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 #include "parser.h"
  24
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  28
  29 static int parser_error(parser_ctx_t*,const char*);
  30 static void set_error(parser_ctx_t*,UINT);
  31 static BOOL explicit_error(parser_ctx_t*,void*,WCHAR);
  32 static BOOL allow_auto_semicolon(parser_ctx_t*);
  33 static void program_parsed(parser_ctx_t*,source_elements_t*);
  34
  35 typedef struct _statement_list_t {
  36     statement_t *head;
  37     statement_t *tail;
  38 } statement_list_t;
  39
  40 static literal_t *new_string_literal(parser_ctx_t*,const WCHAR*);
  41 static literal_t *new_null_literal(parser_ctx_t*);
  42
  43 typedef struct _property_list_t {
  44     prop_val_t *head;
  45     prop_val_t *tail;
  46 } property_list_t;
  47
  48 static property_list_t *new_property_list(parser_ctx_t*,literal_t*,expression_t*);
  49 static property_list_t *property_list_add(parser_ctx_t*,property_list_t*,literal_t*,expression_t*);
  50
  51 typedef struct _element_list_t {
  52     array_element_t *head;
  53     array_element_t *tail;
  54 } element_list_t;
  55
  56 static element_list_t *new_element_list(parser_ctx_t*,int,expression_t*);
  57 static element_list_t *element_list_add(parser_ctx_t*,element_list_t*,int,expression_t*);
  58
  59 typedef struct _argument_list_t {
  60     argument_t *head;
  61     argument_t *tail;
  62 } argument_list_t;
  63
  64 static argument_list_t *new_argument_list(parser_ctx_t*,expression_t*);
  65 static argument_list_t *argument_list_add(parser_ctx_t*,argument_list_t*,expression_t*);
  66
  67 typedef struct _case_list_t {
  68     case_clausule_t *head;
  69     case_clausule_t *tail;
  70 } case_list_t;
  71
  72 static catch_block_t *new_catch_block(parser_ctx_t*,const WCHAR*,statement_t*);
  73 static case_clausule_t *new_case_clausule(parser_ctx_t*,expression_t*,statement_list_t*);
  74 static case_list_t *new_case_list(parser_ctx_t*,case_clausule_t*);
  75 static case_list_t *case_list_add(parser_ctx_t*,case_list_t*,case_clausule_t*);
  76 static case_clausule_t *new_case_block(parser_ctx_t*,case_list_t*,case_clausule_t*,case_list_t*);
  77
  78 typedef struct _variable_list_t {
  79     variable_declaration_t *head;
  80     variable_declaration_t *tail;
  81 } variable_list_t;
  82
  83 static variable_declaration_t *new_variable_declaration(parser_ctx_t*,const WCHAR*,expression_t*);
  84 static variable_list_t *new_variable_list(parser_ctx_t*,variable_declaration_t*);
  85 static variable_list_t *variable_list_add(parser_ctx_t*,variable_list_t*,variable_declaration_t*);
  86
  87 static void *new_statement(parser_ctx_t*,statement_type_t,size_t);
  88 static statement_t *new_block_statement(parser_ctx_t*,statement_list_t*);
  89 static statement_t *new_var_statement(parser_ctx_t*,variable_list_t*);
  90 static statement_t *new_expression_statement(parser_ctx_t*,expression_t*);
  91 static statement_t *new_if_statement(parser_ctx_t*,expression_t*,statement_t*,statement_t*);
  92 static statement_t *new_while_statement(parser_ctx_t*,BOOL,expression_t*,statement_t*);
  93 static statement_t *new_for_statement(parser_ctx_t*,variable_list_t*,expression_t*,expression_t*,
  94         expression_t*,statement_t*);
  95 static statement_t *new_forin_statement(parser_ctx_t*,variable_declaration_t*,expression_t*,expression_t*,statement_t*);
  96 static statement_t *new_continue_statement(parser_ctx_t*,const WCHAR*);
  97 static statement_t *new_break_statement(parser_ctx_t*,const WCHAR*);
  98 static statement_t *new_return_statement(parser_ctx_t*,expression_t*);
  99 static statement_t *new_with_statement(parser_ctx_t*,expression_t*,statement_t*);
 100 static statement_t *new_labelled_statement(parser_ctx_t*,const WCHAR*,statement_t*);
 101 static statement_t *new_switch_statement(parser_ctx_t*,expression_t*,case_clausule_t*);
 102 static statement_t *new_throw_statement(parser_ctx_t*,expression_t*);
 103 static statement_t *new_try_statement(parser_ctx_t*,statement_t*,catch_block_t*,statement_t*);
 104
 105 struct statement_list_t {
 106    statement_t *head;
 107    statement_t *tail;
 108 };
 109
