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     V_VT(&var) = VT_I4;
 101     V_I4(&var) = length;
 102     return jsdisp_propput_name(obj, lengthW, &var, ei);
 103 }
 104
 105 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 106 {
 107     if(!idx) {
 108         *ptr = '0';
 109         return ptr;
 110     }
 111
 112     while(idx) {
 113         *ptr-- = '0' + (idx%10);
 114         idx /= 10;
 115     }
 116
 117     return ptr+1;
 118 }
 119
 120 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 121         VARIANT *retv, jsexcept_t *ei)
 122 {
 123     ArrayInstance *This = array_from_vdisp(jsthis);
 124
 125     TRACE("%p %d\n", This, This->length);
 126
 127     switch(flags) {
 128     case DISPATCH_PROPERTYGET:
 129         V_VT(retv) = VT_I4;
 130         V_I4(retv) = This->length;
 131         break;
 132     case DISPATCH_PROPERTYPUT: {
 133         DOUBLE len = -1;
 134         DWORD i;
 135         HRESULT hres;
 136
 137         hres = to_number(ctx, get_arg(dp, 0), ei, &len);
 138         if(FAILED(hres))
 139             return hres;
 140
 141         len = floor(len);
 142         if(len!=(DWORD)len)
 143             return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
 144
 145         for(i=len; i<This->length; i++) {
 146             hres = jsdisp_delete_idx(&This->dispex, i);
 147             if(FAILED(hres))
 148                 return hres;
 149         }
 150
 151         This->length = len;
 152         break;
 153     }
 154     default:
 155         FIXME("unimplemented flags %x\n", flags);
 156         return E_NOTIMPL;
 157     }
 158
 159     return S_OK;
 160 }
 161
 162 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len, jsexcept_t *ei)
 163 {
 164     VARIANT var;
 165     DWORD i;
 166     HRESULT hres;
 167
 168     for(i=0; i < obj->length; i++) {
 169         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei);
 170         if(hres == DISP_E_UNKNOWNNAME)
 171             continue;
 172         if(FAILED(hres))
 173             return hres;
 174
 175         hres = jsdisp_propput_idx(array, *len+i, &var, ei);
 176         VariantClear(&var);
 177         if(FAILED(hres))
 178             return hres;
 179     }
 180
 181     *len += obj->length;
 182     return S_OK;
 183 }
 184
 185 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei)
 186 {
 187     jsdisp_t *jsobj;
 188     VARIANT var;
 189     HRESULT hres;
 190
 191     jsobj = iface_to_jsdisp((IUnknown*)obj);
 192     if(jsobj) {
 193         if(is_class(jsobj, JSCLASS_ARRAY)) {
 194             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei);
 195             jsdisp_release(jsobj);
 196             return hres;
 197         }
 198         jsdisp_release(jsobj);
 199     }
 200
 201     V_VT(&var) = VT_DISPATCH;
 202     V_DISPATCH(&var) = obj;
 203     return jsdisp_propput_idx(array, (*len)++, &var, ei);
 204 }
 205
 206 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 207         VARIANT *retv, jsexcept_t *ei)
 208 {
 209     jsdisp_t *ret;
 210     DWORD len = 0;
 211     HRESULT hres;
 212
 213     TRACE("\n");
 214
 215     hres = create_array(ctx, 0, &ret);
 216     if(FAILED(hres))
 217         return hres;
 218
 219     hres = concat_obj(ret, jsthis->u.disp, &len, ei);
 220     if(SUCCEEDED(hres)) {
 221         VARIANT *arg;
 222         DWORD i;
 223
 224         for(i=0; i < arg_cnt(dp); i++) {
 225             arg = get_arg(dp, i);
 226             if(V_VT(arg) == VT_DISPATCH)
 227                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei);
 228             else
 229                 hres = jsdisp_propput_idx(ret, len++, arg, ei);
 230             if(FAILED(hres))
 231                 break;
 232         }
 233     }
 234
 235     if(FAILED(hres))
 236         return hres;
 237
 238     if(retv)
 239         var_set_jsdisp(retv, ret);
 240     else
 241         jsdisp_release(ret);
 242     return S_OK;
 243 }
 244
 245 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv, jsexcept_t *ei)
 246 {
 247     BSTR *str_tab, ret = NULL;
