dlls/jscript/compile.c

   1 /*
   2  * Copyright 2011 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 #include <math.h>
  20 #include <assert.h>
  21
  22 #include "jscript.h"
  23 #include "engine.h"
  24 #include "parser.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  29 WINE_DECLARE_DEBUG_CHANNEL(jscript_disas);
  30
  31 typedef struct _statement_ctx_t {
  32     unsigned stack_use;
  33     BOOL using_scope;
  34     BOOL using_except;
  35
  36     unsigned break_label;
  37     unsigned continue_label;
  38
  39     const labelled_statement_t *labelled_stat;
  40
  41     struct _statement_ctx_t *next;
  42 } statement_ctx_t;
  43
  44 typedef struct {
  45     parser_ctx_t *parser;
  46     bytecode_t *code;
  47
  48     BOOL from_eval;
  49
  50     unsigned code_off;
  51     unsigned code_size;
  52
  53     unsigned *labels;
  54     unsigned labels_size;
  55     unsigned labels_cnt;
  56
  57     statement_ctx_t *stat_ctx;
  58     function_code_t *func;
  59
  60     variable_declaration_t *var_head;
  61     variable_declaration_t *var_tail;
  62
  63     function_expression_t *func_head;
  64     function_expression_t *func_tail;
  65 } compiler_ctx_t;
  66
  67 static const struct {
  68     const char *op_str;
  69     instr_arg_type_t arg1_type;
  70     instr_arg_type_t arg2_type;
  71 } instr_info[] = {
  72 #define X(n,a,b,c) {#n,b,c},
  73 OP_LIST
  74 #undef X
  75 };
  76
  77 static void dump_instr_arg(instr_arg_type_t type, instr_arg_t *arg)
  78 {
  79     switch(type) {
  80     case ARG_STR:
  81         TRACE_(jscript_disas)("\t%s", debugstr_jsstr(arg->str));
  82         break;
  83     case ARG_BSTR:
  84         TRACE_(jscript_disas)("\t%s", debugstr_wn(arg->bstr, SysStringLen(arg->bstr)));
  85         break;
  86     case ARG_INT:
  87         TRACE_(jscript_disas)("\t%d", arg->uint);
  88         break;
  89     case ARG_UINT:
  90     case ARG_ADDR:
  91         TRACE_(jscript_disas)("\t%u", arg->uint);
  92         break;
  93     case ARG_FUNC:
  94     case ARG_NONE:
  95         break;
  96     DEFAULT_UNREACHABLE;
  97     }
  98 }
  99
 100 static void dump_code(compiler_ctx_t *ctx, unsigned off)
 101 {
 102     instr_t *instr;
 103
 104     for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->code_off; instr++) {
 105         TRACE_(jscript_disas)("%d:\t%s", (int)(instr-ctx->code->instrs), instr_info[instr->op].op_str);
 106         if(instr_info[instr->op].arg1_type == ARG_DBL) {
 107             TRACE_(jscript_disas)("\t%lf", instr->u.dbl);
 108         }else {
 109             dump_instr_arg(instr_info[instr->op].arg1_type, instr->u.arg);
 110             dump_instr_arg(instr_info[instr->op].arg2_type, instr->u.arg+1);
 111         }
 112         TRACE_(jscript_disas)("\n");
 113     }
 114 }
 115
 116 static HRESULT compile_expression(compiler_ctx_t*,expression_t*,BOOL);
 117 static HRESULT compile_statement(compiler_ctx_t*,statement_ctx_t*,statement_t*);
 118
 119 static inline void *compiler_alloc(bytecode_t *code, size_t size)
 120 {
 121     return heap_pool_alloc(&code->heap, size);
 122 }
 123
 124 static jsstr_t *compiler_alloc_string_len(compiler_ctx_t *ctx, const WCHAR *str, unsigned len)
 125 {
 126     jsstr_t *new_str;
 127
 128     if(!ctx->code->str_pool_size) {
 129         ctx->code->str_pool = heap_alloc(8 * sizeof(jsstr_t*));
 130         if(!ctx->code->str_pool)
 131             return NULL;
 132         ctx->code->str_pool_size = 8;
 133     }else if(ctx->code->str_pool_size == ctx->code->str_cnt) {
 134         jsstr_t **new_pool;
 135
 136         new_pool = heap_realloc(ctx->code->str_pool, ctx->code->str_pool_size*2*sizeof(jsstr_t*));
 137         if(!new_pool)
 138             return NULL;
 139
 140         ctx->code->str_pool = new_pool;
 141         ctx->code->str_pool_size *= 2;
 142     }
 143
 144     new_str = jsstr_alloc_len(str, len);
 145     if(!new_str)
 146         return NULL;
 147
 148     ctx->code->str_pool[ctx->code->str_cnt++] = new_str;
 149     return new_str;
 150 }
 151
 152 static jsstr_t *compiler_alloc_string(compiler_ctx_t *ctx, const WCHAR *str)
 153 {
 154     return compiler_alloc_string_len(ctx, str, strlenW(str));
 155 }
 156
 157 static BOOL ensure_bstr_slot(compiler_ctx_t *ctx)
 158 {
 159     if(!ctx->code->bstr_pool_size) {
 160         ctx->code->bstr_pool = heap_alloc(8 * sizeof(BSTR));
 161         if(!ctx->code->bstr_pool)
 162             return FALSE;
 163         ctx->code->bstr_pool_size = 8;
 164     }else if(ctx->code->bstr_pool_size == ctx->code->bstr_cnt) {
 165         BSTR *new_pool;
 166
 167         new_pool = heap_realloc(ctx->code->bstr_pool, ctx->code->bstr_pool_size*2*sizeof(BSTR));
 168         if(!new_pool)
 169             return FALSE;
 170
 171         ctx->code->bstr_pool = new_pool;
 172         ctx->code->bstr_pool_size *= 2;
 173     }
 174
 175     return TRUE;
 176 }
 177
 178 static BSTR compiler_alloc_bstr(compiler_ctx_t *ctx, const WCHAR *str)
 179 {
 180     if(!ensure_bstr_slot(ctx))
 181         return NULL;
 182
 183     ctx->code->bstr_pool[ctx->code->bstr_cnt] = SysAllocString(str);
 184     if(!ctx->code->bstr_pool[ctx->code->bstr_cnt])
 185         return NULL;
 186
 187     return ctx->code->bstr_pool[ctx->code->bstr_cnt++];
 188 }
 189
 190 static BSTR compiler_alloc_bstr_len(compiler_ctx_t *ctx, const WCHAR *str, size_t len)
 191 {
 192     if(!ensure_bstr_slot(ctx))
 193         return NULL;
 194
 195     ctx->code->bstr_pool[ctx->code->bstr_cnt] = SysAllocStringLen(str, len);
 196     if(!ctx->code->bstr_pool[ctx->code->bstr_cnt])
 197         return NULL;
 198
 199     return ctx->code->bstr_pool[ctx->code->bstr_cnt++];
 200 }
 201
 202 static unsigned push_instr(compiler_ctx_t *ctx, jsop_t op)
 203 {
 204     assert(ctx->code_size >= ctx->code_off);
 205
 206     if(ctx->code_size == ctx->code_off) {
 207         instr_t *new_instrs;
 208
 209         new_instrs = heap_realloc(ctx->code->instrs, ctx->code_size*2*sizeof(instr_t));
 210         if(!new_instrs)
 211             return 0;
 212
 213         ctx->code->instrs = new_instrs;
 214         ctx->code_size *= 2;
 215     }
 216
 217     ctx->code->instrs[ctx->code_off].op = op;
 218     return ctx->code_off++;
 219 }
 220
 221 static inline instr_t *instr_ptr(compiler_ctx_t *ctx, unsigned off)
 222 {
 223     assert(off < ctx->code_off);
 224     return ctx->code->instrs + off;
 225 }
 226
 227 static HRESULT push_instr_int(compiler_ctx_t *ctx, jsop_t op, LONG arg)
 228 {
 229     unsigned instr;
 230
 231     instr = push_instr(ctx, op);
 232     if(!instr)
 233         return E_OUTOFMEMORY;
 234
 235     instr_ptr(ctx, instr)->u.arg->lng = arg;
 236     return S_OK;
 237 }
 238
 239 static HRESULT push_instr_str(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg)
 240 {
 241     unsigned instr;
 242     jsstr_t *str;
 243
 244     str = compiler_alloc_string(ctx, arg);
 245     if(!str)
 246         return E_OUTOFMEMORY;
 247
 248     instr = push_instr(ctx, op);
 249     if(!instr)
 250         return E_OUTOFMEMORY;
 251
 252     instr_ptr(ctx, instr)->u.arg->str = str;
 253     return S_OK;
 254 }
 255
 256 static HRESULT push_instr_bstr(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg)
 257 {
 258     unsigned instr;
 259     WCHAR *str;
 260
 261     str = compiler_alloc_bstr(ctx, arg);
 262     if(!str)
 263         return E_OUTOFMEMORY;
 264
 265     instr = push_instr(ctx, op);
 266     if(!instr)
 267         return E_OUTOFMEMORY;
 268
 269     instr_ptr(ctx, instr)->u.arg->bstr = str;
 270     return S_OK;
 271 }
 272
 273 static HRESULT push_instr_bstr_uint(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg1, unsigned arg2)
 274 {
 275     unsigned instr;
 276     WCHAR *str;
 277
 278     str = compiler_alloc_bstr(ctx, arg1);
 279     if(!str)
 280         return E_OUTOFMEMORY;
 281
 282     instr = push_instr(ctx, op);
 283     if(!instr)
 284         return E_OUTOFMEMORY;
 285
 286     instr_ptr(ctx, instr)->u.arg[0].bstr = str;
 287     instr_ptr(ctx, instr)->u.arg[1].uint = arg2;
 288     return S_OK;
 289 }
 290
