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
  24 #include "jscript.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  29
  30 typedef struct {
  31     jsdisp_t dispex;
  32
  33     DWORD length;
  34 } ArrayInstance;
  35
  36 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  37 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  38 static const WCHAR joinW[] = {'j','o','i','n',0};
  39 static const WCHAR popW[] = {'p','o','p',0};
  40 static const WCHAR pushW[] = {'p','u','s','h',0};
  41 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  42 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  43 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  44 static const WCHAR sortW[] = {'s','o','r','t',0};
  45 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  46 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  47 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  48 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  49
  50 static const WCHAR default_separatorW[] = {',',0};
  51
  52 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  53 {
  54     return (ArrayInstance*)vdisp->u.jsdisp;
  55 }
  56
  57 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  58 {
  59     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  60 }
  61
  62 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsexcept_t *ei, jsdisp_t **jsthis, DWORD *ret)
  63 {
  64     ArrayInstance *array;
  65     VARIANT var;
  66     HRESULT hres;
  67
  68     array = array_this(vdisp);
  69     if(array) {
  70         *jsthis = &array->dispex;
  71         *ret = array->length;
  72         return S_OK;
  73     }
  74
  75     if(!is_jsdisp(vdisp))
  76         return throw_type_error(ctx, ei, JS_E_JSCRIPT_EXPECTED, NULL);
  77
  78     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &var, ei);
  79     if(FAILED(hres))
  80         return hres;
  81
  82     hres = to_uint32(ctx, &var, ei, ret);
  83     VariantClear(&var);
  84     if(FAILED(hres))
  85         return hres;
  86
  87     *jsthis = vdisp->u.jsdisp;
  88     return S_OK;
  89 }
  90
  91 static HRESULT set_length(jsdisp_t *obj, jsexcept_t *ei, DWORD length)
  92 {
  93     VARIANT var;
  94
  95     if(is_class(obj, JSCLASS_ARRAY)) {
  96         ((ArrayInstance*)obj)->length = length;
  97         return S_OK;
  98     }
  99
 100     num_set_int(&var, length);
 101     return jsdisp_propput_name(obj, lengthW, &var, ei);
 102 }
 103
 104 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 105 {
 106     if(!idx) {
 107         *ptr = '0';
 108         return ptr;
 109     }
 110
 111     while(idx) {
 112         *ptr-- = '0' + (idx%10);
 113         idx /= 10;
 114     }
 115
 116     return ptr+1;
 117 }
 118
 119 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, VARIANT *argv,
 120         VARIANT *retv, jsexcept_t *ei)
 121 {
 122     ArrayInstance *This = array_from_vdisp(jsthis);
 123
 124     TRACE("%p %d\n", This, This->length);
 125
 126     switch(flags) {
 127     case DISPATCH_PROPERTYGET:
 128         num_set_int(retv, This->length);
 129         break;
 130     case DISPATCH_PROPERTYPUT: {
 131         DOUBLE len = -1;
 132         DWORD i;
 133         HRESULT hres;
 134
 135         hres = to_number(ctx, argv, ei, &len);
 136         if(FAILED(hres))
 137             return hres;
 138
 139         len = floor(len);
 140         if(len!=(DWORD)len)
 141             return throw_range_error(ctx, ei, 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         break;
 151     }
 152     default:
 153         FIXME("unimplemented flags %x\n", flags);
 154         return E_NOTIMPL;
 155     }
 156
 157     return S_OK;
 158 }
 159
 160 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len, jsexcept_t *ei)
 161 {
 162     VARIANT var;
 163     DWORD i;
 164     HRESULT hres;
 165
 166     for(i=0; i < obj->length; i++) {
 167         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei);
 168         if(hres == DISP_E_UNKNOWNNAME)
 169             continue;
 170         if(FAILED(hres))
 171             return hres;
 172
 173         hres = jsdisp_propput_idx(array, *len+i, &var, ei);
 174         VariantClear(&var);
 175         if(FAILED(hres))
