /* }}} */
1385 /* 13.3 Let and Const Declarations {{{ */
1386 LexicalDeclaration_
1387     : LetOrConst[constant] BindingList[bindings] { $$ = CYNew CYLexical($constant, $bindings); }
1388     ;
1389
1390 LexicalDeclaration
1391     : LexicalDeclaration_[statement] Terminator { $$ = $statement; }
1392     ;
1393
1394 LexLet
1395     : { CYMAP(_let__, _let_); }
1396     ;
1397
1398 LexOf
1399     : { CYMAP(_of__, _of_); }
1400     ;
1401
1402 LexBind
1403     : { CYMAP(OpenBrace_let, OpenBrace); CYMAP(OpenBracket_let, OpenBracket); }
1404     ;
1405
1406 LetOrConst
1407     : LexLet LexOf "!let" LexBind LexOf { $$ = false; }
1408     | LexLet LexOf "const" { $$ = true; }
1409     ;
1410
1411 BindingList_
1412     : "," LexBind BindingList[bindings] { $$ = $bindings; }
1413     | { $$ = NULL; }
1414     ;
1415
1416 BindingList
1417     : LexicalBinding[binding] BindingList_[next] { $$ = CYNew CYBindings($binding, $next); }
1418     ;
1419
1420 LexicalBinding
1421     : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
1422     | LexOf BindingPattern Initializer { CYNOT(@$); }
1423     ;
1424 /* }}} */
1425 /* 13.3.2 Variable Statement {{{ */
1426 VariableStatement_
1427     : Var_ VariableDeclarationList[bindings] { $$ = CYNew CYVar($bindings); }
1428     ;
1429
1430 VariableStatement
1431     : VariableStatement_[statement] Terminator { $$ = $statement; }
1432     ;
1433
1434 VariableDeclarationList_
1435     : "," VariableDeclarationList[bindings] { $$ = $bindings; }
1436     | { $$ = NULL; }
1437     ;
1438
1439 VariableDeclarationList
1440     : LexBind VariableDeclaration[binding] VariableDeclarationList_[next] { $$ = CYNew CYBindings($binding, $next); }
1441     ;
1442
1443 VariableDeclaration
1444     : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
1445     | LexOf BindingPattern Initializer { CYNOT(@$); }
1446     ;
1447 /* }}} */
1448 /* 13.3.3 Destructuring Binding Patterns {{{ */
1449 BindingPattern
1450     : ObjectBindingPattern
1451     | ArrayBindingPattern
1452     ;
1453
1454 ObjectBindingPattern
1455     : "let {" BindingPropertyListOpt "}"
1456     ;
1457
1458 ArrayBindingPattern
1459     : "let [" BindingElementListOpt "]"
1460     ;
1461
1462 BindingPropertyList_
1463     : "," BindingPropertyListOpt
1464     |
1465     ;
1466
1467 BindingPropertyList
1468     : BindingProperty BindingPropertyList_
1469     ;
1470
1471 BindingPropertyListOpt
1472     : BindingPropertyList
1473     | LexOf
1474     ;
1475
1476 BindingElementList
1477     : BindingElementOpt[element] "," BindingElementListOpt[next]
1478     | BindingRestElement[element]
1479     | BindingElement[element]
1480     ;
1481
1482 BindingElementListOpt
1483     : BindingElementList[pass]
1484     | LexBind LexOf
1485     ;
1486
1487 BindingProperty
1488     : SingleNameBinding
1489     | LexOf PropertyName ":" BindingElement
1490     ;
1491
1492 BindingElement
1493     : LexBind SingleNameBinding[pass] { $$ = $pass; }
1494     | LexBind LexOf BindingPattern InitializerOpt[initializer] { CYNOT(@$); }
1495     ;
1496
1497 BindingElementOpt
1498     : BindingElement[pass]
1499     | LexBind LexOf
1500     ;
1501
1502 SingleNameBinding
1503     : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
1504     ;
1505
1506 BindingRestElement
1507     : LexBind LexOf "..." BindingIdentifier
1508     ;
1509 /* }}} */
1510 /* 13.4 Empty Statement {{{ */
1511 EmptyStatement
1512     : ";" { $$ = CYNew CYEmpty(); }
1513     ;
1514 /* }}} */
1515 /* 13.5 Expression Statement {{{ */
1516 ExpressionStatement_
1517     : Expression[expression] { $$ = CYNew CYExpress($[expression]); }
1518
1519 ExpressionStatement
1520     : ExpressionStatement_[statement] Terminator { $$ = $statement; }
1521     ;
1522 /* }}} */
1523 /* 13.6 The if Statement {{{ */
1524 ElseStatementOpt
1525     : "else" Statement[false] { $$ = $false; }
1526     | %prec "if" { $$ = NULL; }
1527     ;
1528
1529 IfStatement
1530     : "if" "(" Expression[test] ")" Statement[true] ElseStatementOpt[false] { $$ = CYNew CYIf($test, $true, $false); }
1531     ;
1532 /* }}} */
1533 /* 13.7 Iteration Statements {{{ */
1534 IterationStatement
1535     : "do" Statement[code] "while" "(" Expression[test] ")" TerminatorOpt { $$ = CYNew CYDoWhile($test, $code); }
1536     | "while" "(" Expression[test] ")" Statement[code] { $$ = CYNew CYWhile($test, $code); }
1537     | "for" "(" LexPushInOn ForStatementInitializer[initializer] LexPopIn ExpressionOpt[test] ";" ExpressionOpt[increment] ")" Statement[code] { $$ = CYNew CYFor($initializer, $test, $increment, $code); }
1538     | "for" "(" LexPushInOn LexLet LexOf Var_ LexBind BindingIdentifier[identifier] Initializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForInitialized(CYNew CYBinding($identifier, $initializer), $iterable, $code); }
1539     | "for" "(" LexPushInOn ForInStatementInitializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForIn($initializer, $iterable, $code); }
