dlls/jscript/parser.y

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 %{
  20
  21 #include "jscript.h"
  22 #include "engine.h"
  23
  24 #define YYLEX_PARAM ctx
  25 #define YYPARSE_PARAM ctx
  26
  27 static int parser_error(const char*);
  28 static void set_error(parser_ctx_t*,UINT);
  29 static BOOL explicit_error(parser_ctx_t*,void*,WCHAR);
  30 static BOOL allow_auto_semicolon(parser_ctx_t*);
  31 static void program_parsed(parser_ctx_t*,source_elements_t*);
  32 static source_elements_t *function_body_parsed(parser_ctx_t*,source_elements_t*);
  33
  34 typedef struct _statement_list_t {
  35     statement_t *head;
  36     statement_t *tail;
  37 } statement_list_t;
  38
  39 static literal_t *new_string_literal(parser_ctx_t*,const WCHAR*);
  40 static literal_t *new_null_literal(parser_ctx_t*);
  41
  42 typedef struct _property_list_t {
  43     prop_val_t *head;
  44     prop_val_t *tail;
  45 } property_list_t;
  46
  47 static property_list_t *new_property_list(parser_ctx_t*,literal_t*,expression_t*);
  48 static property_list_t *property_list_add(parser_ctx_t*,property_list_t*,literal_t*,expression_t*);
  49
  50 typedef struct _element_list_t {
  51     array_element_t *head;
  52     array_element_t *tail;
  53 } element_list_t;
  54
  55 static element_list_t *new_element_list(parser_ctx_t*,int,expression_t*);
  56 static element_list_t *element_list_add(parser_ctx_t*,element_list_t*,int,expression_t*);
  57
  58 typedef struct _argument_list_t {
  59     argument_t *head;
  60     argument_t *tail;
  61 } argument_list_t;
  62
  63 static argument_list_t *new_argument_list(parser_ctx_t*,expression_t*);
  64 static argument_list_t *argument_list_add(parser_ctx_t*,argument_list_t*,expression_t*);
  65
  66 typedef struct _case_list_t {
  67     case_clausule_t *head;
  68     case_clausule_t *tail;
  69 } case_list_t;
  70
  71 static catch_block_t *new_catch_block(parser_ctx_t*,const WCHAR*,statement_t*);
  72 static case_clausule_t *new_case_clausule(parser_ctx_t*,expression_t*,statement_list_t*);
  73 static case_list_t *new_case_list(parser_ctx_t*,case_clausule_t*);
  74 static case_list_t *case_list_add(parser_ctx_t*,case_list_t*,case_clausule_t*);
  75 static case_clausule_t *new_case_block(parser_ctx_t*,case_list_t*,case_clausule_t*,case_list_t*);
  76
  77 typedef struct _variable_list_t {
  78     variable_declaration_t *head;
  79     variable_declaration_t *tail;
  80 } variable_list_t;
  81
  82 static variable_declaration_t *new_variable_declaration(parser_ctx_t*,const WCHAR*,expression_t*);
  83 static variable_list_t *new_variable_list(parser_ctx_t*,variable_declaration_t*);
  84 static variable_list_t *variable_list_add(parser_ctx_t*,variable_list_t*,variable_declaration_t*);
  85
  86 static statement_t *new_block_statement(parser_ctx_t*,statement_list_t*);
  87 static statement_t *new_var_statement(parser_ctx_t*,variable_list_t*);
  88 static statement_t *new_empty_statement(parser_ctx_t*);
  89 static statement_t *new_expression_statement(parser_ctx_t*,expression_t*);
  90 static statement_t *new_if_statement(parser_ctx_t*,expression_t*,statement_t*,statement_t*);
  91 static statement_t *new_while_statement(parser_ctx_t*,BOOL,expression_t*,statement_t*);
  92 static statement_t *new_for_statement(parser_ctx_t*,variable_list_t*,expression_t*,expression_t*,
  93         expression_t*,statement_t*);
  94 static statement_t *new_forin_statement(parser_ctx_t*,variable_declaration_t*,expression_t*,expression_t*,statement_t*);
  95 static statement_t *new_continue_statement(parser_ctx_t*,const WCHAR*);
  96 static statement_t *new_break_statement(parser_ctx_t*,const WCHAR*);
  97 static statement_t *new_return_statement(parser_ctx_t*,expression_t*);
  98 static statement_t *new_with_statement(parser_ctx_t*,expression_t*,statement_t*);
  99 static statement_t *new_labelled_statement(parser_ctx_t*,const WCHAR*,statement_t*);
 100 static statement_t *new_switch_statement(parser_ctx_t*,expression_t*,case_clausule_t*);
 101 static statement_t *new_throw_statement(parser_ctx_t*,expression_t*);
 102 static statement_t *new_try_statement(parser_ctx_t*,statement_t*,catch_block_t*,statement_t*);
 103
 104 struct statement_list_t {
 105    statement_t *head;
 106    statement_t *tail;
 107 };
 108
 109 static statement_list_t *new_statement_list(parser_ctx_t*,statement_t*);
 110 static statement_list_t *statement_list_add(statement_list_t*,statement_t*);
 111
 112 typedef struct _parameter_list_t {
 113     parameter_t *head;
 114     parameter_t *tail;
 115 } parameter_list_t;
 116
 117 static parameter_list_t *new_parameter_list(parser_ctx_t*,const WCHAR*);
 118 static parameter_list_t *parameter_list_add(parser_ctx_t*,parameter_list_t*,const WCHAR*);
 119
 120 static void push_func(parser_ctx_t*);
 121 static inline void pop_func(parser_ctx_t *ctx)
 122 {
 123     ctx->func_stack = ctx->func_stack->next;
 124 }
 125
 126 static expression_t *new_function_expression(parser_ctx_t*,const WCHAR*,parameter_list_t*,
 127         source_elements_t*,const WCHAR*,DWORD);
 128 static expression_t *new_binary_expression(parser_ctx_t*,expression_type_t,expression_t*,expression_t*);
 129 static expression_t *new_unary_expression(parser_ctx_t*,expression_type_t,expression_t*);
 130 static expression_t *new_conditional_expression(parser_ctx_t*,expression_t*,expression_t*,expression_t*);
 131 static expression_t *new_array_expression(parser_ctx_t*,expression_t*,expression_t*);
 132 static expression_t *new_member_expression(parser_ctx_t*,expression_t*,const WCHAR*);
 133 static expression_t *new_new_expression(parser_ctx_t*,expression_t*,argument_list_t*);
 134 static expression_t *new_call_expression(parser_ctx_t*,expression_t*,argument_list_t*);
 135 static expression_t *new_this_expression(parser_ctx_t*);
 136 static expression_t *new_identifier_expression(parser_ctx_t*,const WCHAR*);
 137 static expression_t *new_literal_expression(parser_ctx_t*,literal_t*);
 138 static expression_t *new_array_literal_expression(parser_ctx_t*,element_list_t*,int);
 139 static expression_t *new_prop_and_value_expression(parser_ctx_t*,property_list_t*);
 140
 141 static source_elements_t *new_source_elements(parser_ctx_t*);
 142 static source_elements_t *source_elements_add_statement(source_elements_t*,statement_t*);
 143
 144 %}
 145
 146 %pure_parser
 147 %start Program
 148
 149 %union {
 150     int                     ival;
 151     const WCHAR             *srcptr;
 152     LPCWSTR                 wstr;
 153     literal_t               *literal;
 154     struct _argument_list_t *argument_list;
 155     case_clausule_t         *case_clausule;
 156     struct _case_list_t     *case_list;
 157     catch_block_t           *catch_block;
 158     struct _element_list_t  *element_list;
 159     expression_t            *expr;
 160     const WCHAR            *identifier;
 161     struct _parameter_list_t *parameter_list;
 162     struct _property_list_t *property_list;
 163     source_elements_t       *source_elements;
 164     statement_t             *statement;
 165     struct _statement_list_t *statement_list;
 166     struct _variable_list_t *variable_list;
 167     variable_declaration_t  *variable_declaration;
 168 }
 169
 170 /* keywords */
 171 %token kBREAK kCASE kCATCH kCONTINUE kDEFAULT kDELETE kDO kELSE kIF kFINALLY kFOR kIN
 172 %token kINSTANCEOF kNEW kNULL kRETURN kSWITCH kTHIS kTHROW kTRUE kFALSE kTRY kTYPEOF kVAR kVOID kWHILE kWITH
 173 %token tANDAND tOROR tINC tDEC tHTMLCOMMENT kDIVEQ
 174
 175 %token <srcptr> kFUNCTION '}'
 176
 177 /* tokens */
 178 %token <identifier> tIdentifier
 179 %token <ival> tAssignOper tEqOper tShiftOper tRelOper
 180 %token <literal> tNumericLiteral tBooleanLiteral
 181 %token <wstr> tStringLiteral
 182 %token tEOF
 183
 184 %type <source_elements> SourceElements
