dlls/jscript/engine.h

   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 typedef struct _source_elements_t source_elements_t;
  20 typedef struct _function_expression_t function_expression_t;
  21 typedef struct _expression_t expression_t;
  22
  23 typedef struct _function_declaration_t {
  24     function_expression_t *expr;
  25
  26     struct _function_declaration_t *next;
  27 } function_declaration_t;
  28
  29 typedef struct _var_list_t {
  30     const WCHAR *identifier;
  31
  32     struct _var_list_t *next;
  33 } var_list_t;
  34
  35 typedef struct _func_stack {
  36     function_declaration_t *func_head;
  37     function_declaration_t *func_tail;
  38     var_list_t *var_head;
  39     var_list_t *var_tail;
  40
  41     struct _func_stack *next;
  42 } func_stack_t;
  43
  44 #define OP_LIST                            \
  45     X(add,        1, 0,0)                  \
  46     X(bool,       1, ARG_INT,    0)        \
  47     X(bneg,       1, 0,0)                  \
  48     X(delete,     1, 0,0)                  \
  49     X(div,        1, 0,0)                  \
  50     X(double,     1, ARG_SBL,    0)        \
  51     X(eq,         1, 0,0)                  \
  52     X(eq2,        1, 0,0)                  \
  53     X(gt,         1, 0,0)                  \
  54     X(ident,      1, ARG_BSTR,   0)        \
  55     X(in,         1, 0,0)                  \
  56     X(int,        1, ARG_INT,    0)        \
  57     X(jmp,        0, ARG_ADDR,   0)        \
  58     X(jmp_nz,     0, ARG_ADDR,   0)        \
  59     X(jmp_z,      0, ARG_ADDR,   0)        \
  60     X(lt,         1, 0,0)                  \
  61     X(lteq,       1, 0,0)                  \
  62     X(minus,      1, 0,0)                  \
  63     X(mod,        1, 0,0)                  \
  64     X(mul,        1, 0,0)                  \
  65     X(neg,        1, 0,0)                  \
  66     X(neq,        1, 0,0)                  \
  67     X(neq2,       1, 0,0)                  \
  68     X(new,        1, ARG_INT,    0)        \
  69     X(null,       1, 0,0)                  \
  70     X(or,         1, 0,0)                  \
  71     X(pop,        1, 0,0)                  \
  72     X(regexp,     1, ARG_STR,    ARG_INT)  \
  73     X(str,        1, ARG_STR,    0)        \
  74     X(this,       1, 0,0)                  \
  75     X(tonum,      1, 0,0)                  \
  76     X(tree,       1, ARG_EXPR,   0)        \
  77     X(ret,        0, 0,0)                  \
  78     X(sub,        1, 0,0)                  \
  79     X(void,       1, 0,0)                  \
  80     X(xor,        1, 0,0)
  81
  82 typedef enum {
  83 #define X(x,a,b,c) OP_##x,
  84 OP_LIST
  85 #undef X
  86     OP_LAST
  87 } jsop_t;
  88
  89 typedef union {
  90     expression_t *expr;
  91     BSTR bstr;
  92     double *dbl;
  93     LONG lng;
  94     WCHAR *str;
  95     unsigned uint;
  96 } instr_arg_t;
  97
  98 typedef enum {
  99     ARG_NONE = 0,
 100     ARG_ADDR,
 101     ARG_BSTR,
 102     ARG_EXPR,
 103     ARG_INT,
 104     ARG_STR
 105 } instr_arg_type_t;
 106
 107 typedef struct {
 108     jsop_t op;
 109     instr_arg_t arg1;
 110     instr_arg_t arg2;
 111 } instr_t;
 112
 113 typedef struct {
 114     instr_t *instrs;
 115     jsheap_t heap;
 116
 117     BSTR *bstr_pool;
 118     unsigned bstr_pool_size;
 119     unsigned bstr_cnt;
 120 } bytecode_t;
 121
 122 void release_bytecode(bytecode_t*);
 123
 124 typedef struct _compiler_ctx_t compiler_ctx_t;
 125
 126 void release_compiler(compiler_ctx_t*);
 127
 128 typedef struct _parser_ctx_t {
 129     LONG ref;
 130
 131     WCHAR *begin;
 132     const WCHAR *end;
 133     const WCHAR *ptr;
 134
 135     script_ctx_t *script;
 136     source_elements_t *source;
 137     BOOL nl;
 138     BOOL is_html;
 139     BOOL lexer_error;
 140     HRESULT hres;
 141
 142     jsheap_t heap;
 143
 144     func_stack_t *func_stack;
 145
 146     bytecode_t *code;
 147     compiler_ctx_t *compiler;
 148
 149     struct _parser_ctx_t *next;
 150 } parser_ctx_t;
 151
 152 HRESULT script_parse(script_ctx_t*,const WCHAR*,const WCHAR*,parser_ctx_t**) DECLSPEC_HIDDEN;
 153 void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
 154
 155 int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
 156
 157 static inline void parser_addref(parser_ctx_t *ctx)
 158 {
