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, DISPPARAMS *dp,
 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, get_arg(dp, 0), 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, DISPPARAMS *dp,
 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 < arg_cnt(dp); i++) {
 223             arg = get_arg(dp, 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, DISPPARAMS *dp,
 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(arg_cnt(dp)) {
 357         BSTR sep;
 358
 359         hres = to_string(ctx, get_arg(dp,0), 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, DISPPARAMS *dp,
 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, DISPPARAMS *dp,
 425         VARIANT *retv, jsexcept_t *ei)
 426 {
 427     jsdisp_t *jsthis;
 428     DWORD length = 0;
 429     int i, n;
 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     n = arg_cnt(dp);
 439     for(i=0; i < n; i++) {
 440         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei);
 441         if(FAILED(hres))
 442             return hres;
 443     }
 444
 445     hres = set_length(jsthis, ei, length+n);
 446     if(FAILED(hres))
 447         return hres;
 448
 449     if(retv)
 450         num_set_int(retv, length+n);
 451     return S_OK;
 452 }
 453
 454 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 455         VARIANT *retv, jsexcept_t *ei)
 456 {
 457     jsdisp_t *jsthis;
 458     DWORD length, k, l;
 459     VARIANT v1, v2;
 460     HRESULT hres1, hres2;
 461
 462     TRACE("\n");
 463
 464     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 465     if(FAILED(hres1))
 466         return hres1;
 467
 468     for(k=0; k<length/2; k++) {
 469         l = length-k-1;
 470
 471         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei);
 472         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 473             return hres1;
 474
 475         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei);
 476         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 477             VariantClear(&v1);
 478             return hres2;
 479         }
 480
 481         if(hres1 == DISP_E_UNKNOWNNAME)
 482             hres1 = jsdisp_delete_idx(jsthis, l);
 483         else
 484             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei);
 485
 486         if(FAILED(hres1)) {
 487             VariantClear(&v1);
 488             VariantClear(&v2);
 489             return hres1;
 490         }
 491
 492         if(hres2 == DISP_E_UNKNOWNNAME)
 493             hres2 = jsdisp_delete_idx(jsthis, k);
 494         else
 495             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei);
 496
 497         if(FAILED(hres2)) {
 498             VariantClear(&v2);
 499             return hres2;
 500         }
 501     }
 502
 503     if(retv) {
 504         jsdisp_addref(jsthis);
 505         var_set_jsdisp(retv, jsthis);
 506     }
 507
 508     return S_OK;
 509 }
 510
 511 /* ECMA-262 3rd Edition    15.4.4.9 */
 512 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 513         VARIANT *retv, jsexcept_t *ei)
 514 {
 515     jsdisp_t *jsthis;
 516     DWORD length = 0, i;
 517     VARIANT v, ret;
 518     HRESULT hres;
 519
 520     TRACE("\n");
 521
 522     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 523     if(FAILED(hres))
 524         return hres;
 525
 526     if(!length) {
 527         hres = set_length(jsthis, ei, 0);
 528         if(FAILED(hres))
 529             return hres;
 530     }
 531
 532     if(!length) {
 533         if(retv)
 534             V_VT(retv) = VT_EMPTY;
 535         return S_OK;
 536     }
 537
 538     hres = jsdisp_get_idx(jsthis, 0, &ret, ei);
 539     if(hres == DISP_E_UNKNOWNNAME) {
 540         V_VT(&ret) = VT_EMPTY;
 541         hres = S_OK;
 542     }
 543
 544     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 545         hres = jsdisp_get_idx(jsthis, i, &v, ei);
 546         if(hres == DISP_E_UNKNOWNNAME)
 547             hres = jsdisp_delete_idx(jsthis, i-1);
 548         else if(SUCCEEDED(hres))
 549             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei);
 550     }
 551
 552     if(SUCCEEDED(hres)) {
 553         hres = jsdisp_delete_idx(jsthis, length-1);
 554         if(SUCCEEDED(hres))
 555             hres = set_length(jsthis, ei, length-1);
 556     }
 557
 558     if(SUCCEEDED(hres) && retv)
 559         *retv = ret;
 560     else
 561         VariantClear(&ret);
 562     return hres;
 563 }
 564
 565 /* ECMA-262 3rd Edition    15.4.4.10 */
 566 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 567         VARIANT *retv, jsexcept_t *ei)
 568 {
 569     jsdisp_t *arr, *jsthis;
 570     DOUBLE range;
 571     DWORD length, start, end, idx;
 572     HRESULT hres;
 573
 574     TRACE("\n");
 575