 291 static HRESULT push_instr_uint_str(compiler_ctx_t *ctx, jsop_t op, unsigned arg1, const WCHAR *arg2)
 292 {
 293     unsigned instr;
 294     jsstr_t *str;
 295
 296     str = compiler_alloc_string(ctx, arg2);
 297     if(!str)
 298         return E_OUTOFMEMORY;
 299
 300     instr = push_instr(ctx, op);
 301     if(!instr)
 302         return E_OUTOFMEMORY;
 303
 304     instr_ptr(ctx, instr)->u.arg[0].uint = arg1;
 305     instr_ptr(ctx, instr)->u.arg[1].str = str;
 306     return S_OK;
 307 }
 308
 309 static HRESULT push_instr_double(compiler_ctx_t *ctx, jsop_t op, double arg)
 310 {
 311     unsigned instr;
 312
 313     instr = push_instr(ctx, op);
 314     if(!instr)
 315         return E_OUTOFMEMORY;
 316
 317     instr_ptr(ctx, instr)->u.dbl = arg;
 318     return S_OK;
 319 }
 320
 321 static inline void set_arg_uint(compiler_ctx_t *ctx, unsigned instr, unsigned arg)
 322 {
 323     instr_ptr(ctx, instr)->u.arg->uint = arg;
 324 }
 325
 326 static HRESULT push_instr_uint(compiler_ctx_t *ctx, jsop_t op, unsigned arg)
 327 {
 328     unsigned instr;
 329
 330     instr = push_instr(ctx, op);
 331     if(!instr)
 332         return E_OUTOFMEMORY;
 333
 334     set_arg_uint(ctx, instr, arg);
 335     return S_OK;
 336 }
 337
 338 static HRESULT compile_binary_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
 339 {
 340     HRESULT hres;
 341
 342     hres = compile_expression(ctx, expr->expression1, TRUE);
 343     if(FAILED(hres))
 344         return hres;
 345
 346     hres = compile_expression(ctx, expr->expression2, TRUE);
 347     if(FAILED(hres))
 348         return hres;
 349
 350     return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
 351 }
 352
 353 static HRESULT compile_unary_expression(compiler_ctx_t *ctx, unary_expression_t *expr, jsop_t op)
 354 {
 355     HRESULT hres;
 356
 357     hres = compile_expression(ctx, expr->expression, TRUE);
 358     if(FAILED(hres))
 359         return hres;
 360
 361     return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
 362 }
 363
 364 /* ECMA-262 3rd Edition    11.2.1 */
 365 static HRESULT compile_member_expression(compiler_ctx_t *ctx, member_expression_t *expr)
 366 {
 367     HRESULT hres;
 368
 369     hres = compile_expression(ctx, expr->expression, TRUE);
 370     if(FAILED(hres))
 371         return hres;
 372
 373     return push_instr_bstr(ctx, OP_member, expr->identifier);
 374 }
 375
 376 #define LABEL_FLAG 0x80000000
 377
 378 static unsigned alloc_label(compiler_ctx_t *ctx)
 379 {
 380     if(!ctx->labels_size) {
 381         ctx->labels = heap_alloc(8 * sizeof(*ctx->labels));
 382         if(!ctx->labels)
 383             return 0;
 384         ctx->labels_size = 8;
 385     }else if(ctx->labels_size == ctx->labels_cnt) {
 386         unsigned *new_labels;
 387
 388         new_labels = heap_realloc(ctx->labels, 2*ctx->labels_size*sizeof(*ctx->labels));
 389         if(!new_labels)
 390             return 0;
 391
 392         ctx->labels = new_labels;
 393         ctx->labels_size *= 2;
 394     }
 395
 396     return ctx->labels_cnt++ | LABEL_FLAG;
 397 }
 398
 399 static void label_set_addr(compiler_ctx_t *ctx, unsigned label)
 400 {
 401     assert(label & LABEL_FLAG);
 402     ctx->labels[label & ~LABEL_FLAG] = ctx->code_off;
 403 }
 404
 405 static inline BOOL is_memberid_expr(expression_type_t type)
 406 {
 407     return type == EXPR_IDENT || type == EXPR_MEMBER || type == EXPR_ARRAY;
 408 }
 409
 410 static HRESULT compile_memberid_expression(compiler_ctx_t *ctx, expression_t *expr, unsigned flags)
 411 {
 412     HRESULT hres = S_OK;
 413
 414     switch(expr->type) {
 415     case EXPR_IDENT: {
 416         identifier_expression_t *ident_expr = (identifier_expression_t*)expr;
 417
 418         hres = push_instr_bstr_uint(ctx, OP_identid, ident_expr->identifier, flags);
 419         break;
 420     }
 421     case EXPR_ARRAY: {
 422         binary_expression_t *array_expr = (binary_expression_t*)expr;
 423
 424         hres = compile_expression(ctx, array_expr->expression1, TRUE);
 425         if(FAILED(hres))
 426             return hres;
 427
 428         hres = compile_expression(ctx, array_expr->expression2, TRUE);
 429         if(FAILED(hres))
 430             return hres;
 431
 432         hres = push_instr_uint(ctx, OP_memberid, flags);
 433         break;
 434     }
 435     case EXPR_MEMBER: {
 436         member_expression_t *member_expr = (member_expression_t*)expr;
 437
 438         hres = compile_expression(ctx, member_expr->expression, TRUE);
 439         if(FAILED(hres))
 440             return hres;
 441
 442         /* FIXME: Potential optimization */
 443         hres = push_instr_str(ctx, OP_str, member_expr->identifier);
 444         if(FAILED(hres))
 445             return hres;
 446
 447         hres = push_instr_uint(ctx, OP_memberid, flags);
 448         break;
 449     }
 450     DEFAULT_UNREACHABLE;
 451     }
 452
 453     return hres;
 454 }
 455
 456 static HRESULT compile_increment_expression(compiler_ctx_t *ctx, unary_expression_t *expr, jsop_t op, int n)
 457 {
 458     HRESULT hres;
 459
 460     if(!is_memberid_expr(expr->expression->type)) {
 461         hres = compile_expression(ctx, expr->expression, TRUE);
 462         if(FAILED(hres))
 463             return hres;
 464
 465         return push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
 466     }
 467
 468     hres = compile_memberid_expression(ctx, expr->expression, fdexNameEnsure);
 469     if(FAILED(hres))
 470         return hres;
 471
 472     return push_instr_int(ctx, op, n);
 473 }
 474
 475 /* ECMA-262 3rd Edition    11.14 */
 476 static HRESULT compile_comma_expression(compiler_ctx_t *ctx, binary_expression_t *expr, BOOL emit_ret)
 477 {
 478     HRESULT hres;
 479
 480     hres = compile_expression(ctx, expr->expression1, FALSE);
 481     if(FAILED(hres))
 482         return hres;
 483
 484     return compile_expression(ctx, expr->expression2, emit_ret);
 485 }
 486
 487 /* ECMA-262 3rd Edition    11.11 */
 488 static HRESULT compile_logical_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
 489 {
 490     unsigned instr;
 491     HRESULT hres;
 492
 493     hres = compile_expression(ctx, expr->expression1, TRUE);
 494     if(FAILED(hres))
 495         return hres;
 496
 497     instr = push_instr(ctx, op);
 498     if(!instr)
 499         return E_OUTOFMEMORY;
 500
 501     hres = compile_expression(ctx, expr->expression2, TRUE);
 502     if(FAILED(hres))
 503         return hres;
 504
 505     set_arg_uint(ctx, instr, ctx->code_off);
 506     return S_OK;
 507 }
 508
 509 /* ECMA-262 3rd Edition    11.12 */
 510 static HRESULT compile_conditional_expression(compiler_ctx_t *ctx, conditional_expression_t *expr)
 511 {
 512     unsigned jmp_false, jmp_end;
 513     HRESULT hres;
 514
 515     hres = compile_expression(ctx, expr->expression, TRUE);
 516     if(FAILED(hres))
 517         return hres;
 518
 519     jmp_false = push_instr(ctx, OP_cnd_z);
 520     if(!jmp_false)
 521         return E_OUTOFMEMORY;
 522
 523     hres = compile_expression(ctx, expr->true_expression, TRUE);
 524     if(FAILED(hres))
 525         return hres;
 526
 527     jmp_end = push_instr(ctx, OP_jmp);
 528     if(!jmp_end)
 529         return E_OUTOFMEMORY;
 530
 531     set_arg_uint(ctx, jmp_false, ctx->code_off);
 532     hres = push_instr_uint(ctx, OP_pop, 1);
 533     if(FAILED(hres))
 534         return hres;
 535
 536     hres = compile_expression(ctx, expr->false_expression, TRUE);
 537     if(FAILED(hres))
 538         return hres;
 539
 540     set_arg_uint(ctx, jmp_end, ctx->code_off);
 541     return S_OK;
 542 }
 543
 544 static HRESULT compile_new_expression(compiler_ctx_t *ctx, call_expression_t *expr)
 545 {
 546     unsigned arg_cnt = 0;
 547     argument_t *arg;
 548     HRESULT hres;
 549
 550     hres = compile_expression(ctx, expr->expression, TRUE);
 551     if(FAILED(hres))
 552         return hres;
 553
 554     for(arg = expr->argument_list; arg; arg = arg->next) {
 555         hres = compile_expression(ctx, arg->expr, TRUE);
 556         if(FAILED(hres))
 557             return hres;
 558         arg_cnt++;
 559     }
 560
