dll/win32/jscript/array.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 <math.h>
  20
  21 #include "jscript.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  26
  27 typedef struct {
  28     DispatchEx dispex;
  29
  30     DWORD length;
  31 } ArrayInstance;
  32
  33 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  34 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  35 static const WCHAR joinW[] = {'j','o','i','n',0};
  36 static const WCHAR popW[] = {'p','o','p',0};
  37 static const WCHAR pushW[] = {'p','u','s','h',0};
  38 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  39 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  40 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  41 static const WCHAR sortW[] = {'s','o','r','t',0};
  42 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  43 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  44 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  45 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  46
  47 static const WCHAR default_separatorW[] = {',',0};
  48
  49 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  50 {
  51     return (ArrayInstance*)vdisp->u.jsdisp;
  52 }
  53
  54 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  55 {
  56     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  57 }
  58
  59 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsexcept_t *ei, DispatchEx **jsthis, DWORD *ret)
  60 {
  61     ArrayInstance *array;
  62     VARIANT var;
  63     HRESULT hres;
  64
  65     array = array_this(vdisp);
  66     if(array) {
  67         *jsthis = &array->dispex;
  68         *ret = array->length;
  69         return S_OK;
  70     }
  71
  72     if(!is_jsdisp(vdisp))
  73         return throw_type_error(ctx, ei, IDS_JSCRIPT_EXPECTED, NULL);
  74
  75     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &var, ei, NULL/*FIXME*/);
  76     if(FAILED(hres))
  77         return hres;
  78
  79     hres = to_uint32(ctx, &var, ei, ret);
  80     VariantClear(&var);
  81     if(FAILED(hres))
  82         return hres;
  83
  84     *jsthis = vdisp->u.jsdisp;
  85     return S_OK;
  86 }
  87
  88 static HRESULT set_length(DispatchEx *obj, jsexcept_t *ei, DWORD length)
  89 {
  90     VARIANT var;
  91
  92     if(is_class(obj, JSCLASS_ARRAY)) {
  93         ((ArrayInstance*)obj)->length = length;
  94         return S_OK;
  95     }
  96
  97     V_VT(&var) = VT_I4;
  98     V_I4(&var) = length;
  99     return jsdisp_propput_name(obj, lengthW, &var, ei, NULL/*FIXME*/);
 100 }
 101
 102 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 103 {
 104     if(!idx) {
 105         *ptr = '0';
 106         return ptr;
 107     }
 108
 109     while(idx) {
 110         *ptr-- = '0' + (idx%10);
 111         idx /= 10;
 112     }
 113
 114     return ptr+1;
 115 }
 116
 117 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 118         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 119 {
 120     ArrayInstance *This = array_from_vdisp(jsthis);
 121
 122     TRACE("%p %d\n", This, This->length);
 123
 124     switch(flags) {
 125     case DISPATCH_PROPERTYGET:
 126         V_VT(retv) = VT_I4;
 127         V_I4(retv) = This->length;
 128         break;
 129     case DISPATCH_PROPERTYPUT: {
 130         VARIANT num;
 131         DOUBLE len = -1;
 132         DWORD i;
 133         HRESULT hres;
 134
 135         hres = to_number(ctx, get_arg(dp, 0), ei, &num);
 136         if(V_VT(&num) == VT_I4)
 137             len = V_I4(&num);
 138         else
 139             len = floor(V_R8(&num));
 140
 141         if(len!=(DWORD)len)
 142             return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
 143
 144         for(i=len; i<This->length; i++) {
 145             hres = jsdisp_delete_idx(&This->dispex, i);
 146             if(FAILED(hres))
 147                 return hres;
 148         }
 149
 150         This->length = len;
 151         break;
 152     }
 153     default:
 154         FIXME("unimplemented flags %x\n", flags);
 155         return E_NOTIMPL;
 156     }
 157
 158     return S_OK;
 159 }
 160
 161 static HRESULT concat_array(DispatchEx *array, ArrayInstance *obj, DWORD *len,
 162         jsexcept_t *ei, IServiceProvider *caller)
 163 {
 164     VARIANT var;
 165     DWORD i;
 166     HRESULT hres;
 167
 168     for(i=0; i < obj->length; i++) {
 169         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei, caller);
 170         if(hres == DISP_E_UNKNOWNNAME)
 171             continue;
 172         if(FAILED(hres))
 173             return hres;
 174
