dlls/jscript/engine.c

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "jscript.h"
  20 #include "engine.h"
  21
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  25
  26 #define EXPR_NOVAL   0x0001
  27 #define EXPR_NEWREF  0x0002
  28 #define EXPR_STRREF  0x0004
  29
  30 static inline HRESULT stat_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
  31 {
  32     return stat->eval(ctx, stat, rt, ret);
  33 }
  34
  35 static inline HRESULT expr_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
  36 {
  37     return _expr->eval(ctx, _expr, flags, ei, ret);
  38 }
  39
  40 static void exprval_release(exprval_t *val)
  41 {
  42     switch(val->type) {
  43     case EXPRVAL_VARIANT:
  44         if(V_VT(&val->u.var) != VT_EMPTY)
  45             VariantClear(&val->u.var);
  46         return;
  47     case EXPRVAL_IDREF:
  48         if(val->u.idref.disp)
  49             IDispatch_Release(val->u.idref.disp);
  50         return;
  51     case EXPRVAL_NAMEREF:
  52         if(val->u.nameref.disp)
  53             IDispatch_Release(val->u.nameref.disp);
  54         SysFreeString(val->u.nameref.name);
  55     }
  56 }
  57
  58 /* ECMA-262 3rd Edition    8.7.1 */
  59 static HRESULT exprval_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  60 {
  61     V_VT(ret) = VT_EMPTY;
  62
  63     switch(val->type) {
  64     case EXPRVAL_VARIANT:
  65         return VariantCopy(ret, &val->u.var);
  66     case EXPRVAL_IDREF:
  67         if(!val->u.idref.disp) {
  68             FIXME("throw ReferenceError\n");
  69             return E_FAIL;
  70         }
  71
  72         return disp_propget(val->u.idref.disp, val->u.idref.id, ctx->lcid, ret, ei, NULL/*FIXME*/);
  73     default:
  74         ERR("type %d\n", val->type);
  75         return E_FAIL;
  76     }
  77 }
  78
  79 static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
  80 {
  81     if(val->type == EXPRVAL_VARIANT) {
  82         *ret = val->u.var;
  83         V_VT(&val->u.var) = VT_EMPTY;
  84         return S_OK;
  85     }
  86
  87     return exprval_value(ctx, val, ei, ret);
  88 }
  89
  90 static HRESULT exprval_to_boolean(script_ctx_t *ctx, exprval_t *exprval, jsexcept_t *ei, VARIANT_BOOL *b)
  91 {
  92     if(exprval->type != EXPRVAL_VARIANT) {
  93         VARIANT val;
  94         HRESULT hres;
  95
  96         hres = exprval_to_value(ctx, exprval, ei, &val);
  97         if(FAILED(hres))
  98             return hres;
  99
 100         hres = to_boolean(&val, b);
 101         VariantClear(&val);
 102         return hres;
 103     }
 104
 105     return to_boolean(&exprval->u.var, b);
 106 }
 107
 108 static void exprval_init(exprval_t *val)
 109 {
 110     val->type = EXPRVAL_VARIANT;
 111     V_VT(&val->u.var) = VT_EMPTY;
 112 }
 113
 114 static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
 115 {
 116     val->type = EXPRVAL_IDREF;
 117     val->u.idref.disp = disp;
 118     val->u.idref.id = id;
 119
 120     if(disp)
 121         IDispatch_AddRef(disp);
 122 }
 123
 124 HRESULT scope_push(scope_chain_t *scope, DispatchEx *obj, scope_chain_t **ret)
 125 {
 126     scope_chain_t *new_scope;
 127
 128     new_scope = heap_alloc(sizeof(scope_chain_t));
 129     if(!new_scope)
 130         return E_OUTOFMEMORY;
 131
 132     new_scope->ref = 1;
 133
 134     IDispatchEx_AddRef(_IDispatchEx_(obj));
 135     new_scope->obj = obj;
 136
 137     if(scope) {
 138         scope_addref(scope);
 139         new_scope->next = scope;
 140     }else {
 141         new_scope->next = NULL;
 142     }
 143
 144     *ret = new_scope;
 145     return S_OK;
 146 }
 147
 148 static void scope_pop(scope_chain_t **scope)
 149 {
 150     scope_chain_t *tmp;
 151
 152     tmp = *scope;
 153     *scope = tmp->next;
 154     scope_release(tmp);
 155 }
 156
 157 void scope_release(scope_chain_t *scope)
 158 {
 159     if(--scope->ref)
 160         return;
 161
 162     if(scope->next)
 163         scope_release(scope->next);
 164
 165     IDispatchEx_Release(_IDispatchEx_(scope->obj));
 166     heap_free(scope);
 167 }
 168
 169 HRESULT create_exec_ctx(IDispatch *this_obj, DispatchEx *var_disp, scope_chain_t *scope, exec_ctx_t **ret)
 170 {
 171     exec_ctx_t *ctx;
 172
 173     ctx = heap_alloc_zero(sizeof(exec_ctx_t));
 174     if(!ctx)
 175         return E_OUTOFMEMORY;
 176
 177     IDispatch_AddRef(this_obj);
 178     ctx->this_obj = this_obj;
 179
 180     IDispatchEx_AddRef(_IDispatchEx_(var_disp));
 181     ctx->var_disp = var_disp;
 182
 183     if(scope) {
 184         scope_addref(scope);
 185         ctx->scope_chain = scope;
 186     }
 187
 188     *ret = ctx;
 189     return S_OK;
 190 }
 191
 192 void exec_release(exec_ctx_t *ctx)
 193 {
 194     if(--ctx->ref)
 195         return;
 196
 197     if(ctx->scope_chain)
 198         scope_release(ctx->scope_chain);
 199     if(ctx->var_disp)
 200         IDispatchEx_Release(_IDispatchEx_(ctx->var_disp));
 201     if(ctx->this_obj)
 202         IDispatch_Release(ctx->this_obj);
 203     heap_free(ctx);
 204 }
 205
 206 static HRESULT dispex_get_id(IDispatchEx *dispex, BSTR name, DWORD flags, DISPID *id)
 207 {
 208     *id = 0;
 209
 210     return IDispatchEx_GetDispID(dispex, name, flags|fdexNameCaseSensitive, id);
 211 }
 212
 213 static HRESULT disp_get_id(IDispatch *disp, BSTR name, DWORD flags, DISPID *id)
 214 {
 215     IDispatchEx *dispex;
 216     HRESULT hres;
 217
 218     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 219     if(FAILED(hres)) {
 220         TRACE("unsing IDispatch\n");
 221
 222         *id = 0;
 223         return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
 224     }
 225
 226     hres = dispex_get_id(dispex, name, flags, id);
 227     IDispatchEx_Release(dispex);
 228     return hres;
 229 }
 230
 231 /* ECMA-262 3rd Edition    8.7.2 */
 232 static HRESULT put_value(script_ctx_t *ctx, exprval_t *ref, VARIANT *v, jsexcept_t *ei)
 233 {
 234     if(ref->type != EXPRVAL_IDREF) {
 235         FIXME("throw ReferemceError\n");
 236         return E_FAIL;
 237     }
 238
 239     return disp_propput(ref->u.idref.disp, ref->u.idref.id, ctx->lcid, v, ei, NULL/*FIXME*/);
 240 }
 241
 242 static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret)
 243 {
 244     IObjectIdentity *identity;
 245     IUnknown *unk1, *unk2;
 246     HRESULT hres;
 247
 248     if(disp1 == disp2) {
 249         *ret = TRUE;
 250         return S_OK;
 251     }
 252
 253     hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1);
 254     if(FAILED(hres))
 255         return hres;
 256
 257     hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2);
 258     if(FAILED(hres)) {
 259         IUnknown_Release(unk1);
 260         return hres;
 261     }
 262
 263     if(unk1 == unk2) {
 264         *ret = TRUE;
 265     }else {
 266         hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity);
 267         if(SUCCEEDED(hres)) {
 268             hres = IObjectIdentity_IsEqualObject(identity, unk2);
 269             IObjectIdentity_Release(identity);
 270             *ret = hres == S_OK;
 271         }else {
 272             *ret = FALSE;
 273         }
 274     }
 275
 276     IUnknown_Release(unk1);
 277     IUnknown_Release(unk2);
 278     return S_OK;
 279 }
 280
 281 static inline BOOL is_num_vt(enum VARENUM vt)
 282 {
 283     return vt == VT_I4 || vt == VT_R8;
 284 }
 285
 286 static inline DOUBLE num_val(const VARIANT *v)
 287 {
 288     return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
 289 }
 290
 291 static inline void num_set_val(VARIANT *v, DOUBLE d)
 292 {
 293     if(d == (DOUBLE)(INT)d) {
 294         V_VT(v) = VT_I4;
 295         V_I4(v) = d;
 296     }else {
 297         V_VT(v) = VT_R8;
 298         V_R8(v) = d;
 299     }
 300 }
 301
 302 /* ECMA-262 3rd Edition    11.9.6 */
 303 HRESULT equal2_values(VARIANT *lval, VARIANT *rval, BOOL *ret)
 304 {
 305     TRACE("\n");
 306
 307     if(V_VT(lval) != V_VT(rval)) {
 308         if(is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))) {
 309             *ret = num_val(lval) == num_val(rval);
 310             return S_OK;
 311         }
 312
 313         *ret = FALSE;
 314         return S_OK;
 315     }
 316
 317     switch(V_VT(lval)) {
 318     case VT_EMPTY:
 319     case VT_NULL:
 320         *ret = VARIANT_TRUE;
 321         break;
 322     case VT_I4:
 323         *ret = V_I4(lval) == V_I4(rval);
 324         break;
 325     case VT_R8:
 326         *ret = V_R8(lval) == V_R8(rval);
 327         break;
 328     case VT_BSTR:
 329         *ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
 330         break;
 331     case VT_DISPATCH:
 332         return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
 333     case VT_BOOL:
 334         *ret = !V_BOOL(lval) == !V_BOOL(rval);
 335         break;
 336     default:
 337         FIXME("unimplemented vt %d\n", V_VT(lval));
 338         return E_NOTIMPL;
 339     }
 340
 341     return S_OK;
 342 }
 343
 344 static HRESULT literal_to_var(literal_t *literal, VARIANT *v)
 345 {