 159     ctx->ref++;
 160 }
 161
 162 static inline void *parser_alloc(parser_ctx_t *ctx, DWORD size)
 163 {
 164     return jsheap_alloc(&ctx->heap, size);
 165 }
 166
 167 static inline void *parser_alloc_tmp(parser_ctx_t *ctx, DWORD size)
 168 {
 169     return jsheap_alloc(&ctx->script->tmp_heap, size);
 170 }
 171
 172 typedef struct _scope_chain_t {
 173     LONG ref;
 174     jsdisp_t *obj;
 175     struct _scope_chain_t *next;
 176 } scope_chain_t;
 177
 178 HRESULT scope_push(scope_chain_t*,jsdisp_t*,scope_chain_t**) DECLSPEC_HIDDEN;
 179 void scope_release(scope_chain_t*) DECLSPEC_HIDDEN;
 180
 181 static inline void scope_addref(scope_chain_t *scope)
 182 {
 183     scope->ref++;
 184 }
 185
 186 struct _exec_ctx_t {
 187     LONG ref;
 188
 189     parser_ctx_t *parser;
 190     scope_chain_t *scope_chain;
 191     jsdisp_t *var_disp;
 192     IDispatch *this_obj;
 193     BOOL is_global;
 194
 195     VARIANT *stack;
 196     unsigned stack_size;
 197     unsigned top;
 198
 199     unsigned ip;
 200     jsexcept_t ei;
 201 };
 202
 203 static inline void exec_addref(exec_ctx_t *ctx)
 204 {
 205     ctx->ref++;
 206 }
 207
 208 void exec_release(exec_ctx_t*) DECLSPEC_HIDDEN;
 209 HRESULT create_exec_ctx(script_ctx_t*,IDispatch*,jsdisp_t*,scope_chain_t*,BOOL,exec_ctx_t**) DECLSPEC_HIDDEN;
 210 HRESULT exec_source(exec_ctx_t*,parser_ctx_t*,source_elements_t*,BOOL,jsexcept_t*,VARIANT*) DECLSPEC_HIDDEN;
 211
 212 typedef struct _statement_t statement_t;
 213 typedef struct _parameter_t parameter_t;
 214
 215 HRESULT create_source_function(parser_ctx_t*,parameter_t*,source_elements_t*,scope_chain_t*,
 216         const WCHAR*,DWORD,jsdisp_t**) DECLSPEC_HIDDEN;
 217
 218 typedef enum {
 219     LT_INT,
 220     LT_DOUBLE,
 221     LT_STRING,
 222     LT_BOOL,
 223     LT_NULL,
 224     LT_REGEXP
 225 }literal_type_t;
 226
 227 typedef struct {
 228     literal_type_t type;
 229     union {
 230         LONG lval;
 231         double dval;
 232         const WCHAR *wstr;
 233         VARIANT_BOOL bval;
 234         struct {
 235             const WCHAR *str;
 236             DWORD str_len;
 237             DWORD flags;
 238         } regexp;
 239     } u;
 240 } literal_t;
 241
 242 literal_t *parse_regexp(parser_ctx_t*) DECLSPEC_HIDDEN;
 243 literal_t *new_boolean_literal(parser_ctx_t*,VARIANT_BOOL) DECLSPEC_HIDDEN;
 244
 245 typedef struct _variable_declaration_t {
 246     const WCHAR *identifier;
 247     expression_t *expr;
 248
 249     struct _variable_declaration_t *next;
 250 } variable_declaration_t;
 251
 252 typedef struct _return_type_t return_type_t;
 253
 254 typedef HRESULT (*statement_eval_t)(script_ctx_t*,statement_t*,return_type_t*,VARIANT*);
 255
 256 struct _statement_t {
 257     statement_eval_t eval;
 258     statement_t *next;
 259 };
 260
 261 typedef struct {
 262     statement_t stat;
 263     statement_t *stat_list;
 264 } block_statement_t;
 265
 266 typedef struct {
 267     statement_t stat;
 268     variable_declaration_t *variable_list;
 269 } var_statement_t;
 270
 271 typedef struct {
 272     statement_t stat;
 273     expression_t *expr;
 274 } expression_statement_t;
 275
 276 typedef struct {
 277     statement_t stat;
 278     expression_t *expr;
 279     statement_t *if_stat;
 280     statement_t *else_stat;
 281 } if_statement_t;
 282
 283 typedef struct {
 284     statement_t stat;
 285     BOOL do_while;
 286     expression_t *expr;
 287     statement_t *statement;
 288 } while_statement_t;
 289
 290 typedef struct {
 291     statement_t stat;
 292     variable_declaration_t *variable_list;
 293     expression_t *begin_expr;
 294     expression_t *expr;
 295     expression_t *end_expr;
 296     statement_t *statement;
 297 } for_statement_t;
 298
 299 typedef struct {
 300     statement_t stat;
 301     variable_declaration_t *variable;
 302     expression_t *expr;
 303     expression_t *in_expr;
 304     statement_t *statement;
 305 } forin_statement_t;
 306
 307 typedef struct {
 308     statement_t stat;
 309     const WCHAR *identifier;
 310 } branch_statement_t;
 311
 312 typedef struct {
 313     statement_t stat;
 314     expression_t *expr;
 315     statement_t *statement;
 316 } with_statement_t;
 317
 318 typedef struct {
 319     statement_t stat;
 320     const WCHAR *identifier;
 321     statement_t *statement;
 322 } labelled_statement_t;