 175         hres = jsdisp_propput_idx(array, *len+i, &var, ei, caller);
 176         VariantClear(&var);
 177         if(FAILED(hres))
 178             return hres;
 179     }
 180
 181     *len += obj->length;
 182     return S_OK;
 183 }
 184
 185 static HRESULT concat_obj(DispatchEx *array, IDispatch *obj, DWORD *len, jsexcept_t *ei, IServiceProvider *caller)
 186 {
 187     DispatchEx *jsobj;
 188     VARIANT var;
 189     HRESULT hres;
 190
 191     jsobj = iface_to_jsdisp((IUnknown*)obj);
 192     if(jsobj) {
 193         if(is_class(jsobj, JSCLASS_ARRAY)) {
 194             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei, caller);
 195             jsdisp_release(jsobj);
 196             return hres;
 197         }
 198         jsdisp_release(jsobj);
 199     }
 200
 201     V_VT(&var) = VT_DISPATCH;
 202     V_DISPATCH(&var) = obj;
 203     return jsdisp_propput_idx(array, (*len)++, &var, ei, caller);
 204 }
 205
 206 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 207         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 208 {
 209     DispatchEx *ret;
 210     DWORD len = 0;
 211     HRESULT hres;
 212
 213     TRACE("\n");
 214
 215     hres = create_array(ctx, 0, &ret);
 216     if(FAILED(hres))
 217         return hres;
 218
 219     hres = concat_obj(ret, jsthis->u.disp, &len, ei, caller);
 220     if(SUCCEEDED(hres)) {
 221         VARIANT *arg;
 222         DWORD i;
 223
 224         for(i=0; i < arg_cnt(dp); i++) {
 225             arg = get_arg(dp, i);
 226             if(V_VT(arg) == VT_DISPATCH)
 227                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei, caller);
 228             else
 229                 hres = jsdisp_propput_idx(ret, len++, arg, ei, caller);
 230             if(FAILED(hres))
 231                 break;
 232         }
 233     }
 234
 235     if(FAILED(hres))
 236         return hres;
 237
 238     if(retv) {
 239         V_VT(retv) = VT_DISPATCH;
 240         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret);
 241     }else {
 242         jsdisp_release(ret);
 243     }
 244     return S_OK;
 245 }
 246
 247 static HRESULT array_join(script_ctx_t *ctx, DispatchEx *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 248         jsexcept_t *ei, IServiceProvider *caller)
 249 {
 250     BSTR *str_tab, ret = NULL;
 251     VARIANT var;
 252     DWORD i;
 253     HRESULT hres = E_FAIL;
 254
 255     if(!length) {
 256         if(retv) {
 257             V_VT(retv) = VT_BSTR;
 258             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 259             if(!V_BSTR(retv))
 260                 return E_OUTOFMEMORY;
 261         }
 262         return S_OK;
 263     }
 264
 265     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 266     if(!str_tab)
 267         return E_OUTOFMEMORY;
 268
 269     for(i=0; i < length; i++) {
 270         hres = jsdisp_get_idx(array, i, &var, ei, caller);
 271         if(hres == DISP_E_UNKNOWNNAME) {
 272             hres = S_OK;
 273             continue;
 274         } else if(FAILED(hres))
 275             break;
 276
 277         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 278             hres = to_string(ctx, &var, ei, str_tab+i);
 279         VariantClear(&var);
 280         if(FAILED(hres))
 281             break;
 282     }
 283
 284     if(SUCCEEDED(hres)) {
 285         DWORD seplen = 0, len = 0;
 286         WCHAR *ptr;
 287
 288         seplen = strlenW(sep);
 289
 290         if(str_tab[0])
 291             len = SysStringLen(str_tab[0]);
 292         for(i=1; i < length; i++)
 293             len += seplen + SysStringLen(str_tab[i]);
 294
 295         ret = SysAllocStringLen(NULL, len);
 296         if(ret) {
 297             DWORD tmplen = 0;
 298
 299             if(str_tab[0]) {
 300                 tmplen = SysStringLen(str_tab[0]);
 301                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 302             }
 303
 304             ptr = ret + tmplen;
 305             for(i=1; i < length; i++) {
 306                 if(seplen) {
 307                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 308                     ptr += seplen;
 309                 }
 310
 311                 if(str_tab[i]) {
 312                     tmplen = SysStringLen(str_tab[i]);
 313                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 314                     ptr += tmplen;
 315                 }
 316             }
 317             *ptr=0;
 318         }else {
 319             hres = E_OUTOFMEMORY;
 320         }
 321     }
 322
 323     for(i=0; i < length; i++)
 324         SysFreeString(str_tab[i]);