 346     V_VT(v) = literal->vt;
 347
 348     switch(V_VT(v)) {
 349     case VT_EMPTY:
 350     case VT_NULL:
 351         break;
 352     case VT_I4:
 353         V_I4(v) = literal->u.lval;
 354         break;
 355     case VT_R8:
 356         V_R8(v) = literal->u.dval;
 357         break;
 358     case VT_BSTR:
 359         V_BSTR(v) = SysAllocString(literal->u.wstr);
 360         break;
 361     case VT_BOOL:
 362         V_BOOL(v) = literal->u.bval;
 363         break;
 364     case VT_DISPATCH:
 365         IDispatch_AddRef(literal->u.disp);
 366         V_DISPATCH(v) = literal->u.disp;
 367         break;
 368     default:
 369         ERR("wrong type %d\n", V_VT(v));
 370         return E_NOTIMPL;
 371     }
 372
 373     return S_OK;
 374 }
 375
 376 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, jsexcept_t *ei, VARIANT *retv)
 377 {
 378     script_ctx_t *script = parser->script;
 379     function_declaration_t *func;
 380     parser_ctx_t *prev_parser;
 381     VARIANT val, tmp;
 382     statement_t *stat;
 383     exec_ctx_t *prev_ctx;
 384     return_type_t rt;
 385     HRESULT hres = S_OK;
 386
 387     for(func = source->functions; func; func = func->next) {
 388         DispatchEx *func_obj;
 389         VARIANT var;
 390
 391         hres = create_source_function(parser, func->parameter_list, func->source_elements, ctx->scope_chain, &func_obj);
 392         if(FAILED(hres))
 393             return hres;
 394
 395         V_VT(&var) = VT_DISPATCH;
 396         V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(func_obj);
 397         hres = jsdisp_propput_name(ctx->var_disp, func->identifier, script->lcid, &var, ei, NULL);
 398         IDispatchEx_Release(_IDispatchEx_(func_obj));
 399         if(FAILED(hres))
 400             return hres;
 401     }
 402
 403     prev_ctx = script->exec_ctx;
 404     script->exec_ctx = ctx;
 405
 406     prev_parser = ctx->parser;
 407     ctx->parser = parser;
 408
 409     V_VT(&val) = VT_EMPTY;
 410     memset(&rt, 0, sizeof(rt));
 411     rt.type = RT_NORMAL;
 412
 413     for(stat = source->statement; stat; stat = stat->next) {
 414         hres = stat_eval(ctx, stat, &rt, &tmp);
 415         if(FAILED(hres))
 416             break;
 417
 418         VariantClear(&val);
 419         val = tmp;
 420         if(rt.type != RT_NORMAL)
 421             break;
 422     }
 423
 424     script->exec_ctx = prev_ctx;
 425     ctx->parser = prev_parser;
 426
 427     if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
 428         FIXME("wrong rt %d\n", rt.type);
 429         hres = E_FAIL;
 430     }
 431
 432     *ei = rt.ei;
 433     if(FAILED(hres)) {
 434         VariantClear(&val);
 435         return hres;
 436     }
 437
 438     if(retv)
 439         *retv = val;
 440     else
 441         VariantClear(&val);
 442     return S_OK;
 443 }
 444
 445 /* ECMA-262 3rd Edition    10.1.4 */
 446 static HRESULT identifier_eval(exec_ctx_t *ctx, BSTR identifier, DWORD flags, exprval_t *ret)
 447 {
 448     scope_chain_t *scope;
 449     named_item_t *item;
 450     DISPID id = 0;
 451     HRESULT hres;
 452
 453     TRACE("%s\n", debugstr_w(identifier));
 454
 455     for(scope = ctx->scope_chain; scope; scope = scope->next) {
 456         hres = dispex_get_id(_IDispatchEx_(scope->obj), identifier, 0, &id);
 457         if(SUCCEEDED(hres))
 458             break;
 459     }
 460
 461     if(scope) {
 462         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(scope->obj), id);
 463         return S_OK;
 464     }
 465
 466     hres = dispex_get_id(_IDispatchEx_(ctx->parser->script->global), identifier, 0, &id);
 467     if(SUCCEEDED(hres)) {
 468         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->global), id);
 469         return S_OK;
 470     }
 471
 472     for(item = ctx->parser->script->named_items; item; item = item->next) {
 473         hres = disp_get_id(item->disp, identifier, 0, &id);
 474         if(SUCCEEDED(hres))
 475             break;
 476     }
 477
 478     if(item) {
 479         exprval_set_idref(ret, (IDispatch*)item->disp, id);
 480         return S_OK;
 481     }
 482
 483     hres = dispex_get_id(_IDispatchEx_(ctx->parser->script->script_disp), identifier, 0, &id);
 484     if(SUCCEEDED(hres)) {
 485         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->script_disp), id);
 486         return S_OK;
 487     }
 488
 489     if(flags & EXPR_NEWREF) {
 490         hres = dispex_get_id(_IDispatchEx_(ctx->var_disp), identifier, fdexNameEnsure, &id);
 491         if(FAILED(hres))
 492             return hres;
 493
 494         exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->var_disp), id);
 495         return S_OK;
 496     }
 497
 498     WARN("Could not find identifier %s\n", debugstr_w(identifier));
 499     return E_FAIL;
 500 }
 501
 502 /* ECMA-262 3rd Edition    12.1 */
 503 HRESULT block_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 504 {
 505     block_statement_t *stat = (block_statement_t*)_stat;
 506     VARIANT val, tmp;
 507     statement_t *iter;
 508     HRESULT hres = S_OK;
 509
 510     TRACE("\n");
 511
 512     V_VT(&val) = VT_EMPTY;
 513     for(iter = stat->stat_list; iter; iter = iter->next) {
 514         hres = stat_eval(ctx, iter, rt, &tmp);
 515         if(FAILED(hres))
 516             break;
 517
 518         VariantClear(&val);
 519         val = tmp;
 520         if(rt->type != RT_NORMAL)
 521             break;
 522     }
 523
 524     if(FAILED(hres)) {
 525         VariantClear(&val);
 526         return hres;
 527     }
 528
 529     *ret = val;
 530     return S_OK;
 531 }
 532
 533 /* ECMA-262 3rd Edition    12.2 */
 534 static HRESULT variable_list_eval(exec_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
 535 {
 536     variable_declaration_t *iter;
 537     HRESULT hres = E_FAIL;
 538
 539     for(iter = var_list; iter; iter = iter->next) {
 540         VARIANT val;
 541
 542         if(iter->expr) {
 543             exprval_t exprval;
 544
 545             hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
 546             if(FAILED(hres))
 547                 break;
 548
 549             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
 550             exprval_release(&exprval);
 551             if(FAILED(hres))
 552                 break;
 553         }else {
 554             V_VT(&val) = VT_EMPTY;
 555         }
 556
 557         hres = jsdisp_propput_name(ctx->var_disp, iter->identifier, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
 558         VariantClear(&val);
 559         if(FAILED(hres))
 560             break;
 561     }
 562
 563     return hres;
 564 }
 565
 566 /* ECMA-262 3rd Edition    12.2 */
 567 HRESULT var_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 568 {
 569     var_statement_t *stat = (var_statement_t*)_stat;
 570     HRESULT hres;
 571
 572     TRACE("\n");
 573
 574     hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
 575     if(FAILED(hres))
 576         return hres;
 577
 578     V_VT(ret) = VT_EMPTY;
 579     return S_OK;
 580 }
 581
 582 /* ECMA-262 3rd Edition    12.3 */
 583 HRESULT empty_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 584 {
 585     TRACE("\n");
 586
 587     V_VT(ret) = VT_EMPTY;
 588     return S_OK;
 589 }
 590
 591 /* ECMA-262 3rd Edition    12.4 */
 592 HRESULT expression_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 593 {
 594     expression_statement_t *stat = (expression_statement_t*)_stat;
 595     exprval_t exprval;
 596     VARIANT val;
 597     HRESULT hres;
 598
 599     TRACE("\n");
 600
 601     hres = expr_eval(ctx, stat->expr, EXPR_NOVAL, &rt->ei, &exprval);
 602     if(FAILED(hres))
 603         return hres;
 604
 605     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 606     exprval_release(&exprval);
 607     if(FAILED(hres))
 608         return hres;
 609
 610     *ret = val;
 611     TRACE("= %s\n", debugstr_variant(ret));
 612     return S_OK;
 613 }
 614
 615 /* ECMA-262 3rd Edition    12.5 */
 616 HRESULT if_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 617 {
 618     if_statement_t *stat = (if_statement_t*)_stat;
 619     exprval_t exprval;
 620     VARIANT_BOOL b;
 621     HRESULT hres;
 622
 623     TRACE("\n");
 624
 625     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 626     if(FAILED(hres))
 627         return hres;
 628
 629     hres = exprval_to_boolean(ctx->parser->script, &exprval, &rt->ei, &b);
 630     exprval_release(&exprval);
 631     if(FAILED(hres))
 632         return hres;
 633
 634     if(b)
 635         hres = stat_eval(ctx, stat->if_stat, rt, ret);
 636     else if(stat->else_stat)
 637         hres = stat_eval(ctx, stat->else_stat, rt, ret);
 638     else
 639         V_VT(ret) = VT_EMPTY;
 640
 641     return hres;
 642 }
 643
 644 HRESULT dowhile_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 645 {
 646     FIXME("\n");
 647     return E_NOTIMPL;
 648 }
 649
 650 HRESULT while_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 651 {
 652     FIXME("\n");