 110 static statement_list_t *new_statement_list(parser_ctx_t*,statement_t*);
 111 static statement_list_t *statement_list_add(statement_list_t*,statement_t*);
 112
 113 typedef struct _parameter_list_t {
 114     parameter_t *head;
 115     parameter_t *tail;
 116 } parameter_list_t;
 117
 118 static parameter_list_t *new_parameter_list(parser_ctx_t*,const WCHAR*);
 119 static parameter_list_t *parameter_list_add(parser_ctx_t*,parameter_list_t*,const WCHAR*);
 120
 121 static void *new_expression(parser_ctx_t *ctx,expression_type_t,size_t);
 122 static expression_t *new_function_expression(parser_ctx_t*,const WCHAR*,parameter_list_t*,
 123         source_elements_t*,const WCHAR*,const WCHAR*,DWORD);
 124 static expression_t *new_binary_expression(parser_ctx_t*,expression_type_t,expression_t*,expression_t*);
 125 static expression_t *new_unary_expression(parser_ctx_t*,expression_type_t,expression_t*);
 126 static expression_t *new_conditional_expression(parser_ctx_t*,expression_t*,expression_t*,expression_t*);
 127 static expression_t *new_member_expression(parser_ctx_t*,expression_t*,const WCHAR*);
 128 static expression_t *new_new_expression(parser_ctx_t*,expression_t*,argument_list_t*);
 129 static expression_t *new_call_expression(parser_ctx_t*,expression_t*,argument_list_t*);
 130 static expression_t *new_identifier_expression(parser_ctx_t*,const WCHAR*);
 131 static expression_t *new_literal_expression(parser_ctx_t*,literal_t*);
 132 static expression_t *new_array_literal_expression(parser_ctx_t*,element_list_t*,int);
 133 static expression_t *new_prop_and_value_expression(parser_ctx_t*,property_list_t*);
 134
 135 static source_elements_t *new_source_elements(parser_ctx_t*);
 136 static source_elements_t *source_elements_add_statement(source_elements_t*,statement_t*);
 137
 138 %}
 139
 140 %lex-param { parser_ctx_t *ctx }
 141 %parse-param { parser_ctx_t *ctx }
 142 %pure-parser
 143 %start Program
 144
 145 %union {
 146     int                     ival;
 147     const WCHAR             *srcptr;
 148     LPCWSTR                 wstr;
 149     literal_t               *literal;
 150     struct _argument_list_t *argument_list;
 151     case_clausule_t         *case_clausule;
 152     struct _case_list_t     *case_list;
 153     catch_block_t           *catch_block;
 154     struct _element_list_t  *element_list;
 155     expression_t            *expr;
 156     const WCHAR            *identifier;
 157     struct _parameter_list_t *parameter_list;
 158     struct _property_list_t *property_list;
 159     source_elements_t       *source_elements;
 160     statement_t             *statement;
 161     struct _statement_list_t *statement_list;
 162     struct _variable_list_t *variable_list;
 163     variable_declaration_t  *variable_declaration;
 164 }
 165
 166 /* keywords */
 167 %token kBREAK kCASE kCATCH kCONTINUE kDEFAULT kDELETE kDO kELSE kIF kFINALLY kFOR kIN
 168 %token kINSTANCEOF kNEW kNULL kRETURN kSWITCH kTHIS kTHROW kTRUE kFALSE kTRY kTYPEOF kVAR kVOID kWHILE kWITH
 169 %token tANDAND tOROR tINC tDEC tHTMLCOMMENT kDIVEQ kDCOL
 170
 171 %token <srcptr> kFUNCTION '}'
 172
 173 /* tokens */
 174 %token <identifier> tIdentifier
 175 %token <ival> tAssignOper tEqOper tShiftOper tRelOper
 176 %token <literal> tNumericLiteral tBooleanLiteral
 177 %token <wstr> tStringLiteral
 178 %token tEOF
 179
 180 %type <source_elements> SourceElements
 181 %type <source_elements> FunctionBody
 182 %type <statement> Statement
 183 %type <statement> Block
 184 %type <statement> VariableStatement
 185 %type <statement> EmptyStatement
 186 %type <statement> ExpressionStatement
 187 %type <statement> IfStatement
 188 %type <statement> IterationStatement
 189 %type <statement> ContinueStatement
 190 %type <statement> BreakStatement
 191 %type <statement> ReturnStatement
 192 %type <statement> WithStatement
 193 %type <statement> LabelledStatement
 194 %type <statement> SwitchStatement
 195 %type <statement> ThrowStatement
 196 %type <statement> TryStatement
 197 %type <statement> Finally
 198 %type <statement_list> StatementList StatementList_opt
 199 %type <parameter_list> FormalParameterList FormalParameterList_opt
 200 %type <expr> Expression Expression_opt Expression_err