1540     | "for" "(" LexPushInOn ForInStatementInitializer[initializer] "of" LexPopIn AssignmentExpression[iterable] ")" Statement[code] { $$ = CYNew CYForOf($initializer, $iterable, $code); }
1541     ;
1542
1543 ForStatementInitializer
1544     : LexLet LexOf EmptyStatement[pass] { $$ = $pass; }
1545     | LexLet ExpressionStatement_[initializer] ";" { $$ = $initializer; }
1546     | LexLet LexOf VariableStatement_[initializer] ";" { $$ = $initializer; }
1547     | LexicalDeclaration_[initializer] ";" { $$ = $initializer; }
1548     ;
1549
1550 ForInStatementInitializer
1551     : LexLet LexOf AccessExpression[pass] LexNewLineOrOpt { $$ = $pass; }
1552     | LexLet LexOf IndirectExpression[pass] { $$ = $pass; }
1553     | LexLet LexOf Var_ LexBind ForBinding[binding] { $$ = CYNew CYForVariable($binding); }
1554     | ForDeclaration[pass] { $$ = $pass; }
1555     ;
1556
1557 ForDeclaration
1558     : LetOrConst[constant] ForBinding[binding] { $$ = CYNew CYForLexical($constant, $binding); }
1559     ;
1560
1561 ForBinding
1562     : BindingIdentifier[identifier] { $$ = CYNew CYBinding($identifier, NULL); }
1563     | LexOf BindingPattern { CYNOT(@$); }
1564     ;
1565 /* }}} */
1566 /* 13.8 The continue Statement {{{ */
1567 ContinueStatement
1568     : "continue" TerminatorSoft { $$ = CYNew CYContinue(NULL); }
1569     | "continue" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYContinue($label); }
1570     ;
1571 /* }}} */
1572 /* 13.9 The break Statement {{{ */
1573 BreakStatement
1574     : "break" TerminatorSoft { $$ = CYNew CYBreak(NULL); }
1575     | "break" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYBreak($label); }
1576     ;
1577 /* }}} */
1578 /* 13.10 The return Statement {{{ */
1579 Return
1580     : "return"[return] { if (!driver.return_.top()) CYERR(@return, "invalid return"); }
1581     ;
1582
1583 ReturnStatement
1584     : Return TerminatorSoft { $$ = CYNew CYReturn(NULL); }
1585     | Return NewLineNot Expression[value] Terminator { $$ = CYNew CYReturn($value); }
1586     ;
1587 /* }}} */
1588 /* 13.11 The with Statement {{{ */
1589 WithStatement
1590     : "with" "(" Expression[scope] ")" Statement[code] { $$ = CYNew CYWith($scope, $code); }
1591     ;
1592 /* }}} */
1593 /* 13.12 The switch Statement {{{ */
1594 SwitchStatement
1595     : "switch" "(" Expression[value] ")" CaseBlock[clauses] { $$ = CYNew CYSwitch($value, $clauses); }
1596     ;
1597
1598 CaseBlock
1599     : "{" CaseClausesOpt[clauses] "}" { $$ = $clauses; }
1600     ;
1601
1602 CaseClause
1603     : "case" Expression[value] ":" StatementListOpt[code] { $$ = CYNew CYClause($value, $code); }
1604     ;
1605
1606 CaseClausesOpt
1607     : CaseClause[clause] CaseClausesOpt[next] { $clause->SetNext($next); $$ = $clause; }
1608     | DefaultClause[clause] CaseClausesOpt[next] { $clause->SetNext($next); $$ = $clause; }
1609     | { $$ = NULL; }
1610     ;
1611
1612 // XXX: the standard makes certain you can only have one of these
1613 DefaultClause
1614     : "default" ":" StatementListOpt[code] { $$ = CYNew CYClause(NULL, $code); }
1615     ;
1616 /* }}} */
1617 /* 13.13 Labelled Statements {{{ */
1618 LabelledStatement
1619     : LabelIdentifier[name] ":" LabelledItem[statement] { $$ = CYNew CYLabel($name, $statement); }
1620     ;
1621
1622 LabelledItem
1623     : Statement[pass] { $$ = $pass; }
1624     | LexSetStatement LexLet LexOf FunctionDeclaration[pass] { $$ = $pass; }
1625     ;
1626 /* }}} */
1627 /* 13.14 The throw Statement {{{ */
1628 ThrowStatement
1629     : "throw"[throw] TerminatorSoft { CYERR(@throw, "throw without exception"); }
1630     | "throw" NewLineNot Expression[value] Terminator { $$ = CYNew cy::Syntax::Throw($value); }
1631     ;
1632 /* }}} */
1633 /* 13.15 The try Statement {{{ */
1634 TryStatement
1635     : "try" Block[code] Catch[catch] { $$ = CYNew cy::Syntax::Try($code, $catch, NULL); }
1636     | "try" Block[code] Finally[finally] { $$ = CYNew cy::Syntax::Try($code, NULL, $finally); }
1637     | "try" Block[code] Catch[catch] Finally[finally] { $$ = CYNew cy::Syntax::Try($code, $catch, $finally); }
1638     ;
1639
1640 Catch
1641     : "catch" "(" LexBind CatchParameter[name] ")" Block[code] { $$ = CYNew cy::Syntax::Catch($name, $code); }
1642     ;
1643
1644 Finally
1645     : "finally" Block[code] { $$ = CYNew CYFinally($code); }
1646     ;
1647
1648 CatchParameter
1649     : BindingIdentifier[pass] { $$ = $pass; }
1650     | LexOf BindingPattern { CYNOT(@$); }
1651     ;
1652 /* }}} */
1653 /* 13.16 The debugger Statement {{{ */
1654 DebuggerStatement
1655     : "debugger" Terminator { $$ = CYNew CYDebugger(); }
1656     ;
1657 /* }}} */
1658
1659 /* 14.1 Function Definitions {{{ */
1660 FunctionDeclaration
1661     : ";function" BindingIdentifier[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionStatement($name, $parameters, $code); }
1662     ;
1663
1664 FunctionExpression
1665     : "function" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionExpression($name, $parameters, $code); }
1666     ;
1667
1668 StrictFormalParameters