 248     VARIANT var;
 249     DWORD i;
 250     HRESULT hres = E_FAIL;
 251
 252     if(!length) {
 253         if(retv) {
 254             V_VT(retv) = VT_BSTR;
 255             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 256             if(!V_BSTR(retv))
 257                 return E_OUTOFMEMORY;
 258         }
 259         return S_OK;
 260     }
 261
 262     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 263     if(!str_tab)
 264         return E_OUTOFMEMORY;
 265
 266     for(i=0; i < length; i++) {
 267         hres = jsdisp_get_idx(array, i, &var, ei);
 268         if(hres == DISP_E_UNKNOWNNAME) {
 269             hres = S_OK;
 270             continue;
 271         } else if(FAILED(hres))
 272             break;
 273
 274         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 275             hres = to_string(ctx, &var, ei, str_tab+i);
 276         VariantClear(&var);
 277         if(FAILED(hres))
 278             break;
 279     }
 280
 281     if(SUCCEEDED(hres)) {
 282         DWORD seplen = 0, len = 0;
 283         WCHAR *ptr;
 284
 285         seplen = strlenW(sep);
 286
 287         if(str_tab[0])
 288             len = SysStringLen(str_tab[0]);
 289         for(i=1; i < length; i++)
 290             len += seplen + SysStringLen(str_tab[i]);
 291
 292         ret = SysAllocStringLen(NULL, len);
 293         if(ret) {
 294             DWORD tmplen = 0;
 295
 296             if(str_tab[0]) {
 297                 tmplen = SysStringLen(str_tab[0]);
 298                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 299             }
 300
 301             ptr = ret + tmplen;
 302             for(i=1; i < length; i++) {
 303                 if(seplen) {
 304                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 305                     ptr += seplen;
 306                 }
 307
 308                 if(str_tab[i]) {
 309                     tmplen = SysStringLen(str_tab[i]);
 310                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 311                     ptr += tmplen;
 312                 }
 313             }
 314             *ptr=0;
 315         }else {
 316             hres = E_OUTOFMEMORY;
 317         }
 318     }
 319
 320     for(i=0; i < length; i++)
 321         SysFreeString(str_tab[i]);
 322     heap_free(str_tab);
 323     if(FAILED(hres))
 324         return hres;
 325
 326     TRACE("= %s\n", debugstr_w(ret));
 327
 328     if(retv) {
 329         if(!ret) {
 330             ret = SysAllocStringLen(NULL, 0);
 331             if(!ret)
 332                 return E_OUTOFMEMORY;
 333         }
 334
 335         V_VT(retv) = VT_BSTR;
 336         V_BSTR(retv) = ret;
 337     }else {
 338         SysFreeString(ret);
 339     }
 340
 341     return S_OK;
 342 }
 343
 344 /* ECMA-262 3rd Edition    15.4.4.5 */
 345 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 346         VARIANT *retv, jsexcept_t *ei)
 347 {
 348     jsdisp_t *jsthis;
 349     DWORD length;
 350     HRESULT hres;
 351
 352     TRACE("\n");
 353
 354     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 355     if(FAILED(hres))
 356         return hres;
 357
 358     if(arg_cnt(dp)) {
 359         BSTR sep;
 360
 361         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 362         if(FAILED(hres))
 363             return hres;
 364
 365         hres = array_join(ctx, jsthis, length, sep, retv, ei);
 366
 367         SysFreeString(sep);
 368     }else {
 369         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei);
 370     }
 371
 372     return hres;
 373 }
 374
 375 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 376         VARIANT *retv, jsexcept_t *ei)
 377 {
 378     jsdisp_t *jsthis;
 379     VARIANT val;
 380     DWORD length;
 381     HRESULT hres;
 382
 383     TRACE("\n");
 384
 385     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 386     if(FAILED(hres))
 387         return hres;
 388
 389     if(!length) {
 390         hres = set_length(jsthis, ei, 0);
 391         if(FAILED(hres))