 201 %type <expr> ExpressionNoIn ExpressionNoIn_opt
 202 %type <expr> FunctionExpression
 203 %type <expr> AssignmentExpression AssignmentExpressionNoIn
 204 %type <expr> ConditionalExpression ConditionalExpressionNoIn
 205 %type <expr> LeftHandSideExpression
 206 %type <expr> LogicalORExpression LogicalORExpressionNoIn
 207 %type <expr> LogicalANDExpression LogicalANDExpressionNoIn
 208 %type <expr> BitwiseORExpression BitwiseORExpressionNoIn
 209 %type <expr> BitwiseXORExpression BitwiseXORExpressionNoIn
 210 %type <expr> BitwiseANDExpression BitwiseANDExpressionNoIn
 211 %type <expr> EqualityExpression EqualityExpressionNoIn
 212 %type <expr> RelationalExpression RelationalExpressionNoIn
 213 %type <expr> ShiftExpression
 214 %type <expr> AdditiveExpression
 215 %type <expr> MultiplicativeExpression
 216 %type <expr> Initialiser_opt Initialiser
 217 %type <expr> InitialiserNoIn_opt InitialiserNoIn
 218 %type <expr> UnaryExpression
 219 %type <expr> PostfixExpression
 220 %type <expr> NewExpression
 221 %type <expr> CallExpression
 222 %type <expr> MemberExpression
 223 %type <expr> PrimaryExpression
 224 %type <identifier> Identifier_opt
 225 %type <variable_list> VariableDeclarationList
 226 %type <variable_list> VariableDeclarationListNoIn
 227 %type <variable_declaration> VariableDeclaration
 228 %type <variable_declaration> VariableDeclarationNoIn
 229 %type <case_list> CaseClausules CaseClausules_opt
 230 %type <case_clausule> CaseClausule DefaultClausule CaseBlock
 231 %type <catch_block> Catch
 232 %type <argument_list> Arguments
 233 %type <argument_list> ArgumentList
 234 %type <literal> Literal
 235 %type <expr> ArrayLiteral
 236 %type <expr> ObjectLiteral
 237 %type <ival> Elision Elision_opt
 238 %type <element_list> ElementList
 239 %type <property_list> PropertyNameAndValueList
 240 %type <literal> PropertyName
 241 %type <literal> BooleanLiteral
 242 %type <srcptr> KFunction
 243 %type <ival> AssignOper
 244
 245 %nonassoc LOWER_THAN_ELSE
 246 %nonassoc kELSE
 247
 248 %%
 249
 250 /* ECMA-262 3rd Edition    14 */
 251 Program
 252        : SourceElements HtmlComment tEOF
 253                                 { program_parsed(ctx, $1); }
 254
 255 HtmlComment
 256         : tHTMLCOMMENT          {}
 257         | /* empty */           {}
 258
 259 /* ECMA-262 3rd Edition    14 */
 260 SourceElements
 261         : /* empty */           { $$ = new_source_elements(ctx); }
 262         | SourceElements Statement
 263                                 { $$ = source_elements_add_statement($1, $2); }
 264
 265 /* ECMA-262 3rd Edition    13 */
 266 FunctionExpression
 267         : KFunction left_bracket FormalParameterList_opt right_bracket '{' FunctionBody '}'
 268                                 { $$ = new_function_expression(ctx, NULL, $3, $6, NULL, $1, $7-$1+1); }
 269         | KFunction tIdentifier left_bracket FormalParameterList_opt right_bracket '{' FunctionBody '}'
 270                                 { $$ = new_function_expression(ctx, $2, $4, $7, NULL, $1, $8-$1+1); }
 271         | KFunction tIdentifier kDCOL tIdentifier left_bracket FormalParameterList_opt right_bracket '{' FunctionBody '}'
 272                                 { $$ = new_function_expression(ctx, $4, $6, $9, $2, $1, $10-$1+1); }
 273
 274 KFunction
 275         : kFUNCTION             { $$ = $1; }
 276
 277 /* ECMA-262 3rd Edition    13 */
 278 FunctionBody
 279         : SourceElements        { $$ = $1; }
 280
 281 /* ECMA-262 3rd Edition    13 */
 282 FormalParameterList
 283         : tIdentifier           { $$ = 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    { $$ = new_expression_statement(ctx, $1); }
 298         | ExpressionStatement   { $$ = $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_statement(ctx, STAT_EMPTY, 0); }
 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_binary_expression(ctx, EXPR_ARRAY, $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                                 { $$ = new_binary_expression(ctx, EXPR_ARRAY, $1, $3); }
 727         | CallExpression '.' tIdentifier
 728                                 { $$ = 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                 { $$ = new_expression(ctx, EXPR_THIS, 0); }
