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 "jscript.h"
  20
  21 typedef struct {
  22     jsdisp_t dispex;
  23
  24     DWORD length;
  25 } ArrayInstance;
  26
  27 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  28 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  29 static const WCHAR joinW[] = {'j','o','i','n',0};
  30 static const WCHAR popW[] = {'p','o','p',0};
  31 static const WCHAR pushW[] = {'p','u','s','h',0};
  32 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  33 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  34 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  35 static const WCHAR sortW[] = {'s','o','r','t',0};
  36 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  37 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  38 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  39 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  40
  41 static const WCHAR default_separatorW[] = {',',0};
  42
  43 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  44 {
  45     return (ArrayInstance*)vdisp->u.jsdisp;
  46 }
  47
  48 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  49 {
  50     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  51 }
  52
  53 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsdisp_t **jsthis, DWORD *ret)
  54 {
  55     ArrayInstance *array;
  56     jsval_t val;
  57     HRESULT hres;
  58
  59     array = array_this(vdisp);
  60     if(array) {
  61         *jsthis = &array->dispex;
  62         *ret = array->length;
  63         return S_OK;
  64     }
  65
  66     if(!is_jsdisp(vdisp))
  67         return throw_type_error(ctx, JS_E_JSCRIPT_EXPECTED, NULL);
  68
  69     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &val);
  70     if(FAILED(hres))
  71         return hres;
  72
  73     hres = to_uint32(ctx, val, ret);
  74     jsval_release(val);
  75     if(FAILED(hres))
  76         return hres;
  77
  78     *jsthis = vdisp->u.jsdisp;
  79     return S_OK;
  80 }
  81
  82 static HRESULT set_length(jsdisp_t *obj, DWORD length)
  83 {
  84     if(is_class(obj, JSCLASS_ARRAY)) {
  85         ((ArrayInstance*)obj)->length = length;
  86         return S_OK;
  87     }
  88
  89     return jsdisp_propput_name(obj, lengthW, jsval_number(length));
  90 }
  91
  92 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
  93 {
  94     if(!idx) {
  95         *ptr = '0';
  96         return ptr;
  97     }
  98
  99     while(idx) {
 100         *ptr-- = '0' + (idx%10);
 101         idx /= 10;
 102     }
 103
 104     return ptr+1;
 105 }
 106
 107 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 108         jsval_t *r)
 109 {
 110     ArrayInstance *This = array_from_vdisp(jsthis);
 111
 112     TRACE("%p %d\n", This, This->length);
 113
 114     switch(flags) {
 115     case DISPATCH_PROPERTYGET:
 116         *r = jsval_number(This->length);
 117         break;
 118     case DISPATCH_PROPERTYPUT: {
 119         DOUBLE len = -1;
 120         DWORD i;
 121         HRESULT hres;
 122
 123         hres = to_number(ctx, argv[0], &len);
 124         if(FAILED(hres))
 125             return hres;
 126
 127         len = floor(len);
 128         if(len!=(DWORD)len)
 129             return throw_range_error(ctx, JS_E_INVALID_LENGTH, NULL);
 130
 131         for(i=len; i<This->length; i++) {
 132             hres = jsdisp_delete_idx(&This->dispex, i);
 133             if(FAILED(hres))
 134                 return hres;
 135         }
 136
 137         This->length = len;
 138         break;
 139     }
 140     default:
 141         FIXME("unimplemented flags %x\n", flags);
 142         return E_NOTIMPL;
 143     }
 144
 145     return S_OK;
 146 }
 147
 148 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len)
 149 {
 150     jsval_t val;
 151     DWORD i;
 152     HRESULT hres;
 153
 154     for(i=0; i < obj->length; i++) {
 155         hres = jsdisp_get_idx(&obj->dispex, i, &val);
 156         if(hres == DISP_E_UNKNOWNNAME)
 157             continue;
 158         if(FAILED(hres))
 159             return hres;
 160
 161         hres = jsdisp_propput_idx(array, *len+i, val);
 162         jsval_release(val);