 176             return hres;
 177     }
 178
 179     *len += obj->length;
 180     return S_OK;
 181 }
 182
 183 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei)
 184 {
 185     jsdisp_t *jsobj;
 186     VARIANT var;
 187     HRESULT hres;
 188
 189     jsobj = iface_to_jsdisp((IUnknown*)obj);
 190     if(jsobj) {
 191         if(is_class(jsobj, JSCLASS_ARRAY)) {
 192             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei);
 193             jsdisp_release(jsobj);
 194             return hres;
 195         }
 196         jsdisp_release(jsobj);
 197     }
 198
 199     V_VT(&var) = VT_DISPATCH;
 200     V_DISPATCH(&var) = obj;
 201     return jsdisp_propput_idx(array, (*len)++, &var, ei);
 202 }
 203
 204 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, VARIANT *argv,
 205         VARIANT *retv, jsexcept_t *ei)
 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, ei);
 218     if(SUCCEEDED(hres)) {
 219         VARIANT *arg;
 220         DWORD i;
 221
 222         for(i=0; i < argc; i++) {
 223             arg = argv+i;
 224             if(V_VT(arg) == VT_DISPATCH)
 225                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei);
 226             else
 227                 hres = jsdisp_propput_idx(ret, len++, arg, ei);
 228             if(FAILED(hres))
 229                 break;
 230         }
 231     }
 232
 233     if(FAILED(hres))
 234         return hres;
 235
 236     if(retv)
 237         var_set_jsdisp(retv, ret);
 238     else
 239         jsdisp_release(ret);
 240     return S_OK;
 241 }
 242
 243 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv, jsexcept_t *ei)
 244 {
 245     BSTR *str_tab, ret = NULL;
 246     VARIANT var;
 247     DWORD i;
 248     HRESULT hres = E_FAIL;
 249
 250     if(!length) {
 251         if(retv) {
 252             V_VT(retv) = VT_BSTR;
 253             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 254             if(!V_BSTR(retv))
 255                 return E_OUTOFMEMORY;
 256         }
 257         return S_OK;
 258     }
 259
 260     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 261     if(!str_tab)
 262         return E_OUTOFMEMORY;
 263
 264     for(i=0; i < length; i++) {
 265         hres = jsdisp_get_idx(array, i, &var, ei);
 266         if(hres == DISP_E_UNKNOWNNAME) {
 267             hres = S_OK;
 268             continue;
 269         } else if(FAILED(hres))
 270             break;
 271
 272         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 273             hres = to_string(ctx, &var, ei, str_tab+i);
 274         VariantClear(&var);
 275         if(FAILED(hres))
 276             break;
 277     }
 278
 279     if(SUCCEEDED(hres)) {
 280         DWORD seplen = 0, len = 0;
 281         WCHAR *ptr;
 282
 283         seplen = strlenW(sep);
 284
 285         if(str_tab[0])
 286             len = SysStringLen(str_tab[0]);
 287         for(i=1; i < length; i++)
 288             len += seplen + SysStringLen(str_tab[i]);
 289
 290         ret = SysAllocStringLen(NULL, len);
 291         if(ret) {
 292             DWORD tmplen = 0;
 293
 294             if(str_tab[0]) {
 295                 tmplen = SysStringLen(str_tab[0]);
 296                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 297             }
 298
 299             ptr = ret + tmplen;
 300             for(i=1; i < length; i++) {
 301                 if(seplen) {
 302                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 303                     ptr += seplen;
 304                 }
 305
 306                 if(str_tab[i]) {
 307                     tmplen = SysStringLen(str_tab[i]);
 308                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 309                     ptr += tmplen;
 310                 }
 311             }
 312             *ptr=0;
 313         }else {
 314             hres = E_OUTOFMEMORY;
 315         }
 316     }
 317
 318     for(i=0; i < length; i++)
 319         SysFreeString(str_tab[i]);
 320     heap_free(str_tab);
 321     if(FAILED(hres))
 322         return hres;
 323
 324     TRACE("= %s\n", debugstr_w(ret));
 325
 326     if(retv) {
 327         if(!ret) {
 328             ret = SysAllocStringLen(NULL, 0);
 329             if(!ret)
