dlls/jscript/engine.c

   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 #include "jscript.h"
  20 #include "engine.h"
  21
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  25
  26 #define EXPR_NOVAL   0x0001
  27 #define EXPR_NEWREF  0x0002
  28 #define EXPR_STRREF  0x0004
  29
  30 static inline HRESULT stat_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
  31 {
  32     return stat->eval(ctx, stat, rt, ret);
  33 }
  34
  35 static inline HRESULT expr_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
  36 {
  37     return _expr->eval(ctx, _expr, flags, ei, ret);
  38 }
  39
  40 static void exprval_release(exprval_t *val)
  41 {
  42     switch(val->type) {
  43     case EXPRVAL_VARIANT:
  44         if(V_VT(&val->u.var) != VT_EMPTY)
  45             VariantClear(&val->u.var);
  46         return;
  47     case EXPRVAL_IDREF:
  48         if(val->u.idref.disp)
  49             IDispatch_Release(val->u.idref.disp);
  50         return;
  51     case EXPRVAL_NAMEREF:
  52         if(val->u.nameref.disp)
  53             IDispatch_Release(val->u.nameref.disp);
  54         SysFreeString(val->u.nameref.name);
  55     }
  56 }
  57
  58 /* ECMA-262 3rd Edition    8.7.1 */
  59 static HRESULT exprval_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  60 {
  61     V_VT(ret) = VT_EMPTY;
  62
  63     switch(val->type) {
  64     case EXPRVAL_VARIANT:
  65         return VariantCopy(ret, &val->u.var);
  66     case EXPRVAL_IDREF:
  67         if(!val->u.idref.disp) {
  68             FIXME("throw ReferenceError\n");
  69             return E_FAIL;
  70         }
  71
  72         return disp_propget(val->u.idref.disp, val->u.idref.id, ctx->lcid, ret, ei, NULL/*FIXME*/);
  73     default:
  74         ERR("type %d\n", val->type);
  75         return E_FAIL;
  76     }
  77 }
  78
  79 static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  80 {
  81     if(val->type == EXPRVAL_VARIANT) {
  82         *ret = val->u.var;
  83         V_VT(&val->u.var) = VT_EMPTY;
  84         return S_OK;
  85     }
  86
  87     return exprval_value(ctx, val, ei, ret);
  88 }
  89
  90 static HRESULT exprval_to_boolean(script_ctx_t *ctx, exprval_t *exprval, jsexcept_t *ei, VARIANT_BOOL *b)
  91 {
  92     if(exprval->type != EXPRVAL_VARIANT) {
  93         VARIANT val;
  94         HRESULT hres;
  95
  96         hres = exprval_to_value(ctx, exprval, ei, &val);
  97         if(FAILED(hres))
  98             return hres;
  99
 100         hres = to_boolean(&val, b);
 101         VariantClear(&val);
 102         return hres;
 103     }
 104
 105     return to_boolean(&exprval->u.var, b);
 106 }
 107
 108 static void exprval_init(exprval_t *val)
 109 {
 110     val->type = EXPRVAL_VARIANT;
 111     V_VT(&val->u.var) = VT_EMPTY;
 112 }
 113
 114 static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
 115 {
 116     val->type = EXPRVAL_IDREF;
 117     val->u.idref.disp = disp;
 118     val->u.idref.id = id;
 119
 120     if(disp)
 121         IDispatch_AddRef(disp);
 122 }
 123
 124 HRESULT scope_push(scope_chain_t *scope, DispatchEx *obj, scope_chain_t **ret)
 125 {
 126     scope_chain_t *new_scope;
 127
 128     new_scope = heap_alloc(sizeof(scope_chain_t));
 129     if(!new_scope)
 130         return E_OUTOFMEMORY;
 131
 132     new_scope->ref = 1;
 133
 134     IDispatchEx_AddRef(_IDispatchEx_(obj));
 135     new_scope->obj = obj;
 136
 137     if(scope) {
 138         scope_addref(scope);
 139         new_scope->next = scope;
 140     }else {
 141         new_scope->next = NULL;
 142     }
 143
 144     *ret = new_scope;
 145     return S_OK;
 146 }
 147
 148 static void scope_pop(scope_chain_t **scope)
 149 {
 150     scope_chain_t *tmp;
 151
 152     tmp = *scope;
 153     *scope = tmp->next;
 154     scope_release(tmp);
 155 }
 156
 157 void scope_release(scope_chain_t *scope)
 158 {
 159     if(--scope->ref)
 160         return;
 161
 162     if(scope->next)
 163         scope_release(scope->next);
 164
 165     IDispatchEx_Release(_IDispatchEx_(scope->obj));
 166     heap_free(scope);
 167 }
 168
 169 HRESULT create_exec_ctx(IDispatch *this_obj, DispatchEx *var_disp, scope_chain_t *scope, exec_ctx_t **ret)
 170 {
 171     exec_ctx_t *ctx;
 172
 173     ctx = heap_alloc_zero(sizeof(exec_ctx_t));
 174     if(!ctx)
 175         return E_OUTOFMEMORY;
 176
 177     IDispatch_AddRef(this_obj);
 178     ctx->this_obj = this_obj;
 179
 180     IDispatchEx_AddRef(_IDispatchEx_(var_disp));
 181     ctx->var_disp = var_disp;
 182
 183     if(scope) {
 184         scope_addref(scope);
 185         ctx->scope_chain = scope;
 186     }
 187
 188     *ret = ctx;
 189     return S_OK;
 190 }
 191
 192 void exec_release(exec_ctx_t *ctx)
 193 {
 194     if(--ctx->ref)
 195         return;
 196
 197     if(ctx->scope_chain)
 198         scope_release(ctx->scope_chain);
 199     if(ctx->var_disp)
 200         IDispatchEx_Release(_IDispatchEx_(ctx->var_disp));
 201     if(ctx->this_obj)
 202         IDispatch_Release(ctx->this_obj);
 203     heap_free(ctx);
 204 }
 205
 206 static HRESULT dispex_get_id(IDispatchEx *dispex, BSTR name, DWORD flags, DISPID *id)
 207 {
 208     *id = 0;
 209
 210     return IDispatchEx_GetDispID(dispex, name, flags|fdexNameCaseSensitive, id);
 211 }
 212
 213 static HRESULT disp_get_id(IDispatch *disp, BSTR name, DWORD flags, DISPID *id)
 214 {
 215     IDispatchEx *dispex;
 216     HRESULT hres;
 217
 218     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 219     if(FAILED(hres)) {
 220         TRACE("unsing IDispatch\n");
 221
 222         *id = 0;
 223         return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
 224     }
 225
 226     hres = dispex_get_id(dispex, name, flags, id);
 227     IDispatchEx_Release(dispex);
 228     return hres;
 229 }
 230
 231 /* ECMA-262 3rd Edition    8.7.2 */
 232 static HRESULT put_value(script_ctx_t *ctx, exprval_t *ref, VARIANT *v, jsexcept_t *ei)
 233 {
 234     if(ref->type != EXPRVAL_IDREF) {
 235         FIXME("throw ReferemceError\n");
 236         return E_FAIL;
 237     }
 238
 239     return disp_propput(ref->u.idref.disp, ref->u.idref.id, ctx->lcid, v, ei, NULL/*FIXME*/);
 240 }
 241
 242 static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret)
 243 {
 244     IObjectIdentity *identity;
 245     IUnknown *unk1, *unk2;
 246     HRESULT hres;
 247
 248     if(disp1 == disp2) {
 249         *ret = TRUE;
 250         return S_OK;
 251     }
 252
 253     hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1);
 254     if(FAILED(hres))
 255         return hres;
 256
 257     hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2);
 258     if(FAILED(hres)) {
 259         IUnknown_Release(unk1);
 260         return hres;
 261     }
 262
 263     if(unk1 == unk2) {
 264         *ret = TRUE;
 265     }else {
 266         hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity);
 267         if(SUCCEEDED(hres)) {
 268             hres = IObjectIdentity_IsEqualObject(identity, unk2);
 269             IObjectIdentity_Release(identity);
 270             *ret = hres == S_OK;
 271         }else {
 272             *ret = FALSE;
 273         }
 274     }
 275
 276     IUnknown_Release(unk1);
 277     IUnknown_Release(unk2);
 278     return S_OK;
 279 }
 280
 281 static inline BOOL is_num_vt(enum VARENUM vt)
 282 {
 283     return vt == VT_I4 || vt == VT_R8;
 284 }
 285
 286 static inline DOUBLE num_val(const VARIANT *v)
 287 {
 288     return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
 289 }
 290
 291 static inline void num_set_val(VARIANT *v, DOUBLE d)
 292 {
 293     if(d == (DOUBLE)(INT)d) {
 294         V_VT(v) = VT_I4;
 295         V_I4(v) = d;
 296     }else {
 297         V_VT(v) = VT_R8;
 298         V_R8(v) = d;
 299     }
 300 }
 301
 302 /* ECMA-262 3rd Edition    11.9.6 */
 303 HRESULT equal2_values(VARIANT *lval, VARIANT *rval, BOOL *ret)
 304 {
 305     TRACE("\n");
 306
 307     if(V_VT(lval) != V_VT(rval)) {
 308         if(is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))) {
 309             *ret = num_val(lval) == num_val(rval);
 310             return S_OK;
 311         }
 312
 313         *ret = FALSE;
 314         return S_OK;
 315     }
 316
 317     switch(V_VT(lval)) {
 318     case VT_EMPTY:
 319     case VT_NULL:
 320         *ret = VARIANT_TRUE;
 321         break;
 322     case VT_I4:
 323         *ret = V_I4(lval) == V_I4(rval);
 324         break;
 325     case VT_R8:
 326         *ret = V_R8(lval) == V_R8(rval);
 327         break;
 328     case VT_BSTR:
 329         *ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
 330         break;
 331     case VT_DISPATCH:
 332         return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
 333     case VT_BOOL:
 334         *ret = !V_BOOL(lval) == !V_BOOL(rval);