 185 %type <source_elements> FunctionBody
 186 %type <statement> Statement
 187 %type <statement> Block
 188 %type <statement> VariableStatement
 189 %type <statement> EmptyStatement
 190 %type <statement> ExpressionStatement
 191 %type <statement> IfStatement
 192 %type <statement> IterationStatement
 193 %type <statement> ContinueStatement
 194 %type <statement> BreakStatement
 195 %type <statement> ReturnStatement
 196 %type <statement> WithStatement
 197 %type <statement> LabelledStatement
 198 %type <statement> SwitchStatement
 199 %type <statement> ThrowStatement
 200 %type <statement> TryStatement
 201 %type <statement> Finally
 202 %type <statement_list> StatementList StatementList_opt
 203 %type <parameter_list> FormalParameterList FormalParameterList_opt
 204 %type <expr> Expression Expression_opt Expression_err
 205 %type <expr> ExpressionNoIn ExpressionNoIn_opt
 206 %type <expr> FunctionExpression
 207 %type <expr> AssignmentExpression AssignmentExpressionNoIn
 208 %type <expr> ConditionalExpression ConditionalExpressionNoIn
 209 %type <expr> LeftHandSideExpression
 210 %type <expr> LogicalORExpression LogicalORExpressionNoIn
 211 %type <expr> LogicalANDExpression LogicalANDExpressionNoIn
 212 %type <expr> BitwiseORExpression BitwiseORExpressionNoIn
 213 %type <expr> BitwiseXORExpression BitwiseXORExpressionNoIn
 214 %type <expr> BitwiseANDExpression BitwiseANDExpressionNoIn
 215 %type <expr> EqualityExpression EqualityExpressionNoIn
 216 %type <expr> RelationalExpression RelationalExpressionNoIn
 217 %type <expr> ShiftExpression
 218 %type <expr> AdditiveExpression
 219 %type <expr> MultiplicativeExpression
 220 %type <expr> Initialiser_opt Initialiser
 221 %type <expr> InitialiserNoIn_opt InitialiserNoIn
 222 %type <expr> UnaryExpression
 223 %type <expr> PostfixExpression
 224 %type <expr> NewExpression
 225 %type <expr> CallExpression
 226 %type <expr> MemberExpression
 227 %type <expr> PrimaryExpression
 228 %type <identifier> Identifier_opt
 229 %type <variable_list> VariableDeclarationList
 230 %type <variable_list> VariableDeclarationListNoIn
 231 %type <variable_declaration> VariableDeclaration
 232 %type <variable_declaration> VariableDeclarationNoIn
 233 %type <case_list> CaseClausules CaseClausules_opt
 234 %type <case_clausule> CaseClausule DefaultClausule CaseBlock
 235 %type <catch_block> Catch
 236 %type <argument_list> Arguments
 237 %type <argument_list> ArgumentList
 238 %type <literal> Literal
 239 %type <expr> ArrayLiteral
 240 %type <expr> ObjectLiteral
 241 %type <ival> Elision Elision_opt
 242 %type <element_list> ElementList
 243 %type <property_list> PropertyNameAndValueList
 244 %type <literal> PropertyName
 245 %type <literal> BooleanLiteral
 246 %type <srcptr> KFunction
 247 %type <ival> AssignOper
 248
 249 %nonassoc LOWER_THAN_ELSE
 250 %nonassoc kELSE
 251
 252 %%
 253
 254 /* ECMA-262 3rd Edition    14 */
 255 Program
 256        : SourceElements HtmlComment tEOF
 257                                 { program_parsed(ctx, $1); }
 258
 259 HtmlComment
 260         : tHTMLCOMMENT          {}
 261         | /* empty */           {}
 262
 263 /* ECMA-262 3rd Edition    14 */
 264 SourceElements
 265         : /* empty */           { $$ = new_source_elements(ctx); }
 266         | SourceElements Statement
 267                                 { $$ = source_elements_add_statement($1, $2); }
 268
 269 /* ECMA-262 3rd Edition    13 */
 270 FunctionExpression
 271         : KFunction Identifier_opt left_bracket FormalParameterList_opt right_bracket '{' FunctionBody '}'
 272                                 { $$ = new_function_expression(ctx, $2, $4, $7, $1, $8-$1+1); }
 273
 274 KFunction
 275         : kFUNCTION             { push_func(ctx); $$ = $1; }
 276
 277 /* ECMA-262 3rd Edition    13 */
 278 FunctionBody
 279         : SourceElements        { $$ = function_body_parsed(ctx, $1); }
 280
 281 /* ECMA-262 3rd Edition    13 */
 282 FormalParameterList
 283         : tIdentifier           { $$ = new_parameter_list(ctx, $1); }
 284         | FormalParameterList ',' tIdentifier
 285                                 { $$ = parameter_list_add(ctx, $1, $3); }
 286
 287 /* ECMA-262 3rd Edition    13 */
 288 FormalParameterList_opt
 289         : /* empty */           { $$ = NULL; }
 290         | FormalParameterList   { $$ = $1; }
 291
 292 /* ECMA-262 3rd Edition    12 */
 293 Statement
 294         : Block                 { $$ = $1; }
 295         | VariableStatement     { $$ = $1; }
 296         | EmptyStatement        { $$ = $1; }
 297         | FunctionExpression    { $$ = new_empty_statement(ctx); } /* FIXME: return NULL */
 298         | ExpressionStatement   { $$ = $1; }
 299         | IfStatement           { $$ = $1; }
 300         | IterationStatement    { $$ = $1; }
 301         | ContinueStatement     { $$ = $1; }
 302         | BreakStatement        { $$ = $1; }
 303         | ReturnStatement       { $$ = $1; }
 304         | WithStatement         { $$ = $1; }
 305         | LabelledStatement     { $$ = $1; }
 306         | SwitchStatement       { $$ = $1; }
 307         | ThrowStatement        { $$ = $1; }
 308         | TryStatement          { $$ = $1; }
 309
 310 /* ECMA-262 3rd Edition    12.2 */
 311 StatementList
 312         : Statement             { $$ = new_statement_list(ctx, $1); }
 313         | StatementList Statement
 314                                 { $$ = statement_list_add($1, $2); }
 315
 316 /* ECMA-262 3rd Edition    12.2 */
 317 StatementList_opt
 318         : /* empty */           { $$ = NULL; }
 319         | StatementList         { $$ = $1; }
 320
 321 /* ECMA-262 3rd Edition    12.1 */
 322 Block
 323         : '{' StatementList '}' { $$ = new_block_statement(ctx, $2); }
 324         | '{' '}'               { $$ = new_block_statement(ctx, NULL); }
 325
 326 /* ECMA-262 3rd Edition    12.2 */
 327 VariableStatement
 328         : kVAR VariableDeclarationList semicolon_opt
 329                                 { $$ = new_var_statement(ctx, $2); }
 330
 331 /* ECMA-262 3rd Edition    12.2 */
 332 VariableDeclarationList
 333         : VariableDeclaration   { $$ = new_variable_list(ctx, $1); }
 334         | VariableDeclarationList ',' VariableDeclaration
 335                                 { $$ = variable_list_add(ctx, $1, $3); }
 336
 337 /* ECMA-262 3rd Edition    12.2 */
 338 VariableDeclarationListNoIn
 339         : VariableDeclarationNoIn
 340                                 { $$ = new_variable_list(ctx, $1); }
 341         | VariableDeclarationListNoIn ',' VariableDeclarationNoIn
 342                                 { $$ = variable_list_add(ctx, $1, $3); }
 343
 344 /* ECMA-262 3rd Edition    12.2 */
 345 VariableDeclaration
 346         : tIdentifier Initialiser_opt
 347                                 { $$ = new_variable_declaration(ctx, $1, $2); }
 348
 349 /* ECMA-262 3rd Edition    12.2 */
 350 VariableDeclarationNoIn
 351         : tIdentifier InitialiserNoIn_opt
 352                                 { $$ = new_variable_declaration(ctx, $1, $2); }
 353
 354 /* ECMA-262 3rd Edition    12.2 */
 355 Initialiser_opt
 356         : /* empty */           { $$ = NULL; }
 357         | Initialiser           { $$ = $1; }
 358
 359 /* ECMA-262 3rd Edition    12.2 */
 360 Initialiser
 361         : '=' AssignmentExpression
 362                                 { $$ = $2; }
 363
 364 /* ECMA-262 3rd Edition    12.2 */
 365 InitialiserNoIn_opt
 366         : /* empty */           { $$ = NULL; }
 367         | InitialiserNoIn       { $$ = $1; }
 368
 369 /* ECMA-262 3rd Edition    12.2 */
 370 InitialiserNoIn
 371         : '=' AssignmentExpressionNoIn
 372                                 { $$ = $2; }
 373
 374 /* ECMA-262 3rd Edition    12.3 */
 375 EmptyStatement