 325     heap_free(str_tab);
 326     if(FAILED(hres))
 327         return hres;
 328
 329     TRACE("= %s\n", debugstr_w(ret));
 330
 331     if(retv) {
 332         if(!ret) {
 333             ret = SysAllocStringLen(NULL, 0);
 334             if(!ret)
 335                 return E_OUTOFMEMORY;
 336         }
 337
 338         V_VT(retv) = VT_BSTR;
 339         V_BSTR(retv) = ret;
 340     }else {
 341         SysFreeString(ret);
 342     }
 343
 344     return S_OK;
 345 }
 346
 347 /* ECMA-262 3rd Edition    15.4.4.5 */
 348 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 349         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 350 {
 351     DispatchEx *jsthis;
 352     DWORD length;
 353     HRESULT hres;
 354
 355     TRACE("\n");
 356
 357     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 358     if(FAILED(hres))
 359         return hres;
 360
 361     if(arg_cnt(dp)) {
 362         BSTR sep;
 363
 364         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 365         if(FAILED(hres))
 366             return hres;
 367
 368         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 369
 370         SysFreeString(sep);
 371     }else {
 372         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 373     }
 374
 375     return hres;
 376 }
 377
 378 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 379         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 380 {
 381     DispatchEx *jsthis;
 382     VARIANT val;
 383     DWORD length;
 384     HRESULT hres;
 385
 386     TRACE("\n");
 387
 388     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 389     if(FAILED(hres))
 390         return hres;
 391
 392     if(!length) {
 393         hres = set_length(jsthis, ei, 0);
 394         if(FAILED(hres))
 395             return hres;
 396
 397         if(retv)
 398             V_VT(retv) = VT_EMPTY;
 399         return S_OK;
 400     }
 401
 402     length--;
 403     hres = jsdisp_get_idx(jsthis, length, &val, ei, caller);
 404     if(SUCCEEDED(hres)) {
 405         hres = jsdisp_delete_idx(jsthis, length);
 406     } else if(hres == DISP_E_UNKNOWNNAME) {
 407         V_VT(&val) = VT_EMPTY;
 408         hres = S_OK;
 409     } else
 410         return hres;
 411
 412     if(SUCCEEDED(hres))
 413         hres = set_length(jsthis, ei, length);
 414
 415     if(FAILED(hres)) {
 416         VariantClear(&val);
 417         return hres;
 418     }
 419
 420     if(retv)
 421         *retv = val;
 422     else
 423         VariantClear(&val);
 424
 425     return S_OK;
 426 }
 427
 428 /* ECMA-262 3rd Edition    15.4.4.7 */
 429 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 430         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 431 {
 432     DispatchEx *jsthis;
 433     DWORD length = 0;
 434     int i, n;
 435     HRESULT hres;
 436
 437     TRACE("\n");
 438
 439     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 440     if(FAILED(hres))
 441         return hres;
 442
 443     n = arg_cnt(dp);
 444     for(i=0; i < n; i++) {
 445         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei, sp);
 446         if(FAILED(hres))
 447             return hres;
 448     }
 449
 450     hres = set_length(jsthis, ei, length+n);
 451     if(FAILED(hres))
 452         return hres;
 453
 454     if(retv) {
 455         V_VT(retv) = VT_I4;
 456         V_I4(retv) = length+n;
 457     }
 458     return S_OK;
 459 }
 460
 461 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 462         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 463 {
 464     DispatchEx *jsthis;
 465     DWORD length, k, l;
 466     VARIANT v1, v2;
 467     HRESULT hres1, hres2;
 468
 469     TRACE("\n");
 470
 471     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 472     if(FAILED(hres1))
 473         return hres1;
 474
 475     for(k=0; k<length/2; k++) {
 476         l = length-k-1;
 477
 478         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei, sp);
 479         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 480             return hres1;
 481
 482         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei, sp);
 483         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 484             VariantClear(&v1);
 485             return hres2;
 486         }
 487
 488         if(hres1 == DISP_E_UNKNOWNNAME)
 489             hres1 = jsdisp_delete_idx(jsthis, l);
 490         else
 491             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei, sp);
 492
 493         if(FAILED(hres1)) {
 494             VariantClear(&v1);