 330                 return E_OUTOFMEMORY;
 331         }
 332
 333         V_VT(retv) = VT_BSTR;
 334         V_BSTR(retv) = ret;
 335     }else {
 336         SysFreeString(ret);
 337     }
 338
 339     return S_OK;
 340 }
 341
 342 /* ECMA-262 3rd Edition    15.4.4.5 */
 343 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 344         VARIANT *retv, jsexcept_t *ei)
 345 {
 346     jsdisp_t *jsthis;
 347     DWORD length;
 348     HRESULT hres;
 349
 350     TRACE("\n");
 351
 352     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 353     if(FAILED(hres))
 354         return hres;
 355
 356     if(argc) {
 357         BSTR sep;
 358
 359         hres = to_string(ctx, argv, ei, &sep);
 360         if(FAILED(hres))
 361             return hres;
 362
 363         hres = array_join(ctx, jsthis, length, sep, retv, ei);
 364
 365         SysFreeString(sep);
 366     }else {
 367         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei);
 368     }
 369
 370     return hres;
 371 }
 372
 373 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 374         VARIANT *retv, jsexcept_t *ei)
 375 {
 376     jsdisp_t *jsthis;
 377     VARIANT val;
 378     DWORD length;
 379     HRESULT hres;
 380
 381     TRACE("\n");
 382
 383     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 384     if(FAILED(hres))
 385         return hres;
 386
 387     if(!length) {
 388         hres = set_length(jsthis, ei, 0);
 389         if(FAILED(hres))
 390             return hres;
 391
 392         if(retv)
 393             V_VT(retv) = VT_EMPTY;
 394         return S_OK;
 395     }
 396
 397     length--;
 398     hres = jsdisp_get_idx(jsthis, length, &val, ei);
 399     if(SUCCEEDED(hres)) {
 400         hres = jsdisp_delete_idx(jsthis, length);
 401     } else if(hres == DISP_E_UNKNOWNNAME) {
 402         V_VT(&val) = VT_EMPTY;
 403         hres = S_OK;
 404     } else
 405         return hres;
 406
 407     if(SUCCEEDED(hres))
 408         hres = set_length(jsthis, ei, length);
 409
 410     if(FAILED(hres)) {
 411         VariantClear(&val);
 412         return hres;
 413     }
 414
 415     if(retv)
 416         *retv = val;
 417     else
 418         VariantClear(&val);
 419
 420     return S_OK;
 421 }
 422
 423 /* ECMA-262 3rd Edition    15.4.4.7 */
 424 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 425         VARIANT *retv, jsexcept_t *ei)
 426 {
 427     jsdisp_t *jsthis;
 428     DWORD length = 0;
 429     unsigned i;
 430     HRESULT hres;
 431
 432     TRACE("\n");
 433
 434     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 435     if(FAILED(hres))
 436         return hres;
 437
 438     for(i=0; i < argc; i++) {
 439         hres = jsdisp_propput_idx(jsthis, length+i, argv+i, ei);
 440         if(FAILED(hres))
 441             return hres;
 442     }
 443
 444     hres = set_length(jsthis, ei, length+argc);
 445     if(FAILED(hres))
 446         return hres;
 447
 448     if(retv)
 449         num_set_int(retv, length+argc);
 450     return S_OK;
 451 }
 452
 453 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 454         VARIANT *retv, jsexcept_t *ei)
 455 {
 456     jsdisp_t *jsthis;
 457     DWORD length, k, l;
 458     VARIANT v1, v2;
 459     HRESULT hres1, hres2;
 460
 461     TRACE("\n");
 462
 463     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 464     if(FAILED(hres1))
 465         return hres1;
 466
 467     for(k=0; k<length/2; k++) {
 468         l = length-k-1;
 469
 470         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei);
 471         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 472             return hres1;
 473
 474         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei);
 475         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 476             VariantClear(&v1);
 477             return hres2;
 478         }
 479
 480         if(hres1 == DISP_E_UNKNOWNNAME)
 481             hres1 = jsdisp_delete_idx(jsthis, l);
 482         else
 483             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei);
 484
 485         if(FAILED(hres1)) {
 486             VariantClear(&v1);
 487             VariantClear(&v2);
 488             return hres1;
 489         }
 490
 491         if(hres2 == DISP_E_UNKNOWNNAME)