 576     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 577     if(FAILED(hres))
 578         return hres;
 579
 580     if(arg_cnt(dp)) {
 581         hres = to_number(ctx, get_arg(dp, 0), ei, &range);
 582         if(FAILED(hres))
 583             return hres;
 584
 585         range = floor(range);
 586         if(-range>length || isnan(range)) start = 0;
 587         else if(range < 0) start = range+length;
 588         else if(range <= length) start = range;
 589         else start = length;
 590     }
 591     else start = 0;
 592
 593     if(arg_cnt(dp)>1) {
 594         hres = to_number(ctx, get_arg(dp, 1), ei, &range);
 595         if(FAILED(hres))
 596             return hres;
 597
 598         range = floor(range);
 599         if(-range>length) end = 0;
 600         else if(range < 0) end = range+length;
 601         else if(range <= length) end = range;
 602         else end = length;
 603     }
 604     else end = length;
 605
 606     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 607     if(FAILED(hres))
 608         return hres;
 609
 610     for(idx=start; idx<end; idx++) {
 611         VARIANT v;
 612
 613         hres = jsdisp_get_idx(jsthis, idx, &v, ei);
 614         if(hres == DISP_E_UNKNOWNNAME)
 615             continue;
 616
 617         if(SUCCEEDED(hres)) {
 618             hres = jsdisp_propput_idx(arr, idx-start, &v, ei);
 619             VariantClear(&v);
 620         }
 621
 622         if(FAILED(hres)) {
 623             jsdisp_release(arr);
 624             return hres;
 625         }
 626     }
 627
 628     if(retv)
 629         var_set_jsdisp(retv, arr);
 630     else
 631         jsdisp_release(arr);
 632
 633     return S_OK;
 634 }
 635
 636 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 637 {
 638     HRESULT hres;
 639
 640     if(cmp_func) {
 641         VARIANTARG args[2];
 642         DISPPARAMS dp = {args, NULL, 2, 0};
 643         double n;
 644         VARIANT res;
 645
 646         args[0] = *v2;
 647         args[1] = *v1;
 648
 649         hres = jsdisp_call_value(cmp_func, NULL, DISPATCH_METHOD, &dp, &res, ei);
 650         if(FAILED(hres))
 651             return hres;
 652
 653         hres = to_number(ctx, &res, ei, &n);
 654         VariantClear(&res);
 655         if(FAILED(hres))
 656             return hres;
 657
 658         if(n == 0)
 659             *cmp = 0;
 660         *cmp = n > 0.0 ? 1 : -1;
 661     }else if(V_VT(v1) == VT_EMPTY) {
 662         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 663     }else if(V_VT(v2) == VT_EMPTY) {
 664         *cmp = -1;
 665     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 666         DOUBLE d = num_val(v1)-num_val(v2);
 667         if(d > 0.0)
 668             *cmp = 1;
 669         else
 670             *cmp = d < -0.0 ? -1 : 0;
 671     }else {
 672         BSTR x, y;
 673
 674         hres = to_string(ctx, v1, ei, &x);
 675         if(FAILED(hres))
 676             return hres;
 677
 678         hres = to_string(ctx, v2, ei, &y);
 679         if(SUCCEEDED(hres)) {
 680             *cmp = strcmpW(x, y);
 681             SysFreeString(y);
 682         }
 683         SysFreeString(x);
 684         if(FAILED(hres))
 685             return hres;
 686     }
 687
 688     return S_OK;
 689 }
 690
 691 /* ECMA-262 3rd Edition    15.4.4.11 */
 692 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 693         VARIANT *retv, jsexcept_t *ei)
 694 {
 695     jsdisp_t *jsthis, *cmp_func = NULL;
 696     VARIANT *vtab, **sorttab = NULL;
 697     DWORD length;
 698     DWORD i;
 699     HRESULT hres = S_OK;
 700
 701     TRACE("\n");
 702
 703     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 704     if(FAILED(hres))
 705         return hres;
 706
 707     if(arg_cnt(dp) > 1) {
 708         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 709         return E_FAIL;
 710     }
 711
 712     if(arg_cnt(dp) == 1) {
 713         VARIANT *arg = get_arg(dp, 0);
 714
 715         if(V_VT(arg) != VT_DISPATCH) {
 716             WARN("arg is not dispatch\n");
 717             return E_FAIL;
 718         }
 719
 720
 721         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 722         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 723             WARN("cmp_func is not a function\n");
 724             if(cmp_func)
 725                 jsdisp_release(cmp_func);
 726             return E_FAIL;
 727         }
 728     }
 729
 730     if(!length) {
 731         if(cmp_func)
 732             jsdisp_release(cmp_func);
 733         if(retv) {
 734             jsdisp_addref(jsthis);
 735             var_set_jsdisp(retv, jsthis);
 736         }
 737         return S_OK;
 738     }
 739
 740     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 741     if(vtab) {
 742         for(i=0; i<length; i++) {