 495             VariantClear(&v2);
 496             return hres1;
 497         }
 498
 499         if(hres2 == DISP_E_UNKNOWNNAME)
 500             hres2 = jsdisp_delete_idx(jsthis, k);
 501         else
 502             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei, sp);
 503
 504         if(FAILED(hres2)) {
 505             VariantClear(&v2);
 506             return hres2;
 507         }
 508     }
 509
 510     if(retv) {
 511         V_VT(retv) = VT_DISPATCH;
 512         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 513         IDispatch_AddRef(V_DISPATCH(retv));
 514     }
 515
 516     return S_OK;
 517 }
 518
 519 /* ECMA-262 3rd Edition    15.4.4.9 */
 520 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 521         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 522 {
 523     DispatchEx *jsthis;
 524     DWORD length = 0, i;
 525     VARIANT v, ret;
 526     HRESULT hres;
 527
 528     TRACE("\n");
 529
 530     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 531     if(FAILED(hres))
 532         return hres;
 533
 534     if(!length) {
 535         hres = set_length(jsthis, ei, 0);
 536         if(FAILED(hres))
 537             return hres;
 538     }
 539
 540     if(!length) {
 541         if(retv)
 542             V_VT(retv) = VT_EMPTY;
 543         return S_OK;
 544     }
 545
 546     hres = jsdisp_get_idx(jsthis, 0, &ret, ei, caller);
 547     if(hres == DISP_E_UNKNOWNNAME) {
 548         V_VT(&ret) = VT_EMPTY;
 549         hres = S_OK;
 550     }
 551
 552     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 553         hres = jsdisp_get_idx(jsthis, i, &v, ei, caller);
 554         if(hres == DISP_E_UNKNOWNNAME)
 555             hres = jsdisp_delete_idx(jsthis, i-1);
 556         else if(SUCCEEDED(hres))
 557             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei, caller);
 558     }
 559
 560     if(SUCCEEDED(hres)) {
 561         hres = jsdisp_delete_idx(jsthis, length-1);
 562         if(SUCCEEDED(hres))
 563             hres = set_length(jsthis, ei, length-1);
 564     }
 565
 566     if(SUCCEEDED(hres) && retv)
 567         *retv = ret;
 568     else
 569         VariantClear(&ret);
 570     return hres;
 571 }
 572
 573 /* ECMA-262 3rd Edition    15.4.4.10 */
 574 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 575         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 576 {
 577     DispatchEx *arr, *jsthis;
 578     VARIANT v;
 579     DOUBLE range;
 580     DWORD length, start, end, idx;
 581     HRESULT hres;
 582
 583     TRACE("\n");
 584
 585     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 586     if(FAILED(hres))
 587         return hres;
 588
 589     if(arg_cnt(dp)) {
 590         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 591         if(FAILED(hres))
 592             return hres;
 593
 594         if(V_VT(&v) == VT_I4)
 595             range = V_I4(&v);
 596         else
 597             range = floor(V_R8(&v));
 598
 599         if(-range>length || isnan(range)) start = 0;
 600         else if(range < 0) start = range+length;
 601         else if(range <= length) start = range;
 602         else start = length;
 603     }
 604     else start = 0;
 605
 606     if(arg_cnt(dp)>1) {
 607         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 608         if(FAILED(hres))
 609             return hres;
 610
 611         if(V_VT(&v) == VT_I4)
 612             range = V_I4(&v);
 613         else
 614             range = floor(V_R8(&v));
 615
 616         if(-range>length) end = 0;
 617         else if(range < 0) end = range+length;
 618         else if(range <= length) end = range;
 619         else end = length;
 620     }
 621     else end = length;
 622
 623     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 624     if(FAILED(hres))
 625         return hres;
 626
 627     for(idx=start; idx<end; idx++) {
 628         hres = jsdisp_get_idx(jsthis, idx, &v, ei, sp);
 629         if(hres == DISP_E_UNKNOWNNAME)
 630             continue;
 631
 632         if(SUCCEEDED(hres)) {
 633             hres = jsdisp_propput_idx(arr, idx-start, &v, ei, sp);
 634             VariantClear(&v);
 635         }
 636
 637         if(FAILED(hres)) {
 638             jsdisp_release(arr);
 639             return hres;
 640         }
 641     }
 642
 643     if(retv) {
 644         V_VT(retv) = VT_DISPATCH;
 645         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(arr);
 646     }
 647     else
 648         jsdisp_release(arr);
 649
 650     return S_OK;
 651 }
 652
 653 static HRESULT sort_cmp(script_ctx_t *ctx, DispatchEx *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei,