1669     : FormalParameters[pass] { $$ = $pass; }
1670     ;
1671
1672 FormalParameters
1673     : LexBind LexOf { $$ = NULL; }
1674     | FormalParameterList
1675     ;
1676
1677 FormalParameterList_
1678     : "," FormalParameterList[parameters] { $$ = $parameters; }
1679     | { $$ = NULL; }
1680     ;
1681
1682 FormalParameterList
1683     : FunctionRestParameter { CYNOT(@$); }
1684     | FormalParameter[binding] FormalParameterList_[next] { $$ = CYNew CYFunctionParameter($binding, $next); }
1685     ;
1686
1687 FunctionRestParameter
1688     : BindingRestElement
1689     ;
1690
1691 FormalParameter
1692     : BindingElement[pass] { $$ = $pass; }
1693     ;
1694
1695 FunctionBody
1696     : LexPushYieldOff FunctionStatementList[code] LexPopYield { $$ = $code; }
1697     ;
1698
1699 FunctionStatementList
1700     : LexPushReturnOn StatementListOpt[code] LexPopReturn { $$ = $code; }
1701     ;
1702 /* }}} */
1703 /* 14.2 Arrow Function Definitions {{{ */
1704 ArrowFunction
1705     : ArrowParameters[parameters] LexNewLineOrOpt "=>" LexNoBrace ConciseBody[code] { $$ = CYNew CYFatArrow($parameters, $code); }
1706     ;
1707
1708 ArrowParameters
1709     : BindingIdentifier[identifier] { $$ = CYNew CYFunctionParameter(CYNew CYBinding($identifier)); }
1710     | LexOf CoverParenthesizedExpressionAndArrowParameterList[cover] { if ($cover == NULL) $$ = NULL; else { $$ = $cover->expression_->Parameter(); if ($$ == NULL) CYERR(@cover, "invalid parameter list"); } }
1711     ;
1712
1713 ConciseBody
1714     : AssignmentExpression[expression] { $$ = CYNew CYReturn($expression); }
1715     | LexOf ";{" FunctionBody[code] "}" { $$ = $code; }
1716     ;
1717 /* }}} */
1718 /* 14.3 Method Definitions {{{ */
1719 MethodDefinition
1720     : PropertyName[name] "(" StrictFormalParameters[parameters] ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertyMethod($name, $parameters, $code); }
1721     | GeneratorMethod[pass] { $$ = $pass; }
1722     | "get" PropertyName[name] "(" ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertyGetter($name, $code); }
1723     | "set" PropertyName[name] "(" PropertySetParameterList[parameter] ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertySetter($name, $parameter, $code); }
1724     ;
1725
1726 PropertySetParameterList
1727     : FormalParameter[binding] { $$ = CYNew CYFunctionParameter($binding); }
1728     ;
1729 /* }}} */
1730 /* 14.4 Generator Function Definitions {{{ */
1731 GeneratorMethod
1732     : "*" PropertyName[name] "(" StrictFormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorMethod($name, $parameters, $code); */ }
1733     ;
1734
1735 GeneratorDeclaration
1736     : ";function" LexOf "*" BindingIdentifier[name] "(" FormalParameters[code] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorStatement($name, $parameters, $code); */ }
1737     ;
1738
1739 GeneratorExpression
1740     : "function" LexOf "*" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorExpression($name, $parameters, $code); */ }
1741     ;
1742
1743 GeneratorBody
1744     : LexPushYieldOn FunctionStatementList[code] LexPopYield { $$ = $code; }
1745     ;
1746
1747 YieldExpression
1748     : "!yield" LexNewLineOrNot "\n" LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
1749     | "!yield" LexNewLineOrNot "" LexNoStar LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
1750     | "!yield" LexNewLineOrNot "" LexNoStar AssignmentExpression[value] { CYNOT(@$); /* $$ = CYNew CYYieldValue($value); */ }
1751     | "!yield" LexNewLineOrNot "" LexNoStar LexOf "yield *" AssignmentExpression[generator] { CYNOT(@$); /* $$ = CYNew CYYieldGenerator($generator); */ }
1752     ;
1753 /* }}} */
1754 /* 14.5 Class Definitions {{{ */
1755 ClassDeclaration
1756     : ";class" BindingIdentifier[name] ClassTail[tail] { $$ = CYNew CYClassStatement($name, $tail); }
1757     ;
1758
1759 ClassExpression
1760     : "class" BindingIdentifierOpt[name] ClassTail[tail] { $$ = CYNew CYClassExpression($name, $tail); }
1761     ;
1762
1763 ClassTail
1764     : ClassHeritageOpt[tail] { driver.class_.push($tail); } "{" LexPushSuperOn ClassBodyOpt "}" LexPopSuper { driver.class_.pop(); $$ = $tail; }
1765     ;
1766
1767 ClassHeritage
1768     : "extends" AccessExpression[extends] { $$ = CYNew CYClassTail($extends); }
1769     ;
1770
1771 ClassHeritageOpt
1772     : ClassHeritage[pass] { $$ = $pass; }
1773     | { $$ = CYNew CYClassTail(NULL); }
1774     ;
1775
1776 ClassBody
1777     : ClassElementList
1778     ;
1779
1780 ClassBodyOpt
1781     : ClassBody
1782     |
1783     ;
1784
1785 ClassElementList
1786     : ClassElementListOpt ClassElement
1787     ;
1788
1789 ClassElementListOpt
1790     : ClassElementList
1791     |
1792     ;
1793
1794 ClassElement
1795     : MethodDefinition[method] { if (CYFunctionExpression *constructor = $method->Constructor()) driver.class_.top()->constructor_ = constructor; else driver.class_.top()->instance_->*$method; }
1796     | "static" MethodDefinition[method] { driver.class_.top()->static_->*$method; }