 376         : ';'                   { $$ = new_empty_statement(ctx); }
 377
 378 /* ECMA-262 3rd Edition    12.4 */
 379 ExpressionStatement
 380         : Expression semicolon_opt
 381                                 { $$ = new_expression_statement(ctx, $1); }
 382
 383 /* ECMA-262 3rd Edition    12.5 */
 384 IfStatement
 385         : kIF left_bracket Expression_err right_bracket Statement kELSE Statement
 386                                 { $$ = new_if_statement(ctx, $3, $5, $7); }
 387         | kIF left_bracket Expression_err right_bracket Statement %prec LOWER_THAN_ELSE
 388                                 { $$ = new_if_statement(ctx, $3, $5, NULL); }
 389
 390 /* ECMA-262 3rd Edition    12.6 */
 391 IterationStatement
 392         : kDO Statement kWHILE left_bracket Expression_err right_bracket semicolon_opt
 393                                 { $$ = new_while_statement(ctx, TRUE, $5, $2); }
 394         | kWHILE left_bracket Expression_err right_bracket Statement
 395                                 { $$ = new_while_statement(ctx, FALSE, $3, $5); }
 396         | kFOR left_bracket ExpressionNoIn_opt
 397                                 { if(!explicit_error(ctx, $3, ';')) YYABORT; }
 398         semicolon  Expression_opt
 399                                 { if(!explicit_error(ctx, $6, ';')) YYABORT; }
 400         semicolon Expression_opt right_bracket Statement
 401                                 { $$ = new_for_statement(ctx, NULL, $3, $6, $9, $11); }
 402         | kFOR left_bracket kVAR VariableDeclarationListNoIn
 403                                 { if(!explicit_error(ctx, $4, ';')) YYABORT; }
 404         semicolon Expression_opt
 405                                 { if(!explicit_error(ctx, $7, ';')) YYABORT; }
 406         semicolon Expression_opt right_bracket Statement
 407                                 { $$ = new_for_statement(ctx, $4, NULL, $7, $10, $12); }
 408         | kFOR left_bracket LeftHandSideExpression kIN Expression_err right_bracket Statement
 409                                 { $$ = new_forin_statement(ctx, NULL, $3, $5, $7); }
 410         | kFOR left_bracket kVAR VariableDeclarationNoIn kIN Expression_err right_bracket Statement
 411                                 { $$ = new_forin_statement(ctx, $4, NULL, $6, $8); }
 412
 413 /* ECMA-262 3rd Edition    12.7 */
 414 ContinueStatement
 415         : kCONTINUE /* NONL */ Identifier_opt semicolon_opt
 416                                 { $$ = new_continue_statement(ctx, $2); }
 417
 418 /* ECMA-262 3rd Edition    12.8 */
 419 BreakStatement
 420         : kBREAK /* NONL */ Identifier_opt semicolon_opt
 421                                 { $$ = new_break_statement(ctx, $2); }
 422
 423 /* ECMA-262 3rd Edition    12.9 */
 424 ReturnStatement
 425         : kRETURN /* NONL */ Expression_opt semicolon_opt
 426                                 { $$ = new_return_statement(ctx, $2); }
 427
 428 /* ECMA-262 3rd Edition    12.10 */
 429 WithStatement
 430         : kWITH left_bracket Expression right_bracket Statement
 431                                 { $$ = new_with_statement(ctx, $3, $5); }
 432
 433 /* ECMA-262 3rd Edition    12.12 */
 434 LabelledStatement
 435         : tIdentifier ':' Statement
 436                                 { $$ = new_labelled_statement(ctx, $1, $3); }
 437
 438 /* ECMA-262 3rd Edition    12.11 */
 439 SwitchStatement
 440         : kSWITCH left_bracket Expression right_bracket CaseBlock
 441                                 { $$ = new_switch_statement(ctx, $3, $5); }
 442
 443 /* ECMA-262 3rd Edition    12.11 */
 444 CaseBlock
 445         : '{' CaseClausules_opt '}'
 446                                  { $$ = new_case_block(ctx, $2, NULL, NULL); }
 447         | '{' CaseClausules_opt DefaultClausule CaseClausules_opt '}'
 448                                  { $$ = new_case_block(ctx, $2, $3, $4); }
 449
 450 /* ECMA-262 3rd Edition    12.11 */
 451 CaseClausules_opt
 452         : /* empty */            { $$ = NULL; }
 453         | CaseClausules          { $$ = $1; }
 454
 455 /* ECMA-262 3rd Edition    12.11 */
 456 CaseClausules
 457         : CaseClausule           { $$ = new_case_list(ctx, $1); }
 458         | CaseClausules CaseClausule
 459                                  { $$ = case_list_add(ctx, $1, $2); }
 460
 461 /* ECMA-262 3rd Edition    12.11 */
 462 CaseClausule
 463         : kCASE Expression ':' StatementList_opt
 464                                  { $$ = new_case_clausule(ctx, $2, $4); }
 465
 466 /* ECMA-262 3rd Edition    12.11 */
 467 DefaultClausule
 468         : kDEFAULT ':' StatementList_opt
 469                                  { $$ = new_case_clausule(ctx, NULL, $3); }
 470
 471 /* ECMA-262 3rd Edition    12.13 */
 472 ThrowStatement
 473         : kTHROW /* NONL */ Expression semicolon_opt
 474                                 { $$ = new_throw_statement(ctx, $2); }
 475
 476 /* ECMA-262 3rd Edition    12.14 */
 477 TryStatement
 478         : kTRY Block Catch      { $$ = new_try_statement(ctx, $2, $3, NULL); }
 479         | kTRY Block Finally    { $$ = new_try_statement(ctx, $2, NULL, $3); }
 480         | kTRY Block Catch Finally
 481                                 { $$ = new_try_statement(ctx, $2, $3, $4); }
 482
 483 /* ECMA-262 3rd Edition    12.14 */
 484 Catch
 485         : kCATCH left_bracket tIdentifier right_bracket Block
 486                                 { $$ = new_catch_block(ctx, $3, $5); }
 487
 488 /* ECMA-262 3rd Edition    12.14 */
 489 Finally
 490         : kFINALLY Block        { $$ = $2; }
 491
 492 /* ECMA-262 3rd Edition    11.14 */
 493 Expression_opt
 494         : /* empty */           { $$ = NULL; }
 495         | Expression            { $$ = $1; }
 496
 497 Expression_err
 498         : Expression            { $$ = $1; }
 499         | error                 { set_error(ctx, JS_E_SYNTAX); YYABORT; }
 500
 501 /* ECMA-262 3rd Edition    11.14 */
 502 Expression
 503         : AssignmentExpression  { $$ = $1; }
 504         | Expression ',' AssignmentExpression
 505                                 { $$ = new_binary_expression(ctx, EXPR_COMMA, $1, $3); }
 506
 507 /* ECMA-262 3rd Edition    11.14 */
 508 ExpressionNoIn_opt
 509         : /* empty */           { $$ = NULL; }
 510         | ExpressionNoIn        { $$ = $1; }
 511
 512 /* ECMA-262 3rd Edition    11.14 */
 513 ExpressionNoIn
 514         : AssignmentExpressionNoIn
 515                                 { $$ = $1; }
 516         | ExpressionNoIn ',' AssignmentExpressionNoIn
 517                                 { $$ = new_binary_expression(ctx, EXPR_COMMA, $1, $3); }
 518
 519 AssignOper
 520         : tAssignOper           { $$ = $1; }
 521         | kDIVEQ                { $$ = EXPR_ASSIGNDIV; }
 522
 523 /* ECMA-262 3rd Edition    11.13 */
 524 AssignmentExpression
 525         : ConditionalExpression { $$ = $1; }
 526         | LeftHandSideExpression '=' AssignmentExpression
 527                                 { $$ = new_binary_expression(ctx, EXPR_ASSIGN, $1, $3); }
 528         | LeftHandSideExpression AssignOper AssignmentExpression
 529                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 530
 531 /* ECMA-262 3rd Edition    11.13 */
 532 AssignmentExpressionNoIn
 533         : ConditionalExpressionNoIn
 534                                 { $$ = $1; }
 535         | LeftHandSideExpression '=' AssignmentExpressionNoIn
 536                                 { $$ = new_binary_expression(ctx, EXPR_ASSIGN, $1, $3); }
 537         | LeftHandSideExpression AssignOper AssignmentExpressionNoIn
 538                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 539
 540 /* ECMA-262 3rd Edition    11.12 */
 541 ConditionalExpression
 542         : LogicalORExpression   { $$ = $1; }
 543         | LogicalORExpression '?' AssignmentExpression ':' AssignmentExpression