 654         IServiceProvider *caller, INT *cmp)
 655 {
 656     HRESULT hres;
 657
 658     if(cmp_func) {
 659         VARIANTARG args[2];
 660         DISPPARAMS dp = {args, NULL, 2, 0};
 661         VARIANT tmp;
 662         VARIANT res;
 663
 664         args[0] = *v2;
 665         args[1] = *v1;
 666
 667         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei, caller);
 668         if(FAILED(hres))
 669             return hres;
 670
 671         hres = to_number(ctx, &res, ei, &tmp);
 672         VariantClear(&res);
 673         if(FAILED(hres))
 674             return hres;
 675
 676         if(V_VT(&tmp) == VT_I4)
 677             *cmp = V_I4(&tmp);
 678         else
 679             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 680     }else if(V_VT(v1) == VT_EMPTY) {
 681         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 682     }else if(V_VT(v2) == VT_EMPTY) {
 683         *cmp = -1;
 684     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 685         DOUBLE d = num_val(v1)-num_val(v2);
 686         if(d > 0.0)
 687             *cmp = 1;
 688         else
 689             *cmp = d < -0.0 ? -1 : 0;
 690     }else {
 691         BSTR x, y;
 692
 693         hres = to_string(ctx, v1, ei, &x);
 694         if(FAILED(hres))
 695             return hres;
 696
 697         hres = to_string(ctx, v2, ei, &y);
 698         if(SUCCEEDED(hres)) {
 699             *cmp = strcmpW(x, y);
 700             SysFreeString(y);
 701         }
 702         SysFreeString(x);
 703         if(FAILED(hres))
 704             return hres;
 705     }
 706
 707     return S_OK;
 708 }
 709
 710 /* ECMA-262 3rd Edition    15.4.4.11 */
 711 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 712         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 713 {
 714     DispatchEx *jsthis, *cmp_func = NULL;
 715     VARIANT *vtab, **sorttab = NULL;
 716     DWORD length;
 717     DWORD i;
 718     HRESULT hres = S_OK;
 719
 720     TRACE("\n");
 721
 722     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 723     if(FAILED(hres))
 724         return hres;
 725
 726     if(arg_cnt(dp) > 1) {
 727         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 728         return E_FAIL;
 729     }
 730
 731     if(arg_cnt(dp) == 1) {
 732         VARIANT *arg = get_arg(dp, 0);
 733
 734         if(V_VT(arg) != VT_DISPATCH) {
 735             WARN("arg is not dispatch\n");
 736             return E_FAIL;
 737         }
 738
 739
 740         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 741         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 742             WARN("cmp_func is not a function\n");
 743             if(cmp_func)
 744                 jsdisp_release(cmp_func);
 745             return E_FAIL;
 746         }
 747     }
 748
 749     if(!length) {
 750         if(cmp_func)
 751             jsdisp_release(cmp_func);
 752         if(retv) {
 753             V_VT(retv) = VT_DISPATCH;
 754             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 755             IDispatch_AddRef(V_DISPATCH(retv));
 756         }
 757         return S_OK;
 758     }
 759
 760     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 761     if(vtab) {
 762         for(i=0; i<length; i++) {
 763             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei, caller);
 764             if(hres == DISP_E_UNKNOWNNAME) {
 765                 V_VT(vtab+i) = VT_EMPTY;
 766                 hres = S_OK;
 767             } else if(FAILED(hres)) {
 768                 WARN("Could not get elem %d: %08x\n", i, hres);
 769                 break;
 770             }
 771         }
 772     }else {
 773         hres = E_OUTOFMEMORY;
 774     }
 775
 776     if(SUCCEEDED(hres)) {
 777         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 778         if(!sorttab)
 779             hres = E_OUTOFMEMORY;
 780     }
 781
 782     /* merge-sort */
 783     if(SUCCEEDED(hres)) {
 784         VARIANT *tmpv, **tmpbuf;
 785         INT cmp;
 786
 787         tmpbuf = sorttab + length;
 788         for(i=0; i < length; i++)
 789             sorttab[i] = vtab+i;
 790
 791         for(i=0; i < length/2; i++) {
 792             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, caller, &cmp);
 793             if(FAILED(hres))
 794                 break;
 795
 796             if(cmp < 0) {
 797                 tmpv = sorttab[2*i];
 798                 sorttab[2*i] = sorttab[2*i+1];
 799                 sorttab[2*i+1] = tmpv;
 800             }
 801         }
 802