 492             hres2 = jsdisp_delete_idx(jsthis, k);
 493         else
 494             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei);
 495
 496         if(FAILED(hres2)) {
 497             VariantClear(&v2);
 498             return hres2;
 499         }
 500     }
 501
 502     if(retv) {
 503         jsdisp_addref(jsthis);
 504         var_set_jsdisp(retv, jsthis);
 505     }
 506
 507     return S_OK;
 508 }
 509
 510 /* ECMA-262 3rd Edition    15.4.4.9 */
 511 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 512         VARIANT *retv, jsexcept_t *ei)
 513 {
 514     jsdisp_t *jsthis;
 515     DWORD length = 0, i;
 516     VARIANT v, ret;
 517     HRESULT hres;
 518
 519     TRACE("\n");
 520
 521     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 522     if(FAILED(hres))
 523         return hres;
 524
 525     if(!length) {
 526         hres = set_length(jsthis, ei, 0);
 527         if(FAILED(hres))
 528             return hres;
 529     }
 530
 531     if(!length) {
 532         if(retv)
 533             V_VT(retv) = VT_EMPTY;
 534         return S_OK;
 535     }
 536
 537     hres = jsdisp_get_idx(jsthis, 0, &ret, ei);
 538     if(hres == DISP_E_UNKNOWNNAME) {
 539         V_VT(&ret) = VT_EMPTY;
 540         hres = S_OK;
 541     }
 542
 543     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 544         hres = jsdisp_get_idx(jsthis, i, &v, ei);
 545         if(hres == DISP_E_UNKNOWNNAME)
 546             hres = jsdisp_delete_idx(jsthis, i-1);
 547         else if(SUCCEEDED(hres))
 548             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei);
 549     }
 550
 551     if(SUCCEEDED(hres)) {
 552         hres = jsdisp_delete_idx(jsthis, length-1);
 553         if(SUCCEEDED(hres))
 554             hres = set_length(jsthis, ei, length-1);
 555     }
 556
 557     if(SUCCEEDED(hres) && retv)
 558         *retv = ret;
 559     else
 560         VariantClear(&ret);
 561     return hres;
 562 }
 563
 564 /* ECMA-262 3rd Edition    15.4.4.10 */
 565 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 566         VARIANT *retv, jsexcept_t *ei)
 567 {
 568     jsdisp_t *arr, *jsthis;
 569     DOUBLE range;
 570     DWORD length, start, end, idx;
 571     HRESULT hres;
 572
 573     TRACE("\n");
 574
 575     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 576     if(FAILED(hres))
 577         return hres;
 578
 579     if(argc) {
 580         hres = to_number(ctx, argv, ei, &range);
 581         if(FAILED(hres))
 582             return hres;
 583
 584         range = floor(range);
 585         if(-range>length || isnan(range)) start = 0;
 586         else if(range < 0) start = range+length;
 587         else if(range <= length) start = range;
 588         else start = length;
 589     }
 590     else start = 0;
 591
 592     if(argc > 1) {
 593         hres = to_number(ctx, argv+1, ei, &range);
 594         if(FAILED(hres))
 595             return hres;
 596
 597         range = floor(range);
 598         if(-range>length) end = 0;
 599         else if(range < 0) end = range+length;
 600         else if(range <= length) end = range;
 601         else end = length;
 602     }
 603     else end = length;
 604
 605     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 606     if(FAILED(hres))
 607         return hres;
 608
 609     for(idx=start; idx<end; idx++) {
 610         VARIANT v;
 611
 612         hres = jsdisp_get_idx(jsthis, idx, &v, ei);
 613         if(hres == DISP_E_UNKNOWNNAME)
 614             continue;
 615
 616         if(SUCCEEDED(hres)) {
 617             hres = jsdisp_propput_idx(arr, idx-start, &v, ei);
 618             VariantClear(&v);
 619         }
 620
 621         if(FAILED(hres)) {
 622             jsdisp_release(arr);
 623             return hres;
 624         }
 625     }
 626
 627     if(retv)
 628         var_set_jsdisp(retv, arr);
 629     else
 630         jsdisp_release(arr);
 631
 632     return S_OK;
 633 }
 634
 635 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 636 {
 637     HRESULT hres;
 638
 639     if(cmp_func) {
 640         VARIANTARG args[2];
 641         double n;
 642         VARIANT res;
 643
 644         args[0] = *v1;
 645         args[1] = *v2;
 646