 163         if(FAILED(hres))
 164             return hres;
 165     }
 166
 167     *len += obj->length;
 168     return S_OK;
 169 }
 170
 171 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len)
 172 {
 173     jsdisp_t *jsobj;
 174     HRESULT hres;
 175
 176     jsobj = iface_to_jsdisp((IUnknown*)obj);
 177     if(jsobj) {
 178         if(is_class(jsobj, JSCLASS_ARRAY)) {
 179             hres = concat_array(array, (ArrayInstance*)jsobj, len);
 180             jsdisp_release(jsobj);
 181             return hres;
 182         }
 183         jsdisp_release(jsobj);
 184     }
 185
 186     return jsdisp_propput_idx(array, (*len)++, jsval_disp(obj));
 187 }
 188
 189 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 190         jsval_t *r)
 191 {
 192     jsdisp_t *ret;
 193     DWORD len = 0;
 194     HRESULT hres;
 195
 196     TRACE("\n");
 197
 198     hres = create_array(ctx, 0, &ret);
 199     if(FAILED(hres))
 200         return hres;
 201
 202     hres = concat_obj(ret, jsthis->u.disp, &len);
 203     if(SUCCEEDED(hres)) {
 204         DWORD i;
 205
 206         for(i=0; i < argc; i++) {
 207             if(is_object_instance(argv[i]))
 208                 hres = concat_obj(ret, get_object(argv[i]), &len);
 209             else
 210                 hres = jsdisp_propput_idx(ret, len++, argv[i]);
 211             if(FAILED(hres))
 212                 break;
 213         }
 214     }
 215
 216     if(FAILED(hres))
 217         return hres;
 218
 219     if(r)
 220         *r = jsval_obj(ret);
 221     else
 222         jsdisp_release(ret);
 223     return S_OK;
 224 }
 225
 226 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, jsval_t *r)
 227 {
 228     jsstr_t **str_tab, *ret;
 229     jsval_t val;
 230     DWORD i;
 231     HRESULT hres = E_FAIL;
 232
 233     if(!length) {
 234         if(r)
 235             *r = jsval_string(jsstr_empty());
 236         return S_OK;
 237     }
 238
 239     str_tab = heap_alloc_zero(length * sizeof(*str_tab));
 240     if(!str_tab)
 241         return E_OUTOFMEMORY;
 242
 243     for(i=0; i < length; i++) {
 244         hres = jsdisp_get_idx(array, i, &val);
 245         if(hres == DISP_E_UNKNOWNNAME) {
 246             hres = S_OK;
 247             continue;
 248         } else if(FAILED(hres))
 249             break;
 250
 251         if(!is_undefined(val) && !is_null(val)) {
 252             hres = to_string(ctx, val, str_tab+i);
 253             jsval_release(val);
 254             if(FAILED(hres))
 255                 break;
 256         }
 257     }
 258
 259     if(SUCCEEDED(hres)) {
 260         DWORD seplen = 0, len = 0;
 261
 262         seplen = strlenW(sep);
 263
 264         if(str_tab[0])
 265             len = jsstr_length(str_tab[0]);
 266         for(i=1; i < length; i++) {
 267             len += seplen;
 268             if(str_tab[i])
 269                 len += jsstr_length(str_tab[i]);
 270             if(len > JSSTR_MAX_LENGTH) {
 271                 hres = E_OUTOFMEMORY;
 272                 break;
 273             }
 274         }
 275
 276         if(SUCCEEDED(hres)) {
 277             WCHAR *ptr = NULL;
 278
 279             ptr = jsstr_alloc_buf(len, &ret);
 280             if(ptr) {
 281                 if(str_tab[0])
 282                     ptr += jsstr_flush(str_tab[0], ptr);
 283
 284                 for(i=1; i < length; i++) {
 285                     if(seplen) {
 286                         memcpy(ptr, sep, seplen*sizeof(WCHAR));
 287                         ptr += seplen;
 288                     }
 289
 290                     if(str_tab[i])
 291                         ptr += jsstr_flush(str_tab[i], ptr);
 292                 }
 293             }else {
 294                 hres = E_OUTOFMEMORY;
 295             }
 296         }
 297     }
 298
 299     for(i=0; i < length; i++) {
 300         if(str_tab[i])
 301             jsstr_release(str_tab[i]);
 302     }
 303     heap_free(str_tab);
 304     if(FAILED(hres))
 305         return hres;
 306
 307     TRACE("= %s\n", debugstr_jsstr(ret));
 308
 309     if(r)
 310         *r = jsval_string(ret);
 311     else
 312         jsstr_release(ret);
 313     return S_OK;
 314 }
 315