 544                                 { $$ = new_conditional_expression(ctx, $1, $3, $5); }
 545
 546 /* ECMA-262 3rd Edition    11.12 */
 547 ConditionalExpressionNoIn
 548         : LogicalORExpressionNoIn
 549                                 { $$ = $1; }
 550         | LogicalORExpressionNoIn '?' AssignmentExpressionNoIn ':' AssignmentExpressionNoIn
 551                                 { $$ = new_conditional_expression(ctx, $1, $3, $5); }
 552
 553 /* ECMA-262 3rd Edition    11.11 */
 554 LogicalORExpression
 555         : LogicalANDExpression  { $$ = $1; }
 556         | LogicalORExpression tOROR LogicalANDExpression
 557                                 { $$ = new_binary_expression(ctx, EXPR_OR, $1, $3); }
 558
 559 /* ECMA-262 3rd Edition    11.11 */
 560 LogicalORExpressionNoIn
 561         : LogicalANDExpressionNoIn
 562                                 { $$ = $1; }
 563         | LogicalORExpressionNoIn tOROR LogicalANDExpressionNoIn
 564                                 { $$ = new_binary_expression(ctx, EXPR_OR, $1, $3); }
 565
 566 /* ECMA-262 3rd Edition    11.11 */
 567 LogicalANDExpression
 568         : BitwiseORExpression   { $$ = $1; }
 569         | LogicalANDExpression tANDAND BitwiseORExpression
 570                                 { $$ = new_binary_expression(ctx, EXPR_AND, $1, $3); }
 571
 572 /* ECMA-262 3rd Edition    11.11 */
 573 LogicalANDExpressionNoIn
 574         : BitwiseORExpressionNoIn
 575                                 { $$ = $1; }
 576         | LogicalANDExpressionNoIn tANDAND BitwiseORExpressionNoIn
 577                                 { $$ = new_binary_expression(ctx, EXPR_AND, $1, $3); }
 578
 579 /* ECMA-262 3rd Edition    11.10 */
 580 BitwiseORExpression
 581         : BitwiseXORExpression   { $$ = $1; }
 582         | BitwiseORExpression '|' BitwiseXORExpression
 583                                 { $$ = new_binary_expression(ctx, EXPR_BOR, $1, $3); }
 584
 585 /* ECMA-262 3rd Edition    11.10 */
 586 BitwiseORExpressionNoIn
 587         : BitwiseXORExpressionNoIn
 588                                 { $$ = $1; }
 589         | BitwiseORExpressionNoIn '|' BitwiseXORExpressionNoIn
 590                                 { $$ = new_binary_expression(ctx, EXPR_BOR, $1, $3); }
 591
 592 /* ECMA-262 3rd Edition    11.10 */
 593 BitwiseXORExpression
 594         : BitwiseANDExpression  { $$ = $1; }
 595         | BitwiseXORExpression '^' BitwiseANDExpression
 596                                 { $$ = new_binary_expression(ctx, EXPR_BXOR, $1, $3); }
 597
 598 /* ECMA-262 3rd Edition    11.10 */
 599 BitwiseXORExpressionNoIn
 600         : BitwiseANDExpressionNoIn
 601                                 { $$ = $1; }
 602         | BitwiseXORExpressionNoIn '^' BitwiseANDExpressionNoIn
 603                                 { $$ = new_binary_expression(ctx, EXPR_BXOR, $1, $3); }
 604
 605 /* ECMA-262 3rd Edition    11.10 */
 606 BitwiseANDExpression
 607         : EqualityExpression    { $$ = $1; }
 608         | BitwiseANDExpression '&' EqualityExpression
 609                                 { $$ = new_binary_expression(ctx, EXPR_BAND, $1, $3); }
 610
 611 /* ECMA-262 3rd Edition    11.10 */
 612 BitwiseANDExpressionNoIn
 613         : EqualityExpressionNoIn
 614                                 { $$ = $1; }
 615         | BitwiseANDExpressionNoIn '&' EqualityExpressionNoIn
 616                                 { $$ = new_binary_expression(ctx, EXPR_BAND, $1, $3); }
 617
 618 /* ECMA-262 3rd Edition    11.9 */
 619 EqualityExpression
 620         : RelationalExpression  { $$ = $1; }
 621         | EqualityExpression tEqOper RelationalExpression
 622                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 623
 624 /* ECMA-262 3rd Edition    11.9 */
 625 EqualityExpressionNoIn
 626         : RelationalExpressionNoIn  { $$ = $1; }
 627         | EqualityExpressionNoIn tEqOper RelationalExpressionNoIn
 628                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 629
 630 /* ECMA-262 3rd Edition    11.8 */
 631 RelationalExpression
 632         : ShiftExpression       { $$ = $1; }
 633         | RelationalExpression tRelOper ShiftExpression
 634                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 635         | RelationalExpression kINSTANCEOF ShiftExpression
 636                                 { $$ = new_binary_expression(ctx, EXPR_INSTANCEOF, $1, $3); }
 637         | RelationalExpression kIN ShiftExpression
 638                                 { $$ = new_binary_expression(ctx, EXPR_IN, $1, $3); }
 639
 640 /* ECMA-262 3rd Edition    11.8 */
 641 RelationalExpressionNoIn
 642         : ShiftExpression       { $$ = $1; }
 643         | RelationalExpressionNoIn tRelOper ShiftExpression
 644                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 645         | RelationalExpressionNoIn kINSTANCEOF ShiftExpression
 646                                 { $$ = new_binary_expression(ctx, EXPR_INSTANCEOF, $1, $3); }
 647
 648 /* ECMA-262 3rd Edition    11.7 */
 649 ShiftExpression
 650         : AdditiveExpression    { $$ = $1; }
 651         | ShiftExpression tShiftOper AdditiveExpression
 652                                 { $$ = new_binary_expression(ctx, $2, $1, $3); }
 653
 654 /* ECMA-262 3rd Edition    11.6 */
 655 AdditiveExpression
 656         : MultiplicativeExpression
 657                                 { $$ = $1; }
 658         | AdditiveExpression '+' MultiplicativeExpression
 659                                 { $$ = new_binary_expression(ctx, EXPR_ADD, $1, $3); }
 660         | AdditiveExpression '-' MultiplicativeExpression
 661                                 { $$ = new_binary_expression(ctx, EXPR_SUB, $1, $3); }
 662
 663 /* ECMA-262 3rd Edition    11.5 */
 664 MultiplicativeExpression
 665         : UnaryExpression       { $$ = $1; }
 666         | MultiplicativeExpression '*' UnaryExpression
 667                                 { $$ = new_binary_expression(ctx, EXPR_MUL, $1, $3); }
 668         | MultiplicativeExpression '/' UnaryExpression
 669                                 { $$ = new_binary_expression(ctx, EXPR_DIV, $1, $3); }
 670         | MultiplicativeExpression '%' UnaryExpression
 671                                 { $$ = new_binary_expression(ctx, EXPR_MOD, $1, $3); }
 672
 673 /* ECMA-262 3rd Edition    11.4 */
 674 UnaryExpression
 675         : PostfixExpression     { $$ = $1; }
 676         | kDELETE UnaryExpression
 677                                 { $$ = new_unary_expression(ctx, EXPR_DELETE, $2); }
 678         | kVOID UnaryExpression { $$ = new_unary_expression(ctx, EXPR_VOID, $2); }
 679         | kTYPEOF UnaryExpression
 680                                 { $$ = new_unary_expression(ctx, EXPR_TYPEOF, $2); }
 681         | tINC UnaryExpression  { $$ = new_unary_expression(ctx, EXPR_PREINC, $2); }
 682         | tDEC UnaryExpression  { $$ = new_unary_expression(ctx, EXPR_PREDEC, $2); }
 683         | '+' UnaryExpression   { $$ = new_unary_expression(ctx, EXPR_PLUS, $2); }
 684         | '-' UnaryExpression   { $$ = new_unary_expression(ctx, EXPR_MINUS, $2); }
 685         | '~' UnaryExpression   { $$ = new_unary_expression(ctx, EXPR_BITNEG, $2); }
 686         | '!' UnaryExpression   { $$ = new_unary_expression(ctx, EXPR_LOGNEG, $2); }
 687
 688 /* ECMA-262 3rd Edition    11.2 */
 689 PostfixExpression
 690         : LeftHandSideExpression
 691                                 { $$ = $1; }
 692         | LeftHandSideExpression /* NONL */ tINC
 693                                 { $$ = new_unary_expression(ctx, EXPR_POSTINC, $1); }
 694         | LeftHandSideExpression /* NONL */ tDEC
 695                                 { $$ = new_unary_expression(ctx, EXPR_POSTDEC, $1); }
 696
 697
 698 /* ECMA-262 3rd Edition    11.2 */
 699 LeftHandSideExpression