 561     return push_instr_uint(ctx, OP_new, arg_cnt);
 562 }
 563
 564 static HRESULT compile_call_expression(compiler_ctx_t *ctx, call_expression_t *expr, BOOL emit_ret)
 565 {
 566     unsigned arg_cnt = 0;
 567     argument_t *arg;
 568     unsigned instr;
 569     jsop_t op;
 570     HRESULT hres;
 571
 572     if(is_memberid_expr(expr->expression->type)) {
 573         op = OP_call_member;
 574         hres = compile_memberid_expression(ctx, expr->expression, 0);
 575     }else {
 576         op = OP_call;
 577         hres = compile_expression(ctx, expr->expression, TRUE);
 578     }
 579
 580     if(FAILED(hres))
 581         return hres;
 582
 583     for(arg = expr->argument_list; arg; arg = arg->next) {
 584         hres = compile_expression(ctx, arg->expr, TRUE);
 585         if(FAILED(hres))
 586             return hres;
 587         arg_cnt++;
 588     }
 589
 590     instr = push_instr(ctx, op);
 591     if(!instr)
 592         return E_OUTOFMEMORY;
 593
 594     instr_ptr(ctx, instr)->u.arg[0].uint = arg_cnt;
 595     instr_ptr(ctx, instr)->u.arg[1].lng = emit_ret;
 596     return S_OK;
 597 }
 598
 599 static HRESULT compile_delete_expression(compiler_ctx_t *ctx, unary_expression_t *expr)
 600 {
 601     HRESULT hres;
 602
 603     switch(expr->expression->type) {
 604     case EXPR_ARRAY: {
 605         binary_expression_t *array_expr = (binary_expression_t*)expr->expression;
 606
 607         hres = compile_expression(ctx, array_expr->expression1, TRUE);
 608         if(FAILED(hres))
 609             return hres;
 610
 611         hres = compile_expression(ctx, array_expr->expression2, TRUE);
 612         if(FAILED(hres))
 613             return hres;
 614
 615         if(!push_instr(ctx, OP_delete))
 616             return E_OUTOFMEMORY;
 617         break;
 618     }
 619     case EXPR_MEMBER: {
 620         member_expression_t *member_expr = (member_expression_t*)expr->expression;
 621
 622         hres = compile_expression(ctx, member_expr->expression, TRUE);
 623         if(FAILED(hres))
 624             return hres;
 625
 626         /* FIXME: Potential optimization */
 627         hres = push_instr_str(ctx, OP_str, member_expr->identifier);
 628         if(FAILED(hres))
 629             return hres;
 630
 631         if(!push_instr(ctx, OP_delete))
 632             return E_OUTOFMEMORY;
 633         break;
 634     }
 635     case EXPR_IDENT:
 636         return push_instr_bstr(ctx, OP_delete_ident, ((identifier_expression_t*)expr->expression)->identifier);
 637     default: {
 638         const WCHAR fixmeW[] = {'F','I','X','M','E',0};
 639
 640         WARN("invalid delete, unimplemented exception message\n");
 641
 642         hres = compile_expression(ctx, expr->expression, TRUE);
 643         if(FAILED(hres))
 644             return hres;
 645
 646         return push_instr_uint_str(ctx, OP_throw_type, JS_E_INVALID_DELETE, fixmeW);
 647     }
 648     }
 649
 650     return S_OK;
 651 }
 652
 653 static HRESULT compile_assign_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
 654 {
 655     BOOL use_throw_path = FALSE;
 656     unsigned arg_cnt = 0;
 657     HRESULT hres;
 658
 659     if(expr->expression1->type == EXPR_CALL) {
 660         call_expression_t *call_expr = (call_expression_t*)expr->expression1;
 661         argument_t *arg;
 662
 663         if(op != OP_LAST) {
 664             FIXME("op %d not supported on parametrized assign expressions\n", op);
 665             return E_NOTIMPL;
 666         }
 667
 668         if(is_memberid_expr(call_expr->expression->type) && call_expr->argument_list) {
 669             hres = compile_memberid_expression(ctx, call_expr->expression, fdexNameEnsure);
 670             if(FAILED(hres))
 671                 return hres;
 672
 673             for(arg = call_expr->argument_list; arg; arg = arg->next) {
 674                 hres = compile_expression(ctx, arg->expr, TRUE);
 675                 if(FAILED(hres))
 676                     return hres;
 677                 arg_cnt++;
 678             }
 679         }else {
 680             use_throw_path = TRUE;
 681         }
 682     }else if(is_memberid_expr(expr->expression1->type)) {
 683         hres = compile_memberid_expression(ctx, expr->expression1, fdexNameEnsure);
 684         if(FAILED(hres))
 685             return hres;
 686     }else {
 687         use_throw_path = TRUE;
 688     }
 689
 690     if(use_throw_path) {
 691         /* Illegal assignment: evaluate and throw */
 692         hres = compile_expression(ctx, expr->expression1, TRUE);
 693         if(FAILED(hres))
 694             return hres;
 695
 696         hres = compile_expression(ctx, expr->expression2, TRUE);
 697         if(FAILED(hres))
 698             return hres;
 699
 700         if(op != OP_LAST && !push_instr(ctx, op))
 701             return E_OUTOFMEMORY;
 702
 703         return push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
 704     }
 705
 706     if(op != OP_LAST && !push_instr(ctx, OP_refval))
 707         return E_OUTOFMEMORY;
 708
 709     hres = compile_expression(ctx, expr->expression2, TRUE);
 710     if(FAILED(hres))
 711         return hres;
 712
 713     if(op != OP_LAST && !push_instr(ctx, op))
 714         return E_OUTOFMEMORY;
 715
 716     if(arg_cnt)
 717         return push_instr_uint(ctx, OP_assign_call, arg_cnt);
 718
 719     if(!push_instr(ctx, OP_assign))
 720         return E_OUTOFMEMORY;
 721
 722     return S_OK;
 723 }
 724
 725 static HRESULT compile_typeof_expression(compiler_ctx_t *ctx, unary_expression_t *expr)
 726 {
 727     jsop_t op;
 728     HRESULT hres;
 729
 730     if(is_memberid_expr(expr->expression->type)) {
 731         if(expr->expression->type == EXPR_IDENT)
 732             return push_instr_bstr(ctx, OP_typeofident, ((identifier_expression_t*)expr->expression)->identifier);
 733
 734         op = OP_typeofid;
 735         hres = compile_memberid_expression(ctx, expr->expression, 0);
 736     }else {
 737         op = OP_typeof;
 738         hres = compile_expression(ctx, expr->expression, TRUE);
 739     }
 740     if(FAILED(hres))
 741         return hres;
 742
 743     return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
 744 }
 745
 746 static HRESULT compile_literal(compiler_ctx_t *ctx, literal_t *literal)
 747 {
 748     switch(literal->type) {
 749     case LT_BOOL:
 750         return push_instr_int(ctx, OP_bool, literal->u.bval);
 751     case LT_DOUBLE:
 752         return push_instr_double(ctx, OP_double, literal->u.dval);
 753     case LT_NULL:
 754         return push_instr(ctx, OP_null) ? S_OK : E_OUTOFMEMORY;
 755     case LT_STRING:
 756         return push_instr_str(ctx, OP_str, literal->u.wstr);
 757     case LT_REGEXP: {
 758         unsigned instr;
 759         jsstr_t *str;
 760
 761         str = compiler_alloc_string_len(ctx, literal->u.regexp.str, literal->u.regexp.str_len);
 762         if(!str)
 763             return E_OUTOFMEMORY;
 764
 765         instr = push_instr(ctx, OP_regexp);
 766         if(!instr)
 767             return E_OUTOFMEMORY;
 768
 769         instr_ptr(ctx, instr)->u.arg[0].str = str;
 770         instr_ptr(ctx, instr)->u.arg[1].uint = literal->u.regexp.flags;
 771         return S_OK;
 772     }
 773     DEFAULT_UNREACHABLE;
 774     }
 775     return E_FAIL;
 776 }
 777
 778 static HRESULT literal_as_bstr(compiler_ctx_t *ctx, literal_t *literal, BSTR *str)
 779 {
 780     switch(literal->type) {
 781     case LT_STRING:
 782         *str = compiler_alloc_bstr(ctx, literal->u.wstr);
 783         break;
 784     case LT_DOUBLE: {
 785         jsstr_t *jsstr;
 786         HRESULT hres;
 787
 788         hres = double_to_string(literal->u.dval, &jsstr);
 789         if(FAILED(hres))
 790             return hres;
 791
 792         *str = compiler_alloc_bstr_len(ctx, NULL, jsstr_length(jsstr));
 793         if(*str)
 794             jsstr_flush(jsstr, *str);
 795         jsstr_release(jsstr);
 796         break;
 797     }
 798     DEFAULT_UNREACHABLE;
 799     }
 800
 801     return *str ? S_OK : E_OUTOFMEMORY;
 802 }
 803
 804 static HRESULT compile_array_literal(compiler_ctx_t *ctx, array_literal_expression_t *expr)
