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 "config.h"
  20 #include "wine/port.h"
  21
  22 #include <math.h>
  23
  24 #include "jscript.h"
  25 #include "engine.h"
  26
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  30
  31 #define EXPR_NOVAL   0x0001
  32 #define EXPR_NEWREF  0x0002
  33 #define EXPR_STRREF  0x0004
  34
  35 static inline HRESULT stat_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
  36 {
  37     return stat->eval(ctx, stat, rt, ret);
  38 }
  39
  40 static inline HRESULT expr_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
  41 {
  42     return _expr->eval(ctx, _expr, flags, ei, ret);
  43 }
  44
  45 static void exprval_release(exprval_t *val)
  46 {
  47     switch(val->type) {
  48     case EXPRVAL_VARIANT:
  49         if(V_VT(&val->u.var) != VT_EMPTY)
  50             VariantClear(&val->u.var);
  51         return;
  52     case EXPRVAL_IDREF:
  53         if(val->u.idref.disp)
  54             IDispatch_Release(val->u.idref.disp);
  55         return;
  56     case EXPRVAL_NAMEREF:
  57         if(val->u.nameref.disp)
  58             IDispatch_Release(val->u.nameref.disp);
  59         SysFreeString(val->u.nameref.name);
  60     }
  61 }
  62
  63 /* ECMA-262 3rd Edition    8.7.1 */
  64 static HRESULT exprval_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  65 {
  66     V_VT(ret) = VT_EMPTY;
  67
  68     switch(val->type) {
  69     case EXPRVAL_VARIANT:
  70         return VariantCopy(ret, &val->u.var);
  71     case EXPRVAL_IDREF:
  72         if(!val->u.idref.disp) {
  73             FIXME("throw ReferenceError\n");
  74             return E_FAIL;
  75         }
  76
  77         return disp_propget(val->u.idref.disp, val->u.idref.id, ctx->lcid, ret, ei, NULL/*FIXME*/);
  78     default:
  79         ERR("type %d\n", val->type);
  80         return E_FAIL;
  81     }
  82 }
  83
  84 static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  85 {
  86     if(val->type == EXPRVAL_VARIANT) {
  87         *ret = val->u.var;
  88         V_VT(&val->u.var) = VT_EMPTY;
  89         return S_OK;
  90     }
  91
  92     return exprval_value(ctx, val, ei, ret);
  93 }
  94
  95 static HRESULT exprval_to_boolean(script_ctx_t *ctx, exprval_t *exprval, jsexcept_t *ei, VARIANT_BOOL *b)
  96 {
  97     if(exprval->type != EXPRVAL_VARIANT) {
  98         VARIANT val;
  99         HRESULT hres;
 100
 101         hres = exprval_to_value(ctx, exprval, ei, &val);
 102         if(FAILED(hres))
 103             return hres;
 104
 105         hres = to_boolean(&val, b);
 106         VariantClear(&val);
 107         return hres;
 108     }
 109
 110     return to_boolean(&exprval->u.var, b);
 111 }
 112
 113 static void exprval_init(exprval_t *val)
 114 {
 115     val->type = EXPRVAL_VARIANT;
 116     V_VT(&val->u.var) = VT_EMPTY;
 117 }
 118
 119 static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
 120 {
 121     val->type = EXPRVAL_IDREF;
 122     val->u.idref.disp = disp;
 123     val->u.idref.id = id;
 124
 125     if(disp)
 126         IDispatch_AddRef(disp);
 127 }
 128
 129 HRESULT scope_push(scope_chain_t *scope, DispatchEx *obj, scope_chain_t **ret)
 130 {
 131     scope_chain_t *new_scope;
 132
 133     new_scope = heap_alloc(sizeof(scope_chain_t));
 134     if(!new_scope)
 135         return E_OUTOFMEMORY;
 136
 137     new_scope->ref = 1;
 138
 139     IDispatchEx_AddRef(_IDispatchEx_(obj));
 140     new_scope->obj = obj;
 141
 142     if(scope) {
 143         scope_addref(scope);
 144         new_scope->next = scope;
 145     }else {
 146         new_scope->next = NULL;
 147     }
 148
 149     *ret = new_scope;
 150     return S_OK;
 151 }
 152
 153 static void scope_pop(scope_chain_t **scope)
 154 {
 155     scope_chain_t *tmp;
 156
 157     tmp = *scope;
 158     *scope = tmp->next;
 159     scope_release(tmp);
 160 }
 161
 162 void scope_release(scope_chain_t *scope)
 163 {
 164     if(--scope->ref)
 165         return;
 166
 167     if(scope->next)
 168         scope_release(scope->next);
 169
 170     IDispatchEx_Release(_IDispatchEx_(scope->obj));
 171     heap_free(scope);
 172 }
 173
 174 HRESULT create_exec_ctx(IDispatch *this_obj, DispatchEx *var_disp, scope_chain_t *scope, exec_ctx_t **ret)
 175 {
 176     exec_ctx_t *ctx;
 177
 178     ctx = heap_alloc_zero(sizeof(exec_ctx_t));
 179     if(!ctx)
 180         return E_OUTOFMEMORY;
 181
 182     ctx->ref = 1;
 183
 184     IDispatch_AddRef(this_obj);
 185     ctx->this_obj = this_obj;
 186
 187     IDispatchEx_AddRef(_IDispatchEx_(var_disp));
 188     ctx->var_disp = var_disp;
 189
 190     if(scope) {
 191         scope_addref(scope);
 192         ctx->scope_chain = scope;
 193     }
 194
 195     *ret = ctx;
 196     return S_OK;
 197 }
 198
 199 void exec_release(exec_ctx_t *ctx)
 200 {
 201     if(--ctx->ref)
 202         return;
 203
 204     if(ctx->scope_chain)
 205         scope_release(ctx->scope_chain);
 206     if(ctx->var_disp)
 207         IDispatchEx_Release(_IDispatchEx_(ctx->var_disp));
 208     if(ctx->this_obj)
 209         IDispatch_Release(ctx->this_obj);
 210     heap_free(ctx);
 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     *id = 0;
 227     hres = IDispatchEx_GetDispID(dispex, name, flags|fdexNameCaseSensitive, id);
 228     IDispatchEx_Release(dispex);
 229     return hres;
 230 }
 231
 232 /* ECMA-262 3rd Edition    8.7.2 */
 233 static HRESULT put_value(script_ctx_t *ctx, exprval_t *ref, VARIANT *v, jsexcept_t *ei)
 234 {
 235     if(ref->type != EXPRVAL_IDREF)
 236         return throw_reference_error(ctx, ei, IDS_ILLEGAL_ASSIGN, NULL);
 237
 238     return disp_propput(ref->u.idref.disp, ref->u.idref.id, ctx->lcid, v, ei, NULL/*FIXME*/);
 239 }
 240
 241 static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret)
 242 {
 243     IObjectIdentity *identity;
 244     IUnknown *unk1, *unk2;
 245     HRESULT hres;
 246
 247     if(disp1 == disp2) {
 248         *ret = TRUE;
 249         return S_OK;
 250     }
 251
 252     hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1);
 253     if(FAILED(hres))
 254         return hres;
 255
 256     hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2);
 257     if(FAILED(hres)) {
 258         IUnknown_Release(unk1);
 259         return hres;
 260     }
 261
 262     if(unk1 == unk2) {
 263         *ret = TRUE;
 264     }else {
 265         hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity);
 266         if(SUCCEEDED(hres)) {
 267             hres = IObjectIdentity_IsEqualObject(identity, unk2);
 268             IObjectIdentity_Release(identity);
 269             *ret = hres == S_OK;
 270         }else {
 271             *ret = FALSE;
 272         }
 273     }
 274
 275     IUnknown_Release(unk1);
 276     IUnknown_Release(unk2);
 277     return S_OK;
 278 }
 279
 280 /* ECMA-262 3rd Edition    11.9.6 */
 281 static HRESULT equal2_values(VARIANT *lval, VARIANT *rval, BOOL *ret)
 282 {
 283     TRACE("\n");
 284
 285     if(V_VT(lval) != V_VT(rval)) {
 286         if(is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))) {
 287             *ret = num_val(lval) == num_val(rval);
 288             return S_OK;
 289         }
 290
 291         *ret = FALSE;
 292         return S_OK;
 293     }
 294
 295     switch(V_VT(lval)) {
 296     case VT_EMPTY:
 297     case VT_NULL:
 298         *ret = VARIANT_TRUE;
 299         break;
 300     case VT_I4:
 301         *ret = V_I4(lval) == V_I4(rval);
 302         break;
 303     case VT_R8:
 304         *ret = V_R8(lval) == V_R8(rval);
 305         break;
 306     case VT_BSTR:
 307         if(!V_BSTR(lval))
 308             *ret = SysStringLen(V_BSTR(rval))?FALSE:TRUE;
 309         else if(!V_BSTR(rval))
 310             *ret = SysStringLen(V_BSTR(lval))?FALSE:TRUE;
 311         else
 312             *ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
 313         break;
 314     case VT_DISPATCH:
 315         return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
 316     case VT_BOOL:
 317         *ret = !V_BOOL(lval) == !V_BOOL(rval);
 318         break;
 319     default:
 320         FIXME("unimplemented vt %d\n", V_VT(lval));
 321         return E_NOTIMPL;
 322     }
 323
 324     return S_OK;
 325 }
 326
 327 static HRESULT literal_to_var(literal_t *literal, VARIANT *v)
 328 {
 329     V_VT(v) = literal->vt;
 330
 331     switch(V_VT(v)) {
 332     case VT_EMPTY:
 333     case VT_NULL:
 334         break;
 335     case VT_I4:
 336         V_I4(v) = literal->u.lval;
 337         break;
 338     case VT_R8:
 339         V_R8(v) = literal->u.dval;
 340         break;
 341     case VT_BSTR:
 342         V_BSTR(v) = SysAllocString(literal->u.wstr);
 343         break;
 344     case VT_BOOL:
 345         V_BOOL(v) = literal->u.bval;
 346         break;
 347     case VT_DISPATCH:
 348         IDispatch_AddRef(literal->u.disp);
 349         V_DISPATCH(v) = literal->u.disp;
 350         break;
 351     default:
 352         ERR("wrong type %d\n", V_VT(v));
 353         return E_NOTIMPL;
 354     }
 355
 356     return S_OK;
 357 }
 358
 359 static BOOL lookup_global_members(script_ctx_t *ctx, BSTR identifier, exprval_t *ret)
 360 {
 361     named_item_t *item;
 362     DISPID id;
 363     HRESULT hres;
 364
 365     for(item = ctx->named_items; item; item = item->next) {
 366         if(item->flags & SCRIPTITEM_GLOBALMEMBERS) {
 367             hres = disp_get_id(item->disp, identifier, 0, &id);
 368             if(SUCCEEDED(hres)) {
 369                 if(ret)
 370                     exprval_set_idref(ret, item->disp, id);
 371                 return TRUE;
 372             }
 373         }
 374     }
 375
 376     return FALSE;
 377 }
 378
 379 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, jsexcept_t *ei, VARIANT *retv)
 380 {
 381     script_ctx_t *script = parser->script;
 382     function_declaration_t *func;
 383     parser_ctx_t *prev_parser;
 384     var_list_t *var;
 385     VARIANT val, tmp;
 386     statement_t *stat;
 387     exec_ctx_t *prev_ctx;
 388     return_type_t rt;
 389     HRESULT hres = S_OK;
 390
 391     for(func = source->functions; func; func = func->next) {
 392         DispatchEx *func_obj;
 393         VARIANT var;
 394
 395         hres = create_source_function(parser, func->expr->parameter_list, func->expr->source_elements,
 396                 ctx->scope_chain, func->expr->src_str, func->expr->src_len, &func_obj);
 397         if(FAILED(hres))
 398             return hres;
 399
 400         V_VT(&var) = VT_DISPATCH;
 401         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(func_obj);
 402         hres = jsdisp_propput_name(ctx->var_disp, func->expr->identifier, script->lcid, &var, ei, NULL);
 403         jsdisp_release(func_obj);
 404         if(FAILED(hres))
 405             return hres;
 406     }
 407
 408     for(var = source->variables; var; var = var->next) {
 409         DISPID id = 0;
 410
 411         hres = jsdisp_get_id(ctx->var_disp, var->identifier, fdexNameEnsure, &id);
 412         if(FAILED(hres))
 413             return hres;
 414     }
 415
 416     prev_ctx = script->exec_ctx;
 417     script->exec_ctx = ctx;
 418
 419     prev_parser = ctx->parser;