 653     return E_NOTIMPL;
 654 }
 655
 656 HRESULT for_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 657 {
 658     FIXME("\n");
 659     return E_NOTIMPL;
 660 }
 661
 662 HRESULT forin_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 663 {
 664     FIXME("\n");
 665     return E_NOTIMPL;
 666 }
 667
 668 HRESULT continue_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 669 {
 670     FIXME("\n");
 671     return E_NOTIMPL;
 672 }
 673
 674 /* ECMA-262 3rd Edition    12.8 */
 675 HRESULT break_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 676 {
 677     branch_statement_t *stat = (branch_statement_t*)_stat;
 678
 679     TRACE("\n");
 680
 681     if(stat->identifier) {
 682         FIXME("indentifier not implemented\n");
 683         return E_NOTIMPL;
 684     }
 685
 686     rt->type = RT_BREAK;
 687     V_VT(ret) = VT_EMPTY;
 688     return S_OK;
 689 }
 690
 691 /* ECMA-262 3rd Edition    12.9 */
 692 HRESULT return_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 693 {
 694     expression_statement_t *stat = (expression_statement_t*)_stat;
 695     HRESULT hres;
 696
 697     TRACE("\n");
 698
 699     if(stat->expr) {
 700         exprval_t exprval;
 701
 702         hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 703         if(FAILED(hres))
 704             return hres;
 705
 706         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, ret);
 707         exprval_release(&exprval);
 708         if(FAILED(hres))
 709             return hres;
 710     }else {
 711         V_VT(ret) = VT_EMPTY;
 712     }
 713
 714     TRACE("= %s\n", debugstr_variant(ret));
 715     rt->type = RT_RETURN;
 716     return S_OK;
 717 }
 718
 719 HRESULT with_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 720 {
 721     FIXME("\n");
 722     return E_NOTIMPL;
 723 }
 724
 725 HRESULT labelled_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 726 {
 727     FIXME("\n");
 728     return E_NOTIMPL;
 729 }
 730
 731 /* ECMA-262 3rd Edition    12.13 */
 732 HRESULT switch_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 733 {
 734     switch_statement_t *stat = (switch_statement_t*)_stat;
 735     case_clausule_t *iter, *default_clausule = NULL;
 736     statement_t *stat_iter;
 737     VARIANT val, cval;
 738     exprval_t exprval;
 739     BOOL b;
 740     HRESULT hres;
 741
 742     TRACE("\n");
 743
 744     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 745     if(FAILED(hres))
 746         return hres;
 747
 748     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 749     exprval_release(&exprval);
 750     if(FAILED(hres))
 751         return hres;
 752
 753     for(iter = stat->case_list; iter; iter = iter->next) {
 754         if(!iter->expr) {
 755             default_clausule = iter;
 756             continue;
 757         }
 758
 759         hres = expr_eval(ctx, iter->expr, 0, &rt->ei, &exprval);
 760         if(FAILED(hres))
 761             break;
 762
 763         hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &cval);
 764         exprval_release(&exprval);
 765         if(FAILED(hres))
 766             break;
 767
 768         hres = equal2_values(&val, &cval, &b);
 769         VariantClear(&cval);
 770         if(FAILED(hres) || b)
 771             break;
 772     }
 773
 774     VariantClear(&val);
 775     if(FAILED(hres))
 776         return hres;
 777
 778     if(!iter)
 779         iter = default_clausule;
 780
 781     V_VT(&val) = VT_EMPTY;
 782     if(iter) {
 783         VARIANT tmp;
 784
 785         for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
 786             hres = stat_eval(ctx, stat_iter, rt, &tmp);
 787             if(FAILED(hres))
 788                 break;
 789
 790             VariantClear(&val);
 791             val = tmp;
 792
 793             if(rt->type != RT_NORMAL)
 794                 break;
 795         }
 796     }
 797
 798     if(FAILED(hres)) {
 799         VariantClear(&val);
 800         return hres;
 801     }
 802
 803     if(rt->type == RT_BREAK)
 804         rt->type = RT_NORMAL;
 805
 806     *ret = val;
 807     return S_OK;
 808 }
 809
 810 /* ECMA-262 3rd Edition    12.13 */
 811 HRESULT throw_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 812 {
 813     expression_statement_t *stat = (expression_statement_t*)_stat;
 814     exprval_t exprval;
 815     VARIANT val;
 816     HRESULT hres;
 817
 818     TRACE("\n");
 819
 820     hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
 821     if(FAILED(hres))
 822         return hres;
 823
 824     hres = exprval_to_value(ctx->parser->script, &exprval, &rt->ei, &val);
 825     exprval_release(&exprval);
 826     if(FAILED(hres))
 827         return hres;
 828
 829     rt->ei.var = val;
 830     return DISP_E_EXCEPTION;
 831 }
 832
 833 /* ECMA-262 3rd Edition    12.14 */
 834 static HRESULT catch_eval(exec_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
 835 {
 836     DispatchEx *var_disp;
 837     VARIANT ex, val;
 838     HRESULT hres;
 839
 840     ex = rt->ei.var;
 841     memset(&rt->ei, 0, sizeof(jsexcept_t));
 842
 843     hres = create_dispex(ctx->parser->script, NULL, NULL, &var_disp);
 844     if(SUCCEEDED(hres)) {
 845         hres = jsdisp_propput_name(var_disp, block->identifier, ctx->parser->script->lcid,
 846                 &ex, &rt->ei, NULL/*FIXME*/);
 847         if(SUCCEEDED(hres)) {
 848             hres = scope_push(ctx->scope_chain, var_disp, &ctx->scope_chain);
 849             if(SUCCEEDED(hres)) {
 850                 hres = stat_eval(ctx, block->statement, rt, &val);
 851                 scope_pop(&ctx->scope_chain);
 852             }
 853         }
 854
 855         jsdisp_release(var_disp);
 856     }
 857
 858     VariantClear(&ex);
 859     if(FAILED(hres))
 860         return hres;
 861
 862     *ret = val;
 863     return S_OK;
 864 }
 865
 866 /* ECMA-262 3rd Edition    12.14 */
 867 HRESULT try_statement_eval(exec_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
 868 {
 869     try_statement_t *stat = (try_statement_t*)_stat;
 870     VARIANT val;
 871     HRESULT hres;
 872
 873     TRACE("\n");
 874
 875     hres = stat_eval(ctx, stat->try_statement, rt, &val);
 876     if(FAILED(hres)) {
 877         TRACE("EXCEPTION\n");
 878         if(!stat->catch_block)
 879             return hres;
 880
 881         hres = catch_eval(ctx, stat->catch_block, rt, &val);
 882         if(FAILED(hres))
 883             return hres;
 884     }
 885
 886     if(stat->finally_statement) {
 887         VariantClear(&val);
 888         hres = stat_eval(ctx, stat->finally_statement, rt, &val);
 889         if(FAILED(hres))
 890             return hres;
 891     }
 892
 893     *ret = val;
 894     return S_OK;
 895 }
 896
 897 static HRESULT return_bool(exprval_t *ret, DWORD b)
 898 {
 899     ret->type = EXPRVAL_VARIANT;
 900     V_VT(&ret->u.var) = VT_BOOL;
 901     V_BOOL(&ret->u.var) = b ? VARIANT_TRUE : VARIANT_FALSE;
 902
 903     return S_OK;
 904 }
 905
 906 static HRESULT get_binary_expr_values(exec_ctx_t *ctx, binary_expression_t *expr, jsexcept_t *ei, VARIANT *lval, VARIANT *rval)
 907 {
 908     exprval_t exprval;
 909     HRESULT hres;
 910
 911     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
 912     if(FAILED(hres))
 913         return hres;
 914
 915     hres = exprval_to_value(ctx->parser->script, &exprval, ei, lval);
 916     exprval_release(&exprval);
 917     if(FAILED(hres))
 918         return hres;
 919
 920     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
 921     if(SUCCEEDED(hres)) {
 922         hres = exprval_to_value(ctx->parser->script, &exprval, ei, rval);
 923         exprval_release(&exprval);
 924     }
 925
 926     if(FAILED(hres)) {
 927         VariantClear(lval);
 928         return hres;
 929     }
 930
 931     return S_OK;
 932 }
 933
 934 typedef HRESULT (*oper_t)(exec_ctx_t*,VARIANT*,VARIANT*,jsexcept_t*,VARIANT*);
 935
 936 static HRESULT binary_expr_eval(exec_ctx_t *ctx, binary_expression_t *expr, oper_t oper, jsexcept_t *ei,
 937         exprval_t *ret)
 938 {
 939     VARIANT lval, rval, retv;
 940     HRESULT hres;
 941
 942     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
 943     if(FAILED(hres))
 944         return hres;
 945
 946     hres = oper(ctx, &lval, &rval, ei, &retv);
 947     VariantClear(&lval);
 948     VariantClear(&rval);
 949     if(FAILED(hres))
 950         return hres;
 951
 952     ret->type = EXPRVAL_VARIANT;
 953     ret->u.var = retv;
 954     return S_OK;
 955 }
 956
 957 /* ECMA-262 3rd Edition    11.13.2 */
 958 static HRESULT assign_oper_eval(exec_ctx_t *ctx, expression_t *lexpr, expression_t *rexpr, oper_t oper,
 959                                 jsexcept_t *ei, exprval_t *ret)
 960 {
 961     VARIANT retv, lval, rval;
 962     exprval_t exprval, exprvalr;
 963     HRESULT hres;
 964
 965     hres = expr_eval(ctx, lexpr, EXPR_NEWREF, ei, &exprval);
 966     if(FAILED(hres))
 967         return hres;
 968
 969     hres = exprval_value(ctx->parser->script, &exprval, ei, &lval);