 805 {
 806     unsigned i, elem_cnt = expr->length;
 807     array_element_t *iter;
 808     HRESULT hres;
 809
 810     for(iter = expr->element_list; iter; iter = iter->next) {
 811         elem_cnt += iter->elision+1;
 812
 813         for(i=0; i < iter->elision; i++) {
 814             if(!push_instr(ctx, OP_undefined))
 815                 return E_OUTOFMEMORY;
 816         }
 817
 818         hres = compile_expression(ctx, iter->expr, TRUE);
 819         if(FAILED(hres))
 820             return hres;
 821     }
 822
 823     for(i=0; i < expr->length; i++) {
 824         if(!push_instr(ctx, OP_undefined))
 825             return E_OUTOFMEMORY;
 826     }
 827
 828     return push_instr_uint(ctx, OP_carray, elem_cnt);
 829 }
 830
 831 static HRESULT compile_object_literal(compiler_ctx_t *ctx, property_value_expression_t *expr)
 832 {
 833     prop_val_t *iter;
 834     unsigned instr;
 835     BSTR name;
 836     HRESULT hres;
 837
 838     if(!push_instr(ctx, OP_new_obj))
 839         return E_OUTOFMEMORY;
 840
 841     for(iter = expr->property_list; iter; iter = iter->next) {
 842         hres = literal_as_bstr(ctx, iter->name, &name);
 843         if(FAILED(hres))
 844             return hres;
 845
 846         hres = compile_expression(ctx, iter->value, TRUE);
 847         if(FAILED(hres))
 848             return hres;
 849
 850         instr = push_instr(ctx, OP_obj_prop);
 851         if(!instr)
 852             return E_OUTOFMEMORY;
 853
 854         instr_ptr(ctx, instr)->u.arg->bstr = name;
 855     }
 856
 857     return S_OK;
 858 }
 859
 860 static HRESULT compile_function_expression(compiler_ctx_t *ctx, function_expression_t *expr)
 861 {
 862     ctx->func_tail = ctx->func_tail ? (ctx->func_tail->next = expr) : (ctx->func_head = expr);
 863
 864     /* FIXME: not exactly right */
 865     if(expr->identifier) {
 866         ctx->func->func_cnt++;
 867         return push_instr_bstr(ctx, OP_ident, expr->identifier);
 868     }
 869
 870     return push_instr_uint(ctx, OP_func, ctx->func->func_cnt++);
 871 }
 872
 873 static HRESULT compile_expression(compiler_ctx_t *ctx, expression_t *expr, BOOL emit_ret)
 874 {
 875     HRESULT hres;
 876
 877     switch(expr->type) {
 878     case EXPR_ADD:
 879         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_add);
 880         break;
 881     case EXPR_AND:
 882         hres = compile_logical_expression(ctx, (binary_expression_t*)expr, OP_cnd_z);
 883         break;
 884     case EXPR_ARRAY:
 885         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_array);
 886         break;
 887     case EXPR_ARRAYLIT:
 888         hres = compile_array_literal(ctx, (array_literal_expression_t*)expr);
 889         break;
 890     case EXPR_ASSIGN:
 891         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_LAST);
 892         break;
 893     case EXPR_ASSIGNADD:
 894         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_add);
 895         break;
 896     case EXPR_ASSIGNAND:
 897         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_and);
 898         break;
 899     case EXPR_ASSIGNSUB:
 900         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_sub);
 901         break;
 902     case EXPR_ASSIGNMUL:
 903         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_mul);
 904         break;
 905     case EXPR_ASSIGNDIV:
 906         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_div);
 907         break;
 908     case EXPR_ASSIGNMOD:
 909         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_mod);
 910         break;
 911     case EXPR_ASSIGNOR:
 912         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_or);
 913         break;
 914     case EXPR_ASSIGNLSHIFT:
 915         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_lshift);
 916         break;
 917     case EXPR_ASSIGNRSHIFT:
 918         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_rshift);
 919         break;
 920     case EXPR_ASSIGNRRSHIFT:
 921         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_rshift2);
 922         break;
 923     case EXPR_ASSIGNXOR:
 924         hres = compile_assign_expression(ctx, (binary_expression_t*)expr, OP_xor);
 925         break;
 926     case EXPR_BAND:
 927         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_and);
 928         break;
 929     case EXPR_BITNEG:
 930         hres = compile_unary_expression(ctx, (unary_expression_t*)expr, OP_bneg);
 931         break;
 932     case EXPR_BOR:
 933         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_or);
 934         break;
 935     case EXPR_CALL:
 936         return compile_call_expression(ctx, (call_expression_t*)expr, emit_ret);
 937     case EXPR_COMMA:
 938         return compile_comma_expression(ctx, (binary_expression_t*)expr, emit_ret);
 939     case EXPR_COND:
 940         hres = compile_conditional_expression(ctx, (conditional_expression_t*)expr);
 941         break;
 942     case EXPR_DELETE:
 943         hres = compile_delete_expression(ctx, (unary_expression_t*)expr);
 944         break;
 945     case EXPR_DIV:
 946         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_div);
 947         break;
 948     case EXPR_EQ:
 949         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eq);
 950         break;
 951     case EXPR_EQEQ:
 952         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eq2);
 953         break;
 954     case EXPR_FUNC:
 955         hres = compile_function_expression(ctx, (function_expression_t*)expr);
 956         break;
 957     case EXPR_GREATER:
 958         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gt);
 959         break;
 960     case EXPR_GREATEREQ:
 961         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gteq);
 962         break;
 963     case EXPR_IDENT:
 964         hres = push_instr_bstr(ctx, OP_ident, ((identifier_expression_t*)expr)->identifier);
 965         break;
 966     case EXPR_IN:
 967         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_in);
 968         break;
 969     case EXPR_INSTANCEOF:
 970         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_instanceof);
 971         break;
 972     case EXPR_LESS:
 973         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lt);
 974         break;
 975     case EXPR_LESSEQ:
 976         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lteq);
 977         break;
 978     case EXPR_LITERAL:
 979         hres = compile_literal(ctx, ((literal_expression_t*)expr)->literal);
 980         break;
 981     case EXPR_LOGNEG:
 982         hres = compile_unary_expression(ctx, (unary_expression_t*)expr, OP_neg);
 983         break;
 984     case EXPR_LSHIFT:
 985         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lshift);
 986         break;
 987     case EXPR_MEMBER:
 988         hres = compile_member_expression(ctx, (member_expression_t*)expr);
 989         break;
 990     case EXPR_MINUS:
 991         hres = compile_unary_expression(ctx, (unary_expression_t*)expr, OP_minus);
 992         break;
 993     case EXPR_MOD:
 994         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mod);
 995         break;
 996     case EXPR_MUL:
 997         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mul);
 998         break;
 999     case EXPR_NEW:
1000         hres = compile_new_expression(ctx, (call_expression_t*)expr);
1001         break;
1002     case EXPR_NOTEQ:
1003         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_neq);
1004         break;
1005     case EXPR_NOTEQEQ:
1006         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_neq2);
1007         break;
1008     case EXPR_OR:
1009         hres = compile_logical_expression(ctx, (binary_expression_t*)expr, OP_cnd_nz);
1010         break;
1011     case EXPR_PLUS:
1012         hres = compile_unary_expression(ctx, (unary_expression_t*)expr, OP_tonum);
1013         break;
1014     case EXPR_POSTDEC:
1015         hres = compile_increment_expression(ctx, (unary_expression_t*)expr, OP_postinc, -1);
1016         break;
1017     case EXPR_POSTINC:
1018         hres = compile_increment_expression(ctx, (unary_expression_t*)expr, OP_postinc, 1);
1019         break;
1020     case EXPR_PREDEC:
1021         hres = compile_increment_expression(ctx, (unary_expression_t*)expr, OP_preinc, -1);
1022         break;
1023     case EXPR_PREINC:
1024         hres = compile_increment_expression(ctx, (unary_expression_t*)expr, OP_preinc, 1);
1025         break;
1026     case EXPR_PROPVAL:
1027         hres = compile_object_literal(ctx, (property_value_expression_t*)expr);
1028         break;
1029     case EXPR_RSHIFT:
1030         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift);
1031         break;
1032     case EXPR_RRSHIFT:
1033         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift2);
1034         break;
1035     case EXPR_SUB:
1036         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_sub);
1037         break;
1038     case EXPR_THIS:
1039         return !emit_ret || push_instr(ctx, OP_this) ? S_OK : E_OUTOFMEMORY;
1040     case EXPR_TYPEOF:
1041         hres = compile_typeof_expression(ctx, (unary_expression_t*)expr);
1042         break;
1043     case EXPR_VOID:
1044         hres = compile_unary_expression(ctx, (unary_expression_t*)expr, OP_void);
1045         break;
1046     case EXPR_BXOR:
1047         hres = compile_binary_expression(ctx, (binary_expression_t*)expr, OP_xor);
1048         break;
1049     DEFAULT_UNREACHABLE;
1050     }
1051
1052     if(FAILED(hres))
1053         return hres;
1054
1055     return emit_ret ? S_OK : push_instr_uint(ctx, OP_pop, 1);
1056 }
1057
1058 static inline BOOL is_loop_statement(statement_type_t type)
1059 {
1060     return type == STAT_FOR || type == STAT_FORIN || type == STAT_WHILE;
1061 }
1062
1063 /* ECMA-262 3rd Edition    12.1 */
1064 static HRESULT compile_block_statement(compiler_ctx_t *ctx, statement_t *iter)
1065 {
1066     HRESULT hres;
1067
1068     while(iter) {
1069         hres = compile_statement(ctx, NULL, iter);
1070         if(FAILED(hres))
1071             return hres;
1072
1073         iter = iter->next;
1074     }
1075
1076     return S_OK;
1077 }
1078
1079 /* ECMA-262 3rd Edition    12.2 */
1080 static HRESULT compile_variable_list(compiler_ctx_t *ctx, variable_declaration_t *list)
1081 {
1082     variable_declaration_t *iter;
1083     HRESULT hres;
1084
1085     assert(list != NULL);
1086
1087     if(ctx->var_tail)
1088         ctx->var_tail->global_next = list;
1089     else
1090         ctx->var_head = list;
1091
1092     for(iter = list; iter; iter = iter->next) {
1093         ctx->func->var_cnt++;
1094         iter->global_next = iter->next;
1095         if(!iter->next)
1096             ctx->var_tail = iter;
1097
1098         if(!iter->expr)
1099             continue;
1100
1101         hres = compile_expression(ctx, iter->expr, TRUE);
1102         if(FAILED(hres))
1103             return hres;
1104
1105         hres = push_instr_bstr(ctx, OP_var_set, iter->identifier);
1106         if(FAILED(hres))
1107             return hres;
1108     }
1109
1110     return S_OK;
1111 }
1112
1113 /* ECMA-262 3rd Edition    12.2 */
1114 static HRESULT compile_var_statement(compiler_ctx_t *ctx, var_statement_t *stat)
1115 {
1116     return compile_variable_list(ctx, stat->variable_list);
1117 }
1118
1119 /* ECMA-262 3rd Edition    12.4 */
1120 static HRESULT compile_expression_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
1121 {
1122     HRESULT hres;
1123
1124     hres = compile_expression(ctx, stat->expr, ctx->from_eval);
1125     if(FAILED(hres))
1126         return hres;
1127
1128     return !ctx->from_eval || push_instr(ctx, OP_setret) ? S_OK : E_OUTOFMEMORY;
1129 }
1130
1131 /* ECMA-262 3rd Edition    12.5 */
1132 static HRESULT compile_if_statement(compiler_ctx_t *ctx, if_statement_t *stat)
1133 {
1134     unsigned jmp_else;
1135     HRESULT hres;
1136
1137     hres = compile_expression(ctx, stat->expr, TRUE);
1138     if(FAILED(hres))
1139         return hres;
1140
1141     jmp_else = push_instr(ctx, OP_jmp_z);
1142     if(!jmp_else)
1143         return E_OUTOFMEMORY;
1144
1145     hres = compile_statement(ctx, NULL, stat->if_stat);
1146     if(FAILED(hres))
1147         return hres;
1148
1149     if(stat->else_stat) {
1150         unsigned jmp_end;
1151
1152         jmp_end = push_instr(ctx, OP_jmp);
1153         if(!jmp_end)
1154             return E_OUTOFMEMORY;
1155
1156         set_arg_uint(ctx, jmp_else, ctx->code_off);
1157
1158         hres = compile_statement(ctx, NULL, stat->else_stat);
1159         if(FAILED(hres))
1160             return hres;
1161
1162         set_arg_uint(ctx, jmp_end, ctx->code_off);
1163     }else {
1164         set_arg_uint(ctx, jmp_else, ctx->code_off);
1165     }
1166
1167     return S_OK;
1168 }
1169
1170 /* ECMA-262 3rd Edition    12.6.2 */
1171 static HRESULT compile_while_statement(compiler_ctx_t *ctx, while_statement_t *stat)
1172 {
1173     statement_ctx_t stat_ctx = {0, FALSE, FALSE};
1174     unsigned jmp_off;
1175     HRESULT hres;
1176
1177     stat_ctx.break_label = alloc_label(ctx);
1178     if(!stat_ctx.break_label)
1179         return E_OUTOFMEMORY;
1180
1181     stat_ctx.continue_label = alloc_label(ctx);
1182     if(!stat_ctx.continue_label)
1183         return E_OUTOFMEMORY;
1184
1185     jmp_off = ctx->code_off;
1186
1187     if(!stat->do_while) {
1188         label_set_addr(ctx, stat_ctx.continue_label);
1189         hres = compile_expression(ctx, stat->expr, TRUE);
1190         if(FAILED(hres))
1191             return hres;
1192
1193         hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
1194         if(FAILED(hres))
1195             return hres;
1196     }
1197
1198     hres = compile_statement(ctx, &stat_ctx, stat->statement);
1199     if(FAILED(hres))
1200         return hres;
1201
1202     if(stat->do_while) {
1203         label_set_addr(ctx, stat_ctx.continue_label);
1204         hres = compile_expression(ctx, stat->expr, TRUE);
1205         if(FAILED(hres))
1206             return hres;
1207
1208         hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
1209         if(FAILED(hres))
1210             return hres;
1211     }
1212
1213     hres = push_instr_uint(ctx, OP_jmp, jmp_off);
1214     if(FAILED(hres))
1215         return hres;
1216
1217     label_set_addr(ctx, stat_ctx.break_label);
1218     return S_OK;
1219 }
1220
1221 /* ECMA-262 3rd Edition    12.6.3 */
1222 static HRESULT compile_for_statement(compiler_ctx_t *ctx, for_statement_t *stat)
1223 {
1224     statement_ctx_t stat_ctx = {0, FALSE, FALSE};
1225     unsigned expr_off;
1226     HRESULT hres;
1227
1228     if(stat->variable_list) {
1229         hres = compile_variable_list(ctx, stat->variable_list);
1230         if(FAILED(hres))
1231             return hres;
1232     }else if(stat->begin_expr) {
1233         hres = compile_expression(ctx, stat->begin_expr, FALSE);
1234         if(FAILED(hres))
1235             return hres;
1236     }
1237
1238     stat_ctx.break_label = alloc_label(ctx);
1239     if(!stat_ctx.break_label)
1240         return E_OUTOFMEMORY;
1241
1242     stat_ctx.continue_label = alloc_label(ctx);
1243     if(!stat_ctx.continue_label)
1244         return E_OUTOFMEMORY;
1245
1246     expr_off = ctx->code_off;
1247
1248     if(stat->expr) {
1249         hres = compile_expression(ctx, stat->expr, TRUE);
1250         if(FAILED(hres))
1251             return hres;
1252
1253         hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
1254         if(FAILED(hres))
1255             return hres;
1256     }
1257
1258     hres = compile_statement(ctx, &stat_ctx, stat->statement);
1259     if(FAILED(hres))
1260         return hres;
1261
1262     label_set_addr(ctx, stat_ctx.continue_label);
1263
1264     if(stat->end_expr) {
1265         hres = compile_expression(ctx, stat->end_expr, FALSE);
1266         if(FAILED(hres))
1267             return hres;
1268     }
1269
1270     hres = push_instr_uint(ctx, OP_jmp, expr_off);
1271     if(FAILED(hres))
1272         return hres;
1273
1274     label_set_addr(ctx, stat_ctx.break_label);
1275     return S_OK;
1276 }
1277
1278 /* ECMA-262 3rd Edition    12.6.4 */
1279 static HRESULT compile_forin_statement(compiler_ctx_t *ctx, forin_statement_t *stat)