 323
 324 typedef struct _case_clausule_t {
 325     expression_t *expr;
 326     statement_t *stat;
 327
 328     struct _case_clausule_t *next;
 329 } case_clausule_t;
 330
 331 typedef struct {
 332     statement_t stat;
 333     expression_t *expr;
 334     case_clausule_t *case_list;
 335 } switch_statement_t;
 336
 337 typedef struct {
 338     const WCHAR *identifier;
 339     statement_t *statement;
 340 } catch_block_t;
 341
 342 typedef struct {
 343     statement_t stat;
 344     statement_t *try_statement;
 345     catch_block_t *catch_block;
 346     statement_t *finally_statement;
 347 } try_statement_t;
 348
 349 HRESULT block_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 350 HRESULT var_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 351 HRESULT empty_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 352 HRESULT expression_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 353 HRESULT if_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 354 HRESULT while_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 355 HRESULT for_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 356 HRESULT forin_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 357 HRESULT continue_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 358 HRESULT break_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 359 HRESULT return_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 360 HRESULT with_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 361 HRESULT labelled_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 362 HRESULT switch_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 363 HRESULT throw_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 364 HRESULT try_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
 365
 366 typedef struct {
 367     enum {
 368         EXPRVAL_VARIANT,
 369         EXPRVAL_IDREF,
 370         EXPRVAL_INVALID
 371     } type;
 372     union {
 373         VARIANT var;
 374         struct {
 375             IDispatch *disp;
 376             DISPID id;
 377         } idref;
 378         BSTR identifier;
 379     } u;
 380 } exprval_t;
 381
 382 typedef enum {
 383      EXPR_COMMA,
 384      EXPR_OR,
 385      EXPR_AND,
 386      EXPR_BOR,
 387      EXPR_BXOR,
 388      EXPR_BAND,
 389      EXPR_INSTANCEOF,
 390      EXPR_IN,
 391      EXPR_ADD,
 392      EXPR_SUB,
 393      EXPR_MUL,
 394      EXPR_DIV,
 395      EXPR_MOD,
 396      EXPR_DELETE,
 397      EXPR_VOID,
 398      EXPR_TYPEOF,
 399      EXPR_MINUS,
 400      EXPR_PLUS,
 401      EXPR_POSTINC,
 402      EXPR_POSTDEC,
 403      EXPR_PREINC,
 404      EXPR_PREDEC,
 405      EXPR_EQ,
 406      EXPR_EQEQ,
 407      EXPR_NOTEQ,
 408      EXPR_NOTEQEQ,
 409      EXPR_LESS,
 410      EXPR_LESSEQ,
 411      EXPR_GREATER,
 412      EXPR_GREATEREQ,
 413      EXPR_BITNEG,
 414      EXPR_LOGNEG,
 415      EXPR_LSHIFT,
 416      EXPR_RSHIFT,
 417      EXPR_RRSHIFT,
 418      EXPR_ASSIGN,
 419      EXPR_ASSIGNLSHIFT,
 420      EXPR_ASSIGNRSHIFT,
 421      EXPR_ASSIGNRRSHIFT,
 422      EXPR_ASSIGNADD,
 423      EXPR_ASSIGNSUB,
 424      EXPR_ASSIGNMUL,
 425      EXPR_ASSIGNDIV,
 426      EXPR_ASSIGNMOD,
 427      EXPR_ASSIGNAND,
 428      EXPR_ASSIGNOR,
 429      EXPR_ASSIGNXOR,
 430      EXPR_COND,
 431      EXPR_ARRAY,
 432      EXPR_MEMBER,
 433      EXPR_NEW,
 434      EXPR_CALL,
 435      EXPR_THIS,
 436      EXPR_FUNC,
 437      EXPR_IDENT,
 438      EXPR_ARRAYLIT,
 439      EXPR_PROPVAL,
 440      EXPR_LITERAL
 441 } expression_type_t;
 442
 443 typedef HRESULT (*expression_eval_t)(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*);
 444
 445 struct _expression_t {
 446     expression_type_t type;
 447     expression_eval_t eval;
 448     unsigned instr_off;
 449 };
 450
 451 struct _parameter_t {
 452     const WCHAR *identifier;
 453
 454     struct _parameter_t *next;
 455 };
 456
 457 struct _source_elements_t {
 458     statement_t *statement;
 459     statement_t *statement_tail;
 460     function_declaration_t *functions;
 461     var_list_t *variables;
 462 };
 463
 464 struct _function_expression_t {
 465     expression_t expr;
 466     const WCHAR *identifier;
 467     parameter_t *parameter_list;
 468     source_elements_t *source_elements;
 469     const WCHAR *src_str;
 470     DWORD src_len;
 471 };
 472
 473 typedef struct {
 474     expression_t expr;