 316 /* ECMA-262 3rd Edition    15.4.4.5 */
 317 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 318         jsval_t *r)
 319 {
 320     jsdisp_t *jsthis;
 321     DWORD length;
 322     HRESULT hres;
 323
 324     TRACE("\n");
 325
 326     hres = get_length(ctx, vthis, &jsthis, &length);
 327     if(FAILED(hres))
 328         return hres;
 329
 330     if(argc) {
 331         const WCHAR *sep;
 332         jsstr_t *sep_str;
 333
 334         hres = to_flat_string(ctx, argv[0], &sep_str, &sep);
 335         if(FAILED(hres))
 336             return hres;
 337
 338         hres = array_join(ctx, jsthis, length, sep, r);
 339
 340         jsstr_release(sep_str);
 341     }else {
 342         hres = array_join(ctx, jsthis, length, default_separatorW, r);
 343     }
 344
 345     return hres;
 346 }
 347
 348 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 349         jsval_t *r)
 350 {
 351     jsdisp_t *jsthis;
 352     jsval_t val;
 353     DWORD length;
 354     HRESULT hres;
 355
 356     TRACE("\n");
 357
 358     hres = get_length(ctx, vthis, &jsthis, &length);
 359     if(FAILED(hres))
 360         return hres;
 361
 362     if(!length) {
 363         hres = set_length(jsthis, 0);
 364         if(FAILED(hres))
 365             return hres;
 366
 367         if(r)
 368             *r = jsval_undefined();
 369         return S_OK;
 370     }
 371
 372     length--;
 373     hres = jsdisp_get_idx(jsthis, length, &val);
 374     if(SUCCEEDED(hres))
 375         hres = jsdisp_delete_idx(jsthis, length);
 376     else if(hres == DISP_E_UNKNOWNNAME)
 377         val = jsval_undefined();
 378     else
 379         return hres;
 380
 381     if(SUCCEEDED(hres))
 382         hres = set_length(jsthis, length);
 383
 384     if(FAILED(hres)) {
 385         jsval_release(val);
 386         return hres;
 387     }
 388
 389     if(r)
 390         *r = val;
 391     else
 392         jsval_release(val);
 393     return hres;
 394 }
 395
 396 /* ECMA-262 3rd Edition    15.4.4.7 */
 397 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 398         jsval_t *r)
 399 {
 400     jsdisp_t *jsthis;
 401     DWORD length = 0;
 402     unsigned i;
 403     HRESULT hres;
 404
 405     TRACE("\n");
 406
 407     hres = get_length(ctx, vthis, &jsthis, &length);
 408     if(FAILED(hres))
 409         return hres;
 410
 411     for(i=0; i < argc; i++) {
 412         hres = jsdisp_propput_idx(jsthis, length+i, argv[i]);
 413         if(FAILED(hres))
 414             return hres;
 415     }
 416
 417     hres = set_length(jsthis, length+argc);
 418     if(FAILED(hres))
 419         return hres;
 420
 421     if(r)
 422         *r = jsval_number(length+argc);
 423     return S_OK;
 424 }
 425
 426 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 427         jsval_t *r)
 428 {
 429     jsdisp_t *jsthis;
 430     DWORD length, k, l;
 431     jsval_t v1, v2;
 432     HRESULT hres1, hres2;
 433
 434     TRACE("\n");
 435
 436     hres1 = get_length(ctx, vthis, &jsthis, &length);
 437     if(FAILED(hres1))
 438         return hres1;
 439
 440     for(k=0; k<length/2; k++) {
 441         l = length-k-1;
 442
 443         hres1 = jsdisp_get_idx(jsthis, k, &v1);
 444         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 445             return hres1;
 446
 447         hres2 = jsdisp_get_idx(jsthis, l, &v2);
 448         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 449             jsval_release(v1);
 450             return hres2;
 451         }
 452
 453         if(hres1 == DISP_E_UNKNOWNNAME)
 454             hres1 = jsdisp_delete_idx(jsthis, l);
 455         else
 456             hres1 = jsdisp_propput_idx(jsthis, l, v1);
 457
 458         if(FAILED(hres1)) {
 459             jsval_release(v1);
 460             jsval_release(v2);
 461             return hres1;
 462         }
 463
 464         if(hres2 == DISP_E_UNKNOWNNAME)
 465             hres2 = jsdisp_delete_idx(jsthis, k);
 466         else
 467             hres2 = jsdisp_propput_idx(jsthis, k, v2);
 468
 469         if(FAILED(hres2)) {
 470             jsval_release(v2);
 471             return hres2;
 472         }
 473     }
 474
 475     if(r)
 476         *r = jsval_obj(jsdisp_addref(jsthis));