 700         : NewExpression         { $$ = $1; }
 701         | CallExpression        { $$ = $1; }
 702
 703 /* ECMA-262 3rd Edition    11.2 */
 704 NewExpression
 705         : MemberExpression      { $$ = $1; }
 706         | kNEW NewExpression    { $$ = new_new_expression(ctx, $2, NULL); }
 707
 708 /* ECMA-262 3rd Edition    11.2 */
 709 MemberExpression
 710         : PrimaryExpression     { $$ = $1; }
 711         | FunctionExpression    { $$ = $1; }
 712         | MemberExpression '[' Expression ']'
 713                                 { $$ = new_array_expression(ctx, $1, $3); }
 714         | MemberExpression '.' tIdentifier
 715                                 { $$ = new_member_expression(ctx, $1, $3); }
 716         | kNEW MemberExpression Arguments
 717                                 { $$ = new_new_expression(ctx, $2, $3); }
 718
 719 /* ECMA-262 3rd Edition    11.2 */
 720 CallExpression
 721         : MemberExpression Arguments
 722                                 { $$ = new_call_expression(ctx, $1, $2); }
 723         | CallExpression Arguments
 724                                 { $$ = new_call_expression(ctx, $1, $2); }
 725         | CallExpression '[' Expression ']'
 726                                 { $$ = new_array_expression(ctx, $1, $3); }
 727         | CallExpression '.' tIdentifier
 728                                 { $$ = new_member_expression(ctx, $1, $3); }
 729
 730 /* ECMA-262 3rd Edition    11.2 */
 731 Arguments
 732         : '(' ')'               { $$ = NULL; }
 733         | '(' ArgumentList ')'  { $$ = $2; }
 734
 735 /* ECMA-262 3rd Edition    11.2 */
 736 ArgumentList
 737         : AssignmentExpression  { $$ = new_argument_list(ctx, $1); }
 738         | ArgumentList ',' AssignmentExpression
 739                                 { $$ = argument_list_add(ctx, $1, $3); }
 740
 741 /* ECMA-262 3rd Edition    11.1 */
 742 PrimaryExpression
 743         : kTHIS                 { $$ = new_this_expression(ctx); }
 744         | tIdentifier           { $$ = new_identifier_expression(ctx, $1); }
 745         | Literal               { $$ = new_literal_expression(ctx, $1); }
 746         | ArrayLiteral          { $$ = $1; }
 747         | ObjectLiteral         { $$ = $1; }
 748         | '(' Expression ')'    { $$ = $2; }
 749
 750 /* ECMA-262 3rd Edition    11.1.4 */
 751 ArrayLiteral
 752         : '[' ']'               { $$ = new_array_literal_expression(ctx, NULL, 0); }
 753         | '[' Elision ']'       { $$ = new_array_literal_expression(ctx, NULL, $2+1); }
 754         | '[' ElementList ']'   { $$ = new_array_literal_expression(ctx, $2, 0); }
 755         | '[' ElementList ',' Elision_opt ']'
 756                                 { $$ = new_array_literal_expression(ctx, $2, $4+1); }
 757
 758 /* ECMA-262 3rd Edition    11.1.4 */
 759 ElementList
 760         : Elision_opt AssignmentExpression
 761                                 { $$ = new_element_list(ctx, $1, $2); }
 762         | ElementList ',' Elision_opt AssignmentExpression
 763                                 { $$ = element_list_add(ctx, $1, $3, $4); }
 764
 765 /* ECMA-262 3rd Edition    11.1.4 */
 766 Elision
 767         : ','                   { $$ = 1; }
 768         | Elision ','           { $$ = $1 + 1; }
 769
 770 /* ECMA-262 3rd Edition    11.1.4 */
 771 Elision_opt
 772         : /* empty */           { $$ = 0; }
 773         | Elision               { $$ = $1; }
 774
 775 /* ECMA-262 3rd Edition    11.1.5 */
 776 ObjectLiteral
 777         : '{' '}'               { $$ = new_prop_and_value_expression(ctx, NULL); }
 778         | '{' PropertyNameAndValueList '}'
 779                                 { $$ = new_prop_and_value_expression(ctx, $2); }
 780
 781 /* ECMA-262 3rd Edition    11.1.5 */
 782 PropertyNameAndValueList
 783         : PropertyName ':' AssignmentExpression
 784                                 { $$ = new_property_list(ctx, $1, $3); }
 785         | PropertyNameAndValueList ',' PropertyName ':' AssignmentExpression
 786                                 { $$ = property_list_add(ctx, $1, $3, $5); }
 787
 788 /* ECMA-262 3rd Edition    11.1.5 */
 789 PropertyName
 790         : tIdentifier           { $$ = new_string_literal(ctx, $1); }
 791         | tStringLiteral        { $$ = new_string_literal(ctx, $1); }
 792         | tNumericLiteral       { $$ = $1; }
 793
 794 /* ECMA-262 3rd Edition    7.6 */
 795 Identifier_opt
 796         : /* empty*/            { $$ = NULL; }
 797         | tIdentifier           { $$ = $1; }
 798
 799 /* ECMA-262 3rd Edition    7.8 */
 800 Literal
 801         : kNULL                 { $$ = new_null_literal(ctx); }
 802         | BooleanLiteral        { $$ = $1; }
 803         | tNumericLiteral       { $$ = $1; }
 804         | tStringLiteral        { $$ = new_string_literal(ctx, $1); }
 805         | '/'                   { $$ = parse_regexp(ctx);
 806                                   if(!$$) YYABORT; }
 807         | kDIVEQ                { $$ = parse_regexp(ctx);
 808                                   if(!$$) YYABORT; }
 809
 810 /* ECMA-262 3rd Edition    7.8.2 */
 811 BooleanLiteral
 812         : kTRUE                 { $$ = new_boolean_literal(ctx, VARIANT_TRUE); }
 813         | kFALSE                { $$ = new_boolean_literal(ctx, VARIANT_FALSE); }
 814         | tBooleanLiteral       { $$ = $1; }
 815
 816 semicolon_opt
 817         : ';'
 818         | error                 { if(!allow_auto_semicolon(ctx)) {YYABORT;} }
 819
 820 left_bracket
 821         : '('
 822         | error                 { set_error(ctx, JS_E_MISSING_LBRACKET); YYABORT; }
 823
 824 right_bracket
 825         : ')'
 826         | error                 { set_error(ctx, JS_E_MISSING_RBRACKET); YYABORT; }
 827
 828 semicolon
 829         : ';'
 830         | error                 { set_error(ctx, JS_E_MISSING_SEMICOLON); YYABORT; }
 831
 832 %%
 833
 834 static BOOL allow_auto_semicolon(parser_ctx_t *ctx)
 835 {
 836     return ctx->nl || ctx->ptr == ctx->end || *(ctx->ptr-1) == '}';
 837 }
 838
 839 static literal_t *new_string_literal(parser_ctx_t *ctx, const WCHAR *str)
 840 {
 841     literal_t *ret = parser_alloc(ctx, sizeof(literal_t));
 842
 843     ret->type = LT_STRING;
 844     ret->u.wstr = str;
 845
 846     return ret;
 847 }
 848
 849 static literal_t *new_null_literal(parser_ctx_t *ctx)
 850 {
 851     literal_t *ret = parser_alloc(ctx, sizeof(literal_t));
 852
 853     ret->type = LT_NULL;
 854
 855     return ret;
 856 }
 857
 858 static prop_val_t *new_prop_val(parser_ctx_t *ctx, literal_t *name, expression_t *value)
 859 {
 860     prop_val_t *ret = parser_alloc(ctx, sizeof(prop_val_t));
 861
 862     ret->name = name;
 863     ret->value = value;
 864     ret->next = NULL;
 865
 866     return ret;
 867 }
 868
 869 static property_list_t *new_property_list(parser_ctx_t *ctx, literal_t *name, expression_t *value)
 870 {
 871     property_list_t *ret = parser_alloc_tmp(ctx, sizeof(property_list_t));
 872
 873     ret->head = ret->tail = new_prop_val(ctx, name, value);
 874
 875     return ret;
 876 }
 877
 878 static property_list_t *property_list_add(parser_ctx_t *ctx, property_list_t *list, literal_t *name, expression_t *value)
 879 {
 880     list->tail = list->tail->next = new_prop_val(ctx, name, value);
 881
 882     return list;
 883 }
 884
 885 static array_element_t *new_array_element(parser_ctx_t *ctx, int elision, expression_t *expr)
 886 {
 887     array_element_t *ret = parser_alloc(ctx, sizeof(array_element_t));
 888
 889     ret->elision = elision;
 890     ret->expr = expr;
 891     ret->next = NULL;
 892
 893     return ret;
 894 }
 895
 896 static element_list_t *new_element_list(parser_ctx_t *ctx, int elision, expression_t *expr)
 897 {
 898     element_list_t *ret = parser_alloc_tmp(ctx, sizeof(element_list_t));
 899