 970     if(SUCCEEDED(hres)) {
 971         hres = expr_eval(ctx, rexpr, 0, ei, &exprvalr);
 972         if(SUCCEEDED(hres)) {
 973             hres = exprval_value(ctx->parser->script, &exprvalr, ei, &rval);
 974             exprval_release(&exprvalr);
 975         }
 976         if(SUCCEEDED(hres)) {
 977             hres = oper(ctx, &lval, &rval, ei, &retv);
 978             VariantClear(&rval);
 979         }
 980         VariantClear(&lval);
 981     }
 982
 983     if(SUCCEEDED(hres)) {
 984         hres = put_value(ctx->parser->script, &exprval, &retv, ei);
 985         if(FAILED(hres))
 986             VariantClear(&retv);
 987     }
 988     exprval_release(&exprval);
 989
 990     if(FAILED(hres))
 991         return hres;
 992
 993     ret->type = EXPRVAL_VARIANT;
 994     ret->u.var = retv;
 995     return S_OK;
 996 }
 997
 998 /* ECMA-262 3rd Edition    13 */
 999 HRESULT function_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1000 {
1001     function_expression_t *expr = (function_expression_t*)_expr;
1002     DispatchEx *dispex;
1003     VARIANT var;
1004     HRESULT hres;
1005
1006     TRACE("\n");
1007
1008     hres = create_source_function(ctx->parser, expr->parameter_list, expr->source_elements, ctx->scope_chain, &dispex);
1009     if(FAILED(hres))
1010         return hres;
1011
1012     V_VT(&var) = VT_DISPATCH;
1013     V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(dispex);
1014
1015     if(expr->identifier) {
1016         hres = jsdisp_propput_name(ctx->var_disp, expr->identifier, ctx->parser->script->lcid, &var, ei, NULL/*FIXME*/);
1017         if(FAILED(hres)) {
1018             jsdisp_release(dispex);
1019             return hres;
1020         }
1021     }
1022
1023     ret->type = EXPRVAL_VARIANT;
1024     ret->u.var = var;
1025     return S_OK;
1026 }
1027
1028 /* ECMA-262 3rd Edition    11.12 */
1029 HRESULT conditional_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1030 {
1031     conditional_expression_t *expr = (conditional_expression_t*)_expr;
1032     exprval_t exprval;
1033     VARIANT_BOOL b;
1034     HRESULT hres;
1035
1036     TRACE("\n");
1037
1038     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1039     if(FAILED(hres))
1040         return hres;
1041
1042     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
1043     exprval_release(&exprval);
1044     if(FAILED(hres))
1045         return hres;
1046
1047     return expr_eval(ctx, b ? expr->true_expression : expr->false_expression, flags, ei, ret);
1048 }
1049
1050 /* ECMA-262 3rd Edition    11.2.1 */
1051 HRESULT array_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1052 {
1053     array_expression_t *expr = (array_expression_t*)_expr;
1054     exprval_t exprval;
1055     VARIANT member, val;
1056     DISPID id;
1057     BSTR str;
1058     IDispatch *obj = NULL;
1059     HRESULT hres;
1060
1061     TRACE("\n");
1062
1063     hres = expr_eval(ctx, expr->member_expr, EXPR_NEWREF, ei, &exprval);
1064     if(FAILED(hres))
1065         return hres;
1066
1067     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1068     exprval_release(&exprval);
1069     if(FAILED(hres))
1070         return hres;
1071
1072     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1073     if(SUCCEEDED(hres)) {
1074         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1075         exprval_release(&exprval);
1076     }
1077
1078     if(SUCCEEDED(hres))
1079         hres = to_object(ctx, &member, &obj);
1080     VariantClear(&member);
1081     if(SUCCEEDED(hres)) {
1082         hres = to_string(ctx->parser->script, &val, ei, &str);
1083         if(SUCCEEDED(hres)) {
1084             if(flags & EXPR_STRREF) {
1085                 ret->type = EXPRVAL_NAMEREF;
1086                 ret->u.nameref.disp = obj;
1087                 ret->u.nameref.name = str;
1088                 return S_OK;
1089             }
1090
1091             hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1092         }
1093
1094         if(SUCCEEDED(hres)) {
1095             exprval_set_idref(ret, obj, id);
1096         }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1097             exprval_init(ret);
1098             hres = S_OK;
1099         }
1100
1101         IDispatch_Release(obj);
1102     }
1103
1104     return hres;
1105 }
1106
1107 /* ECMA-262 3rd Edition    11.2.1 */
1108 HRESULT member_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1109 {
1110     member_expression_t *expr = (member_expression_t*)_expr;
1111     IDispatch *obj = NULL;
1112     exprval_t exprval;
1113     VARIANT member;
1114     DISPID id;
1115     BSTR str;
1116     HRESULT hres;
1117
1118     TRACE("\n");
1119
1120     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1121     if(FAILED(hres))
1122         return hres;
1123
1124     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &member);
1125     exprval_release(&exprval);
1126     if(FAILED(hres))
1127         return hres;
1128
1129     hres = to_object(ctx, &member, &obj);
1130     VariantClear(&member);
1131     if(FAILED(hres))
1132         return hres;
1133
1134     str = SysAllocString(expr->identifier);
1135     if(flags & EXPR_STRREF) {
1136         ret->type = EXPRVAL_NAMEREF;
1137         ret->u.nameref.disp = obj;
1138         ret->u.nameref.name = str;
1139         return S_OK;
1140     }
1141
1142     hres = disp_get_id(obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1143     SysFreeString(str);
1144     if(SUCCEEDED(hres)) {
1145         exprval_set_idref(ret, obj, id);
1146     }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1147         exprval_init(ret);
1148         hres = S_OK;
1149     }
1150
1151     IDispatch_Release(obj);
1152     return hres;
1153 }
1154
1155 static void free_dp(DISPPARAMS *dp)
1156 {
1157     DWORD i;
1158
1159     for(i=0; i < dp->cArgs; i++)
1160         VariantClear(dp->rgvarg+i);
1161     heap_free(dp->rgvarg);
1162 }
1163
1164 static HRESULT args_to_param(exec_ctx_t *ctx, argument_t *args, jsexcept_t *ei, DISPPARAMS *dp)
1165 {
1166     VARIANTARG *vargs;
1167     exprval_t exprval;
1168     argument_t *iter;
1169     DWORD cnt = 0, i;
1170     HRESULT hres = S_OK;
1171
1172     memset(dp, 0, sizeof(*dp));
1173     if(!args)
1174         return S_OK;
1175
1176     for(iter = args; iter; iter = iter->next)
1177         cnt++;
1178
1179     vargs = heap_alloc_zero(cnt * sizeof(*vargs));
1180     if(!vargs)
1181         return E_OUTOFMEMORY;
1182
1183     for(i = cnt, iter = args; iter; iter = iter->next) {
1184         hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
1185         if(FAILED(hres))
1186             break;
1187
1188         hres = exprval_to_value(ctx->parser->script, &exprval, ei, vargs + (--i));
1189         exprval_release(&exprval);
1190         if(FAILED(hres))
1191             break;
1192     }
1193
1194     if(FAILED(hres)) {
1195         free_dp(dp);
1196         return hres;
1197     }
1198
1199     dp->rgvarg = vargs;
1200     dp->cArgs = cnt;
1201     return S_OK;
1202 }
1203
1204 /* ECMA-262 3rd Edition    11.2.2 */
1205 HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1206 {
1207     call_expression_t *expr = (call_expression_t*)_expr;
1208     exprval_t exprval;
1209     VARIANT constr, var;
1210     DISPPARAMS dp;
1211     HRESULT hres;
1212
1213     TRACE("\n");
1214
1215     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1216     if(FAILED(hres))
1217         return hres;
1218
1219     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1220     if(SUCCEEDED(hres))
1221         hres = exprval_to_value(ctx->parser->script, &exprval, ei, &constr);
1222     exprval_release(&exprval);
1223     if(FAILED(hres))
1224         return hres;
1225
1226     if(V_VT(&constr) != VT_DISPATCH) {
1227         FIXME("throw TypeError\n");
1228         VariantClear(&constr);
1229         return E_FAIL;
1230     }
1231
1232     hres = disp_call(V_DISPATCH(&constr), DISPID_VALUE, ctx->parser->script->lcid,
1233                      DISPATCH_CONSTRUCT, &dp, &var, ei, NULL/*FIXME*/);
1234     IDispatch_Release(V_DISPATCH(&constr));
1235     if(FAILED(hres))
1236         return hres;
1237
1238     ret->type = EXPRVAL_VARIANT;
1239     ret->u.var = var;
1240     return S_OK;
1241 }
1242
1243 HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1244 {
1245     call_expression_t *expr = (call_expression_t*)_expr;
1246     VARIANT func, var;
1247     exprval_t exprval;
1248     DISPPARAMS dp;
1249     HRESULT hres;
1250
1251     TRACE("\n");
1252
1253     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1254     if(FAILED(hres))
1255         return hres;
1256
1257     hres = args_to_param(ctx, expr->argument_list, ei, &dp);
1258     if(SUCCEEDED(hres)) {
1259         switch(exprval.type) {
1260         case EXPRVAL_IDREF:
1261             hres = disp_call(exprval.u.idref.disp, exprval.u.idref.id, ctx->parser->script->lcid, DISPATCH_METHOD,
1262                     &dp, flags & EXPR_NOVAL ? NULL : &var, ei, NULL/*FIXME*/);
1263             if(flags & EXPR_NOVAL)