 647         hres = jsdisp_call_value(cmp_func, NULL, DISPATCH_METHOD, 2, args, &res, ei);
 648         if(FAILED(hres))
 649             return hres;
 650
 651         hres = to_number(ctx, &res, ei, &n);
 652         VariantClear(&res);
 653         if(FAILED(hres))
 654             return hres;
 655
 656         if(n == 0)
 657             *cmp = 0;
 658         *cmp = n > 0.0 ? 1 : -1;
 659     }else if(V_VT(v1) == VT_EMPTY) {
 660         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 661     }else if(V_VT(v2) == VT_EMPTY) {
 662         *cmp = -1;
 663     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 664         DOUBLE d = num_val(v1)-num_val(v2);
 665         if(d > 0.0)
 666             *cmp = 1;
 667         else
 668             *cmp = d < -0.0 ? -1 : 0;
 669     }else {
 670         BSTR x, y;
 671
 672         hres = to_string(ctx, v1, ei, &x);
 673         if(FAILED(hres))
 674             return hres;
 675
 676         hres = to_string(ctx, v2, ei, &y);
 677         if(SUCCEEDED(hres)) {
 678             *cmp = strcmpW(x, y);
 679             SysFreeString(y);
 680         }
 681         SysFreeString(x);
 682         if(FAILED(hres))
 683             return hres;
 684     }
 685
 686     return S_OK;
 687 }
 688
 689 /* ECMA-262 3rd Edition    15.4.4.11 */
 690 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 691         VARIANT *retv, jsexcept_t *ei)
 692 {
 693     jsdisp_t *jsthis, *cmp_func = NULL;
 694     VARIANT *vtab, **sorttab = NULL;
 695     DWORD length;
 696     DWORD i;
 697     HRESULT hres = S_OK;
 698
 699     TRACE("\n");
 700
 701     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 702     if(FAILED(hres))
 703         return hres;
 704
 705     if(argc > 1) {
 706         WARN("invalid arg_cnt %d\n", argc);
 707         return E_FAIL;
 708     }
 709
 710     if(argc == 1) {
 711         if(V_VT(argv) != VT_DISPATCH) {
 712             WARN("arg is not dispatch\n");
 713             return E_FAIL;
 714         }
 715
 716
 717         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(argv));
 718         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 719             WARN("cmp_func is not a function\n");
 720             if(cmp_func)
 721                 jsdisp_release(cmp_func);
 722             return E_FAIL;
 723         }
 724     }
 725
 726     if(!length) {
 727         if(cmp_func)
 728             jsdisp_release(cmp_func);
 729         if(retv) {
 730             jsdisp_addref(jsthis);
 731             var_set_jsdisp(retv, jsthis);
 732         }
 733         return S_OK;
 734     }
 735
 736     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 737     if(vtab) {
 738         for(i=0; i<length; i++) {
 739             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei);
 740             if(hres == DISP_E_UNKNOWNNAME) {
 741                 V_VT(vtab+i) = VT_EMPTY;
 742                 hres = S_OK;
 743             } else if(FAILED(hres)) {
 744                 WARN("Could not get elem %d: %08x\n", i, hres);
 745                 break;
 746             }
 747         }
 748     }else {
 749         hres = E_OUTOFMEMORY;
 750     }
 751
 752     if(SUCCEEDED(hres)) {
 753         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 754         if(!sorttab)
 755             hres = E_OUTOFMEMORY;
 756     }
 757
 758     /* merge-sort */
 759     if(SUCCEEDED(hres)) {
 760         VARIANT *tmpv, **tmpbuf;
 761         INT cmp;
 762
 763         tmpbuf = sorttab + length;
 764         for(i=0; i < length; i++)
 765             sorttab[i] = vtab+i;
 766
 767         for(i=0; i < length/2; i++) {
 768             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 769             if(FAILED(hres))
 770                 break;
 771
 772             if(cmp < 0) {
 773                 tmpv = sorttab[2*i];
 774                 sorttab[2*i] = sorttab[2*i+1];
 775                 sorttab[2*i+1] = tmpv;
 776             }
 777         }
 778
 779         if(SUCCEEDED(hres)) {
 780             DWORD k, a, b, bend;
 781
 782             for(k=2; k < length; k *= 2) {
 783                 for(i=0; i+k < length; i += 2*k) {
 784                     a = b = 0;
 785                     if(i+2*k <= length)
 786                         bend = k;