 420     ctx->parser = parser;
 421
 422     V_VT(&val) = VT_EMPTY;
 423     memset(&rt, 0, sizeof(rt));
 424     rt.type = RT_NORMAL;
 425
 426     for(stat = source->statement; stat; stat = stat->next) {
 427         hres = stat_eval(ctx, stat, &rt, &tmp);
 428         if(FAILED(hres))
 429             break;
 430
 431         VariantClear(&val);
 432         val = tmp;
 433         if(rt.type != RT_NORMAL)
 434             break;
 435     }
 436
 437     script->exec_ctx = prev_ctx;
 438     ctx->parser = prev_parser;
 439
 440     if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
 441         FIXME("wrong rt %d\n", rt.type);
 442         hres = E_FAIL;
 443     }
 444
 445     *ei = rt.ei;
 446     if(FAILED(hres)) {
 447         VariantClear(&val);
 448         return hres;
 449     }
 450
 451     if(retv)
 452         *retv = val;
 453     else
 454         VariantClear(&val);
 455     return S_OK;
 456 }
 457
 458 /* ECMA-262 3rd Edition    10.1.4 */
 459 static HRESULT identifier_eval(exec_ctx_t *ctx, BSTR identifier, DWORD flags, jsexcept_t *ei, exprval_t *ret)
 460 {
 461     scope_chain_t *scope;
 462     named_item_t *item;
 463     DISPID id = 0;
 464     HRESULT hres;
 465
 466     TRACE("%s\n", debugstr_w(identifier));
 467
 468     for(scope = ctx->scope_chain; scope; scope = scope->next) {
 469         hres = jsdisp_get_id(scope->obj, identifier, 0, &id);
 470         if(SUCCEEDED(hres))
 471             break;
 472     }
 473
 474     if(scope) {
 475         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(scope->obj), id);
 476         return S_OK;
 477     }
 478
 479     hres = jsdisp_get_id(ctx->parser->script->global, identifier, 0, &id);
 480     if(SUCCEEDED(hres)) {
 481         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->global), id);
 482         return S_OK;
 483     }
 484
 485     for(item = ctx->parser->script->named_items; item; item = item->next) {
 486         if((item->flags & SCRIPTITEM_ISVISIBLE) && !strcmpW(item->name, identifier)) {
 487             if(!item->disp) {
 488                 IUnknown *unk;
 489
 490                 if(!ctx->parser->script->site)
 491                     break;
 492
 493                 hres = IActiveScriptSite_GetItemInfo(ctx->parser->script->site, identifier,
 494                                                      SCRIPTINFO_IUNKNOWN, &unk, NULL);
 495                 if(FAILED(hres)) {
 496                     WARN("GetItemInfo failed: %08x\n", hres);
 497                     break;
 498                 }
 499
 500                 hres = IUnknown_QueryInterface(unk, &IID_IDispatch, (void**)&item->disp);
 501                 IUnknown_Release(unk);
 502                 if(FAILED(hres)) {
 503                     WARN("object does not implement IDispatch\n");
 504                     break;
 505                 }
 506             }
 507
 508             ret->type = EXPRVAL_VARIANT;
 509             V_VT(&ret->u.var) = VT_DISPATCH;
 510             V_DISPATCH(&ret->u.var) = item->disp;
 511             IDispatch_AddRef(item->disp);
 512             return S_OK;
 513         }
 514     }
 515
 516     hres = jsdisp_get_id(ctx->parser->script->script_disp, identifier, 0, &id);
 517     if(SUCCEEDED(hres)) {
 518         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->script_disp), id);
 519         return S_OK;
 520     }
 521
 522     if(lookup_global_members(ctx->parser->script, identifier, ret))
 523         return S_OK;
 524
 525     if(flags & EXPR_NEWREF) {
 526         hres = jsdisp_get_id(ctx->var_disp, identifier, fdexNameEnsure, &id);
 527         if(FAILED(hres))
 528             return hres;
 529
 530         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->var_disp), id);
 531         return S_OK;
 532     }
 533
 534     return throw_type_error(ctx->var_disp->ctx, ei, IDS_UNDEFINED, identifier);
 535 }
 536
 537 /* ECMA-262 3rd Edition    12.1 */
 538 HRESULT block_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 539 {
 540     block_statement_t *stat = (block_statement_t*)_stat;
 541     VARIANT val, tmp;
 542     statement_t *iter;
 543     HRESULT hres = S_OK;
 544
 545     TRACE("\n");
 546
 547     V_VT(&val) = VT_EMPTY;
 548     for(iter = stat->stat_list; iter; iter = iter->next) {
 549         hres = stat_eval(ctx, iter, rt, &tmp);
 550         if(FAILED(hres))
 551             break;
 552
 553         VariantClear(&val);
 554         val = tmp;
 555         if(rt->type != RT_NORMAL)
 556             break;
 557     }
 558
 559     if(FAILED(hres)) {
 560         VariantClear(&val);
 561         return hres;
 562     }
 563
 564     *ret = val;
 565     return S_OK;
 566 }
 567
 568 /* ECMA-262 3rd Edition    12.2 */
 569 static HRESULT variable_list_eval(exec_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
 570 {
 571     variable_declaration_t *iter;
 572     HRESULT hres = S_OK;
 573
 574     for(iter = var_list; iter; iter = iter->next) {
 575         exprval_t exprval;
 576         VARIANT val;
 577
 578         if(!iter->expr)
 579             continue;
 580
 581         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
 582         if(FAILED(hres))
 583             break;
 584
 585         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
 586         exprval_release(&exprval);
 587         if(FAILED(hres))
 588             break;
 589
 590         hres = jsdisp_propput_name(ctx->var_disp, iter->identifier, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
 591         VariantClear(&val);
 592         if(FAILED(hres))
 593             break;
 594     }
 595
 596     return hres;
 597 }
 598
 599 /* ECMA-262 3rd Edition    12.2 */
 600 HRESULT var_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 601 {
 602     var_statement_t *stat = (var_statement_t*)_stat;
 603     HRESULT hres;
 604
 605     TRACE("\n");
 606
 607     hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 608     if(FAILED(hres))
 609         return hres;
 610
 611     V_VT(ret) = VT_EMPTY;
 612     return S_OK;
 613 }
 614
 615 /* ECMA-262 3rd Edition    12.3 */
 616 HRESULT empty_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 617 {
 618     TRACE("\n");
 619
 620     V_VT(ret) = VT_EMPTY;
 621     return S_OK;
 622 }
 623
 624 /* ECMA-262 3rd Edition    12.4 */
 625 HRESULT expression_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 626 {
 627     expression_statement_t *stat = (expression_statement_t*)_stat;
 628     exprval_t exprval;
 629     VARIANT val;
 630     HRESULT hres;
 631
 632     TRACE("\n");
 633
 634     hres = expr_eval(ctx, stat->expr, EXPR_NOVAL, &rt->ei, &exprval);
 635     if(FAILED(hres))
 636         return hres;
 637
 638     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 639     exprval_release(&exprval);
 640     if(FAILED(hres))
 641         return hres;
 642
 643     *ret = val;
 644     TRACE("= %s\n", debugstr_variant(ret));
 645     return S_OK;
 646 }
 647
 648 /* ECMA-262 3rd Edition    12.5 */
 649 HRESULT if_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 650 {
 651     if_statement_t *stat = (if_statement_t*)_stat;
 652     exprval_t exprval;
 653     VARIANT_BOOL b;
 654     HRESULT hres;
 655
 656     TRACE("\n");
 657
 658     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 659     if(FAILED(hres))
 660         return hres;
 661
 662     hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 663     exprval_release(&exprval);
 664     if(FAILED(hres))
 665         return hres;
 666
 667     if(b)
 668         hres = stat_eval(ctx, stat->if_stat, rt, ret);
 669     else if(stat->else_stat)
 670         hres = stat_eval(ctx, stat->else_stat, rt, ret);
 671     else
 672         V_VT(ret) = VT_EMPTY;
 673
 674     return hres;
 675 }
 676
 677 /* ECMA-262 3rd Edition    12.6.2 */
 678 HRESULT while_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 679 {
 680     while_statement_t *stat = (while_statement_t*)_stat;
 681     exprval_t exprval;
 682     VARIANT val, tmp;
 683     VARIANT_BOOL b;
 684     BOOL test_expr;
 685     HRESULT hres;
 686
 687     TRACE("\n");
 688
 689     V_VT(&val) = VT_EMPTY;
 690     test_expr = !stat->do_while;
 691
 692     while(1) {
 693         if(test_expr) {
 694             hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 695             if(FAILED(hres))
 696                 break;
 697
 698             hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 699             exprval_release(&exprval);
 700             if(FAILED(hres) || !b)
 701                 break;
 702         }else {
 703             test_expr = TRUE;
 704         }
 705
 706         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 707         if(FAILED(hres))
 708             break;
 709
 710         VariantClear(&val);
 711         val = tmp;
 712
 713         if(rt->type == RT_CONTINUE)
 714             rt->type = RT_NORMAL;
 715         if(rt->type != RT_NORMAL)
 716             break;
 717     }
 718
 719     if(FAILED(hres)) {
 720         VariantClear(&val);
 721         return hres;
 722     }
 723
 724     if(rt->type == RT_BREAK)
 725         rt->type = RT_NORMAL;
 726
 727     *ret = val;
 728     return S_OK;
 729 }
 730
 731 /* ECMA-262 3rd Edition    12.6.3 */
 732 HRESULT for_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 733 {
 734     for_statement_t *stat = (for_statement_t*)_stat;
 735     VARIANT val, tmp, retv;
 736     exprval_t exprval;
 737     VARIANT_BOOL b;
 738     HRESULT hres;
 739
 740     TRACE("\n");
 741
 742     if(stat->variable_list) {
 743         hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 744         if(FAILED(hres))
 745             return hres;
 746     }else if(stat->begin_expr) {
 747         hres = expr_eval(ctx, stat->begin_expr, EXPR_NEWREF, &rt->ei, &exprval);
 748         if(FAILED(hres))
 749             return hres;
 750
 751         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 752         exprval_release(&exprval);
 753         if(FAILED(hres))
 754             return hres;
 755
 756         VariantClear(&val);
 757     }
 758
 759     V_VT(&retv) = VT_EMPTY;
 760
 761     while(1) {
 762         if(stat->expr) {
 763             hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 764             if(FAILED(hres))
 765                 break;
 766
 767             hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 768             exprval_release(&exprval);
 769             if(FAILED(hres) || !b)
 770                 break;
 771         }
 772
 773         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 774         if(FAILED(hres))
 775             break;
 776
 777         VariantClear(&retv);
 778         retv = tmp;
 779
 780         if(rt->type == RT_CONTINUE)
 781             rt->type = RT_NORMAL;
 782         else if(rt->type != RT_NORMAL)
 783             break;
 784
 785         if(stat->end_expr) {
 786             hres = expr_eval(ctx, stat->end_expr, 0, &rt->ei, &exprval);
 787             if(FAILED(hres))
 788                 break;
 789
 790             hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 791             exprval_release(&exprval);
 792             if(FAILED(hres))