 392             return hres;
 393
 394         if(retv)
 395             V_VT(retv) = VT_EMPTY;
 396         return S_OK;
 397     }
 398
 399     length--;
 400     hres = jsdisp_get_idx(jsthis, length, &val, ei);
 401     if(SUCCEEDED(hres)) {
 402         hres = jsdisp_delete_idx(jsthis, length);
 403     } else if(hres == DISP_E_UNKNOWNNAME) {
 404         V_VT(&val) = VT_EMPTY;
 405         hres = S_OK;
 406     } else
 407         return hres;
 408
 409     if(SUCCEEDED(hres))
 410         hres = set_length(jsthis, ei, length);
 411
 412     if(FAILED(hres)) {
 413         VariantClear(&val);
 414         return hres;
 415     }
 416
 417     if(retv)
 418         *retv = val;
 419     else
 420         VariantClear(&val);
 421
 422     return S_OK;
 423 }
 424
 425 /* ECMA-262 3rd Edition    15.4.4.7 */
 426 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 427         VARIANT *retv, jsexcept_t *ei)
 428 {
 429     jsdisp_t *jsthis;
 430     DWORD length = 0;
 431     int i, n;
 432     HRESULT hres;
 433
 434     TRACE("\n");
 435
 436     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 437     if(FAILED(hres))
 438         return hres;
 439
 440     n = arg_cnt(dp);
 441     for(i=0; i < n; i++) {
 442         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei);
 443         if(FAILED(hres))
 444             return hres;
 445     }
 446
 447     hres = set_length(jsthis, ei, length+n);
 448     if(FAILED(hres))
 449         return hres;
 450
 451     if(retv) {
 452         V_VT(retv) = VT_I4;
 453         V_I4(retv) = length+n;
 454     }
 455     return S_OK;
 456 }
 457
 458 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 459         VARIANT *retv, jsexcept_t *ei)
 460 {
 461     jsdisp_t *jsthis;
 462     DWORD length, k, l;
 463     VARIANT v1, v2;
 464     HRESULT hres1, hres2;
 465
 466     TRACE("\n");
 467
 468     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 469     if(FAILED(hres1))
 470         return hres1;
 471
 472     for(k=0; k<length/2; k++) {
 473         l = length-k-1;
 474
 475         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei);
 476         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 477             return hres1;
 478
 479         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei);
 480         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 481             VariantClear(&v1);
 482             return hres2;
 483         }
 484
 485         if(hres1 == DISP_E_UNKNOWNNAME)
 486             hres1 = jsdisp_delete_idx(jsthis, l);
 487         else
 488             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei);
 489
 490         if(FAILED(hres1)) {
 491             VariantClear(&v1);
 492             VariantClear(&v2);
 493             return hres1;
 494         }
 495
 496         if(hres2 == DISP_E_UNKNOWNNAME)
 497             hres2 = jsdisp_delete_idx(jsthis, k);
 498         else
 499             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei);
 500
 501         if(FAILED(hres2)) {
 502             VariantClear(&v2);
 503             return hres2;
 504         }
 505     }
 506
 507     if(retv) {
 508         jsdisp_addref(jsthis);
 509         var_set_jsdisp(retv, jsthis);
 510     }
 511
 512     return S_OK;
 513 }
 514
 515 /* ECMA-262 3rd Edition    15.4.4.9 */
 516 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 517         VARIANT *retv, jsexcept_t *ei)
 518 {
 519     jsdisp_t *jsthis;
 520     DWORD length = 0, i;
 521     VARIANT v, ret;
 522     HRESULT hres;
 523
 524     TRACE("\n");
 525
 526     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 527     if(FAILED(hres))
 528         return hres;
 529
 530     if(!length) {
 531         hres = set_length(jsthis, ei, 0);
 532         if(FAILED(hres))
 533             return hres;
 534     }
 535
 536     if(!length) {
 537         if(retv)
 538             V_VT(retv) = VT_EMPTY;
 539         return S_OK;
 540     }
 541
 542     hres = jsdisp_get_idx(jsthis, 0, &ret, ei);
 543     if(hres == DISP_E_UNKNOWNNAME) {