 477     return S_OK;
 478 }
 479
 480 /* ECMA-262 3rd Edition    15.4.4.9 */
 481 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 482         jsval_t *r)
 483 {
 484     jsdisp_t *jsthis;
 485     DWORD length = 0, i;
 486     jsval_t v, ret;
 487     HRESULT hres;
 488
 489     TRACE("\n");
 490
 491     hres = get_length(ctx, vthis, &jsthis, &length);
 492     if(FAILED(hres))
 493         return hres;
 494
 495     if(!length) {
 496         hres = set_length(jsthis, 0);
 497         if(FAILED(hres))
 498             return hres;
 499     }
 500
 501     if(!length) {
 502         if(r)
 503             *r = jsval_undefined();
 504         return S_OK;
 505     }
 506
 507     hres = jsdisp_get_idx(jsthis, 0, &ret);
 508     if(hres == DISP_E_UNKNOWNNAME) {
 509         ret = jsval_undefined();
 510         hres = S_OK;
 511     }
 512
 513     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 514         hres = jsdisp_get_idx(jsthis, i, &v);
 515         if(hres == DISP_E_UNKNOWNNAME)
 516             hres = jsdisp_delete_idx(jsthis, i-1);
 517         else if(SUCCEEDED(hres))
 518             hres = jsdisp_propput_idx(jsthis, i-1, v);
 519     }
 520
 521     if(SUCCEEDED(hres)) {
 522         hres = jsdisp_delete_idx(jsthis, length-1);
 523         if(SUCCEEDED(hres))
 524             hres = set_length(jsthis, length-1);
 525     }
 526
 527     if(FAILED(hres))
 528         return hres;
 529
 530     if(r)
 531         *r = ret;
 532     else
 533         jsval_release(ret);
 534     return hres;
 535 }
 536
 537 /* ECMA-262 3rd Edition    15.4.4.10 */
 538 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
 539 {
 540     jsdisp_t *arr, *jsthis;
 541     DOUBLE range;
 542     DWORD length, start, end, idx;
 543     HRESULT hres;
 544
 545     TRACE("\n");
 546
 547     hres = get_length(ctx, vthis, &jsthis, &length);
 548     if(FAILED(hres))
 549         return hres;
 550
 551     if(argc) {
 552         hres = to_number(ctx, argv[0], &range);
 553         if(FAILED(hres))
 554             return hres;
 555
 556         range = floor(range);
 557         if(-range>length || isnan(range)) start = 0;
 558         else if(range < 0) start = range+length;
 559         else if(range <= length) start = range;
 560         else start = length;
 561     }
 562     else start = 0;
 563
 564     if(argc > 1) {
 565         hres = to_number(ctx, argv[1], &range);
 566         if(FAILED(hres))
 567             return hres;
 568
 569         range = floor(range);
 570         if(-range>length) end = 0;
 571         else if(range < 0) end = range+length;
 572         else if(range <= length) end = range;
 573         else end = length;
 574     }
 575     else end = length;
 576
 577     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 578     if(FAILED(hres))
 579         return hres;
 580
 581     for(idx=start; idx<end; idx++) {
 582         jsval_t v;
 583
 584         hres = jsdisp_get_idx(jsthis, idx, &v);
 585         if(hres == DISP_E_UNKNOWNNAME)
 586             continue;
 587
 588         if(SUCCEEDED(hres)) {
 589             hres = jsdisp_propput_idx(arr, idx-start, v);
 590             jsval_release(v);
 591         }
 592
 593         if(FAILED(hres)) {
 594             jsdisp_release(arr);
 595             return hres;
 596         }
 597     }
 598
 599     if(r)
 600         *r = jsval_obj(arr);
 601     else
 602         jsdisp_release(arr);
 603
 604     return S_OK;
 605 }
 606
 607 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, jsval_t v1, jsval_t v2, INT *cmp)
 608 {
 609     HRESULT hres;
 610
 611     if(cmp_func) {
 612         jsval_t args[2];
 613         jsval_t res;
 614         double n;
 615
 616         args[0] = v1;
 617         args[1] = v2;
 618
 619         hres = jsdisp_call_value(cmp_func, NULL, DISPATCH_METHOD, 2, args, &res);
 620         if(FAILED(hres))
 621             return hres;
 622
 623         hres = to_number(ctx, res, &n);
 624         jsval_release(res);
 625         if(FAILED(hres))
 626             return hres;
 627
 628         if(n == 0)
 629             *cmp = 0;
 630         *cmp = n > 0.0 ? 1 : -1;
 631     }else if(is_undefined(v1)) {