 744         | tIdentifier           { $$ = 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 void *new_statement(parser_ctx_t *ctx, statement_type_t type, size_t size)
 840 {
 841     statement_t *stat;
 842
 843     stat = parser_alloc(ctx, size ? size : sizeof(*stat));
 844     if(!stat)
 845         return NULL;
 846
 847     stat->type = type;
 848     stat->next = NULL;
 849
 850     return stat;
 851 }
 852
 853 static literal_t *new_string_literal(parser_ctx_t *ctx, const WCHAR *str)
 854 {
 855     literal_t *ret = parser_alloc(ctx, sizeof(literal_t));
 856
 857     ret->type = LT_STRING;
 858     ret->u.wstr = str;
 859
 860     return ret;
 861 }
 862
 863 static literal_t *new_null_literal(parser_ctx_t *ctx)
 864 {
 865     literal_t *ret = parser_alloc(ctx, sizeof(literal_t));
 866
 867     ret->type = LT_NULL;
 868
 869     return ret;
 870 }
 871
 872 static prop_val_t *new_prop_val(parser_ctx_t *ctx, literal_t *name, expression_t *value)
 873 {
 874     prop_val_t *ret = parser_alloc(ctx, sizeof(prop_val_t));
 875
 876     ret->name = name;
 877     ret->value = value;
 878     ret->next = NULL;
 879
 880     return ret;
 881 }
 882
 883 static property_list_t *new_property_list(parser_ctx_t *ctx, literal_t *name, expression_t *value)
 884 {
 885     property_list_t *ret = parser_alloc_tmp(ctx, sizeof(property_list_t));
 886
 887     ret->head = ret->tail = new_prop_val(ctx, name, value);
 888
 889     return ret;
 890 }
 891
 892 static property_list_t *property_list_add(parser_ctx_t *ctx, property_list_t *list, literal_t *name, expression_t *value)
 893 {
 894     list->tail = list->tail->next = new_prop_val(ctx, name, value);
 895
 896     return list;
 897 }
 898
 899 static array_element_t *new_array_element(parser_ctx_t *ctx, int elision, expression_t *expr)
 900 {
 901     array_element_t *ret = parser_alloc(ctx, sizeof(array_element_t));
 902
 903     ret->elision = elision;
 904     ret->expr = expr;
 905     ret->next = NULL;
 906
 907     return ret;
 908 }
 909
 910 static element_list_t *new_element_list(parser_ctx_t *ctx, int elision, expression_t *expr)
 911 {
 912     element_list_t *ret = parser_alloc_tmp(ctx, sizeof(element_list_t));
 913
 914     ret->head = ret->tail = new_array_element(ctx, elision, expr);
 915
 916     return ret;
 917 }
 918
 919 static element_list_t *element_list_add(parser_ctx_t *ctx, element_list_t *list, int elision, expression_t *expr)
 920 {
 921     list->tail = list->tail->next = new_array_element(ctx, elision, expr);
 922
 923     return list;
 924 }
 925
 926 static argument_t *new_argument(parser_ctx_t *ctx, expression_t *expr)
 927 {
 928     argument_t *ret = parser_alloc(ctx, sizeof(argument_t));
 929
 930     ret->expr = expr;
 931     ret->next = NULL;
 932
 933     return ret;
 934 }
 935
 936 static argument_list_t *new_argument_list(parser_ctx_t *ctx, expression_t *expr)
 937 {
 938     argument_list_t *ret = parser_alloc_tmp(ctx, sizeof(argument_list_t));
 939
 940     ret->head = ret->tail = new_argument(ctx, expr);
 941
 942     return ret;
 943 }
 944
 945 static argument_list_t *argument_list_add(parser_ctx_t *ctx, argument_list_t *list, expression_t *expr)
 946 {
 947     list->tail = list->tail->next = new_argument(ctx, expr);
 948
 949     return list;
 950 }
 951
 952 static catch_block_t *new_catch_block(parser_ctx_t *ctx, const WCHAR *identifier, statement_t *statement)
 953 {
 954     catch_block_t *ret = parser_alloc(ctx, sizeof(catch_block_t));
 955
 956     ret->identifier = identifier;
 957     ret->statement = statement;
 958
 959     return ret;
 960 }
 961
 962 static case_clausule_t *new_case_clausule(parser_ctx_t *ctx, expression_t *expr, statement_list_t *stat_list)
 963 {
 964     case_clausule_t *ret = parser_alloc(ctx, sizeof(case_clausule_t));
 965
 966     ret->expr = expr;
 967     ret->stat = stat_list ? stat_list->head : NULL;
 968     ret->next = NULL;
 969
 970     return ret;
 971 }
 972
 973 static case_list_t *new_case_list(parser_ctx_t *ctx, case_clausule_t *case_clausule)
 974 {
 975     case_list_t *ret = parser_alloc_tmp(ctx, sizeof(case_list_t));