 900     ret->head = ret->tail = new_array_element(ctx, elision, expr);
 901
 902     return ret;
 903 }
 904
 905 static element_list_t *element_list_add(parser_ctx_t *ctx, element_list_t *list, int elision, expression_t *expr)
 906 {
 907     list->tail = list->tail->next = new_array_element(ctx, elision, expr);
 908
 909     return list;
 910 }
 911
 912 static argument_t *new_argument(parser_ctx_t *ctx, expression_t *expr)
 913 {
 914     argument_t *ret = parser_alloc(ctx, sizeof(argument_t));
 915
 916     ret->expr = expr;
 917     ret->next = NULL;
 918
 919     return ret;
 920 }
 921
 922 static argument_list_t *new_argument_list(parser_ctx_t *ctx, expression_t *expr)
 923 {
 924     argument_list_t *ret = parser_alloc_tmp(ctx, sizeof(argument_list_t));
 925
 926     ret->head = ret->tail = new_argument(ctx, expr);
 927
 928     return ret;
 929 }
 930
 931 static argument_list_t *argument_list_add(parser_ctx_t *ctx, argument_list_t *list, expression_t *expr)
 932 {
 933     list->tail = list->tail->next = new_argument(ctx, expr);
 934
 935     return list;
 936 }
 937
 938 static catch_block_t *new_catch_block(parser_ctx_t *ctx, const WCHAR *identifier, statement_t *statement)
 939 {
 940     catch_block_t *ret = parser_alloc(ctx, sizeof(catch_block_t));
 941
 942     ret->identifier = identifier;
 943     ret->statement = statement;
 944
 945     return ret;
 946 }
 947
 948 static case_clausule_t *new_case_clausule(parser_ctx_t *ctx, expression_t *expr, statement_list_t *stat_list)
 949 {
 950     case_clausule_t *ret = parser_alloc(ctx, sizeof(case_clausule_t));
 951
 952     ret->expr = expr;
 953     ret->stat = stat_list ? stat_list->head : NULL;
 954     ret->next = NULL;
 955
 956     return ret;
 957 }
 958
 959 static case_list_t *new_case_list(parser_ctx_t *ctx, case_clausule_t *case_clausule)
 960 {
 961     case_list_t *ret = parser_alloc_tmp(ctx, sizeof(case_list_t));
 962
 963     ret->head = ret->tail = case_clausule;
 964
 965     return ret;
 966 }
 967
 968 static case_list_t *case_list_add(parser_ctx_t *ctx, case_list_t *list, case_clausule_t *case_clausule)
 969 {
 970     list->tail = list->tail->next = case_clausule;
 971
 972     return list;
 973 }
 974
 975 static case_clausule_t *new_case_block(parser_ctx_t *ctx, case_list_t *case_list1,
 976         case_clausule_t *default_clausule, case_list_t *case_list2)
 977 {
 978     case_clausule_t *ret = NULL, *iter = NULL, *iter2;
 979     statement_t *stat = NULL;
 980
 981     if(case_list1) {
 982         ret = case_list1->head;
 983         iter = case_list1->tail;
 984     }
 985
 986     if(default_clausule) {
 987         if(ret)
 988             iter = iter->next = default_clausule;
 989         else
 990             ret = iter = default_clausule;
 991     }
 992
 993     if(case_list2) {
 994         if(ret)
 995             iter->next = case_list2->head;
 996         else
 997             ret = case_list2->head;
 998     }
 999
1000     if(!ret)
1001         return NULL;
1002
1003     for(iter = ret; iter; iter = iter->next) {
1004         for(iter2 = iter; iter2 && !iter2->stat; iter2 = iter2->next);
1005         if(!iter2)
1006             break;
1007
1008         while(iter != iter2) {
1009             iter->stat = iter2->stat;
1010             iter = iter->next;
1011         }
1012
1013         if(stat) {
1014             while(stat->next)
1015                 stat = stat->next;
1016             stat->next = iter->stat;
1017         }else {
1018             stat = iter->stat;
1019         }
1020     }
1021
1022     return ret;
1023 }
1024
1025 static statement_t *new_block_statement(parser_ctx_t *ctx, statement_list_t *list)
1026 {
1027     block_statement_t *ret = parser_alloc(ctx, sizeof(block_statement_t));
1028
1029     ret->stat.eval = block_statement_eval;
1030     ret->stat.next = NULL;
1031     ret->stat_list = list ? list->head : NULL;
1032
1033     return &ret->stat;
1034 }
1035
1036 static variable_declaration_t *new_variable_declaration(parser_ctx_t *ctx, const WCHAR *identifier, expression_t *expr)
1037 {
1038     variable_declaration_t *ret = parser_alloc(ctx, sizeof(variable_declaration_t));
1039     var_list_t *var_list = parser_alloc(ctx, sizeof(var_list_t));
1040
1041     ret->identifier = identifier;
1042     ret->expr = expr;
1043     ret->next = NULL;
1044
1045     var_list->identifier = identifier;
1046     var_list->next = NULL;
1047
1048     if(ctx->func_stack->var_tail)
1049         ctx->func_stack->var_tail = ctx->func_stack->var_tail->next = var_list;
1050     else
1051         ctx->func_stack->var_head = ctx->func_stack->var_tail = var_list;
1052
1053     return ret;
1054 }
1055
1056 static variable_list_t *new_variable_list(parser_ctx_t *ctx, variable_declaration_t *decl)
1057 {
1058     variable_list_t *ret = parser_alloc_tmp(ctx, sizeof(variable_list_t));
1059
1060     ret->head = ret->tail = decl;
1061
1062     return ret;
1063 }
1064
1065 static variable_list_t *variable_list_add(parser_ctx_t *ctx, variable_list_t *list, variable_declaration_t *decl)
1066 {
1067     list->tail = list->tail->next = decl;
1068
1069     return list;
1070 }
1071
1072 static statement_t *new_var_statement(parser_ctx_t *ctx, variable_list_t *variable_list)
1073 {
1074     var_statement_t *ret = parser_alloc(ctx, sizeof(var_statement_t));
1075
1076     ret->stat.eval = var_statement_eval;
1077     ret->stat.next = NULL;
1078     ret->variable_list = variable_list->head;
1079
1080     return &ret->stat;
1081 }
1082
1083 static statement_t *new_empty_statement(parser_ctx_t *ctx)
1084 {
1085     statement_t *ret = parser_alloc(ctx, sizeof(statement_t));
1086
1087     ret->eval = empty_statement_eval;
1088     ret->next = NULL;
1089
1090     return ret;
1091 }
1092
1093 static statement_t *new_expression_statement(parser_ctx_t *ctx, expression_t *expr)
1094 {
1095     expression_statement_t *ret = parser_alloc(ctx, sizeof(expression_statement_t));
1096
1097     ret->stat.eval = expression_statement_eval;
1098     ret->stat.next = NULL;
1099     ret->expr = expr;
1100
1101     return &ret->stat;
1102 }
1103
1104 static statement_t *new_if_statement(parser_ctx_t *ctx, expression_t *expr, statement_t *if_stat, statement_t *else_stat)
1105 {
1106     if_statement_t *ret = parser_alloc(ctx, sizeof(if_statement_t));
1107
1108     ret->stat.eval = if_statement_eval;
1109     ret->stat.next = NULL;
1110     ret->expr = expr;
1111     ret->if_stat = if_stat;
1112     ret->else_stat = else_stat;
1113
1114     return &ret->stat;
1115 }
1116
1117 static statement_t *new_while_statement(parser_ctx_t *ctx, BOOL dowhile, expression_t *expr, statement_t *stat)
1118 {
1119     while_statement_t *ret = parser_alloc(ctx, sizeof(while_statement_t));
1120
1121     ret->stat.eval = while_statement_eval;
1122     ret->stat.next = NULL;
1123     ret->do_while = dowhile;
1124     ret->expr = expr;
1125     ret->statement = stat;
1126
1127     return &ret->stat;
1128 }
1129
1130 static statement_t *new_for_statement(parser_ctx_t *ctx, variable_list_t *variable_list, expression_t *begin_expr,
1131         expression_t *expr, expression_t *end_expr, statement_t *statement)
1132 {
1133     for_statement_t *ret = parser_alloc(ctx, sizeof(for_statement_t));
1134
1135     ret->stat.eval = for_statement_eval;
1136     ret->stat.next = NULL;
1137     ret->variable_list = variable_list ? variable_list->head : NULL;
1138     ret->begin_expr = begin_expr;
1139     ret->expr = expr;
1140     ret->end_expr = end_expr;
1141     ret->statement = statement;
1142
1143     return &ret->stat;
1144 }
1145
1146 static statement_t *new_forin_statement(parser_ctx_t *ctx, variable_declaration_t *variable, expression_t *expr,
1147         expression_t *in_expr, statement_t *statement)
1148 {
1149     forin_statement_t *ret = parser_alloc(ctx, sizeof(forin_statement_t));