 632         *cmp = is_undefined(v2) ? 0 : 1;
 633     }else if(is_undefined(v2)) {
 634         *cmp = -1;
 635     }else if(is_number(v1) && is_number(v2)) {
 636         double d = get_number(v1)-get_number(v2);
 637         if(d > 0.0)
 638             *cmp = 1;
 639         else
 640             *cmp = d < -0.0 ? -1 : 0;
 641     }else {
 642         jsstr_t *x, *y;
 643
 644         hres = to_string(ctx, v1, &x);
 645         if(FAILED(hres))
 646             return hres;
 647
 648         hres = to_string(ctx, v2, &y);
 649         if(SUCCEEDED(hres)) {
 650             *cmp = jsstr_cmp(x, y);
 651             jsstr_release(y);
 652         }
 653         jsstr_release(x);
 654         if(FAILED(hres))
 655             return hres;
 656     }
 657
 658     return S_OK;
 659 }
 660
 661 /* ECMA-262 3rd Edition    15.4.4.11 */
 662 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 663         jsval_t *r)
 664 {
 665     jsdisp_t *jsthis, *cmp_func = NULL;
 666     jsval_t *vtab, **sorttab = NULL;
 667     DWORD length;
 668     DWORD i;
 669     HRESULT hres = S_OK;
 670
 671     TRACE("\n");
 672
 673     hres = get_length(ctx, vthis, &jsthis, &length);
 674     if(FAILED(hres))
 675         return hres;
 676
 677     if(argc > 1) {
 678         WARN("invalid arg_cnt %d\n", argc);
 679         return E_FAIL;
 680     }
 681
 682     if(argc == 1) {
 683         if(!is_object_instance(argv[0])) {
 684             WARN("arg is not dispatch\n");
 685             return E_FAIL;
 686         }
 687
 688         cmp_func = iface_to_jsdisp((IUnknown*)get_object(argv[0]));
 689         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 690             WARN("cmp_func is not a function\n");
 691             if(cmp_func)
 692                 jsdisp_release(cmp_func);
 693             return E_FAIL;
 694         }
 695     }
 696
 697     if(!length) {
 698         if(cmp_func)
 699             jsdisp_release(cmp_func);
 700         if(r)
 701             *r = jsval_obj(jsdisp_addref(jsthis));
 702         return S_OK;
 703     }
 704
 705     vtab = heap_alloc_zero(length * sizeof(*vtab));
 706     if(vtab) {
 707         for(i=0; i<length; i++) {
 708             hres = jsdisp_get_idx(jsthis, i, vtab+i);
 709             if(hres == DISP_E_UNKNOWNNAME) {
 710                 vtab[i] = jsval_undefined();
 711                 hres = S_OK;
 712             } else if(FAILED(hres)) {
 713                 WARN("Could not get elem %d: %08x\n", i, hres);
 714                 break;
 715             }
 716         }
 717     }else {
 718         hres = E_OUTOFMEMORY;
 719     }
 720
 721     if(SUCCEEDED(hres)) {
 722         sorttab = heap_alloc(length*2*sizeof(*sorttab));
 723         if(!sorttab)
 724             hres = E_OUTOFMEMORY;
 725     }
 726
 727     /* merge-sort */
 728     if(SUCCEEDED(hres)) {
 729         jsval_t *tmpv, **tmpbuf;
 730         INT cmp;
 731
 732         tmpbuf = sorttab + length;
 733         for(i=0; i < length; i++)
 734             sorttab[i] = vtab+i;
 735
 736         for(i=0; i < length/2; i++) {
 737             hres = sort_cmp(ctx, cmp_func, *sorttab[2*i+1], *sorttab[2*i], &cmp);
 738             if(FAILED(hres))
 739                 break;
 740
 741             if(cmp < 0) {
 742                 tmpv = sorttab[2*i];
 743                 sorttab[2*i] = sorttab[2*i+1];
 744                 sorttab[2*i+1] = tmpv;
 745             }
 746         }
 747
 748         if(SUCCEEDED(hres)) {
 749             DWORD k, a, b, bend;
 750
 751             for(k=2; k < length; k *= 2) {
 752                 for(i=0; i+k < length; i += 2*k) {
 753                     a = b = 0;
 754                     if(i+2*k <= length)
 755                         bend = k;
 756                     else
 757                         bend = length - (i+k);
 758
 759                     memcpy(tmpbuf, sorttab+i, k*sizeof(jsval_t*));
 760
 761                     while(a < k && b < bend) {
 762                         hres = sort_cmp(ctx, cmp_func, *tmpbuf[a], *sorttab[i+k+b], &cmp);
 763                         if(FAILED(hres))
 764                             break;
 765
 766                         if(cmp < 0) {
