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 <math.h>
  20
  21 #include "jscript.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  26
  27 typedef struct {
  28     jsdisp_t dispex;
  29
  30     DWORD length;
  31 } ArrayInstance;
  32
  33 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  34 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  35 static const WCHAR joinW[] = {'j','o','i','n',0};
  36 static const WCHAR popW[] = {'p','o','p',0};
  37 static const WCHAR pushW[] = {'p','u','s','h',0};
  38 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  39 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  40 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  41 static const WCHAR sortW[] = {'s','o','r','t',0};
  42 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  43 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  44 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  45 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  46
  47 static const WCHAR default_separatorW[] = {',',0};
  48
  49 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  50 {
  51     return (ArrayInstance*)vdisp->u.jsdisp;
  52 }
  53
  54 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  55 {
  56     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  57 }
  58
  59 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsexcept_t *ei, jsdisp_t **jsthis, DWORD *ret)
  60 {
  61     ArrayInstance *array;
  62     VARIANT var;
  63     HRESULT hres;
  64
  65     array = array_this(vdisp);
  66     if(array) {
  67         *jsthis = &array->dispex;
  68         *ret = array->length;
  69         return S_OK;
  70     }
  71
  72     if(!is_jsdisp(vdisp))
  73         return throw_type_error(ctx, ei, JS_E_JSCRIPT_EXPECTED, NULL);
  74
  75     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &var, ei);
  76     if(FAILED(hres))
  77         return hres;
  78
  79     hres = to_uint32(ctx, &var, ei, ret);
  80     VariantClear(&var);
  81     if(FAILED(hres))
  82         return hres;
  83
  84     *jsthis = vdisp->u.jsdisp;
  85     return S_OK;
  86 }
  87
  88 static HRESULT set_length(jsdisp_t *obj, jsexcept_t *ei, DWORD length)
  89 {
  90     VARIANT var;
  91
  92     if(is_class(obj, JSCLASS_ARRAY)) {
  93         ((ArrayInstance*)obj)->length = length;
  94         return S_OK;
  95     }
  96
  97     V_VT(&var) = VT_I4;
  98     V_I4(&var) = length;
  99     return jsdisp_propput_name(obj, lengthW, &var, ei);
 100 }
 101
 102 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 103 {
 104     if(!idx) {
 105         *ptr = '0';
 106         return ptr;
 107     }
 108
 109     while(idx) {
 110         *ptr-- = '0' + (idx%10);
 111         idx /= 10;
 112     }
 113
 114     return ptr+1;
 115 }
 116
 117 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 118         VARIANT *retv, jsexcept_t *ei)
 119 {
 120     ArrayInstance *This = array_from_vdisp(jsthis);
 121
 122     TRACE("%p %d\n", This, This->length);
 123
 124     switch(flags) {
 125     case DISPATCH_PROPERTYGET:
 126         V_VT(retv) = VT_I4;
 127         V_I4(retv) = This->length;
 128         break;
 129     case DISPATCH_PROPERTYPUT: {
 130         VARIANT num;
 131         DOUBLE len = -1;
 132         DWORD i;
 133         HRESULT hres;
 134
 135         hres = to_number(ctx, get_arg(dp, 0), ei, &num);
 136         if(FAILED(hres))
 137             return hres;
 138
 139         if(V_VT(&num) == VT_I4)
 140             len = V_I4(&num);
 141         else
 142             len = floor(V_R8(&num));
 143
 144         if(len!=(DWORD)len)
 145             return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
 146
 147         for(i=len; i<This->length; i++) {
 148             hres = jsdisp_delete_idx(&This->dispex, i);
 149             if(FAILED(hres))
 150                 return hres;
 151         }
 152
 153         This->length = len;
 154         break;
 155     }
 156     default:
 157         FIXME("unimplemented flags %x\n", flags);
 158         return E_NOTIMPL;
 159     }
 160
 161     return S_OK;
 162 }
 163
 164 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len, jsexcept_t *ei)
 165 {
 166     VARIANT var;
 167     DWORD i;
 168     HRESULT hres;
 169
 170     for(i=0; i < obj->length; i++) {
 171         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei);
 172         if(hres == DISP_E_UNKNOWNNAME)