 544         V_VT(&ret) = VT_EMPTY;
 545         hres = S_OK;
 546     }
 547
 548     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 549         hres = jsdisp_get_idx(jsthis, i, &v, ei);
 550         if(hres == DISP_E_UNKNOWNNAME)
 551             hres = jsdisp_delete_idx(jsthis, i-1);
 552         else if(SUCCEEDED(hres))
 553             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei);
 554     }
 555
 556     if(SUCCEEDED(hres)) {
 557         hres = jsdisp_delete_idx(jsthis, length-1);
 558         if(SUCCEEDED(hres))
 559             hres = set_length(jsthis, ei, length-1);
 560     }
 561
 562     if(SUCCEEDED(hres) && retv)
 563         *retv = ret;
 564     else
 565         VariantClear(&ret);
 566     return hres;
 567 }
 568
 569 /* ECMA-262 3rd Edition    15.4.4.10 */
 570 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 571         VARIANT *retv, jsexcept_t *ei)
 572 {
 573     jsdisp_t *arr, *jsthis;
 574     DOUBLE range;
 575     DWORD length, start, end, idx;
 576     HRESULT hres;
 577
 578     TRACE("\n");
 579
 580     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 581     if(FAILED(hres))
 582         return hres;
 583
 584     if(arg_cnt(dp)) {
 585         hres = to_number(ctx, get_arg(dp, 0), ei, &range);
 586         if(FAILED(hres))
 587             return hres;
 588
 589         range = floor(range);
 590         if(-range>length || isnan(range)) start = 0;
 591         else if(range < 0) start = range+length;
 592         else if(range <= length) start = range;
 593         else start = length;
 594     }
 595     else start = 0;
 596
 597     if(arg_cnt(dp)>1) {
 598         hres = to_number(ctx, get_arg(dp, 1), ei, &range);
 599         if(FAILED(hres))
 600             return hres;
 601
 602         range = floor(range);
 603         if(-range>length) end = 0;
 604         else if(range < 0) end = range+length;
 605         else if(range <= length) end = range;
 606         else end = length;
 607     }
 608     else end = length;
 609
 610     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 611     if(FAILED(hres))
 612         return hres;
 613
 614     for(idx=start; idx<end; idx++) {
 615         VARIANT v;
 616
 617         hres = jsdisp_get_idx(jsthis, idx, &v, ei);
 618         if(hres == DISP_E_UNKNOWNNAME)
 619             continue;
 620
 621         if(SUCCEEDED(hres)) {
 622             hres = jsdisp_propput_idx(arr, idx-start, &v, ei);
 623             VariantClear(&v);
 624         }
 625
 626         if(FAILED(hres)) {
 627             jsdisp_release(arr);
 628             return hres;
 629         }
 630     }
 631
 632     if(retv)
 633         var_set_jsdisp(retv, arr);
 634     else
 635         jsdisp_release(arr);
 636
 637     return S_OK;
 638 }
 639
 640 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 641 {
 642     HRESULT hres;
 643
 644     if(cmp_func) {
 645         VARIANTARG args[2];
 646         DISPPARAMS dp = {args, NULL, 2, 0};
 647         double n;
 648         VARIANT res;
 649
 650         args[0] = *v2;
 651         args[1] = *v1;
 652
 653         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei);
 654         if(FAILED(hres))
 655             return hres;
 656
 657         hres = to_number(ctx, &res, ei, &n);
 658         VariantClear(&res);
 659         if(FAILED(hres))
 660             return hres;
 661
 662         if(n == 0)
 663             *cmp = 0;
 664         *cmp = n > 0.0 ? 1 : -1;
 665     }else if(V_VT(v1) == VT_EMPTY) {
 666         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 667     }else if(V_VT(v2) == VT_EMPTY) {
 668         *cmp = -1;
 669     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 670         DOUBLE d = num_val(v1)-num_val(v2);
 671         if(d > 0.0)
 672             *cmp = 1;
 673         else
 674             *cmp = d < -0.0 ? -1 : 0;
 675     }else {
 676         BSTR x, y;
 677
 678         hres = to_string(ctx, v1, ei, &x);
 679         if(FAILED(hres))
 680             return hres;
 681
 682         hres = to_string(ctx, v2, ei, &y);