 767                             sorttab[i+a+b] = tmpbuf[a];
 768                             a++;
 769                         }else {
 770                             sorttab[i+a+b] = sorttab[i+k+b];
 771                             b++;
 772                         }
 773                     }
 774
 775                     if(FAILED(hres))
 776                         break;
 777
 778                     if(a < k)
 779                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(jsval_t*));
 780                 }
 781
 782                 if(FAILED(hres))
 783                     break;
 784             }
 785         }
 786
 787         for(i=0; SUCCEEDED(hres) && i < length; i++)
 788             hres = jsdisp_propput_idx(jsthis, i, *sorttab[i]);
 789     }
 790
 791     if(vtab) {
 792         for(i=0; i < length; i++)
 793             jsval_release(vtab[i]);
 794         heap_free(vtab);
 795     }
 796     heap_free(sorttab);
 797     if(cmp_func)
 798         jsdisp_release(cmp_func);
 799
 800     if(FAILED(hres))
 801         return hres;
 802
 803     if(r)
 804         *r = jsval_obj(jsdisp_addref(jsthis));
 805     return S_OK;
 806 }
 807
 808 /* ECMA-262 3rd Edition    15.4.4.12 */
 809 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 810         jsval_t *r)
 811 {
 812     DWORD length, start=0, delete_cnt=0, i, add_args = 0;
 813     jsdisp_t *ret_array = NULL, *jsthis;
 814     jsval_t val;
 815     double d;
 816     int n;
 817     HRESULT hres = S_OK;
 818
 819     TRACE("\n");
 820
 821     hres = get_length(ctx, vthis, &jsthis, &length);
 822     if(FAILED(hres))
 823         return hres;
 824
 825     if(argc) {
 826         hres = to_integer(ctx, argv[0], &d);
 827         if(FAILED(hres))
 828             return hres;
 829
 830         if(is_int32(d)) {
 831             if((n = d) >= 0)
 832                 start = min(n, length);
 833             else
 834                 start = -n > length ? 0 : length + n;
 835         }else {
 836             start = d < 0.0 ? 0 : length;
 837         }
 838     }
 839
 840     if(argc >= 2) {
 841         hres = to_integer(ctx, argv[1], &d);
 842         if(FAILED(hres))
 843             return hres;
 844
 845         if(is_int32(d)) {
 846             if((n = d) > 0)
 847                 delete_cnt = min(n, length-start);
 848         }else if(d > 0.0) {
 849             delete_cnt = length-start;
 850         }
 851
 852         add_args = argc-2;
 853     }
 854
 855     if(r) {
 856         hres = create_array(ctx, 0, &ret_array);
 857         if(FAILED(hres))
 858             return hres;
 859
 860         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 861             hres = jsdisp_get_idx(jsthis, start+i, &val);
 862             if(hres == DISP_E_UNKNOWNNAME) {
 863                 hres = S_OK;
 864             }else if(SUCCEEDED(hres)) {
 865                 hres = jsdisp_propput_idx(ret_array, i, val);
 866                 jsval_release(val);
 867             }
 868         }
 869
 870         if(SUCCEEDED(hres))
 871             hres = jsdisp_propput_name(ret_array, lengthW, jsval_number(delete_cnt));
 872     }
 873
 874     if(add_args < delete_cnt) {
 875         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 876             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &val);
 877             if(hres == DISP_E_UNKNOWNNAME) {
 878                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 879             }else if(SUCCEEDED(hres)) {
 880                 hres = jsdisp_propput_idx(jsthis, i+add_args, val);
 881                 jsval_release(val);
 882             }
 883         }
 884
 885         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 886             hres = jsdisp_delete_idx(jsthis, i-1);
 887     }else if(add_args > delete_cnt) {
 888         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 889             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &val);
 890             if(hres == DISP_E_UNKNOWNNAME) {
 891                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 892             }else if(SUCCEEDED(hres)) {
 893                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, val);