 173             continue;
 174         if(FAILED(hres))
 175             return hres;
 176
 177         hres = jsdisp_propput_idx(array, *len+i, &var, ei);
 178         VariantClear(&var);
 179         if(FAILED(hres))
 180             return hres;
 181     }
 182
 183     *len += obj->length;
 184     return S_OK;
 185 }
 186
 187 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei)
 188 {
 189     jsdisp_t *jsobj;
 190     VARIANT var;
 191     HRESULT hres;
 192
 193     jsobj = iface_to_jsdisp((IUnknown*)obj);
 194     if(jsobj) {
 195         if(is_class(jsobj, JSCLASS_ARRAY)) {
 196             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei);
 197             jsdisp_release(jsobj);
 198             return hres;
 199         }
 200         jsdisp_release(jsobj);
 201     }
 202
 203     V_VT(&var) = VT_DISPATCH;
 204     V_DISPATCH(&var) = obj;
 205     return jsdisp_propput_idx(array, (*len)++, &var, ei);
 206 }
 207
 208 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 209         VARIANT *retv, jsexcept_t *ei)
 210 {
 211     jsdisp_t *ret;
 212     DWORD len = 0;
 213     HRESULT hres;
 214
 215     TRACE("\n");
 216
 217     hres = create_array(ctx, 0, &ret);
 218     if(FAILED(hres))
 219         return hres;
 220
 221     hres = concat_obj(ret, jsthis->u.disp, &len, ei);
 222     if(SUCCEEDED(hres)) {
 223         VARIANT *arg;
 224         DWORD i;
 225
 226         for(i=0; i < arg_cnt(dp); i++) {
 227             arg = get_arg(dp, i);
 228             if(V_VT(arg) == VT_DISPATCH)
 229                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei);
 230             else
 231                 hres = jsdisp_propput_idx(ret, len++, arg, ei);
 232             if(FAILED(hres))
 233                 break;
 234         }
 235     }
 236
 237     if(FAILED(hres))
 238         return hres;
 239
 240     if(retv)
 241         var_set_jsdisp(retv, ret);
 242     else
 243         jsdisp_release(ret);
 244     return S_OK;
 245 }
 246
 247 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv, jsexcept_t *ei)
 248 {
 249     BSTR *str_tab, ret = NULL;
 250     VARIANT var;
 251     DWORD i;
 252     HRESULT hres = E_FAIL;
 253
 254     if(!length) {
 255         if(retv) {
 256             V_VT(retv) = VT_BSTR;
 257             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 258             if(!V_BSTR(retv))
 259                 return E_OUTOFMEMORY;
 260         }
 261         return S_OK;
 262     }
 263
 264     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 265     if(!str_tab)
 266         return E_OUTOFMEMORY;
 267
 268     for(i=0; i < length; i++) {
 269         hres = jsdisp_get_idx(array, i, &var, ei);
 270         if(hres == DISP_E_UNKNOWNNAME) {
 271             hres = S_OK;
 272             continue;
 273         } else if(FAILED(hres))
 274             break;
 275
 276         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 277             hres = to_string(ctx, &var, ei, str_tab+i);
 278         VariantClear(&var);
 279         if(FAILED(hres))
 280             break;
 281     }
 282
 283     if(SUCCEEDED(hres)) {
 284         DWORD seplen = 0, len = 0;
 285         WCHAR *ptr;
 286
 287         seplen = strlenW(sep);
 288
 289         if(str_tab[0])
 290             len = SysStringLen(str_tab[0]);
 291         for(i=1; i < length; i++)
 292             len += seplen + SysStringLen(str_tab[i]);
 293
 294         ret = SysAllocStringLen(NULL, len);
 295         if(ret) {
 296             DWORD tmplen = 0;
 297
 298             if(str_tab[0]) {
 299                 tmplen = SysStringLen(str_tab[0]);
 300                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 301             }
 302
 303             ptr = ret + tmplen;
 304             for(i=1; i < length; i++) {
 305                 if(seplen) {
 306                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 307                     ptr += seplen;
 308                 }
 309
 310                 if(str_tab[i]) {
 311                     tmplen = SysStringLen(str_tab[i]);
 312                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 313                     ptr += tmplen;
 314                 }
 315             }
 316             *ptr=0;
 317         }else {
 318             hres = E_OUTOFMEMORY;
 319         }
 320     }
 321
 322     for(i=0; i < length; i++)
 323         SysFreeString(str_tab[i]);
