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     IDispatch_AddRef(this_obj);
 183     ctx->this_obj = this_obj;
 184
 185     IDispatchEx_AddRef(_IDispatchEx_(var_disp));
 186     ctx->var_disp = var_disp;
 187
 188     if(scope) {
 189         scope_addref(scope);
 190         ctx->scope_chain = scope;
 191     }
 192
 193     *ret = ctx;
 194     return S_OK;
 195 }
 196
 197 void exec_release(exec_ctx_t *ctx)
 198 {
 199     if(--ctx->ref)
 200         return;
 201
 202     if(ctx->scope_chain)
 203         scope_release(ctx->scope_chain);
 204     if(ctx->var_disp)
 205         IDispatchEx_Release(_IDispatchEx_(ctx->var_disp));
 206     if(ctx->this_obj)
 207         IDispatch_Release(ctx->this_obj);
 208     heap_free(ctx);
 209 }
 210
 211 static HRESULT disp_get_id(IDispatch *disp, BSTR name, DWORD flags, DISPID *id)
 212 {
 213     IDispatchEx *dispex;
 214     HRESULT hres;
 215
 216     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 217     if(FAILED(hres)) {
 218         TRACE("unsing IDispatch\n");
 219
 220         *id = 0;
 221         return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
 222     }
 223
 224     *id = 0;
 225     hres = IDispatchEx_GetDispID(dispex, name, flags|fdexNameCaseSensitive, id);
 226     IDispatchEx_Release(dispex);
 227     return hres;
 228 }
 229
 230 /* ECMA-262 3rd Edition    8.7.2 */
 231 static HRESULT put_value(script_ctx_t *ctx, exprval_t *ref, VARIANT *v, jsexcept_t *ei)
 232 {
 233     if(ref->type != EXPRVAL_IDREF) {
 234         FIXME("throw ReferemceError\n");
 235         return E_FAIL;
 236     }
 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         *ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
 308         break;
 309     case VT_DISPATCH:
 310         return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
 311     case VT_BOOL:
 312         *ret = !V_BOOL(lval) == !V_BOOL(rval);
 313         break;
 314     default:
 315         FIXME("unimplemented vt %d\n", V_VT(lval));
 316         return E_NOTIMPL;
 317     }
 318
 319     return S_OK;
 320 }
 321
 322 static HRESULT literal_to_var(literal_t *literal, VARIANT *v)
 323 {
 324     V_VT(v) = literal->vt;
 325
 326     switch(V_VT(v)) {
 327     case VT_EMPTY:
 328     case VT_NULL:
 329         break;
 330     case VT_I4:
 331         V_I4(v) = literal->u.lval;
 332         break;
 333     case VT_R8:
 334         V_R8(v) = literal->u.dval;
 335         break;
 336     case VT_BSTR:
 337         V_BSTR(v) = SysAllocString(literal->u.wstr);
 338         break;
 339     case VT_BOOL:
 340         V_BOOL(v) = literal->u.bval;
 341         break;
 342     case VT_DISPATCH:
 343         IDispatch_AddRef(literal->u.disp);
 344         V_DISPATCH(v) = literal->u.disp;
 345         break;
 346     default:
 347         ERR("wrong type %d\n", V_VT(v));
 348         return E_NOTIMPL;
 349     }
 350
 351     return S_OK;
 352 }
 353
 354 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, jsexcept_t *ei, VARIANT *retv)
 355 {
 356     script_ctx_t *script = parser->script;
 357     function_declaration_t *func;
 358     parser_ctx_t *prev_parser;
 359     var_list_t *var;
 360     VARIANT val, tmp;
 361     statement_t *stat;
 362     exec_ctx_t *prev_ctx;
 363     return_type_t rt;
 364     HRESULT hres = S_OK;
 365
 366     for(func = source->functions; func; func = func->next) {
 367         DispatchEx *func_obj;
 368         VARIANT var;
 369
 370         hres = create_source_function(parser, func->expr->parameter_list, func->expr->source_elements,
 371                 ctx->scope_chain, func->expr->src_str, func->expr->src_len, &func_obj);
 372         if(FAILED(hres))
 373             return hres;
 374
 375         V_VT(&var) = VT_DISPATCH;
 376         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(func_obj);
 377         hres = jsdisp_propput_name(ctx->var_disp, func->expr->identifier, script->lcid, &var, ei, NULL);
 378         jsdisp_release(func_obj);
 379         if(FAILED(hres))
 380             return hres;
 381     }
 382
 383     for(var = source->variables; var; var = var->next) {
 384         DISPID id = 0;
 385
 386         hres = jsdisp_get_id(ctx->var_disp, var->identifier, fdexNameEnsure, &id);
 387         if(FAILED(hres))
 388             return hres;
 389     }
 390
 391     prev_ctx = script->exec_ctx;
 392     script->exec_ctx = ctx;
 393
 394     prev_parser = ctx->parser;
 395     ctx->parser = parser;
 396
 397     V_VT(&val) = VT_EMPTY;
 398     memset(&rt, 0, sizeof(rt));
 399     rt.type = RT_NORMAL;
 400
 401     for(stat = source->statement; stat; stat = stat->next) {
 402         hres = stat_eval(ctx, stat, &rt, &tmp);
 403         if(FAILED(hres))
 404             break;
 405
 406         VariantClear(&val);
 407         val = tmp;
 408         if(rt.type != RT_NORMAL)
 409             break;
 410     }
 411
 412     script->exec_ctx = prev_ctx;
 413     ctx->parser = prev_parser;
 414
 415     if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
 416         FIXME("wrong rt %d\n", rt.type);
 417         hres = E_FAIL;
 418     }
 419
 420     *ei = rt.ei;
 421     if(FAILED(hres)) {
 422         VariantClear(&val);
 423         return hres;
 424     }
 425
 426     if(retv)
 427         *retv = val;
 428     else
 429         VariantClear(&val);
 430     return S_OK;
 431 }
 432
 433 /* ECMA-262 3rd Edition    10.1.4 */
 434 static HRESULT identifier_eval(exec_ctx_t *ctx, BSTR identifier, DWORD flags, exprval_t *ret)
 435 {
 436     scope_chain_t *scope;
 437     named_item_t *item;
 438     DISPID id = 0;
 439     HRESULT hres;
 440
 441     TRACE("%s\n", debugstr_w(identifier));
 442
 443     for(scope = ctx->scope_chain; scope; scope = scope->next) {
 444         hres = jsdisp_get_id(scope->obj, identifier, 0, &id);
 445         if(SUCCEEDED(hres))
 446             break;
 447     }
 448
 449     if(scope) {
 450         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(scope->obj), id);
 451         return S_OK;
 452     }
 453
 454     hres = jsdisp_get_id(ctx->parser->script->global, identifier, 0, &id);
 455     if(SUCCEEDED(hres)) {
 456         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->global), id);
 457         return S_OK;
 458     }
 459
 460     for(item = ctx->parser->script->named_items; item; item = item->next) {
 461         if((item->flags & SCRIPTITEM_ISVISIBLE) && !strcmpW(item->name, identifier)) {
 462             if(!item->disp) {
 463                 IUnknown *unk;
 464
 465                 if(!ctx->parser->script->site)
 466                     break;
 467
 468                 hres = IActiveScriptSite_GetItemInfo(ctx->parser->script->site, identifier,
 469                                                      SCRIPTINFO_IUNKNOWN, &unk, NULL);
 470                 if(FAILED(hres)) {
 471                     WARN("GetItemInfo failed: %08x\n", hres);
 472                     break;
 473                 }
 474
 475                 hres = IUnknown_QueryInterface(unk, &IID_IDispatch, (void**)&item->disp);
 476                 IUnknown_Release(unk);
 477                 if(FAILED(hres)) {
 478                     WARN("object does not implement IDispatch\n");
 479                     break;
 480                 }
 481             }
 482
 483             ret->type = EXPRVAL_VARIANT;
 484             V_VT(&ret->u.var) = VT_DISPATCH;
 485             V_DISPATCH(&ret->u.var) = item->disp;
 486             IDispatch_AddRef(item->disp);
 487             return S_OK;
 488         }
 489     }
 490
 491     for(item = ctx->parser->script->named_items; item; item = item->next) {
 492         hres = disp_get_id(item->disp, identifier, 0, &id);
 493         if(SUCCEEDED(hres))
 494             break;
 495     }
 496
 497     if(item) {
 498         exprval_set_idref(ret, (IDispatch*)item->disp, id);
 499         return S_OK;
 500     }
 501
 502     hres = jsdisp_get_id(ctx->parser->script->script_disp, identifier, 0, &id);
 503     if(SUCCEEDED(hres)) {
 504         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->script_disp), id);
 505         return S_OK;
 506     }
 507
 508     if(flags & EXPR_NEWREF) {
 509         hres = jsdisp_get_id(ctx->var_disp, identifier, fdexNameEnsure, &id);
 510         if(FAILED(hres))
 511             return hres;
 512
 513         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->var_disp), id);
 514         return S_OK;
 515     }
 516
 517     WARN("Could not find identifier %s\n", debugstr_w(identifier));
 518     return E_FAIL;
 519 }
 520
 521 /* ECMA-262 3rd Edition    12.1 */
 522 HRESULT block_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 523 {
 524     block_statement_t *stat = (block_statement_t*)_stat;
 525     VARIANT val, tmp;
 526     statement_t *iter;
 527     HRESULT hres = S_OK;
 528
 529     TRACE("\n");
 530
 531     V_VT(&val) = VT_EMPTY;
 532     for(iter = stat->stat_list; iter; iter = iter->next) {
 533         hres = stat_eval(ctx, iter, rt, &tmp);
 534         if(FAILED(hres))
 535             break;
 536
 537         VariantClear(&val);
 538         val = tmp;
 539         if(rt->type != RT_NORMAL)
 540             break;
 541     }
 542
 543     if(FAILED(hres)) {
 544         VariantClear(&val);
 545         return hres;
 546     }
 547
 548     *ret = val;
 549     return S_OK;
 550 }
 551
 552 /* ECMA-262 3rd Edition    12.2 */
 553 static HRESULT variable_list_eval(exec_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
 554 {
 555     variable_declaration_t *iter;
 556     HRESULT hres = S_OK;
 557
 558     for(iter = var_list; iter; iter = iter->next) {
 559         exprval_t exprval;
 560         VARIANT val;
 561
 562         if(!iter->expr)
 563             continue;
 564
 565         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
 566         if(FAILED(hres))
 567             break;
 568
 569         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
 570         exprval_release(&exprval);
 571         if(FAILED(hres))
 572             break;
 573
 574         hres = jsdisp_propput_name(ctx->var_disp, iter->identifier, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
 575         VariantClear(&val);
 576         if(FAILED(hres))
 577             break;
 578     }
 579
 580     return hres;