 683         if(SUCCEEDED(hres)) {
 684             *cmp = strcmpW(x, y);
 685             SysFreeString(y);
 686         }
 687         SysFreeString(x);
 688         if(FAILED(hres))
 689             return hres;
 690     }
 691
 692     return S_OK;
 693 }
 694
 695 /* ECMA-262 3rd Edition    15.4.4.11 */
 696 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 697         VARIANT *retv, jsexcept_t *ei)
 698 {
 699     jsdisp_t *jsthis, *cmp_func = NULL;
 700     VARIANT *vtab, **sorttab = NULL;
 701     DWORD length;
 702     DWORD i;
 703     HRESULT hres = S_OK;
 704
 705     TRACE("\n");
 706
 707     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 708     if(FAILED(hres))
 709         return hres;
 710
 711     if(arg_cnt(dp) > 1) {
 712         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 713         return E_FAIL;
 714     }
 715
 716     if(arg_cnt(dp) == 1) {
 717         VARIANT *arg = get_arg(dp, 0);
 718
 719         if(V_VT(arg) != VT_DISPATCH) {
 720             WARN("arg is not dispatch\n");
 721             return E_FAIL;
 722         }
 723
 724
 725         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 726         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 727             WARN("cmp_func is not a function\n");
 728             if(cmp_func)
 729                 jsdisp_release(cmp_func);
 730             return E_FAIL;
 731         }
 732     }
 733
 734     if(!length) {
 735         if(cmp_func)
 736             jsdisp_release(cmp_func);
 737         if(retv) {
 738             jsdisp_addref(jsthis);
 739             var_set_jsdisp(retv, jsthis);
 740         }
 741         return S_OK;
 742     }
 743
 744     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 745     if(vtab) {
 746         for(i=0; i<length; i++) {
 747             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei);
 748             if(hres == DISP_E_UNKNOWNNAME) {
 749                 V_VT(vtab+i) = VT_EMPTY;
 750                 hres = S_OK;
 751             } else if(FAILED(hres)) {
 752                 WARN("Could not get elem %d: %08x\n", i, hres);
 753                 break;
 754             }
 755         }
 756     }else {
 757         hres = E_OUTOFMEMORY;
 758     }
 759
 760     if(SUCCEEDED(hres)) {
 761         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 762         if(!sorttab)
 763             hres = E_OUTOFMEMORY;
 764     }
 765
 766     /* merge-sort */
 767     if(SUCCEEDED(hres)) {
 768         VARIANT *tmpv, **tmpbuf;
 769         INT cmp;
 770
 771         tmpbuf = sorttab + length;
 772         for(i=0; i < length; i++)
 773             sorttab[i] = vtab+i;
 774
 775         for(i=0; i < length/2; i++) {
 776             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 777             if(FAILED(hres))
 778                 break;
 779
 780             if(cmp < 0) {
 781                 tmpv = sorttab[2*i];
 782                 sorttab[2*i] = sorttab[2*i+1];
 783                 sorttab[2*i+1] = tmpv;
 784             }
 785         }
 786
 787         if(SUCCEEDED(hres)) {
 788             DWORD k, a, b, bend;
 789
 790             for(k=2; k < length; k *= 2) {
 791                 for(i=0; i+k < length; i += 2*k) {
 792                     a = b = 0;
 793                     if(i+2*k <= length)
 794                         bend = k;
 795                     else
 796                         bend = length - (i+k);
 797
 798                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 799
 800                     while(a < k && b < bend) {
 801                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 802                         if(FAILED(hres))
 803                             break;
 804
 805                         if(cmp < 0) {
 806                             sorttab[i+a+b] = tmpbuf[a];
 807                             a++;
 808                         }else {
 809                             sorttab[i+a+b] = sorttab[i+k+b];
 810                             b++;
 811                         }
 812                     }