 324     heap_free(str_tab);
 325     if(FAILED(hres))
 326         return hres;
 327
 328     TRACE("= %s\n", debugstr_w(ret));
 329
 330     if(retv) {
 331         if(!ret) {
 332             ret = SysAllocStringLen(NULL, 0);
 333             if(!ret)
 334                 return E_OUTOFMEMORY;
 335         }
 336
 337         V_VT(retv) = VT_BSTR;
 338         V_BSTR(retv) = ret;
 339     }else {
 340         SysFreeString(ret);
 341     }
 342
 343     return S_OK;
 344 }
 345
 346 /* ECMA-262 3rd Edition    15.4.4.5 */
 347 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 348         VARIANT *retv, jsexcept_t *ei)
 349 {
 350     jsdisp_t *jsthis;
 351     DWORD length;
 352     HRESULT hres;
 353
 354     TRACE("\n");
 355
 356     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 357     if(FAILED(hres))
 358         return hres;
 359
 360     if(arg_cnt(dp)) {
 361         BSTR sep;
 362
 363         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 364         if(FAILED(hres))
 365             return hres;
 366
 367         hres = array_join(ctx, jsthis, length, sep, retv, ei);
 368
 369         SysFreeString(sep);
 370     }else {
 371         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei);
 372     }
 373
 374     return hres;
 375 }
 376
 377 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 378         VARIANT *retv, jsexcept_t *ei)
 379 {
 380     jsdisp_t *jsthis;
 381     VARIANT val;
 382     DWORD length;
 383     HRESULT hres;
 384
 385     TRACE("\n");
 386
 387     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 388     if(FAILED(hres))
 389         return hres;
 390
 391     if(!length) {
 392         hres = set_length(jsthis, ei, 0);
 393         if(FAILED(hres))
 394             return hres;
 395
 396         if(retv)
 397             V_VT(retv) = VT_EMPTY;
 398         return S_OK;
 399     }
 400
 401     length--;
 402     hres = jsdisp_get_idx(jsthis, length, &val, ei);
 403     if(SUCCEEDED(hres)) {
 404         hres = jsdisp_delete_idx(jsthis, length);
 405     } else if(hres == DISP_E_UNKNOWNNAME) {
 406         V_VT(&val) = VT_EMPTY;
 407         hres = S_OK;
 408     } else
 409         return hres;
 410
 411     if(SUCCEEDED(hres))
 412         hres = set_length(jsthis, ei, length);
 413
 414     if(FAILED(hres)) {
 415         VariantClear(&val);
 416         return hres;
 417     }
 418
 419     if(retv)
 420         *retv = val;
 421     else
 422         VariantClear(&val);
 423
 424     return S_OK;
 425 }
 426
 427 /* ECMA-262 3rd Edition    15.4.4.7 */
 428 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 429         VARIANT *retv, jsexcept_t *ei)
 430 {
 431     jsdisp_t *jsthis;
 432     DWORD length = 0;
 433     int i, n;
 434     HRESULT hres;
 435
 436     TRACE("\n");
 437
 438     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 439     if(FAILED(hres))
 440         return hres;
 441
 442     n = arg_cnt(dp);
 443     for(i=0; i < n; i++) {
 444         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei);
 445         if(FAILED(hres))
 446             return hres;
 447     }
 448
 449     hres = set_length(jsthis, ei, length+n);
 450     if(FAILED(hres))
 451         return hres;
 452
 453     if(retv) {
 454         V_VT(retv) = VT_I4;
 455         V_I4(retv) = length+n;
 456     }
 457     return S_OK;
 458 }
 459
 460 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 461         VARIANT *retv, jsexcept_t *ei)
 462 {
 463     jsdisp_t *jsthis;
 464     DWORD length, k, l;
 465     VARIANT v1, v2;
 466     HRESULT hres1, hres2;
 467
 468     TRACE("\n");
 469
 470     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 471     if(FAILED(hres1))
 472         return hres1;
 473
 474     for(k=0; k<length/2; k++) {
 475         l = length-k-1;
 476
 477         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei);
 478         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 479             return hres1;
 480
 481         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei);
 482         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 483             VariantClear(&v1);
 484             return hres2;
 485         }
 486
 487         if(hres1 == DISP_E_UNKNOWNNAME)
 488             hres1 = jsdisp_delete_idx(jsthis, l);
 489         else
 490             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei);
 491