 581 }
 582
 583 /* ECMA-262 3rd Edition    12.2 */
 584 HRESULT var_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 585 {
 586     var_statement_t *stat = (var_statement_t*)_stat;
 587     HRESULT hres;
 588
 589     TRACE("\n");
 590
 591     hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 592     if(FAILED(hres))
 593         return hres;
 594
 595     V_VT(ret) = VT_EMPTY;
 596     return S_OK;
 597 }
 598
 599 /* ECMA-262 3rd Edition    12.3 */
 600 HRESULT empty_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 601 {
 602     TRACE("\n");
 603
 604     V_VT(ret) = VT_EMPTY;
 605     return S_OK;
 606 }
 607
 608 /* ECMA-262 3rd Edition    12.4 */
 609 HRESULT expression_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 610 {
 611     expression_statement_t *stat = (expression_statement_t*)_stat;
 612     exprval_t exprval;
 613     VARIANT val;
 614     HRESULT hres;
 615
 616     TRACE("\n");
 617
 618     hres = expr_eval(ctx, stat->expr, EXPR_NOVAL, &rt->ei, &exprval);
 619     if(FAILED(hres))
 620         return hres;
 621
 622     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 623     exprval_release(&exprval);
 624     if(FAILED(hres))
 625         return hres;
 626
 627     *ret = val;
 628     TRACE("= %s\n", debugstr_variant(ret));
 629     return S_OK;
 630 }
 631
 632 /* ECMA-262 3rd Edition    12.5 */
 633 HRESULT if_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 634 {
 635     if_statement_t *stat = (if_statement_t*)_stat;
 636     exprval_t exprval;
 637     VARIANT_BOOL b;
 638     HRESULT hres;
 639
 640     TRACE("\n");
 641
 642     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 643     if(FAILED(hres))
 644         return hres;
 645
 646     hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 647     exprval_release(&exprval);
 648     if(FAILED(hres))
 649         return hres;
 650
 651     if(b)
 652         hres = stat_eval(ctx, stat->if_stat, rt, ret);
 653     else if(stat->else_stat)
 654         hres = stat_eval(ctx, stat->else_stat, rt, ret);
 655     else
 656         V_VT(ret) = VT_EMPTY;
 657
 658     return hres;
 659 }
 660
 661 /* ECMA-262 3rd Edition    12.6.2 */
 662 HRESULT while_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 663 {
 664     while_statement_t *stat = (while_statement_t*)_stat;
 665     exprval_t exprval;
 666     VARIANT val, tmp;
 667     VARIANT_BOOL b;
 668     BOOL test_expr;
 669     HRESULT hres;
 670
 671     TRACE("\n");
 672
 673     V_VT(&val) = VT_EMPTY;
 674     test_expr = !stat->do_while;
 675
 676     while(1) {
 677         if(test_expr) {
 678             hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 679             if(FAILED(hres))
 680                 break;
 681
 682             hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 683             exprval_release(&exprval);
 684             if(FAILED(hres) || !b)
 685                 break;
 686         }else {
 687             test_expr = TRUE;
 688         }
 689
 690         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 691         if(FAILED(hres))
 692             break;
 693
 694         VariantClear(&val);
 695         val = tmp;
 696
 697         if(rt->type == RT_CONTINUE)
 698             rt->type = RT_NORMAL;
 699         if(rt->type != RT_NORMAL)
 700             break;
 701     }
 702
 703     if(FAILED(hres)) {
 704         VariantClear(&val);
 705         return hres;
 706     }
 707
 708     if(rt->type == RT_BREAK)
 709         rt->type = RT_NORMAL;
 710
 711     *ret = val;
 712     return S_OK;
 713 }
 714
 715 /* ECMA-262 3rd Edition    12.6.3 */
 716 HRESULT for_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 717 {
 718     for_statement_t *stat = (for_statement_t*)_stat;
 719     VARIANT val, tmp, retv;
 720     exprval_t exprval;
 721     VARIANT_BOOL b;
 722     HRESULT hres;
 723
 724     TRACE("\n");
 725
 726     if(stat->variable_list) {
 727         hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 728         if(FAILED(hres))
 729             return hres;
 730     }else if(stat->begin_expr) {
 731         hres = expr_eval(ctx, stat->begin_expr, EXPR_NEWREF, &rt->ei, &exprval);
 732         if(FAILED(hres))
 733             return hres;
 734
 735         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 736         exprval_release(&exprval);
 737         if(FAILED(hres))
 738             return hres;
 739
 740         VariantClear(&val);
 741     }
 742
 743     V_VT(&retv) = VT_EMPTY;
 744
 745     while(1) {
 746         if(stat->expr) {
 747             hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 748             if(FAILED(hres))
 749                 break;
 750
 751             hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 752             exprval_release(&exprval);
 753             if(FAILED(hres) || !b)
 754                 break;
 755         }
 756
 757         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 758         if(FAILED(hres))
 759             break;
 760
 761         VariantClear(&retv);
 762         retv = tmp;
 763
 764         if(rt->type == RT_CONTINUE)
 765             rt->type = RT_NORMAL;
 766         else if(rt->type != RT_NORMAL)
 767             break;
 768
 769         if(stat->end_expr) {
 770             hres = expr_eval(ctx, stat->end_expr, 0, &rt->ei, &exprval);
 771             if(FAILED(hres))
 772                 break;
 773
 774             hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 775             exprval_release(&exprval);
 776             if(FAILED(hres))
 777                 break;
 778
 779             VariantClear(&val);
 780         }
 781     }
 782
 783     if(FAILED(hres)) {
 784         VariantClear(&retv);
 785         return hres;
 786     }
 787
 788     if(rt->type == RT_BREAK)
 789         rt->type = RT_NORMAL;
 790
 791     *ret = retv;
 792     return S_OK;
 793 }
 794
 795 /* ECMA-262 3rd Edition    12.6.4 */
 796 HRESULT forin_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 797 {
 798     forin_statement_t *stat = (forin_statement_t*)_stat;
 799     VARIANT val, name, retv, tmp;
 800     DISPID id = DISPID_STARTENUM;
 801     BSTR str, identifier = NULL;
 802     IDispatchEx *in_obj;
 803     exprval_t exprval;
 804     HRESULT hres;
 805
 806     TRACE("\n");
 807
 808     if(stat->variable) {
 809         hres = variable_list_eval(ctx, stat->variable, &rt->ei);
 810         if(FAILED(hres))
 811             return hres;
 812     }
 813
 814     hres = expr_eval(ctx, stat->in_expr, EXPR_NEWREF, &rt->ei, &exprval);
 815     if(FAILED(hres))
 816         return hres;
 817
 818     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 819     exprval_release(&exprval);
 820     if(FAILED(hres))
 821         return hres;
 822
 823     if(V_VT(&val) != VT_DISPATCH) {
 824         TRACE("in vt %d\n", V_VT(&val));
 825         VariantClear(&val);
 826         V_VT(ret) = VT_EMPTY;
 827         return S_OK;
 828     }
 829
 830     hres = IDispatch_QueryInterface(V_DISPATCH(&val), &IID_IDispatchEx, (void**)&in_obj);
 831     IDispatch_Release(V_DISPATCH(&val));
 832     if(FAILED(hres)) {
 833         FIXME("Object doesn't support IDispatchEx\n");
 834         return E_NOTIMPL;
 835     }
 836
 837     V_VT(&retv) = VT_EMPTY;
 838
 839     if(stat->variable)
 840         identifier = SysAllocString(stat->variable->identifier);
 841
 842     while(1) {
 843         hres = IDispatchEx_GetNextDispID(in_obj, fdexEnumDefault, id, &id);
 844         if(FAILED(hres) || hres == S_FALSE)
 845             break;
 846
 847         hres = IDispatchEx_GetMemberName(in_obj, id, &str);
 848         if(FAILED(hres))
 849             break;
 850
 851         TRACE("iter %s\n", debugstr_w(str));
 852
 853         if(stat->variable)
 854             hres = identifier_eval(ctx, identifier, 0, &exprval);
 855         else
 856             hres = expr_eval(ctx, stat->expr, EXPR_NEWREF, &rt->ei, &exprval);
 857         if(SUCCEEDED(hres)) {
 858             V_VT(&name) = VT_BSTR;
 859             V_BSTR(&name) = str;
 860             hres = put_value(ctx->parser->script, &exprval, &name, &rt->ei);
 861             exprval_release(&exprval);
 862         }
 863         SysFreeString(str);
 864         if(FAILED(hres))
 865             break;
 866
 867         hres = stat_eval(ctx, stat->statement, rt, &tmp);
 868         if(FAILED(hres))
 869             break;
 870
 871         VariantClear(&retv);
 872         retv = tmp;
 873
 874         if(rt->type == RT_CONTINUE)
 875             rt->type = RT_NORMAL;
 876         else if(rt->type != RT_NORMAL)
 877             break;
 878     }
 879
 880     SysFreeString(identifier);
 881     IDispatchEx_Release(in_obj);
 882     if(FAILED(hres)) {
 883         VariantClear(&retv);
 884         return hres;
 885     }
 886
 887     if(rt->type == RT_BREAK)
 888         rt->type = RT_NORMAL;
 889
 890     *ret = retv;
 891     return S_OK;
 892 }
 893
 894 /* ECMA-262 3rd Edition    12.7 */
 895 HRESULT continue_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 896 {
 897     branch_statement_t *stat = (branch_statement_t*)_stat;
 898
 899     TRACE("\n");
 900
 901     if(stat->identifier) {
 902         FIXME("indentifier not implemented\n");
 903         return E_NOTIMPL;
 904     }
 905
 906     rt->type = RT_CONTINUE;
 907     V_VT(ret) = VT_EMPTY;
 908     return S_OK;
 909 }
 910
 911 /* ECMA-262 3rd Edition    12.8 */
 912 HRESULT break_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 913 {
 914     branch_statement_t *stat = (branch_statement_t*)_stat;
 915
 916     TRACE("\n");
 917
 918     if(stat->identifier) {
 919         FIXME("indentifier not implemented\n");
 920         return E_NOTIMPL;
 921     }
 922
 923     rt->type = RT_BREAK;
 924     V_VT(ret) = VT_EMPTY;
 925     return S_OK;
 926 }
 927
 928 /* ECMA-262 3rd Edition    12.9 */
 929 HRESULT return_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 930 {
 931     expression_statement_t *stat = (expression_statement_t*)_stat;
 932     HRESULT hres;
 933
 934     TRACE("\n");
 935
 936     if(stat->expr) {
 937         exprval_t exprval;
 938
 939         hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 940         if(FAILED(hres))
 941             return hres;