 976
 977     ret->head = ret->tail = case_clausule;
 978
 979     return ret;
 980 }
 981
 982 static case_list_t *case_list_add(parser_ctx_t *ctx, case_list_t *list, case_clausule_t *case_clausule)
 983 {
 984     list->tail = list->tail->next = case_clausule;
 985
 986     return list;
 987 }
 988
 989 static case_clausule_t *new_case_block(parser_ctx_t *ctx, case_list_t *case_list1,
 990         case_clausule_t *default_clausule, case_list_t *case_list2)
 991 {
 992     case_clausule_t *ret = NULL, *iter = NULL, *iter2;
 993     statement_t *stat = NULL;
 994
 995     if(case_list1) {
 996         ret = case_list1->head;
 997         iter = case_list1->tail;
 998     }
 999
1000     if(default_clausule) {
1001         if(ret)
1002             iter = iter->next = default_clausule;
1003         else
1004             ret = iter = default_clausule;
1005     }
1006
1007     if(case_list2) {
1008         if(ret)
1009             iter->next = case_list2->head;
1010         else
1011             ret = case_list2->head;
1012     }
1013
1014     if(!ret)
1015         return NULL;
1016
1017     for(iter = ret; iter; iter = iter->next) {
1018         for(iter2 = iter; iter2 && !iter2->stat; iter2 = iter2->next);
1019         if(!iter2)
1020             break;
1021
1022         while(iter != iter2) {
1023             iter->stat = iter2->stat;
1024             iter = iter->next;
1025         }
1026
1027         if(stat) {
1028             while(stat->next)
1029                 stat = stat->next;
1030             stat->next = iter->stat;
1031         }else {
1032             stat = iter->stat;
1033         }
1034     }
1035
1036     return ret;
1037 }
1038
1039 static statement_t *new_block_statement(parser_ctx_t *ctx, statement_list_t *list)
1040 {
1041     block_statement_t *ret;
1042
1043     ret = new_statement(ctx, STAT_BLOCK, sizeof(*ret));
1044     if(!ret)
1045         return NULL;
1046
1047     ret->stat_list = list ? list->head : NULL;
1048
1049     return &ret->stat;
1050 }
1051
1052 static variable_declaration_t *new_variable_declaration(parser_ctx_t *ctx, const WCHAR *identifier, expression_t *expr)
1053 {
1054     variable_declaration_t *ret = parser_alloc(ctx, sizeof(variable_declaration_t));
1055
1056     ret->identifier = identifier;
1057     ret->expr = expr;
1058     ret->next = NULL;
1059     ret->global_next = NULL;
1060
1061     return ret;
1062 }
1063
1064 static variable_list_t *new_variable_list(parser_ctx_t *ctx, variable_declaration_t *decl)
1065 {
1066     variable_list_t *ret = parser_alloc_tmp(ctx, sizeof(variable_list_t));
1067
1068     ret->head = ret->tail = decl;
1069
1070     return ret;
1071 }
1072
1073 static variable_list_t *variable_list_add(parser_ctx_t *ctx, variable_list_t *list, variable_declaration_t *decl)
1074 {
1075     list->tail = list->tail->next = decl;
1076
1077     return list;
1078 }
1079
1080 static statement_t *new_var_statement(parser_ctx_t *ctx, variable_list_t *variable_list)
1081 {
1082     var_statement_t *ret;
1083
1084     ret = new_statement(ctx, STAT_VAR, sizeof(*ret));
1085     if(!ret)
1086         return NULL;
1087
1088     ret->variable_list = variable_list->head;
1089
1090     return &ret->stat;
1091 }
1092
1093 static statement_t *new_expression_statement(parser_ctx_t *ctx, expression_t *expr)
1094 {
1095     expression_statement_t *ret;
1096
1097     ret = new_statement(ctx, STAT_EXPR, sizeof(*ret));
1098     if(!ret)
1099         return NULL;
1100
1101     ret->expr = expr;
1102
1103     return &ret->stat;
1104 }
1105
1106 static statement_t *new_if_statement(parser_ctx_t *ctx, expression_t *expr, statement_t *if_stat, statement_t *else_stat)
1107 {
1108     if_statement_t *ret;
1109
1110     ret = new_statement(ctx, STAT_IF, sizeof(*ret));
1111     if(!ret)
1112         return NULL;
1113
1114     ret->expr = expr;
1115     ret->if_stat = if_stat;
1116     ret->else_stat = else_stat;
1117
1118     return &ret->stat;
1119 }
1120
1121 static statement_t *new_while_statement(parser_ctx_t *ctx, BOOL dowhile, expression_t *expr, statement_t *stat)
1122 {
1123     while_statement_t *ret;
1124
1125     ret = new_statement(ctx, STAT_WHILE, sizeof(*ret));