 492         if(FAILED(hres1)) {
 493             VariantClear(&v1);
 494             VariantClear(&v2);
 495             return hres1;
 496         }
 497
 498         if(hres2 == DISP_E_UNKNOWNNAME)
 499             hres2 = jsdisp_delete_idx(jsthis, k);
 500         else
 501             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei);
 502
 503         if(FAILED(hres2)) {
 504             VariantClear(&v2);
 505             return hres2;
 506         }
 507     }
 508
 509     if(retv) {
 510         jsdisp_addref(jsthis);
 511         var_set_jsdisp(retv, jsthis);
 512     }
 513
 514     return S_OK;
 515 }
 516
 517 /* ECMA-262 3rd Edition    15.4.4.9 */
 518 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 519         VARIANT *retv, jsexcept_t *ei)
 520 {
 521     jsdisp_t *jsthis;
 522     DWORD length = 0, i;
 523     VARIANT v, ret;
 524     HRESULT hres;
 525
 526     TRACE("\n");
 527
 528     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 529     if(FAILED(hres))
 530         return hres;
 531
 532     if(!length) {
 533         hres = set_length(jsthis, ei, 0);
 534         if(FAILED(hres))
 535             return hres;
 536     }
 537
 538     if(!length) {
 539         if(retv)
 540             V_VT(retv) = VT_EMPTY;
 541         return S_OK;
 542     }
 543
 544     hres = jsdisp_get_idx(jsthis, 0, &ret, ei);
 545     if(hres == DISP_E_UNKNOWNNAME) {
 546         V_VT(&ret) = VT_EMPTY;
 547         hres = S_OK;
 548     }
 549
 550     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 551         hres = jsdisp_get_idx(jsthis, i, &v, ei);
 552         if(hres == DISP_E_UNKNOWNNAME)
 553             hres = jsdisp_delete_idx(jsthis, i-1);
 554         else if(SUCCEEDED(hres))
 555             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei);
 556     }
 557
 558     if(SUCCEEDED(hres)) {
 559         hres = jsdisp_delete_idx(jsthis, length-1);
 560         if(SUCCEEDED(hres))
 561             hres = set_length(jsthis, ei, length-1);
 562     }
 563
 564     if(SUCCEEDED(hres) && retv)
 565         *retv = ret;
 566     else
 567         VariantClear(&ret);
 568     return hres;
 569 }
 570
 571 /* ECMA-262 3rd Edition    15.4.4.10 */
 572 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 573         VARIANT *retv, jsexcept_t *ei)
 574 {
 575     jsdisp_t *arr, *jsthis;
 576     VARIANT v;
 577     DOUBLE range;
 578     DWORD length, start, end, idx;
 579     HRESULT hres;
 580
 581     TRACE("\n");
 582
 583     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 584     if(FAILED(hres))
 585         return hres;
 586
 587     if(arg_cnt(dp)) {
 588         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 589         if(FAILED(hres))
 590             return hres;
 591
 592         if(V_VT(&v) == VT_I4)
 593             range = V_I4(&v);
 594         else
 595             range = floor(V_R8(&v));
 596
 597         if(-range>length || isnan(range)) start = 0;
 598         else if(range < 0) start = range+length;
 599         else if(range <= length) start = range;
 600         else start = length;
 601     }
 602     else start = 0;
 603
 604     if(arg_cnt(dp)>1) {
 605         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 606         if(FAILED(hres))
 607             return hres;
 608
 609         if(V_VT(&v) == VT_I4)
 610             range = V_I4(&v);
 611         else
 612             range = floor(V_R8(&v));
 613
 614         if(-range>length) end = 0;
 615         else if(range < 0) end = range+length;
 616         else if(range <= length) end = range;
 617         else end = length;
 618     }
 619     else end = length;
 620
 621     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 622     if(FAILED(hres))
 623         return hres;
 624
 625     for(idx=start; idx<end; idx++) {
 626         hres = jsdisp_get_idx(jsthis, idx, &v, ei);
 627         if(hres == DISP_E_UNKNOWNNAME)
 628             continue;
 629
 630         if(SUCCEEDED(hres)) {
 631             hres = jsdisp_propput_idx(arr, idx-start, &v, ei);
 632             VariantClear(&v);
 633         }
 634
 635         if(FAILED(hres)) {
 636             jsdisp_release(arr);
 637             return hres;
 638         }
 639     }
 640
 641     if(retv)
 642         var_set_jsdisp(retv, arr);
 643     else
 644         jsdisp_release(arr);
 645
 646     return S_OK;
 647 }
 648