 942
 943         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, ret);
 944         exprval_release(&exprval);
 945         if(FAILED(hres))
 946             return hres;
 947     }else {
 948         V_VT(ret) = VT_EMPTY;
 949     }
 950
 951     TRACE("= %s\n", debugstr_variant(ret));
 952     rt->type = RT_RETURN;
 953     return S_OK;
 954 }
 955
 956 /* ECMA-262 3rd Edition    12.10 */
 957 HRESULT with_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 958 {
 959     with_statement_t *stat = (with_statement_t*)_stat;
 960     exprval_t exprval;
 961     IDispatch *disp;
 962     DispatchEx *obj;
 963     VARIANT val;
 964     HRESULT hres;
 965
 966     TRACE("\n");
 967
 968     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 969     if(FAILED(hres))
 970         return hres;
 971
 972     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 973     exprval_release(&exprval);
 974     if(FAILED(hres))
 975         return hres;
 976
 977     hres = to_object(ctx, &val, &disp);
 978     VariantClear(&val);
 979     if(FAILED(hres))
 980         return hres;
 981
 982     obj = iface_to_jsdisp((IUnknown*)disp);
 983     IDispatch_Release(disp);
 984     if(!obj) {
 985         FIXME("disp id not jsdisp\n");
 986         return E_NOTIMPL;
 987     }
 988
 989     hres = scope_push(ctx->scope_chain, obj, &ctx->scope_chain);
 990     jsdisp_release(obj);
 991     if(FAILED(hres))
 992         return hres;
 993
 994     hres = stat_eval(ctx, stat->statement, rt, ret);
 995
 996     scope_pop(&ctx->scope_chain);
 997     return hres;
 998 }
 999
1000 /* ECMA-262 3rd Edition    12.12 */
1001 HRESULT labelled_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
1002 {
1003     FIXME("\n");
1004     return E_NOTIMPL;
1005 }
1006
1007 /* ECMA-262 3rd Edition    12.13 */
1008 HRESULT switch_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1009 {
1010     switch_statement_t *stat = (switch_statement_t*)_stat;
1011     case_clausule_t *iter, *default_clausule = NULL;
1012     statement_t *stat_iter;
1013     VARIANT val, cval;
1014     exprval_t exprval;
1015     BOOL b;
1016     HRESULT hres;
1017
1018     TRACE("\n");
1019
1020     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1021     if(FAILED(hres))
1022         return hres;
1023
1024     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
1025     exprval_release(&exprval);
1026     if(FAILED(hres))
1027         return hres;
1028
1029     for(iter = stat->case_list; iter; iter = iter->next) {
1030         if(!iter->expr) {
1031             default_clausule = iter;
1032             continue;
1033         }
1034
1035         hres = expr_eval(ctx, iter->expr, 0, &rt->ei, &exprval);
1036         if(FAILED(hres))
1037             break;
1038
1039         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &cval);
1040         exprval_release(&exprval);
1041         if(FAILED(hres))
1042             break;
1043
1044         hres = equal2_values(&val, &cval, &b);
1045         VariantClear(&cval);
1046         if(FAILED(hres) || b)
1047             break;
1048     }
1049
1050     VariantClear(&val);
1051     if(FAILED(hres))
1052         return hres;
1053
1054     if(!iter)
1055         iter = default_clausule;
1056
1057     V_VT(&val) = VT_EMPTY;
1058     if(iter) {
1059         VARIANT tmp;
1060
1061         for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
1062             hres = stat_eval(ctx, stat_iter, rt, &tmp);
1063             if(FAILED(hres))
1064                 break;
1065
1066             VariantClear(&val);
1067             val = tmp;
1068
1069             if(rt->type != RT_NORMAL)
1070                 break;
1071         }
1072     }
1073
1074     if(FAILED(hres)) {
1075         VariantClear(&val);
1076         return hres;
1077     }
1078
1079     if(rt->type == RT_BREAK)
1080         rt->type = RT_NORMAL;
1081
1082     *ret = val;
1083     return S_OK;
1084 }
1085
1086 /* ECMA-262 3rd Edition    12.13 */
1087 HRESULT throw_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1088 {
1089     expression_statement_t *stat = (expression_statement_t*)_stat;
1090     exprval_t exprval;
1091     VARIANT val;
1092     HRESULT hres;
1093
1094     TRACE("\n");
1095
1096     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1097     if(FAILED(hres))
1098         return hres;
1099
1100     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
1101     exprval_release(&exprval);
1102     if(FAILED(hres))
1103         return hres;
1104
1105     rt->ei.var = val;
1106     return DISP_E_EXCEPTION;
1107 }
1108
1109 /* ECMA-262 3rd Edition    12.14 */
1110 static HRESULT catch_eval(exec_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
1111 {
1112     DispatchEx *var_disp;
1113     VARIANT ex, val;
1114     HRESULT hres;
1115
1116     ex = rt->ei.var;
1117     memset(&rt->ei, 0, sizeof(jsexcept_t));
1118
1119     hres = create_dispex(ctx->parser->script, NULL, NULL, &var_disp);
1120     if(SUCCEEDED(hres)) {
1121         hres = jsdisp_propput_name(var_disp, block->identifier, ctx->parser->script->lcid,
1122                 &ex, &rt->ei, NULL/*FIXME*/);
1123         if(SUCCEEDED(hres)) {
1124             hres = scope_push(ctx->scope_chain, var_disp, &ctx->scope_chain);
1125             if(SUCCEEDED(hres)) {
1126                 hres = stat_eval(ctx, block->statement, rt, &val);
1127                 scope_pop(&ctx->scope_chain);
1128             }
1129         }
1130
1131         jsdisp_release(var_disp);
1132     }
1133
1134     VariantClear(&ex);
1135     if(FAILED(hres))
1136         return hres;
1137
1138     *ret = val;
1139     return S_OK;
1140 }
1141
1142 /* ECMA-262 3rd Edition    12.14 */
1143 HRESULT try_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1144 {
1145     try_statement_t *stat = (try_statement_t*)_stat;
1146     VARIANT val;
1147     HRESULT hres;
1148
1149     TRACE("\n");
1150
1151     hres = stat_eval(ctx, stat->try_statement, rt, &val);
1152     if(FAILED(hres)) {
1153         TRACE("EXCEPTION\n");
1154         if(!stat->catch_block)
1155             return hres;
1156
1157         hres = catch_eval(ctx, stat->catch_block, rt, &val);
1158         if(FAILED(hres))
1159             return hres;
1160     }
1161
1162     if(stat->finally_statement) {
1163         VariantClear(&val);
1164         hres = stat_eval(ctx, stat->finally_statement, rt, &val);
1165         if(FAILED(hres))
1166             return hres;
1167     }
1168
1169     *ret = val;
1170     return S_OK;
1171 }
1172
1173 static HRESULT return_bool(exprval_t *ret, DWORD b)
1174 {
1175     ret->type = EXPRVAL_VARIANT;
1176     V_VT(&ret->u.var) = VT_BOOL;
1177     V_BOOL(&ret->u.var) = b ? VARIANT_TRUE : VARIANT_FALSE;
1178
1179     return S_OK;
1180 }
1181
1182 static HRESULT get_binary_expr_values(exec_ctx_t *ctx, binary_expression_t *expr, jsexcept_t *ei, VARIANT *lval, VARIANT *rval)
1183 {
1184     exprval_t exprval;
1185     HRESULT hres;
1186
1187     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1188     if(FAILED(hres))
1189         return hres;
1190
1191     hres = exprval_to_value(ctx->parser->script, &exprval, ei, lval);
1192     exprval_release(&exprval);
1193     if(FAILED(hres))
1194         return hres;
1195
1196     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1197     if(SUCCEEDED(hres)) {
1198         hres = exprval_to_value(ctx->parser->script, &exprval, ei, rval);
1199         exprval_release(&exprval);
1200     }
1201
1202     if(FAILED(hres)) {
1203         VariantClear(lval);
1204         return hres;
1205     }
1206
1207     return S_OK;
1208 }
1209
1210 typedef HRESULT (*oper_t)(exec_ctx_t*,VARIANT*,VARIANT*,jsexcept_t*,VARIANT*);
1211
1212 static HRESULT binary_expr_eval(exec_ctx_t *ctx, binary_expression_t *expr, oper_t oper, jsexcept_t *ei,
1213         exprval_t *ret)
1214 {
1215     VARIANT lval, rval, retv;
1216     HRESULT hres;
1217
1218     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1219     if(FAILED(hres))
1220         return hres;
1221
1222     hres = oper(ctx, &lval, &rval, ei, &retv);
1223     VariantClear(&lval);
1224     VariantClear(&rval);
1225     if(FAILED(hres))
1226         return hres;
1227
1228     ret->type = EXPRVAL_VARIANT;
1229     ret->u.var = retv;
1230     return S_OK;
1231 }
1232
1233 /* ECMA-262 3rd Edition    11.13.2 */
1234 static HRESULT assign_oper_eval(exec_ctx_t *ctx, expression_t *lexpr, expression_t *rexpr, oper_t oper,
1235                                 jsexcept_t *ei, exprval_t *ret)
1236 {
1237     VARIANT retv, lval, rval;
1238     exprval_t exprval, exprvalr;
1239     HRESULT hres;
1240
1241     hres = expr_eval(ctx, lexpr, EXPR_NEWREF, ei, &exprval);
1242     if(FAILED(hres))
1243         return hres;
1244
1245     hres = exprval_value(ctx->parser->script, &exprval, ei, &lval);
1246     if(SUCCEEDED(hres)) {
1247         hres = expr_eval(ctx, rexpr, 0, ei, &exprvalr);
1248         if(SUCCEEDED(hres)) {
1249             hres = exprval_value(ctx->parser->script, &exprvalr, ei, &rval);
1250             exprval_release(&exprvalr);
1251         }
1252         if(SUCCEEDED(hres)) {
1253             hres = oper(ctx, &lval, &rval, ei, &retv);
1254             VariantClear(&rval);
1255         }
1256         VariantClear(&lval);
1257     }
1258
1259     if(SUCCEEDED(hres)) {
1260         hres = put_value(ctx->parser->script, &exprval, &retv, ei);
1261         if(FAILED(hres))
1262             VariantClear(&retv);
1263     }
1264     exprval_release(&exprval);
1265
1266     if(FAILED(hres))
1267         return hres;
1268
1269     ret->type = EXPRVAL_VARIANT;
1270     ret->u.var = retv;
1271     return S_OK;
1272 }
1273
1274 /* ECMA-262 3rd Edition    13 */
1275 HRESULT function_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1276 {
1277     function_expression_t *expr = (function_expression_t*)_expr;
1278     VARIANT var;
1279     HRESULT hres;
1280
1281     TRACE("\n");
1282
1283     if(expr->identifier) {
1284         hres = jsdisp_propget_name(ctx->var_disp, expr->identifier, ctx->parser->script->lcid, &var, ei, NULL/*FIXME*/);
1285         if(FAILED(hres))
1286             return hres;
1287     }else {
1288         DispatchEx *dispex;
1289
1290         hres = create_source_function(ctx->parser, expr->parameter_list, expr->source_elements, ctx->scope_chain,