 335         break;
 336     default:
 337         FIXME("unimplemented vt %d\n", V_VT(lval));
 338         return E_NOTIMPL;
 339     }
 340
 341     return S_OK;
 342 }
 343
 344 static HRESULT literal_to_var(literal_t *literal, VARIANT *v)
 345 {
 346     V_VT(v) = literal->vt;
 347
 348     switch(V_VT(v)) {
 349     case VT_EMPTY:
 350     case VT_NULL:
 351         break;
 352     case VT_I4:
 353         V_I4(v) = literal->u.lval;
 354         break;
 355     case VT_R8:
 356         V_R8(v) = literal->u.dval;
 357         break;
 358     case VT_BSTR:
 359         V_BSTR(v) = SysAllocString(literal->u.wstr);
 360         break;
 361     case VT_BOOL:
 362         V_BOOL(v) = literal->u.bval;
 363         break;
 364     case VT_DISPATCH:
 365         IDispatch_AddRef(literal->u.disp);
 366         V_DISPATCH(v) = literal->u.disp;
 367         break;
 368     default:
 369         ERR("wrong type %d\n", V_VT(v));
 370         return E_NOTIMPL;
 371     }
 372
 373     return S_OK;
 374 }
 375
 376 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, jsexcept_t *ei, VARIANT *retv)
 377 {
 378     script_ctx_t *script = parser->script;
 379     function_declaration_t *func;
 380     parser_ctx_t *prev_parser;
 381     VARIANT val, tmp;
 382     statement_t *stat;
 383     exec_ctx_t *prev_ctx;
 384     return_type_t rt;
 385     HRESULT hres = S_OK;
 386
 387     for(func = source->functions; func; func = func->next) {
 388         DispatchEx *func_obj;
 389         VARIANT var;
 390
 391         hres = create_source_function(parser, func->parameter_list, func->source_elements, ctx->scope_chain, &func_obj);
 392         if(FAILED(hres))
 393             return hres;
 394
 395         V_VT(&var) = VT_DISPATCH;
 396         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(func_obj);
 397         hres = jsdisp_propput_name(ctx->var_disp, func->identifier, script->lcid, &var, ei, NULL);
 398         IDispatchEx_Release(_IDispatchEx_(func_obj));
 399         if(FAILED(hres))
 400             return hres;
 401     }
 402
 403     prev_ctx = script->exec_ctx;
 404     script->exec_ctx = ctx;
 405
 406     prev_parser = ctx->parser;
 407     ctx->parser = parser;
 408
 409     V_VT(&val) = VT_EMPTY;
 410     memset(&rt, 0, sizeof(rt));
 411     rt.type = RT_NORMAL;
 412
 413     for(stat = source->statement; stat; stat = stat->next) {
 414         hres = stat_eval(ctx, stat, &rt, &tmp);
 415         if(FAILED(hres))
 416             break;
 417
 418         VariantClear(&val);
 419         val = tmp;
 420         if(rt.type != RT_NORMAL)
 421             break;
 422     }
 423
 424     script->exec_ctx = prev_ctx;
 425     ctx->parser = prev_parser;
 426
 427     if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
 428         FIXME("wrong rt %d\n", rt.type);
 429         hres = E_FAIL;
 430     }
 431
 432     *ei = rt.ei;
 433     if(FAILED(hres)) {
 434         VariantClear(&val);
 435         return hres;
 436     }
 437
 438     if(retv)
 439         *retv = val;
 440     else
 441         VariantClear(&val);
 442     return S_OK;
 443 }
 444
 445 /* ECMA-262 3rd Edition    10.1.4 */
 446 static HRESULT identifier_eval(exec_ctx_t *ctx, BSTR identifier, DWORD flags, exprval_t *ret)
 447 {
 448     scope_chain_t *scope;
 449     named_item_t *item;
 450     DISPID id = 0;
 451     HRESULT hres;
 452
 453     TRACE("%s\n", debugstr_w(identifier));
 454
 455     for(scope = ctx->scope_chain; scope; scope = scope->next) {
 456         hres = dispex_get_id(_IDispatchEx_(scope->obj), identifier, 0, &id);
 457         if(SUCCEEDED(hres))
 458             break;
 459     }
 460
 461     if(scope) {
 462         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(scope->obj), id);
 463         return S_OK;
 464     }
 465
 466     hres = dispex_get_id(_IDispatchEx_(ctx->parser->script->global), identifier, 0, &id);
 467     if(SUCCEEDED(hres)) {
 468         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->global), id);
 469         return S_OK;
 470     }
 471
 472     for(item = ctx->parser->script->named_items; item; item = item->next) {
 473         hres = disp_get_id(item->disp, identifier, 0, &id);
 474         if(SUCCEEDED(hres))
 475             break;
 476     }
 477
 478     if(item) {
 479         exprval_set_idref(ret, (IDispatch*)item->disp, id);
 480         return S_OK;
 481     }
 482
 483     hres = dispex_get_id(_IDispatchEx_(ctx->parser->script->script_disp), identifier, 0, &id);
 484     if(SUCCEEDED(hres)) {
 485         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->script_disp), id);
 486         return S_OK;
 487     }
 488
 489     if(flags & EXPR_NEWREF) {
 490         hres = dispex_get_id(_IDispatchEx_(ctx->var_disp), identifier, fdexNameEnsure, &id);
 491         if(FAILED(hres))
 492             return hres;
 493
 494         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->var_disp), id);
 495         return S_OK;
 496     }
 497
 498     WARN("Could not find identifier %s\n", debugstr_w(identifier));
 499     return E_FAIL;
 500 }
 501
 502 /* ECMA-262 3rd Edition    12.1 */
 503 HRESULT block_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 504 {
 505     block_statement_t *stat = (block_statement_t*)_stat;
 506     VARIANT val, tmp;
 507     statement_t *iter;
 508     HRESULT hres = S_OK;
 509
 510     TRACE("\n");
 511
 512     V_VT(&val) = VT_EMPTY;
 513     for(iter = stat->stat_list; iter; iter = iter->next) {
 514         hres = stat_eval(ctx, iter, rt, &tmp);
 515         if(FAILED(hres))
 516             break;
 517
 518         VariantClear(&val);
 519         val = tmp;
 520         if(rt->type != RT_NORMAL)
 521             break;
 522     }
 523
 524     if(FAILED(hres)) {
 525         VariantClear(&val);
 526         return hres;
 527     }
 528
 529     *ret = val;
 530     return S_OK;
 531 }
 532
 533 /* ECMA-262 3rd Edition    12.2 */
 534 static HRESULT variable_list_eval(exec_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
 535 {
 536     variable_declaration_t *iter;
 537     HRESULT hres = E_FAIL;
 538
 539     for(iter = var_list; iter; iter = iter->next) {
 540         VARIANT val;
 541
 542         if(iter->expr) {
 543             exprval_t exprval;
 544
 545             hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
 546             if(FAILED(hres))
 547                 break;
 548
 549             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
 550             exprval_release(&exprval);
 551             if(FAILED(hres))
 552                 break;
 553         }else {
 554             V_VT(&val) = VT_EMPTY;
 555         }
 556
 557         hres = jsdisp_propput_name(ctx->var_disp, iter->identifier, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
 558         VariantClear(&val);
 559         if(FAILED(hres))
 560             break;
 561     }
 562
 563     return hres;
 564 }
 565
 566 /* ECMA-262 3rd Edition    12.2 */
 567 HRESULT var_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 568 {
 569     var_statement_t *stat = (var_statement_t*)_stat;
 570     HRESULT hres;
 571
 572     TRACE("\n");
 573
 574     hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 575     if(FAILED(hres))
 576         return hres;
 577
 578     V_VT(ret) = VT_EMPTY;
 579     return S_OK;
 580 }
 581
 582 /* ECMA-262 3rd Edition    12.3 */
 583 HRESULT empty_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 584 {
 585     TRACE("\n");
 586
 587     V_VT(ret) = VT_EMPTY;
 588     return S_OK;
 589 }
 590
 591 /* ECMA-262 3rd Edition    12.4 */
 592 HRESULT expression_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 593 {
 594     expression_statement_t *stat = (expression_statement_t*)_stat;
 595     exprval_t exprval;
 596     VARIANT val;
 597     HRESULT hres;
 598
 599     TRACE("\n");
 600
 601     hres = expr_eval(ctx, stat->expr, EXPR_NOVAL, &rt->ei, &exprval);
 602     if(FAILED(hres))
 603         return hres;
 604
 605     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 606     exprval_release(&exprval);
 607     if(FAILED(hres))
 608         return hres;
 609
 610     *ret = val;
 611     TRACE("= %s\n", debugstr_variant(ret));
 612     return S_OK;
 613 }
 614
 615 /* ECMA-262 3rd Edition    12.5 */
 616 HRESULT if_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 617 {
 618     if_statement_t *stat = (if_statement_t*)_stat;
 619     exprval_t exprval;
 620     VARIANT_BOOL b;
 621     HRESULT hres;
 622
 623     TRACE("\n");
 624
 625     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 626     if(FAILED(hres))
 627         return hres;
 628
 629     hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 630     exprval_release(&exprval);
 631     if(FAILED(hres))
 632         return hres;