 743             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei);
 744             if(hres == DISP_E_UNKNOWNNAME) {
 745                 V_VT(vtab+i) = VT_EMPTY;
 746                 hres = S_OK;
 747             } else if(FAILED(hres)) {
 748                 WARN("Could not get elem %d: %08x\n", i, hres);
 749                 break;
 750             }
 751         }
 752     }else {
 753         hres = E_OUTOFMEMORY;
 754     }
 755
 756     if(SUCCEEDED(hres)) {
 757         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 758         if(!sorttab)
 759             hres = E_OUTOFMEMORY;
 760     }
 761
 762     /* merge-sort */
 763     if(SUCCEEDED(hres)) {
 764         VARIANT *tmpv, **tmpbuf;
 765         INT cmp;
 766
 767         tmpbuf = sorttab + length;
 768         for(i=0; i < length; i++)
 769             sorttab[i] = vtab+i;
 770
 771         for(i=0; i < length/2; i++) {
 772             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 773             if(FAILED(hres))
 774                 break;
 775
 776             if(cmp < 0) {
 777                 tmpv = sorttab[2*i];
 778                 sorttab[2*i] = sorttab[2*i+1];
 779                 sorttab[2*i+1] = tmpv;
 780             }
 781         }
 782
 783         if(SUCCEEDED(hres)) {
 784             DWORD k, a, b, bend;
 785
 786             for(k=2; k < length; k *= 2) {
 787                 for(i=0; i+k < length; i += 2*k) {
 788                     a = b = 0;
 789                     if(i+2*k <= length)
 790                         bend = k;
 791                     else
 792                         bend = length - (i+k);
 793
 794                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 795
 796                     while(a < k && b < bend) {
 797                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 798                         if(FAILED(hres))
 799                             break;
 800
 801                         if(cmp < 0) {
 802                             sorttab[i+a+b] = tmpbuf[a];
 803                             a++;
 804                         }else {
 805                             sorttab[i+a+b] = sorttab[i+k+b];
 806                             b++;
 807                         }
 808                     }
 809
 810                     if(FAILED(hres))
 811                         break;
 812
 813                     if(a < k)
 814                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 815                 }
 816
 817                 if(FAILED(hres))
 818                     break;
 819             }
 820         }
 821
 822         for(i=0; SUCCEEDED(hres) && i < length; i++)
 823             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei);
 824     }
 825
 826     if(vtab) {
 827         for(i=0; i < length; i++)
 828             VariantClear(vtab+i);
 829         heap_free(vtab);
 830     }
 831     heap_free(sorttab);
 832     if(cmp_func)
 833         jsdisp_release(cmp_func);
 834
 835     if(FAILED(hres))
 836         return hres;
 837
 838     if(retv) {
 839         jsdisp_addref(jsthis);
 840         var_set_jsdisp(retv, jsthis);
 841     }
 842
 843     return S_OK;
 844 }
 845
 846 /* ECMA-262 3rd Edition    15.4.4.12 */
 847 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 848         VARIANT *retv, jsexcept_t *ei)
 849 {
 850     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 851     jsdisp_t *ret_array = NULL, *jsthis;
 852     VARIANT v;
 853     double d;
 854     int n;
 855     HRESULT hres = S_OK;
 856
 857     TRACE("\n");
 858
 859     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 860     if(FAILED(hres))
 861         return hres;
 862
 863     argc = arg_cnt(dp);
 864     if(argc >= 1) {
 865         hres = to_integer(ctx, get_arg(dp,0), ei, &d);
 866         if(FAILED(hres))
 867             return hres;
 868
 869         if(is_int32(d)) {
 870             if((n = d) >= 0)
 871                 start = min(n, length);
 872             else
 873                 start = -n > length ? 0 : length + n;
 874         }else {
 875             start = d < 0.0 ? 0 : length;
 876         }
 877     }
 878
 879     if(argc >= 2) {
 880         hres = to_integer(ctx, get_arg(dp,1), ei, &d);
 881         if(FAILED(hres))
 882             return hres;
 883
 884         if(is_int32(d)) {
 885             if((n = d) > 0)
 886                 delete_cnt = min(n, length-start);
 887         }else if(d > 0.0) {
 888             delete_cnt = length-start;
 889         }
 890
 891         add_args = argc-2;
 892     }
 893
 894     if(retv) {
 895         hres = create_array(ctx, 0, &ret_array);
 896         if(FAILED(hres))
 897             return hres;
 898