 793                 break;
 794
 795             VariantClear(&val);
 796         }
 797     }
 798
 799     if(FAILED(hres)) {
 800         VariantClear(&retv);
 801         return hres;
 802     }
 803
 804     if(rt->type == RT_BREAK)
 805         rt->type = RT_NORMAL;
 806
 807     *ret = retv;
 808     return S_OK;
 809 }
 810
 811 /* ECMA-262 3rd Edition    12.6.4 */
 812 HRESULT forin_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 813 {
 814     forin_statement_t *stat = (forin_statement_t*)_stat;
 815     VARIANT val, name, retv, tmp;
 816     DISPID id = DISPID_STARTENUM;
 817     BSTR str, identifier = NULL;
 818     IDispatchEx *in_obj;
 819     exprval_t exprval;
 820     HRESULT hres;
 821
 822     TRACE("\n");
 823
 824     if(stat->variable) {
 825         hres = variable_list_eval(ctx, stat->variable, &rt->ei);
 826         if(FAILED(hres))
 827             return hres;
 828     }
 829
 830     hres = expr_eval(ctx, stat->in_expr, EXPR_NEWREF, &rt->ei, &exprval);
 831     if(FAILED(hres))
 832         return hres;
 833
 834     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 835     exprval_release(&exprval);
 836     if(FAILED(hres))
 837         return hres;
 838
 839     if(V_VT(&val) != VT_DISPATCH) {
 840         TRACE("in vt %d\n", V_VT(&val));
 841         VariantClear(&val);
 842         V_VT(ret) = VT_EMPTY;
 843         return S_OK;
 844     }
 845
 846     hres = IDispatch_QueryInterface(V_DISPATCH(&val), &IID_IDispatchEx, (void**)&in_obj);
 847     IDispatch_Release(V_DISPATCH(&val));
 848     if(FAILED(hres)) {
 849         FIXME("Object doesn't support IDispatchEx\n");
 850         return E_NOTIMPL;
 851     }
 852
 853     V_VT(&retv) = VT_EMPTY;
 854
 855     if(stat->variable)
 856         identifier = SysAllocString(stat->variable->identifier);
 857
 858     while(1) {
 859         hres = IDispatchEx_GetNextDispID(in_obj, fdexEnumDefault, id, &id);
 860         if(FAILED(hres) || hres == S_FALSE)
 861             break;
 862
 863         hres = IDispatchEx_GetMemberName(in_obj, id, &str);
 864         if(FAILED(hres))
 865             break;
 866
 867         TRACE("iter %s\n", debugstr_w(str));
 868
 869         if(stat->variable)
 870             hres = identifier_eval(ctx, identifier, 0, NULL, &exprval);
 871         else
 872             hres = expr_eval(ctx, stat->expr, EXPR_NEWREF, &rt->ei, &exprval);
 873         if(SUCCEEDED(hres)) {
 874             V_VT(&name) = VT_BSTR;
 875             V_BSTR(&name) = str;
 876             hres = put_value(ctx->parser->script, &exprval, &name, &rt->ei);
 877             exprval_release(&exprval);
 878         }
 879         SysFreeString(str);
 880         if(FAILED(hres))
 881             break;
 882
 883         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 884         if(FAILED(hres))
 885             break;
 886
 887         VariantClear(&retv);
 888         retv = tmp;
 889
 890         if(rt->type == RT_CONTINUE)
 891             rt->type = RT_NORMAL;
 892         else if(rt->type != RT_NORMAL)
 893             break;
 894     }
 895
 896     SysFreeString(identifier);
 897     IDispatchEx_Release(in_obj);
 898     if(FAILED(hres)) {
 899         VariantClear(&retv);
 900         return hres;
 901     }
 902
 903     if(rt->type == RT_BREAK)
 904         rt->type = RT_NORMAL;
 905
 906     *ret = retv;
 907     return S_OK;
 908 }
 909
 910 /* ECMA-262 3rd Edition    12.7 */
 911 HRESULT continue_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 912 {
 913     branch_statement_t *stat = (branch_statement_t*)_stat;
 914
 915     TRACE("\n");
 916
 917     if(stat->identifier) {
 918         FIXME("indentifier not implemented\n");
 919         return E_NOTIMPL;
 920     }
 921
 922     rt->type = RT_CONTINUE;
 923     V_VT(ret) = VT_EMPTY;
 924     return S_OK;
 925 }
 926
 927 /* ECMA-262 3rd Edition    12.8 */
 928 HRESULT break_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 929 {
 930     branch_statement_t *stat = (branch_statement_t*)_stat;
 931
 932     TRACE("\n");
 933
 934     if(stat->identifier) {
 935         FIXME("indentifier not implemented\n");
 936         return E_NOTIMPL;
 937     }
 938
 939     rt->type = RT_BREAK;
 940     V_VT(ret) = VT_EMPTY;
 941     return S_OK;
 942 }
 943
 944 /* ECMA-262 3rd Edition    12.9 */
 945 HRESULT return_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 946 {
 947     expression_statement_t *stat = (expression_statement_t*)_stat;
 948     HRESULT hres;
 949
 950     TRACE("\n");
 951
 952     if(stat->expr) {
 953         exprval_t exprval;
 954
 955         hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 956         if(FAILED(hres))
 957             return hres;
 958
 959         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, ret);
 960         exprval_release(&exprval);
 961         if(FAILED(hres))
 962             return hres;
 963     }else {
 964         V_VT(ret) = VT_EMPTY;
 965     }
 966
 967     TRACE("= %s\n", debugstr_variant(ret));
 968     rt->type = RT_RETURN;
 969     return S_OK;
 970 }
 971
 972 /* ECMA-262 3rd Edition    12.10 */
 973 HRESULT with_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 974 {
 975     with_statement_t *stat = (with_statement_t*)_stat;
 976     exprval_t exprval;
 977     IDispatch *disp;
 978     DispatchEx *obj;
 979     VARIANT val;
 980     HRESULT hres;
 981
 982     TRACE("\n");
 983
 984     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 985     if(FAILED(hres))
 986         return hres;
 987
 988     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 989     exprval_release(&exprval);
 990     if(FAILED(hres))
 991         return hres;
 992
 993     hres = to_object(ctx, &val, &disp);
 994     VariantClear(&val);
 995     if(FAILED(hres))
 996         return hres;
 997
 998     obj = iface_to_jsdisp((IUnknown*)disp);
 999     IDispatch_Release(disp);
1000     if(!obj) {
1001         FIXME("disp id not jsdisp\n");
1002         return E_NOTIMPL;
1003     }
1004
1005     hres = scope_push(ctx->scope_chain, obj, &ctx->scope_chain);
1006     jsdisp_release(obj);
1007     if(FAILED(hres))
1008         return hres;
1009
1010     hres = stat_eval(ctx, stat->statement, rt, ret);
1011
1012     scope_pop(&ctx->scope_chain);
1013     return hres;
1014 }
1015
1016 /* ECMA-262 3rd Edition    12.12 */
1017 HRESULT labelled_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
1018 {
1019     FIXME("\n");
1020     return E_NOTIMPL;
1021 }
1022
1023 /* ECMA-262 3rd Edition    12.13 */
1024 HRESULT switch_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1025 {
1026     switch_statement_t *stat = (switch_statement_t*)_stat;
1027     case_clausule_t *iter, *default_clausule = NULL;
1028     statement_t *stat_iter;
1029     VARIANT val, cval;
1030     exprval_t exprval;
1031     BOOL b;
1032     HRESULT hres;
1033
1034     TRACE("\n");
1035
1036     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1037     if(FAILED(hres))
1038         return hres;
1039
1040     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
1041     exprval_release(&exprval);
1042     if(FAILED(hres))
1043         return hres;
1044
1045     for(iter = stat->case_list; iter; iter = iter->next) {
1046         if(!iter->expr) {
1047             default_clausule = iter;
1048             continue;
1049         }
1050
1051         hres = expr_eval(ctx, iter->expr, 0, &rt->ei, &exprval);
1052         if(FAILED(hres))
1053             break;
1054
1055         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &cval);
1056         exprval_release(&exprval);
1057         if(FAILED(hres))
1058             break;
1059
1060         hres = equal2_values(&val, &cval, &b);
1061         VariantClear(&cval);
1062         if(FAILED(hres) || b)
1063             break;
1064     }
1065
1066     VariantClear(&val);
1067     if(FAILED(hres))
1068         return hres;
1069
1070     if(!iter)
1071         iter = default_clausule;
1072
1073     V_VT(&val) = VT_EMPTY;
1074     if(iter) {
1075         VARIANT tmp;
1076
1077         for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
1078             hres = stat_eval(ctx, stat_iter, rt, &tmp);
1079             if(FAILED(hres))
1080                 break;
1081
1082             VariantClear(&val);
1083             val = tmp;
1084
1085             if(rt->type != RT_NORMAL)
1086                 break;
1087         }
1088     }
1089
1090     if(FAILED(hres)) {
1091         VariantClear(&val);
1092         return hres;
1093     }
1094
1095     if(rt->type == RT_BREAK)
1096         rt->type = RT_NORMAL;
1097
1098     *ret = val;
1099     return S_OK;
1100 }
1101
1102 /* ECMA-262 3rd Edition    12.13 */
1103 HRESULT throw_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1104 {
1105     expression_statement_t *stat = (expression_statement_t*)_stat;
1106     exprval_t exprval;
1107     VARIANT val;
1108     HRESULT hres;
1109
1110     TRACE("\n");
1111
1112     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1113     if(FAILED(hres))
1114         return hres;
1115
1116     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
1117     exprval_release(&exprval);
1118     if(FAILED(hres))
1119         return hres;
1120
1121     rt->ei.var = val;
1122     return DISP_E_EXCEPTION;
1123 }
1124
1125 /* ECMA-262 3rd Edition    12.14 */
1126 static HRESULT catch_eval(exec_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
1127 {
1128     DispatchEx *var_disp;
1129     VARIANT ex, val;
1130     HRESULT hres;
1131
1132     ex = rt->ei.var;
1133     memset(&rt->ei, 0, sizeof(jsexcept_t));
1134
1135     hres = create_dispex(ctx->parser->script, NULL, NULL, &var_disp);
1136     if(SUCCEEDED(hres)) {
1137         hres = jsdisp_propput_name(var_disp, block->identifier, ctx->parser->script->lcid,
1138                 &ex, &rt->ei, NULL/*FIXME*/);
1139         if(SUCCEEDED(hres)) {
1140             hres = scope_push(ctx->scope_chain, var_disp, &ctx->scope_chain);
1141             if(SUCCEEDED(hres)) {
1142                 hres = stat_eval(ctx, block->statement, rt, &val);
1143                 scope_pop(&ctx->scope_chain);
1144             }
1145         }
1146
1147         jsdisp_release(var_disp);
1148     }
1149
1150     VariantClear(&ex);
1151     if(FAILED(hres))
1152         return hres;
1153
1154     *ret = val;
1155     return S_OK;
1156 }
1157
1158 /* ECMA-262 3rd Edition    12.14 */
1159 HRESULT try_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1160 {
1161     try_statement_t *stat = (try_statement_t*)_stat;
1162     VARIANT val;
1163     HRESULT hres;
1164
1165     TRACE("\n");
1166
1167     hres = stat_eval(ctx, stat->try_statement, rt, &val);
1168     if(FAILED(hres)) {
1169         TRACE("EXCEPTION\n");
1170         if(!stat->catch_block)
1171             return hres;
1172
1173         hres = catch_eval(ctx, stat->catch_block, rt, &val);
1174         if(FAILED(hres))
1175             return hres;
1176     }
1177
1178     if(stat->finally_statement) {
1179         VariantClear(&val);
1180         hres = stat_eval(ctx, stat->finally_statement, rt, &val);
1181         if(FAILED(hres))
1182             return hres;
1183     }
1184