1150
1151     ret->stat.eval = forin_statement_eval;
1152     ret->stat.next = NULL;
1153     ret->variable = variable;
1154     ret->expr = expr;
1155     ret->in_expr = in_expr;
1156     ret->statement = statement;
1157
1158     return &ret->stat;
1159 }
1160
1161 static statement_t *new_continue_statement(parser_ctx_t *ctx, const WCHAR *identifier)
1162 {
1163     branch_statement_t *ret = parser_alloc(ctx, sizeof(branch_statement_t));
1164
1165     ret->stat.eval = continue_statement_eval;
1166     ret->stat.next = NULL;
1167     ret->identifier = identifier;
1168
1169     return &ret->stat;
1170 }
1171
1172 static statement_t *new_break_statement(parser_ctx_t *ctx, const WCHAR *identifier)
1173 {
1174     branch_statement_t *ret = parser_alloc(ctx, sizeof(branch_statement_t));
1175
1176     ret->stat.eval = break_statement_eval;
1177     ret->stat.next = NULL;
1178     ret->identifier = identifier;
1179
1180     return &ret->stat;
1181 }
1182
1183 static statement_t *new_return_statement(parser_ctx_t *ctx, expression_t *expr)
1184 {
1185     expression_statement_t *ret = parser_alloc(ctx, sizeof(expression_statement_t));
1186
1187     ret->stat.eval = return_statement_eval;
1188     ret->stat.next = NULL;
1189     ret->expr = expr;
1190
1191     return &ret->stat;
1192 }
1193
1194 static statement_t *new_with_statement(parser_ctx_t *ctx, expression_t *expr, statement_t *statement)
1195 {
1196     with_statement_t *ret = parser_alloc(ctx, sizeof(with_statement_t));
1197
1198     ret->stat.eval = with_statement_eval;
1199     ret->stat.next = NULL;
1200     ret->expr = expr;
1201     ret->statement = statement;
1202
1203     return &ret->stat;
1204 }
1205
1206 static statement_t *new_labelled_statement(parser_ctx_t *ctx, const WCHAR *identifier, statement_t *statement)
1207 {
1208     labelled_statement_t *ret = parser_alloc(ctx, sizeof(labelled_statement_t));
1209
1210     ret->stat.eval = labelled_statement_eval;
1211     ret->stat.next = NULL;
1212     ret->identifier = identifier;
1213     ret->statement = statement;
1214
1215     return &ret->stat;
1216 }
1217
1218 static statement_t *new_switch_statement(parser_ctx_t *ctx, expression_t *expr, case_clausule_t *case_list)
1219 {
1220     switch_statement_t *ret = parser_alloc(ctx, sizeof(switch_statement_t));
1221
1222     ret->stat.eval = switch_statement_eval;
1223     ret->stat.next = NULL;
1224     ret->expr = expr;
1225     ret->case_list = case_list;
1226
1227     return &ret->stat;
1228 }
1229
1230 static statement_t *new_throw_statement(parser_ctx_t *ctx, expression_t *expr)
1231 {
1232     expression_statement_t *ret = parser_alloc(ctx, sizeof(expression_statement_t));
1233
1234     ret->stat.eval = throw_statement_eval;
1235     ret->stat.next = NULL;
1236     ret->expr = expr;
1237
1238     return &ret->stat;
1239 }
1240
1241 static statement_t *new_try_statement(parser_ctx_t *ctx, statement_t *try_statement,
1242        catch_block_t *catch_block, statement_t *finally_statement)
1243 {
1244     try_statement_t *ret = parser_alloc(ctx, sizeof(try_statement_t));
1245
1246     ret->stat.eval = try_statement_eval;
1247     ret->stat.next = NULL;
1248     ret->try_statement = try_statement;
1249     ret->catch_block = catch_block;
1250     ret->finally_statement = finally_statement;
1251
1252     return &ret->stat;
1253 }
1254
1255 static parameter_t *new_parameter(parser_ctx_t *ctx, const WCHAR *identifier)
1256 {
1257     parameter_t *ret = parser_alloc(ctx, sizeof(parameter_t));
1258
1259     ret->identifier = identifier;
1260     ret->next = NULL;
1261
1262     return ret;
1263 }
1264
1265 static parameter_list_t *new_parameter_list(parser_ctx_t *ctx, const WCHAR *identifier)
1266 {
1267     parameter_list_t *ret = parser_alloc_tmp(ctx, sizeof(parameter_list_t));
1268
1269     ret->head = ret->tail = new_parameter(ctx, identifier);
1270
1271     return ret;
1272 }
1273
1274 static parameter_list_t *parameter_list_add(parser_ctx_t *ctx, parameter_list_t *list, const WCHAR *identifier)
1275 {
1276     list->tail = list->tail->next = new_parameter(ctx, identifier);
1277
1278     return list;
1279 }
1280
1281 static expression_t *new_function_expression(parser_ctx_t *ctx, const WCHAR *identifier,
1282        parameter_list_t *parameter_list, source_elements_t *source_elements, const WCHAR *src_str, DWORD src_len)
1283 {
1284     function_expression_t *ret = parser_alloc(ctx, sizeof(function_expression_t));
1285
1286     ret->expr.eval = function_expression_eval;
1287     ret->identifier = identifier;
1288     ret->parameter_list = parameter_list ? parameter_list->head : NULL;
1289     ret->source_elements = source_elements;
1290     ret->src_str = src_str;
1291     ret->src_len = src_len;
1292
1293     if(ret->identifier) {
1294         function_declaration_t *decl = parser_alloc(ctx, sizeof(function_declaration_t));
1295
1296         decl->expr = ret;
1297         decl->next = NULL;
1298
1299         if(ctx->func_stack->func_tail)
1300             ctx->func_stack->func_tail = ctx->func_stack->func_tail->next = decl;
1301         else
1302             ctx->func_stack->func_head = ctx->func_stack->func_tail = decl;
1303     }
1304
1305     return &ret->expr;
1306 }
1307
1308 static const expression_eval_t expression_eval_table[] = {
1309    comma_expression_eval,
1310    logical_or_expression_eval,
1311    logical_and_expression_eval,
1312    binary_or_expression_eval,
1313    binary_xor_expression_eval,
1314    binary_and_expression_eval,
1315    instanceof_expression_eval,
1316    in_expression_eval,
1317    add_expression_eval,
1318    sub_expression_eval,
1319    mul_expression_eval,
1320    div_expression_eval,
1321    mod_expression_eval,
1322    delete_expression_eval,
1323    void_expression_eval,
1324    typeof_expression_eval,
1325    minus_expression_eval,
1326    plus_expression_eval,
1327    post_increment_expression_eval,
1328    post_decrement_expression_eval,
1329    pre_increment_expression_eval,
1330    pre_decrement_expression_eval,
1331    equal_expression_eval,
1332    equal2_expression_eval,
1333    not_equal_expression_eval,
1334    not_equal2_expression_eval,
1335    less_expression_eval,
1336    lesseq_expression_eval,
1337    greater_expression_eval,
1338    greatereq_expression_eval,
1339    binary_negation_expression_eval,
1340    logical_negation_expression_eval,
1341    left_shift_expression_eval,
1342    right_shift_expression_eval,
1343    right2_shift_expression_eval,
1344    assign_expression_eval,
1345    assign_lshift_expression_eval,
1346    assign_rshift_expression_eval,
1347    assign_rrshift_expression_eval,
1348    assign_add_expression_eval,
1349    assign_sub_expression_eval,
1350    assign_mul_expression_eval,
1351    assign_div_expression_eval,
1352    assign_mod_expression_eval,
1353    assign_and_expression_eval,
1354    assign_or_expression_eval,
1355    assign_xor_expression_eval,
1356 };
1357
1358 static expression_t *new_binary_expression(parser_ctx_t *ctx, expression_type_t type,
1359        expression_t *expression1, expression_t *expression2)
1360 {
1361     binary_expression_t *ret = parser_alloc(ctx, sizeof(binary_expression_t));
1362
1363     ret->expr.eval = expression_eval_table[type];
1364     ret->expression1 = expression1;
1365     ret->expression2 = expression2;
1366
1367     return &ret->expr;
1368 }
1369
1370 static expression_t *new_unary_expression(parser_ctx_t *ctx, expression_type_t type, expression_t *expression)
1371 {
1372     unary_expression_t *ret = parser_alloc(ctx, sizeof(unary_expression_t));
1373
1374     ret->expr.eval = expression_eval_table[type];
1375     ret->expression = expression;
1376
1377     return &ret->expr;
1378 }
1379
1380 static expression_t *new_conditional_expression(parser_ctx_t *ctx, expression_t *expression,