 813
 814                     if(FAILED(hres))
 815                         break;
 816
 817                     if(a < k)
 818                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 819                 }
 820
 821                 if(FAILED(hres))
 822                     break;
 823             }
 824         }
 825
 826         for(i=0; SUCCEEDED(hres) && i < length; i++)
 827             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei);
 828     }
 829
 830     if(vtab) {
 831         for(i=0; i < length; i++)
 832             VariantClear(vtab+i);
 833         heap_free(vtab);
 834     }
 835     heap_free(sorttab);
 836     if(cmp_func)
 837         jsdisp_release(cmp_func);
 838
 839     if(FAILED(hres))
 840         return hres;
 841
 842     if(retv) {
 843         jsdisp_addref(jsthis);
 844         var_set_jsdisp(retv, jsthis);
 845     }
 846
 847     return S_OK;
 848 }
 849
 850 /* ECMA-262 3rd Edition    15.4.4.12 */
 851 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 852         VARIANT *retv, jsexcept_t *ei)
 853 {
 854     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 855     jsdisp_t *ret_array = NULL, *jsthis;
 856     VARIANT v;
 857     double d;
 858     int n;
 859     HRESULT hres = S_OK;
 860
 861     TRACE("\n");
 862
 863     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 864     if(FAILED(hres))
 865         return hres;
 866
 867     argc = arg_cnt(dp);
 868     if(argc >= 1) {
 869         hres = to_integer(ctx, get_arg(dp,0), ei, &d);
 870         if(FAILED(hres))
 871             return hres;
 872
 873         if(is_int32(d)) {
 874             if((n = d) >= 0)
 875                 start = min(n, length);
 876             else
 877                 start = -n > length ? 0 : length + n;
 878         }else {
 879             start = d < 0.0 ? 0 : length;
 880         }
 881     }
 882
 883     if(argc >= 2) {
 884         hres = to_integer(ctx, get_arg(dp,1), ei, &d);
 885         if(FAILED(hres))
 886             return hres;
 887
 888         if(is_int32(d)) {
 889             if((n = d) > 0)
 890                 delete_cnt = min(n, length-start);
 891         }else if(d > 0.0) {
 892             delete_cnt = length-start;
 893         }
 894
 895         add_args = argc-2;
 896     }
 897
 898     if(retv) {
 899         hres = create_array(ctx, 0, &ret_array);
 900         if(FAILED(hres))
 901             return hres;
 902
 903         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 904             hres = jsdisp_get_idx(jsthis, start+i, &v, ei);
 905             if(hres == DISP_E_UNKNOWNNAME)
 906                 hres = S_OK;
 907             else if(SUCCEEDED(hres))
 908                 hres = jsdisp_propput_idx(ret_array, i, &v, ei);
 909         }
 910
 911         if(SUCCEEDED(hres)) {
 912             V_VT(&v) = VT_I4;
 913             V_I4(&v) = delete_cnt;
 914
 915             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 916         }
 917     }
 918
 919     if(add_args < delete_cnt) {
 920         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 921             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei);
 922             if(hres == DISP_E_UNKNOWNNAME)
 923                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 924             else if(SUCCEEDED(hres))
 925                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei);
 926         }
 927
 928         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 929             hres = jsdisp_delete_idx(jsthis, i-1);
 930     }else if(add_args > delete_cnt) {
 931         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 932             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei);
 933             if(hres == DISP_E_UNKNOWNNAME)
 934                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 935             else if(SUCCEEDED(hres))
 936                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei);
 937         }
 938     }
 939