1185     *ret = val;
1186     return S_OK;
1187 }
1188
1189 static HRESULT return_bool(exprval_t *ret, DWORD b)
1190 {
1191     ret->type = EXPRVAL_VARIANT;
1192     V_VT(&ret->u.var) = VT_BOOL;
1193     V_BOOL(&ret->u.var) = b ? VARIANT_TRUE : VARIANT_FALSE;
1194
1195     return S_OK;
1196 }
1197
1198 static HRESULT get_binary_expr_values(exec_ctx_t *ctx, binary_expression_t *expr, jsexcept_t *ei, VARIANT *lval, VARIANT *rval)
1199 {
1200     exprval_t exprval;
1201     HRESULT hres;
1202
1203     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1204     if(FAILED(hres))
1205         return hres;
1206
1207     hres = exprval_to_value(ctx->parser->script, &exprval, ei, lval);
1208     exprval_release(&exprval);
1209     if(FAILED(hres))
1210         return hres;
1211
1212     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1213     if(SUCCEEDED(hres)) {
1214         hres = exprval_to_value(ctx->parser->script, &exprval, ei, rval);
1215         exprval_release(&exprval);
1216     }
1217
1218     if(FAILED(hres)) {
1219         VariantClear(lval);
1220         return hres;
1221     }
1222
1223     return S_OK;
1224 }
1225
1226 typedef HRESULT (*oper_t)(exec_ctx_t*,VARIANT*,VARIANT*,jsexcept_t*,VARIANT*);
1227
1228 static HRESULT binary_expr_eval(exec_ctx_t *ctx, binary_expression_t *expr, oper_t oper, jsexcept_t *ei,
1229         exprval_t *ret)
1230 {
1231     VARIANT lval, rval, retv;
1232     HRESULT hres;
1233
1234     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1235     if(FAILED(hres))
1236         return hres;
1237
1238     hres = oper(ctx, &lval, &rval, ei, &retv);
1239     VariantClear(&lval);
1240     VariantClear(&rval);
1241     if(FAILED(hres))
1242         return hres;
1243
1244     ret->type = EXPRVAL_VARIANT;
1245     ret->u.var = retv;
1246     return S_OK;
1247 }
1248
1249 /* ECMA-262 3rd Edition    11.13.2 */
1250 static HRESULT assign_oper_eval(exec_ctx_t *ctx, expression_t *lexpr, expression_t *rexpr, oper_t oper,
1251                                 jsexcept_t *ei, exprval_t *ret)
1252 {
1253     VARIANT retv, lval, rval;
1254     exprval_t exprval, exprvalr;
1255     HRESULT hres;
1256
1257     hres = expr_eval(ctx, lexpr, EXPR_NEWREF, ei, &exprval);
1258     if(FAILED(hres))
1259         return hres;
1260
1261     hres = exprval_value(ctx->parser->script, &exprval, ei, &lval);
1262     if(SUCCEEDED(hres)) {
1263         hres = expr_eval(ctx, rexpr, 0, ei, &exprvalr);
1264         if(SUCCEEDED(hres)) {
1265             hres = exprval_value(ctx->parser->script, &exprvalr, ei, &rval);
1266             exprval_release(&exprvalr);
1267         }
1268         if(SUCCEEDED(hres)) {
1269             hres = oper(ctx, &lval, &rval, ei, &retv);
1270             VariantClear(&rval);
1271         }
1272         VariantClear(&lval);
1273     }
1274
1275     if(SUCCEEDED(hres)) {
1276         hres = put_value(ctx->parser->script, &exprval, &retv, ei);
1277         if(FAILED(hres))
1278             VariantClear(&retv);
1279     }
1280     exprval_release(&exprval);
1281
1282     if(FAILED(hres))
1283         return hres;
1284
1285     ret->type = EXPRVAL_VARIANT;
1286     ret->u.var = retv;
1287     return S_OK;
1288 }
1289
1290 /* ECMA-262 3rd Edition    13 */
1291 HRESULT function_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1292 {
1293     function_expression_t *expr = (function_expression_t*)_expr;
1294     VARIANT var;
1295     HRESULT hres;
1296
1297     TRACE("\n");
1298
1299     if(expr->identifier) {
1300         hres = jsdisp_propget_name(ctx->var_disp, expr->identifier, ctx->parser->script->lcid, &var, ei, NULL/*FIXME*/);
1301         if(FAILED(hres))
1302             return hres;
1303     }else {
1304         DispatchEx *dispex;
1305
1306         hres = create_source_function(ctx->parser, expr->parameter_list, expr->source_elements, ctx->scope_chain,
1307                 expr->src_str, expr->src_len, &dispex);
1308         if(FAILED(hres))
1309             return hres;
1310
1311         V_VT(&var) = VT_DISPATCH;
1312         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(dispex);
1313     }
1314
1315     ret->type = EXPRVAL_VARIANT;
1316     ret->u.var = var;
1317     return S_OK;
1318 }
1319
1320 /* ECMA-262 3rd Edition    11.12 */
1321 HRESULT conditional_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1322 {
1323     conditional_expression_t *expr = (conditional_expression_t*)_expr;
1324     exprval_t exprval;
1325     VARIANT_BOOL b;
1326     HRESULT hres;
1327
1328     TRACE("\n");
1329
1330     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1331     if(FAILED(hres))
1332         return hres;
1333
1334     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
1335     exprval_release(&exprval);
1336     if(FAILED(hres))
1337         return hres;
1338
1339     return expr_eval(ctx, b ? expr->true_expression : expr->false_expression, flags, ei, ret);
1340 }
1341
1342 /* ECMA-262 3rd Edition    11.2.1 */
1343 HRESULT array_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1344 {
1345     array_expression_t *expr = (array_expression_t*)_expr;
1346     exprval_t exprval;
1347     VARIANT member, val;
1348     DISPID id;
1349     BSTR str;
1350     IDispatch *obj = NULL;
1351     HRESULT hres;
1352
1353     TRACE("\n");
1354
1355     hres = expr_eval(ctx, expr->member_expr, EXPR_NEWREF, ei, &exprval);
1356     if(FAILED(hres))
1357         return hres;
1358
1359     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1360     exprval_release(&exprval);
1361     if(FAILED(hres))
1362         return hres;
1363
1364     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1365     if(SUCCEEDED(hres)) {
1366         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1367         exprval_release(&exprval);
1368     }
1369
1370     if(SUCCEEDED(hres))
1371         hres = to_object(ctx, &member, &obj);
1372     VariantClear(&member);
1373     if(SUCCEEDED(hres)) {
1374         hres = to_string(ctx->parser->script, &val, ei, &str);
1375         if(SUCCEEDED(hres)) {
1376             if(flags & EXPR_STRREF) {
1377                 ret->type = EXPRVAL_NAMEREF;
1378                 ret->u.nameref.disp = obj;
1379                 ret->u.nameref.name = str;
1380                 return S_OK;
1381             }
1382
1383             hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1384         }
1385
1386         if(SUCCEEDED(hres)) {
1387             exprval_set_idref(ret, obj, id);
1388         }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1389             exprval_init(ret);
1390             hres = S_OK;
1391         }
1392
1393         IDispatch_Release(obj);
1394     }
1395
1396     return hres;
1397 }
1398
1399 /* ECMA-262 3rd Edition    11.2.1 */
1400 HRESULT member_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1401 {
1402     member_expression_t *expr = (member_expression_t*)_expr;
1403     IDispatch *obj = NULL;
1404     exprval_t exprval;
1405     VARIANT member;
1406     DISPID id;
1407     BSTR str;
1408     HRESULT hres;
1409
1410     TRACE("\n");
1411
1412     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1413     if(FAILED(hres))
1414         return hres;
1415
1416     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1417     exprval_release(&exprval);
1418     if(FAILED(hres))
1419         return hres;
1420
1421     hres = to_object(ctx, &member, &obj);
1422     VariantClear(&member);
1423     if(FAILED(hres))
1424         return hres;
1425
1426     str = SysAllocString(expr->identifier);
1427     if(flags & EXPR_STRREF) {
1428         ret->type = EXPRVAL_NAMEREF;
1429         ret->u.nameref.disp = obj;
1430         ret->u.nameref.name = str;
1431         return S_OK;
1432     }
1433
1434     hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1435     SysFreeString(str);
1436     if(SUCCEEDED(hres)) {
1437         exprval_set_idref(ret, obj, id);
1438     }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1439         exprval_init(ret);
1440         hres = S_OK;
1441     }
1442
1443     IDispatch_Release(obj);
1444     return hres;
1445 }
1446
1447 static void free_dp(DISPPARAMS *dp)
1448 {
1449     DWORD i;
1450
1451     for(i=0; i < dp->cArgs; i++)
1452         VariantClear(dp->rgvarg+i);
1453     heap_free(dp->rgvarg);
1454 }
1455
1456 static HRESULT args_to_param(exec_ctx_t *ctx, argument_t *args, jsexcept_t *ei, DISPPARAMS *dp)
1457 {
1458     VARIANTARG *vargs;
1459     exprval_t exprval;
1460     argument_t *iter;
1461     DWORD cnt = 0, i;
1462     HRESULT hres = S_OK;
1463
1464     memset(dp, 0, sizeof(*dp));
1465     if(!args)
1466         return S_OK;
1467
1468     for(iter = args; iter; iter = iter->next)
1469         cnt++;
1470
1471     vargs = heap_alloc_zero(cnt * sizeof(*vargs));
1472     if(!vargs)
1473         return E_OUTOFMEMORY;
1474
1475     for(i = cnt, iter = args; iter; iter = iter->next) {
1476         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
1477         if(FAILED(hres))
1478             break;
1479
1480         hres = exprval_to_value(ctx->parser->script, &exprval, ei, vargs + (--i));
1481         exprval_release(&exprval);
1482         if(FAILED(hres))
1483             break;
1484     }
1485
1486     if(FAILED(hres)) {
1487         free_dp(dp);
1488         return hres;
1489     }
1490
1491     dp->rgvarg = vargs;
1492     dp->cArgs = cnt;
1493     return S_OK;
1494 }
1495
1496 /* ECMA-262 3rd Edition    11.2.2 */
1497 HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1498 {
1499     call_expression_t *expr = (call_expression_t*)_expr;
1500     exprval_t exprval;
1501     VARIANT constr, var;
1502     DISPPARAMS dp;
1503     HRESULT hres;
1504
1505     TRACE("\n");
1506
1507     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1508     if(FAILED(hres))
1509         return hres;
1510
1511     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1512     if(SUCCEEDED(hres))
1513         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &constr);
1514     exprval_release(&exprval);
1515     if(FAILED(hres))
1516         return hres;
1517
1518     if(V_VT(&constr) != VT_DISPATCH) {
1519         FIXME("throw TypeError\n");
1520         VariantClear(&constr);
1521         return E_FAIL;
1522     }
1523
1524     hres = disp_call(V_DISPATCH(&constr), DISPID_VALUE, ctx->parser->script->lcid,
1525                      DISPATCH_CONSTRUCT, &dp, &var, ei, NULL/*FIXME*/);
1526     IDispatch_Release(V_DISPATCH(&constr));
1527     if(FAILED(hres))
1528         return hres;
1529
1530     ret->type = EXPRVAL_VARIANT;
1531     ret->u.var = var;
1532     return S_OK;
1533 }
1534
1535 /* ECMA-262 3rd Edition    11.2.3 */
1536 HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1537 {
1538     call_expression_t *expr = (call_expression_t*)_expr;
1539     VARIANT var;
1540     exprval_t exprval;
1541     DISPPARAMS dp;
1542     HRESULT hres;
1543
1544     TRACE("\n");
1545
1546     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1547     if(FAILED(hres))
1548         return hres;
1549
1550     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1551     if(SUCCEEDED(hres)) {
1552         switch(exprval.type) {
1553         case EXPRVAL_VARIANT:
1554             if(V_VT(&exprval.u.var) != VT_DISPATCH)
1555                 return throw_type_error(ctx->var_disp->ctx, ei, IDS_NO_PROPERTY, NULL);
1556
1557             hres = disp_call(V_DISPATCH(&exprval.u.var), DISPID_VALUE, ctx->parser->script->lcid,
1558                     DISPATCH_METHOD, &dp, flags & EXPR_NOVAL ? NULL : &var, ei, NULL/*FIXME*/);
1559             break;
1560         case EXPRVAL_IDREF:
1561             hres = disp_call(exprval.u.idref.disp, exprval.u.idref.id, ctx->parser->script->lcid,
1562                     DISPATCH_METHOD, &dp, flags & EXPR_NOVAL ? NULL : &var, ei, NULL/*FIXME*/);
1563             break;
1564         default:
1565             FIXME("unimplemented type %d\n", exprval.type);
1566             hres = E_NOTIMPL;
1567         }
1568
1569         free_dp(&dp);
1570     }
1571
1572     exprval_release(&exprval);
1573     if(FAILED(hres))
1574         return hres;
1575
1576     ret->type = EXPRVAL_VARIANT;
1577     if(flags & EXPR_NOVAL) {
1578         V_VT(&ret->u.var) = VT_EMPTY;
1579     }else {
1580         TRACE("= %s\n", debugstr_variant(&var));
1581         ret->u.var = var;
1582     }
1583     return S_OK;
1584 }
1585
1586 /* ECMA-262 3rd Edition    11.1.1 */
1587 HRESULT this_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1588 {
1589     TRACE("\n");
1590
1591     ret->type = EXPRVAL_VARIANT;
1592     V_VT(&ret->u.var) = VT_DISPATCH;
1593     V_DISPATCH(&ret->u.var) = ctx->this_obj;
1594     IDispatch_AddRef(ctx->this_obj);
1595     return S_OK;
1596 }
1597
1598 /* ECMA-262 3rd Edition    10.1.4 */
1599 HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1600 {
1601     identifier_expression_t *expr = (identifier_expression_t*)_expr;
1602     BSTR identifier;
1603     HRESULT hres;
1604
1605     TRACE("\n");
1606
1607     identifier = SysAllocString(expr->identifier);
1608     if(!identifier)
1609         return E_OUTOFMEMORY;
1610
1611     hres = identifier_eval(ctx, identifier, flags, ei, ret);
1612
1613     SysFreeString(identifier);
1614     return hres;
1615 }
1616
1617 /* ECMA-262 3rd Edition    7.8 */
1618 HRESULT literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1619 {
1620     literal_expression_t *expr = (literal_expression_t*)_expr;
1621     VARIANT var;
1622     HRESULT hres;
1623
1624     TRACE("\n");
1625
1626     hres = literal_to_var(expr->literal, &var);
1627     if(FAILED(hres))
1628         return hres;
1629
1630     ret->type = EXPRVAL_VARIANT;
1631     ret->u.var = var;
1632     return S_OK;
1633 }
1634
1635 /* ECMA-262 3rd Edition    11.1.4 */
1636 HRESULT array_literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1637 {
1638     array_literal_expression_t *expr = (array_literal_expression_t*)_expr;
1639     DWORD length = 0, i = 0;
1640     array_element_t *elem;
1641     DispatchEx *array;
1642     exprval_t exprval;
1643     VARIANT val;
1644     HRESULT hres;
1645
1646     TRACE("\n");
1647
1648     for(elem = expr->element_list; elem; elem = elem->next)
1649         length += elem->elision+1;
1650     length += expr->length;
1651
1652     hres = create_array(ctx->parser->script, length, &array);
1653     if(FAILED(hres))
1654         return hres;
1655
1656     for(elem = expr->element_list; elem; elem = elem->next) {
1657         i += elem->elision;
1658
1659         hres = expr_eval(ctx, elem->expr, 0, ei, &exprval);
1660         if(FAILED(hres))
1661             break;
1662
1663         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1664         exprval_release(&exprval);
1665         if(FAILED(hres))
1666             break;
1667
1668         hres = jsdisp_propput_idx(array, i, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1669         VariantClear(&val);
1670         if(FAILED(hres))
1671             break;
1672
1673         i++;
1674     }
1675
1676     if(FAILED(hres)) {
1677         jsdisp_release(array);
1678         return hres;
1679     }
1680
1681     ret->type = EXPRVAL_VARIANT;
1682     V_VT(&ret->u.var) = VT_DISPATCH;
1683     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(array);
1684     return S_OK;
1685 }
1686
1687 /* ECMA-262 3rd Edition    11.1.5 */
1688 HRESULT property_value_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1689 {
1690     property_value_expression_t *expr = (property_value_expression_t*)_expr;
1691     VARIANT val, tmp;
1692     DispatchEx *obj;
1693     prop_val_t *iter;
1694     exprval_t exprval;
1695     BSTR name;
1696     HRESULT hres;
1697
1698     TRACE("\n");
1699
1700     hres = create_object(ctx->parser->script, NULL, &obj);
1701     if(FAILED(hres))
1702         return hres;
1703
1704     for(iter = expr->property_list; iter; iter = iter->next) {
1705         hres = literal_to_var(iter->name, &tmp);
1706         if(FAILED(hres))
1707             break;
1708
1709         hres = to_string(ctx->parser->script, &tmp, ei, &name);
1710         VariantClear(&tmp);
1711         if(FAILED(hres))
1712             break;
1713
1714         hres = expr_eval(ctx, iter->value, 0, ei, &exprval);
1715         if(SUCCEEDED(hres)) {
1716             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1717             exprval_release(&exprval);
1718             if(SUCCEEDED(hres)) {
1719                 hres = jsdisp_propput_name(obj, name, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1720                 VariantClear(&val);
1721             }
1722         }
1723
1724         SysFreeString(name);
1725         if(FAILED(hres))
1726             break;
1727     }
1728
1729     if(FAILED(hres)) {
1730         jsdisp_release(obj);
1731         return hres;
1732     }
1733
1734     ret->type = EXPRVAL_VARIANT;
1735     V_VT(&ret->u.var) = VT_DISPATCH;
1736     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(obj);
1737     return S_OK;
1738 }
1739
1740 /* ECMA-262 3rd Edition    11.14 */
1741 HRESULT comma_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1742 {
1743     binary_expression_t *expr = (binary_expression_t*)_expr;
1744     VARIANT lval, rval;
1745     HRESULT hres;
1746
1747     TRACE("\n");
1748
1749     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1750     if(FAILED(hres))
1751         return hres;
1752
1753     VariantClear(&lval);
1754
1755     ret->type = EXPRVAL_VARIANT;
1756     ret->u.var = rval;
1757     return S_OK;
1758 }
1759
1760 /* ECMA-262 3rd Edition    11.11 */
1761 HRESULT logical_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1762 {
1763     binary_expression_t *expr = (binary_expression_t*)_expr;
1764     exprval_t exprval;
1765     VARIANT_BOOL b;
1766     VARIANT val;
1767     HRESULT hres;
1768
1769     TRACE("\n");
1770
1771     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1772     if(FAILED(hres))
1773         return hres;
1774
1775     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1776     exprval_release(&exprval);
1777     if(FAILED(hres))
1778         return hres;
1779
1780     hres = to_boolean(&val, &b);
1781     if(SUCCEEDED(hres) && b) {
1782         ret->type = EXPRVAL_VARIANT;
1783         ret->u.var = val;
1784         return S_OK;
1785     }
1786
1787     VariantClear(&val);
1788     if(FAILED(hres))
1789         return hres;
1790
1791     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1792     if(FAILED(hres))
1793         return hres;
1794
1795     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1796     exprval_release(&exprval);
1797     if(FAILED(hres))
1798         return hres;
1799
1800     ret->type = EXPRVAL_VARIANT;
1801     ret->u.var = val;
1802     return S_OK;
1803 }
1804
1805 /* ECMA-262 3rd Edition    11.11 */
1806 HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1807 {
1808     binary_expression_t *expr = (binary_expression_t*)_expr;
1809     exprval_t exprval;
1810     VARIANT_BOOL b;
1811     VARIANT val;
1812     HRESULT hres;
1813
1814     TRACE("\n");
1815
1816     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1817     if(FAILED(hres))
1818         return hres;
1819
1820     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1821     exprval_release(&exprval);
1822     if(FAILED(hres))
1823         return hres;
1824
1825     hres = to_boolean(&val, &b);
1826     if(SUCCEEDED(hres) && !b) {
1827         ret->type = EXPRVAL_VARIANT;
1828         ret->u.var = val;
1829         return S_OK;
1830     }
1831
1832     VariantClear(&val);
1833     if(FAILED(hres))
1834         return hres;
1835
1836     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1837     if(FAILED(hres))
1838         return hres;
1839
1840     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1841     exprval_release(&exprval);
1842     if(FAILED(hres))
1843         return hres;
1844
1845     ret->type = EXPRVAL_VARIANT;
1846     ret->u.var = val;
1847     return S_OK;
1848 }
1849
1850 /* ECMA-262 3rd Edition    11.10 */
1851 static HRESULT bitor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1852 {
1853     INT li, ri;
1854     HRESULT hres;
1855
1856     hres = to_int32(ctx->parser->script, lval, ei, &li);
1857     if(FAILED(hres))
1858         return hres;
1859
1860     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1861     if(FAILED(hres))
1862         return hres;
1863
1864     V_VT(retv) = VT_I4;
1865     V_I4(retv) = li|ri;
1866     return S_OK;
1867 }
1868
1869 /* ECMA-262 3rd Edition    11.10 */
1870 HRESULT binary_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1871 {
1872     binary_expression_t *expr = (binary_expression_t*)_expr;
1873
1874     TRACE("\n");
1875
1876     return binary_expr_eval(ctx, expr, bitor_eval, ei, ret);
1877 }
1878
1879 /* ECMA-262 3rd Edition    11.10 */
1880 static HRESULT xor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1881 {
1882     INT li, ri;
1883     HRESULT hres;
1884
1885     hres = to_int32(ctx->parser->script, lval, ei, &li);
1886     if(FAILED(hres))
1887         return hres;
1888
1889     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1890     if(FAILED(hres))
1891         return hres;
1892
1893     V_VT(retv) = VT_I4;
1894     V_I4(retv) = li^ri;
1895     return S_OK;
1896 }
1897
1898 /* ECMA-262 3rd Edition    11.10 */
1899 HRESULT binary_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1900 {
1901     binary_expression_t *expr = (binary_expression_t*)_expr;
1902
1903     TRACE("\n");
1904
1905     return binary_expr_eval(ctx, expr, xor_eval, ei, ret);
1906 }
1907
1908 /* ECMA-262 3rd Edition    11.10 */
1909 static HRESULT bitand_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1910 {
1911     INT li, ri;
1912     HRESULT hres;
1913
1914     hres = to_int32(ctx->parser->script, lval, ei, &li);
1915     if(FAILED(hres))
1916         return hres;
1917
1918     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1919     if(FAILED(hres))
1920         return hres;
1921
1922     V_VT(retv) = VT_I4;
1923     V_I4(retv) = li&ri;
1924     return S_OK;
1925 }
1926
1927 /* ECMA-262 3rd Edition    11.10 */
1928 HRESULT binary_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1929 {
1930     binary_expression_t *expr = (binary_expression_t*)_expr;
1931
1932     TRACE("\n");
1933
1934     return binary_expr_eval(ctx, expr, bitand_eval, ei, ret);
1935 }
1936
