dlls/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 "config.h"
  20 #include "wine/port.h"
  21
  22 #include <math.h>
  23 #include <assert.h>
  24
  25 #include "jscript.h"
  26
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  30
  31 typedef struct {
  32     jsdisp_t dispex;
  33
  34     DWORD length;
  35 } ArrayInstance;
  36
  37 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  38 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  39 static const WCHAR joinW[] = {'j','o','i','n',0};
  40 static const WCHAR popW[] = {'p','o','p',0};
  41 static const WCHAR pushW[] = {'p','u','s','h',0};
  42 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  43 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  44 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  45 static const WCHAR sortW[] = {'s','o','r','t',0};
  46 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  47 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  48 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  49 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  50
  51 static const WCHAR default_separatorW[] = {',',0};
  52
  53 static inline ArrayInstance *array_from_jsdisp(jsdisp_t *jsdisp)
  54 {
  55     return CONTAINING_RECORD(jsdisp, ArrayInstance, dispex);
  56 }
  57
  58 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  59 {
  60     return array_from_jsdisp(vdisp->u.jsdisp);
  61 }
  62
  63 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  64 {
  65     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  66 }
  67
  68 unsigned array_get_length(jsdisp_t *array)
  69 {
  70     assert(is_class(array, JSCLASS_ARRAY));
  71     return array_from_jsdisp(array)->length;
  72 }
  73
  74 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsdisp_t **jsthis, DWORD *ret)
  75 {
  76     ArrayInstance *array;
  77     jsval_t val;
  78     HRESULT hres;
  79
  80     array = array_this(vdisp);
  81     if(array) {
  82         *jsthis = &array->dispex;
  83         *ret = array->length;
  84         return S_OK;
  85     }
  86
  87     if(!is_jsdisp(vdisp))
  88         return throw_type_error(ctx, JS_E_JSCRIPT_EXPECTED, NULL);
  89
  90     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &val);
  91     if(FAILED(hres))
  92         return hres;
  93
  94     hres = to_uint32(ctx, val, ret);
  95     jsval_release(val);
  96     if(FAILED(hres))
  97         return hres;
  98
  99     *jsthis = vdisp->u.jsdisp;
 100     return S_OK;
 101 }
 102
 103 static HRESULT set_length(jsdisp_t *obj, DWORD length)
 104 {
 105     if(is_class(obj, JSCLASS_ARRAY)) {
 106         ((ArrayInstance*)obj)->length = length;
 107         return S_OK;
 108     }
 109
 110     return jsdisp_propput_name(obj, lengthW, jsval_number(length));
 111 }
 112
 113 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 114 {
 115     if(!idx) {
 116         *ptr = '0';
 117         return ptr;
 118     }
 119
 120     while(idx) {
 121         *ptr-- = '0' + (idx%10);
 122         idx /= 10;
 123     }
 124
 125     return ptr+1;
 126 }
 127
 128 static HRESULT Array_get_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
 129 {
 130     TRACE("%p\n", jsthis);
 131
 132     *r = jsval_number(array_from_jsdisp(jsthis)->length);
 133     return S_OK;
 134 }
 135
 136 static HRESULT Array_set_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t value)
 137 {
 138     ArrayInstance *This = array_from_jsdisp(jsthis);
 139     DOUBLE len = -1;
 140     DWORD i;
 141     HRESULT hres;
 142
 143     TRACE("%p %d\n", This, This->length);
 144
 145     hres = to_number(ctx, value, &len);
 146     if(FAILED(hres))
 147         return hres;
 148
 149     len = floor(len);
 150     if(len!=(DWORD)len)
 151         return throw_range_error(ctx, JS_E_INVALID_LENGTH, NULL);
 152
 153     for(i=len; i < This->length; i++) {
 154         hres = jsdisp_delete_idx(&This->dispex, i);
 155         if(FAILED(hres))
 156             return hres;
 157     }
 158
 159     This->length = len;
 160     return S_OK;
 161 }
 162
 163 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len)
 164 {
 165     jsval_t val;
 166     DWORD i;
 167     HRESULT hres;