1280 {
1281     statement_ctx_t stat_ctx = {4, FALSE, FALSE};
1282     HRESULT hres;
1283
1284     if(stat->variable) {
1285         hres = compile_variable_list(ctx, stat->variable);
1286         if(FAILED(hres))
1287             return hres;
1288     }
1289
1290     stat_ctx.break_label = alloc_label(ctx);
1291     if(!stat_ctx.break_label)
1292         return E_OUTOFMEMORY;
1293
1294     stat_ctx.continue_label = alloc_label(ctx);
1295     if(!stat_ctx.continue_label)
1296         return E_OUTOFMEMORY;
1297
1298     hres = compile_expression(ctx, stat->in_expr, TRUE);
1299     if(FAILED(hres))
1300         return hres;
1301
1302     if(stat->variable) {
1303         hres = push_instr_bstr_uint(ctx, OP_identid, stat->variable->identifier, fdexNameEnsure);
1304         if(FAILED(hres))
1305             return hres;
1306     }else if(is_memberid_expr(stat->expr->type)) {
1307         hres = compile_memberid_expression(ctx, stat->expr, fdexNameEnsure);
1308         if(FAILED(hres))
1309             return hres;
1310     }else {
1311         hres = push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
1312         if(FAILED(hres))
1313             return hres;
1314
1315         /* FIXME: compile statement anyways when we depend on compiler to check errors */
1316         return S_OK;
1317     }
1318
1319     hres = push_instr_int(ctx, OP_int, DISPID_STARTENUM);
1320     if(FAILED(hres))
1321         return hres;
1322
1323     label_set_addr(ctx, stat_ctx.continue_label);
1324     hres = push_instr_uint(ctx, OP_forin, stat_ctx.break_label);
1325     if(FAILED(hres))
1326         return E_OUTOFMEMORY;
1327
1328     hres = compile_statement(ctx, &stat_ctx, stat->statement);
1329     if(FAILED(hres))
1330         return hres;
1331
1332     hres = push_instr_uint(ctx, OP_jmp, stat_ctx.continue_label);
1333     if(FAILED(hres))
1334         return hres;
1335
1336     label_set_addr(ctx, stat_ctx.break_label);
1337     return S_OK;
1338 }
1339
1340 static HRESULT pop_to_stat(compiler_ctx_t *ctx, BOOL var_stack, BOOL scope_stack, statement_ctx_t *stat_ctx)
1341 {
1342     unsigned stack_pop = 0;
1343     statement_ctx_t *iter;
1344
1345     for(iter = ctx->stat_ctx; iter != stat_ctx; iter = iter->next) {
1346         if(scope_stack) {
1347             if(iter->using_scope && !push_instr(ctx, OP_pop_scope))
1348                 return E_OUTOFMEMORY;
1349             if(iter->using_except && !push_instr(ctx, OP_pop_except))
1350                 return E_OUTOFMEMORY;
1351         }
1352         stack_pop += iter->stack_use;
1353     }
1354
1355     if(var_stack && stack_pop) {
1356         HRESULT hres;
1357
1358         hres = push_instr_uint(ctx, OP_pop, stack_pop);
1359         if(FAILED(hres))
1360             return hres;
1361     }
1362
1363     return S_OK;
1364 }
1365
1366 /* ECMA-262 3rd Edition    12.7 */
1367 static HRESULT compile_continue_statement(compiler_ctx_t *ctx, branch_statement_t *stat)
1368 {
1369     statement_ctx_t *pop_ctx;
1370     HRESULT hres;
1371
1372     if(stat->identifier) {
1373         statement_t *label_stat;
1374         statement_ctx_t *iter;
1375
1376         pop_ctx = NULL;
1377
1378         for(iter = ctx->stat_ctx; iter; iter = iter->next) {
1379             if(iter->continue_label)
1380                 pop_ctx = iter;
1381             if(iter->labelled_stat && !strcmpW(iter->labelled_stat->identifier, stat->identifier))
1382                 break;
1383         }
1384
1385         if(!iter) {
1386             WARN("Label not found\n");
1387             return JS_E_LABEL_NOT_FOUND;
1388         }
1389
1390         /* Labelled continue are allowed only on loops */
1391         for(label_stat = iter->labelled_stat->statement;
1392             label_stat->type == STAT_LABEL;
1393             label_stat = ((labelled_statement_t*)label_stat)->statement);
1394         if(!is_loop_statement(label_stat->type)) {
1395             WARN("Label is not a loop\n");
1396             return JS_E_INVALID_CONTINUE;
1397         }
1398
1399         assert(pop_ctx != NULL);
1400     }else {
1401         for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
1402             if(pop_ctx->continue_label)
1403                 break;
1404         }
1405
1406         if(!pop_ctx) {
1407             WARN("continue outside loop\n");
1408             return JS_E_INVALID_CONTINUE;
1409         }
1410     }
1411
1412     hres = pop_to_stat(ctx, TRUE, TRUE, pop_ctx);
1413     if(FAILED(hres))
1414         return hres;
1415
1416     return push_instr_uint(ctx, OP_jmp, pop_ctx->continue_label);
1417 }
1418
1419 /* ECMA-262 3rd Edition    12.8 */
1420 static HRESULT compile_break_statement(compiler_ctx_t *ctx, branch_statement_t *stat)
1421 {
1422     statement_ctx_t *pop_ctx;
1423     HRESULT hres;
1424
1425     if(stat->identifier) {
1426         for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
1427             if(pop_ctx->labelled_stat && !strcmpW(pop_ctx->labelled_stat->identifier, stat->identifier)) {
1428                 assert(pop_ctx->break_label);
1429                 break;
1430             }
1431         }
1432
1433         if(!pop_ctx) {
1434             WARN("Label not found\n");
1435             return JS_E_LABEL_NOT_FOUND;
1436         }
1437     }else {
1438         for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
1439             if(pop_ctx->break_label && !pop_ctx->labelled_stat)
1440                 break;
1441         }
1442
1443         if(!pop_ctx) {
1444             WARN("Break outside loop\n");
1445             return JS_E_INVALID_BREAK;
1446         }
1447     }
1448
1449     hres = pop_to_stat(ctx, TRUE, TRUE, pop_ctx->next);
1450     if(FAILED(hres))
1451         return hres;
1452
1453     return push_instr_uint(ctx, OP_jmp, pop_ctx->break_label);
1454 }
1455
1456 /* ECMA-262 3rd Edition    12.9 */
1457 static HRESULT compile_return_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
1458 {
1459     HRESULT hres;
1460
1461     if(ctx->from_eval) {
1462         WARN("misplaced return statement\n");
1463         return JS_E_MISPLACED_RETURN;
1464     }
1465
1466     hres = pop_to_stat(ctx, TRUE, FALSE, NULL);
1467     if(FAILED(hres))
1468         return hres;
1469
1470     if(stat->expr) {
1471         hres = compile_expression(ctx, stat->expr, TRUE);
1472         if(FAILED(hres))
1473             return hres;
1474         if(!push_instr(ctx, OP_setret))
1475             return E_OUTOFMEMORY;
1476     }
1477
1478     hres = pop_to_stat(ctx, FALSE, TRUE, NULL);
1479     if(FAILED(hres))
1480         return hres;
1481
1482     return push_instr(ctx, OP_ret) ? S_OK : E_OUTOFMEMORY;
1483 }
1484
1485 /* ECMA-262 3rd Edition    12.10 */
1486 static HRESULT compile_with_statement(compiler_ctx_t *ctx, with_statement_t *stat)
1487 {
1488     statement_ctx_t stat_ctx = {0, TRUE, FALSE};
1489     HRESULT hres;
1490
1491     hres = compile_expression(ctx, stat->expr, TRUE);
1492     if(FAILED(hres))
1493         return hres;
1494
1495     if(!push_instr(ctx, OP_push_scope))
1496         return E_OUTOFMEMORY;
1497
1498     hres = compile_statement(ctx, &stat_ctx, stat->statement);
1499     if(FAILED(hres))
1500         return hres;
1501
1502     if(!push_instr(ctx, OP_pop_scope))
1503         return E_OUTOFMEMORY;
1504
1505     return S_OK;
1506 }
1507
1508 /* ECMA-262 3rd Edition    12.10 */
1509 static HRESULT compile_labelled_statement(compiler_ctx_t *ctx, labelled_statement_t *stat)
1510 {
1511     statement_ctx_t stat_ctx = {0, FALSE, FALSE, 0, 0, stat}, *iter;
1512     HRESULT hres;
1513
1514     for(iter = ctx->stat_ctx; iter; iter = iter->next) {
1515         if(iter->labelled_stat && !strcmpW(iter->labelled_stat->identifier, stat->identifier)) {
1516             WARN("Label %s redefined\n", debugstr_w(stat->identifier));
1517             return JS_E_LABEL_REDEFINED;
1518         }
1519     }
1520
1521     /* Labelled breaks are allowed for any labelled statements, not only loops (violating spec) */
1522     stat_ctx.break_label = alloc_label(ctx);
1523     if(!stat_ctx.break_label)
1524         return E_OUTOFMEMORY;
1525