 803         if(SUCCEEDED(hres)) {
 804             DWORD k, a, b, bend;
 805
 806             for(k=2; k < length; k *= 2) {
 807                 for(i=0; i+k < length; i += 2*k) {
 808                     a = b = 0;
 809                     if(i+2*k <= length)
 810                         bend = k;
 811                     else
 812                         bend = length - (i+k);
 813
 814                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 815
 816                     while(a < k && b < bend) {
 817                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, caller, &cmp);
 818                         if(FAILED(hres))
 819                             break;
 820
 821                         if(cmp < 0) {
 822                             sorttab[i+a+b] = tmpbuf[a];
 823                             a++;
 824                         }else {
 825                             sorttab[i+a+b] = sorttab[i+k+b];
 826                             b++;
 827                         }
 828                     }
 829
 830                     if(FAILED(hres))
 831                         break;
 832
 833                     if(a < k)
 834                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 835                 }
 836
 837                 if(FAILED(hres))
 838                     break;
 839             }
 840         }
 841
 842         for(i=0; SUCCEEDED(hres) && i < length; i++)
 843             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei, caller);
 844     }
 845
 846     if(vtab) {
 847         for(i=0; i < length; i++)
 848             VariantClear(vtab+i);
 849         heap_free(vtab);
 850     }
 851     heap_free(sorttab);
 852     if(cmp_func)
 853         jsdisp_release(cmp_func);
 854
 855     if(FAILED(hres))
 856         return hres;
 857
 858     if(retv) {
 859         V_VT(retv) = VT_DISPATCH;
 860         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 861         IDispatch_AddRef(V_DISPATCH(retv));
 862     }
 863
 864     return S_OK;
 865 }
 866
 867 /* ECMA-262 3rd Edition    15.4.4.12 */
 868 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 869         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 870 {
 871     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 872     DispatchEx *ret_array = NULL, *jsthis;
 873     VARIANT v;
 874     HRESULT hres = S_OK;
 875
 876     TRACE("\n");
 877
 878     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 879     if(FAILED(hres))
 880         return hres;
 881
 882     argc = arg_cnt(dp);
 883     if(argc >= 1) {
 884         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 885         if(FAILED(hres))
 886             return hres;
 887
 888         if(V_VT(&v) == VT_I4) {
 889             if(V_I4(&v) >= 0)
 890                 start = min(V_I4(&v), length);
 891             else
 892                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 893         }else {
 894             start = V_R8(&v) < 0.0 ? 0 : length;
 895         }
 896     }
 897
 898     if(argc >= 2) {
 899         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 900         if(FAILED(hres))
 901             return hres;
 902
 903         if(V_VT(&v) == VT_I4) {
 904             if(V_I4(&v) > 0)
 905                 delete_cnt = min(V_I4(&v), length-start);
 906         }else if(V_R8(&v) > 0.0) {
 907             delete_cnt = length-start;
 908         }
 909
 910         add_args = argc-2;
 911     }
 912
 913     if(retv) {
 914         hres = create_array(ctx, 0, &ret_array);
 915         if(FAILED(hres))
 916             return hres;
 917
 918         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 919             hres = jsdisp_get_idx(jsthis, start+i, &v, ei, caller);
 920             if(hres == DISP_E_UNKNOWNNAME)
 921                 hres = S_OK;
 922             else if(SUCCEEDED(hres))
 923                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 924         }
 925
 926         if(SUCCEEDED(hres)) {
 927             V_VT(&v) = VT_I4;
 928             V_I4(&v) = delete_cnt;
 929
 930             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei, caller);
 931         }
 932     }
 933
 934     if(add_args < delete_cnt) {
 935         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 936             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei, caller);
 937             if(hres == DISP_E_UNKNOWNNAME)
 938                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 939             else if(SUCCEEDED(hres))
 940                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 941         }