 475     expression_t *expression1;
 476     expression_t *expression2;
 477 } binary_expression_t;
 478
 479 typedef struct {
 480     expression_t expr;
 481     expression_t *expression;
 482 } unary_expression_t;
 483
 484 typedef struct {
 485     expression_t expr;
 486     expression_t *expression;
 487     expression_t *true_expression;
 488     expression_t *false_expression;
 489 } conditional_expression_t;
 490
 491 typedef struct {
 492     expression_t expr;
 493     expression_t *member_expr;
 494     expression_t *expression;
 495 } array_expression_t;
 496
 497 typedef struct {
 498     expression_t expr;
 499     expression_t *expression;
 500     const WCHAR *identifier;
 501 } member_expression_t;
 502
 503 typedef struct _argument_t {
 504     expression_t *expr;
 505
 506     struct _argument_t *next;
 507 } argument_t;
 508
 509 typedef struct {
 510     expression_t expr;
 511     expression_t *expression;
 512     argument_t *argument_list;
 513 } call_expression_t;
 514
 515 typedef struct {
 516     expression_t expr;
 517     const WCHAR *identifier;
 518 } identifier_expression_t;
 519
 520 typedef struct {
 521     expression_t expr;
 522     literal_t *literal;
 523 } literal_expression_t;
 524
 525 typedef struct _array_element_t {
 526     int elision;
 527     expression_t *expr;
 528
 529     struct _array_element_t *next;
 530 } array_element_t;
 531
 532 typedef struct {
 533     expression_t expr;
 534     array_element_t *element_list;
 535     int length;
 536 } array_literal_expression_t;
 537
 538 typedef struct _prop_val_t {
 539     literal_t *name;
 540     expression_t *value;
 541
 542     struct _prop_val_t *next;
 543 } prop_val_t;
 544
 545 typedef struct {
 546     expression_t expr;
 547     prop_val_t *property_list;
 548 } property_value_expression_t;
 549
 550 HRESULT function_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 551 HRESULT array_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 552 HRESULT member_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 553 HRESULT call_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 554 HRESULT identifier_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 555 HRESULT array_literal_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 556 HRESULT property_value_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 557
 558 HRESULT binary_and_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 559 HRESULT instanceof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 560 HRESULT delete_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 561 HRESULT typeof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 562 HRESULT post_increment_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 563 HRESULT post_decrement_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 564 HRESULT pre_increment_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 565 HRESULT pre_decrement_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 566 HRESULT greatereq_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 567 HRESULT left_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 568 HRESULT right_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 569 HRESULT right2_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 570 HRESULT assign_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 571 HRESULT assign_lshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 572 HRESULT assign_rshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 573 HRESULT assign_rrshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 574 HRESULT assign_add_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 575 HRESULT assign_sub_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 576 HRESULT assign_mul_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 577 HRESULT assign_div_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 578 HRESULT assign_mod_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 579 HRESULT assign_and_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 580 HRESULT assign_or_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 581 HRESULT assign_xor_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 582
 583 HRESULT compiled_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 584
 585 HRESULT compile_subscript(parser_ctx_t*,expression_t*,unsigned*) DECLSPEC_HIDDEN;