1291                 expr->src_str, expr->src_len, &dispex);
1292         if(FAILED(hres))
1293             return hres;
1294
1295         V_VT(&var) = VT_DISPATCH;
1296         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(dispex);
1297     }
1298
1299     ret->type = EXPRVAL_VARIANT;
1300     ret->u.var = var;
1301     return S_OK;
1302 }
1303
1304 /* ECMA-262 3rd Edition    11.12 */
1305 HRESULT conditional_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1306 {
1307     conditional_expression_t *expr = (conditional_expression_t*)_expr;
1308     exprval_t exprval;
1309     VARIANT_BOOL b;
1310     HRESULT hres;
1311
1312     TRACE("\n");
1313
1314     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1315     if(FAILED(hres))
1316         return hres;
1317
1318     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
1319     exprval_release(&exprval);
1320     if(FAILED(hres))
1321         return hres;
1322
1323     return expr_eval(ctx, b ? expr->true_expression : expr->false_expression, flags, ei, ret);
1324 }
1325
1326 /* ECMA-262 3rd Edition    11.2.1 */
1327 HRESULT array_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1328 {
1329     array_expression_t *expr = (array_expression_t*)_expr;
1330     exprval_t exprval;
1331     VARIANT member, val;
1332     DISPID id;
1333     BSTR str;
1334     IDispatch *obj = NULL;
1335     HRESULT hres;
1336
1337     TRACE("\n");
1338
1339     hres = expr_eval(ctx, expr->member_expr, EXPR_NEWREF, ei, &exprval);
1340     if(FAILED(hres))
1341         return hres;
1342
1343     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1344     exprval_release(&exprval);
1345     if(FAILED(hres))
1346         return hres;
1347
1348     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1349     if(SUCCEEDED(hres)) {
1350         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1351         exprval_release(&exprval);
1352     }
1353
1354     if(SUCCEEDED(hres))
1355         hres = to_object(ctx, &member, &obj);
1356     VariantClear(&member);
1357     if(SUCCEEDED(hres)) {
1358         hres = to_string(ctx->parser->script, &val, ei, &str);
1359         if(SUCCEEDED(hres)) {
1360             if(flags & EXPR_STRREF) {
1361                 ret->type = EXPRVAL_NAMEREF;
1362                 ret->u.nameref.disp = obj;
1363                 ret->u.nameref.name = str;
1364                 return S_OK;
1365             }
1366
1367             hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1368         }
1369
1370         if(SUCCEEDED(hres)) {
1371             exprval_set_idref(ret, obj, id);
1372         }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1373             exprval_init(ret);
1374             hres = S_OK;
1375         }
1376
1377         IDispatch_Release(obj);
1378     }
1379
1380     return hres;
1381 }
1382
1383 /* ECMA-262 3rd Edition    11.2.1 */
1384 HRESULT member_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1385 {
1386     member_expression_t *expr = (member_expression_t*)_expr;
1387     IDispatch *obj = NULL;
1388     exprval_t exprval;
1389     VARIANT member;
1390     DISPID id;
1391     BSTR str;
1392     HRESULT hres;
1393
1394     TRACE("\n");
1395
1396     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1397     if(FAILED(hres))
1398         return hres;
1399
1400     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1401     exprval_release(&exprval);
1402     if(FAILED(hres))
1403         return hres;
1404
1405     hres = to_object(ctx, &member, &obj);
1406     VariantClear(&member);
1407     if(FAILED(hres))
1408         return hres;
1409
1410     str = SysAllocString(expr->identifier);
1411     if(flags & EXPR_STRREF) {
1412         ret->type = EXPRVAL_NAMEREF;
1413         ret->u.nameref.disp = obj;
1414         ret->u.nameref.name = str;
1415         return S_OK;
1416     }
1417
1418     hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1419     SysFreeString(str);
1420     if(SUCCEEDED(hres)) {
1421         exprval_set_idref(ret, obj, id);
1422     }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1423         exprval_init(ret);
1424         hres = S_OK;
1425     }
1426
1427     IDispatch_Release(obj);
1428     return hres;
1429 }
1430
1431 static void free_dp(DISPPARAMS *dp)
1432 {
1433     DWORD i;
1434
1435     for(i=0; i < dp->cArgs; i++)
1436         VariantClear(dp->rgvarg+i);
1437     heap_free(dp->rgvarg);
1438 }
1439
1440 static HRESULT args_to_param(exec_ctx_t *ctx, argument_t *args, jsexcept_t *ei, DISPPARAMS *dp)
1441 {
1442     VARIANTARG *vargs;
1443     exprval_t exprval;
1444     argument_t *iter;
1445     DWORD cnt = 0, i;
1446     HRESULT hres = S_OK;
1447
1448     memset(dp, 0, sizeof(*dp));
1449     if(!args)
1450         return S_OK;
1451
1452     for(iter = args; iter; iter = iter->next)
1453         cnt++;
1454
1455     vargs = heap_alloc_zero(cnt * sizeof(*vargs));
1456     if(!vargs)
1457         return E_OUTOFMEMORY;
1458
1459     for(i = cnt, iter = args; iter; iter = iter->next) {
1460         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
1461         if(FAILED(hres))
1462             break;
1463
1464         hres = exprval_to_value(ctx->parser->script, &exprval, ei, vargs + (--i));
1465         exprval_release(&exprval);
1466         if(FAILED(hres))
1467             break;
1468     }
1469
1470     if(FAILED(hres)) {
1471         free_dp(dp);
1472         return hres;
1473     }
1474
1475     dp->rgvarg = vargs;
1476     dp->cArgs = cnt;
1477     return S_OK;
1478 }
1479
1480 /* ECMA-262 3rd Edition    11.2.2 */
1481 HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1482 {
1483     call_expression_t *expr = (call_expression_t*)_expr;
1484     exprval_t exprval;
1485     VARIANT constr, var;
1486     DISPPARAMS dp;
1487     HRESULT hres;
1488
1489     TRACE("\n");
1490
1491     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1492     if(FAILED(hres))
1493         return hres;
1494
1495     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1496     if(SUCCEEDED(hres))
1497         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &constr);
1498     exprval_release(&exprval);
1499     if(FAILED(hres))
1500         return hres;
1501
1502     if(V_VT(&constr) != VT_DISPATCH) {
1503         FIXME("throw TypeError\n");
1504         VariantClear(&constr);
1505         return E_FAIL;
1506     }
1507
1508     hres = disp_call(V_DISPATCH(&constr), DISPID_VALUE, ctx->parser->script->lcid,
1509                      DISPATCH_CONSTRUCT, &dp, &var, ei, NULL/*FIXME*/);
1510     IDispatch_Release(V_DISPATCH(&constr));
1511     if(FAILED(hres))
1512         return hres;
1513
1514     ret->type = EXPRVAL_VARIANT;
1515     ret->u.var = var;
1516     return S_OK;
1517 }
1518
1519 /* ECMA-262 3rd Edition    11.2.3 */
1520 HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1521 {
1522     call_expression_t *expr = (call_expression_t*)_expr;
1523     VARIANT var;
1524     exprval_t exprval;
1525     DISPPARAMS dp;
1526     HRESULT hres;
1527
1528     TRACE("\n");
1529
1530     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1531     if(FAILED(hres))
1532         return hres;
1533
1534     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1535     if(SUCCEEDED(hres)) {
1536         switch(exprval.type) {
1537         case EXPRVAL_IDREF:
1538             hres = disp_call(exprval.u.idref.disp, exprval.u.idref.id, ctx->parser->script->lcid, DISPATCH_METHOD,
1539                     &dp, flags & EXPR_NOVAL ? NULL : &var, ei, NULL/*FIXME*/);
1540             if(flags & EXPR_NOVAL)
1541                 V_VT(&var) = VT_EMPTY;
1542             break;
1543         default:
1544             FIXME("unimplemented type %d\n", exprval.type);
1545             hres = E_NOTIMPL;
1546         }
1547
1548         free_dp(&dp);
1549     }
1550
1551     exprval_release(&exprval);
1552     if(FAILED(hres))
1553         return hres;
1554
1555     TRACE("= %s\n", debugstr_variant(&var));
1556     ret->type = EXPRVAL_VARIANT;
1557     ret->u.var = var;
1558     return S_OK;
1559 }
1560
1561 /* ECMA-262 3rd Edition    11.1.1 */
1562 HRESULT this_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1563 {
1564     TRACE("\n");
1565
1566     ret->type = EXPRVAL_VARIANT;
1567     V_VT(&ret->u.var) = VT_DISPATCH;
1568     V_DISPATCH(&ret->u.var) = ctx->this_obj;
1569     IDispatch_AddRef(ctx->this_obj);
1570     return S_OK;
1571 }
1572
1573 /* ECMA-262 3rd Edition    10.1.4 */
1574 HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1575 {
1576     identifier_expression_t *expr = (identifier_expression_t*)_expr;
1577     BSTR identifier;
1578     HRESULT hres;
1579
1580     TRACE("\n");
1581
1582     identifier = SysAllocString(expr->identifier);
1583     if(!identifier)
1584         return E_OUTOFMEMORY;
1585
1586     hres = identifier_eval(ctx, identifier, flags, ret);
1587
1588     SysFreeString(identifier);
1589     return hres;
1590 }
1591
1592 /* ECMA-262 3rd Edition    7.8 */
1593 HRESULT literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1594 {
1595     literal_expression_t *expr = (literal_expression_t*)_expr;
1596     VARIANT var;
1597     HRESULT hres;
1598
1599     TRACE("\n");
1600
1601     hres = literal_to_var(expr->literal, &var);
1602     if(FAILED(hres))
1603         return hres;
1604
1605     ret->type = EXPRVAL_VARIANT;
1606     ret->u.var = var;
1607     return S_OK;
1608 }
1609
1610 /* ECMA-262 3rd Edition    11.1.4 */
1611 HRESULT array_literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1612 {
1613     array_literal_expression_t *expr = (array_literal_expression_t*)_expr;
1614     DWORD length = 0, i = 0;
1615     array_element_t *elem;
1616     DispatchEx *array;
1617     exprval_t exprval;
1618     VARIANT val;
1619     HRESULT hres;
1620
1621     TRACE("\n");
1622
1623     for(elem = expr->element_list; elem; elem = elem->next)
1624         length += elem->elision+1;
1625     length += expr->length;
1626
1627     hres = create_array(ctx->parser->script, length, &array);
1628     if(FAILED(hres))
1629         return hres;
1630
1631     for(elem = expr->element_list; elem; elem = elem->next) {
1632         i += elem->elision;
1633
1634         hres = expr_eval(ctx, elem->expr, 0, ei, &exprval);
1635         if(FAILED(hres))