 168
 169     for(i=0; i < obj->length; i++) {
 170         hres = jsdisp_get_idx(&obj->dispex, i, &val);
 171         if(hres == DISP_E_UNKNOWNNAME)
 172             continue;
 173         if(FAILED(hres))
 174             return hres;
 175
 176         hres = jsdisp_propput_idx(array, *len+i, val);
 177         jsval_release(val);
 178         if(FAILED(hres))
 179             return hres;
 180     }
 181
 182     *len += obj->length;
 183     return S_OK;
 184 }
 185
 186 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len)
 187 {
 188     jsdisp_t *jsobj;
 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);
 195             jsdisp_release(jsobj);
 196             return hres;
 197         }
 198         jsdisp_release(jsobj);
 199     }
 200
 201     return jsdisp_propput_idx(array, (*len)++, jsval_disp(obj));
 202 }
 203
 204 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 205         jsval_t *r)
 206 {
 207     jsdisp_t *ret;
 208     DWORD len = 0;
 209     HRESULT hres;
 210
 211     TRACE("\n");
 212
 213     hres = create_array(ctx, 0, &ret);
 214     if(FAILED(hres))
 215         return hres;
 216
 217     hres = concat_obj(ret, jsthis->u.disp, &len);
 218     if(SUCCEEDED(hres)) {
 219         DWORD i;
 220
 221         for(i=0; i < argc; i++) {
 222             if(is_object_instance(argv[i]))
 223                 hres = concat_obj(ret, get_object(argv[i]), &len);
 224             else
 225                 hres = jsdisp_propput_idx(ret, len++, argv[i]);
 226             if(FAILED(hres))
 227                 break;
 228         }
 229     }
 230
 231     if(FAILED(hres))
 232         return hres;
 233
 234     if(r)
 235         *r = jsval_obj(ret);
 236     else
 237         jsdisp_release(ret);
 238     return S_OK;
 239 }
 240
 241 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, jsval_t *r)
 242 {
 243     jsstr_t **str_tab, *ret;
 244     jsval_t val;
 245     DWORD i;
 246     HRESULT hres = E_FAIL;
 247
 248     if(!length) {
 249         if(r)
 250             *r = jsval_string(jsstr_empty());
 251         return S_OK;
 252     }
 253
 254     str_tab = heap_alloc_zero(length * sizeof(*str_tab));
 255     if(!str_tab)
 256         return E_OUTOFMEMORY;
 257
 258     for(i=0; i < length; i++) {
 259         hres = jsdisp_get_idx(array, i, &val);
 260         if(hres == DISP_E_UNKNOWNNAME) {
 261             hres = S_OK;
 262             continue;
 263         } else if(FAILED(hres))
 264             break;
 265
 266         if(!is_undefined(val) && !is_null(val)) {
 267             hres = to_string(ctx, val, str_tab+i);
 268             jsval_release(val);
 269             if(FAILED(hres))
 270                 break;
 271         }
 272     }
 273
 274     if(SUCCEEDED(hres)) {
 275         DWORD seplen = 0, len = 0;
 276
 277         seplen = strlenW(sep);
 278
 279         if(str_tab[0])
 280             len = jsstr_length(str_tab[0]);
 281         for(i=1; i < length; i++) {
 282             len += seplen;
 283             if(str_tab[i])
 284                 len += jsstr_length(str_tab[i]);
 285             if(len > JSSTR_MAX_LENGTH) {
 286                 hres = E_OUTOFMEMORY;
 287                 break;
 288             }
 289         }
 290
 291         if(SUCCEEDED(hres)) {
 292             WCHAR *ptr = NULL;
 293
 294             ptr = jsstr_alloc_buf(len, &ret);
 295             if(ptr) {
 296                 if(str_tab[0])
 297                     ptr += jsstr_flush(str_tab[0], ptr);
 298
 299                 for(i=1; i < length; i++) {
 300                     if(seplen) {
 301                         memcpy(ptr, sep, seplen*sizeof(WCHAR));
 302                         ptr += seplen;
 303                     }
 304
 305                     if(str_tab[i])
 306                         ptr += jsstr_flush(str_tab[i], ptr);
 307                 }
 308             }else {
 309                 hres = E_OUTOFMEMORY;
 310             }
 311         }
 312     }
 313
 314     for(i=0; i < length; i++) {
 315         if(str_tab[i])
 316             jsstr_release(str_tab[i]);
 317     }
 318     heap_free(str_tab);
 319     if(FAILED(hres))
 320         return hres;
 321