 942
 943         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 944             hres = jsdisp_delete_idx(jsthis, i-1);
 945     }else if(add_args > delete_cnt) {
 946         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 947             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 948             if(hres == DISP_E_UNKNOWNNAME)
 949                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 950             else if(SUCCEEDED(hres))
 951                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 952         }
 953     }
 954
 955     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 956         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 957
 958     if(SUCCEEDED(hres)) {
 959         V_VT(&v) = VT_I4;
 960         V_I4(&v) = length-delete_cnt+add_args;
 961         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei, caller);
 962     }
 963
 964     if(FAILED(hres)) {
 965         if(ret_array)
 966             jsdisp_release(ret_array);
 967         return hres;
 968     }
 969
 970     if(retv) {
 971         V_VT(retv) = VT_DISPATCH;
 972         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret_array);
 973     }
 974     return S_OK;
 975 }
 976
 977 /* ECMA-262 3rd Edition    15.4.4.2 */
 978 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 979         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 980 {
 981     ArrayInstance *array;
 982
 983     TRACE("\n");
 984
 985     array = array_this(jsthis);
 986     if(!array)
 987         return throw_type_error(ctx, ei, IDS_ARRAY_EXPECTED, NULL);
 988
 989     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 990 }
 991
 992 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 993         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 994 {
 995     FIXME("\n");
 996     return E_NOTIMPL;
 997 }
 998
 999 /* ECMA-262 3rd Edition    15.4.4.13 */
1000 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1001         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1002 {
1003     DispatchEx *jsthis;
1004     WCHAR buf[14], *buf_end, *str;
1005     DWORD argc, i, length;
1006     VARIANT var;
1007     DISPID id;
1008     HRESULT hres;
1009
1010     TRACE("\n");
1011
1012     hres = get_length(ctx, vthis, ei, &jsthis, &length);
1013     if(FAILED(hres))
1014         return hres;
1015
1016     argc = arg_cnt(dp);
1017     if(argc) {
1018         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1019         *buf_end-- = 0;
1020         i = length;
1021
1022         while(i--) {
1023             str = idx_to_str(i, buf_end);
1024
1025             hres = jsdisp_get_id(jsthis, str, 0, &id);
1026             if(SUCCEEDED(hres)) {
1027                 hres = jsdisp_propget(jsthis, id, &var, ei, caller);
1028                 if(FAILED(hres))
1029                     return hres;
1030
1031                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
1032                 VariantClear(&var);
1033             }else if(hres == DISP_E_UNKNOWNNAME) {
1034                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1035             }
1036         }
1037
1038         if(FAILED(hres))
1039             return hres;
1040     }
1041
1042     for(i=0; i<argc; i++) {
1043         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1044         if(FAILED(hres))
1045             return hres;
1046     }
1047
1048     if(argc) {
1049         length += argc;
1050         hres = set_length(jsthis, ei, length);
1051         if(FAILED(hres))
1052             return hres;
1053     }
1054
1055     if(retv) {
1056         if(ctx->version < 2) {
1057             V_VT(retv) = VT_EMPTY;
1058         }else {
1059             V_VT(retv) = VT_I4;
1060             V_I4(retv) = length;
1061         }
1062     }
1063     return S_OK;
1064 }
1065
1066 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1067         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1068 {
1069     TRACE("\n");
1070
1071     switch(flags) {
1072     case INVOKE_FUNC:
1073         return throw_type_error(ctx, ei, IDS_NOT_FUNC, NULL);
1074     case INVOKE_PROPERTYGET:
1075         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1076     default:
1077         FIXME("unimplemented flags %x\n", flags);
1078         return E_NOTIMPL;
1079     }
1080
1081     return S_OK;
1082 }
1083
1084 static void Array_destructor(DispatchEx *dispex)
1085 {
1086     heap_free(dispex);
1087 }
1088
1089 static void Array_on_put(DispatchEx *dispex, const WCHAR *name)
1090 {
1091     ArrayInstance *array = (ArrayInstance*)dispex;