1126     if(!ret)
1127         return NULL;
1128
1129     ret->do_while = dowhile;
1130     ret->expr = expr;
1131     ret->statement = stat;
1132
1133     return &ret->stat;
1134 }
1135
1136 static statement_t *new_for_statement(parser_ctx_t *ctx, variable_list_t *variable_list, expression_t *begin_expr,
1137         expression_t *expr, expression_t *end_expr, statement_t *statement)
1138 {
1139     for_statement_t *ret;
1140
1141     ret = new_statement(ctx, STAT_FOR, sizeof(*ret));
1142     if(!ret)
1143         return NULL;
1144
1145     ret->variable_list = variable_list ? variable_list->head : NULL;
1146     ret->begin_expr = begin_expr;
1147     ret->expr = expr;
1148     ret->end_expr = end_expr;
1149     ret->statement = statement;
1150
1151     return &ret->stat;
1152 }
1153
1154 static statement_t *new_forin_statement(parser_ctx_t *ctx, variable_declaration_t *variable, expression_t *expr,
1155         expression_t *in_expr, statement_t *statement)
1156 {
1157     forin_statement_t *ret;
1158
1159     ret = new_statement(ctx, STAT_FORIN, sizeof(*ret));
1160     if(!ret)
1161         return NULL;
1162
1163     ret->variable = variable;
1164     ret->expr = expr;
1165     ret->in_expr = in_expr;
1166     ret->statement = statement;
1167
1168     return &ret->stat;
1169 }
1170
1171 static statement_t *new_continue_statement(parser_ctx_t *ctx, const WCHAR *identifier)
1172 {
1173     branch_statement_t *ret;
1174
1175     ret = new_statement(ctx, STAT_CONTINUE, sizeof(*ret));
1176     if(!ret)
1177         return NULL;
1178
1179     ret->identifier = identifier;
1180
1181     return &ret->stat;
1182 }
1183
1184 static statement_t *new_break_statement(parser_ctx_t *ctx, const WCHAR *identifier)
1185 {
1186     branch_statement_t *ret;
1187
1188     ret = new_statement(ctx, STAT_BREAK, sizeof(*ret));
1189     if(!ret)
1190         return NULL;
1191
1192     ret->identifier = identifier;
1193
1194     return &ret->stat;
1195 }
1196
1197 static statement_t *new_return_statement(parser_ctx_t *ctx, expression_t *expr)
1198 {
1199     expression_statement_t *ret;
1200
1201     ret = new_statement(ctx, STAT_RETURN, sizeof(*ret));
1202     if(!ret)
1203         return NULL;
1204
1205     ret->expr = expr;
1206
1207     return &ret->stat;
1208 }
1209
1210 static statement_t *new_with_statement(parser_ctx_t *ctx, expression_t *expr, statement_t *statement)
1211 {
1212     with_statement_t *ret;
1213
1214     ret = new_statement(ctx, STAT_WITH, sizeof(*ret));
1215     if(!ret)
1216         return NULL;
1217
1218     ret->expr = expr;
1219     ret->statement = statement;
1220
1221     return &ret->stat;
1222 }
1223
1224 static statement_t *new_labelled_statement(parser_ctx_t *ctx, const WCHAR *identifier, statement_t *statement)
1225 {
1226     labelled_statement_t *ret;
1227
1228     ret = new_statement(ctx, STAT_LABEL, sizeof(*ret));
1229     if(!ret)
1230         return NULL;
1231
1232     ret->identifier = identifier;
1233     ret->statement = statement;
1234
1235     return &ret->stat;
1236 }
1237
1238 static statement_t *new_switch_statement(parser_ctx_t *ctx, expression_t *expr, case_clausule_t *case_list)
1239 {
1240     switch_statement_t *ret;
1241
1242     ret = new_statement(ctx, STAT_SWITCH, sizeof(*ret));
1243     if(!ret)
1244         return NULL;
1245
1246     ret->expr = expr;
1247     ret->case_list = case_list;
1248
1249     return &ret->stat;
1250 }
1251
1252 static statement_t *new_throw_statement(parser_ctx_t *ctx, expression_t *expr)
1253 {
1254     expression_statement_t *ret;
1255
1256     ret = new_statement(ctx, STAT_THROW, sizeof(*ret));
1257     if(!ret)
1258         return NULL;
1259
1260     ret->expr = expr;
1261
1262     return &ret->stat;
1263 }
1264
1265 static statement_t *new_try_statement(parser_ctx_t *ctx, statement_t *try_statement,
1266        catch_block_t *catch_block, statement_t *finally_statement)
1267 {
1268     try_statement_t *ret;
1269
1270     ret = new_statement(ctx, STAT_TRY, sizeof(*ret));
1271     if(!ret)
1272         return NULL;
1273
1274     ret->try_statement = try_statement;
1275     ret->catch_block = catch_block;
1276     ret->finally_statement = finally_statement;