 633
 634     if(b)
 635         hres = stat_eval(ctx, stat->if_stat, rt, ret);
 636     else if(stat->else_stat)
 637         hres = stat_eval(ctx, stat->else_stat, rt, ret);
 638     else
 639         V_VT(ret) = VT_EMPTY;
 640
 641     return hres;
 642 }
 643
 644 HRESULT dowhile_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 645 {
 646     FIXME("\n");
 647     return E_NOTIMPL;
 648 }
 649
 650 HRESULT while_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 651 {
 652     FIXME("\n");
 653     return E_NOTIMPL;
 654 }
 655
 656 HRESULT for_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 657 {
 658     FIXME("\n");
 659     return E_NOTIMPL;
 660 }
 661
 662 HRESULT forin_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 663 {
 664     FIXME("\n");
 665     return E_NOTIMPL;
 666 }
 667
 668 HRESULT continue_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 669 {
 670     FIXME("\n");
 671     return E_NOTIMPL;
 672 }
 673
 674 /* ECMA-262 3rd Edition    12.8 */
 675 HRESULT break_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 676 {
 677     branch_statement_t *stat = (branch_statement_t*)_stat;
 678
 679     TRACE("\n");
 680
 681     if(stat->identifier) {
 682         FIXME("indentifier not implemented\n");
 683         return E_NOTIMPL;
 684     }
 685
 686     rt->type = RT_BREAK;
 687     V_VT(ret) = VT_EMPTY;
 688     return S_OK;
 689 }
 690
 691 /* ECMA-262 3rd Edition    12.9 */
 692 HRESULT return_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 693 {
 694     expression_statement_t *stat = (expression_statement_t*)_stat;
 695     HRESULT hres;
 696
 697     TRACE("\n");
 698
 699     if(stat->expr) {
 700         exprval_t exprval;
 701
 702         hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 703         if(FAILED(hres))
 704             return hres;
 705
 706         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, ret);
 707         exprval_release(&exprval);
 708         if(FAILED(hres))
 709             return hres;
 710     }else {
 711         V_VT(ret) = VT_EMPTY;
 712     }
 713
 714     TRACE("= %s\n", debugstr_variant(ret));
 715     rt->type = RT_RETURN;
 716     return S_OK;
 717 }
 718
 719 HRESULT with_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 720 {
 721     FIXME("\n");
 722     return E_NOTIMPL;
 723 }
 724
 725 HRESULT labelled_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 726 {
 727     FIXME("\n");
 728     return E_NOTIMPL;
 729 }
 730
 731 /* ECMA-262 3rd Edition    12.13 */
 732 HRESULT switch_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 733 {
 734     switch_statement_t *stat = (switch_statement_t*)_stat;
 735     case_clausule_t *iter, *default_clausule = NULL;
 736     statement_t *stat_iter;
 737     VARIANT val, cval;
 738     exprval_t exprval;
 739     BOOL b;
 740     HRESULT hres;
 741
 742     TRACE("\n");
 743
 744     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 745     if(FAILED(hres))
 746         return hres;
 747
 748     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 749     exprval_release(&exprval);
 750     if(FAILED(hres))
 751         return hres;
 752
 753     for(iter = stat->case_list; iter; iter = iter->next) {
 754         if(!iter->expr) {
 755             default_clausule = iter;
 756             continue;
 757         }
 758
 759         hres = expr_eval(ctx, iter->expr, 0, &rt->ei, &exprval);
 760         if(FAILED(hres))
 761             break;
 762
 763         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &cval);
 764         exprval_release(&exprval);
 765         if(FAILED(hres))
 766             break;
 767
 768         hres = equal2_values(&val, &cval, &b);
 769         VariantClear(&cval);
 770         if(FAILED(hres) || b)
 771             break;
 772     }
 773
 774     VariantClear(&val);
 775     if(FAILED(hres))
 776         return hres;
 777
 778     if(!iter)
 779         iter = default_clausule;
 780
 781     V_VT(&val) = VT_EMPTY;
 782     if(iter) {
 783         VARIANT tmp;
 784
 785         for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
 786             hres = stat_eval(ctx, stat_iter, rt, &tmp);
 787             if(FAILED(hres))
 788                 break;
 789
 790             VariantClear(&val);
 791             val = tmp;
 792
 793             if(rt->type != RT_NORMAL)
 794                 break;
 795         }
 796     }
 797
 798     if(FAILED(hres)) {
 799         VariantClear(&val);
 800         return hres;
 801     }
 802
 803     if(rt->type == RT_BREAK)
 804         rt->type = RT_NORMAL;
 805
 806     *ret = val;
 807     return S_OK;
 808 }
 809
 810 /* ECMA-262 3rd Edition    12.13 */
 811 HRESULT throw_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 812 {
 813     expression_statement_t *stat = (expression_statement_t*)_stat;
 814     exprval_t exprval;
 815     VARIANT val;
 816     HRESULT hres;
 817
 818     TRACE("\n");
 819
 820     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 821     if(FAILED(hres))
 822         return hres;
 823
 824     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 825     exprval_release(&exprval);
 826     if(FAILED(hres))
 827         return hres;
 828
 829     rt->ei.var = val;
 830     return DISP_E_EXCEPTION;
 831 }
 832
 833 /* ECMA-262 3rd Edition    12.14 */
 834 static HRESULT catch_eval(exec_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
 835 {
 836     DispatchEx *var_disp;
 837     VARIANT ex, val;
 838     HRESULT hres;
 839
 840     ex = rt->ei.var;
 841     memset(&rt->ei, 0, sizeof(jsexcept_t));
 842
 843     hres = create_dispex(ctx->parser->script, NULL, NULL, &var_disp);
 844     if(SUCCEEDED(hres)) {
 845         hres = jsdisp_propput_name(var_disp, block->identifier, ctx->parser->script->lcid,
 846                 &ex, &rt->ei, NULL/*FIXME*/);
 847         if(SUCCEEDED(hres)) {
 848             hres = scope_push(ctx->scope_chain, var_disp, &ctx->scope_chain);
 849             if(SUCCEEDED(hres)) {
 850                 hres = stat_eval(ctx, block->statement, rt, &val);
 851                 scope_pop(&ctx->scope_chain);
 852             }
 853         }
 854
 855         jsdisp_release(var_disp);
 856     }
 857
 858     VariantClear(&ex);
 859     if(FAILED(hres))
 860         return hres;
 861
 862     *ret = val;
 863     return S_OK;
 864 }
 865
 866 /* ECMA-262 3rd Edition    12.14 */
 867 HRESULT try_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 868 {
 869     try_statement_t *stat = (try_statement_t*)_stat;
 870     VARIANT val;
 871     HRESULT hres;
 872
 873     TRACE("\n");
 874
 875     hres = stat_eval(ctx, stat->try_statement, rt, &val);
 876     if(FAILED(hres)) {
 877         TRACE("EXCEPTION\n");
 878         if(!stat->catch_block)
 879             return hres;
 880
 881         hres = catch_eval(ctx, stat->catch_block, rt, &val);
 882         if(FAILED(hres))
 883             return hres;
 884     }
 885
 886     if(stat->finally_statement) {
 887         VariantClear(&val);
 888         hres = stat_eval(ctx, stat->finally_statement, rt, &val);
 889         if(FAILED(hres))
 890             return hres;
 891     }
 892
 893     *ret = val;
 894     return S_OK;
 895 }
 896
 897 static HRESULT return_bool(exprval_t *ret, DWORD b)
 898 {
 899     ret->type = EXPRVAL_VARIANT;
 900     V_VT(&ret->u.var) = VT_BOOL;
 901     V_BOOL(&ret->u.var) = b ? VARIANT_TRUE : VARIANT_FALSE;
 902
 903     return S_OK;
 904 }
 905
 906 static HRESULT get_binary_expr_values(exec_ctx_t *ctx, binary_expression_t *expr, jsexcept_t *ei, VARIANT *lval, VARIANT *rval)
 907 {
 908     exprval_t exprval;
 909     HRESULT hres;
 910
 911     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
 912     if(FAILED(hres))
 913         return hres;
 914
 915     hres = exprval_to_value(ctx->parser->script, &exprval, ei, lval);
 916     exprval_release(&exprval);
 917     if(FAILED(hres))
 918         return hres;
 919
 920     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
 921     if(SUCCEEDED(hres)) {
 922         hres = exprval_to_value(ctx->parser->script, &exprval, ei, rval);
 923         exprval_release(&exprval);
 924     }
 925
 926     if(FAILED(hres)) {
 927         VariantClear(lval);
 928         return hres;
 929     }
 930
 931     return S_OK;
 932 }
 933
 934 typedef HRESULT (*oper_t)(exec_ctx_t*,VARIANT*,VARIANT*,jsexcept_t*,VARIANT*);
 935
 936 static HRESULT binary_expr_eval(exec_ctx_t *ctx, binary_expression_t *expr, oper_t oper, jsexcept_t *ei,
 937         exprval_t *ret)
 938 {
 939     VARIANT lval, rval, retv;
 940     HRESULT hres;
 941
 942     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
 943     if(FAILED(hres))
 944         return hres;
 945
 946     hres = oper(ctx, &lval, &rval, ei, &retv);