1526     hres = compile_statement(ctx, &stat_ctx, stat->statement);
1527     if(FAILED(hres))
1528         return hres;
1529
1530     label_set_addr(ctx, stat_ctx.break_label);
1531     return S_OK;
1532 }
1533
1534 /* ECMA-262 3rd Edition    12.13 */
1535 static HRESULT compile_switch_statement(compiler_ctx_t *ctx, switch_statement_t *stat)
1536 {
1537     statement_ctx_t stat_ctx = {0, FALSE, FALSE};
1538     unsigned case_cnt = 0, *case_jmps, i, default_jmp;
1539     BOOL have_default = FALSE;
1540     statement_t *stat_iter;
1541     case_clausule_t *iter;
1542     HRESULT hres;
1543
1544     hres = compile_expression(ctx, stat->expr, TRUE);
1545     if(FAILED(hres))
1546         return hres;
1547
1548     stat_ctx.break_label = alloc_label(ctx);
1549     if(!stat_ctx.break_label)
1550         return E_OUTOFMEMORY;
1551
1552     for(iter = stat->case_list; iter; iter = iter->next) {
1553         if(iter->expr)
1554             case_cnt++;
1555     }
1556
1557     case_jmps = heap_alloc(case_cnt * sizeof(*case_jmps));
1558     if(!case_jmps)
1559         return E_OUTOFMEMORY;
1560
1561     i = 0;
1562     for(iter = stat->case_list; iter; iter = iter->next) {
1563         if(!iter->expr) {
1564             have_default = TRUE;
1565             continue;
1566         }
1567
1568         hres = compile_expression(ctx, iter->expr, TRUE);
1569         if(FAILED(hres))
1570             break;
1571
1572         case_jmps[i] = push_instr(ctx, OP_case);
1573         if(!case_jmps[i]) {
1574             hres = E_OUTOFMEMORY;
1575             break;
1576         }
1577         i++;
1578     }
1579
1580     if(SUCCEEDED(hres)) {
1581         hres = push_instr_uint(ctx, OP_pop, 1);
1582         if(SUCCEEDED(hres)) {
1583             default_jmp = push_instr(ctx, OP_jmp);
1584             if(!default_jmp)
1585                 hres = E_OUTOFMEMORY;
1586         }
1587     }
1588
1589     if(FAILED(hres)) {
1590         heap_free(case_jmps);
1591         return hres;
1592     }
1593
1594     i = 0;
1595     for(iter = stat->case_list; iter; iter = iter->next) {
1596         while(iter->next && iter->next->stat == iter->stat) {
1597             set_arg_uint(ctx, iter->expr ? case_jmps[i++] : default_jmp, ctx->code_off);
1598             iter = iter->next;
1599         }
1600
1601         set_arg_uint(ctx, iter->expr ? case_jmps[i++] : default_jmp, ctx->code_off);
1602
1603         for(stat_iter = iter->stat; stat_iter && (!iter->next || iter->next->stat != stat_iter);
1604             stat_iter = stat_iter->next) {
1605             hres = compile_statement(ctx, &stat_ctx, stat_iter);
1606             if(FAILED(hres))
1607                 break;
1608         }
1609         if(FAILED(hres))
1610             break;
1611     }
1612
1613     heap_free(case_jmps);
1614     if(FAILED(hres))
1615         return hres;
1616     assert(i == case_cnt);
1617
1618     if(!have_default) {
1619         hres = push_instr_uint(ctx, OP_jmp, stat_ctx.break_label);
1620         if(FAILED(hres))
1621             return hres;
1622         set_arg_uint(ctx, default_jmp, ctx->code_off);
1623     }
1624
1625     label_set_addr(ctx, stat_ctx.break_label);
1626     return S_OK;
1627 }
1628
1629 /* ECMA-262 3rd Edition    12.13 */
1630 static HRESULT compile_throw_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
1631 {
1632     HRESULT hres;
1633
1634     hres = compile_expression(ctx, stat->expr, TRUE);
1635     if(FAILED(hres))
1636         return hres;
1637
1638     return push_instr(ctx, OP_throw) ? S_OK : E_OUTOFMEMORY;
1639 }
1640
1641 /* ECMA-262 3rd Edition    12.14 */
1642 static HRESULT compile_try_statement(compiler_ctx_t *ctx, try_statement_t *stat)
1643 {
1644     statement_ctx_t try_ctx = {0, FALSE, TRUE}, catch_ctx = {0, TRUE, FALSE};
1645     statement_ctx_t finally_ctx = {2, FALSE, FALSE};
1646     unsigned push_except;
1647     BSTR ident;
1648     HRESULT hres;
1649
1650     push_except = push_instr(ctx, OP_push_except);
1651     if(!push_except)
1652         return E_OUTOFMEMORY;
1653
1654     if(stat->catch_block) {
1655         ident = compiler_alloc_bstr(ctx, stat->catch_block->identifier);
1656         if(!ident)
1657             return E_OUTOFMEMORY;
1658     }else {
1659         ident = NULL;
1660     }
1661
1662     instr_ptr(ctx, push_except)->u.arg[1].bstr = ident;
1663
1664     if(!stat->catch_block)
1665         try_ctx.stack_use = 2;
1666
1667     hres = compile_statement(ctx, &try_ctx, stat->try_statement);
1668     if(FAILED(hres))
1669         return hres;
1670
1671     if(!push_instr(ctx, OP_pop_except))
1672         return E_OUTOFMEMORY;
1673
1674     if(stat->catch_block) {
1675         unsigned jmp_finally;
1676
1677         jmp_finally = push_instr(ctx, OP_jmp);
1678         if(!jmp_finally)
1679             return E_OUTOFMEMORY;
1680
1681         instr_ptr(ctx, push_except)->u.arg[0].uint = ctx->code_off;
1682
1683         hres = compile_statement(ctx, &catch_ctx, stat->catch_block->statement);
1684         if(FAILED(hres))
1685             return hres;
1686
1687         if(!push_instr(ctx, OP_pop_scope))
1688             return E_OUTOFMEMORY;
1689
1690         set_arg_uint(ctx, jmp_finally, ctx->code_off);
1691     }else {
1692         set_arg_uint(ctx, push_except, ctx->code_off);
1693     }
1694
1695     if(stat->finally_statement) {
1696         hres = compile_statement(ctx, stat->catch_block ? NULL : &finally_ctx, stat->finally_statement);
1697         if(FAILED(hres))
1698             return hres;
1699
1700         if(!stat->catch_block && !push_instr(ctx, OP_end_finally))
1701             return E_OUTOFMEMORY;
1702     }
1703
1704     return S_OK;
1705 }
1706
1707 static HRESULT compile_statement(compiler_ctx_t *ctx, statement_ctx_t *stat_ctx, statement_t *stat)
1708 {
1709     HRESULT hres;
1710
1711     if(stat_ctx) {
1712         stat_ctx->next = ctx->stat_ctx;
1713         ctx->stat_ctx = stat_ctx;
1714     }
1715
1716     switch(stat->type) {
1717     case STAT_BLOCK:
1718         hres = compile_block_statement(ctx, ((block_statement_t*)stat)->stat_list);
1719         break;
1720     case STAT_BREAK:
1721         hres = compile_break_statement(ctx, (branch_statement_t*)stat);
1722         break;
1723     case STAT_CONTINUE:
1724         hres = compile_continue_statement(ctx, (branch_statement_t*)stat);
1725         break;
1726     case STAT_EMPTY:
1727         /* nothing to do */
1728         hres = S_OK;
1729         break;
1730     case STAT_EXPR:
1731         hres = compile_expression_statement(ctx, (expression_statement_t*)stat);
1732         break;
1733     case STAT_FOR:
1734         hres = compile_for_statement(ctx, (for_statement_t*)stat);
1735         break;
1736     case STAT_FORIN:
1737         hres = compile_forin_statement(ctx, (forin_statement_t*)stat);
1738         break;
1739     case STAT_IF:
1740         hres = compile_if_statement(ctx, (if_statement_t*)stat);
1741         break;
1742     case STAT_LABEL:
1743         hres = compile_labelled_statement(ctx, (labelled_statement_t*)stat);
1744         break;
1745     case STAT_RETURN:
1746         hres = compile_return_statement(ctx, (expression_statement_t*)stat);
1747         break;
1748     case STAT_SWITCH:
1749         hres = compile_switch_statement(ctx, (switch_statement_t*)stat);
1750         break;
1751     case STAT_THROW:
1752         hres = compile_throw_statement(ctx, (expression_statement_t*)stat);
1753         break;
1754     case STAT_TRY:
1755         hres = compile_try_statement(ctx, (try_statement_t*)stat);
1756         break;
1757     case STAT_VAR:
1758         hres = compile_var_statement(ctx, (var_statement_t*)stat);
1759         break;
1760     case STAT_WHILE:
1761         hres = compile_while_statement(ctx, (while_statement_t*)stat);
1762         break;
1763     case STAT_WITH:
1764         hres = compile_with_statement(ctx, (with_statement_t*)stat);
1765         break;
1766     DEFAULT_UNREACHABLE;
1767     }
1768
1769     if(stat_ctx) {
1770         assert(ctx->stat_ctx == stat_ctx);
1771         ctx->stat_ctx = stat_ctx->next;
1772     }
1773
1774     return hres;
1775 }
1776
1777 static void resolve_labels(compiler_ctx_t *ctx, unsigned off)