 894                 jsval_release(val);
 895             }
 896         }
 897     }
 898
 899     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 900         hres = jsdisp_propput_idx(jsthis, start+i, argv[i+2]);
 901
 902     if(SUCCEEDED(hres))
 903         hres = jsdisp_propput_name(jsthis, lengthW, jsval_number(length-delete_cnt+add_args));
 904
 905     if(FAILED(hres)) {
 906         if(ret_array)
 907             jsdisp_release(ret_array);
 908         return hres;
 909     }
 910
 911     if(r)
 912         *r = jsval_obj(ret_array);
 913     return S_OK;
 914 }
 915
 916 /* ECMA-262 3rd Edition    15.4.4.2 */
 917 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 918         jsval_t *r)
 919 {
 920     ArrayInstance *array;
 921
 922     TRACE("\n");
 923
 924     array = array_this(jsthis);
 925     if(!array)
 926         return throw_type_error(ctx, JS_E_ARRAY_EXPECTED, NULL);
 927
 928     return array_join(ctx, &array->dispex, array->length, default_separatorW, r);
 929 }
 930
 931 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 932         jsval_t *r)
 933 {
 934     FIXME("\n");
 935     return E_NOTIMPL;
 936 }
 937
 938 /* ECMA-262 3rd Edition    15.4.4.13 */
 939 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 940         jsval_t *r)
 941 {
 942     jsdisp_t *jsthis;
 943     WCHAR buf[14], *buf_end, *str;
 944     DWORD i, length;
 945     jsval_t val;
 946     DISPID id;
 947     HRESULT hres;
 948
 949     TRACE("\n");
 950
 951     hres = get_length(ctx, vthis, &jsthis, &length);
 952     if(FAILED(hres))
 953         return hres;
 954
 955     if(argc) {
 956         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 957         *buf_end-- = 0;
 958         i = length;
 959
 960         while(i--) {
 961             str = idx_to_str(i, buf_end);
 962
 963             hres = jsdisp_get_id(jsthis, str, 0, &id);
 964             if(SUCCEEDED(hres)) {
 965                 hres = jsdisp_propget(jsthis, id, &val);
 966                 if(FAILED(hres))
 967                     return hres;
 968
 969                 hres = jsdisp_propput_idx(jsthis, i+argc, val);
 970                 jsval_release(val);
 971             }else if(hres == DISP_E_UNKNOWNNAME) {
 972                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
 973             }
 974         }
 975
 976         if(FAILED(hres))
 977             return hres;
 978     }
 979
 980     for(i=0; i<argc; i++) {
 981         hres = jsdisp_propput_idx(jsthis, i, argv[i]);
 982         if(FAILED(hres))
 983             return hres;
 984     }
 985
 986     if(argc) {
 987         length += argc;
 988         hres = set_length(jsthis, length);
 989         if(FAILED(hres))
 990             return hres;
 991     }
 992
 993     if(r)
 994         *r = ctx->version < 2 ? jsval_undefined() : jsval_number(length);
 995     return S_OK;
 996 }
 997
 998 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 999         jsval_t *r)
1000 {
1001     TRACE("\n");
1002
1003     switch(flags) {
1004     case INVOKE_FUNC:
1005         return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
1006     case INVOKE_PROPERTYGET:
1007         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, r);
1008     default:
1009         FIXME("unimplemented flags %x\n", flags);
1010         return E_NOTIMPL;
1011     }
1012
1013     return S_OK;
1014 }
1015
1016 static void Array_destructor(jsdisp_t *dispex)
1017 {
1018     heap_free(dispex);
1019 }
1020
1021 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1022 {
1023     ArrayInstance *array = (ArrayInstance*)dispex;
1024     const WCHAR *ptr = name;
1025     DWORD id = 0;
1026
1027     if(!isdigitW(*ptr))
1028         return;
1029
1030     while(*ptr && isdigitW(*ptr)) {
1031         id = id*10 + (*ptr-'0');
1032         ptr++;
1033     }
1034
1035     if(*ptr)
1036         return;
1037
1038     if(id >= array->length)
1039         array->length = id+1;
1040 }
1041
1042 static const builtin_prop_t Array_props[] = {
1043     {concatW,                Array_concat,               PROPF_METHOD|1},
1044     {joinW,                  Array_join,                 PROPF_METHOD|1},