1264                 V_VT(&var) = VT_EMPTY;
1265             break;
1266         default:
1267             FIXME("unimplemented type %d\n", V_VT(&func));
1268             hres = E_NOTIMPL;
1269         }
1270
1271         free_dp(&dp);
1272     }
1273
1274     exprval_release(&exprval);
1275     if(FAILED(hres))
1276         return hres;
1277
1278     TRACE("= %s\n", debugstr_variant(&var));
1279     ret->type = EXPRVAL_VARIANT;
1280     ret->u.var = var;
1281     return S_OK;
1282 }
1283
1284 HRESULT this_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1285 {
1286     TRACE("\n");
1287
1288     ret->type = EXPRVAL_VARIANT;
1289     V_VT(&ret->u.var) = VT_DISPATCH;
1290     V_DISPATCH(&ret->u.var) = ctx->this_obj;
1291     IDispatch_AddRef(ctx->this_obj);
1292     return S_OK;
1293 }
1294
1295 /* ECMA-262 3rd Edition    10.1.4 */
1296 HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1297 {
1298     identifier_expression_t *expr = (identifier_expression_t*)_expr;
1299     BSTR identifier;
1300     HRESULT hres;
1301
1302     TRACE("\n");
1303
1304     identifier = SysAllocString(expr->identifier);
1305     if(!identifier)
1306         return E_OUTOFMEMORY;
1307
1308     hres = identifier_eval(ctx, identifier, flags, ret);
1309
1310     SysFreeString(identifier);
1311     return hres;
1312 }
1313
1314 /* ECMA-262 3rd Edition    7.8 */
1315 HRESULT literal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1316 {
1317     literal_expression_t *expr = (literal_expression_t*)_expr;
1318     VARIANT var;
1319     HRESULT hres;
1320
1321     TRACE("\n");
1322
1323     hres = literal_to_var(expr->literal, &var);
1324     if(FAILED(hres))
1325         return hres;
1326
1327     ret->type = EXPRVAL_VARIANT;
1328     ret->u.var = var;
1329     return S_OK;
1330 }
1331
1332 HRESULT array_literal_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1333 {
1334     FIXME("\n");
1335     return E_NOTIMPL;
1336 }
1337
1338 /* ECMA-262 3rd Edition    11.1.5 */
1339 HRESULT property_value_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1340 {
1341     property_value_expression_t *expr = (property_value_expression_t*)_expr;
1342     VARIANT val, tmp;
1343     DispatchEx *obj;
1344     prop_val_t *iter;
1345     exprval_t exprval;
1346     BSTR name;
1347     HRESULT hres;
1348
1349     TRACE("\n");
1350
1351     hres = create_object(ctx->parser->script, NULL, &obj);
1352     if(FAILED(hres))
1353         return hres;
1354
1355     for(iter = expr->property_list; iter; iter = iter->next) {
1356         hres = literal_to_var(iter->name, &tmp);
1357         if(FAILED(hres))
1358             break;
1359
1360         hres = to_string(ctx->parser->script, &tmp, ei, &name);
1361         VariantClear(&tmp);
1362         if(FAILED(hres))
1363             break;
1364
1365         hres = expr_eval(ctx, iter->value, 0, ei, &exprval);
1366         if(SUCCEEDED(hres)) {
1367             hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1368             exprval_release(&exprval);
1369             if(SUCCEEDED(hres)) {
1370                 hres = jsdisp_propput_name(obj, name, ctx->parser->script->lcid, &val, ei, NULL/*FIXME*/);
1371                 VariantClear(&val);
1372             }
1373         }
1374
1375         SysFreeString(name);
1376         if(FAILED(hres))
1377             break;
1378     }
1379
1380     if(FAILED(hres)) {
1381         jsdisp_release(obj);
1382         return hres;
1383     }
1384
1385     ret->type = EXPRVAL_VARIANT;
1386     V_VT(&ret->u.var) = VT_DISPATCH;
1387     V_DISPATCH(&ret->u.var) = (IDispatch*)_IDispatchEx_(obj);
1388     return S_OK;
1389 }
1390
1391 /* ECMA-262 3rd Edition    11.14 */
1392 HRESULT comma_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1393 {
1394     binary_expression_t *expr = (binary_expression_t*)_expr;
1395     VARIANT lval, rval;
1396     HRESULT hres;
1397
1398     TRACE("\n");
1399
1400     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1401     if(FAILED(hres))
1402         return hres;
1403
1404     VariantClear(&lval);
1405
1406     ret->type = EXPRVAL_VARIANT;
1407     ret->u.var = rval;
1408     return S_OK;
1409 }
1410
1411 /* ECMA-262 3rd Edition    11.11 */
1412 HRESULT logical_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1413 {
1414     binary_expression_t *expr = (binary_expression_t*)_expr;
1415     exprval_t exprval;
1416     VARIANT_BOOL b;
1417     VARIANT val;
1418     HRESULT hres;
1419
1420     TRACE("\n");
1421
1422     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1423     if(FAILED(hres))
1424         return hres;
1425
1426     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1427     exprval_release(&exprval);
1428     if(FAILED(hres))
1429         return hres;
1430
1431     hres = to_boolean(&val, &b);
1432     if(SUCCEEDED(hres) && b) {
1433         ret->type = EXPRVAL_VARIANT;
1434         ret->u.var = val;
1435         return S_OK;
1436     }
1437
1438     VariantClear(&val);
1439     if(FAILED(hres))
1440         return hres;
1441
1442     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1443     if(FAILED(hres))
1444         return hres;
1445
1446     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1447     exprval_release(&exprval);
1448     if(FAILED(hres))
1449         return hres;
1450
1451     ret->type = EXPRVAL_VARIANT;
1452     ret->u.var = val;
1453     return S_OK;
1454 }
1455
1456 /* ECMA-262 3rd Edition    11.11 */
1457 HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1458 {
1459     binary_expression_t *expr = (binary_expression_t*)_expr;
1460     exprval_t exprval;
1461     VARIANT_BOOL b;
1462     VARIANT val;
1463     HRESULT hres;
1464
1465     TRACE("\n");
1466
1467     hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1468     if(FAILED(hres))
1469         return hres;
1470
1471     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1472     exprval_release(&exprval);
1473     if(FAILED(hres))
1474         return hres;
1475
1476     hres = to_boolean(&val, &b);
1477     if(SUCCEEDED(hres) && !b) {
1478         ret->type = EXPRVAL_VARIANT;
1479         ret->u.var = val;
1480         return S_OK;
1481     }
1482
1483     VariantClear(&val);
1484     if(FAILED(hres))
1485         return hres;
1486
1487     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1488     if(FAILED(hres))
1489         return hres;
1490
1491     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1492     exprval_release(&exprval);
1493     if(FAILED(hres))
1494         return hres;
1495
1496     ret->type = EXPRVAL_VARIANT;
1497     ret->u.var = val;
1498     return S_OK;
1499 }
1500
1501 /* ECMA-262 3rd Edition    11.10 */
1502 static HRESULT bitor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1503 {
1504     INT li, ri;
1505     HRESULT hres;
1506
1507     hres = to_int32(ctx->parser->script, lval, ei, &li);
1508     if(FAILED(hres))
1509         return hres;
1510
1511     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1512     if(FAILED(hres))
1513         return hres;
1514
1515     V_VT(retv) = VT_I4;
1516     V_I4(retv) = li|ri;
1517     return S_OK;
1518 }
1519
1520 /* ECMA-262 3rd Edition    11.10 */
1521 HRESULT binary_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1522 {
1523     binary_expression_t *expr = (binary_expression_t*)_expr;
1524
1525     TRACE("\n");
1526
1527     return binary_expr_eval(ctx, expr, bitor_eval, ei, ret);
1528 }
1529
1530 /* ECMA-262 3rd Edition    11.10 */
1531 static HRESULT xor_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1532 {
1533     INT li, ri;
1534     HRESULT hres;
1535
1536     hres = to_int32(ctx->parser->script, lval, ei, &li);
1537     if(FAILED(hres))
1538         return hres;
1539
1540     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1541     if(FAILED(hres))
1542         return hres;
1543
1544     V_VT(retv) = VT_I4;
1545     V_I4(retv) = li^ri;
1546     return S_OK;
1547 }
1548
1549 /* ECMA-262 3rd Edition    11.10 */
1550 HRESULT binary_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1551 {
1552     binary_expression_t *expr = (binary_expression_t*)_expr;
1553
1554     TRACE("\n");
1555
1556     return binary_expr_eval(ctx, expr, xor_eval, ei, ret);
1557 }
1558
1559 /* ECMA-262 3rd Edition    11.10 */
1560 static HRESULT bitand_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1561 {
1562     INT li, ri;
1563     HRESULT hres;
1564
1565     hres = to_int32(ctx->parser->script, lval, ei, &li);
1566     if(FAILED(hres))
1567         return hres;
1568
1569     hres = to_int32(ctx->parser->script, rval, ei, &ri);
1570     if(FAILED(hres))
1571         return hres;
1572
1573     V_VT(retv) = VT_I4;
1574     V_I4(retv) = li&ri;
1575     return S_OK;
1576 }
1577
1578 /* ECMA-262 3rd Edition    11.10 */
1579 HRESULT binary_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1580 {
1581     binary_expression_t *expr = (binary_expression_t*)_expr;
1582
1583     TRACE("\n");
1584
1585     return binary_expr_eval(ctx, expr, bitand_eval, ei, ret);
1586 }
1587