 940     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 941         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei);
 942
 943     if(SUCCEEDED(hres)) {
 944         V_VT(&v) = VT_I4;
 945         V_I4(&v) = length-delete_cnt+add_args;
 946         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 947     }
 948
 949     if(FAILED(hres)) {
 950         if(ret_array)
 951             jsdisp_release(ret_array);
 952         return hres;
 953     }
 954
 955     if(retv)
 956         var_set_jsdisp(retv, ret_array);
 957     return S_OK;
 958 }
 959
 960 /* ECMA-262 3rd Edition    15.4.4.2 */
 961 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 962         VARIANT *retv, jsexcept_t *ei)
 963 {
 964     ArrayInstance *array;
 965
 966     TRACE("\n");
 967
 968     array = array_this(jsthis);
 969     if(!array)
 970         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 971
 972     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei);
 973 }
 974
 975 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 976         VARIANT *retv, jsexcept_t *ei)
 977 {
 978     FIXME("\n");
 979     return E_NOTIMPL;
 980 }
 981
 982 /* ECMA-262 3rd Edition    15.4.4.13 */
 983 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 984         VARIANT *retv, jsexcept_t *ei)
 985 {
 986     jsdisp_t *jsthis;
 987     WCHAR buf[14], *buf_end, *str;
 988     DWORD argc, i, length;
 989     VARIANT var;
 990     DISPID id;
 991     HRESULT hres;
 992
 993     TRACE("\n");
 994
 995     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 996     if(FAILED(hres))
 997         return hres;
 998
 999     argc = arg_cnt(dp);
1000     if(argc) {
1001         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1002         *buf_end-- = 0;
1003         i = length;
1004
1005         while(i--) {
1006             str = idx_to_str(i, buf_end);
1007
1008             hres = jsdisp_get_id(jsthis, str, 0, &id);
1009             if(SUCCEEDED(hres)) {
1010                 hres = jsdisp_propget(jsthis, id, &var, ei);
1011                 if(FAILED(hres))
1012                     return hres;
1013
1014                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei);
1015                 VariantClear(&var);
1016             }else if(hres == DISP_E_UNKNOWNNAME) {
1017                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1018             }
1019         }
1020
1021         if(FAILED(hres))
1022             return hres;
1023     }
1024
1025     for(i=0; i<argc; i++) {
1026         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei);
1027         if(FAILED(hres))
1028             return hres;
1029     }
1030
1031     if(argc) {
1032         length += argc;
1033         hres = set_length(jsthis, ei, length);
1034         if(FAILED(hres))
1035             return hres;
1036     }
1037
1038     if(retv) {
1039         if(ctx->version < 2) {
1040             V_VT(retv) = VT_EMPTY;
1041         }else {
1042             V_VT(retv) = VT_I4;
1043             V_I4(retv) = length;
1044         }
1045     }
1046     return S_OK;
1047 }
1048
1049 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1050         VARIANT *retv, jsexcept_t *ei)
1051 {
1052     TRACE("\n");
1053
1054     switch(flags) {
1055     case INVOKE_FUNC:
1056         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1057     case INVOKE_PROPERTYGET:
1058         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei);
1059     default:
1060         FIXME("unimplemented flags %x\n", flags);
1061         return E_NOTIMPL;
1062     }
1063
1064     return S_OK;
1065 }
1066
1067 static void Array_destructor(jsdisp_t *dispex)
1068 {
1069     heap_free(dispex);
1070 }
1071
1072 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1073 {
1074     ArrayInstance *array = (ArrayInstance*)dispex;
1075     const WCHAR *ptr = name;
1076     DWORD id = 0;
1077
1078     if(!isdigitW(*ptr))
1079         return;
1080
1081     while(*ptr && isdigitW(*ptr)) {
1082         id = id*10 + (*ptr-'0');
1083         ptr++;
1084     }
1085
1086     if(*ptr)
1087         return;
1088