1937 /* ECMA-262 3rd Edition    11.8.6 */
1938 HRESULT instanceof_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1939 {
1940     FIXME("\n");
1941     return E_NOTIMPL;
1942 }
1943
1944 /* ECMA-262 3rd Edition    11.8.7 */
1945 HRESULT in_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1946 {
1947     FIXME("\n");
1948     return E_NOTIMPL;
1949 }
1950
1951 /* ECMA-262 3rd Edition    11.6.1 */
1952 static HRESULT add_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1953 {
1954     VARIANT r, l;
1955     HRESULT hres;
1956
1957     hres = to_primitive(ctx->parser->script, lval, ei, &l, NO_HINT);
1958     if(FAILED(hres))
1959         return hres;
1960
1961     hres = to_primitive(ctx->parser->script, rval, ei, &r, NO_HINT);
1962     if(FAILED(hres)) {
1963         VariantClear(&l);
1964         return hres;
1965     }
1966
1967     if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
1968         BSTR lstr = NULL, rstr = NULL;
1969
1970         if(V_VT(&l) == VT_BSTR)
1971             lstr = V_BSTR(&l);
1972         else
1973             hres = to_string(ctx->parser->script, &l, ei, &lstr);
1974
1975         if(SUCCEEDED(hres)) {
1976             if(V_VT(&r) == VT_BSTR)
1977                 rstr = V_BSTR(&r);
1978             else
1979                 hres = to_string(ctx->parser->script, &r, ei, &rstr);
1980         }
1981
1982         if(SUCCEEDED(hres)) {
1983             int len1, len2;
1984
1985             len1 = SysStringLen(lstr);
1986             len2 = SysStringLen(rstr);
1987
1988             V_VT(retv) = VT_BSTR;
1989             V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
1990             memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
1991             memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
1992         }
1993
1994         if(V_VT(&l) != VT_BSTR)
1995             SysFreeString(lstr);
1996         if(V_VT(&r) != VT_BSTR)
1997             SysFreeString(rstr);
1998     }else {
1999         VARIANT nl, nr;
2000
2001         hres = to_number(ctx->parser->script, &l, ei, &nl);
2002         if(SUCCEEDED(hres)) {
2003             hres = to_number(ctx->parser->script, &r, ei, &nr);
2004             if(SUCCEEDED(hres))
2005                 num_set_val(retv, num_val(&nl) + num_val(&nr));
2006         }
2007     }
2008
2009     VariantClear(&r);
2010     VariantClear(&l);
2011     return hres;
2012 }
2013
2014 /* ECMA-262 3rd Edition    11.6.1 */
2015 HRESULT add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2016 {
2017     binary_expression_t *expr = (binary_expression_t*)_expr;
2018
2019     TRACE("\n");
2020
2021     return binary_expr_eval(ctx, expr, add_eval, ei, ret);
2022 }
2023
2024 /* ECMA-262 3rd Edition    11.6.2 */
2025 static HRESULT sub_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2026 {
2027     VARIANT lnum, rnum;
2028     HRESULT hres;
2029
2030     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2031     if(FAILED(hres))
2032         return hres;
2033
2034     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2035     if(FAILED(hres))
2036         return hres;
2037
2038     num_set_val(retv, num_val(&lnum) - num_val(&rnum));
2039     return S_OK;
2040 }
2041
2042 /* ECMA-262 3rd Edition    11.6.2 */
2043 HRESULT sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2044 {
2045     binary_expression_t *expr = (binary_expression_t*)_expr;
2046
2047     TRACE("\n");
2048
2049     return binary_expr_eval(ctx, expr, sub_eval, ei, ret);
2050 }
2051
2052 /* ECMA-262 3rd Edition    11.5.1 */
2053 static HRESULT mul_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2054 {
2055     VARIANT lnum, rnum;
2056     HRESULT hres;
2057
2058     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2059     if(FAILED(hres))
2060         return hres;
2061
2062     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2063     if(FAILED(hres))
2064         return hres;
2065
2066     num_set_val(retv, num_val(&lnum) * num_val(&rnum));
2067     return S_OK;
2068 }
2069
2070 /* ECMA-262 3rd Edition    11.5.1 */
2071 HRESULT mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2072 {
2073     binary_expression_t *expr = (binary_expression_t*)_expr;
2074
2075     TRACE("\n");
2076
2077     return binary_expr_eval(ctx, expr, mul_eval, ei, ret);
2078 }
2079
2080 /* ECMA-262 3rd Edition    11.5.2 */
2081 static HRESULT div_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2082 {
2083     VARIANT lnum, rnum;
2084     HRESULT hres;
2085
2086     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2087     if(FAILED(hres))
2088         return hres;
2089
2090     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2091     if(FAILED(hres))
2092         return hres;
2093
2094     num_set_val(retv, num_val(&lnum) / num_val(&rnum));
2095     return S_OK;
2096 }
2097
2098 /* ECMA-262 3rd Edition    11.5.2 */
2099 HRESULT div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2100 {
2101     binary_expression_t *expr = (binary_expression_t*)_expr;
2102
2103     TRACE("\n");
2104
2105     return binary_expr_eval(ctx, expr, div_eval, ei, ret);
2106 }
2107
2108 /* ECMA-262 3rd Edition    11.5.3 */
2109 static HRESULT mod_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2110 {
2111     VARIANT lnum, rnum;
2112     HRESULT hres;
2113
2114     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2115     if(FAILED(hres))
2116         return hres;
2117
2118     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2119     if(FAILED(hres))
2120         return hres;
2121
2122     num_set_val(retv, fmod(num_val(&lnum), num_val(&rnum)));
2123     return S_OK;
2124 }
2125
2126 /* ECMA-262 3rd Edition    11.5.3 */
2127 HRESULT mod_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2128 {
2129     binary_expression_t *expr = (binary_expression_t*)_expr;
2130
2131     TRACE("\n");
2132
2133     return binary_expr_eval(ctx, expr, mod_eval, ei, ret);
2134 }
2135
2136 /* ECMA-262 3rd Edition    11.4.2 */
2137 HRESULT delete_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2138 {
2139     unary_expression_t *expr = (unary_expression_t*)_expr;
2140     VARIANT_BOOL b = VARIANT_FALSE;
2141     exprval_t exprval;
2142     HRESULT hres;
2143
2144     TRACE("\n");
2145
2146     hres = expr_eval(ctx, expr->expression, EXPR_STRREF, ei, &exprval);
2147     if(FAILED(hres))
2148         return hres;
2149
2150     switch(exprval.type) {
2151     case EXPRVAL_IDREF: {
2152         IDispatchEx *dispex;
2153
2154         hres = IDispatch_QueryInterface(exprval.u.nameref.disp, &IID_IDispatchEx, (void**)&dispex);
2155         if(SUCCEEDED(hres)) {
2156             hres = IDispatchEx_DeleteMemberByDispID(dispex, exprval.u.idref.id);
2157             b = VARIANT_TRUE;
2158             IDispatchEx_Release(dispex);
2159         }
2160         break;
2161     }
2162     case EXPRVAL_NAMEREF: {
2163         IDispatchEx *dispex;
2164
2165         hres = IDispatch_QueryInterface(exprval.u.nameref.disp, &IID_IDispatchEx, (void**)&dispex);
2166         if(SUCCEEDED(hres)) {
2167             hres = IDispatchEx_DeleteMemberByName(dispex, exprval.u.nameref.name, fdexNameCaseSensitive);
2168             b = VARIANT_TRUE;
2169             IDispatchEx_Release(dispex);
2170         }
2171         break;
2172     }
2173     default:
2174         FIXME("unsupported type %d\n", exprval.type);
2175         hres = E_NOTIMPL;
2176     }
2177
2178     exprval_release(&exprval);
2179     if(FAILED(hres))
2180         return hres;
2181
2182     return return_bool(ret, b);
2183 }
2184
2185 /* ECMA-262 3rd Edition    11.4.2 */
2186 HRESULT void_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2187 {
2188     unary_expression_t *expr = (unary_expression_t*)_expr;
2189     exprval_t exprval;
2190     VARIANT tmp;
2191     HRESULT hres;
2192
2193     TRACE("\n");
2194
2195     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2196     if(FAILED(hres))
2197         return hres;
2198
2199     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &tmp);
2200     exprval_release(&exprval);
2201     if(FAILED(hres))
2202         return hres;
2203
2204     VariantClear(&tmp);
2205
2206     ret->type = EXPRVAL_VARIANT;
2207     V_VT(&ret->u.var) = VT_EMPTY;
2208     return S_OK;
2209 }
2210
2211 /* ECMA-262 3rd Edition    11.4.3 */
2212 HRESULT typeof_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2213 {
2214     unary_expression_t *expr = (unary_expression_t*)_expr;
2215     const WCHAR *str;
2216     exprval_t exprval;
2217     VARIANT val;
2218     HRESULT hres;
2219
2220     static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
2221     static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
2222     static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
2223     static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
2224     static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
2225     static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
2226
2227     TRACE("\n");
2228
2229     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2230     if(FAILED(hres))
2231         return hres;
2232
2233     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2234     exprval_release(&exprval);
2235     if(FAILED(hres))
2236         return hres;
2237
2238     switch(V_VT(&val)) {
2239     case VT_EMPTY:
2240         str = undefinedW;
2241         break;
2242     case VT_NULL:
2243         str = objectW;
2244         break;
2245     case VT_BOOL:
2246         str = booleanW;
2247         break;
2248     case VT_I4:
2249     case VT_R8:
2250         str = numberW;
2251         break;
2252     case VT_BSTR:
2253         str = stringW;
2254         break;
2255     case VT_DISPATCH: {
2256         DispatchEx *dispex;
2257
2258         dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(&val));
2259         if(dispex) {
2260             str = dispex->builtin_info->class == JSCLASS_FUNCTION ? functionW : objectW;
2261             IDispatchEx_Release(_IDispatchEx_(dispex));
2262         }else {
2263             str = objectW;
2264         }
2265         break;
2266     }
2267     default:
2268         FIXME("unhandled vt %d\n", V_VT(&val));
2269         VariantClear(&val);
2270         return E_NOTIMPL;
2271     }
2272
2273     VariantClear(&val);
2274
2275     ret->type = EXPRVAL_VARIANT;
2276     V_VT(&ret->u.var) = VT_BSTR;
2277     V_BSTR(&ret->u.var) = SysAllocString(str);
2278     return S_OK;
2279 }
2280
2281 /* ECMA-262 3rd Edition    11.4.7 */
2282 HRESULT minus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2283 {
2284     unary_expression_t *expr = (unary_expression_t*)_expr;
2285     exprval_t exprval;
2286     VARIANT val, num;
2287     HRESULT hres;
2288
2289     TRACE("\n");
2290
2291     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2292     if(FAILED(hres))
2293         return hres;
2294
2295     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2296     exprval_release(&exprval);
2297     if(FAILED(hres))
2298         return hres;
2299
2300     hres = to_number(ctx->parser->script, &val, ei, &num);
2301     VariantClear(&val);
2302     if(FAILED(hres))
2303         return hres;
2304
2305     ret->type = EXPRVAL_VARIANT;