 322     TRACE("= %s\n", debugstr_jsstr(ret));
 323
 324     if(r)
 325         *r = jsval_string(ret);
 326     else
 327         jsstr_release(ret);
 328     return S_OK;
 329 }
 330
 331 /* ECMA-262 3rd Edition    15.4.4.5 */
 332 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 333         jsval_t *r)
 334 {
 335     jsdisp_t *jsthis;
 336     DWORD length;
 337     HRESULT hres;
 338
 339     TRACE("\n");
 340
 341     hres = get_length(ctx, vthis, &jsthis, &length);
 342     if(FAILED(hres))
 343         return hres;
 344
 345     if(argc) {
 346         const WCHAR *sep;
 347         jsstr_t *sep_str;
 348
 349         hres = to_flat_string(ctx, argv[0], &sep_str, &sep);
 350         if(FAILED(hres))
 351             return hres;
 352
 353         hres = array_join(ctx, jsthis, length, sep, r);
 354
 355         jsstr_release(sep_str);
 356     }else {
 357         hres = array_join(ctx, jsthis, length, default_separatorW, r);
 358     }
 359
 360     return hres;
 361 }
 362
 363 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 364         jsval_t *r)
 365 {
 366     jsdisp_t *jsthis;
 367     jsval_t val;
 368     DWORD length;
 369     HRESULT hres;
 370
 371     TRACE("\n");
 372
 373     hres = get_length(ctx, vthis, &jsthis, &length);
 374     if(FAILED(hres))
 375         return hres;
 376
 377     if(!length) {
 378         hres = set_length(jsthis, 0);
 379         if(FAILED(hres))
 380             return hres;
 381
 382         if(r)
 383             *r = jsval_undefined();
 384         return S_OK;
 385     }
 386
 387     length--;
 388     hres = jsdisp_get_idx(jsthis, length, &val);
 389     if(SUCCEEDED(hres))
 390         hres = jsdisp_delete_idx(jsthis, length);
 391     else if(hres == DISP_E_UNKNOWNNAME)
 392         val = jsval_undefined();
 393     else
 394         return hres;
 395
 396     if(SUCCEEDED(hres))
 397         hres = set_length(jsthis, length);
 398
 399     if(FAILED(hres)) {
 400         jsval_release(val);
 401         return hres;
 402     }
 403
 404     if(r)
 405         *r = val;
 406     else
 407         jsval_release(val);
 408     return hres;
 409 }
 410
 411 /* ECMA-262 3rd Edition    15.4.4.7 */
 412 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 413         jsval_t *r)
 414 {
 415     jsdisp_t *jsthis;
 416     DWORD length = 0;
 417     unsigned i;
 418     HRESULT hres;
 419
 420     TRACE("\n");
 421
 422     hres = get_length(ctx, vthis, &jsthis, &length);
 423     if(FAILED(hres))
 424         return hres;
 425
 426     for(i=0; i < argc; i++) {
 427         hres = jsdisp_propput_idx(jsthis, length+i, argv[i]);
 428         if(FAILED(hres))
 429             return hres;
 430     }
 431
 432     hres = set_length(jsthis, length+argc);
 433     if(FAILED(hres))
 434         return hres;
 435
 436     if(r)
 437         *r = jsval_number(length+argc);
 438     return S_OK;
 439 }
 440
 441 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 442         jsval_t *r)
 443 {
 444     jsdisp_t *jsthis;
 445     DWORD length, k, l;
 446     jsval_t v1, v2;
 447     HRESULT hres1, hres2;
 448
 449     TRACE("\n");
 450
 451     hres1 = get_length(ctx, vthis, &jsthis, &length);
 452     if(FAILED(hres1))
 453         return hres1;
 454
 455     for(k=0; k<length/2; k++) {
 456         l = length-k-1;
 457
 458         hres1 = jsdisp_get_idx(jsthis, k, &v1);
 459         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 460             return hres1;
 461
 462         hres2 = jsdisp_get_idx(jsthis, l, &v2);
 463         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 464             jsval_release(v1);
 465             return hres2;
 466         }
 467
 468         if(hres1 == DISP_E_UNKNOWNNAME)
 469             hres1 = jsdisp_delete_idx(jsthis, l);
 470         else
 471             hres1 = jsdisp_propput_idx(jsthis, l, v1);
 472
 473         if(FAILED(hres1)) {
 474             jsval_release(v1);
 475             jsval_release(v2);
 476             return hres1;
 477         }
 478
 479         if(hres2 == DISP_E_UNKNOWNNAME)
 480             hres2 = jsdisp_delete_idx(jsthis, k);
 481         else
 482             hres2 = jsdisp_propput_idx(jsthis, k, v2);