1092     const WCHAR *ptr = name;
1093     DWORD id = 0;
1094
1095     if(!isdigitW(*ptr))
1096         return;
1097
1098     while(*ptr && isdigitW(*ptr)) {
1099         id = id*10 + (*ptr-'0');
1100         ptr++;
1101     }
1102
1103     if(*ptr)
1104         return;
1105
1106     if(id >= array->length)
1107         array->length = id+1;
1108 }
1109
1110 static const builtin_prop_t Array_props[] = {
1111     {concatW,                Array_concat,               PROPF_METHOD|1},
1112     {joinW,                  Array_join,                 PROPF_METHOD|1},
1113     {lengthW,                Array_length,               0},
1114     {popW,                   Array_pop,                  PROPF_METHOD},
1115     {pushW,                  Array_push,                 PROPF_METHOD|1},
1116     {reverseW,               Array_reverse,              PROPF_METHOD},
1117     {shiftW,                 Array_shift,                PROPF_METHOD},
1118     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1119     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1120     {spliceW,                Array_splice,               PROPF_METHOD|2},
1121     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1122     {toStringW,              Array_toString,             PROPF_METHOD},
1123     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1124 };
1125
1126 static const builtin_info_t Array_info = {
1127     JSCLASS_ARRAY,
1128     {NULL, Array_value, 0},
1129     sizeof(Array_props)/sizeof(*Array_props),
1130     Array_props,
1131     Array_destructor,
1132     Array_on_put
1133 };
1134
1135 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1136         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1137 {
1138     DispatchEx *obj;
1139     VARIANT *arg_var;
1140     DWORD i;
1141     HRESULT hres;
1142
1143     TRACE("\n");
1144
1145     switch(flags) {
1146     case DISPATCH_METHOD:
1147     case DISPATCH_CONSTRUCT: {
1148         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1149             if(V_I4(arg_var) < 0)
1150                 return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
1151
1152             hres = create_array(ctx, V_I4(arg_var), &obj);
1153             if(FAILED(hres))
1154                 return hres;
1155
1156             V_VT(retv) = VT_DISPATCH;
1157             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1158             return S_OK;
1159         }
1160
1161         hres = create_array(ctx, arg_cnt(dp), &obj);
1162         if(FAILED(hres))
1163             return hres;
1164
1165         for(i=0; i < arg_cnt(dp); i++) {
1166             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei, caller);
1167             if(FAILED(hres))
1168                 break;
1169         }
1170         if(FAILED(hres)) {
1171             jsdisp_release(obj);
1172             return hres;
1173         }
1174
1175         V_VT(retv) = VT_DISPATCH;
1176         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1177         break;
1178     }
1179     default:
1180         FIXME("unimplemented flags: %x\n", flags);
1181         return E_NOTIMPL;
1182     }
1183
1184     return S_OK;
1185 }
1186
1187 static HRESULT alloc_array(script_ctx_t *ctx, DispatchEx *object_prototype, ArrayInstance **ret)
1188 {
1189     ArrayInstance *array;
1190     HRESULT hres;
1191
1192     array = heap_alloc_zero(sizeof(ArrayInstance));
1193     if(!array)
1194         return E_OUTOFMEMORY;
1195
1196     if(object_prototype)
1197         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1198     else
1199         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1200
1201     if(FAILED(hres)) {
1202         heap_free(array);
1203         return hres;
1204     }
1205
1206     *ret = array;
1207     return S_OK;
1208 }
1209
1210 HRESULT create_array_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
1211 {
1212     ArrayInstance *array;
1213     HRESULT hres;
1214
1215     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1216
1217     hres = alloc_array(ctx, object_prototype, &array);
1218     if(FAILED(hres))
1219         return hres;
1220
1221     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1222
1223     jsdisp_release(&array->dispex);
1224     return hres;
1225 }
1226
1227 HRESULT create_array(script_ctx_t *ctx, DWORD length, DispatchEx **ret)
1228 {
1229     ArrayInstance *array;
1230     HRESULT hres;
1231
1232     hres = alloc_array(ctx, NULL, &array);
1233     if(FAILED(hres))
1234         return hres;
1235
1236     array->length = length;
1237
1238     *ret = &array->dispex;
1239     return S_OK;
1240 }