1797     | ";"
1798     ;
1799 /* }}} */
1800
1801 /* 15.1 Scripts {{{ */
1802 Script
1803     : ScriptBodyOpt[code] { driver.script_ = CYNew CYScript($code); }
1804     ;
1805
1806 ScriptBody
1807     : StatementList[pass] { $$ = $pass; }
1808     ;
1809
1810 ScriptBodyOpt
1811     : ScriptBody[pass] { $$ = $pass; }
1812     | LexSetStatement LexLet LexOf { $$ = NULL; }
1813     ;
1814 /* }}} */
1815 /* 15.2 Modules {{{ */
1816 Module
1817     : ModuleBodyOpt
1818     ;
1819
1820 ModuleBody
1821     : ModuleItemList
1822     ;
1823
1824 ModuleBodyOpt
1825     : ModuleBody
1826     |
1827     ;
1828
1829 ModuleItemList
1830     : ModuleItemListOpt ModuleItem
1831     ;
1832
1833 ModuleItemListOpt
1834     : ModuleItemList
1835     |
1836     ;
1837
1838 ModuleItem
1839     : LexSetStatement LexLet LexOf ImportDeclaration
1840     | LexSetStatement LexLet LexOf ExportDeclaration
1841     | StatementListItem
1842     ;
1843 /* }}} */
1844 /* 15.2.2 Imports {{{ */
1845 ImportDeclaration
1846     : "import" ImportClause FromClause Terminator
1847     | "import" LexOf ModuleSpecifier Terminator
1848     ;
1849
1850 ImportClause
1851     : ImportedDefaultBinding
1852     | LexOf NameSpaceImport
1853     | LexOf NamedImports
1854     | ImportedDefaultBinding "," NameSpaceImport
1855     | ImportedDefaultBinding "," NamedImports
1856     ;
1857
1858 ImportedDefaultBinding
1859     : ImportedBinding
1860     ;
1861
1862 NameSpaceImport
1863     : "*" "as" ImportedBinding
1864     ;
1865
1866 NamedImports
1867     : "{" ImportsListOpt "}"
1868     ;
1869
1870 FromClause
1871     : "from" ModuleSpecifier
1872     ;
1873
1874 ImportsList_
1875     : "," ImportsListOpt
1876     |
1877     ;
1878
1879 ImportsList
1880     : ImportSpecifier ImportsList_
1881     ;
1882
1883 ImportsListOpt
1884     : ImportsList
1885     | LexOf
1886     ;
1887
1888 ImportSpecifier
1889     : ImportedBinding
1890     | LexOf IdentifierName "as" ImportedBinding
1891     ;
1892
1893 ModuleSpecifier
1894     : StringLiteral
1895     ;
1896
1897 ImportedBinding
1898     : BindingIdentifier
1899     ;
1900 /* }}} */
1901 /* 15.2.3 Exports {{{ */
1902 ExportDeclaration_
1903     : "*" FromClause Terminator
1904     | ExportClause FromClause Terminator
1905     | ExportClause Terminator
1906     | VariableStatement
1907     | "default" LexSetStatement LexOf HoistableDeclaration
1908     | "default" LexSetStatement LexOf ClassDeclaration
1909     | "default" LexSetStatement AssignmentExpression Terminator
1910     ;
1911
1912 ExportDeclaration
1913     : "export" LexSetStatement LexLet LexOf ExportDeclaration_
1914     | "export" Declaration
1915     ;
1916
1917 ExportClause
1918     : ";{" ExportsListOpt "}"
1919     ;
1920
1921 ExportsList_
1922     : "," ExportsListOpt
1923     |
1924     ;
1925
1926 ExportsList
1927     : ExportSpecifier ExportsList_
1928     ;
1929
1930 ExportsListOpt
1931     : ExportsList
1932     |
1933     ;
1934
1935 ExportSpecifier
1936     : IdentifierName
1937     | IdentifierName "as" IdentifierName
1938     ;
1939 /* }}} */
1940
1941 @begin C
1942 /* Cycript (C): Type Encoding {{{ */
1943 TypeSignifier
1944     : IdentifierType[identifier] { $$ = CYNew CYTypedIdentifier(@identifier, $identifier); }
1945     | "(" "*" TypeQualifierRight[typed] ")" { $$ = $typed; }
1946     ;
1947
1948 SuffixedType
1949     : SuffixedType[typed] "[" NumericLiteral[size] "]" { $$ = $typed; $$->modifier_ = CYNew CYTypeArrayOf($size, $$->modifier_); }
1950     | "(" "^" TypeQualifierRight[typed] ")" "(" TypedParameterListOpt[parameters] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypeBlockWith($parameters, $$->modifier_); }
1951     | TypeSignifier[typed] "(" TypedParameterListOpt[parameters] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypeFunctionWith($parameters, $$->modifier_); }
1952     | "("[parenthesis] TypedParameterListOpt[parameters] ")" { $$ = CYNew CYTypedIdentifier(@parenthesis); $$->modifier_ = CYNew CYTypeFunctionWith($parameters, $$->modifier_); }
1953     | TypeSignifier[pass] { $$ = $pass; }
1954     | { $$ = CYNew CYTypedIdentifier(@$); }
1955     ;
1956
1957 PrefixedType
1958     : "*" TypeQualifierRight[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypePointerTo($$->modifier_); }
1959     ;
1960
1961 TypeQualifierLeft
1962     : { $$ = NULL; }
1963     | "const" TypeQualifierLeft[modifier] { $$ = $modifier; CYSetLast($$) = CYNew CYTypeConstant(); }
1964     | "volatile" TypeQualifierLeft[modifier] { $$ = $modifier; CYSetLast($$) = CYNew CYTypeVolatile(); }
1965     ;
1966
1967 TypeQualifierRight
1968     : PrefixedType[pass] { $$ = $pass; }
1969     | SuffixedType[pass] { $$ = $pass; }
1970     | "const" TypeQualifierRight[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypeConstant($$->modifier_); }
1971     | "volatile" TypeQualifierRight[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypeVolatile($$->modifier_); }
1972     ;
1973
1974 IntegerType
1975     : "int" { $$ = CYNew CYTypeVariable("int"); }