 483
 484         if(FAILED(hres2)) {
 485             jsval_release(v2);
 486             return hres2;
 487         }
 488     }
 489
 490     if(r)
 491         *r = jsval_obj(jsdisp_addref(jsthis));
 492     return S_OK;
 493 }
 494
 495 /* ECMA-262 3rd Edition    15.4.4.9 */
 496 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 497         jsval_t *r)
 498 {
 499     jsdisp_t *jsthis;
 500     DWORD length = 0, i;
 501     jsval_t v, ret;
 502     HRESULT hres;
 503
 504     TRACE("\n");
 505
 506     hres = get_length(ctx, vthis, &jsthis, &length);
 507     if(FAILED(hres))
 508         return hres;
 509
 510     if(!length) {
 511         hres = set_length(jsthis, 0);
 512         if(FAILED(hres))
 513             return hres;
 514
 515         if(r)
 516             *r = jsval_undefined();
 517         return S_OK;
 518     }
 519
 520     hres = jsdisp_get_idx(jsthis, 0, &ret);
 521     if(hres == DISP_E_UNKNOWNNAME) {
 522         ret = jsval_undefined();
 523         hres = S_OK;
 524     }
 525
 526     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 527         hres = jsdisp_get_idx(jsthis, i, &v);
 528         if(hres == DISP_E_UNKNOWNNAME)
 529             hres = jsdisp_delete_idx(jsthis, i-1);
 530         else if(SUCCEEDED(hres))
 531             hres = jsdisp_propput_idx(jsthis, i-1, v);
 532     }
 533
 534     if(SUCCEEDED(hres)) {
 535         hres = jsdisp_delete_idx(jsthis, length-1);
 536         if(SUCCEEDED(hres))
 537             hres = set_length(jsthis, length-1);
 538     }
 539
 540     if(FAILED(hres))
 541         return hres;
 542
 543     if(r)
 544         *r = ret;
 545     else
 546         jsval_release(ret);
 547     return hres;
 548 }
 549
 550 /* ECMA-262 3rd Edition    15.4.4.10 */
 551 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
 552 {
 553     jsdisp_t *arr, *jsthis;
 554     DOUBLE range;
 555     DWORD length, start, end, idx;
 556     HRESULT hres;
 557
 558     TRACE("\n");
 559
 560     hres = get_length(ctx, vthis, &jsthis, &length);
 561     if(FAILED(hres))
 562         return hres;
 563
 564     if(argc) {
 565         hres = to_number(ctx, argv[0], &range);
 566         if(FAILED(hres))
 567             return hres;
 568
 569         range = floor(range);
 570         if(-range>length || isnan(range)) start = 0;
 571         else if(range < 0) start = range+length;
 572         else if(range <= length) start = range;
 573         else start = length;
 574     }
 575     else start = 0;
 576
 577     if(argc > 1) {
 578         hres = to_number(ctx, argv[1], &range);
 579         if(FAILED(hres))
 580             return hres;
 581
 582         range = floor(range);
 583         if(-range>length) end = 0;
 584         else if(range < 0) end = range+length;
 585         else if(range <= length) end = range;
 586         else end = length;
 587     }
 588     else end = length;
 589
 590     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 591     if(FAILED(hres))
 592         return hres;
 593
 594     for(idx=start; idx<end; idx++) {
 595         jsval_t v;
 596
 597         hres = jsdisp_get_idx(jsthis, idx, &v);
 598         if(hres == DISP_E_UNKNOWNNAME)
 599             continue;
 600
 601         if(SUCCEEDED(hres)) {
 602             hres = jsdisp_propput_idx(arr, idx-start, v);
 603             jsval_release(v);
 604         }
 605
 606         if(FAILED(hres)) {
 607             jsdisp_release(arr);
 608             return hres;
 609         }
 610     }
 611
 612     if(r)
 613         *r = jsval_obj(arr);
 614     else
 615         jsdisp_release(arr);
 616
 617     return S_OK;
 618 }
 619
 620 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, jsval_t v1, jsval_t v2, INT *cmp)
 621 {
 622     HRESULT hres;
 623
 624     if(cmp_func) {
 625         jsval_t args[2] = {v1, v2};
 626         jsval_t res;
 627         double n;
 628
 629         hres = jsdisp_call_value(cmp_func, NULL, DISPATCH_METHOD, 2, args, &res);
 630         if(FAILED(hres))
 631             return hres;
 632
 633         hres = to_number(ctx, res, &n);
 634         jsval_release(res);
 635         if(FAILED(hres))
 636             return hres;
 637