1778 {
1779     instr_t *instr;
1780
1781     for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->code_off; instr++) {
1782         if(instr_info[instr->op].arg1_type == ARG_ADDR && (instr->u.arg->uint & LABEL_FLAG)) {
1783             assert((instr->u.arg->uint & ~LABEL_FLAG) < ctx->labels_cnt);
1784             instr->u.arg->uint = ctx->labels[instr->u.arg->uint & ~LABEL_FLAG];
1785         }
1786         assert(instr_info[instr->op].arg2_type != ARG_ADDR);
1787     }
1788
1789     ctx->labels_cnt = 0;
1790 }
1791
1792 void release_bytecode(bytecode_t *code)
1793 {
1794     unsigned i;
1795
1796     if(--code->ref)
1797         return;
1798
1799     for(i=0; i < code->bstr_cnt; i++)
1800         SysFreeString(code->bstr_pool[i]);
1801     for(i=0; i < code->str_cnt; i++)
1802         jsstr_release(code->str_pool[i]);
1803
1804     heap_free(code->source);
1805     heap_pool_free(&code->heap);
1806     heap_free(code->bstr_pool);
1807     heap_free(code->str_pool);
1808     heap_free(code->instrs);
1809     heap_free(code);
1810 }
1811
1812 static HRESULT init_code(compiler_ctx_t *compiler, const WCHAR *source)
1813 {
1814     compiler->code = heap_alloc_zero(sizeof(bytecode_t));
1815     if(!compiler->code)
1816         return E_OUTOFMEMORY;
1817
1818     compiler->code->ref = 1;
1819     heap_pool_init(&compiler->code->heap);
1820
1821     compiler->code->source = heap_strdupW(source);
1822     if(!compiler->code->source) {
1823         release_bytecode(compiler->code);
1824         return E_OUTOFMEMORY;
1825     }
1826
1827     compiler->code->instrs = heap_alloc(64 * sizeof(instr_t));
1828     if(!compiler->code->instrs) {
1829         release_bytecode(compiler->code);
1830         return E_OUTOFMEMORY;
1831     }
1832
1833     compiler->code_size = 64;
1834     compiler->code_off = 1;
1835     return S_OK;
1836 }
1837
1838 static HRESULT compile_function(compiler_ctx_t *ctx, source_elements_t *source, function_expression_t *func_expr,
1839         BOOL from_eval, function_code_t *func)
1840 {
1841     variable_declaration_t *var_iter;
1842     function_expression_t *iter;
1843     unsigned off, i;
1844     HRESULT hres;
1845
1846     TRACE("\n");
1847
1848     ctx->var_head = ctx->var_tail = NULL;
1849     ctx->func_head = ctx->func_tail = NULL;
1850     ctx->from_eval = from_eval;
1851
1852     off = ctx->code_off;
1853     ctx->func = func;
1854     hres = compile_block_statement(ctx, source->statement);
1855     if(FAILED(hres))
1856         return hres;
1857
1858     resolve_labels(ctx, off);
1859
1860     if(!push_instr(ctx, OP_ret))
1861         return E_OUTOFMEMORY;
1862
1863     if(TRACE_ON(jscript_disas))
1864         dump_code(ctx, off);
1865
1866     func->instr_off = off;
1867
1868     if(func_expr && func_expr->identifier) {
1869         func->name = compiler_alloc_bstr(ctx, func_expr->identifier);
1870         if(!func->name)
1871             return E_OUTOFMEMORY;
1872     }
1873
1874     if(func_expr) {
1875         parameter_t *param_iter;
1876
1877         func->source = func_expr->src_str;
1878         func->source_len = func_expr->src_len;
1879
1880         for(param_iter = func_expr->parameter_list; param_iter; param_iter = param_iter->next)
1881             func->param_cnt++;
1882
1883         func->params = compiler_alloc(ctx->code, func->param_cnt * sizeof(*func->params));
1884         if(!func->params)
1885             return E_OUTOFMEMORY;
1886
1887         for(param_iter = func_expr->parameter_list, i=0; param_iter; param_iter = param_iter->next, i++) {
1888             func->params[i] = compiler_alloc_bstr(ctx, param_iter->identifier);
1889             if(!func->params[i])
1890                 return E_OUTOFMEMORY;
1891         }
1892     }
1893
1894     func->variables = compiler_alloc(ctx->code, func->var_cnt * sizeof(*func->variables));
1895     if(!func->variables)
1896         return E_OUTOFMEMORY;
1897
1898     for(var_iter = ctx->var_head, i=0; var_iter; var_iter = var_iter->global_next, i++) {
1899         func->variables[i] = compiler_alloc_bstr(ctx, var_iter->identifier);
1900         if(!func->variables[i])
1901             return E_OUTOFMEMORY;
1902     }
1903
1904     assert(i == func->var_cnt);
1905
1906     func->funcs = compiler_alloc(ctx->code, func->func_cnt * sizeof(*func->funcs));
1907     if(!func->funcs)
1908         return E_OUTOFMEMORY;
1909     memset(func->funcs, 0, func->func_cnt * sizeof(*func->funcs));
1910
1911     for(iter = ctx->func_head, i=0; iter; iter = iter->next, i++) {
1912         hres = compile_function(ctx, iter->source_elements, iter, FALSE, func->funcs+i);
1913         if(FAILED(hres))
1914             return hres;
1915     }
1916
1917     assert(i == func->func_cnt);
1918
1919     return S_OK;
1920 }
1921
1922 static HRESULT parse_arguments(compiler_ctx_t *ctx, const WCHAR *args, BSTR *arg_array, unsigned *args_size)
1923 {
1924     const WCHAR *ptr = args, *ptr2;
1925     unsigned arg_cnt = 0;
1926
1927     while(isspaceW(*ptr))
1928         ptr++;
1929     if(!*ptr) {
1930         if(args_size)
1931             *args_size = 0;
1932         return S_OK;
1933     }
1934
1935     while(1) {
1936         if(!isalphaW(*ptr) && *ptr != '_') {
1937             FIXME("expected alpha or '_': %s\n", debugstr_w(ptr));
1938             return E_FAIL;
1939         }
1940
1941         ptr2 = ptr;
1942         while(isalnumW(*ptr) || *ptr == '_')
1943             ptr++;
1944
1945         if(*ptr && *ptr != ',' && !isspaceW(*ptr)) {
1946             FIXME("unexpected har %s\n", debugstr_w(ptr));
1947             return E_FAIL;
1948         }
1949
1950         if(arg_array) {
1951             arg_array[arg_cnt] = compiler_alloc_bstr_len(ctx, ptr2, ptr-ptr2);
1952             if(!arg_array[arg_cnt])
1953                 return E_OUTOFMEMORY;
1954         }
1955         arg_cnt++;
1956
1957         while(isspaceW(*ptr))
1958             ptr++;
1959         if(!*ptr)
1960             break;
1961         if(*ptr != ',') {
1962             FIXME("expected ',': %s\n", debugstr_w(ptr));
1963             return E_FAIL;
1964         }
1965
1966         ptr++;
1967         while(isspaceW(*ptr))
1968             ptr++;
1969     }
1970
1971     if(args_size)
1972         *args_size = arg_cnt;
1973     return S_OK;
1974 }
1975
1976 static HRESULT compile_arguments(compiler_ctx_t *ctx, const WCHAR *args)
1977 {
1978     HRESULT hres;
1979
1980     hres = parse_arguments(ctx, args, NULL, &ctx->code->global_code.param_cnt);
1981     if(FAILED(hres))
1982         return hres;
1983
1984     ctx->code->global_code.params = compiler_alloc(ctx->code,
1985             ctx->code->global_code.param_cnt * sizeof(*ctx->code->global_code.params));
1986     if(!ctx->code->global_code.params)
1987         return E_OUTOFMEMORY;
1988
1989     return parse_arguments(ctx, args, ctx->code->global_code.params, NULL);
1990 }
1991
1992 HRESULT compile_script(script_ctx_t *ctx, const WCHAR *code, const WCHAR *args, const WCHAR *delimiter,
1993         BOOL from_eval, BOOL use_decode, bytecode_t **ret)
1994 {
1995     compiler_ctx_t compiler = {0};
1996     HRESULT hres;
1997
1998     hres = init_code(&compiler, code);
1999     if(FAILED(hres))
2000         return hres;
2001
2002     if(args) {
2003         hres = compile_arguments(&compiler, args);
2004         if(FAILED(hres))
2005             return hres;
2006     }
2007
2008     if(use_decode) {
2009         hres = decode_source(compiler.code->source);
2010         if(FAILED(hres)) {
2011             WARN("Decoding failed\n");
2012             return hres;
2013         }
2014     }
2015
2016     hres = script_parse(ctx, compiler.code->source, delimiter, from_eval, &compiler.parser);
2017     if(FAILED(hres)) {
2018         release_bytecode(compiler.code);
2019         return hres;
2020     }
2021
2022     hres = compile_function(&compiler, compiler.parser->source, NULL, from_eval, &compiler.code->global_code);
2023     parser_release(compiler.parser);
2024     if(FAILED(hres)) {
2025         release_bytecode(compiler.code);
2026         return hres;
2027     }
2028
2029     *ret = compiler.code;
2030     return S_OK;
2031 }