1976     | "unsigned" IntegerTypeOpt[specifier] { $$ = CYNew CYTypeUnsigned($specifier); }
1977     | "signed" IntegerTypeOpt[specifier] { $$ = CYNew CYTypeSigned($specifier); }
1978     | "long" IntegerTypeOpt[specifier] { $$ = CYNew CYTypeLong($specifier); }
1979     | "short" IntegerTypeOpt[specifier] { $$ = CYNew CYTypeShort($specifier); }
1980     ;
1981
1982 IntegerTypeOpt
1983     : IntegerType[pass] { $$ = $pass; }
1984     | { $$ = CYNew CYTypeVariable("int"); }
1985     ;
1986
1987 StructFieldListOpt
1988     : TypedIdentifierMaybe[typed] ";" StructFieldListOpt[next] { $$ = CYNew CYTypeStructField($typed, $next); }
1989     | { $$ = NULL; }
1990     ;
1991
1992 PrimitiveType
1993     : IdentifierType[name] { $$ = CYNew CYTypeVariable($name); }
1994     | IntegerType[pass] { $$ = $pass; }
1995     | "void" { $$ = CYNew CYTypeVoid(); }
1996     | "char" { $$ = CYNew CYTypeVariable("char"); }
1997     | "signed" "char" { $$ = CYNew CYTypeSigned(CYNew CYTypeVariable("char")); }
1998     | "unsigned" "char" { $$ = CYNew CYTypeUnsigned(CYNew CYTypeVariable("char")); }
1999     | "struct" IdentifierTypeOpt[name] "{" StructFieldListOpt[fields] "}" { $$ = CYNew CYTypeStruct($name, $fields); }
2000     ;
2001
2002 TypedIdentifierMaybe
2003     : TypeQualifierLeft[modifier] PrimitiveType[specifier] TypeQualifierRight[typed] { $$ = $typed; $$->specifier_ = $specifier; CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
2004     ;
2005
2006 TypedIdentifierYes
2007     : TypedIdentifierMaybe[typed] { if ($typed->identifier_ == NULL) CYERR($typed->location_, "expected identifier"); $$ = $typed; }
2008     ;
2009
2010 TypedIdentifierNo
2011     : TypedIdentifierMaybe[typed] { if ($typed->identifier_ != NULL) CYERR($typed->location_, "unexpected identifier"); $$ = $typed; }
2012     ;
2013
2014 PrimaryExpression
2015     : "@encode" "(" TypedIdentifierMaybe[typed] ")" { $$ = CYNew CYEncodedType($typed); }
2016     ;
2017 /* }}} */
2018 @end
2019
2020 @begin ObjectiveC
2021 /* Cycript (Objective-C): @class Declaration {{{ */
2022 ClassSuperOpt
2023     /* XXX: why the hell did I choose MemberExpression? */
2024     : ":" MemberExpression[extends] { $$ = $extends; }
2025     | { $$ = NULL; }
2026     ;
2027
2028 ImplementationFieldListOpt
2029     : TypedIdentifierMaybe[typed] ";" ImplementationFieldListOpt[next] { $$ = CYNew CYImplementationField($typed, $next); }
2030     | { $$ = NULL; }
2031     ;
2032
2033 MessageScope
2034     : "+" { $$ = false; }
2035     | "-" { $$ = true; }
2036     ;
2037
2038 TypeOpt
2039     : "(" TypedIdentifierNo[type] ")" { $$ = $type; }
2040     | { $$ = CYNew CYTypedIdentifier(CYNew CYTypeVariable("id")); }
2041     ;
2042
2043 MessageParameter
2044     : Word[tag] ":" TypeOpt[type] BindingIdentifier[identifier] { $type->identifier_ = $identifier; $$ = CYNew CYMessageParameter($tag, $type); }
2045     ;
2046
2047 MessageParameterList
2048     : MessageParameter[parameter] MessageParameterListOpt[next] { $parameter->SetNext($next); $$ = $parameter; }
2049     ;
2050
2051 MessageParameterListOpt
2052     : MessageParameterList[pass] { $$ = $pass; }
2053     | { $$ = NULL; }
2054     ;
2055
2056 MessageParameters
2057     : MessageParameterList[pass] { $$ = $pass; }
2058     | Word[tag] { $$ = CYNew CYMessageParameter($tag, NULL); }
2059     ;
2060
2061 ClassMessageDeclaration
2062     : MessageScope[instance] TypeOpt[type] MessageParameters[parameters] "{" LexPushSuperOn FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYMessage($instance, $type, $parameters, $code); }
2063     ;
2064
2065 ClassMessageDeclarationListOpt
2066     : ClassMessageDeclarationListOpt[next] ClassMessageDeclaration[message] { $message->SetNext($next); $$ = $message; }
2067     | { $$ = NULL; }
2068     ;
2069
2070 // XXX: this should be AssignmentExpressionNoRight
2071 ClassProtocols
2072     : ShiftExpression[name] ClassProtocolsOpt[next] { $$ = CYNew CYProtocol($name, $next); }
2073     ;
2074
2075 ClassProtocolsOpt
2076     : "," ClassProtocols[protocols] { $$ = $protocols; }
2077     | { $$ = NULL; }
2078     ;
2079
2080 ClassProtocolListOpt
2081     : "<" ClassProtocols[protocols] ">" { $$ = $protocols; }
2082     | { $$ = NULL; }
2083     ;
2084
2085 ImplementationStatement
2086     : "@implementation" Identifier[name] ClassSuperOpt[extends] ClassProtocolListOpt[protocols] "{" ImplementationFieldListOpt[fields] "}" ClassMessageDeclarationListOpt[messages] "@end" { $$ = CYNew CYImplementation($name, $extends, $protocols, $fields, $messages); }
2087     ;
2088
2089 CategoryName
2090     : "(" WordOpt ")"
2091     ;
2092
2093 CategoryStatement
2094     : "@implementation" Identifier[name] CategoryName ClassMessageDeclarationListOpt[messages] "@end" { $$ = CYNew CYCategory($name, $messages); }
2095     ;
2096
2097 Statement__
2098     : ImplementationStatement[pass] { $$ = $pass; }
2099     | CategoryStatement[pass] { $$ = $pass; }
2100     ;
2101 /* }}} */
2102 /* Cycript (Objective-C): Send Message {{{ */