 638         if(n == 0)
 639             *cmp = 0;
 640         *cmp = n > 0.0 ? 1 : -1;
 641     }else if(is_undefined(v1)) {
 642         *cmp = is_undefined(v2) ? 0 : 1;
 643     }else if(is_undefined(v2)) {
 644         *cmp = -1;
 645     }else if(is_number(v1) && is_number(v2)) {
 646         double d = get_number(v1)-get_number(v2);
 647         if(d > 0.0)
 648             *cmp = 1;
 649         else
 650             *cmp = d < -0.0 ? -1 : 0;
 651     }else {
 652         jsstr_t *x, *y;
 653
 654         hres = to_string(ctx, v1, &x);
 655         if(FAILED(hres))
 656             return hres;
 657
 658         hres = to_string(ctx, v2, &y);
 659         if(SUCCEEDED(hres)) {
 660             *cmp = jsstr_cmp(x, y);
 661             jsstr_release(y);
 662         }
 663         jsstr_release(x);
 664         if(FAILED(hres))
 665             return hres;
 666     }
 667
 668     return S_OK;
 669 }
 670
 671 /* ECMA-262 3rd Edition    15.4.4.11 */
 672 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 673         jsval_t *r)
 674 {
 675     jsdisp_t *jsthis, *cmp_func = NULL;
 676     jsval_t *vtab, **sorttab = NULL;
 677     DWORD length;
 678     DWORD i;
 679     HRESULT hres = S_OK;
 680
 681     TRACE("\n");
 682
 683     hres = get_length(ctx, vthis, &jsthis, &length);
 684     if(FAILED(hres))
 685         return hres;
 686
 687     if(argc > 1) {
 688         WARN("invalid arg_cnt %d\n", argc);
 689         return E_FAIL;
 690     }
 691
 692     if(argc == 1) {
 693         if(!is_object_instance(argv[0])) {
 694             WARN("arg is not dispatch\n");
 695             return E_FAIL;
 696         }
 697
 698         cmp_func = iface_to_jsdisp((IUnknown*)get_object(argv[0]));
 699         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 700             WARN("cmp_func is not a function\n");
 701             if(cmp_func)
 702                 jsdisp_release(cmp_func);
 703             return E_FAIL;
 704         }
 705     }
 706
 707     if(!length) {
 708         if(cmp_func)
 709             jsdisp_release(cmp_func);
 710         if(r)
 711             *r = jsval_obj(jsdisp_addref(jsthis));
 712         return S_OK;
 713     }
 714
 715     vtab = heap_alloc_zero(length * sizeof(*vtab));
 716     if(vtab) {
 717         for(i=0; i<length; i++) {
 718             hres = jsdisp_get_idx(jsthis, i, vtab+i);
 719             if(hres == DISP_E_UNKNOWNNAME) {
 720                 vtab[i] = jsval_undefined();
 721                 hres = S_OK;
 722             } else if(FAILED(hres)) {
 723                 WARN("Could not get elem %d: %08x\n", i, hres);
 724                 break;
 725             }
 726         }
 727     }else {
 728         hres = E_OUTOFMEMORY;
 729     }
 730
 731     if(SUCCEEDED(hres)) {
 732         sorttab = heap_alloc(length*2*sizeof(*sorttab));
 733         if(!sorttab)
 734             hres = E_OUTOFMEMORY;
 735     }
 736
 737     /* merge-sort */
 738     if(SUCCEEDED(hres)) {
 739         jsval_t *tmpv, **tmpbuf;
 740         INT cmp;
 741
 742         tmpbuf = sorttab + length;
 743         for(i=0; i < length; i++)
 744             sorttab[i] = vtab+i;
 745
 746         for(i=0; i < length/2; i++) {
 747             hres = sort_cmp(ctx, cmp_func, *sorttab[2*i+1], *sorttab[2*i], &cmp);
 748             if(FAILED(hres))
 749                 break;
 750
 751             if(cmp < 0) {
 752                 tmpv = sorttab[2*i];
 753                 sorttab[2*i] = sorttab[2*i+1];
 754                 sorttab[2*i+1] = tmpv;
 755             }
 756         }
 757
 758         if(SUCCEEDED(hres)) {
 759             DWORD k, a, b, bend;
 760
 761             for(k=2; k < length; k *= 2) {
 762                 for(i=0; i+k < length; i += 2*k) {
 763                     a = b = 0;
 764                     if(i+2*k <= length)
 765                         bend = k;
 766                     else
 767                         bend = length - (i+k);
 768
 769                     memcpy(tmpbuf, sorttab+i, k*sizeof(jsval_t*));
 770
 771                     while(a < k && b < bend) {
 772                         hres = sort_cmp(ctx, cmp_func, *tmpbuf[a], *sorttab[i+k+b], &cmp);