1636             break;
1637
1638         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1639         exprval_release(&exprval);
1640         if(FAILED(hres))
1641             break;
1642
1643         hres = jsdisp_propput_idx(array, i, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1644         VariantClear(&val);
1645         if(FAILED(hres))
1646             break;
1647
1648         i++;
1649     }
1650
1651     if(FAILED(hres)) {
1652         jsdisp_release(array);
1653         return hres;
1654     }
1655
1656     ret->type = EXPRVAL_VARIANT;
1657     V_VT(&ret->u.var) = VT_DISPATCH;
1658     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(array);
1659     return S_OK;
1660 }
1661
1662 /* ECMA-262 3rd Edition    11.1.5 */
1663 HRESULT property_value_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1664 {
1665     property_value_expression_t *expr = (property_value_expression_t*)_expr;
1666     VARIANT val, tmp;
1667     DispatchEx *obj;
1668     prop_val_t *iter;
1669     exprval_t exprval;
1670     BSTR name;
1671     HRESULT hres;
1672
1673     TRACE("\n");
1674
1675     hres = create_object(ctx->parser->script, NULL, &obj);
1676     if(FAILED(hres))
1677         return hres;
1678
1679     for(iter = expr->property_list; iter; iter = iter->next) {
1680         hres = literal_to_var(iter->name, &tmp);
1681         if(FAILED(hres))
1682             break;
1683
1684         hres = to_string(ctx->parser->script, &tmp, ei, &name);
1685         VariantClear(&tmp);
1686         if(FAILED(hres))
1687             break;
1688
1689         hres = expr_eval(ctx, iter->value, 0, ei, &exprval);
1690         if(SUCCEEDED(hres)) {
1691             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1692             exprval_release(&exprval);
1693             if(SUCCEEDED(hres)) {
1694                 hres = jsdisp_propput_name(obj, name, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1695                 VariantClear(&val);
1696             }
1697         }
1698
1699         SysFreeString(name);
1700         if(FAILED(hres))
1701             break;
1702     }
1703
1704     if(FAILED(hres)) {
1705         jsdisp_release(obj);
1706         return hres;
1707     }
1708
1709     ret->type = EXPRVAL_VARIANT;
1710     V_VT(&ret->u.var) = VT_DISPATCH;
1711     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(obj);
1712     return S_OK;
1713 }
1714
1715 /* ECMA-262 3rd Edition    11.14 */
1716 HRESULT comma_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1717 {
1718     binary_expression_t *expr = (binary_expression_t*)_expr;
1719     VARIANT lval, rval;
1720     HRESULT hres;
1721
1722     TRACE("\n");
1723
1724     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1725     if(FAILED(hres))
1726         return hres;
1727
1728     VariantClear(&lval);
1729
1730     ret->type = EXPRVAL_VARIANT;
1731     ret->u.var = rval;
1732     return S_OK;
1733 }
1734
1735 /* ECMA-262 3rd Edition    11.11 */
1736 HRESULT logical_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1737 {
1738     binary_expression_t *expr = (binary_expression_t*)_expr;
1739     exprval_t exprval;
1740     VARIANT_BOOL b;
1741     VARIANT val;
1742     HRESULT hres;
1743
1744     TRACE("\n");
1745
1746     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1747     if(FAILED(hres))
1748         return hres;
1749
1750     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1751     exprval_release(&exprval);
1752     if(FAILED(hres))
1753         return hres;
1754
1755     hres = to_boolean(&val, &b);
1756     if(SUCCEEDED(hres) && b) {
1757         ret->type = EXPRVAL_VARIANT;
1758         ret->u.var = val;
1759         return S_OK;
1760     }
1761
1762     VariantClear(&val);
1763     if(FAILED(hres))
1764         return hres;
1765
1766     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1767     if(FAILED(hres))
1768         return hres;
1769
1770     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1771     exprval_release(&exprval);
1772     if(FAILED(hres))
1773         return hres;
1774
1775     ret->type = EXPRVAL_VARIANT;
1776     ret->u.var = val;
1777     return S_OK;
1778 }
1779
1780 /* ECMA-262 3rd Edition    11.11 */
1781 HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1782 {
1783     binary_expression_t *expr = (binary_expression_t*)_expr;
1784     exprval_t exprval;
1785     VARIANT_BOOL b;
1786     VARIANT val;
1787     HRESULT hres;
1788
1789     TRACE("\n");
1790
1791     hres = expr_eval(ctx, expr->expression1, 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     hres = to_boolean(&val, &b);
1801     if(SUCCEEDED(hres) && !b) {
1802         ret->type = EXPRVAL_VARIANT;
1803         ret->u.var = val;
1804         return S_OK;
1805     }
1806
1807     VariantClear(&val);
1808     if(FAILED(hres))
1809         return hres;
1810
1811     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1812     if(FAILED(hres))
1813         return hres;
1814
1815     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1816     exprval_release(&exprval);
1817     if(FAILED(hres))
1818         return hres;
1819
1820     ret->type = EXPRVAL_VARIANT;
1821     ret->u.var = val;
1822     return S_OK;
1823 }
1824
1825 /* ECMA-262 3rd Edition    11.10 */
1826 static HRESULT bitor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1827 {
1828     INT li, ri;
1829     HRESULT hres;
1830
1831     hres = to_int32(ctx->parser->script, lval, ei, &li);
1832     if(FAILED(hres))
1833         return hres;
1834
1835     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1836     if(FAILED(hres))
1837         return hres;
1838
1839     V_VT(retv) = VT_I4;
1840     V_I4(retv) = li|ri;
1841     return S_OK;
1842 }
1843
1844 /* ECMA-262 3rd Edition    11.10 */
1845 HRESULT binary_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1846 {
1847     binary_expression_t *expr = (binary_expression_t*)_expr;
1848
1849     TRACE("\n");
1850
1851     return binary_expr_eval(ctx, expr, bitor_eval, ei, ret);
1852 }
1853
1854 /* ECMA-262 3rd Edition    11.10 */
1855 static HRESULT xor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1856 {
1857     INT li, ri;
1858     HRESULT hres;
1859
1860     hres = to_int32(ctx->parser->script, lval, ei, &li);
1861     if(FAILED(hres))
1862         return hres;
1863
1864     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1865     if(FAILED(hres))
1866         return hres;
1867
1868     V_VT(retv) = VT_I4;
1869     V_I4(retv) = li^ri;
1870     return S_OK;
1871 }
1872
1873 /* ECMA-262 3rd Edition    11.10 */
1874 HRESULT binary_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1875 {
1876     binary_expression_t *expr = (binary_expression_t*)_expr;
1877
1878     TRACE("\n");
1879
1880     return binary_expr_eval(ctx, expr, xor_eval, ei, ret);
1881 }
1882
1883 /* ECMA-262 3rd Edition    11.10 */
1884 static HRESULT bitand_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1885 {
1886     INT li, ri;
1887     HRESULT hres;
1888
1889     hres = to_int32(ctx->parser->script, lval, ei, &li);
1890     if(FAILED(hres))
1891         return hres;
1892
1893     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1894     if(FAILED(hres))
1895         return hres;
1896
1897     V_VT(retv) = VT_I4;
1898     V_I4(retv) = li&ri;
1899     return S_OK;
1900 }
1901
1902 /* ECMA-262 3rd Edition    11.10 */
1903 HRESULT binary_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1904 {
1905     binary_expression_t *expr = (binary_expression_t*)_expr;
1906
1907     TRACE("\n");
1908
1909     return binary_expr_eval(ctx, expr, bitand_eval, ei, ret);
1910 }
1911
1912 /* ECMA-262 3rd Edition    11.8.6 */
1913 HRESULT instanceof_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1914 {
1915     FIXME("\n");
1916     return E_NOTIMPL;
1917 }
1918
1919 /* ECMA-262 3rd Edition    11.8.7 */
1920 HRESULT in_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1921 {
1922     FIXME("\n");
1923     return E_NOTIMPL;
1924 }
1925
1926 /* ECMA-262 3rd Edition    11.6.1 */
1927 static HRESULT add_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1928 {
1929     VARIANT r, l;
1930     HRESULT hres;
1931
1932     hres = to_primitive(ctx->parser->script, lval, ei, &l);
1933     if(FAILED(hres))
1934         return hres;
1935
1936     hres = to_primitive(ctx->parser->script, rval, ei, &r);
1937     if(FAILED(hres)) {
1938         VariantClear(&l);
1939         return hres;
1940     }
1941
1942     if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
1943         BSTR lstr = NULL, rstr = NULL;
1944
1945         if(V_VT(&l) == VT_BSTR)
1946             lstr = V_BSTR(&l);
1947         else
1948             hres = to_string(ctx->parser->script, &l, ei, &lstr);
1949
1950         if(SUCCEEDED(hres)) {
1951             if(V_VT(&r) == VT_BSTR)
1952                 rstr = V_BSTR(&r);
1953             else
1954                 hres = to_string(ctx->parser->script, &r, ei, &rstr);
1955         }
1956
1957         if(SUCCEEDED(hres)) {
1958             int len1, len2;
1959
1960             len1 = SysStringLen(lstr);
1961             len2 = SysStringLen(rstr);
1962
1963             V_VT(retv) = VT_BSTR;
1964             V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
1965             memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
1966             memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
1967         }
1968
1969         if(V_VT(&l) != VT_BSTR)
1970             SysFreeString(lstr);
1971         if(V_VT(&r) != VT_BSTR)
1972             SysFreeString(rstr);
1973     }else {
1974         VARIANT nl, nr;
1975
1976         hres = to_number(ctx->parser->script, &l, ei, &nl);
1977         if(SUCCEEDED(hres)) {
1978             hres = to_number(ctx->parser->script, &r, ei, &nr);
1979             if(SUCCEEDED(hres))
1980                 num_set_val(retv, num_val(&nl) + num_val(&nr));
1981         }
1982     }
1983
1984     VariantClear(&r);
1985     VariantClear(&l);
1986     return hres;
1987 }
1988
1989 /* ECMA-262 3rd Edition    11.6.1 */
1990 HRESULT add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1991 {
1992     binary_expression_t *expr = (binary_expression_t*)_expr;
1993
1994     TRACE("\n");
1995
1996     return binary_expr_eval(ctx, expr, add_eval, ei, ret);
1997 }