2103 VariadicCall
2104     : "," AssignmentExpressionClassic[value] VariadicCall[next] { $$ = CYNew CYArgument(NULL, $value, $next); }
2105     | { $$ = NULL; }
2106     ;
2107
2108 SelectorWordOpt
2109     : WordOpt[name] { driver.contexts_.back().words_.push_back($name); } { $$ = $name; }
2110     | AutoComplete { driver.mode_ = CYDriver::AutoMessage; YYACCEPT; }
2111     ;
2112
2113 SelectorCall_
2114     : SelectorCall[pass] { $$ = $pass; }
2115     | VariadicCall[pass] { $$ = $pass; }
2116     ;
2117
2118 SelectorCall
2119     : SelectorWordOpt[name] ":" AssignmentExpressionClassic[value] SelectorCall_[next] { $$ = CYNew CYArgument($name ?: CYNew CYWord(""), $value, $next); }
2120     ;
2121
2122 SelectorList
2123     : SelectorCall[pass] { $$ = $pass; }
2124     | Word[name] { $$ = CYNew CYArgument($name, NULL); }
2125     ;
2126
2127 MessageExpression
2128     : "[" AssignmentExpressionClassic[self] { driver.contexts_.push_back($self); } SelectorList[arguments] "]" { driver.contexts_.pop_back(); } { $$ = CYNew CYSendDirect($self, $arguments); }
2129     | "[" LexOf "super" { driver.context_ = NULL; } SelectorList[arguments] "]" { $$ = CYNew CYSendSuper($arguments); }
2130     ;
2131
2132 SelectorExpression_
2133     : WordOpt[name] ":" SelectorExpressionOpt[next] { $$ = CYNew CYSelectorPart($name, true, $next); }
2134     ;
2135
2136 SelectorExpression
2137     : SelectorExpression_[pass] { $$ = $pass; }
2138     | Word[name] { $$ = CYNew CYSelectorPart($name, false, NULL); }
2139     ;
2140
2141 SelectorExpressionOpt
2142     : SelectorExpression_[pass] { $$ = $pass; }
2143     | { $$ = NULL; }
2144     ;
2145
2146 PrimaryExpression
2147     : MessageExpression[pass] { $$ = $pass; }
2148     | "@selector" "(" SelectorExpression[parts] ")" { $$ = CYNew CYSelector($parts); }
2149     ;
2150 /* }}} */
2151 @end
2152
2153 /* Cycript: @import Directive {{{ */
2154 ModulePath
2155     : ModulePath[next] "." Word[part] { $$ = CYNew CYModule($part, $next); }
2156     | Word[part] { $$ = CYNew CYModule($part); }
2157     ;
2158
2159 Declaration_
2160     : "@import" ModulePath[path] { $$ = CYNew CYImport($path); }
2161     ;
2162 /* }}} */
2163
2164 @begin ObjectiveC
2165 /* Cycript (Objective-C): Boxed Expressions {{{ */
2166 BoxableExpression
2167     : NullLiteral[pass] { $$ = $pass; }
2168     | BooleanLiteral[pass] { $$ = $pass; }
2169     | NumericLiteral[pass] { $$ = $pass; }
2170     | StringLiteral[pass] { $$ = $pass; }
2171     | ArrayLiteral[pass] { $$ = $pass; }
2172     | ObjectLiteral[pass] { $$ = $pass; }
2173     | CoverParenthesizedExpressionAndArrowParameterList[pass] { $$ = $pass; }
2174     | "YES" { $$ = CYNew CYTrue(); }
2175     | "NO" { $$ = CYNew CYFalse(); }
2176     ;
2177
2178 PrimaryExpression
2179     : "@" BoxableExpression[expression] { $$ = CYNew CYBox($expression); }
2180     | "@YES" { $$ = CYNew CYBox(CYNew CYTrue()); }
2181     | "@NO" { $$ = CYNew CYBox(CYNew CYFalse()); }
2182     | "@true" { $$ = CYNew CYBox(CYNew CYTrue()); }
2183     | "@false" { $$ = CYNew CYBox(CYNew CYFalse()); }
2184     | "@null" { $$ = CYNew CYBox(CYNew CYNull()); }
2185     ;
2186 /* }}} */
2187 /* Cycript (Objective-C): Block Expressions {{{ */
2188 PrimaryExpression
2189     : "^" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { if (CYTypeFunctionWith *function = $type->Function()) $$ = CYNew CYObjCBlock($type, function->parameters_, $code); else CYERR($type->location_, "expected parameters"); }
2190     ;
2191 /* }}} */
2192 /* Cycript (Objective-C): Instance Literals {{{ */
2193 PrimaryExpression
2194     : "#" NumericLiteral[address] { $$ = CYNew CYInstanceLiteral($address); }
2195     ;
2196 /* }}} */
2197 @end
2198
2199 @begin C
2200 /* Cycript (C): Pointer Indirection/Addressing {{{ */
2201 UnaryExpression_
2202     : IndirectExpression[pass] { $$ = $pass; }
2203     ;
2204
2205 IndirectExpression
2206     : "*" UnaryExpression[rhs] { $$ = CYNew CYIndirect($rhs); }
2207     ;
2208
2209 UnaryExpression_
2210     : "&" UnaryExpression[rhs] { $$ = CYNew CYAddressOf($rhs); }
2211     ;
2212
2213 MemberAccess
2214     : "->" "[" Expression[property] "]" { $$ = CYNew CYIndirectMember(NULL, $property); }
2215     | "->" IdentifierName[property] { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($property)); }
2216     | "->" AutoComplete { driver.mode_ = CYDriver::AutoIndirect; YYACCEPT; }
2217     ;
2218 /* }}} */
2219 /* Cycript (C): Lambda Expressions {{{ */
2220 TypedParameterList_
2221     : "," TypedParameterList[parameters] { $$ = $parameters; }
2222     | { $$ = NULL; }
2223     ;
2224
2225 TypedParameterList
2226     : TypedIdentifierMaybe[typed] TypedParameterList_[next] { $$ = CYNew CYTypedParameter($typed, $next); }
2227     ;
2228
2229 TypedParameterListOpt
2230     : TypedParameterList[pass] { $$ = $pass; }
2231     | { $$ = NULL; }
2232     ;
2233
2234 PrimaryExpression
2235     : "[" LexOf "&" "]" "(" TypedParameterListOpt[parameters] ")" "->" TypedIdentifierMaybe[type] "{" FunctionBody[code] "}" { $$ = CYNew CYLambda($type, $parameters, $code); }