1277
1278     return &ret->stat;
1279 }
1280
1281 static parameter_t *new_parameter(parser_ctx_t *ctx, const WCHAR *identifier)
1282 {
1283     parameter_t *ret = parser_alloc(ctx, sizeof(parameter_t));
1284
1285     ret->identifier = identifier;
1286     ret->next = NULL;
1287
1288     return ret;
1289 }
1290
1291 static parameter_list_t *new_parameter_list(parser_ctx_t *ctx, const WCHAR *identifier)
1292 {
1293     parameter_list_t *ret = parser_alloc_tmp(ctx, sizeof(parameter_list_t));
1294
1295     ret->head = ret->tail = new_parameter(ctx, identifier);
1296
1297     return ret;
1298 }
1299
1300 static parameter_list_t *parameter_list_add(parser_ctx_t *ctx, parameter_list_t *list, const WCHAR *identifier)
1301 {
1302     list->tail = list->tail->next = new_parameter(ctx, identifier);
1303
1304     return list;
1305 }
1306
1307 static expression_t *new_function_expression(parser_ctx_t *ctx, const WCHAR *identifier, parameter_list_t *parameter_list,
1308     source_elements_t *source_elements, const WCHAR *event_target, const WCHAR *src_str, DWORD src_len)
1309 {
1310     function_expression_t *ret = new_expression(ctx, EXPR_FUNC, sizeof(*ret));
1311
1312     ret->identifier = identifier;
1313     ret->parameter_list = parameter_list ? parameter_list->head : NULL;
1314     ret->source_elements = source_elements;
1315     ret->event_target = event_target;
1316     ret->src_str = src_str;
1317     ret->src_len = src_len;
1318     ret->next = NULL;
1319
1320     return &ret->expr;
1321 }
1322
1323 static void *new_expression(parser_ctx_t *ctx, expression_type_t type, size_t size)
1324 {
1325     expression_t *ret = parser_alloc(ctx, size ? size : sizeof(*ret));
1326
1327     ret->type = type;
1328
1329     return ret;
1330 }
1331
1332 static expression_t *new_binary_expression(parser_ctx_t *ctx, expression_type_t type,
1333        expression_t *expression1, expression_t *expression2)
1334 {
1335     binary_expression_t *ret = new_expression(ctx, type, sizeof(*ret));
1336
1337     ret->expression1 = expression1;
1338     ret->expression2 = expression2;
1339
1340     return &ret->expr;
1341 }
1342
1343 static expression_t *new_unary_expression(parser_ctx_t *ctx, expression_type_t type, expression_t *expression)
1344 {
1345     unary_expression_t *ret = new_expression(ctx, type, sizeof(*ret));
1346
1347     ret->expression = expression;
1348
1349     return &ret->expr;
1350 }
1351
1352 static expression_t *new_conditional_expression(parser_ctx_t *ctx, expression_t *expression,
1353        expression_t *true_expression, expression_t *false_expression)
1354 {
1355     conditional_expression_t *ret = new_expression(ctx, EXPR_COND, sizeof(*ret));
1356
1357     ret->expression = expression;
1358     ret->true_expression = true_expression;
1359     ret->false_expression = false_expression;
1360
1361     return &ret->expr;
1362 }
1363
1364 static expression_t *new_member_expression(parser_ctx_t *ctx, expression_t *expression, const WCHAR *identifier)
1365 {
1366     member_expression_t *ret = new_expression(ctx, EXPR_MEMBER, sizeof(*ret));
1367
1368     ret->expression = expression;
1369     ret->identifier = identifier;
1370
1371     return &ret->expr;
1372 }
1373
1374 static expression_t *new_new_expression(parser_ctx_t *ctx, expression_t *expression, argument_list_t *argument_list)
1375 {
1376     call_expression_t *ret = new_expression(ctx, EXPR_NEW, sizeof(*ret));
1377
1378     ret->expression = expression;
1379     ret->argument_list = argument_list ? argument_list->head : NULL;
1380
1381     return &ret->expr;
1382 }
1383
1384 static expression_t *new_call_expression(parser_ctx_t *ctx, expression_t *expression, argument_list_t *argument_list)
1385 {
1386     call_expression_t *ret = new_expression(ctx, EXPR_CALL, sizeof(*ret));
1387
1388     ret->expression = expression;
1389     ret->argument_list = argument_list ? argument_list->head : NULL;
1390
1391     return &ret->expr;
1392 }
1393
1394 static int parser_error(parser_ctx_t *ctx, const char *str)
1395 {
1396     return 0;
1397 }
1398
1399 static void set_error(parser_ctx_t *ctx, UINT error)
1400 {
1401     ctx->hres = error;
1402 }
1403