 947     VariantClear(&lval);
 948     VariantClear(&rval);
 949     if(FAILED(hres))
 950         return hres;
 951
 952     ret->type = EXPRVAL_VARIANT;
 953     ret->u.var = retv;
 954     return S_OK;
 955 }
 956
 957 /* ECMA-262 3rd Edition    11.13.2 */
 958 static HRESULT assign_oper_eval(exec_ctx_t *ctx, expression_t *lexpr, expression_t *rexpr, oper_t oper,
 959                                 jsexcept_t *ei, exprval_t *ret)
 960 {
 961     VARIANT retv, lval, rval;
 962     exprval_t exprval, exprvalr;
 963     HRESULT hres;
 964
 965     hres = expr_eval(ctx, lexpr, EXPR_NEWREF, ei, &exprval);
 966     if(FAILED(hres))
 967         return hres;
 968
 969     hres = exprval_value(ctx->parser->script, &exprval, ei, &lval);
 970     if(SUCCEEDED(hres)) {
 971         hres = expr_eval(ctx, rexpr, 0, ei, &exprvalr);
 972         if(SUCCEEDED(hres)) {
 973             hres = exprval_value(ctx->parser->script, &exprvalr, ei, &rval);
 974             exprval_release(&exprvalr);
 975         }
 976         if(SUCCEEDED(hres)) {
 977             hres = oper(ctx, &lval, &rval, ei, &retv);
 978             VariantClear(&rval);
 979         }
 980         VariantClear(&lval);
 981     }
 982
 983     if(SUCCEEDED(hres)) {
 984         hres = put_value(ctx->parser->script, &exprval, &retv, ei);
 985         if(FAILED(hres))
 986             VariantClear(&retv);
 987     }
 988     exprval_release(&exprval);
 989
 990     if(FAILED(hres))
 991         return hres;
 992
 993     ret->type = EXPRVAL_VARIANT;
 994     ret->u.var = retv;
 995     return S_OK;
 996 }
 997
 998 /* ECMA-262 3rd Edition    13 */
 999 HRESULT function_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1000 {
1001     function_expression_t *expr = (function_expression_t*)_expr;
1002     DispatchEx *dispex;
1003     VARIANT var;
1004     HRESULT hres;
1005
1006     TRACE("\n");
1007
1008     hres = create_source_function(ctx->parser, expr->parameter_list, expr->source_elements, ctx->scope_chain, &dispex);
1009     if(FAILED(hres))
1010         return hres;
1011
1012     V_VT(&var) = VT_DISPATCH;
1013     V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(dispex);
1014
1015     if(expr->identifier) {
1016         hres = jsdisp_propput_name(ctx->var_disp, expr->identifier, ctx->parser->script->lcid, &var, ei, NULL/*FIXME*/);
1017         if(FAILED(hres)) {
1018             jsdisp_release(dispex);
1019             return hres;
1020         }
1021     }
1022
1023     ret->type = EXPRVAL_VARIANT;
1024     ret->u.var = var;
1025     return S_OK;
1026 }
1027
1028 /* ECMA-262 3rd Edition    11.12 */
1029 HRESULT conditional_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1030 {
1031     conditional_expression_t *expr = (conditional_expression_t*)_expr;
1032     exprval_t exprval;
1033     VARIANT_BOOL b;
1034     HRESULT hres;
1035
1036     TRACE("\n");
1037
1038     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1039     if(FAILED(hres))
1040         return hres;
1041
1042     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
1043     exprval_release(&exprval);
1044     if(FAILED(hres))
1045         return hres;
1046
1047     return expr_eval(ctx, b ? expr->true_expression : expr->false_expression, flags, ei, ret);
1048 }
1049
1050 /* ECMA-262 3rd Edition    11.2.1 */
1051 HRESULT array_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1052 {
1053     array_expression_t *expr = (array_expression_t*)_expr;
1054     exprval_t exprval;
1055     VARIANT member, val;
1056     DISPID id;
1057     BSTR str;
1058     IDispatch *obj = NULL;
1059     HRESULT hres;
1060
1061     TRACE("\n");
1062
1063     hres = expr_eval(ctx, expr->member_expr, EXPR_NEWREF, ei, &exprval);
1064     if(FAILED(hres))
1065         return hres;
1066
1067     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1068     exprval_release(&exprval);
1069     if(FAILED(hres))
1070         return hres;
1071
1072     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1073     if(SUCCEEDED(hres)) {
1074         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1075         exprval_release(&exprval);
1076     }
1077
1078     if(SUCCEEDED(hres))
1079         hres = to_object(ctx, &member, &obj);
1080     VariantClear(&member);
1081     if(SUCCEEDED(hres)) {
1082         hres = to_string(ctx->parser->script, &val, ei, &str);
1083         if(SUCCEEDED(hres)) {
1084             if(flags & EXPR_STRREF) {
1085                 ret->type = EXPRVAL_NAMEREF;
1086                 ret->u.nameref.disp = obj;
1087                 ret->u.nameref.name = str;
1088                 return S_OK;
1089             }
1090
1091             hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1092         }
1093
1094         if(SUCCEEDED(hres)) {
1095             exprval_set_idref(ret, obj, id);
1096         }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1097             exprval_init(ret);
1098             hres = S_OK;
1099         }
1100
1101         IDispatch_Release(obj);
1102     }
1103
1104     return hres;
1105 }
1106
1107 /* ECMA-262 3rd Edition    11.2.1 */
1108 HRESULT member_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1109 {
1110     member_expression_t *expr = (member_expression_t*)_expr;
1111     IDispatch *obj = NULL;
1112     exprval_t exprval;
1113     VARIANT member;
1114     DISPID id;
1115     BSTR str;
1116     HRESULT hres;
1117
1118     TRACE("\n");
1119
1120     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1121     if(FAILED(hres))
1122         return hres;
1123
1124     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1125     exprval_release(&exprval);
1126     if(FAILED(hres))
1127         return hres;
1128
1129     hres = to_object(ctx, &member, &obj);
1130     VariantClear(&member);
1131     if(FAILED(hres))
1132         return hres;
1133
1134     str = SysAllocString(expr->identifier);
1135     if(flags & EXPR_STRREF) {
1136         ret->type = EXPRVAL_NAMEREF;
1137         ret->u.nameref.disp = obj;
1138         ret->u.nameref.name = str;
1139         return S_OK;
1140     }
1141
1142     hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1143     SysFreeString(str);
1144     if(SUCCEEDED(hres)) {
1145         exprval_set_idref(ret, obj, id);
1146     }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1147         exprval_init(ret);
1148         hres = S_OK;
1149     }
1150
1151     IDispatch_Release(obj);
1152     return hres;
1153 }
1154
1155 static void free_dp(DISPPARAMS *dp)
1156 {
1157     DWORD i;
1158
1159     for(i=0; i < dp->cArgs; i++)
1160         VariantClear(dp->rgvarg+i);
1161     heap_free(dp->rgvarg);
1162 }
1163
1164 static HRESULT args_to_param(exec_ctx_t *ctx, argument_t *args, jsexcept_t *ei, DISPPARAMS *dp)
1165 {
1166     VARIANTARG *vargs;
1167     exprval_t exprval;
1168     argument_t *iter;
1169     DWORD cnt = 0, i;
1170     HRESULT hres = S_OK;
1171
1172     memset(dp, 0, sizeof(*dp));
1173     if(!args)
1174         return S_OK;
1175
1176     for(iter = args; iter; iter = iter->next)
1177         cnt++;
1178
1179     vargs = heap_alloc_zero(cnt * sizeof(*vargs));
1180     if(!vargs)
1181         return E_OUTOFMEMORY;
1182
1183     for(i = cnt, iter = args; iter; iter = iter->next) {
1184         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
1185         if(FAILED(hres))
1186             break;
1187
1188         hres = exprval_to_value(ctx->parser->script, &exprval, ei, vargs + (--i));
1189         exprval_release(&exprval);
1190         if(FAILED(hres))
1191             break;
1192     }
1193
1194     if(FAILED(hres)) {
1195         free_dp(dp);
1196         return hres;
1197     }
1198
1199     dp->rgvarg = vargs;
1200     dp->cArgs = cnt;
1201     return S_OK;
1202 }
1203
1204 /* ECMA-262 3rd Edition    11.2.2 */
1205 HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1206 {
1207     call_expression_t *expr = (call_expression_t*)_expr;
1208     exprval_t exprval;
1209     VARIANT constr, var;
1210     DISPPARAMS dp;
1211     HRESULT hres;
1212
1213     TRACE("\n");
1214
1215     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1216     if(FAILED(hres))
1217         return hres;
1218
1219     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1220     if(SUCCEEDED(hres))
1221         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &constr);
1222     exprval_release(&exprval);
1223     if(FAILED(hres))
1224         return hres;
1225
1226     if(V_VT(&constr) != VT_DISPATCH) {
1227         FIXME("throw TypeError\n");
1228         VariantClear(&constr);
1229         return E_FAIL;
1230     }
1231
1232     hres = disp_call(V_DISPATCH(&constr), DISPID_VALUE, ctx->parser->script->lcid,
1233                      DISPATCH_CONSTRUCT, &dp, &var, ei, NULL/*FIXME*/);
1234     IDispatch_Release(V_DISPATCH(&constr));