1588 HRESULT instanceof_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1589 {
1590     FIXME("\n");
1591     return E_NOTIMPL;
1592 }
1593
1594 HRESULT in_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1595 {
1596     FIXME("\n");
1597     return E_NOTIMPL;
1598 }
1599
1600 /* ECMA-262 3rd Edition    11.6.1 */
1601 static HRESULT add_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1602 {
1603     VARIANT r, l;
1604     HRESULT hres;
1605
1606     hres = to_primitive(ctx->parser->script, lval, ei, &l);
1607     if(FAILED(hres))
1608         return hres;
1609
1610     hres = to_primitive(ctx->parser->script, rval, ei, &r);
1611     if(FAILED(hres)) {
1612         VariantClear(&l);
1613         return hres;
1614     }
1615
1616     if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
1617         BSTR lstr = NULL, rstr = NULL;
1618
1619         if(V_VT(&l) == VT_BSTR)
1620             lstr = V_BSTR(&l);
1621         else
1622             hres = to_string(ctx->parser->script, &l, ei, &lstr);
1623
1624         if(SUCCEEDED(hres)) {
1625             if(V_VT(&r) == VT_BSTR)
1626                 rstr = V_BSTR(&r);
1627             else
1628                 hres = to_string(ctx->parser->script, &r, ei, &rstr);
1629         }
1630
1631         if(SUCCEEDED(hres)) {
1632             int len1, len2;
1633
1634             len1 = SysStringLen(lstr);
1635             len2 = SysStringLen(rstr);
1636
1637             V_VT(retv) = VT_BSTR;
1638             V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
1639             memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
1640             memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
1641         }
1642
1643         if(lstr && V_VT(&l) != VT_BSTR)
1644             SysFreeString(lstr);
1645         if(rstr && V_VT(&r) != VT_BSTR)
1646             SysFreeString(rstr);
1647     }else {
1648         VARIANT nl, nr;
1649
1650         hres = to_number(ctx->parser->script, &l, ei, &nl);
1651         if(SUCCEEDED(hres)) {
1652             hres = to_number(ctx->parser->script, &r, ei, &nr);
1653             if(SUCCEEDED(hres))
1654                 num_set_val(retv, num_val(&nl) + num_val(&nr));
1655         }
1656     }
1657
1658     VariantClear(&r);
1659     VariantClear(&l);
1660     return hres;
1661 }
1662
1663 /* ECMA-262 3rd Edition    11.6.1 */
1664 HRESULT add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1665 {
1666     binary_expression_t *expr = (binary_expression_t*)_expr;
1667
1668     TRACE("\n");
1669
1670     return binary_expr_eval(ctx, expr, add_eval, ei, ret);
1671 }
1672
1673 /* ECMA-262 3rd Edition    11.6.2 */
1674 static HRESULT sub_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1675 {
1676     VARIANT lnum, rnum;
1677     HRESULT hres;
1678
1679     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1680     if(FAILED(hres))
1681         return hres;
1682
1683     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1684     if(FAILED(hres))
1685         return hres;
1686
1687     num_set_val(retv, num_val(&lnum) - num_val(&rnum));
1688     return S_OK;
1689 }
1690
1691 /* ECMA-262 3rd Edition    11.6.2 */
1692 HRESULT sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1693 {
1694     binary_expression_t *expr = (binary_expression_t*)_expr;
1695
1696     TRACE("\n");
1697
1698     return binary_expr_eval(ctx, expr, sub_eval, ei, ret);
1699 }
1700
1701 /* ECMA-262 3rd Edition    11.5.1 */
1702 static HRESULT mul_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1703 {
1704     VARIANT lnum, rnum;
1705     HRESULT hres;
1706
1707     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1708     if(FAILED(hres))
1709         return hres;
1710
1711     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1712     if(FAILED(hres))
1713         return hres;
1714
1715     num_set_val(retv, num_val(&lnum) * num_val(&rnum));
1716     return S_OK;
1717 }
1718
1719 /* ECMA-262 3rd Edition    11.5.1 */
1720 HRESULT mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1721 {
1722     binary_expression_t *expr = (binary_expression_t*)_expr;
1723
1724     TRACE("\n");
1725
1726     return binary_expr_eval(ctx, expr, mul_eval, ei, ret);
1727 }
1728
1729 /* ECMA-262 3rd Edition    11.5.2 */
1730 static HRESULT div_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
1731 {
1732     VARIANT lnum, rnum;
1733     HRESULT hres;
1734
1735     hres = to_number(ctx->parser->script, lval, ei, &lnum);
1736     if(FAILED(hres))
1737         return hres;
1738
1739     hres = to_number(ctx->parser->script, rval, ei, &rnum);
1740     if(FAILED(hres))
1741         return hres;
1742
1743     num_set_val(retv, num_val(&lnum) / num_val(&rnum));
1744     return S_OK;
1745 }
1746
1747 /* ECMA-262 3rd Edition    11.5.2 */
1748 HRESULT div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1749 {
1750     binary_expression_t *expr = (binary_expression_t*)_expr;
1751
1752     TRACE("\n");
1753
1754     return binary_expr_eval(ctx, expr, div_eval, ei, ret);
1755 }
1756
1757 HRESULT mod_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1758 {
1759     FIXME("\n");
1760     return E_NOTIMPL;
1761 }
1762
1763 HRESULT delete_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1764 {
1765     FIXME("\n");
1766     return E_NOTIMPL;
1767 }
1768
1769 HRESULT void_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1770 {
1771     FIXME("\n");
1772     return E_NOTIMPL;
1773 }
1774
1775 HRESULT typeof_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1776 {
1777     unary_expression_t *expr = (unary_expression_t*)_expr;
1778     const WCHAR *str;
1779     exprval_t exprval;
1780     VARIANT val;
1781     HRESULT hres;
1782
1783     static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
1784     static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
1785     static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
1786     static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
1787     static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
1788     static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
1789
1790     TRACE("\n");
1791
1792     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1793     if(FAILED(hres))
1794         return hres;
1795
1796     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1797     exprval_release(&exprval);
1798     if(FAILED(hres))
1799         return hres;
1800
1801     switch(V_VT(&val)) {
1802     case VT_EMPTY:
1803         str = undefinedW;
1804         break;
1805     case VT_NULL:
1806         str = objectW;
1807         break;
1808     case VT_BOOL:
1809         str = booleanW;
1810         break;
1811     case VT_I4:
1812     case VT_R8:
1813         str = numberW;
1814         break;
1815     case VT_BSTR:
1816         str = stringW;
1817         break;
1818     case VT_DISPATCH: {
1819         DispatchEx *dispex;
1820
1821         dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(&val));
1822         if(dispex) {
1823             str = dispex->builtin_info->class == JSCLASS_FUNCTION ? functionW : objectW;
1824             IDispatchEx_Release(_IDispatchEx_(dispex));
1825         }else {
1826             str = objectW;
1827         }
1828         break;
1829     }
1830     default:
1831         FIXME("unhandled vt %d\n", V_VT(&val));
1832         hres = E_NOTIMPL;
1833     }
1834
1835     VariantClear(&val);
1836     if(FAILED(hres))
1837         return hres;
1838
1839     ret->type = EXPRVAL_VARIANT;
1840     V_VT(&ret->u.var) = VT_BSTR;
1841     V_BSTR(&ret->u.var) = SysAllocString(str);
1842     return S_OK;
1843 }
1844
1845 /* ECMA-262 3rd Edition    11.4.7 */
1846 HRESULT minus_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1847 {
1848     unary_expression_t *expr = (unary_expression_t*)_expr;
1849     exprval_t exprval;
1850     VARIANT val, num;
1851     HRESULT hres;
1852
1853     TRACE("\n");
1854
1855     hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1856     if(FAILED(hres))
1857         return hres;
1858
1859     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
1860     exprval_release(&exprval);
1861     if(FAILED(hres))
1862         return hres;
1863
1864     hres = to_number(ctx->parser->script, &val, ei, &num);
1865     VariantClear(&val);
1866     if(FAILED(hres))
1867         return hres;
1868
1869     ret->type = EXPRVAL_VARIANT;
1870     num_set_val(&ret->u.var, -num_val(&num));
1871     return S_OK;
1872 }
1873
1874 HRESULT plus_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1875 {
1876     FIXME("\n");
1877     return E_NOTIMPL;
1878 }
1879
1880 /* ECMA-262 3rd Edition    11.3.1 */
1881 HRESULT post_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1882 {
1883     unary_expression_t *expr = (unary_expression_t*)_expr;
1884     VARIANT val, num;
1885     exprval_t exprval;
1886     HRESULT hres;
1887
1888     TRACE("\n");
1889
1890     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1891     if(FAILED(hres))
1892         return hres;
1893
1894     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1895     if(SUCCEEDED(hres)) {