1998
1999 /* ECMA-262 3rd Edition    11.6.2 */
2000 static HRESULT sub_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2001 {
2002     VARIANT lnum, rnum;
2003     HRESULT hres;
2004
2005     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2006     if(FAILED(hres))
2007         return hres;
2008
2009     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2010     if(FAILED(hres))
2011         return hres;
2012
2013     num_set_val(retv, num_val(&lnum) - num_val(&rnum));
2014     return S_OK;
2015 }
2016
2017 /* ECMA-262 3rd Edition    11.6.2 */
2018 HRESULT sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2019 {
2020     binary_expression_t *expr = (binary_expression_t*)_expr;
2021
2022     TRACE("\n");
2023
2024     return binary_expr_eval(ctx, expr, sub_eval, ei, ret);
2025 }
2026
2027 /* ECMA-262 3rd Edition    11.5.1 */
2028 static HRESULT mul_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2029 {
2030     VARIANT lnum, rnum;
2031     HRESULT hres;
2032
2033     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2034     if(FAILED(hres))
2035         return hres;
2036
2037     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2038     if(FAILED(hres))
2039         return hres;
2040
2041     num_set_val(retv, num_val(&lnum) * num_val(&rnum));
2042     return S_OK;
2043 }
2044
2045 /* ECMA-262 3rd Edition    11.5.1 */
2046 HRESULT mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2047 {
2048     binary_expression_t *expr = (binary_expression_t*)_expr;
2049
2050     TRACE("\n");
2051
2052     return binary_expr_eval(ctx, expr, mul_eval, ei, ret);
2053 }
2054
2055 /* ECMA-262 3rd Edition    11.5.2 */
2056 static HRESULT div_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2057 {
2058     VARIANT lnum, rnum;
2059     HRESULT hres;
2060
2061     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2062     if(FAILED(hres))
2063         return hres;
2064
2065     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2066     if(FAILED(hres))
2067         return hres;
2068
2069     num_set_val(retv, num_val(&lnum) / num_val(&rnum));
2070     return S_OK;
2071 }
2072
2073 /* ECMA-262 3rd Edition    11.5.2 */
2074 HRESULT div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2075 {
2076     binary_expression_t *expr = (binary_expression_t*)_expr;
2077
2078     TRACE("\n");
2079
2080     return binary_expr_eval(ctx, expr, div_eval, ei, ret);
2081 }
2082
2083 /* ECMA-262 3rd Edition    11.5.3 */
2084 static HRESULT mod_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2085 {
2086     VARIANT lnum, rnum;
2087     HRESULT hres;
2088
2089     hres = to_number(ctx->parser->script, lval, ei, &lnum);
2090     if(FAILED(hres))
2091         return hres;
2092
2093     hres = to_number(ctx->parser->script, rval, ei, &rnum);
2094     if(FAILED(hres))
2095         return hres;
2096
2097     num_set_val(retv, fmod(num_val(&lnum), num_val(&rnum)));
2098     return S_OK;
2099 }
2100
2101 /* ECMA-262 3rd Edition    11.5.3 */
2102 HRESULT mod_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2103 {
2104     binary_expression_t *expr = (binary_expression_t*)_expr;
2105
2106     TRACE("\n");
2107
2108     return binary_expr_eval(ctx, expr, mod_eval, ei, ret);
2109 }
2110
2111 /* ECMA-262 3rd Edition    11.4.2 */
2112 HRESULT delete_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2113 {
2114     unary_expression_t *expr = (unary_expression_t*)_expr;
2115     VARIANT_BOOL b = VARIANT_FALSE;
2116     exprval_t exprval;
2117     HRESULT hres;
2118
2119     TRACE("\n");
2120
2121     hres = expr_eval(ctx, expr->expression, EXPR_STRREF, ei, &exprval);
2122     if(FAILED(hres))
2123         return hres;
2124
2125     switch(exprval.type) {
2126     case EXPRVAL_IDREF: {
2127         IDispatchEx *dispex;
2128
2129         hres = IDispatch_QueryInterface(exprval.u.nameref.disp, &IID_IDispatchEx, (void**)&dispex);
2130         if(SUCCEEDED(hres)) {
2131             hres = IDispatchEx_DeleteMemberByDispID(dispex, exprval.u.idref.id);
2132             b = VARIANT_TRUE;
2133             IDispatchEx_Release(dispex);
2134         }
2135         break;
2136     }
2137     case EXPRVAL_NAMEREF: {
2138         IDispatchEx *dispex;
2139
2140         hres = IDispatch_QueryInterface(exprval.u.nameref.disp, &IID_IDispatchEx, (void**)&dispex);
2141         if(SUCCEEDED(hres)) {
2142             hres = IDispatchEx_DeleteMemberByName(dispex, exprval.u.nameref.name, fdexNameCaseSensitive);
2143             b = VARIANT_TRUE;
2144             IDispatchEx_Release(dispex);
2145         }
2146         break;
2147     }
2148     default:
2149         FIXME("unsupported type %d\n", exprval.type);
2150         hres = E_NOTIMPL;
2151     }
2152
2153     exprval_release(&exprval);
2154     if(FAILED(hres))
2155         return hres;
2156
2157     return return_bool(ret, b);
2158 }
2159
2160 /* ECMA-262 3rd Edition    11.4.2 */
2161 HRESULT void_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2162 {
2163     unary_expression_t *expr = (unary_expression_t*)_expr;
2164     exprval_t exprval;
2165     VARIANT tmp;
2166     HRESULT hres;
2167
2168     TRACE("\n");
2169
2170     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2171     if(FAILED(hres))
2172         return hres;
2173
2174     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &tmp);
2175     exprval_release(&exprval);
2176     if(FAILED(hres))
2177         return hres;
2178
2179     VariantClear(&tmp);
2180
2181     ret->type = EXPRVAL_VARIANT;
2182     V_VT(&ret->u.var) = VT_EMPTY;
2183     return S_OK;
2184 }
2185
2186 /* ECMA-262 3rd Edition    11.4.3 */
2187 HRESULT typeof_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2188 {
2189     unary_expression_t *expr = (unary_expression_t*)_expr;
2190     const WCHAR *str;
2191     exprval_t exprval;
2192     VARIANT val;
2193     HRESULT hres;
2194
2195     static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
2196     static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
2197     static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
2198     static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
2199     static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
2200     static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
2201
2202     TRACE("\n");
2203
2204     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2205     if(FAILED(hres))
2206         return hres;
2207
2208     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2209     exprval_release(&exprval);
2210     if(FAILED(hres))
2211         return hres;
2212
2213     switch(V_VT(&val)) {
2214     case VT_EMPTY:
2215         str = undefinedW;
2216         break;
2217     case VT_NULL:
2218         str = objectW;
2219         break;
2220     case VT_BOOL:
2221         str = booleanW;
2222         break;
2223     case VT_I4:
2224     case VT_R8:
2225         str = numberW;
2226         break;
2227     case VT_BSTR:
2228         str = stringW;
2229         break;
2230     case VT_DISPATCH: {
2231         DispatchEx *dispex;
2232
2233         dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(&val));
2234         if(dispex) {
2235             str = dispex->builtin_info->class == JSCLASS_FUNCTION ? functionW : objectW;
2236             IDispatchEx_Release(_IDispatchEx_(dispex));
2237         }else {
2238             str = objectW;
2239         }
2240         break;
2241     }
2242     default:
2243         FIXME("unhandled vt %d\n", V_VT(&val));
2244         VariantClear(&val);
2245         return E_NOTIMPL;
2246     }
2247
2248     VariantClear(&val);
2249
2250     ret->type = EXPRVAL_VARIANT;
2251     V_VT(&ret->u.var) = VT_BSTR;
2252     V_BSTR(&ret->u.var) = SysAllocString(str);
2253     return S_OK;
2254 }
2255
2256 /* ECMA-262 3rd Edition    11.4.7 */
2257 HRESULT minus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2258 {
2259     unary_expression_t *expr = (unary_expression_t*)_expr;
2260     exprval_t exprval;
2261     VARIANT val, num;
2262     HRESULT hres;
2263
2264     TRACE("\n");
2265
2266     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2267     if(FAILED(hres))
2268         return hres;
2269
2270     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2271     exprval_release(&exprval);
2272     if(FAILED(hres))
2273         return hres;
2274
2275     hres = to_number(ctx->parser->script, &val, ei, &num);
2276     VariantClear(&val);
2277     if(FAILED(hres))
2278         return hres;
2279
2280     ret->type = EXPRVAL_VARIANT;
2281     num_set_val(&ret->u.var, -num_val(&num));
2282     return S_OK;
2283 }
2284
2285 /* ECMA-262 3rd Edition    11.4.6 */
2286 HRESULT plus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2287 {
2288     unary_expression_t *expr = (unary_expression_t*)_expr;
2289     exprval_t exprval;
2290     VARIANT val, num;
2291     HRESULT hres;
2292
2293     TRACE("\n");
2294
2295     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2296     if(FAILED(hres))
2297         return hres;
2298
2299     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2300     exprval_release(&exprval);
2301     if(FAILED(hres))
2302         return hres;
2303
2304     hres = to_number(ctx->parser->script, &val, ei, &num);
2305     if(FAILED(hres))
2306         return hres;
2307
2308     ret->type = EXPRVAL_VARIANT;
2309     ret->u.var = num;
2310     return S_OK;
2311 }
2312
2313 /* ECMA-262 3rd Edition    11.3.1 */
2314 HRESULT post_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2315 {
2316     unary_expression_t *expr = (unary_expression_t*)_expr;
2317     VARIANT val, num;
2318     exprval_t exprval;
2319     HRESULT hres;
2320
2321     TRACE("\n");
2322
2323     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2324     if(FAILED(hres))
2325         return hres;
2326
2327     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2328     if(SUCCEEDED(hres)) {
2329         hres = to_number(ctx->parser->script, &val, ei, &num);
2330         VariantClear(&val);
2331     }
2332
2333     if(SUCCEEDED(hres)) {
2334         VARIANT inc;
2335         num_set_val(&inc, num_val(&num)+1.0);
2336         hres = put_value(ctx->parser->script, &exprval, &inc, ei);
2337     }
2338
2339     exprval_release(&exprval);
2340     if(FAILED(hres))
2341         return hres;