 649 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 650 {
 651     HRESULT hres;
 652
 653     if(cmp_func) {
 654         VARIANTARG args[2];
 655         DISPPARAMS dp = {args, NULL, 2, 0};
 656         VARIANT tmp;
 657         VARIANT res;
 658
 659         args[0] = *v2;
 660         args[1] = *v1;
 661
 662         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei);
 663         if(FAILED(hres))
 664             return hres;
 665
 666         hres = to_number(ctx, &res, ei, &tmp);
 667         VariantClear(&res);
 668         if(FAILED(hres))
 669             return hres;
 670
 671         if(V_VT(&tmp) == VT_I4)
 672             *cmp = V_I4(&tmp);
 673         else
 674             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 675     }else if(V_VT(v1) == VT_EMPTY) {
 676         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 677     }else if(V_VT(v2) == VT_EMPTY) {
 678         *cmp = -1;
 679     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 680         DOUBLE d = num_val(v1)-num_val(v2);
 681         if(d > 0.0)
 682             *cmp = 1;
 683         else
 684             *cmp = d < -0.0 ? -1 : 0;
 685     }else {
 686         BSTR x, y;
 687
 688         hres = to_string(ctx, v1, ei, &x);
 689         if(FAILED(hres))
 690             return hres;
 691
 692         hres = to_string(ctx, v2, ei, &y);
 693         if(SUCCEEDED(hres)) {
 694             *cmp = strcmpW(x, y);
 695             SysFreeString(y);
 696         }
 697         SysFreeString(x);
 698         if(FAILED(hres))
 699             return hres;
 700     }
 701
 702     return S_OK;
 703 }
 704
 705 /* ECMA-262 3rd Edition    15.4.4.11 */
 706 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 707         VARIANT *retv, jsexcept_t *ei)
 708 {
 709     jsdisp_t *jsthis, *cmp_func = NULL;
 710     VARIANT *vtab, **sorttab = NULL;
 711     DWORD length;
 712     DWORD i;
 713     HRESULT hres = S_OK;
 714
 715     TRACE("\n");
 716
 717     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 718     if(FAILED(hres))
 719         return hres;
 720
 721     if(arg_cnt(dp) > 1) {
 722         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 723         return E_FAIL;
 724     }
 725
 726     if(arg_cnt(dp) == 1) {
 727         VARIANT *arg = get_arg(dp, 0);
 728
 729         if(V_VT(arg) != VT_DISPATCH) {
 730             WARN("arg is not dispatch\n");
 731             return E_FAIL;
 732         }
 733
 734
 735         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 736         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 737             WARN("cmp_func is not a function\n");
 738             if(cmp_func)
 739                 jsdisp_release(cmp_func);
 740             return E_FAIL;
 741         }
 742     }
 743
 744     if(!length) {
 745         if(cmp_func)
 746             jsdisp_release(cmp_func);
 747         if(retv) {
 748             jsdisp_addref(jsthis);
 749             var_set_jsdisp(retv, jsthis);
 750         }
 751         return S_OK;
 752     }
 753
 754     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 755     if(vtab) {
 756         for(i=0; i<length; i++) {
 757             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei);
 758             if(hres == DISP_E_UNKNOWNNAME) {
 759                 V_VT(vtab+i) = VT_EMPTY;
 760                 hres = S_OK;
 761             } else if(FAILED(hres)) {
 762                 WARN("Could not get elem %d: %08x\n", i, hres);
 763                 break;
 764             }
 765         }
 766     }else {
 767         hres = E_OUTOFMEMORY;
 768     }
 769
 770     if(SUCCEEDED(hres)) {
 771         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 772         if(!sorttab)
 773             hres = E_OUTOFMEMORY;
 774     }
 775
 776     /* merge-sort */
 777     if(SUCCEEDED(hres)) {
 778         VARIANT *tmpv, **tmpbuf;
 779         INT cmp;
 780
 781         tmpbuf = sorttab + length;
 782         for(i=0; i < length; i++)
 783             sorttab[i] = vtab+i;
 784
 785         for(i=0; i < length/2; i++) {
 786             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 787             if(FAILED(hres))
 788                 break;
 789
 790             if(cmp < 0) {
 791                 tmpv = sorttab[2*i];
 792                 sorttab[2*i] = sorttab[2*i+1];
 793                 sorttab[2*i+1] = tmpv;
 794             }
 795         }
 796