 773                         if(FAILED(hres))
 774                             break;
 775
 776                         if(cmp < 0) {
 777                             sorttab[i+a+b] = tmpbuf[a];
 778                             a++;
 779                         }else {
 780                             sorttab[i+a+b] = sorttab[i+k+b];
 781                             b++;
 782                         }
 783                     }
 784
 785                     if(FAILED(hres))
 786                         break;
 787
 788                     if(a < k)
 789                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(jsval_t*));
 790                 }
 791
 792                 if(FAILED(hres))
 793                     break;
 794             }
 795         }
 796
 797         for(i=0; SUCCEEDED(hres) && i < length; i++)
 798             hres = jsdisp_propput_idx(jsthis, i, *sorttab[i]);
 799     }
 800
 801     if(vtab) {
 802         for(i=0; i < length; i++)
 803             jsval_release(vtab[i]);
 804         heap_free(vtab);
 805     }
 806     heap_free(sorttab);
 807     if(cmp_func)
 808         jsdisp_release(cmp_func);
 809
 810     if(FAILED(hres))
 811         return hres;
 812
 813     if(r)
 814         *r = jsval_obj(jsdisp_addref(jsthis));
 815     return S_OK;
 816 }
 817
 818 /* ECMA-262 3rd Edition    15.4.4.12 */
 819 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 820         jsval_t *r)
 821 {
 822     DWORD length, start=0, delete_cnt=0, i, add_args = 0;
 823     jsdisp_t *ret_array = NULL, *jsthis;
 824     jsval_t val;
 825     double d;
 826     int n;
 827     HRESULT hres = S_OK;
 828
 829     TRACE("\n");
 830
 831     hres = get_length(ctx, vthis, &jsthis, &length);
 832     if(FAILED(hres))
 833         return hres;
 834
 835     if(argc) {
 836         hres = to_integer(ctx, argv[0], &d);
 837         if(FAILED(hres))
 838             return hres;
 839
 840         if(is_int32(d)) {
 841             if((n = d) >= 0)
 842                 start = min(n, length);
 843             else
 844                 start = -n > length ? 0 : length + n;
 845         }else {
 846             start = d < 0.0 ? 0 : length;
 847         }
 848     }
 849
 850     if(argc >= 2) {
 851         hres = to_integer(ctx, argv[1], &d);
 852         if(FAILED(hres))
 853             return hres;
 854
 855         if(is_int32(d)) {
 856             if((n = d) > 0)
 857                 delete_cnt = min(n, length-start);
 858         }else if(d > 0.0) {
 859             delete_cnt = length-start;
 860         }
 861
 862         add_args = argc-2;
 863     }
 864
 865     if(r) {
 866         hres = create_array(ctx, 0, &ret_array);
 867         if(FAILED(hres))
 868             return hres;
 869
 870         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 871             hres = jsdisp_get_idx(jsthis, start+i, &val);
 872             if(hres == DISP_E_UNKNOWNNAME) {
 873                 hres = S_OK;
 874             }else if(SUCCEEDED(hres)) {
 875                 hres = jsdisp_propput_idx(ret_array, i, val);
 876                 jsval_release(val);
 877             }
 878         }
 879
 880         if(SUCCEEDED(hres))
 881             hres = jsdisp_propput_name(ret_array, lengthW, jsval_number(delete_cnt));
 882     }
 883
 884     if(add_args < delete_cnt) {
 885         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 886             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &val);
 887             if(hres == DISP_E_UNKNOWNNAME) {
 888                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 889             }else if(SUCCEEDED(hres)) {
 890                 hres = jsdisp_propput_idx(jsthis, i+add_args, val);
 891                 jsval_release(val);
 892             }
 893         }
 894
 895         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 896             hres = jsdisp_delete_idx(jsthis, i-1);
 897     }else if(add_args > delete_cnt) {
 898         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 899             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &val);
 900             if(hres == DISP_E_UNKNOWNNAME) {