2306     num_set_val(&ret->u.var, -num_val(&num));
2307     return S_OK;
2308 }
2309
2310 /* ECMA-262 3rd Edition    11.4.6 */
2311 HRESULT plus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2312 {
2313     unary_expression_t *expr = (unary_expression_t*)_expr;
2314     exprval_t exprval;
2315     VARIANT val, num;
2316     HRESULT hres;
2317
2318     TRACE("\n");
2319
2320     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2321     if(FAILED(hres))
2322         return hres;
2323
2324     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2325     exprval_release(&exprval);
2326     if(FAILED(hres))
2327         return hres;
2328
2329     hres = to_number(ctx->parser->script, &val, ei, &num);
2330     if(FAILED(hres))
2331         return hres;
2332
2333     ret->type = EXPRVAL_VARIANT;
2334     ret->u.var = num;
2335     return S_OK;
2336 }
2337
2338 /* ECMA-262 3rd Edition    11.3.1 */
2339 HRESULT post_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2340 {
2341     unary_expression_t *expr = (unary_expression_t*)_expr;
2342     VARIANT val, num;
2343     exprval_t exprval;
2344     HRESULT hres;
2345
2346     TRACE("\n");
2347
2348     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2349     if(FAILED(hres))
2350         return hres;
2351
2352     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2353     if(SUCCEEDED(hres)) {
2354         hres = to_number(ctx->parser->script, &val, ei, &num);
2355         VariantClear(&val);
2356     }
2357
2358     if(SUCCEEDED(hres)) {
2359         VARIANT inc;
2360         num_set_val(&inc, num_val(&num)+1.0);
2361         hres = put_value(ctx->parser->script, &exprval, &inc, ei);
2362     }
2363
2364     exprval_release(&exprval);
2365     if(FAILED(hres))
2366         return hres;
2367
2368     ret->type = EXPRVAL_VARIANT;
2369     ret->u.var = num;
2370     return S_OK;
2371 }
2372
2373 /* ECMA-262 3rd Edition    11.3.2 */
2374 HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2375 {
2376     unary_expression_t *expr = (unary_expression_t*)_expr;
2377     VARIANT val, num;
2378     exprval_t exprval;
2379     HRESULT hres;
2380
2381     TRACE("\n");
2382
2383     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2384     if(FAILED(hres))
2385         return hres;
2386
2387     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2388     if(SUCCEEDED(hres)) {
2389         hres = to_number(ctx->parser->script, &val, ei, &num);
2390         VariantClear(&val);
2391     }
2392
2393     if(SUCCEEDED(hres)) {
2394         VARIANT dec;
2395         num_set_val(&dec, num_val(&num)-1.0);
2396         hres = put_value(ctx->parser->script, &exprval, &dec, ei);
2397     }
2398
2399     exprval_release(&exprval);
2400     if(FAILED(hres))
2401         return hres;
2402
2403     ret->type = EXPRVAL_VARIANT;
2404     ret->u.var = num;
2405     return S_OK;
2406 }
2407
2408 /* ECMA-262 3rd Edition    11.4.4 */
2409 HRESULT pre_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2410 {
2411     unary_expression_t *expr = (unary_expression_t*)_expr;
2412     VARIANT val, num;
2413     exprval_t exprval;
2414     HRESULT hres;
2415
2416     TRACE("\n");
2417
2418     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2419     if(FAILED(hres))
2420         return hres;
2421
2422     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2423     if(SUCCEEDED(hres)) {
2424         hres = to_number(ctx->parser->script, &val, ei, &num);
2425         VariantClear(&val);
2426     }
2427
2428     if(SUCCEEDED(hres)) {
2429         num_set_val(&val, num_val(&num)+1.0);
2430         hres = put_value(ctx->parser->script, &exprval, &val, ei);
2431     }
2432
2433     exprval_release(&exprval);
2434     if(FAILED(hres))
2435         return hres;
2436
2437     ret->type = EXPRVAL_VARIANT;
2438     ret->u.var = val;
2439     return S_OK;
2440 }
2441
2442 /* ECMA-262 3rd Edition    11.4.5 */
2443 HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2444 {
2445     unary_expression_t *expr = (unary_expression_t*)_expr;
2446     VARIANT val, num;
2447     exprval_t exprval;
2448     HRESULT hres;
2449
2450     TRACE("\n");
2451
2452     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2453     if(FAILED(hres))
2454         return hres;
2455
2456     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2457     if(SUCCEEDED(hres)) {
2458         hres = to_number(ctx->parser->script, &val, ei, &num);
2459         VariantClear(&val);
2460     }
2461
2462     if(SUCCEEDED(hres)) {
2463         num_set_val(&val, num_val(&num)-1.0);
2464         hres = put_value(ctx->parser->script, &exprval, &val, ei);
2465     }
2466
2467     exprval_release(&exprval);
2468     if(FAILED(hres))
2469         return hres;
2470
2471     ret->type = EXPRVAL_VARIANT;
2472     ret->u.var = val;
2473     return S_OK;
2474 }
2475
2476 /* ECMA-262 3rd Edition    11.9.3 */
2477 static HRESULT equal_values(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2478 {
2479     if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
2480        return equal2_values(lval, rval, ret);
2481
2482     /* FIXME: NULL disps should be handled in more general way */
2483     if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
2484         VARIANT v;
2485         V_VT(&v) = VT_NULL;
2486         return equal_values(ctx, &v, rval, ei, ret);
2487     }
2488
2489     if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
2490         VARIANT v;
2491         V_VT(&v) = VT_NULL;
2492         return equal_values(ctx, lval, &v, ei, ret);
2493     }
2494
2495     if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
2496        (V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
2497         *ret = TRUE;
2498         return S_OK;
2499     }
2500
2501     if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
2502         VARIANT v;
2503         HRESULT hres;
2504
2505         hres = to_number(ctx->parser->script, lval, ei, &v);
2506         if(FAILED(hres))
2507             return hres;
2508
2509         return equal_values(ctx, &v, rval, ei, ret);
2510     }
2511
2512     if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
2513         VARIANT v;
2514         HRESULT hres;
2515
2516         hres = to_number(ctx->parser->script, rval, ei, &v);
2517         if(FAILED(hres))
2518             return hres;
2519
2520         return equal_values(ctx, lval, &v, ei, ret);
2521     }
2522
2523     if(V_VT(rval) == VT_BOOL) {
2524         VARIANT v;
2525
2526         V_VT(&v) = VT_I4;
2527         V_I4(&v) = V_BOOL(rval) ? 1 : 0;
2528         return equal_values(ctx, lval, &v, ei, ret);
2529     }
2530
2531     if(V_VT(lval) == VT_BOOL) {
2532         VARIANT v;
2533
2534         V_VT(&v) = VT_I4;
2535         V_I4(&v) = V_BOOL(lval) ? 1 : 0;
2536         return equal_values(ctx, &v, rval, ei, ret);
2537     }
2538
2539
2540     if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
2541         VARIANT v;
2542         HRESULT hres;
2543
2544         hres = to_primitive(ctx->parser->script, rval, ei, &v, NO_HINT);
2545         if(FAILED(hres))
2546             return hres;
2547
2548         hres = equal_values(ctx, lval, &v, ei, ret);
2549
2550         VariantClear(&v);
2551         return hres;
2552     }
2553
2554
2555     if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
2556         VARIANT v;
2557         HRESULT hres;
2558
2559         hres = to_primitive(ctx->parser->script, lval, ei, &v, NO_HINT);
2560         if(FAILED(hres))
2561             return hres;
2562
2563         hres = equal_values(ctx, &v, rval, ei, ret);
2564
2565         VariantClear(&v);
2566         return hres;
2567     }
2568
2569
2570     *ret = FALSE;
2571     return S_OK;
2572 }
2573
2574 /* ECMA-262 3rd Edition    11.9.1 */
2575 HRESULT equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2576 {
2577     binary_expression_t *expr = (binary_expression_t*)_expr;
2578     VARIANT rval, lval;
2579     BOOL b;
2580     HRESULT hres;
2581
2582     TRACE("\n");
2583
2584     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2585     if(FAILED(hres))
2586         return hres;
2587
2588     hres = equal_values(ctx, &rval, &lval, ei, &b);
2589     if(FAILED(hres))
2590         return hres;
2591
2592     return return_bool(ret, b);
2593 }
2594
2595 /* ECMA-262 3rd Edition    11.9.4 */
2596 HRESULT equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2597 {
2598     binary_expression_t *expr = (binary_expression_t*)_expr;
2599     VARIANT rval, lval;
2600     BOOL b;
2601     HRESULT hres;
2602
2603     TRACE("\n");
2604
2605     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2606     if(FAILED(hres))
2607         return hres;
2608
2609     hres = equal2_values(&rval, &lval, &b);
2610     if(FAILED(hres))
2611         return hres;
2612
2613     return return_bool(ret, b);
2614 }
2615
2616 /* ECMA-262 3rd Edition    11.9.2 */
2617 HRESULT not_equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2618 {
2619     binary_expression_t *expr = (binary_expression_t*)_expr;
2620     VARIANT rval, lval;
2621     BOOL b;
2622     HRESULT hres;
2623
2624     TRACE("\n");
2625
2626     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2627     if(FAILED(hres))
2628         return hres;
2629
2630     hres = equal_values(ctx, &lval, &rval, ei, &b);
2631     if(FAILED(hres))
2632         return hres;
2633
2634     return return_bool(ret, !b);
2635 }
2636
2637 /* ECMA-262 3rd Edition    11.9.5 */
2638 HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2639 {
2640     binary_expression_t *expr = (binary_expression_t*)_expr;
2641     VARIANT rval, lval;
2642     BOOL b;
2643     HRESULT hres;
2644
2645     TRACE("\n");
2646
2647     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2648     if(FAILED(hres))
2649         return hres;
2650
2651     hres = equal2_values(&lval, &rval, &b);
2652     if(FAILED(hres))
2653         return hres;
2654
2655     return return_bool(ret, !b);
2656 }
2657
2658 /* ECMA-262 3rd Edition    11.8.5 */
2659 static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, BOOL greater, jsexcept_t *ei, BOOL *ret)
2660 {
2661     VARIANT l, r, ln, rn;
2662     HRESULT hres;
2663
2664     hres = to_primitive(ctx->parser->script, lval, ei, &l, NO_HINT);
2665     if(FAILED(hres))
2666         return hres;
2667
2668     hres = to_primitive(ctx->parser->script, rval, ei, &r, NO_HINT);
2669     if(FAILED(hres)) {
2670         VariantClear(&l);
2671         return hres;
2672     }
2673
2674     if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
2675         *ret = (strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0) ^ greater;
2676         SysFreeString(V_BSTR(&l));
2677         SysFreeString(V_BSTR(&r));
2678         return S_OK;
2679     }
2680
2681     hres = to_number(ctx->parser->script, &l, ei, &ln);
2682     VariantClear(&l);
2683     if(SUCCEEDED(hres))
2684         hres = to_number(ctx->parser->script, &r, ei, &rn);
2685     VariantClear(&r);
2686     if(FAILED(hres))
2687         return hres;
2688
2689     if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4) {
2690         *ret = (V_I4(&ln) < V_I4(&rn)) ^ greater;
2691     }else  {
2692         DOUBLE ld = num_val(&ln);