 797         if(SUCCEEDED(hres)) {
 798             DWORD k, a, b, bend;
 799
 800             for(k=2; k < length; k *= 2) {
 801                 for(i=0; i+k < length; i += 2*k) {
 802                     a = b = 0;
 803                     if(i+2*k <= length)
 804                         bend = k;
 805                     else
 806                         bend = length - (i+k);
 807
 808                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 809
 810                     while(a < k && b < bend) {
 811                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 812                         if(FAILED(hres))
 813                             break;
 814
 815                         if(cmp < 0) {
 816                             sorttab[i+a+b] = tmpbuf[a];
 817                             a++;
 818                         }else {
 819                             sorttab[i+a+b] = sorttab[i+k+b];
 820                             b++;
 821                         }
 822                     }
 823
 824                     if(FAILED(hres))
 825                         break;
 826
 827                     if(a < k)
 828                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 829                 }
 830
 831                 if(FAILED(hres))
 832                     break;
 833             }
 834         }
 835
 836         for(i=0; SUCCEEDED(hres) && i < length; i++)
 837             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei);
 838     }
 839
 840     if(vtab) {
 841         for(i=0; i < length; i++)
 842             VariantClear(vtab+i);
 843         heap_free(vtab);
 844     }
 845     heap_free(sorttab);
 846     if(cmp_func)
 847         jsdisp_release(cmp_func);
 848
 849     if(FAILED(hres))
 850         return hres;
 851
 852     if(retv) {
 853         jsdisp_addref(jsthis);
 854         var_set_jsdisp(retv, jsthis);
 855     }
 856
 857     return S_OK;
 858 }
 859
 860 /* ECMA-262 3rd Edition    15.4.4.12 */
 861 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 862         VARIANT *retv, jsexcept_t *ei)
 863 {
 864     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 865     jsdisp_t *ret_array = NULL, *jsthis;
 866     VARIANT v;
 867     HRESULT hres = S_OK;
 868
 869     TRACE("\n");
 870
 871     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 872     if(FAILED(hres))
 873         return hres;
 874
 875     argc = arg_cnt(dp);
 876     if(argc >= 1) {
 877         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 878         if(FAILED(hres))
 879             return hres;
 880
 881         if(V_VT(&v) == VT_I4) {
 882             if(V_I4(&v) >= 0)
 883                 start = min(V_I4(&v), length);
 884             else
 885                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 886         }else {
 887             start = V_R8(&v) < 0.0 ? 0 : length;
 888         }
 889     }
 890
 891     if(argc >= 2) {
 892         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 893         if(FAILED(hres))
 894             return hres;
 895
 896         if(V_VT(&v) == VT_I4) {
 897             if(V_I4(&v) > 0)
 898                 delete_cnt = min(V_I4(&v), length-start);
 899         }else if(V_R8(&v) > 0.0) {
 900             delete_cnt = length-start;
 901         }
 902
 903         add_args = argc-2;
 904     }
 905
 906     if(retv) {
 907         hres = create_array(ctx, 0, &ret_array);
 908         if(FAILED(hres))
 909             return hres;
 910
 911         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 912             hres = jsdisp_get_idx(jsthis, start+i, &v, ei);
 913             if(hres == DISP_E_UNKNOWNNAME)
 914                 hres = S_OK;
 915             else if(SUCCEEDED(hres))
 916                 hres = jsdisp_propput_idx(ret_array, i, &v, ei);
 917         }
 918
 919         if(SUCCEEDED(hres)) {
 920             V_VT(&v) = VT_I4;
 921             V_I4(&v) = delete_cnt;
 922
 923             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 924         }
 925     }
 926
 927     if(add_args < delete_cnt) {
 928         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 929             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei);
 930             if(hres == DISP_E_UNKNOWNNAME)
 931                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 932             else if(SUCCEEDED(hres))