2236     ;
2237 /* }}} */
2238 /* Cycript (C): Type Definitions {{{ */
2239 IdentifierNoOf
2240     : "typedef" NewLineOpt { $$ = CYNew CYIdentifier("typedef"); }
2241     ;
2242
2243 Statement__
2244     : "typedef" NewLineNot TypedIdentifierYes[typed] Terminator { $$ = CYNew CYTypeDefinition($typed); }
2245     ;
2246
2247 PrimaryExpression
2248     : "(" LexOf "typedef" NewLineOpt TypedIdentifierNo[typed] ")" { $$ = CYNew CYTypeExpression($typed); }
2249     ;
2250 /* }}} */
2251 /* Cycript (C): extern "C" {{{ */
2252 IdentifierNoOf
2253     : "extern" NewLineOpt { $$ = CYNew CYIdentifier("extern"); }
2254     ;
2255
2256 Statement__
2257     : "extern" NewLineNot StringLiteral[abi] { if (strcmp($abi->Value(), "C") != 0) CYERR(@abi, "unknown extern binding"); } TypedIdentifierYes[typed] Terminator { $$ = CYNew CYExternal($abi, $typed); }
2258     ;
2259 /* }}} */
2260
2261 @end
2262
2263 @begin E4X
2264 /* Lexer State {{{ */
2265 LexPushRegExp
2266     : { driver.PushCondition(CYDriver::RegExpCondition); }
2267     ;
2268
2269 LexPushXMLContent
2270     : { driver.PushCondition(CYDriver::XMLContentCondition); }
2271     ;
2272
2273 LexPushXMLTag
2274     : { driver.PushCondition(CYDriver::XMLTagCondition); }
2275     ;
2276
2277 LexPop
2278     : { driver.PopCondition(); }
2279     ;
2280
2281 LexSetXMLContent
2282     : { driver.SetCondition(CYDriver::XMLContentCondition); }
2283     ;
2284
2285 LexSetXMLTag
2286     : { driver.SetCondition(CYDriver::XMLTagCondition); }
2287     ;
2288 /* }}} */
2289 /* Virtual Tokens {{{ */
2290 XMLWhitespaceOpt
2291     : XMLWhitespace
2292     |
2293     ;
2294 /* }}} */
2295
2296 /* 8.1 Context Keywords {{{ */
2297 Identifier
2298     : "namespace" { $$ = CYNew CYIdentifier("namespace"); }
2299     | "xml" { $$ = CYNew CYIdentifier("xml"); }
2300     ;
2301 /* }}} */
2302 /* 8.3 XML Initializer Input Elements {{{ */
2303 XMLMarkup
2304     : XMLComment { $$ = $1; }
2305     | XMLCDATA { $$ = $1; }
2306     | XMLPI { $$ = $1; }
2307     ;
2308 /* }}} */
2309
2310 /* 11.1 Primary Expressions {{{ */
2311 PrimaryExpression
2312     : PropertyIdentifier { $$ = CYNew CYPropertyVariable($1); }
2313     | XMLInitilizer { $$ = $1; }
2314     | XMLListInitilizer { $$ = $1; }
2315     ;
2316
2317 PropertyIdentifier
2318     : AttributeIdentifier { $$ = $1; }
2319     | QualifiedIdentifier { $$ = $1; }
2320     | WildcardIdentifier { $$ = $1; }
2321     ;
2322 /* }}} */
2323 /* 11.1.1 Attribute Identifiers {{{ */
2324 AttributeIdentifier
2325     : "@" QualifiedIdentifier_ { $$ = CYNew CYAttribute($2); }
2326     ;
2327
2328 PropertySelector_
2329     : PropertySelector { $$ = $1; }
2330     | "[" Expression "]" { $$ = CYNew CYSelector($2); }
2331     ;
2332
2333 PropertySelector
2334     : Identifier { $$ = CYNew CYSelector($1); }
2335     | WildcardIdentifier { $$ = $1; }
2336     ;
2337 /* }}} */
2338 /* 11.1.2 Qualified Identifiers {{{ */
2339 QualifiedIdentifier_
2340     : PropertySelector_ { $$ = CYNew CYQualified(NULL, $1); }
2341     | QualifiedIdentifier { $$ = $1; }
2342     ;
2343
2344 QualifiedIdentifier
2345     : PropertySelector "::" PropertySelector_ { $$ = CYNew CYQualified($1, $3); }
2346     ;
2347 /* }}} */
2348 /* 11.1.3 Wildcard Identifiers {{{ */
2349 WildcardIdentifier
2350     : "*" { $$ = CYNew CYWildcard(); }
2351     ;
2352 /* }}} */
2353 /* 11.1.4 XML Initializer {{{ */
2354 XMLInitilizer
2355     : XMLMarkup { $$ = $1; }
2356     | XMLElement { $$ = $1; }
2357     ;
2358
2359 XMLElement
2360     : "<" LexPushInOff XMLTagContent LexPop "/>" LexPopIn
2361     | "<" LexPushInOff XMLTagContent ">" LexSetXMLContent XMLElementContentOpt "</" LexSetXMLTag XMLTagName XMLWhitespaceOpt LexPop ">" LexPopIn
2362     ;
2363
2364 XMLTagContent
2365     : LexPushXMLTag XMLTagName XMLAttributes
2366     ;
2367
2368 XMLExpression
2369     : "{" LexPushRegExp Expression LexPop "}"
2370     ;
2371
2372 XMLTagName
2373     : XMLExpression
2374     | XMLName
2375     ;
2376
2377 XMLAttributes_
2378     : XMLAttributes_ XMLAttribute
2379     |
2380     ;
2381
2382 XMLAttributes
2383     : XMLAttributes_ XMLWhitespace XMLExpression XMLWhitespaceOpt
2384     | XMLAttributes_ XMLWhitespaceOpt
2385     ;
2386
2387 XMLAttributeValue_
2388     : XMLExpression
2389     | XMLAttributeValue
2390     ;
2391
2392 XMLAttribute
2393     : XMLWhitespace XMLName XMLWhitespaceOpt "=" XMLWhitespaceOpt XMLAttributeValue_
2394     ;
2395
2396 XMLElementContent
2397     : XMLExpression XMLElementContentOpt
2398     | XMLMarkup XMLElementContentOpt
2399     | XMLText XMLElementContentOpt
2400     | XMLElement XMLElementContentOpt
2401     ;
2402
2403 XMLElementContentOpt
2404     : XMLElementContent
2405     |
2406     ;
2407 /* }}} */
2408 /* 11.1.5 XMLList Initializer {{{ */
2409 XMLListInitilizer
2410     : "<>" LexPushInOff LexPushXMLContent XMLElementContent LexPop "</>" LexPopIn { $$ = CYNew CYXMLList($4); }
2411     ;
2412 /* }}} */
2413