1404 static BOOL explicit_error(parser_ctx_t *ctx, void *obj, WCHAR next)
1405 {
1406     if(obj || *(ctx->ptr-1)==next) return TRUE;
1407
1408     set_error(ctx, JS_E_SYNTAX);
1409     return FALSE;
1410 }
1411
1412
1413 static expression_t *new_identifier_expression(parser_ctx_t *ctx, const WCHAR *identifier)
1414 {
1415     identifier_expression_t *ret = new_expression(ctx, EXPR_IDENT, sizeof(*ret));
1416
1417     ret->identifier = identifier;
1418
1419     return &ret->expr;
1420 }
1421
1422 static expression_t *new_array_literal_expression(parser_ctx_t *ctx, element_list_t *element_list, int length)
1423 {
1424     array_literal_expression_t *ret = new_expression(ctx, EXPR_ARRAYLIT, sizeof(*ret));
1425
1426     ret->element_list = element_list ? element_list->head : NULL;
1427     ret->length = length;
1428
1429     return &ret->expr;
1430 }
1431
1432 static expression_t *new_prop_and_value_expression(parser_ctx_t *ctx, property_list_t *property_list)
1433 {
1434     property_value_expression_t *ret = new_expression(ctx, EXPR_PROPVAL, sizeof(*ret));
1435
1436     ret->property_list = property_list ? property_list->head : NULL;
1437
1438     return &ret->expr;
1439 }
1440
1441 static expression_t *new_literal_expression(parser_ctx_t *ctx, literal_t *literal)
1442 {
1443     literal_expression_t *ret = new_expression(ctx, EXPR_LITERAL, sizeof(*ret));
1444
1445     ret->literal = literal;
1446
1447     return &ret->expr;
1448 }
1449
1450 static source_elements_t *new_source_elements(parser_ctx_t *ctx)
1451 {
1452     source_elements_t *ret = parser_alloc(ctx, sizeof(source_elements_t));
1453
1454     memset(ret, 0, sizeof(*ret));
1455
1456     return ret;
1457 }
1458
1459 static source_elements_t *source_elements_add_statement(source_elements_t *source_elements, statement_t *statement)
1460 {
1461     if(source_elements->statement_tail)
1462         source_elements->statement_tail = source_elements->statement_tail->next = statement;
1463     else
1464         source_elements->statement = source_elements->statement_tail = statement;
1465
1466     return source_elements;
1467 }
1468
1469 static statement_list_t *new_statement_list(parser_ctx_t *ctx, statement_t *statement)
1470 {
1471     statement_list_t *ret =  parser_alloc_tmp(ctx, sizeof(statement_list_t));
1472
1473     ret->head = ret->tail = statement;
1474
1475     return ret;
1476 }
1477
1478 static statement_list_t *statement_list_add(statement_list_t *list, statement_t *statement)
1479 {
1480     list->tail = list->tail->next = statement;
1481
1482     return list;
1483 }
1484
1485 static void program_parsed(parser_ctx_t *ctx, source_elements_t *source)
1486 {
1487     ctx->source = source;
1488     if(!ctx->lexer_error)
1489         ctx->hres = S_OK;
1490 }
1491
1492 void parser_release(parser_ctx_t *ctx)
1493 {
1494     script_release(ctx->script);
1495     heap_pool_free(&ctx->heap);
1496     heap_free(ctx);
1497 }
1498
1499 HRESULT script_parse(script_ctx_t *ctx, const WCHAR *code, const WCHAR *delimiter, BOOL from_eval,
1500         parser_ctx_t **ret)
1501 {
1502     parser_ctx_t *parser_ctx;
1503     heap_pool_t *mark;
1504     HRESULT hres;
1505
1506     const WCHAR html_tagW[] = {'<','/','s','c','r','i','p','t','>',0};
1507
1508     parser_ctx = heap_alloc_zero(sizeof(parser_ctx_t));
1509     if(!parser_ctx)
1510         return E_OUTOFMEMORY;
1511
1512     parser_ctx->hres = JS_E_SYNTAX;
1513     parser_ctx->is_html = delimiter && !strcmpiW(delimiter, html_tagW);
1514
1515     parser_ctx->begin = parser_ctx->ptr = code;
1516     parser_ctx->end = parser_ctx->begin + strlenW(parser_ctx->begin);
1517
1518     script_addref(ctx);
1519     parser_ctx->script = ctx;
1520
1521     mark = heap_pool_mark(&ctx->tmp_heap);
1522     heap_pool_init(&parser_ctx->heap);
1523
1524     parser_parse(parser_ctx);
1525     heap_pool_clear(mark);
1526     hres = parser_ctx->hres;
1527     if(FAILED(hres)) {
1528         WARN("parser failed around %s\n",
1529             debugstr_w(parser_ctx->begin+20 > parser_ctx->ptr ? parser_ctx->begin : parser_ctx->ptr-20));
1530         parser_release(parser_ctx);
1531         return hres;
1532     }
1533
1534     *ret = parser_ctx;
1535     return S_OK;
1536 }