 933                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei);
 934         }
 935
 936         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 937             hres = jsdisp_delete_idx(jsthis, i-1);
 938     }else if(add_args > delete_cnt) {
 939         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 940             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei);
 941             if(hres == DISP_E_UNKNOWNNAME)
 942                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 943             else if(SUCCEEDED(hres))
 944                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei);
 945         }
 946     }
 947
 948     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 949         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei);
 950
 951     if(SUCCEEDED(hres)) {
 952         V_VT(&v) = VT_I4;
 953         V_I4(&v) = length-delete_cnt+add_args;
 954         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 955     }
 956
 957     if(FAILED(hres)) {
 958         if(ret_array)
 959             jsdisp_release(ret_array);
 960         return hres;
 961     }
 962
 963     if(retv)
 964         var_set_jsdisp(retv, ret_array);
 965     return S_OK;
 966 }
 967
 968 /* ECMA-262 3rd Edition    15.4.4.2 */
 969 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 970         VARIANT *retv, jsexcept_t *ei)
 971 {
 972     ArrayInstance *array;
 973
 974     TRACE("\n");
 975
 976     array = array_this(jsthis);
 977     if(!array)
 978         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 979
 980     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei);
 981 }
 982
 983 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 984         VARIANT *retv, jsexcept_t *ei)
 985 {
 986     FIXME("\n");
 987     return E_NOTIMPL;
 988 }
 989
 990 /* ECMA-262 3rd Edition    15.4.4.13 */
 991 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 992         VARIANT *retv, jsexcept_t *ei)
 993 {
 994     jsdisp_t *jsthis;
 995     WCHAR buf[14], *buf_end, *str;
 996     DWORD argc, i, length;
 997     VARIANT var;
 998     DISPID id;
 999     HRESULT hres;
1000
1001     TRACE("\n");
1002
1003     hres = get_length(ctx, vthis, ei, &jsthis, &length);
1004     if(FAILED(hres))
1005         return hres;
1006
1007     argc = arg_cnt(dp);
1008     if(argc) {
1009         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1010         *buf_end-- = 0;
1011         i = length;
1012
1013         while(i--) {
1014             str = idx_to_str(i, buf_end);
1015
1016             hres = jsdisp_get_id(jsthis, str, 0, &id);
1017             if(SUCCEEDED(hres)) {
1018                 hres = jsdisp_propget(jsthis, id, &var, ei);
1019                 if(FAILED(hres))
1020                     return hres;
1021
1022                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei);
1023                 VariantClear(&var);
1024             }else if(hres == DISP_E_UNKNOWNNAME) {
1025                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1026             }
1027         }
1028
1029         if(FAILED(hres))
1030             return hres;
1031     }
1032
1033     for(i=0; i<argc; i++) {
1034         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei);
1035         if(FAILED(hres))
1036             return hres;
1037     }
1038
1039     if(argc) {
1040         length += argc;
1041         hres = set_length(jsthis, ei, length);
1042         if(FAILED(hres))
1043             return hres;
1044     }
1045
1046     if(retv) {
1047         if(ctx->version < 2) {
1048             V_VT(retv) = VT_EMPTY;
1049         }else {
1050             V_VT(retv) = VT_I4;
1051             V_I4(retv) = length;
1052         }
1053     }
1054     return S_OK;
1055 }
1056
1057 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1058         VARIANT *retv, jsexcept_t *ei)
1059 {
1060     TRACE("\n");
1061
1062     switch(flags) {
1063     case INVOKE_FUNC:
1064         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1065     case INVOKE_PROPERTYGET:
1066         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei);
1067     default:
1068         FIXME("unimplemented flags %x\n", flags);
1069         return E_NOTIMPL;
1070     }
1071
1072     return S_OK;
1073 }
1074
1075 static void Array_destructor(jsdisp_t *dispex)
1076 {
1077     heap_free(dispex);
1078 }
1079
1080 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1081 {