1235     if(FAILED(hres))
1236         return hres;
1237
1238     ret->type = EXPRVAL_VARIANT;
1239     ret->u.var = var;
1240     return S_OK;
1241 }
1242
1243 HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1244 {
1245     call_expression_t *expr = (call_expression_t*)_expr;
1246     VARIANT func, var;
1247     exprval_t exprval;
1248     DISPPARAMS dp;
1249     HRESULT hres;
1250
1251     TRACE("\n");
1252
1253     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1254     if(FAILED(hres))
1255         return hres;
1256
1257     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1258     if(SUCCEEDED(hres)) {
1259         switch(exprval.type) {
1260         case EXPRVAL_IDREF:
1261             hres = disp_call(exprval.u.idref.disp, exprval.u.idref.id, ctx->parser->script->lcid, DISPATCH_METHOD,
1262                     &dp, flags & EXPR_NOVAL ? NULL : &var, ei, NULL/*FIXME*/);
1263             if(flags & EXPR_NOVAL)
1264                 V_VT(&var) = VT_EMPTY;
1265             break;
1266         default:
1267             FIXME("unimplemented type %d\n", V_VT(&func));
1268             hres = E_NOTIMPL;
1269         }
1270
1271         free_dp(&dp);
1272     }
1273
1274     exprval_release(&exprval);
1275     if(FAILED(hres))
1276         return hres;
1277
1278     TRACE("= %s\n", debugstr_variant(&var));
1279     ret->type = EXPRVAL_VARIANT;
1280     ret->u.var = var;
1281     return S_OK;
1282 }
1283
1284 HRESULT this_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1285 {
1286     TRACE("\n");
1287
1288     ret->type = EXPRVAL_VARIANT;
1289     V_VT(&ret->u.var) = VT_DISPATCH;
1290     V_DISPATCH(&ret->u.var) = ctx->this_obj;
1291     IDispatch_AddRef(ctx->this_obj);
1292     return S_OK;
1293 }
1294
1295 /* ECMA-262 3rd Edition    10.1.4 */
1296 HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1297 {
1298     identifier_expression_t *expr = (identifier_expression_t*)_expr;
1299     BSTR identifier;
1300     HRESULT hres;
1301
1302     TRACE("\n");
1303
1304     identifier = SysAllocString(expr->identifier);
1305     if(!identifier)
1306         return E_OUTOFMEMORY;
1307
1308     hres = identifier_eval(ctx, identifier, flags, ret);
1309
1310     SysFreeString(identifier);
1311     return hres;
1312 }
1313
1314 /* ECMA-262 3rd Edition    7.8 */
1315 HRESULT literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1316 {
1317     literal_expression_t *expr = (literal_expression_t*)_expr;
1318     VARIANT var;
1319     HRESULT hres;
1320
1321     TRACE("\n");
1322
1323     hres = literal_to_var(expr->literal, &var);
1324     if(FAILED(hres))
1325         return hres;
1326
1327     ret->type = EXPRVAL_VARIANT;
1328     ret->u.var = var;
1329     return S_OK;
1330 }
1331
1332 HRESULT array_literal_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1333 {
1334     FIXME("\n");
1335     return E_NOTIMPL;
1336 }
1337
1338 /* ECMA-262 3rd Edition    11.1.5 */
1339 HRESULT property_value_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1340 {
1341     property_value_expression_t *expr = (property_value_expression_t*)_expr;
1342     VARIANT val, tmp;
1343     DispatchEx *obj;
1344     prop_val_t *iter;
1345     exprval_t exprval;
1346     BSTR name;
1347     HRESULT hres;
1348
1349     TRACE("\n");
1350
1351     hres = create_object(ctx->parser->script, NULL, &obj);
1352     if(FAILED(hres))
1353         return hres;
1354
1355     for(iter = expr->property_list; iter; iter = iter->next) {
1356         hres = literal_to_var(iter->name, &tmp);
1357         if(FAILED(hres))
1358             break;
1359
1360         hres = to_string(ctx->parser->script, &tmp, ei, &name);
1361         VariantClear(&tmp);
1362         if(FAILED(hres))
1363             break;
1364
1365         hres = expr_eval(ctx, iter->value, 0, ei, &exprval);
1366         if(SUCCEEDED(hres)) {
1367             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1368             exprval_release(&exprval);
1369             if(SUCCEEDED(hres)) {
1370                 hres = jsdisp_propput_name(obj, name, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1371                 VariantClear(&val);
1372             }
1373         }
1374
1375         SysFreeString(name);
1376         if(FAILED(hres))
1377             break;
1378     }
1379
1380     if(FAILED(hres)) {
1381         jsdisp_release(obj);
1382         return hres;
1383     }
1384
1385     ret->type = EXPRVAL_VARIANT;
1386     V_VT(&ret->u.var) = VT_DISPATCH;
1387     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(obj);
1388     return S_OK;
1389 }
1390
1391 HRESULT comma_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1392 {
1393     FIXME("\n");
1394     return E_NOTIMPL;
1395 }
1396
1397 /* ECMA-262 3rd Edition    11.11 */
1398 HRESULT logical_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1399 {
1400     binary_expression_t *expr = (binary_expression_t*)_expr;
1401     exprval_t exprval;
1402     VARIANT_BOOL b;
1403     VARIANT val;
1404     HRESULT hres;
1405
1406     TRACE("\n");
1407
1408     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1409     if(FAILED(hres))
1410         return hres;
1411
1412     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1413     exprval_release(&exprval);
1414     if(FAILED(hres))
1415         return hres;
1416
1417     hres = to_boolean(&val, &b);
1418     if(SUCCEEDED(hres) && b) {
1419         ret->type = EXPRVAL_VARIANT;
1420         ret->u.var = val;
1421         return S_OK;
1422     }
1423
1424     VariantClear(&val);
1425     if(FAILED(hres))
1426         return hres;
1427
1428     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1429     if(FAILED(hres))
1430         return hres;
1431
1432     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1433     exprval_release(&exprval);
1434     if(FAILED(hres))
1435         return hres;
1436
1437     ret->type = EXPRVAL_VARIANT;
1438     ret->u.var = val;
1439     return S_OK;
1440 }
1441
1442 /* ECMA-262 3rd Edition    11.11 */
1443 HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1444 {
1445     binary_expression_t *expr = (binary_expression_t*)_expr;
1446     exprval_t exprval;
1447     VARIANT_BOOL b;
1448     VARIANT val;
1449     HRESULT hres;
1450
1451     TRACE("\n");
1452
1453     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1454     if(FAILED(hres))
1455         return hres;
1456
1457     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1458     exprval_release(&exprval);
1459     if(FAILED(hres))
1460         return hres;
1461
1462     hres = to_boolean(&val, &b);
1463     if(SUCCEEDED(hres) && !b) {
1464         ret->type = EXPRVAL_VARIANT;
1465         ret->u.var = val;
1466         return S_OK;
1467     }
1468
1469     VariantClear(&val);
1470     if(FAILED(hres))
1471         return hres;
1472
1473     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1474     if(FAILED(hres))
1475         return hres;
1476
1477     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1478     exprval_release(&exprval);
1479     if(FAILED(hres))
1480         return hres;
1481
1482     ret->type = EXPRVAL_VARIANT;
1483     ret->u.var = val;
1484     return S_OK;
1485 }
1486
1487 /* ECMA-262 3rd Edition    11.10 */
1488 static HRESULT bitor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1489 {
1490     INT li, ri;
1491     HRESULT hres;
1492
1493     hres = to_int32(ctx->parser->script, lval, ei, &li);
1494     if(FAILED(hres))
1495         return hres;
1496
1497     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1498     if(FAILED(hres))
1499         return hres;
1500
1501     V_VT(retv) = VT_I4;
1502     V_I4(retv) = li|ri;
1503     return S_OK;
1504 }
1505
1506 /* ECMA-262 3rd Edition    11.10 */
1507 HRESULT binary_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1508 {
1509     binary_expression_t *expr = (binary_expression_t*)_expr;
1510
1511     TRACE("\n");
1512
1513     return binary_expr_eval(ctx, expr, bitor_eval, ei, ret);
1514 }
1515
1516 HRESULT binary_xor_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1517 {
1518     FIXME("\n");
1519     return E_NOTIMPL;
1520 }
1521
1522 /* ECMA-262 3rd Edition    11.10 */
1523 static HRESULT bitand_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1524 {
1525     INT li, ri;
1526     HRESULT hres;
1527
1528     hres = to_int32(ctx->parser->script, lval, ei, &li);
1529     if(FAILED(hres))
1530         return hres;
1531
1532     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1533     if(FAILED(hres))
1534         return hres;
1535
1536     V_VT(retv) = VT_I4;
1537     V_I4(retv) = li&ri;
1538     return S_OK;
1539 }
1540
1541 /* ECMA-262 3rd Edition    11.10 */
1542 HRESULT binary_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1543 {