 901                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 902             }else if(SUCCEEDED(hres)) {
 903                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, val);
 904                 jsval_release(val);
 905             }
 906         }
 907     }
 908
 909     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 910         hres = jsdisp_propput_idx(jsthis, start+i, argv[i+2]);
 911
 912     if(SUCCEEDED(hres))
 913         hres = jsdisp_propput_name(jsthis, lengthW, jsval_number(length-delete_cnt+add_args));
 914
 915     if(FAILED(hres)) {
 916         if(ret_array)
 917             jsdisp_release(ret_array);
 918         return hres;
 919     }
 920
 921     if(r)
 922         *r = jsval_obj(ret_array);
 923     return S_OK;
 924 }
 925
 926 /* ECMA-262 3rd Edition    15.4.4.2 */
 927 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 928         jsval_t *r)
 929 {
 930     ArrayInstance *array;
 931
 932     TRACE("\n");
 933
 934     array = array_this(jsthis);
 935     if(!array)
 936         return throw_type_error(ctx, JS_E_ARRAY_EXPECTED, NULL);
 937
 938     return array_join(ctx, &array->dispex, array->length, default_separatorW, r);
 939 }
 940
 941 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 942         jsval_t *r)
 943 {
 944     FIXME("\n");
 945     return E_NOTIMPL;
 946 }
 947
 948 /* ECMA-262 3rd Edition    15.4.4.13 */
 949 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 950         jsval_t *r)
 951 {
 952     jsdisp_t *jsthis;
 953     WCHAR buf[14], *buf_end, *str;
 954     DWORD i, length;
 955     jsval_t val;
 956     DISPID id;
 957     HRESULT hres;
 958
 959     TRACE("\n");
 960
 961     hres = get_length(ctx, vthis, &jsthis, &length);
 962     if(FAILED(hres))
 963         return hres;
 964
 965     if(argc) {
 966         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 967         *buf_end-- = 0;
 968         i = length;
 969
 970         while(i--) {
 971             str = idx_to_str(i, buf_end);
 972
 973             hres = jsdisp_get_id(jsthis, str, 0, &id);
 974             if(SUCCEEDED(hres)) {
 975                 hres = jsdisp_propget(jsthis, id, &val);
 976                 if(FAILED(hres))
 977                     return hres;
 978
 979                 hres = jsdisp_propput_idx(jsthis, i+argc, val);
 980                 jsval_release(val);
 981             }else if(hres == DISP_E_UNKNOWNNAME) {
 982                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
 983             }
 984         }
 985
 986         if(FAILED(hres))
 987             return hres;
 988     }
 989
 990     for(i=0; i<argc; i++) {
 991         hres = jsdisp_propput_idx(jsthis, i, argv[i]);
 992         if(FAILED(hres))
 993             return hres;
 994     }
 995
 996     if(argc) {
 997         length += argc;
 998         hres = set_length(jsthis, length);
 999         if(FAILED(hres))
1000             return hres;
1001     }
1002
1003     if(r)
1004         *r = ctx->version < 2 ? jsval_undefined() : jsval_number(length);
1005     return S_OK;
1006 }
1007
1008 static HRESULT Array_get_value(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
1009 {
1010     ArrayInstance *array = array_from_jsdisp(jsthis);
1011
1012     TRACE("\n");
1013
1014     return array_join(ctx, &array->dispex, array->length, default_separatorW, r);
1015 }
1016
1017 static void Array_destructor(jsdisp_t *dispex)
1018 {
1019     heap_free(dispex);
1020 }
1021
1022 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1023 {
1024     ArrayInstance *array = (ArrayInstance*)dispex;
1025     const WCHAR *ptr = name;
1026     DWORD id = 0;
1027
1028     if(!isdigitW(*ptr))
1029         return;
1030
1031     while(*ptr && isdigitW(*ptr)) {
1032         id = id*10 + (*ptr-'0');
1033         ptr++;
1034     }
1035
1036     if(*ptr)
1037         return;
1038
1039     if(id >= array->length)
1040         array->length = id+1;
1041 }
1042
1043 static const builtin_prop_t Array_props[] = {
1044     {concatW,                Array_concat,               PROPF_METHOD|1},
1045     {joinW,                  Array_join,                 PROPF_METHOD|1},
1046     {lengthW,                NULL,0,                     Array_get_length, Array_set_length},
