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