2342
2343     ret->type = EXPRVAL_VARIANT;
2344     ret->u.var = num;
2345     return S_OK;
2346 }
2347
2348 /* ECMA-262 3rd Edition    11.3.2 */
2349 HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2350 {
2351     unary_expression_t *expr = (unary_expression_t*)_expr;
2352     VARIANT val, num;
2353     exprval_t exprval;
2354     HRESULT hres;
2355
2356     TRACE("\n");
2357
2358     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2359     if(FAILED(hres))
2360         return hres;
2361
2362     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2363     if(SUCCEEDED(hres)) {
2364         hres = to_number(ctx->parser->script, &val, ei, &num);
2365         VariantClear(&val);
2366     }
2367
2368     if(SUCCEEDED(hres)) {
2369         VARIANT dec;
2370         num_set_val(&dec, num_val(&num)-1.0);
2371         hres = put_value(ctx->parser->script, &exprval, &dec, ei);
2372     }
2373
2374     exprval_release(&exprval);
2375     if(FAILED(hres))
2376         return hres;
2377
2378     ret->type = EXPRVAL_VARIANT;
2379     ret->u.var = num;
2380     return S_OK;
2381 }
2382
2383 /* ECMA-262 3rd Edition    11.4.4 */
2384 HRESULT pre_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2385 {
2386     unary_expression_t *expr = (unary_expression_t*)_expr;
2387     VARIANT val, num;
2388     exprval_t exprval;
2389     HRESULT hres;
2390
2391     TRACE("\n");
2392
2393     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2394     if(FAILED(hres))
2395         return hres;
2396
2397     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2398     if(SUCCEEDED(hres)) {
2399         hres = to_number(ctx->parser->script, &val, ei, &num);
2400         VariantClear(&val);
2401     }
2402
2403     if(SUCCEEDED(hres)) {
2404         num_set_val(&val, num_val(&num)+1.0);
2405         hres = put_value(ctx->parser->script, &exprval, &val, ei);
2406     }
2407
2408     exprval_release(&exprval);
2409     if(FAILED(hres))
2410         return hres;
2411
2412     ret->type = EXPRVAL_VARIANT;
2413     ret->u.var = val;
2414     return S_OK;
2415 }
2416
2417 /* ECMA-262 3rd Edition    11.4.5 */
2418 HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2419 {
2420     unary_expression_t *expr = (unary_expression_t*)_expr;
2421     VARIANT val, num;
2422     exprval_t exprval;
2423     HRESULT hres;
2424
2425     TRACE("\n");
2426
2427     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2428     if(FAILED(hres))
2429         return hres;
2430
2431     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
2432     if(SUCCEEDED(hres)) {
2433         hres = to_number(ctx->parser->script, &val, ei, &num);
2434         VariantClear(&val);
2435     }
2436
2437     if(SUCCEEDED(hres)) {
2438         num_set_val(&val, num_val(&num)-1.0);
2439         hres = put_value(ctx->parser->script, &exprval, &val, ei);
2440     }
2441
2442     exprval_release(&exprval);
2443     if(FAILED(hres))
2444         return hres;
2445
2446     ret->type = EXPRVAL_VARIANT;
2447     ret->u.var = val;
2448     return S_OK;
2449 }
2450
2451 /* ECMA-262 3rd Edition    11.9.3 */
2452 static HRESULT equal_values(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2453 {
2454     if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
2455        return equal2_values(lval, rval, ret);
2456
2457     /* FIXME: NULL disps should be handled in more general way */
2458     if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
2459         VARIANT v;
2460         V_VT(&v) = VT_NULL;
2461         return equal_values(ctx, &v, rval, ei, ret);
2462     }
2463
2464     if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
2465         VARIANT v;
2466         V_VT(&v) = VT_NULL;
2467         return equal_values(ctx, lval, &v, ei, ret);
2468     }
2469
2470     if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
2471        (V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
2472         *ret = TRUE;
2473         return S_OK;
2474     }
2475
2476     if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
2477         VARIANT v;
2478         HRESULT hres;
2479
2480         hres = to_number(ctx->parser->script, lval, ei, &v);
2481         if(FAILED(hres))
2482             return hres;
2483
2484         return equal_values(ctx, &v, rval, ei, ret);
2485     }
2486
2487     if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
2488         VARIANT v;
2489         HRESULT hres;
2490
2491         hres = to_number(ctx->parser->script, rval, ei, &v);
2492         if(FAILED(hres))
2493             return hres;
2494
2495         return equal_values(ctx, lval, &v, ei, ret);
2496     }
2497
2498     if(V_VT(rval) == VT_BOOL) {
2499         VARIANT v;
2500
2501         V_VT(&v) = VT_I4;
2502         V_I4(&v) = V_BOOL(rval) ? 1 : 0;
2503         return equal_values(ctx, lval, &v, ei, ret);
2504     }
2505
2506     if(V_VT(lval) == VT_BOOL) {
2507         VARIANT v;
2508
2509         V_VT(&v) = VT_I4;
2510         V_I4(&v) = V_BOOL(lval) ? 1 : 0;
2511         return equal_values(ctx, &v, rval, ei, ret);
2512     }
2513
2514
2515     if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
2516         VARIANT v;
2517         HRESULT hres;
2518
2519         hres = to_primitive(ctx->parser->script, rval, ei, &v);
2520         if(FAILED(hres))
2521             return hres;
2522
2523         hres = equal_values(ctx, lval, &v, ei, ret);
2524
2525         VariantClear(&v);
2526         return hres;
2527     }
2528
2529
2530     if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
2531         VARIANT v;
2532         HRESULT hres;
2533
2534         hres = to_primitive(ctx->parser->script, lval, ei, &v);
2535         if(FAILED(hres))
2536             return hres;
2537
2538         hres = equal_values(ctx, &v, rval, ei, ret);
2539
2540         VariantClear(&v);
2541         return hres;
2542     }
2543
2544
2545     *ret = FALSE;
2546     return S_OK;
2547 }
2548
2549 /* ECMA-262 3rd Edition    11.9.1 */
2550 HRESULT equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2551 {
2552     binary_expression_t *expr = (binary_expression_t*)_expr;
2553     VARIANT rval, lval;
2554     BOOL b;
2555     HRESULT hres;
2556
2557     TRACE("\n");
2558
2559     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2560     if(FAILED(hres))
2561         return hres;
2562
2563     hres = equal_values(ctx, &rval, &lval, ei, &b);
2564     if(FAILED(hres))
2565         return hres;
2566
2567     return return_bool(ret, b);
2568 }
2569
2570 /* ECMA-262 3rd Edition    11.9.4 */
2571 HRESULT equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2572 {
2573     binary_expression_t *expr = (binary_expression_t*)_expr;
2574     VARIANT rval, lval;
2575     BOOL b;
2576     HRESULT hres;
2577
2578     TRACE("\n");
2579
2580     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2581     if(FAILED(hres))
2582         return hres;
2583
2584     hres = equal2_values(&rval, &lval, &b);
2585     if(FAILED(hres))
2586         return hres;
2587
2588     return return_bool(ret, b);
2589 }
2590
2591 /* ECMA-262 3rd Edition    11.9.2 */
2592 HRESULT not_equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2593 {
2594     binary_expression_t *expr = (binary_expression_t*)_expr;
2595     VARIANT rval, lval;
2596     BOOL b;
2597     HRESULT hres;
2598
2599     TRACE("\n");
2600
2601     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2602     if(FAILED(hres))
2603         return hres;
2604
2605     hres = equal_values(ctx, &lval, &rval, ei, &b);
2606     if(FAILED(hres))
2607         return hres;
2608
2609     return return_bool(ret, !b);
2610 }
2611
2612 /* ECMA-262 3rd Edition    11.9.5 */
2613 HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2614 {
2615     binary_expression_t *expr = (binary_expression_t*)_expr;
2616     VARIANT rval, lval;
2617     BOOL b;
2618     HRESULT hres;
2619
2620     TRACE("\n");
2621
2622     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2623     if(FAILED(hres))
2624         return hres;
2625
2626     hres = equal2_values(&lval, &rval, &b);
2627     if(FAILED(hres))
2628         return hres;
2629
2630     return return_bool(ret, !b);
2631 }
2632
2633 /* ECMA-262 3rd Edition    11.8.5 */
2634 static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, BOOL greater, jsexcept_t *ei, BOOL *ret)
2635 {
2636     VARIANT l, r, ln, rn;
2637     HRESULT hres;
2638
2639     hres = to_primitive(ctx->parser->script, lval, ei, &l);
2640     if(FAILED(hres))
2641         return hres;
2642
2643     hres = to_primitive(ctx->parser->script, rval, ei, &r);
2644     if(FAILED(hres)) {
2645         VariantClear(&l);
2646         return hres;
2647     }
2648
2649     if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
2650         *ret = (strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0) ^ greater;
2651         SysFreeString(V_BSTR(&l));
2652         SysFreeString(V_BSTR(&r));
2653         return S_OK;
2654     }
2655
2656     hres = to_number(ctx->parser->script, &l, ei, &ln);
2657     VariantClear(&l);
2658     if(SUCCEEDED(hres))
2659         hres = to_number(ctx->parser->script, &r, ei, &rn);
2660     VariantClear(&r);
2661     if(FAILED(hres))
2662         return hres;
2663
2664     if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4) {
2665         *ret = (V_I4(&ln) < V_I4(&rn)) ^ greater;
2666     }else  {
2667         DOUBLE ld = num_val(&ln);
2668         DOUBLE rd = num_val(&rn);
2669
2670         *ret = !isnan(ld) && !isnan(rd) && ((ld < rd) ^ greater);
2671     }
2672
2673     return S_OK;
2674 }
2675
2676 /* ECMA-262 3rd Edition    11.8.1 */
2677 HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2678 {
2679     binary_expression_t *expr = (binary_expression_t*)_expr;
2680     VARIANT rval, lval;
2681     BOOL b;
2682     HRESULT hres;
2683
2684     TRACE("\n");
2685
2686     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2687     if(FAILED(hres))
2688         return hres;
2689
2690     hres = less_eval(ctx, &lval, &rval, FALSE, ei, &b);
2691     VariantClear(&lval);
2692     VariantClear(&rval);
2693     if(FAILED(hres))
2694         return hres;
2695
2696     return return_bool(ret, b);
2697 }
2698
2699 /* ECMA-262 3rd Edition    11.8.3 */
2700 HRESULT lesseq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2701 {