1381        expression_t *true_expression, expression_t *false_expression)
1382 {
1383     conditional_expression_t *ret = parser_alloc(ctx, sizeof(conditional_expression_t));
1384
1385     ret->expr.eval = conditional_expression_eval;
1386     ret->expression = expression;
1387     ret->true_expression = true_expression;
1388     ret->false_expression = false_expression;
1389
1390     return &ret->expr;
1391 }
1392
1393 static expression_t *new_array_expression(parser_ctx_t *ctx, expression_t *member_expr, expression_t *expression)
1394 {
1395     array_expression_t *ret = parser_alloc(ctx, sizeof(array_expression_t));
1396
1397     ret->expr.eval = array_expression_eval;
1398     ret->member_expr = member_expr;
1399     ret->expression = expression;
1400
1401     return &ret->expr;
1402 }
1403
1404 static expression_t *new_member_expression(parser_ctx_t *ctx, expression_t *expression, const WCHAR *identifier)
1405 {
1406     member_expression_t *ret = parser_alloc(ctx, sizeof(member_expression_t));
1407
1408     ret->expr.eval = member_expression_eval;
1409     ret->expression = expression;
1410     ret->identifier = identifier;
1411
1412     return &ret->expr;
1413 }
1414
1415 static expression_t *new_new_expression(parser_ctx_t *ctx, expression_t *expression, argument_list_t *argument_list)
1416 {
1417     call_expression_t *ret = parser_alloc(ctx, sizeof(call_expression_t));
1418
1419     ret->expr.eval = new_expression_eval;
1420     ret->expression = expression;
1421     ret->argument_list = argument_list ? argument_list->head : NULL;
1422
1423     return &ret->expr;
1424 }
1425
1426 static expression_t *new_call_expression(parser_ctx_t *ctx, expression_t *expression, argument_list_t *argument_list)
1427 {
1428     call_expression_t *ret = parser_alloc(ctx, sizeof(call_expression_t));
1429
1430     ret->expr.eval = call_expression_eval;
1431     ret->expression = expression;
1432     ret->argument_list = argument_list ? argument_list->head : NULL;
1433
1434     return &ret->expr;
1435 }
1436
1437 static expression_t *new_this_expression(parser_ctx_t *ctx)
1438 {
1439     expression_t *ret = parser_alloc(ctx, sizeof(expression_t));
1440
1441     ret->eval = this_expression_eval;
1442
1443     return ret;
1444 }
1445
1446 static int parser_error(const char *str)
1447 {
1448     return 0;
1449 }
1450
1451 static void set_error(parser_ctx_t *ctx, UINT error)
1452 {
1453     ctx->hres = error;
1454 }
1455
1456 static BOOL explicit_error(parser_ctx_t *ctx, void *obj, WCHAR next)
1457 {
1458     if(obj || *(ctx->ptr-1)==next) return TRUE;
1459
1460     set_error(ctx, JS_E_SYNTAX);
1461     return FALSE;
1462 }
1463
1464
1465 static expression_t *new_identifier_expression(parser_ctx_t *ctx, const WCHAR *identifier)
1466 {
1467     identifier_expression_t *ret = parser_alloc(ctx, sizeof(identifier_expression_t));
1468
1469     ret->expr.eval = identifier_expression_eval;
1470     ret->identifier = identifier;
1471
1472     return &ret->expr;
1473 }
1474
1475 static expression_t *new_array_literal_expression(parser_ctx_t *ctx, element_list_t *element_list, int length)
1476 {
1477     array_literal_expression_t *ret = parser_alloc(ctx, sizeof(array_literal_expression_t));
1478
1479     ret->expr.eval = array_literal_expression_eval;
1480     ret->element_list = element_list ? element_list->head : NULL;
1481     ret->length = length;
1482
1483     return &ret->expr;
1484 }
1485
1486 static expression_t *new_prop_and_value_expression(parser_ctx_t *ctx, property_list_t *property_list)
1487 {
1488     property_value_expression_t *ret = parser_alloc(ctx, sizeof(property_value_expression_t));
1489
1490     ret->expr.eval = property_value_expression_eval;
1491     ret->property_list = property_list ? property_list->head : NULL;
1492
1493     return &ret->expr;
1494 }
1495
1496 static expression_t *new_literal_expression(parser_ctx_t *ctx, literal_t *literal)
1497 {
1498     literal_expression_t *ret = parser_alloc(ctx, sizeof(literal_expression_t));
1499
1500     ret->expr.eval = literal_expression_eval;
1501     ret->literal = literal;
1502
1503     return &ret->expr;
1504 }
1505
1506 static source_elements_t *new_source_elements(parser_ctx_t *ctx)
1507 {
1508     source_elements_t *ret = parser_alloc(ctx, sizeof(source_elements_t));
1509
1510     memset(ret, 0, sizeof(*ret));
1511
1512     return ret;
1513 }
1514
1515 static source_elements_t *source_elements_add_statement(source_elements_t *source_elements, statement_t *statement)
1516 {
1517     if(source_elements->statement_tail)
1518         source_elements->statement_tail = source_elements->statement_tail->next = statement;
1519     else
1520         source_elements->statement = source_elements->statement_tail = statement;
1521
1522     return source_elements;
1523 }
1524
1525 static statement_list_t *new_statement_list(parser_ctx_t *ctx, statement_t *statement)
1526 {
1527     statement_list_t *ret =  parser_alloc_tmp(ctx, sizeof(statement_list_t));
1528
1529     ret->head = ret->tail = statement;
1530
1531     return ret;
1532 }
1533
1534 static statement_list_t *statement_list_add(statement_list_t *list, statement_t *statement)
1535 {
1536     list->tail = list->tail->next = statement;
1537
1538     return list;
1539 }
1540
1541 static void push_func(parser_ctx_t *ctx)
1542 {
1543     func_stack_t *new_func = parser_alloc_tmp(ctx, sizeof(func_stack_t));
1544
1545     new_func->func_head = new_func->func_tail = NULL;
1546     new_func->var_head = new_func->var_tail = NULL;
1547
1548     new_func->next = ctx->func_stack;
1549     ctx->func_stack = new_func;
1550 }
1551
1552 static source_elements_t *function_body_parsed(parser_ctx_t *ctx, source_elements_t *source)
1553 {
1554     source->functions = ctx->func_stack->func_head;
1555     source->variables = ctx->func_stack->var_head;
1556     pop_func(ctx);
1557
1558     return source;
1559 }
1560
1561 static void program_parsed(parser_ctx_t *ctx, source_elements_t *source)
1562 {
1563     source->functions = ctx->func_stack->func_head;
1564     source->variables = ctx->func_stack->var_head;
1565     pop_func(ctx);
1566
1567     ctx->source = source;
1568     if(!ctx->lexer_error)
1569         ctx->hres = S_OK;
1570 }
1571
1572 void parser_release(parser_ctx_t *ctx)
1573 {
1574     if(--ctx->ref)
1575         return;
1576
1577     script_release(ctx->script);
1578     heap_free(ctx->begin);
1579     jsheap_free(&ctx->heap);
1580     heap_free(ctx);
1581 }
1582
1583 HRESULT script_parse(script_ctx_t *ctx, const WCHAR *code, const WCHAR *delimiter,
1584         parser_ctx_t **ret)
1585 {
1586     parser_ctx_t *parser_ctx;
1587     jsheap_t *mark;
1588     HRESULT hres;
1589
1590     const WCHAR html_tagW[] = {'<','/','s','c','r','i','p','t','>',0};
1591
1592     parser_ctx = heap_alloc_zero(sizeof(parser_ctx_t));
1593     if(!parser_ctx)
1594         return E_OUTOFMEMORY;
1595
1596     parser_ctx->ref = 1;
1597     parser_ctx->hres = JS_E_SYNTAX;
1598     parser_ctx->is_html = delimiter && !strcmpiW(delimiter, html_tagW);
1599
1600     parser_ctx->begin = heap_strdupW(code);
1601     if(!parser_ctx->begin) {
1602         heap_free(parser_ctx);
1603         return E_OUTOFMEMORY;
1604     }
1605
1606     parser_ctx->ptr = parser_ctx->begin;
1607     parser_ctx->end = parser_ctx->begin + strlenW(parser_ctx->begin);
1608
1609     script_addref(ctx);
1610     parser_ctx->script = ctx;
1611
1612     mark = jsheap_mark(&ctx->tmp_heap);
1613     jsheap_init(&parser_ctx->heap);
1614
1615     push_func(parser_ctx);
1616
1617     parser_parse(parser_ctx);
1618     jsheap_clear(mark);
1619     if(FAILED(parser_ctx->hres)) {
1620         hres = parser_ctx->hres;
1621         parser_release(parser_ctx);
1622         return hres;
1623     }
1624
1625     *ret = parser_ctx;
1626     return S_OK;
1627 }