1047     {popW,                   Array_pop,                  PROPF_METHOD},
1048     {pushW,                  Array_push,                 PROPF_METHOD|1},
1049     {reverseW,               Array_reverse,              PROPF_METHOD},
1050     {shiftW,                 Array_shift,                PROPF_METHOD},
1051     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1052     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1053     {spliceW,                Array_splice,               PROPF_METHOD|2},
1054     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1055     {toStringW,              Array_toString,             PROPF_METHOD},
1056     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1057 };
1058
1059 static const builtin_info_t Array_info = {
1060     JSCLASS_ARRAY,
1061     {NULL, NULL,0, Array_get_value},
1062     sizeof(Array_props)/sizeof(*Array_props),
1063     Array_props,
1064     Array_destructor,
1065     Array_on_put
1066 };
1067
1068 static const builtin_prop_t ArrayInst_props[] = {
1069     {lengthW,                NULL,0,                     Array_get_length, Array_set_length}
1070 };
1071
1072 static const builtin_info_t ArrayInst_info = {
1073     JSCLASS_ARRAY,
1074     {NULL, NULL,0, Array_get_value},
1075     sizeof(ArrayInst_props)/sizeof(*ArrayInst_props),
1076     ArrayInst_props,
1077     Array_destructor,
1078     Array_on_put
1079 };
1080
1081 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
1082         jsval_t *r)
1083 {
1084     jsdisp_t *obj;
1085     DWORD i;
1086     HRESULT hres;
1087
1088     TRACE("\n");
1089
1090     switch(flags) {
1091     case DISPATCH_METHOD:
1092     case DISPATCH_CONSTRUCT: {
1093         if(argc == 1 && is_number(argv[0])) {
1094             double n = get_number(argv[0]);
1095
1096             if(n < 0 || !is_int32(n))
1097                 return throw_range_error(ctx, JS_E_INVALID_LENGTH, NULL);
1098
1099             hres = create_array(ctx, n, &obj);
1100             if(FAILED(hres))
1101                 return hres;
1102
1103             *r = jsval_obj(obj);
1104             return S_OK;
1105         }
1106
1107         hres = create_array(ctx, argc, &obj);
1108         if(FAILED(hres))
1109             return hres;
1110
1111         for(i=0; i < argc; i++) {
1112             hres = jsdisp_propput_idx(obj, i, argv[i]);
1113             if(FAILED(hres))
1114                 break;
1115         }
1116         if(FAILED(hres)) {
1117             jsdisp_release(obj);
1118             return hres;
1119         }
1120
1121         *r = jsval_obj(obj);
1122         break;
1123     }
1124     default:
1125         FIXME("unimplemented flags: %x\n", flags);
1126         return E_NOTIMPL;
1127     }
1128
1129     return S_OK;
1130 }
1131
1132 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1133 {
1134     ArrayInstance *array;
1135     HRESULT hres;
1136
1137     array = heap_alloc_zero(sizeof(ArrayInstance));
1138     if(!array)
1139         return E_OUTOFMEMORY;
1140
1141     if(object_prototype)
1142         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1143     else
1144         hres = init_dispex_from_constr(&array->dispex, ctx, &ArrayInst_info, ctx->array_constr);
1145
1146     if(FAILED(hres)) {
1147         heap_free(array);
1148         return hres;
1149     }
1150
1151     *ret = array;
1152     return S_OK;
1153 }
1154
1155 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1156 {
1157     ArrayInstance *array;
1158     HRESULT hres;
1159
1160     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1161
1162     hres = alloc_array(ctx, object_prototype, &array);
1163     if(FAILED(hres))
1164         return hres;
1165
1166     hres = create_builtin_constructor(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1167
1168     jsdisp_release(&array->dispex);
1169     return hres;
1170 }
1171
1172 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1173 {
1174     ArrayInstance *array;
1175     HRESULT hres;
1176
1177     hres = alloc_array(ctx, NULL, &array);
1178     if(FAILED(hres))
1179         return hres;
1180
1181     array->length = length;
1182
1183     *ret = &array->dispex;
1184     return S_OK;
1185 }