 787                     else
 788                         bend = length - (i+k);
 789
 790                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 791
 792                     while(a < k && b < bend) {
 793                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 794                         if(FAILED(hres))
 795                             break;
 796
 797                         if(cmp < 0) {
 798                             sorttab[i+a+b] = tmpbuf[a];
 799                             a++;
 800                         }else {
 801                             sorttab[i+a+b] = sorttab[i+k+b];
 802                             b++;
 803                         }
 804                     }
 805
 806                     if(FAILED(hres))
 807                         break;
 808
 809                     if(a < k)
 810                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 811                 }
 812
 813                 if(FAILED(hres))
 814                     break;
 815             }
 816         }
 817
 818         for(i=0; SUCCEEDED(hres) && i < length; i++)
 819             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei);
 820     }
 821
 822     if(vtab) {
 823         for(i=0; i < length; i++)
 824             VariantClear(vtab+i);
 825         heap_free(vtab);
 826     }
 827     heap_free(sorttab);
 828     if(cmp_func)
 829         jsdisp_release(cmp_func);
 830
 831     if(FAILED(hres))
 832         return hres;
 833
 834     if(retv) {
 835         jsdisp_addref(jsthis);
 836         var_set_jsdisp(retv, jsthis);
 837     }
 838
 839     return S_OK;
 840 }
 841
 842 /* ECMA-262 3rd Edition    15.4.4.12 */
 843 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 844         VARIANT *retv, jsexcept_t *ei)
 845 {
 846     DWORD length, start=0, delete_cnt=0, i, add_args = 0;
 847     jsdisp_t *ret_array = NULL, *jsthis;
 848     VARIANT v;
 849     double d;
 850     int n;
 851     HRESULT hres = S_OK;
 852
 853     TRACE("\n");
 854
 855     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 856     if(FAILED(hres))
 857         return hres;
 858
 859     if(argc) {
 860         hres = to_integer(ctx, argv, ei, &d);
 861         if(FAILED(hres))
 862             return hres;
 863
 864         if(is_int32(d)) {
 865             if((n = d) >= 0)
 866                 start = min(n, length);
 867             else
 868                 start = -n > length ? 0 : length + n;
 869         }else {
 870             start = d < 0.0 ? 0 : length;
 871         }
 872     }
 873
 874     if(argc >= 2) {
 875         hres = to_integer(ctx, argv+1, ei, &d);
 876         if(FAILED(hres))
 877             return hres;
 878
 879         if(is_int32(d)) {
 880             if((n = d) > 0)
 881                 delete_cnt = min(n, length-start);
 882         }else if(d > 0.0) {
 883             delete_cnt = length-start;
 884         }
 885
 886         add_args = argc-2;
 887     }
 888
 889     if(retv) {
 890         hres = create_array(ctx, 0, &ret_array);
 891         if(FAILED(hres))
 892             return hres;
 893
 894         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 895             hres = jsdisp_get_idx(jsthis, start+i, &v, ei);
 896             if(hres == DISP_E_UNKNOWNNAME)
 897                 hres = S_OK;
 898             else if(SUCCEEDED(hres))
 899                 hres = jsdisp_propput_idx(ret_array, i, &v, ei);
 900         }
 901
 902         if(SUCCEEDED(hres)) {
 903             num_set_int(&v, delete_cnt);
 904             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 905         }
 906     }
 907
 908     if(add_args < delete_cnt) {
 909         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 910             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei);
 911             if(hres == DISP_E_UNKNOWNNAME)
 912                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 913             else if(SUCCEEDED(hres))
 914                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei);
 915         }
 916
 917         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 918             hres = jsdisp_delete_idx(jsthis, i-1);
 919     }else if(add_args > delete_cnt) {