1045     {lengthW,                Array_length,               0},
1046     {popW,                   Array_pop,                  PROPF_METHOD},
1047     {pushW,                  Array_push,                 PROPF_METHOD|1},
1048     {reverseW,               Array_reverse,              PROPF_METHOD},
1049     {shiftW,                 Array_shift,                PROPF_METHOD},
1050     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1051     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1052     {spliceW,                Array_splice,               PROPF_METHOD|2},
1053     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1054     {toStringW,              Array_toString,             PROPF_METHOD},
1055     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1056 };
1057
1058 static const builtin_info_t Array_info = {
1059     JSCLASS_ARRAY,
1060     {NULL, Array_value, 0},
1061     sizeof(Array_props)/sizeof(*Array_props),
1062     Array_props,
1063     Array_destructor,
1064     Array_on_put
1065 };
1066
1067 static const builtin_prop_t ArrayInst_props[] = {
1068     {lengthW,                Array_length,               0}
1069 };
1070
1071 static const builtin_info_t ArrayInst_info = {
1072     JSCLASS_ARRAY,
1073     {NULL, Array_value, 0},
1074     sizeof(ArrayInst_props)/sizeof(*ArrayInst_props),
1075     ArrayInst_props,
1076     Array_destructor,
1077     Array_on_put
1078 };
1079
1080 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
1081         jsval_t *r)
1082 {
1083     jsdisp_t *obj;
1084     DWORD i;
1085     HRESULT hres;
1086
1087     TRACE("\n");
1088
1089     switch(flags) {
1090     case DISPATCH_METHOD:
1091     case DISPATCH_CONSTRUCT: {
1092         if(argc == 1 && is_number(argv[0])) {
1093             double n = get_number(argv[0]);
1094
1095             if(n < 0 || !is_int32(n))
1096                 return throw_range_error(ctx, JS_E_INVALID_LENGTH, NULL);
1097
1098             hres = create_array(ctx, n, &obj);
1099             if(FAILED(hres))
1100                 return hres;
1101
1102             *r = jsval_obj(obj);
1103             return S_OK;
1104         }
1105
1106         hres = create_array(ctx, argc, &obj);
1107         if(FAILED(hres))
1108             return hres;
1109
1110         for(i=0; i < argc; i++) {
1111             hres = jsdisp_propput_idx(obj, i, argv[i]);
1112             if(FAILED(hres))
1113                 break;
1114         }
1115         if(FAILED(hres)) {
1116             jsdisp_release(obj);
1117             return hres;
1118         }
1119
1120         *r = jsval_obj(obj);
1121         break;
1122     }
1123     default:
1124         FIXME("unimplemented flags: %x\n", flags);
1125         return E_NOTIMPL;
1126     }
1127
1128     return S_OK;
1129 }
1130
1131 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1132 {
1133     ArrayInstance *array;
1134     HRESULT hres;
1135
1136     array = heap_alloc_zero(sizeof(ArrayInstance));
1137     if(!array)
1138         return E_OUTOFMEMORY;
1139
1140     if(object_prototype)
1141         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1142     else
1143         hres = init_dispex_from_constr(&array->dispex, ctx, &ArrayInst_info, ctx->array_constr);
1144
1145     if(FAILED(hres)) {
1146         heap_free(array);
1147         return hres;
1148     }
1149
1150     *ret = array;
1151     return S_OK;
1152 }
1153
1154 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1155 {
1156     ArrayInstance *array;
1157     HRESULT hres;
1158
1159     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1160
1161     hres = alloc_array(ctx, object_prototype, &array);
1162     if(FAILED(hres))
1163         return hres;
1164
1165     hres = create_builtin_constructor(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1166
1167     jsdisp_release(&array->dispex);
1168     return hres;
1169 }
1170
1171 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1172 {
1173     ArrayInstance *array;
1174     HRESULT hres;
1175
1176     hres = alloc_array(ctx, NULL, &array);
1177     if(FAILED(hres))
1178         return hres;
1179
1180     array->length = length;
1181
1182     *ret = &array->dispex;
1183     return S_OK;
1184 }