1544     binary_expression_t *expr = (binary_expression_t*)_expr;
1545
1546     TRACE("\n");
1547
1548     return binary_expr_eval(ctx, expr, bitand_eval, ei, ret);
1549 }
1550
1551 HRESULT instanceof_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1552 {
1553     FIXME("\n");
1554     return E_NOTIMPL;
1555 }
1556
1557 HRESULT in_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1558 {
1559     FIXME("\n");
1560     return E_NOTIMPL;
1561 }
1562
1563 /* ECMA-262 3rd Edition    11.6.1 */
1564 static HRESULT add_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1565 {
1566     VARIANT r, l;
1567     HRESULT hres;
1568
1569     hres = to_primitive(ctx->parser->script, lval, ei, &l);
1570     if(FAILED(hres))
1571         return hres;
1572
1573     hres = to_primitive(ctx->parser->script, rval, ei, &r);
1574     if(FAILED(hres)) {
1575         VariantClear(&l);
1576         return hres;
1577     }
1578
1579     if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
1580         BSTR lstr = NULL, rstr = NULL;
1581
1582         if(V_VT(&l) == VT_BSTR)
1583             lstr = V_BSTR(&l);
1584         else
1585             hres = to_string(ctx->parser->script, &l, ei, &lstr);
1586
1587         if(SUCCEEDED(hres)) {
1588             if(V_VT(&r) == VT_BSTR)
1589                 rstr = V_BSTR(&r);
1590             else
1591                 hres = to_string(ctx->parser->script, &r, ei, &rstr);
1592         }
1593
1594         if(SUCCEEDED(hres)) {
1595             int len1, len2;
1596
1597             len1 = SysStringLen(lstr);
1598             len2 = SysStringLen(rstr);
1599
1600             V_VT(retv) = VT_BSTR;
1601             V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
1602             memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
1603             memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
1604         }
1605
1606         if(lstr && V_VT(&l) != VT_BSTR)
1607             SysFreeString(lstr);
1608         if(rstr && V_VT(&r) != VT_BSTR)
1609             SysFreeString(rstr);
1610     }else {
1611         VARIANT nl, nr;
1612
1613         hres = to_number(ctx->parser->script, &l, ei, &nl);
1614         if(SUCCEEDED(hres)) {
1615             hres = to_number(ctx->parser->script, &r, ei, &nr);
1616             if(SUCCEEDED(hres))
1617                 num_set_val(retv, num_val(&nl) + num_val(&nr));
1618         }
1619     }
1620
1621     VariantClear(&r);
1622     VariantClear(&l);
1623     return hres;
1624 }
1625
1626 /* ECMA-262 3rd Edition    11.6.1 */
1627 HRESULT add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1628 {
1629     binary_expression_t *expr = (binary_expression_t*)_expr;
1630
1631     TRACE("\n");
1632
1633     return binary_expr_eval(ctx, expr, add_eval, ei, ret);
1634 }
1635
1636 /* ECMA-262 3rd Edition    11.6.2 */
1637 static HRESULT sub_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1638 {
1639     VARIANT lnum, rnum;
1640     HRESULT hres;
1641
1642     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1643     if(FAILED(hres))
1644         return hres;
1645
1646     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1647     if(FAILED(hres))
1648         return hres;
1649
1650     num_set_val(retv, num_val(&lnum) - num_val(&rnum));
1651     return S_OK;
1652 }
1653
1654 /* ECMA-262 3rd Edition    11.6.2 */
1655 HRESULT sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1656 {
1657     binary_expression_t *expr = (binary_expression_t*)_expr;
1658
1659     TRACE("\n");
1660
1661     return binary_expr_eval(ctx, expr, sub_eval, ei, ret);
1662 }
1663
1664 /* ECMA-262 3rd Edition    11.5.1 */
1665 static HRESULT mul_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1666 {
1667     VARIANT lnum, rnum;
1668     HRESULT hres;
1669
1670     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1671     if(FAILED(hres))
1672         return hres;
1673
1674     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1675     if(FAILED(hres))
1676         return hres;
1677
1678     num_set_val(retv, num_val(&lnum) * num_val(&rnum));
1679     return S_OK;
1680 }
1681
1682 /* ECMA-262 3rd Edition    11.5.1 */
1683 HRESULT mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1684 {
1685     binary_expression_t *expr = (binary_expression_t*)_expr;
1686
1687     TRACE("\n");
1688
1689     return binary_expr_eval(ctx, expr, mul_eval, ei, ret);
1690 }
1691
1692 /* ECMA-262 3rd Edition    11.5.2 */
1693 static HRESULT div_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1694 {
1695     VARIANT lnum, rnum;
1696     HRESULT hres;
1697
1698     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1699     if(FAILED(hres))
1700         return hres;
1701
1702     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1703     if(FAILED(hres))
1704         return hres;
1705
1706     num_set_val(retv, num_val(&lnum) / num_val(&rnum));
1707     return S_OK;
1708 }
1709
1710 /* ECMA-262 3rd Edition    11.5.2 */
1711 HRESULT div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1712 {
1713     binary_expression_t *expr = (binary_expression_t*)_expr;
1714
1715     TRACE("\n");
1716
1717     return binary_expr_eval(ctx, expr, div_eval, ei, ret);
1718 }
1719
1720 HRESULT mod_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1721 {
1722     FIXME("\n");
1723     return E_NOTIMPL;
1724 }
1725
1726 HRESULT delete_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1727 {
1728     FIXME("\n");
1729     return E_NOTIMPL;
1730 }
1731
1732 HRESULT void_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1733 {
1734     FIXME("\n");
1735     return E_NOTIMPL;
1736 }
1737
1738 HRESULT typeof_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1739 {
1740     unary_expression_t *expr = (unary_expression_t*)_expr;
1741     const WCHAR *str;
1742     exprval_t exprval;
1743     VARIANT val;
1744     HRESULT hres;
1745
1746     static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
1747     static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
1748     static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
1749     static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
1750     static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
1751     static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
1752
1753     TRACE("\n");
1754
1755     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1756     if(FAILED(hres))
1757         return hres;
1758
1759     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1760     exprval_release(&exprval);
1761     if(FAILED(hres))
1762         return hres;
1763
1764     switch(V_VT(&val)) {
1765     case VT_EMPTY:
1766         str = undefinedW;
1767         break;
1768     case VT_NULL:
1769         str = objectW;
1770         break;
1771     case VT_BOOL:
1772         str = booleanW;
1773         break;
1774     case VT_I4:
1775     case VT_R8:
1776         str = numberW;
1777         break;
1778     case VT_BSTR:
1779         str = stringW;
1780         break;
1781     case VT_DISPATCH: {
1782         DispatchEx *dispex;
1783
1784         dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(&val));
1785         if(dispex) {
1786             str = dispex->builtin_info->class == JSCLASS_FUNCTION ? functionW : objectW;
1787             IDispatchEx_Release(_IDispatchEx_(dispex));
1788         }else {
1789             str = objectW;
1790         }
1791         break;
1792     }
1793     default:
1794         FIXME("unhandled vt %d\n", V_VT(&val));
1795         hres = E_NOTIMPL;
1796     }
1797
1798     VariantClear(&val);
1799     if(FAILED(hres))
1800         return hres;
1801
1802     ret->type = EXPRVAL_VARIANT;
1803     V_VT(&ret->u.var) = VT_BSTR;
1804     V_BSTR(&ret->u.var) = SysAllocString(str);
1805     return S_OK;
1806 }
1807
1808 /* ECMA-262 3rd Edition    11.4.7 */
1809 HRESULT minus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1810 {
1811     unary_expression_t *expr = (unary_expression_t*)_expr;
1812     exprval_t exprval;
1813     VARIANT val, num;
1814     HRESULT hres;
1815
1816     TRACE("\n");
1817
1818     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1819     if(FAILED(hres))
1820         return hres;
1821
1822     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1823     exprval_release(&exprval);
1824     if(FAILED(hres))
1825         return hres;
1826
1827     hres = to_number(ctx->parser->script, &val, ei, &num);
1828     VariantClear(&val);
1829     if(FAILED(hres))
1830         return hres;
1831
1832     ret->type = EXPRVAL_VARIANT;
1833     num_set_val(&ret->u.var, -num_val(&num));
1834     return S_OK;
1835 }
1836
1837 HRESULT plus_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1838 {
1839     FIXME("\n");
1840     return E_NOTIMPL;
1841 }
1842
1843 /* ECMA-262 3rd Edition    11.3.1 */