 920         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 921             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei);
 922             if(hres == DISP_E_UNKNOWNNAME)
 923                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 924             else if(SUCCEEDED(hres))
 925                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei);
 926         }
 927     }
 928
 929     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 930         hres = jsdisp_propput_idx(jsthis, start+i, argv+i+2, ei);
 931
 932     if(SUCCEEDED(hres)) {
 933         num_set_int(&v, length-delete_cnt+add_args);
 934         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 935     }
 936
 937     if(FAILED(hres)) {
 938         if(ret_array)
 939             jsdisp_release(ret_array);
 940         return hres;
 941     }
 942
 943     if(retv)
 944         var_set_jsdisp(retv, ret_array);
 945     return S_OK;
 946 }
 947
 948 /* ECMA-262 3rd Edition    15.4.4.2 */
 949 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, VARIANT *argv,
 950         VARIANT *retv, jsexcept_t *ei)
 951 {
 952     ArrayInstance *array;
 953
 954     TRACE("\n");
 955
 956     array = array_this(jsthis);
 957     if(!array)
 958         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 959
 960     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei);
 961 }
 962
 963 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 964         VARIANT *retv, jsexcept_t *ei)
 965 {
 966     FIXME("\n");
 967     return E_NOTIMPL;
 968 }
 969
 970 /* ECMA-262 3rd Edition    15.4.4.13 */
 971 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
 972         VARIANT *retv, jsexcept_t *ei)
 973 {
 974     jsdisp_t *jsthis;
 975     WCHAR buf[14], *buf_end, *str;
 976     DWORD i, length;
 977     VARIANT var;
 978     DISPID id;
 979     HRESULT hres;
 980
 981     TRACE("\n");
 982
 983     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 984     if(FAILED(hres))
 985         return hres;
 986
 987     if(argc) {
 988         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 989         *buf_end-- = 0;
 990         i = length;
 991
 992         while(i--) {
 993             str = idx_to_str(i, buf_end);
 994
 995             hres = jsdisp_get_id(jsthis, str, 0, &id);
 996             if(SUCCEEDED(hres)) {
 997                 hres = jsdisp_propget(jsthis, id, &var, ei);
 998                 if(FAILED(hres))
 999                     return hres;
1000
1001                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei);
1002                 VariantClear(&var);
1003             }else if(hres == DISP_E_UNKNOWNNAME) {
1004                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1005             }
1006         }
1007
1008         if(FAILED(hres))
1009             return hres;
1010     }
1011
1012     for(i=0; i<argc; i++) {
1013         hres = jsdisp_propput_idx(jsthis, i, argv+i, ei);
1014         if(FAILED(hres))
1015             return hres;
1016     }
1017
1018     if(argc) {
1019         length += argc;
1020         hres = set_length(jsthis, ei, length);
1021         if(FAILED(hres))
1022             return hres;
1023     }
1024
1025     if(retv) {
1026         if(ctx->version < 2)
1027             V_VT(retv) = VT_EMPTY;
1028         else
1029             num_set_int(retv, length);
1030     }
1031     return S_OK;
1032 }
1033
1034 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, VARIANT *argv,
1035         VARIANT *retv, jsexcept_t *ei)
1036 {
1037     TRACE("\n");
1038
1039     switch(flags) {
1040     case INVOKE_FUNC:
1041         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1042     case INVOKE_PROPERTYGET:
1043         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei);
1044     default:
1045         FIXME("unimplemented flags %x\n", flags);
1046         return E_NOTIMPL;
1047     }
1048
1049     return S_OK;
1050 }
1051
1052 static void Array_destructor(jsdisp_t *dispex)
1053 {
1054     heap_free(dispex);
1055 }
1056
1057 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1058 {
1059     ArrayInstance *array = (ArrayInstance*)dispex;
1060     const WCHAR *ptr = name;
1061     DWORD id = 0;
1062
1063     if(!isdigitW(*ptr))