1896         hres = to_number(ctx->parser->script, &val, ei, &num);
1897         VariantClear(&val);
1898     }
1899
1900     if(SUCCEEDED(hres)) {
1901         VARIANT inc;
1902         num_set_val(&inc, num_val(&num)+1.0);
1903         hres = put_value(ctx->parser->script, &exprval, &inc, ei);
1904     }
1905
1906     exprval_release(&exprval);
1907     if(FAILED(hres))
1908         return hres;
1909
1910     ret->type = EXPRVAL_VARIANT;
1911     ret->u.var = num;
1912     return S_OK;
1913 }
1914
1915 /* ECMA-262 3rd Edition    11.3.2 */
1916 HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1917 {
1918     unary_expression_t *expr = (unary_expression_t*)_expr;
1919     VARIANT val, num;
1920     exprval_t exprval;
1921     HRESULT hres;
1922
1923     TRACE("\n");
1924
1925     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1926     if(FAILED(hres))
1927         return hres;
1928
1929     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1930     if(SUCCEEDED(hres)) {
1931         hres = to_number(ctx->parser->script, &val, ei, &num);
1932         VariantClear(&val);
1933     }
1934
1935     if(SUCCEEDED(hres)) {
1936         VARIANT dec;
1937         num_set_val(&dec, num_val(&num)-1.0);
1938         hres = put_value(ctx->parser->script, &exprval, &dec, ei);
1939     }
1940
1941     exprval_release(&exprval);
1942     if(FAILED(hres))
1943         return hres;
1944
1945     ret->type = EXPRVAL_VARIANT;
1946     ret->u.var = num;
1947     return S_OK;
1948 }
1949
1950 /* ECMA-262 3rd Edition    11.4.4 */
1951 HRESULT pre_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1952 {
1953     unary_expression_t *expr = (unary_expression_t*)_expr;
1954     VARIANT val, num;
1955     exprval_t exprval;
1956     HRESULT hres;
1957
1958     TRACE("\n");
1959
1960     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1961     if(FAILED(hres))
1962         return hres;
1963
1964     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1965     if(SUCCEEDED(hres)) {
1966         hres = to_number(ctx->parser->script, &val, ei, &num);
1967         VariantClear(&val);
1968     }
1969
1970     if(SUCCEEDED(hres)) {
1971         num_set_val(&val, num_val(&num)+1.0);
1972         hres = put_value(ctx->parser->script, &exprval, &val, ei);
1973     }
1974
1975     exprval_release(&exprval);
1976     if(FAILED(hres))
1977         return hres;
1978
1979     ret->type = EXPRVAL_VARIANT;
1980     ret->u.var = val;
1981     return S_OK;
1982 }
1983
1984 /* ECMA-262 3rd Edition    11.4.5 */
1985 HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1986 {
1987     unary_expression_t *expr = (unary_expression_t*)_expr;
1988     VARIANT val, num;
1989     exprval_t exprval;
1990     HRESULT hres;
1991
1992     TRACE("\n");
1993
1994     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
1995     if(FAILED(hres))
1996         return hres;
1997
1998     hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
1999     if(SUCCEEDED(hres)) {
2000         hres = to_number(ctx->parser->script, &val, ei, &num);
2001         VariantClear(&val);
2002     }
2003
2004     if(SUCCEEDED(hres)) {
2005         num_set_val(&val, num_val(&num)-1.0);
2006         hres = put_value(ctx->parser->script, &exprval, &val, ei);
2007     }
2008
2009     exprval_release(&exprval);
2010     if(FAILED(hres))
2011         return hres;
2012
2013     ret->type = EXPRVAL_VARIANT;
2014     ret->u.var = val;
2015     return S_OK;
2016 }
2017
2018 /* ECMA-262 3rd Edition    11.9.3 */
2019 static HRESULT equal_values(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2020 {
2021     if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
2022        return equal2_values(lval, rval, ret);
2023
2024     /* FIXME: NULL disps should be handled in more general way */
2025     if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
2026         VARIANT v;
2027         V_VT(&v) = VT_NULL;
2028         return equal_values(ctx, &v, rval, ei, ret);
2029     }
2030
2031     if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
2032         VARIANT v;
2033         V_VT(&v) = VT_NULL;
2034         return equal_values(ctx, lval, &v, ei, ret);
2035     }
2036
2037     if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
2038        (V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
2039         *ret = TRUE;
2040         return S_OK;
2041     }
2042
2043     if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
2044         VARIANT v;
2045         HRESULT hres;
2046
2047         hres = to_number(ctx->parser->script, lval, ei, &v);
2048         if(FAILED(hres))
2049             return hres;
2050
2051         return equal_values(ctx, &v, rval, ei, ret);
2052     }
2053
2054     if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
2055         VARIANT v;
2056         HRESULT hres;
2057
2058         hres = to_number(ctx->parser->script, rval, ei, &v);
2059         if(FAILED(hres))
2060             return hres;
2061
2062         return equal_values(ctx, lval, &v, ei, ret);
2063     }
2064
2065     if(V_VT(rval) == VT_BOOL) {
2066         VARIANT v;
2067
2068         V_VT(&v) = VT_I4;
2069         V_I4(&v) = V_BOOL(rval) ? 1 : 0;
2070         return equal_values(ctx, lval, &v, ei, ret);
2071     }
2072
2073     if(V_VT(lval) == VT_BOOL) {
2074         VARIANT v;
2075
2076         V_VT(&v) = VT_I4;
2077         V_I4(&v) = V_BOOL(lval) ? 1 : 0;
2078         return equal_values(ctx, &v, rval, ei, ret);
2079     }
2080
2081
2082     if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
2083         VARIANT v;
2084         HRESULT hres;
2085
2086         hres = to_primitive(ctx->parser->script, rval, ei, &v);
2087         if(FAILED(hres))
2088             return hres;
2089
2090         hres = equal_values(ctx, lval, &v, ei, ret);
2091
2092         VariantClear(&v);
2093         return hres;
2094     }
2095
2096
2097     if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
2098         VARIANT v;
2099         HRESULT hres;
2100
2101         hres = to_primitive(ctx->parser->script, lval, ei, &v);
2102         if(FAILED(hres))
2103             return hres;
2104
2105         hres = equal_values(ctx, &v, rval, ei, ret);
2106
2107         VariantClear(&v);
2108         return hres;
2109     }
2110
2111
2112     *ret = FALSE;
2113     return S_OK;
2114 }
2115
2116 /* ECMA-262 3rd Edition    11.9.1 */
2117 HRESULT equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2118 {
2119     binary_expression_t *expr = (binary_expression_t*)_expr;
2120     VARIANT rval, lval;
2121     BOOL b;
2122     HRESULT hres;
2123
2124     TRACE("\n");
2125
2126     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2127     if(FAILED(hres))
2128         return hres;
2129
2130     hres = equal_values(ctx, &rval, &lval, ei, &b);
2131     if(FAILED(hres))
2132         return hres;
2133
2134     return return_bool(ret, b);
2135 }
2136
2137 /* ECMA-262 3rd Edition    11.9.4 */
2138 HRESULT equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2139 {
2140     binary_expression_t *expr = (binary_expression_t*)_expr;
2141     VARIANT rval, lval;
2142     BOOL b;
2143     HRESULT hres;
2144
2145     TRACE("\n");
2146
2147     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2148     if(FAILED(hres))
2149         return hres;
2150
2151     hres = equal2_values(&rval, &lval, &b);
2152     if(FAILED(hres))
2153         return hres;
2154
2155     return return_bool(ret, b);
2156 }
2157
2158 /* ECMA-262 3rd Edition    11.9.2 */
2159 HRESULT not_equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2160 {
2161     binary_expression_t *expr = (binary_expression_t*)_expr;
2162     VARIANT rval, lval;
2163     BOOL b;
2164     HRESULT hres;
2165
2166     TRACE("\n");
2167
2168     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2169     if(FAILED(hres))
2170         return hres;
2171
2172     hres = equal_values(ctx, &lval, &rval, ei, &b);
2173     if(FAILED(hres))
2174         return hres;
2175
2176     return return_bool(ret, !b);
2177 }
2178
2179 /* ECMA-262 3rd Edition    11.9.5 */
2180 HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2181 {
2182     binary_expression_t *expr = (binary_expression_t*)_expr;
2183     VARIANT rval, lval;
2184     BOOL b;
2185     HRESULT hres;
2186
2187     TRACE("\n");
2188
2189     hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
2190     if(FAILED(hres))
2191         return hres;
2192
2193     hres = equal2_values(&rval, &lval, &b);
2194     if(FAILED(hres))
2195         return hres;
2196
2197     return return_bool(ret, !b);
2198 }
2199
2200 /* ECMA-262 3rd Edition    11.8.5 */
2201 static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2202 {
2203     VARIANT l, r, ln, rn;
2204     HRESULT hres;
2205
2206     hres = to_primitive(ctx->parser->script, lval, ei, &l);
2207     if(FAILED(hres))
2208         return hres;
2209
2210     hres = to_primitive(ctx->parser->script, rval, ei, &r);
2211     if(FAILED(hres)) {
2212         VariantClear(&l);
2213         return hres;
2214     }
2215