1844 HRESULT post_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1845 {
1846     unary_expression_t *expr = (unary_expression_t*)_expr;
1847     VARIANT val, num;
1848     exprval_t exprval;
1849     HRESULT hres;
1850
1851     TRACE("\n");
1852
1853     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1854     if(FAILED(hres))
1855         return hres;
1856
1857     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1858     if(SUCCEEDED(hres)) {
1859         hres = to_number(ctx->parser->script, &val, ei, &num);
1860         VariantClear(&val);
1861     }
1862
1863     if(SUCCEEDED(hres)) {
1864         VARIANT inc;
1865         num_set_val(&inc, num_val(&num)+1.0);
1866         hres = put_value(ctx->parser->script, &exprval, &inc, ei);
1867     }
1868
1869     exprval_release(&exprval);
1870     if(FAILED(hres))
1871         return hres;
1872
1873     ret->type = EXPRVAL_VARIANT;
1874     ret->u.var = num;
1875     return S_OK;
1876 }
1877
1878 /* ECMA-262 3rd Edition    11.3.2 */
1879 HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1880 {
1881     unary_expression_t *expr = (unary_expression_t*)_expr;
1882     VARIANT val, num;
1883     exprval_t exprval;
1884     HRESULT hres;
1885
1886     TRACE("\n");
1887
1888     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1889     if(FAILED(hres))
1890         return hres;
1891
1892     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1893     if(SUCCEEDED(hres)) {
1894         hres = to_number(ctx->parser->script, &val, ei, &num);
1895         VariantClear(&val);
1896     }
1897
1898     if(SUCCEEDED(hres)) {
1899         VARIANT dec;
1900         num_set_val(&dec, num_val(&num)-1.0);
1901         hres = put_value(ctx->parser->script, &exprval, &dec, ei);
1902     }
1903
1904     exprval_release(&exprval);
1905     if(FAILED(hres))
1906         return hres;
1907
1908     ret->type = EXPRVAL_VARIANT;
1909     ret->u.var = num;
1910     return S_OK;
1911 }
1912
1913 /* ECMA-262 3rd Edition    11.4.4 */
1914 HRESULT pre_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1915 {
1916     unary_expression_t *expr = (unary_expression_t*)_expr;
1917     VARIANT val, num;
1918     exprval_t exprval;
1919     HRESULT hres;
1920
1921     TRACE("\n");
1922
1923     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1924     if(FAILED(hres))
1925         return hres;
1926
1927     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1928     if(SUCCEEDED(hres)) {
1929         hres = to_number(ctx->parser->script, &val, ei, &num);
1930         VariantClear(&val);
1931     }
1932
1933     if(SUCCEEDED(hres)) {
1934         num_set_val(&val, num_val(&num)+1.0);
1935         hres = put_value(ctx->parser->script, &exprval, &val, ei);
1936     }
1937
1938     exprval_release(&exprval);
1939     if(FAILED(hres))
1940         return hres;
1941
1942     ret->type = EXPRVAL_VARIANT;
1943     ret->u.var = val;
1944     return S_OK;
1945 }
1946
1947 /* ECMA-262 3rd Edition    11.4.5 */
1948 HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1949 {
1950     unary_expression_t *expr = (unary_expression_t*)_expr;
1951     VARIANT val, num;
1952     exprval_t exprval;
1953     HRESULT hres;
1954
1955     TRACE("\n");
1956
1957     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1958     if(FAILED(hres))
1959         return hres;
1960
1961     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1962     if(SUCCEEDED(hres)) {
1963         hres = to_number(ctx->parser->script, &val, ei, &num);
1964         VariantClear(&val);
1965     }
1966
1967     if(SUCCEEDED(hres)) {
1968         num_set_val(&val, num_val(&num)-1.0);
1969         hres = put_value(ctx->parser->script, &exprval, &val, ei);
1970     }
1971
1972     exprval_release(&exprval);
1973     if(FAILED(hres))
1974         return hres;
1975
1976     ret->type = EXPRVAL_VARIANT;
1977     ret->u.var = val;
1978     return S_OK;
1979 }
1980
1981 /* ECMA-262 3rd Edition    11.9.3 */
1982 static HRESULT equal_values(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
1983 {
1984     if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
1985        return equal2_values(lval, rval, ret);
1986
1987     /* FIXME: NULL disps should be handled in more general way */
1988     if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
1989         VARIANT v;
1990         V_VT(&v) = VT_NULL;
1991         return equal_values(ctx, &v, rval, ei, ret);
1992     }
1993
1994     if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
1995         VARIANT v;
1996         V_VT(&v) = VT_NULL;
1997         return equal_values(ctx, lval, &v, ei, ret);
1998     }
1999
2000     if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
2001        (V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
2002         *ret = TRUE;
2003         return S_OK;
2004     }
2005
2006     if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
2007         VARIANT v;
2008         HRESULT hres;
2009
2010         hres = to_number(ctx->parser->script, lval, ei, &v);
2011         if(FAILED(hres))
2012             return hres;
2013
2014         return equal_values(ctx, &v, rval, ei, ret);
2015     }
2016
2017     if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
2018         VARIANT v;
2019         HRESULT hres;
2020
2021         hres = to_number(ctx->parser->script, rval, ei, &v);
2022         if(FAILED(hres))
2023             return hres;
2024
2025         return equal_values(ctx, lval, &v, ei, ret);
2026     }
2027
2028     if(V_VT(rval) == VT_BOOL) {
2029         VARIANT v;
2030
2031         V_VT(&v) = VT_I4;
2032         V_I4(&v) = V_BOOL(rval) ? 1 : 0;
2033         return equal_values(ctx, lval, &v, ei, ret);
2034     }
2035
2036     if(V_VT(lval) == VT_BOOL) {
2037         VARIANT v;
2038
2039         V_VT(&v) = VT_I4;
2040         V_I4(&v) = V_BOOL(lval) ? 1 : 0;
2041         return equal_values(ctx, &v, rval, ei, ret);
2042     }
2043
2044
2045     if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
2046         VARIANT v;
2047         HRESULT hres;
2048
2049         hres = to_primitive(ctx->parser->script, rval, ei, &v);
2050         if(FAILED(hres))
2051             return hres;
2052
2053         hres = equal_values(ctx, lval, &v, ei, ret);
2054
2055         VariantClear(&v);
2056         return hres;
2057     }
2058
2059
2060     if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
2061         VARIANT v;
2062         HRESULT hres;
2063
2064         hres = to_primitive(ctx->parser->script, lval, ei, &v);
2065         if(FAILED(hres))
2066             return hres;
2067
2068         hres = equal_values(ctx, &v, rval, ei, ret);
2069
2070         VariantClear(&v);
2071         return hres;
2072     }
2073
2074
2075     *ret = FALSE;
2076     return S_OK;
2077 }
2078
2079 /* ECMA-262 3rd Edition    11.9.1 */
2080 HRESULT equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2081 {
2082     binary_expression_t *expr = (binary_expression_t*)_expr;
2083     VARIANT rval, lval;
2084     BOOL b;
2085     HRESULT hres;
2086
2087     TRACE("\n");
2088
2089     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2090     if(FAILED(hres))
2091         return hres;
2092
2093     hres = equal_values(ctx, &rval, &lval, ei, &b);
2094     if(FAILED(hres))
2095         return hres;
2096
2097     return return_bool(ret, b);
2098 }
2099
2100 /* ECMA-262 3rd Edition    11.9.4 */
2101 HRESULT equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2102 {
2103     binary_expression_t *expr = (binary_expression_t*)_expr;
2104     VARIANT rval, lval;
2105     BOOL b;
2106     HRESULT hres;
2107
2108     TRACE("\n");
2109
2110     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2111     if(FAILED(hres))
2112         return hres;
2113
2114     hres = equal2_values(&rval, &lval, &b);
2115     if(FAILED(hres))
2116         return hres;
2117
2118     return return_bool(ret, b);
2119 }
2120
2121 /* ECMA-262 3rd Edition    11.9.2 */
2122 HRESULT not_equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2123 {
2124     binary_expression_t *expr = (binary_expression_t*)_expr;
2125     VARIANT rval, lval;
2126     BOOL b;
2127     HRESULT hres;
2128
2129     TRACE("\n");
2130
2131     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2132     if(FAILED(hres))
2133         return hres;
2134
2135     hres = equal_values(ctx, &lval, &rval, ei, &b);
2136     if(FAILED(hres))
2137         return hres;
2138
2139     return return_bool(ret, !b);
2140 }
2141
2142 /* ECMA-262 3rd Edition    11.9.5 */
2143 HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2144 {
2145     binary_expression_t *expr = (binary_expression_t*)_expr;
2146     VARIANT rval, lval;
2147     BOOL b;
2148     HRESULT hres;
2149
2150     TRACE("\n");
2151
2152     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2153     if(FAILED(hres))