2693         DOUBLE rd = num_val(&rn);
2694
2695         *ret = !isnan(ld) && !isnan(rd) && ((ld < rd) ^ greater);
2696     }
2697
2698     return S_OK;
2699 }
2700
2701 /* ECMA-262 3rd Edition    11.8.1 */
2702 HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2703 {
2704     binary_expression_t *expr = (binary_expression_t*)_expr;
2705     VARIANT rval, lval;
2706     BOOL b;
2707     HRESULT hres;
2708
2709     TRACE("\n");
2710
2711     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2712     if(FAILED(hres))
2713         return hres;
2714
2715     hres = less_eval(ctx, &lval, &rval, FALSE, ei, &b);
2716     VariantClear(&lval);
2717     VariantClear(&rval);
2718     if(FAILED(hres))
2719         return hres;
2720
2721     return return_bool(ret, b);
2722 }
2723
2724 /* ECMA-262 3rd Edition    11.8.3 */
2725 HRESULT lesseq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2726 {
2727     binary_expression_t *expr = (binary_expression_t*)_expr;
2728     VARIANT rval, lval;
2729     BOOL b;
2730     HRESULT hres;
2731
2732     TRACE("\n");
2733
2734     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2735     if(FAILED(hres))
2736         return hres;
2737
2738     hres = less_eval(ctx, &rval, &lval, TRUE, ei, &b);
2739     VariantClear(&lval);
2740     VariantClear(&rval);
2741     if(FAILED(hres))
2742         return hres;
2743
2744     return return_bool(ret, b);
2745 }
2746
2747 /* ECMA-262 3rd Edition    11.8.2 */
2748 HRESULT greater_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2749 {
2750     binary_expression_t *expr = (binary_expression_t*)_expr;
2751     VARIANT rval, lval;
2752     BOOL b;
2753     HRESULT hres;
2754
2755     TRACE("\n");
2756
2757     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2758     if(FAILED(hres))
2759         return hres;
2760
2761     hres = less_eval(ctx, &rval, &lval, FALSE, ei, &b);
2762     VariantClear(&lval);
2763     VariantClear(&rval);
2764     if(FAILED(hres))
2765         return hres;
2766
2767     return return_bool(ret, b);
2768 }
2769
2770 /* ECMA-262 3rd Edition    11.8.4 */
2771 HRESULT greatereq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2772 {
2773     binary_expression_t *expr = (binary_expression_t*)_expr;
2774     VARIANT rval, lval;
2775     BOOL b;
2776     HRESULT hres;
2777
2778     TRACE("\n");
2779
2780     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2781     if(FAILED(hres))
2782         return hres;
2783
2784     hres = less_eval(ctx, &lval, &rval, TRUE, ei, &b);
2785     VariantClear(&lval);
2786     VariantClear(&rval);
2787     if(FAILED(hres))
2788         return hres;
2789
2790     return return_bool(ret, b);
2791 }
2792
2793 /* ECMA-262 3rd Edition    11.4.8 */
2794 HRESULT binary_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2795 {
2796     unary_expression_t *expr = (unary_expression_t*)_expr;
2797     exprval_t exprval;
2798     VARIANT val;
2799     INT i;
2800     HRESULT hres;
2801
2802     TRACE("\n");
2803
2804     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2805     if(FAILED(hres))
2806         return hres;
2807
2808     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2809     exprval_release(&exprval);
2810     if(FAILED(hres))
2811         return hres;
2812
2813     hres = to_int32(ctx->parser->script, &val, ei, &i);
2814     if(FAILED(hres))
2815         return hres;
2816
2817     ret->type = EXPRVAL_VARIANT;
2818     V_VT(&ret->u.var) = VT_I4;
2819     V_I4(&ret->u.var) = ~i;
2820     return S_OK;
2821 }
2822
2823 /* ECMA-262 3rd Edition    11.4.9 */
2824 HRESULT logical_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2825 {
2826     unary_expression_t *expr = (unary_expression_t*)_expr;
2827     exprval_t exprval;
2828     VARIANT_BOOL b;
2829     HRESULT hres;
2830
2831     TRACE("\n");
2832
2833     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2834     if(FAILED(hres))
2835         return hres;
2836
2837     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
2838     exprval_release(&exprval);
2839     if(FAILED(hres))
2840         return hres;
2841
2842     return return_bool(ret, !b);
2843 }
2844
2845 /* ECMA-262 3rd Edition    11.7.1 */
2846 static HRESULT lshift_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2847 {
2848     DWORD ri;
2849     INT li;
2850     HRESULT hres;
2851
2852     hres = to_int32(ctx->parser->script, lval, ei, &li);
2853     if(FAILED(hres))
2854         return hres;
2855
2856     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2857     if(FAILED(hres))
2858         return hres;
2859
2860     V_VT(retv) = VT_I4;
2861     V_I4(retv) = li << (ri&0x1f);
2862     return S_OK;
2863 }
2864
2865 /* ECMA-262 3rd Edition    11.7.1 */
2866 HRESULT left_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2867 {
2868     binary_expression_t *expr = (binary_expression_t*)_expr;
2869
2870     TRACE("\n");
2871
2872     return binary_expr_eval(ctx, expr, lshift_eval, ei, ret);
2873 }
2874
2875 /* ECMA-262 3rd Edition    11.7.2 */
2876 static HRESULT rshift_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2877 {
2878     DWORD ri;
2879     INT li;
2880     HRESULT hres;
2881
2882     hres = to_int32(ctx->parser->script, lval, ei, &li);
2883     if(FAILED(hres))
2884         return hres;
2885
2886     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2887     if(FAILED(hres))
2888         return hres;
2889
2890     V_VT(retv) = VT_I4;
2891     V_I4(retv) = li >> (ri&0x1f);
2892     return S_OK;
2893 }
2894
2895 /* ECMA-262 3rd Edition    11.7.2 */
2896 HRESULT right_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2897 {
2898     binary_expression_t *expr = (binary_expression_t*)_expr;
2899
2900     TRACE("\n");
2901
2902     return binary_expr_eval(ctx, expr, rshift_eval, ei, ret);
2903 }
2904
2905 /* ECMA-262 3rd Edition    11.7.3 */
2906 static HRESULT rshift2_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2907 {
2908     DWORD li, ri;
2909     HRESULT hres;
2910
2911     hres = to_uint32(ctx->parser->script, lval, ei, &li);
2912     if(FAILED(hres))
2913         return hres;
2914
2915     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2916     if(FAILED(hres))
2917         return hres;
2918
2919     V_VT(retv) = VT_I4;
2920     V_I4(retv) = li >> (ri&0x1f);
2921     return S_OK;
2922 }
2923
2924 /* ECMA-262 3rd Edition    11.7.3 */
2925 HRESULT right2_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2926 {
2927     binary_expression_t *expr = (binary_expression_t*)_expr;
2928
2929     TRACE("\n");
2930
2931     return binary_expr_eval(ctx, expr, rshift2_eval, ei, ret);
2932 }
2933
2934 /* ECMA-262 3rd Edition    11.13.1 */
2935 HRESULT assign_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2936 {
2937     binary_expression_t *expr = (binary_expression_t*)_expr;
2938     exprval_t exprval, exprvalr;
2939     VARIANT rval;
2940     HRESULT hres;
2941
2942     TRACE("\n");
2943
2944     hres = expr_eval(ctx, expr->expression1, EXPR_NEWREF, ei, &exprval);
2945     if(FAILED(hres))
2946         return hres;
2947
2948     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprvalr);
2949     if(SUCCEEDED(hres)) {
2950         hres = exprval_to_value(ctx->parser->script, &exprvalr, ei, &rval);
2951         exprval_release(&exprvalr);
2952     }
2953
2954     if(SUCCEEDED(hres))
2955         hres = put_value(ctx->parser->script, &exprval, &rval, ei);
2956
2957     exprval_release(&exprval);
2958     if(FAILED(hres))
2959         return hres;
2960
2961     ret->type = EXPRVAL_VARIANT;
2962     ret->u.var = rval;
2963     return S_OK;
2964 }
2965
2966 /* ECMA-262 3rd Edition    11.13.2 */
2967 HRESULT assign_lshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2968 {
2969     binary_expression_t *expr = (binary_expression_t*)_expr;
2970
2971     TRACE("\n");
2972
2973     return assign_oper_eval(ctx, expr->expression1, expr->expression2, lshift_eval, ei, ret);
2974 }
2975
2976 /* ECMA-262 3rd Edition    11.13.2 */
2977 HRESULT assign_rshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2978 {
2979     binary_expression_t *expr = (binary_expression_t*)_expr;
2980
2981     TRACE("\n");
2982
2983     return assign_oper_eval(ctx, expr->expression1, expr->expression2, rshift_eval, ei, ret);
2984 }
2985
2986 /* ECMA-262 3rd Edition    11.13.2 */
2987 HRESULT assign_rrshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2988 {
2989     binary_expression_t *expr = (binary_expression_t*)_expr;
2990
2991     TRACE("\n");
2992
2993     return assign_oper_eval(ctx, expr->expression1, expr->expression2, rshift2_eval, ei, ret);
2994 }
2995
2996 /* ECMA-262 3rd Edition    11.13.2 */
2997 HRESULT assign_add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2998 {
2999     binary_expression_t *expr = (binary_expression_t*)_expr;
3000
3001     TRACE("\n");
3002
3003     return assign_oper_eval(ctx, expr->expression1, expr->expression2, add_eval, ei, ret);
3004 }
3005
3006 /* ECMA-262 3rd Edition    11.13.2 */
3007 HRESULT assign_sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3008 {
3009     binary_expression_t *expr = (binary_expression_t*)_expr;
3010
3011     TRACE("\n");
3012
3013     return assign_oper_eval(ctx, expr->expression1, expr->expression2, sub_eval, ei, ret);
3014 }
3015
3016 /* ECMA-262 3rd Edition    11.13.2 */
3017 HRESULT assign_mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3018 {
3019     binary_expression_t *expr = (binary_expression_t*)_expr;
3020
3021     TRACE("\n");
3022
3023     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mul_eval, ei, ret);
3024 }
3025
3026 /* ECMA-262 3rd Edition    11.13.2 */
3027 HRESULT assign_div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3028 {
3029     binary_expression_t *expr = (binary_expression_t*)_expr;
3030
3031     TRACE("\n");
3032
3033     return assign_oper_eval(ctx, expr->expression1, expr->expression2, div_eval, ei, ret);
3034 }
3035
3036 /* ECMA-262 3rd Edition    11.13.2 */
3037 HRESULT assign_mod_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3038 {
3039     binary_expression_t *expr = (binary_expression_t*)_expr;
3040
3041     TRACE("\n");
3042
3043     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mod_eval, ei, ret);
3044 }
3045
3046 /* ECMA-262 3rd Edition    11.13.2 */
3047 HRESULT assign_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3048 {
3049     binary_expression_t *expr = (binary_expression_t*)_expr;
3050
3051     TRACE("\n");
3052
3053     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitand_eval, ei, ret);
3054 }
3055
3056 /* ECMA-262 3rd Edition    11.13.2 */
3057 HRESULT assign_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3058 {
3059     binary_expression_t *expr = (binary_expression_t*)_expr;
3060
3061     TRACE("\n");
3062
3063     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitor_eval, ei, ret);
3064 }
3065
3066 /* ECMA-262 3rd Edition    11.13.2 */
3067 HRESULT assign_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3068 {
3069     binary_expression_t *expr = (binary_expression_t*)_expr;
3070
3071     TRACE("\n");
3072
3073     return assign_oper_eval(ctx, expr->expression1, expr->expression2, xor_eval, ei, ret);
3074 }