1082     ArrayInstance *array = (ArrayInstance*)dispex;
1083     const WCHAR *ptr = name;
1084     DWORD id = 0;
1085
1086     if(!isdigitW(*ptr))
1087         return;
1088
1089     while(*ptr && isdigitW(*ptr)) {
1090         id = id*10 + (*ptr-'0');
1091         ptr++;
1092     }
1093
1094     if(*ptr)
1095         return;
1096
1097     if(id >= array->length)
1098         array->length = id+1;
1099 }
1100
1101 static const builtin_prop_t Array_props[] = {
1102     {concatW,                Array_concat,               PROPF_METHOD|1},
1103     {joinW,                  Array_join,                 PROPF_METHOD|1},
1104     {lengthW,                Array_length,               0},
1105     {popW,                   Array_pop,                  PROPF_METHOD},
1106     {pushW,                  Array_push,                 PROPF_METHOD|1},
1107     {reverseW,               Array_reverse,              PROPF_METHOD},
1108     {shiftW,                 Array_shift,                PROPF_METHOD},
1109     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1110     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1111     {spliceW,                Array_splice,               PROPF_METHOD|2},
1112     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1113     {toStringW,              Array_toString,             PROPF_METHOD},
1114     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1115 };
1116
1117 static const builtin_info_t Array_info = {
1118     JSCLASS_ARRAY,
1119     {NULL, Array_value, 0},
1120     sizeof(Array_props)/sizeof(*Array_props),
1121     Array_props,
1122     Array_destructor,
1123     Array_on_put
1124 };
1125
1126 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1127         VARIANT *retv, jsexcept_t *ei)
1128 {
1129     jsdisp_t *obj;
1130     VARIANT *arg_var;
1131     DWORD i;
1132     HRESULT hres;
1133
1134     TRACE("\n");
1135
1136     switch(flags) {
1137     case DISPATCH_METHOD:
1138     case DISPATCH_CONSTRUCT: {
1139         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1140             if(V_I4(arg_var) < 0)
1141                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1142
1143             hres = create_array(ctx, V_I4(arg_var), &obj);
1144             if(FAILED(hres))
1145                 return hres;
1146
1147             var_set_jsdisp(retv, obj);
1148             return S_OK;
1149         }
1150
1151         hres = create_array(ctx, arg_cnt(dp), &obj);
1152         if(FAILED(hres))
1153             return hres;
1154
1155         for(i=0; i < arg_cnt(dp); i++) {
1156             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei);
1157             if(FAILED(hres))
1158                 break;
1159         }
1160         if(FAILED(hres)) {
1161             jsdisp_release(obj);
1162             return hres;
1163         }
1164
1165         var_set_jsdisp(retv, obj);
1166         break;
1167     }
1168     default:
1169         FIXME("unimplemented flags: %x\n", flags);
1170         return E_NOTIMPL;
1171     }
1172
1173     return S_OK;
1174 }
1175
1176 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1177 {
1178     ArrayInstance *array;
1179     HRESULT hres;
1180
1181     array = heap_alloc_zero(sizeof(ArrayInstance));
1182     if(!array)
1183         return E_OUTOFMEMORY;
1184
1185     if(object_prototype)
1186         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1187     else
1188         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1189
1190     if(FAILED(hres)) {
1191         heap_free(array);
1192         return hres;
1193     }
1194
1195     *ret = array;
1196     return S_OK;
1197 }
1198
1199 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1200 {
1201     ArrayInstance *array;
1202     HRESULT hres;
1203
1204     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1205
1206     hres = alloc_array(ctx, object_prototype, &array);
1207     if(FAILED(hres))
1208         return hres;
1209
1210     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1211
1212     jsdisp_release(&array->dispex);
1213     return hres;
1214 }
1215
1216 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1217 {
1218     ArrayInstance *array;
1219     HRESULT hres;
1220
1221     hres = alloc_array(ctx, NULL, &array);
1222     if(FAILED(hres))
1223         return hres;
1224
1225     array->length = length;
1226
1227     *ret = &array->dispex;
1228     return S_OK;
1229 }