2154         return hres;
2155
2156     hres = equal2_values(&rval, &lval, &b);
2157     if(FAILED(hres))
2158         return hres;
2159
2160     return return_bool(ret, !b);
2161 }
2162
2163 /* ECMA-262 3rd Edition    11.8.5 */
2164 static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2165 {
2166     VARIANT l, r, ln, rn;
2167     HRESULT hres;
2168
2169     hres = to_primitive(ctx->parser->script, lval, ei, &l);
2170     if(FAILED(hres))
2171         return hres;
2172
2173     hres = to_primitive(ctx->parser->script, rval, ei, &r);
2174     if(FAILED(hres)) {
2175         VariantClear(&l);
2176         return hres;
2177     }
2178
2179     if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
2180         *ret = strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0;
2181         SysFreeString(V_BSTR(&l));
2182         SysFreeString(V_BSTR(&r));
2183         return S_OK;
2184     }
2185
2186     hres = to_number(ctx->parser->script, &l, ei, &ln);
2187     VariantClear(&l);
2188     if(SUCCEEDED(hres))
2189         hres = to_number(ctx->parser->script, &r, ei, &rn);
2190     VariantClear(&r);
2191     if(FAILED(hres))
2192         return hres;
2193
2194     if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4)
2195         *ret = V_I4(&ln) < V_I4(&rn);
2196     else
2197         *ret = num_val(&ln) < num_val(&rn);
2198
2199     return S_OK;
2200 }
2201
2202 /* ECMA-262 3rd Edition    11.8.1 */
2203 HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2204 {
2205     binary_expression_t *expr = (binary_expression_t*)_expr;
2206     VARIANT rval, lval;
2207     BOOL b;
2208     HRESULT hres;
2209
2210     TRACE("\n");
2211
2212     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2213     if(FAILED(hres))
2214         return hres;
2215
2216     hres = less_eval(ctx, &lval, &rval, ei, &b);
2217     VariantClear(&lval);
2218     VariantClear(&rval);
2219     if(FAILED(hres))
2220         return hres;
2221
2222     return return_bool(ret, b);
2223 }
2224
2225 /* ECMA-262 3rd Edition    11.8.3 */
2226 HRESULT lesseq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2227 {
2228     binary_expression_t *expr = (binary_expression_t*)_expr;
2229     VARIANT rval, lval;
2230     BOOL b;
2231     HRESULT hres;
2232
2233     TRACE("\n");
2234
2235     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2236     if(FAILED(hres))
2237         return hres;
2238
2239     hres = less_eval(ctx, &rval, &lval, ei, &b);
2240     VariantClear(&lval);
2241     VariantClear(&rval);
2242     if(FAILED(hres))
2243         return hres;
2244
2245     return return_bool(ret, !b);
2246 }
2247
2248 /* ECMA-262 3rd Edition    11.8.2 */
2249 HRESULT greater_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2250 {
2251     binary_expression_t *expr = (binary_expression_t*)_expr;
2252     VARIANT rval, lval;
2253     BOOL b;
2254     HRESULT hres;
2255
2256     TRACE("\n");
2257
2258     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2259     if(FAILED(hres))
2260         return hres;
2261
2262     hres = less_eval(ctx, &rval, &lval, ei, &b);
2263     VariantClear(&lval);
2264     VariantClear(&rval);
2265     if(FAILED(hres))
2266         return hres;
2267
2268     return return_bool(ret, b);
2269 }
2270
2271 /* ECMA-262 3rd Edition    11.8.4 */
2272 HRESULT greatereq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2273 {
2274     binary_expression_t *expr = (binary_expression_t*)_expr;
2275     VARIANT rval, lval;
2276     BOOL b;
2277     HRESULT hres;
2278
2279     TRACE("\n");
2280
2281     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2282     if(FAILED(hres))
2283         return hres;
2284
2285     hres = less_eval(ctx, &lval, &rval, ei, &b);
2286     VariantClear(&lval);
2287     VariantClear(&rval);
2288     if(FAILED(hres))
2289         return hres;
2290
2291     return return_bool(ret, !b);
2292 }
2293
2294 HRESULT binary_negation_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2295 {
2296     FIXME("\n");
2297     return E_NOTIMPL;
2298 }
2299
2300 /* ECMA-262 3rd Edition    11.4.9 */
2301 HRESULT logical_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2302 {
2303     unary_expression_t *expr = (unary_expression_t*)_expr;
2304     exprval_t exprval;
2305     VARIANT_BOOL b;
2306     HRESULT hres;
2307
2308     TRACE("\n");
2309
2310     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2311     if(FAILED(hres))
2312         return hres;
2313
2314     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
2315     exprval_release(&exprval);
2316     if(FAILED(hres))
2317         return hres;
2318
2319     return return_bool(ret, !b);
2320 }
2321
2322 HRESULT left_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2323 {
2324     FIXME("\n");
2325     return E_NOTIMPL;
2326 }
2327
2328 HRESULT right_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2329 {
2330     FIXME("\n");
2331     return E_NOTIMPL;
2332 }
2333
2334 HRESULT right2_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2335 {
2336     FIXME("\n");
2337     return E_NOTIMPL;
2338 }
2339
2340 /* ECMA-262 3rd Edition    11.13.1 */
2341 HRESULT assign_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2342 {
2343     binary_expression_t *expr = (binary_expression_t*)_expr;
2344     exprval_t exprval, exprvalr;
2345     VARIANT rval;
2346     HRESULT hres;
2347
2348     TRACE("\n");
2349
2350     hres = expr_eval(ctx, expr->expression1, EXPR_NEWREF, ei, &exprval);
2351     if(FAILED(hres))
2352         return hres;
2353
2354     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprvalr);
2355     if(SUCCEEDED(hres)) {
2356         hres = exprval_to_value(ctx->parser->script, &exprvalr, ei, &rval);
2357         exprval_release(&exprvalr);
2358     }
2359
2360     if(SUCCEEDED(hres))
2361         hres = put_value(ctx->parser->script, &exprval, &rval, ei);
2362
2363     exprval_release(&exprval);
2364     if(FAILED(hres)) {
2365         VariantClear(&rval);
2366         return hres;
2367     }
2368
2369     ret->type = EXPRVAL_VARIANT;
2370     ret->u.var = rval;
2371     return S_OK;
2372 }
2373
2374 HRESULT assign_lshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2375 {
2376     FIXME("\n");
2377     return E_NOTIMPL;
2378 }
2379
2380 HRESULT assign_rshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2381 {
2382     FIXME("\n");
2383     return E_NOTIMPL;
2384 }
2385
2386 HRESULT assign_rrshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2387 {
2388     FIXME("\n");
2389     return E_NOTIMPL;
2390 }
2391
2392 /* ECMA-262 3rd Edition    11.13.2 */
2393 HRESULT assign_add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2394 {
2395     binary_expression_t *expr = (binary_expression_t*)_expr;
2396
2397     TRACE("\n");
2398
2399     return assign_oper_eval(ctx, expr->expression1, expr->expression2, add_eval, ei, ret);
2400 }
2401
2402 /* ECMA-262 3rd Edition    11.13.2 */
2403 HRESULT assign_sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2404 {
2405     binary_expression_t *expr = (binary_expression_t*)_expr;
2406
2407     TRACE("\n");
2408
2409     return assign_oper_eval(ctx, expr->expression1, expr->expression2, sub_eval, ei, ret);
2410 }
2411
2412 /* ECMA-262 3rd Edition    11.13.2 */
2413 HRESULT assign_mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2414 {
2415     binary_expression_t *expr = (binary_expression_t*)_expr;
2416
2417     TRACE("\n");
2418
2419     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mul_eval, ei, ret);
2420 }
2421
2422 /* ECMA-262 3rd Edition    11.13.2 */
2423 HRESULT assign_div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2424 {
2425     binary_expression_t *expr = (binary_expression_t*)_expr;
2426
2427     TRACE("\n");
2428
2429     return assign_oper_eval(ctx, expr->expression1, expr->expression2, div_eval, ei, ret);
2430 }
2431
2432 HRESULT assign_mod_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2433 {
2434     FIXME("\n");
2435     return E_NOTIMPL;
2436 }
2437
2438 /* ECMA-262 3rd Edition    11.13.2 */
2439 HRESULT assign_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2440 {
2441     binary_expression_t *expr = (binary_expression_t*)_expr;
2442
2443     TRACE("\n");
2444
2445     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitand_eval, ei, ret);
2446 }
2447
2448 /* ECMA-262 3rd Edition    11.13.2 */
2449 HRESULT assign_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2450 {
2451     binary_expression_t *expr = (binary_expression_t*)_expr;
2452
2453     TRACE("\n");
2454
2455     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitor_eval, ei, ret);
2456 }
2457
2458 HRESULT assign_xor_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2459 {
2460     FIXME("\n");
2461     return E_NOTIMPL;
2462 }