2216     if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
2217         *ret = strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0;
2218         SysFreeString(V_BSTR(&l));
2219         SysFreeString(V_BSTR(&r));
2220         return S_OK;
2221     }
2222
2223     hres = to_number(ctx->parser->script, &l, ei, &ln);
2224     VariantClear(&l);
2225     if(SUCCEEDED(hres))
2226         hres = to_number(ctx->parser->script, &r, ei, &rn);
2227     VariantClear(&r);
2228     if(FAILED(hres))
2229         return hres;
2230
2231     if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4)
2232         *ret = V_I4(&ln) < V_I4(&rn);
2233     else
2234         *ret = num_val(&ln) < num_val(&rn);
2235
2236     return S_OK;
2237 }
2238
2239 /* ECMA-262 3rd Edition    11.8.1 */
2240 HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2241 {
2242     binary_expression_t *expr = (binary_expression_t*)_expr;
2243     VARIANT rval, lval;
2244     BOOL b;
2245     HRESULT hres;
2246
2247     TRACE("\n");
2248
2249     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2250     if(FAILED(hres))
2251         return hres;
2252
2253     hres = less_eval(ctx, &lval, &rval, ei, &b);
2254     VariantClear(&lval);
2255     VariantClear(&rval);
2256     if(FAILED(hres))
2257         return hres;
2258
2259     return return_bool(ret, b);
2260 }
2261
2262 /* ECMA-262 3rd Edition    11.8.3 */
2263 HRESULT lesseq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2264 {
2265     binary_expression_t *expr = (binary_expression_t*)_expr;
2266     VARIANT rval, lval;
2267     BOOL b;
2268     HRESULT hres;
2269
2270     TRACE("\n");
2271
2272     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2273     if(FAILED(hres))
2274         return hres;
2275
2276     hres = less_eval(ctx, &rval, &lval, ei, &b);
2277     VariantClear(&lval);
2278     VariantClear(&rval);
2279     if(FAILED(hres))
2280         return hres;
2281
2282     return return_bool(ret, !b);
2283 }
2284
2285 /* ECMA-262 3rd Edition    11.8.2 */
2286 HRESULT greater_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2287 {
2288     binary_expression_t *expr = (binary_expression_t*)_expr;
2289     VARIANT rval, lval;
2290     BOOL b;
2291     HRESULT hres;
2292
2293     TRACE("\n");
2294
2295     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2296     if(FAILED(hres))
2297         return hres;
2298
2299     hres = less_eval(ctx, &rval, &lval, ei, &b);
2300     VariantClear(&lval);
2301     VariantClear(&rval);
2302     if(FAILED(hres))
2303         return hres;
2304
2305     return return_bool(ret, b);
2306 }
2307
2308 /* ECMA-262 3rd Edition    11.8.4 */
2309 HRESULT greatereq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2310 {
2311     binary_expression_t *expr = (binary_expression_t*)_expr;
2312     VARIANT rval, lval;
2313     BOOL b;
2314     HRESULT hres;
2315
2316     TRACE("\n");
2317
2318     hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
2319     if(FAILED(hres))
2320         return hres;
2321
2322     hres = less_eval(ctx, &lval, &rval, ei, &b);
2323     VariantClear(&lval);
2324     VariantClear(&rval);
2325     if(FAILED(hres))
2326         return hres;
2327
2328     return return_bool(ret, !b);
2329 }
2330
2331 /* ECMA-262 3rd Edition    11.4.8 */
2332 HRESULT binary_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2333 {
2334     unary_expression_t *expr = (unary_expression_t*)_expr;
2335     exprval_t exprval;
2336     VARIANT val;
2337     INT i;
2338     HRESULT hres;
2339
2340     TRACE("\n");
2341
2342     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2343     if(FAILED(hres))
2344         return hres;
2345
2346     hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
2347     exprval_release(&exprval);
2348     if(FAILED(hres))
2349         return hres;
2350
2351     hres = to_int32(ctx->parser->script, &val, ei, &i);
2352     if(FAILED(hres))
2353         return hres;
2354
2355     ret->type = EXPRVAL_VARIANT;
2356     V_VT(&ret->u.var) = VT_I4;
2357     V_I4(&ret->u.var) = ~i;
2358     return S_OK;
2359 }
2360
2361 /* ECMA-262 3rd Edition    11.4.9 */
2362 HRESULT logical_negation_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2363 {
2364     unary_expression_t *expr = (unary_expression_t*)_expr;
2365     exprval_t exprval;
2366     VARIANT_BOOL b;
2367     HRESULT hres;
2368
2369     TRACE("\n");
2370
2371     hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
2372     if(FAILED(hres))
2373         return hres;
2374
2375     hres = exprval_to_boolean(ctx->parser->script, &exprval, ei, &b);
2376     exprval_release(&exprval);
2377     if(FAILED(hres))
2378         return hres;
2379
2380     return return_bool(ret, !b);
2381 }
2382
2383 HRESULT left_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2384 {
2385     FIXME("\n");
2386     return E_NOTIMPL;
2387 }
2388
2389 HRESULT right_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2390 {
2391     FIXME("\n");
2392     return E_NOTIMPL;
2393 }
2394
2395 HRESULT right2_shift_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2396 {
2397     FIXME("\n");
2398     return E_NOTIMPL;
2399 }
2400
2401 /* ECMA-262 3rd Edition    11.13.1 */
2402 HRESULT assign_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2403 {
2404     binary_expression_t *expr = (binary_expression_t*)_expr;
2405     exprval_t exprval, exprvalr;
2406     VARIANT rval;
2407     HRESULT hres;
2408
2409     TRACE("\n");
2410
2411     hres = expr_eval(ctx, expr->expression1, EXPR_NEWREF, ei, &exprval);
2412     if(FAILED(hres))
2413         return hres;
2414
2415     hres = expr_eval(ctx, expr->expression2, 0, ei, &exprvalr);
2416     if(SUCCEEDED(hres)) {
2417         hres = exprval_to_value(ctx->parser->script, &exprvalr, ei, &rval);
2418         exprval_release(&exprvalr);
2419     }
2420
2421     if(SUCCEEDED(hres))
2422         hres = put_value(ctx->parser->script, &exprval, &rval, ei);
2423
2424     exprval_release(&exprval);
2425     if(FAILED(hres)) {
2426         VariantClear(&rval);
2427         return hres;
2428     }
2429
2430     ret->type = EXPRVAL_VARIANT;
2431     ret->u.var = rval;
2432     return S_OK;
2433 }
2434
2435 HRESULT assign_lshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2436 {
2437     FIXME("\n");
2438     return E_NOTIMPL;
2439 }
2440
2441 HRESULT assign_rshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2442 {
2443     FIXME("\n");
2444     return E_NOTIMPL;
2445 }
2446
2447 HRESULT assign_rrshift_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2448 {
2449     FIXME("\n");
2450     return E_NOTIMPL;
2451 }
2452
2453 /* ECMA-262 3rd Edition    11.13.2 */
2454 HRESULT assign_add_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2455 {
2456     binary_expression_t *expr = (binary_expression_t*)_expr;
2457
2458     TRACE("\n");
2459
2460     return assign_oper_eval(ctx, expr->expression1, expr->expression2, add_eval, ei, ret);
2461 }
2462
2463 /* ECMA-262 3rd Edition    11.13.2 */
2464 HRESULT assign_sub_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2465 {
2466     binary_expression_t *expr = (binary_expression_t*)_expr;
2467
2468     TRACE("\n");
2469
2470     return assign_oper_eval(ctx, expr->expression1, expr->expression2, sub_eval, ei, ret);
2471 }
2472
2473 /* ECMA-262 3rd Edition    11.13.2 */
2474 HRESULT assign_mul_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2475 {
2476     binary_expression_t *expr = (binary_expression_t*)_expr;
2477
2478     TRACE("\n");
2479
2480     return assign_oper_eval(ctx, expr->expression1, expr->expression2, mul_eval, ei, ret);
2481 }
2482
2483 /* ECMA-262 3rd Edition    11.13.2 */
2484 HRESULT assign_div_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2485 {
2486     binary_expression_t *expr = (binary_expression_t*)_expr;
2487
2488     TRACE("\n");
2489
2490     return assign_oper_eval(ctx, expr->expression1, expr->expression2, div_eval, ei, ret);
2491 }
2492
2493 HRESULT assign_mod_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2494 {
2495     FIXME("\n");
2496     return E_NOTIMPL;
2497 }
2498
2499 /* ECMA-262 3rd Edition    11.13.2 */
2500 HRESULT assign_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2501 {
2502     binary_expression_t *expr = (binary_expression_t*)_expr;
2503
2504     TRACE("\n");
2505
2506     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitand_eval, ei, ret);
2507 }
2508
2509 /* ECMA-262 3rd Edition    11.13.2 */
2510 HRESULT assign_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2511 {
2512     binary_expression_t *expr = (binary_expression_t*)_expr;
2513
2514     TRACE("\n");
2515
2516     return assign_oper_eval(ctx, expr->expression1, expr->expression2, bitor_eval, ei, ret);
2517 }
2518
2519 /* ECMA-262 3rd Edition    11.13.2 */
2520 HRESULT assign_xor_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2521 {
2522     binary_expression_t *expr = (binary_expression_t*)_expr;
2523
2524     TRACE("\n");
2525
2526     return assign_oper_eval(ctx, expr->expression1, expr->expression2, xor_eval, ei, ret);
2527 }