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