1064         return;
1065
1066     while(*ptr && isdigitW(*ptr)) {
1067         id = id*10 + (*ptr-'0');
1068         ptr++;
1069     }
1070
1071     if(*ptr)
1072         return;
1073
1074     if(id >= array->length)
1075         array->length = id+1;
1076 }
1077
1078 static const builtin_prop_t Array_props[] = {
1079     {concatW,                Array_concat,               PROPF_METHOD|1},
1080     {joinW,                  Array_join,                 PROPF_METHOD|1},
1081     {lengthW,                Array_length,               0},
1082     {popW,                   Array_pop,                  PROPF_METHOD},
1083     {pushW,                  Array_push,                 PROPF_METHOD|1},
1084     {reverseW,               Array_reverse,              PROPF_METHOD},
1085     {shiftW,                 Array_shift,                PROPF_METHOD},
1086     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1087     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1088     {spliceW,                Array_splice,               PROPF_METHOD|2},
1089     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1090     {toStringW,              Array_toString,             PROPF_METHOD},
1091     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1092 };
1093
1094 static const builtin_info_t Array_info = {
1095     JSCLASS_ARRAY,
1096     {NULL, Array_value, 0},
1097     sizeof(Array_props)/sizeof(*Array_props),
1098     Array_props,
1099     Array_destructor,
1100     Array_on_put
1101 };
1102
1103 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, VARIANT *argv,
1104         VARIANT *retv, jsexcept_t *ei)
1105 {
1106     jsdisp_t *obj;
1107     DWORD i;
1108     HRESULT hres;
1109
1110     TRACE("\n");
1111
1112     switch(flags) {
1113     case DISPATCH_METHOD:
1114     case DISPATCH_CONSTRUCT: {
1115         if(argc == 1 && V_VT(argv) == VT_I4) {
1116             if(V_I4(argv) < 0)
1117                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1118
1119             hres = create_array(ctx, V_I4(argv), &obj);
1120             if(FAILED(hres))
1121                 return hres;
1122
1123             var_set_jsdisp(retv, obj);
1124             return S_OK;
1125         }
1126
1127         hres = create_array(ctx, argc, &obj);
1128         if(FAILED(hres))
1129             return hres;
1130
1131         for(i=0; i < argc; i++) {
1132             hres = jsdisp_propput_idx(obj, i, argv+i, ei);
1133             if(FAILED(hres))
1134                 break;
1135         }
1136         if(FAILED(hres)) {
1137             jsdisp_release(obj);
1138             return hres;
1139         }
1140
1141         var_set_jsdisp(retv, obj);
1142         break;
1143     }
1144     default:
1145         FIXME("unimplemented flags: %x\n", flags);
1146         return E_NOTIMPL;
1147     }
1148
1149     return S_OK;
1150 }
1151
1152 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1153 {
1154     ArrayInstance *array;
1155     HRESULT hres;
1156
1157     array = heap_alloc_zero(sizeof(ArrayInstance));
1158     if(!array)
1159         return E_OUTOFMEMORY;
1160
1161     if(object_prototype)
1162         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1163     else
1164         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1165
1166     if(FAILED(hres)) {
1167         heap_free(array);
1168         return hres;
1169     }
1170
1171     *ret = array;
1172     return S_OK;
1173 }
1174
1175 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1176 {
1177     ArrayInstance *array;
1178     HRESULT hres;
1179
1180     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1181
1182     hres = alloc_array(ctx, object_prototype, &array);
1183     if(FAILED(hres))
1184         return hres;
1185
1186     hres = create_builtin_constructor(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1187
1188     jsdisp_release(&array->dispex);
1189     return hres;
1190 }
1191
1192 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1193 {
1194     ArrayInstance *array;
1195     HRESULT hres;
1196
1197     hres = alloc_array(ctx, NULL, &array);
1198     if(FAILED(hres))
1199         return hres;
1200
1201     array->length = length;
1202
1203     *ret = &array->dispex;
1204     return S_OK;
1205 }