1089     if(id >= array->length)
1090         array->length = id+1;
1091 }
1092
1093 static const builtin_prop_t Array_props[] = {
1094     {concatW,                Array_concat,               PROPF_METHOD|1},
1095     {joinW,                  Array_join,                 PROPF_METHOD|1},
1096     {lengthW,                Array_length,               0},
1097     {popW,                   Array_pop,                  PROPF_METHOD},
1098     {pushW,                  Array_push,                 PROPF_METHOD|1},
1099     {reverseW,               Array_reverse,              PROPF_METHOD},
1100     {shiftW,                 Array_shift,                PROPF_METHOD},
1101     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1102     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1103     {spliceW,                Array_splice,               PROPF_METHOD|2},
1104     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1105     {toStringW,              Array_toString,             PROPF_METHOD},
1106     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1107 };
1108
1109 static const builtin_info_t Array_info = {
1110     JSCLASS_ARRAY,
1111     {NULL, Array_value, 0},
1112     sizeof(Array_props)/sizeof(*Array_props),
1113     Array_props,
1114     Array_destructor,
1115     Array_on_put
1116 };
1117
1118 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1119         VARIANT *retv, jsexcept_t *ei)
1120 {
1121     jsdisp_t *obj;
1122     VARIANT *arg_var;
1123     DWORD i;
1124     HRESULT hres;
1125
1126     TRACE("\n");
1127
1128     switch(flags) {
1129     case DISPATCH_METHOD:
1130     case DISPATCH_CONSTRUCT: {
1131         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1132             if(V_I4(arg_var) < 0)
1133                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1134
1135             hres = create_array(ctx, V_I4(arg_var), &obj);
1136             if(FAILED(hres))
1137                 return hres;
1138
1139             var_set_jsdisp(retv, obj);
1140             return S_OK;
1141         }
1142
1143         hres = create_array(ctx, arg_cnt(dp), &obj);
1144         if(FAILED(hres))
1145             return hres;
1146
1147         for(i=0; i < arg_cnt(dp); i++) {
1148             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei);
1149             if(FAILED(hres))
1150                 break;
1151         }
1152         if(FAILED(hres)) {
1153             jsdisp_release(obj);
1154             return hres;
1155         }
1156
1157         var_set_jsdisp(retv, obj);
1158         break;
1159     }
1160     default:
1161         FIXME("unimplemented flags: %x\n", flags);
1162         return E_NOTIMPL;
1163     }
1164
1165     return S_OK;
1166 }
1167
1168 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1169 {
1170     ArrayInstance *array;
1171     HRESULT hres;
1172
1173     array = heap_alloc_zero(sizeof(ArrayInstance));
1174     if(!array)
1175         return E_OUTOFMEMORY;
1176
1177     if(object_prototype)
1178         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1179     else
1180         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1181
1182     if(FAILED(hres)) {
1183         heap_free(array);
1184         return hres;
1185     }
1186
1187     *ret = array;
1188     return S_OK;
1189 }
1190
1191 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1192 {
1193     ArrayInstance *array;
1194     HRESULT hres;
1195
1196     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1197
1198     hres = alloc_array(ctx, object_prototype, &array);
1199     if(FAILED(hres))
1200         return hres;
1201
1202     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1203
1204     jsdisp_release(&array->dispex);
1205     return hres;
1206 }
1207
1208 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1209 {
1210     ArrayInstance *array;
1211     HRESULT hres;
1212
1213     hres = alloc_array(ctx, NULL, &array);
1214     if(FAILED(hres))
1215         return hres;
1216
1217     array->length = length;
1218
1219     *ret = &array->dispex;
1220     return S_OK;
1221 }