2414 /* 11.2 Left-Hand-Side Expressions {{{ */
2415 PropertyIdentifier_
2416     : Identifier { $$ = $1; }
2417     | PropertyIdentifier { $$ = $1; }
2418     ;
2419
2420 MemberAccess
2421     : "." PropertyIdentifier { $$ = CYNew CYPropertyMember(NULL, $2); }
2422     | ".." PropertyIdentifier_ { $$ = CYNew CYDescendantMember(NULL, $2); }
2423     | "." "(" Expression ")" { $$ = CYNew CYFilteringPredicate(NULL, $3); }
2424     ;
2425 /* }}} */
2426 /* 12.1 The default xml namespace Statement {{{ */
2427 /* XXX: DefaultXMLNamespaceStatement
2428     : "default" "xml" "namespace" "=" Expression Terminator { $$ = CYNew CYDefaultXMLNamespace($5); }
2429     ;
2430
2431 Statement__
2432     : DefaultXMLNamespaceStatement { $$ = $1; }
2433     ; */
2434 /* }}} */
2435 @end
2436
2437 /* JavaScript FTL: Array Comprehensions {{{ */
2438 Comprehension
2439     : AssignmentExpression[expression] ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }
2440     ;
2441
2442 ComprehensionFor
2443     : "for" "each" "(" LexPushInOn LexBind ForBinding[binding] "!in" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForOfComprehension($binding, $iterable); }
2444     ;
2445 /* }}} */
2446 /* JavaScript FTL: for each {{{ */
2447 IterationStatement
2448     : "for" "each" "(" LexPushInOn ForInStatementInitializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForOf($initializer, $iterable, $code); }
2449     ;
2450 /* }}} */
2451
2452 /* JavaScript FTW: Array Comprehensions {{{ */
2453 PrimaryExpression
2454     : ArrayComprehension
2455     ;
2456
2457 ArrayComprehension
2458     : "[" Comprehension[comprehension] "]" { $$ = $comprehension; }
2459     ;
2460
2461 Comprehension
2462     : LexOf ComprehensionFor[comprehension] ComprehensionTail[next] AssignmentExpression[expression] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }
2463     ;
2464
2465 ComprehensionTail
2466     : { $$ = NULL; }
2467     | ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }
2468     | ComprehensionIf[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }
2469     ;
2470
2471 ComprehensionFor
2472     : "for" "(" LexPushInOn LexBind ForBinding[binding] "!in" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForInComprehension($binding, $iterable); }
2473     | "for" "(" LexPushInOn LexBind ForBinding[binding] "of" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForOfComprehension($binding, $iterable); }
2474     ;
2475
2476 ComprehensionIf
2477     : "if" "(" AssignmentExpression[test] ")" { $$ = CYNew CYIfComprehension($test); }
2478     ;
2479 /* }}} */
2480 /* JavaScript FTW: Coalesce Operator {{{ */
2481 ConditionalExpression
2482     : LogicalORExpression[test] "?" LexPushInOff LexOf ":" LexPopIn AssignmentExpression[false] { $$ = CYNew CYCondition($test, $test, $false); }
2483     ;
2484 /* }}} */
2485 /* JavaScript FTW: Named Arguments {{{ */
2486 ArgumentList
2487     : LexOf Word[tag] ":" AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument($tag, $value, $next); }
2488     ;
2489 /* }}} */
2490 /* JavaScript FTW: Ruby Blocks {{{ */
2491 RubyProcParameterList_
2492     : "," RubyProcParameterList[parameters] { $$ = $parameters; }
2493     | { $$ = NULL; }
2494     ;
2495
2496 RubyProcParameterList
2497     : BindingIdentifier[identifier] RubyProcParameterList_[next] { $$ = CYNew CYFunctionParameter(CYNew CYBinding($identifier), $next); }
2498     | LexOf { $$ = NULL; }
2499     ;
2500
2501 RubyProcParameters
2502     : "|" RubyProcParameterList[parameters] "|" { $$ = $parameters; }
2503     | "||" { $$ = NULL; }
2504     ;
2505
2506 RubyProcParametersOpt
2507     : RubyProcParameters[pass] { $$ = $pass; }
2508     | { $$ = NULL; }
2509     ;
2510
2511 RubyProcExpression
2512     : "{" RubyProcParametersOpt[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }
2513     ;
2514
2515 PrimaryExpression
2516     : "{" RubyProcParameters[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }
2517     ;
2518
2519 PostfixExpression
2520     : PostfixExpression[lhs] RubyProcExpression[rhs] LexNewLineOrOpt { $$ = CYNew CYRubyBlock($lhs, $rhs); }
2521     ;
2522 /* }}} */
2523
2524 %%
2525
2526 bool CYDriver::Parse(CYMark mark) {
2527     mark_ = mark;
2528     CYLocal<CYPool> local(&pool_);
2529     cy::parser parser(*this);
2530 #ifdef YYDEBUG
2531     parser.set_debug_level(debug_);
2532 #endif
2533     return parser.parse() != 0;
2534 }
2535
2536 void CYDriver::Warning(const cy::parser::location_type &location, const char *message) {
2537     if (!strict_)
2538         return;
2539
2540     CYDriver::Error error;
2541     error.warning_ = true;
2542     error.location_ = location;
2543     error.message_ = message;
2544     errors_.push_back(error);
2545 }
2546
2547 void cy::parser::error(const cy::parser::location_type &location, const std::string &message) {
2548     CYDriver::Error error;
2549     error.warning_ = false;
2550     error.location_ = location;
2551     error.message_ = message;
2552     driver.errors_.push_back(error);
2553 }