2702     binary_expression_t *expr = (binary_expression_t*)_expr;
2703     VARIANT rval, lval;
2704     BOOL b;
2705     HRESULT hres;
2706
2707     TRACE("\n");
2708
2709     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2710     if(FAILED(hres))
2711         return hres;
2712
2713     hres = less_eval(ctx, &rval, &lval, TRUE, ei, &b);
2714     VariantClear(&lval);
2715     VariantClear(&rval);
2716     if(FAILED(hres))
2717         return hres;
2718
2719     return return_bool(ret, b);
2720 }
2721
2722 /* ECMA-262 3rd Edition    11.8.2 */
2723 HRESULT greater_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2724 {
2725     binary_expression_t *expr = (binary_expression_t*)_expr;
2726     VARIANT rval, lval;
2727     BOOL b;
2728     HRESULT hres;
2729
2730     TRACE("\n");
2731
2732     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2733     if(FAILED(hres))
2734         return hres;
2735
2736     hres = less_eval(ctx, &rval, &lval, FALSE, ei, &b);
2737     VariantClear(&lval);
2738     VariantClear(&rval);
2739     if(FAILED(hres))
2740         return hres;
2741
2742     return return_bool(ret, b);
2743 }
2744
2745 /* ECMA-262 3rd Edition    11.8.4 */
2746 HRESULT greatereq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2747 {
2748     binary_expression_t *expr = (binary_expression_t*)_expr;
2749     VARIANT rval, lval;
2750     BOOL b;
2751     HRESULT hres;
2752
2753     TRACE("\n");
2754
2755     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2756     if(FAILED(hres))
2757         return hres;
2758
2759     hres = less_eval(ctx, &lval, &rval, TRUE, ei, &b);
2760     VariantClear(&lval);
2761     VariantClear(&rval);
2762     if(FAILED(hres))
2763         return hres;
2764
2765     return return_bool(ret, b);
2766 }
2767
2768 /* ECMA-262 3rd Edition    11.4.8 */
2769 HRESULT binary_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2770 {
2771     unary_expression_t *expr = (unary_expression_t*)_expr;
2772     exprval_t exprval;
2773     VARIANT val;
2774     INT i;
2775     HRESULT hres;
2776
2777     TRACE("\n");
2778
2779     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2780     if(FAILED(hres))
2781         return hres;
2782
2783     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2784     exprval_release(&exprval);
2785     if(FAILED(hres))
2786         return hres;
2787
2788     hres = to_int32(ctx->parser->script, &val, ei, &i);
2789     if(FAILED(hres))
2790         return hres;
2791
2792     ret->type = EXPRVAL_VARIANT;
2793     V_VT(&ret->u.var) = VT_I4;
2794     V_I4(&ret->u.var) = ~i;
2795     return S_OK;
2796 }
2797
2798 /* ECMA-262 3rd Edition    11.4.9 */
2799 HRESULT logical_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2800 {
2801     unary_expression_t *expr = (unary_expression_t*)_expr;
2802     exprval_t exprval;
2803     VARIANT_BOOL b;
2804     HRESULT hres;
2805
2806     TRACE("\n");
2807
2808     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2809     if(FAILED(hres))
2810         return hres;
2811
2812     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
2813     exprval_release(&exprval);
2814     if(FAILED(hres))
2815         return hres;
2816
2817     return return_bool(ret, !b);
2818 }
2819
2820 /* ECMA-262 3rd Edition    11.7.1 */
2821 static HRESULT lshift_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2822 {
2823     DWORD ri;
2824     INT li;
2825     HRESULT hres;
2826
2827     hres = to_int32(ctx->parser->script, lval, ei, &li);
2828     if(FAILED(hres))
2829         return hres;
2830
2831     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2832     if(FAILED(hres))
2833         return hres;
2834
2835     V_VT(retv) = VT_I4;
2836     V_I4(retv) = li << (ri&0x1f);
2837     return S_OK;
2838 }
2839
2840 /* ECMA-262 3rd Edition    11.7.1 */
2841 HRESULT left_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2842 {
2843     binary_expression_t *expr = (binary_expression_t*)_expr;
2844
2845     TRACE("\n");
2846
2847     return binary_expr_eval(ctx, expr, lshift_eval, ei, ret);
2848 }
2849
2850 /* ECMA-262 3rd Edition    11.7.2 */
2851 static HRESULT rshift_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2852 {
2853     DWORD ri;
2854     INT li;
2855     HRESULT hres;
2856
2857     hres = to_int32(ctx->parser->script, lval, ei, &li);
2858     if(FAILED(hres))
2859         return hres;
2860
2861     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2862     if(FAILED(hres))
2863         return hres;
2864
2865     V_VT(retv) = VT_I4;
2866     V_I4(retv) = li >> (ri&0x1f);
2867     return S_OK;
2868 }
2869
2870 /* ECMA-262 3rd Edition    11.7.2 */
2871 HRESULT right_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2872 {
2873     binary_expression_t *expr = (binary_expression_t*)_expr;
2874
2875     TRACE("\n");
2876
2877     return binary_expr_eval(ctx, expr, rshift_eval, ei, ret);
2878 }
2879
2880 /* ECMA-262 3rd Edition    11.7.3 */
2881 static HRESULT rshift2_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2882 {
2883     DWORD li, ri;
2884     HRESULT hres;
2885
2886     hres = to_uint32(ctx->parser->script, lval, ei, &li);
2887     if(FAILED(hres))
2888         return hres;
2889
2890     hres = to_uint32(ctx->parser->script, rval, ei, &ri);
2891     if(FAILED(hres))
2892         return hres;
2893
2894     V_VT(retv) = VT_I4;
2895     V_I4(retv) = li >> (ri&0x1f);
2896     return S_OK;
2897 }
2898
2899 /* ECMA-262 3rd Edition    11.7.3 */
2900 HRESULT right2_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2901 {
2902     binary_expression_t *expr = (binary_expression_t*)_expr;
2903
2904     TRACE("\n");
2905
2906     return binary_expr_eval(ctx, expr, rshift2_eval, ei, ret);
2907 }
2908
2909 /* ECMA-262 3rd Edition    11.13.1 */
2910 HRESULT assign_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2911 {
2912     binary_expression_t *expr = (binary_expression_t*)_expr;
2913     exprval_t exprval, exprvalr;
2914     VARIANT rval;
2915     HRESULT hres;
2916
2917     TRACE("\n");
2918
2919     hres = expr_eval(ctx, expr->expression1, EXPR_NEWREF, ei, &exprval);
2920     if(FAILED(hres))
2921         return hres;
2922
2923     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprvalr);
2924     if(SUCCEEDED(hres)) {
2925         hres = exprval_to_value(ctx->parser->script, &exprvalr, ei, &rval);
2926         exprval_release(&exprvalr);
2927     }
2928
2929     if(SUCCEEDED(hres))
2930         hres = put_value(ctx->parser->script, &exprval, &rval, ei);
2931
2932     exprval_release(&exprval);
2933     if(FAILED(hres))
2934         return hres;
2935
2936     ret->type = EXPRVAL_VARIANT;
2937     ret->u.var = rval;
2938     return S_OK;
2939 }
2940
2941 /* ECMA-262 3rd Edition    11.13.2 */
2942 HRESULT assign_lshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2943 {
2944     binary_expression_t *expr = (binary_expression_t*)_expr;
2945
2946     TRACE("\n");
2947
2948     return assign_oper_eval(ctx, expr->expression1, expr->expression2, lshift_eval, ei, ret);
2949 }
2950
2951 /* ECMA-262 3rd Edition    11.13.2 */
2952 HRESULT assign_rshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2953 {
2954     binary_expression_t *expr = (binary_expression_t*)_expr;
2955
2956     TRACE("\n");
2957
2958     return assign_oper_eval(ctx, expr->expression1, expr->expression2, rshift_eval, ei, ret);
2959 }
2960
2961 /* ECMA-262 3rd Edition    11.13.2 */
2962 HRESULT assign_rrshift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2963 {
2964     binary_expression_t *expr = (binary_expression_t*)_expr;
2965
2966     TRACE("\n");
2967
2968     return assign_oper_eval(ctx, expr->expression1, expr->expression2, rshift2_eval, ei, ret);
2969 }
2970
2971 /* ECMA-262 3rd Edition    11.13.2 */
2972 HRESULT assign_add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2973 {
2974     binary_expression_t *expr = (binary_expression_t*)_expr;
2975
2976     TRACE("\n");
2977
2978     return assign_oper_eval(ctx, expr->expression1, expr->expression2, add_eval, ei, ret);
2979 }
2980
2981 /* ECMA-262 3rd Edition    11.13.2 */
2982 HRESULT assign_sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2983 {
2984     binary_expression_t *expr = (binary_expression_t*)_expr;
2985
2986     TRACE("\n");
2987
2988     return assign_oper_eval(ctx, expr->expression1, expr->expression2, sub_eval, ei, ret);
2989 }
2990
2991 /* ECMA-262 3rd Edition    11.13.2 */
2992 HRESULT assign_mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2993 {
2994     binary_expression_t *expr = (binary_expression_t*)_expr;
2995
2996     TRACE("\n");
2997
2998     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mul_eval, ei, ret);
2999 }
3000
3001 /* ECMA-262 3rd Edition    11.13.2 */
3002 HRESULT assign_div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3003 {
3004     binary_expression_t *expr = (binary_expression_t*)_expr;
3005
3006     TRACE("\n");
3007
3008     return assign_oper_eval(ctx, expr->expression1, expr->expression2, div_eval, ei, ret);
3009 }
3010
3011 /* ECMA-262 3rd Edition    11.13.2 */
3012 HRESULT assign_mod_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3013 {
3014     binary_expression_t *expr = (binary_expression_t*)_expr;
3015
3016     TRACE("\n");
3017
3018     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mod_eval, ei, ret);
3019 }
3020
3021 /* ECMA-262 3rd Edition    11.13.2 */
3022 HRESULT assign_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3023 {
3024     binary_expression_t *expr = (binary_expression_t*)_expr;
3025
3026     TRACE("\n");
3027
3028     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitand_eval, ei, ret);
3029 }
3030
3031 /* ECMA-262 3rd Edition    11.13.2 */
3032 HRESULT assign_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3033 {
3034     binary_expression_t *expr = (binary_expression_t*)_expr;
3035
3036     TRACE("\n");
3037
3038     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitor_eval, ei, ret);
3039 }
3040
3041 /* ECMA-262 3rd Edition    11.13.2 */
3042 HRESULT assign_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3043 {
3044     binary_expression_t *expr = (binary_expression_t*)_expr;
3045
3046     TRACE("\n");
3047
3048     return assign_oper_eval(ctx, expr->expression1, expr->expression2, xor_eval, ei, ret);
3049 }