 899         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 900             hres = jsdisp_get_idx(jsthis, start+i, &v, ei);
 901             if(hres == DISP_E_UNKNOWNNAME)
 902                 hres = S_OK;
 903             else if(SUCCEEDED(hres))
 904                 hres = jsdisp_propput_idx(ret_array, i, &v, ei);
 905         }
 906
 907         if(SUCCEEDED(hres)) {
 908             num_set_int(&v, delete_cnt);
 909             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 910         }
 911     }
 912
 913     if(add_args < delete_cnt) {
 914         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 915             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei);
 916             if(hres == DISP_E_UNKNOWNNAME)
 917                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 918             else if(SUCCEEDED(hres))
 919                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei);
 920         }
 921
 922         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 923             hres = jsdisp_delete_idx(jsthis, i-1);
 924     }else if(add_args > delete_cnt) {
 925         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 926             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei);
 927             if(hres == DISP_E_UNKNOWNNAME)
 928                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 929             else if(SUCCEEDED(hres))
 930                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei);
 931         }
 932     }
 933
 934     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 935         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei);
 936
 937     if(SUCCEEDED(hres)) {
 938         num_set_int(&v, length-delete_cnt+add_args);
 939         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 940     }
 941
 942     if(FAILED(hres)) {
 943         if(ret_array)
 944             jsdisp_release(ret_array);
 945         return hres;
 946     }
 947
 948     if(retv)
 949         var_set_jsdisp(retv, ret_array);
 950     return S_OK;
 951 }
 952
 953 /* ECMA-262 3rd Edition    15.4.4.2 */
 954 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 955         VARIANT *retv, jsexcept_t *ei)
 956 {
 957     ArrayInstance *array;
 958
 959     TRACE("\n");
 960
 961     array = array_this(jsthis);
 962     if(!array)
 963         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 964
 965     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei);
 966 }
 967
 968 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 969         VARIANT *retv, jsexcept_t *ei)
 970 {
 971     FIXME("\n");
 972     return E_NOTIMPL;
 973 }
 974
 975 /* ECMA-262 3rd Edition    15.4.4.13 */
 976 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 977         VARIANT *retv, jsexcept_t *ei)
 978 {
 979     jsdisp_t *jsthis;
 980     WCHAR buf[14], *buf_end, *str;
 981     DWORD argc, i, length;
 982     VARIANT var;
 983     DISPID id;
 984     HRESULT hres;
 985
 986     TRACE("\n");
 987
 988     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 989     if(FAILED(hres))
 990         return hres;
 991
 992     argc = arg_cnt(dp);
 993     if(argc) {
 994         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 995         *buf_end-- = 0;
 996         i = length;
 997
 998         while(i--) {
 999             str = idx_to_str(i, buf_end);
1000
1001             hres = jsdisp_get_id(jsthis, str, 0, &id);
1002             if(SUCCEEDED(hres)) {
1003                 hres = jsdisp_propget(jsthis, id, &var, ei);
1004                 if(FAILED(hres))
1005                     return hres;
1006
1007                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei);
1008                 VariantClear(&var);
1009             }else if(hres == DISP_E_UNKNOWNNAME) {
1010                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1011             }
1012         }
1013
1014         if(FAILED(hres))
1015             return hres;
1016     }
1017
1018     for(i=0; i<argc; i++) {
1019         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei);
1020         if(FAILED(hres))
1021             return hres;
1022     }
1023
1024     if(argc) {
1025         length += argc;
1026         hres = set_length(jsthis, ei, length);
1027         if(FAILED(hres))
1028             return hres;
1029     }
1030
1031     if(retv) {
1032         if(ctx->version < 2)
1033             V_VT(retv) = VT_EMPTY;
1034         else
1035             num_set_int(retv, length);
1036     }
1037     return S_OK;
1038 }
1039
1040 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1041         VARIANT *retv, jsexcept_t *ei)
1042 {
1043     TRACE("\n");
1044
1045     switch(flags) {
1046     case INVOKE_FUNC:
1047         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1048     case INVOKE_PROPERTYGET:
1049         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei);
1050     default:
1051         FIXME("unimplemented flags %x\n", flags);
1052         return E_NOTIMPL;
1053     }
1054
1055     return S_OK;
1056 }
1057
1058 static void Array_destructor(jsdisp_t *dispex)
1059 {
1060     heap_free(dispex);
1061 }
1062
1063 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1064 {
1065     ArrayInstance *array = (ArrayInstance*)dispex;
1066     const WCHAR *ptr = name;
1067     DWORD id = 0;
1068
1069     if(!isdigitW(*ptr))
1070         return;
1071
1072     while(*ptr && isdigitW(*ptr)) {
1073         id = id*10 + (*ptr-'0');
1074         ptr++;
1075     }
1076
1077     if(*ptr)
1078         return;
1079
1080     if(id >= array->length)
1081         array->length = id+1;
1082 }
1083
1084 static const builtin_prop_t Array_props[] = {
1085     {concatW,                Array_concat,               PROPF_METHOD|1},
1086     {joinW,                  Array_join,                 PROPF_METHOD|1},
1087     {lengthW,                Array_length,               0},
1088     {popW,                   Array_pop,                  PROPF_METHOD},
1089     {pushW,                  Array_push,                 PROPF_METHOD|1},
1090     {reverseW,               Array_reverse,              PROPF_METHOD},
1091     {shiftW,                 Array_shift,                PROPF_METHOD},
1092     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1093     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1094     {spliceW,                Array_splice,               PROPF_METHOD|2},
1095     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1096     {toStringW,              Array_toString,             PROPF_METHOD},
1097     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1098 };
1099
1100 static const builtin_info_t Array_info = {
1101     JSCLASS_ARRAY,
1102     {NULL, Array_value, 0},
1103     sizeof(Array_props)/sizeof(*Array_props),
1104     Array_props,
1105     Array_destructor,
1106     Array_on_put
1107 };
1108
1109 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1110         VARIANT *retv, jsexcept_t *ei)
1111 {
1112     jsdisp_t *obj;
1113     VARIANT *arg_var;
1114     DWORD i;
1115     HRESULT hres;
1116
1117     TRACE("\n");
1118
1119     switch(flags) {
1120     case DISPATCH_METHOD:
1121     case DISPATCH_CONSTRUCT: {
1122         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1123             if(V_I4(arg_var) < 0)
1124                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1125
1126             hres = create_array(ctx, V_I4(arg_var), &obj);
1127             if(FAILED(hres))
1128                 return hres;
1129
1130             var_set_jsdisp(retv, obj);
1131             return S_OK;
1132         }
1133
1134         hres = create_array(ctx, arg_cnt(dp), &obj);
1135         if(FAILED(hres))
1136             return hres;
1137
1138         for(i=0; i < arg_cnt(dp); i++) {
1139             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei);
1140             if(FAILED(hres))
1141                 break;
1142         }
1143         if(FAILED(hres)) {
1144             jsdisp_release(obj);
1145             return hres;
1146         }
1147
1148         var_set_jsdisp(retv, obj);
1149         break;
1150     }
1151     default:
1152         FIXME("unimplemented flags: %x\n", flags);
1153         return E_NOTIMPL;
1154     }
1155
1156     return S_OK;
1157 }
1158
1159 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1160 {
1161     ArrayInstance *array;
1162     HRESULT hres;
1163
1164     array = heap_alloc_zero(sizeof(ArrayInstance));
1165     if(!array)
1166         return E_OUTOFMEMORY;
1167
1168     if(object_prototype)
1169         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1170     else
1171         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1172
1173     if(FAILED(hres)) {
1174         heap_free(array);
1175         return hres;
1176     }
1177
1178     *ret = array;
1179     return S_OK;
1180 }
1181
1182 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1183 {
1184     ArrayInstance *array;
1185     HRESULT hres;
1186
1187     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1188
1189     hres = alloc_array(ctx, object_prototype, &array);
1190     if(FAILED(hres))
1191         return hres;
1192
1193     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1194
1195     jsdisp_release(&array->dispex);
1196     return hres;
1197 }
1198
1199 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1200 {
1201     ArrayInstance *array;
1202     HRESULT hres;
1203
1204     hres = alloc_array(ctx, NULL, &array);
1205     if(FAILED(hres))
1206         return hres;
1207
1208     array->length = length;
1209
1210     *ret = &array->dispex;
1211     return S_OK;
1212 }