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, NULL/*FIXME*/);
  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, IServiceProvider *sp)
 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,
 165         jsexcept_t *ei, IServiceProvider *caller)
 166 {
 167     VARIANT var;
 168     DWORD i;
 169     HRESULT hres;
 170
 171     for(i=0; i < obj->length; i++) {
 172         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei, caller);
 173         if(hres == DISP_E_UNKNOWNNAME)
 174             continue;
 175         if(FAILED(hres))
 176             return hres;
 177
 178         hres = jsdisp_propput_idx(array, *len+i, &var, ei, caller);
 179         VariantClear(&var);
 180         if(FAILED(hres))
 181             return hres;
 182     }
 183
 184     *len += obj->length;
 185     return S_OK;
 186 }
 187
 188 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei, IServiceProvider *caller)
 189 {
 190     jsdisp_t *jsobj;
 191     VARIANT var;
 192     HRESULT hres;
 193
 194     jsobj = iface_to_jsdisp((IUnknown*)obj);
 195     if(jsobj) {
 196         if(is_class(jsobj, JSCLASS_ARRAY)) {
 197             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei, caller);
 198             jsdisp_release(jsobj);
 199             return hres;
 200         }
 201         jsdisp_release(jsobj);
 202     }
 203
 204     V_VT(&var) = VT_DISPATCH;
 205     V_DISPATCH(&var) = obj;
 206     return jsdisp_propput_idx(array, (*len)++, &var, ei, caller);
 207 }
 208
 209 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 210         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 211 {
 212     jsdisp_t *ret;
 213     DWORD len = 0;
 214     HRESULT hres;
 215
 216     TRACE("\n");
 217
 218     hres = create_array(ctx, 0, &ret);
 219     if(FAILED(hres))
 220         return hres;
 221
 222     hres = concat_obj(ret, jsthis->u.disp, &len, ei, caller);
 223     if(SUCCEEDED(hres)) {
 224         VARIANT *arg;
 225         DWORD i;
 226
 227         for(i=0; i < arg_cnt(dp); i++) {
 228             arg = get_arg(dp, i);
 229             if(V_VT(arg) == VT_DISPATCH)
 230                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei, caller);
 231             else
 232                 hres = jsdisp_propput_idx(ret, len++, arg, ei, caller);
 233             if(FAILED(hres))
 234                 break;
 235         }
 236     }
 237
 238     if(FAILED(hres))
 239         return hres;
 240
 241     if(retv)
 242         var_set_jsdisp(retv, ret);
 243     else
 244         jsdisp_release(ret);
 245     return S_OK;
 246 }
 247
 248 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 249         jsexcept_t *ei, IServiceProvider *caller)
 250 {
 251     BSTR *str_tab, ret = NULL;
 252     VARIANT var;
 253     DWORD i;
 254     HRESULT hres = E_FAIL;
 255
 256     if(!length) {
 257         if(retv) {
 258             V_VT(retv) = VT_BSTR;
 259             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 260             if(!V_BSTR(retv))
 261                 return E_OUTOFMEMORY;
 262         }
 263         return S_OK;
 264     }
 265
 266     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 267     if(!str_tab)
 268         return E_OUTOFMEMORY;
 269
 270     for(i=0; i < length; i++) {
 271         hres = jsdisp_get_idx(array, i, &var, ei, caller);
 272         if(hres == DISP_E_UNKNOWNNAME) {
 273             hres = S_OK;
 274             continue;
 275         } else if(FAILED(hres))
 276             break;
 277
 278         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 279             hres = to_string(ctx, &var, ei, str_tab+i);
 280         VariantClear(&var);
 281         if(FAILED(hres))
 282             break;
 283     }
 284
 285     if(SUCCEEDED(hres)) {
 286         DWORD seplen = 0, len = 0;
 287         WCHAR *ptr;
 288
 289         seplen = strlenW(sep);
 290
 291         if(str_tab[0])
 292             len = SysStringLen(str_tab[0]);
 293         for(i=1; i < length; i++)
 294             len += seplen + SysStringLen(str_tab[i]);
 295
 296         ret = SysAllocStringLen(NULL, len);
 297         if(ret) {
 298             DWORD tmplen = 0;
 299
 300             if(str_tab[0]) {
 301                 tmplen = SysStringLen(str_tab[0]);
 302                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 303             }
 304
 305             ptr = ret + tmplen;
 306             for(i=1; i < length; i++) {
 307                 if(seplen) {
 308                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 309                     ptr += seplen;
 310                 }
 311
 312                 if(str_tab[i]) {
 313                     tmplen = SysStringLen(str_tab[i]);
 314                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 315                     ptr += tmplen;
 316                 }
 317             }
 318             *ptr=0;
 319         }else {
 320             hres = E_OUTOFMEMORY;
 321         }
 322     }
 323
 324     for(i=0; i < length; i++)
 325         SysFreeString(str_tab[i]);
 326     heap_free(str_tab);
 327     if(FAILED(hres))
 328         return hres;
 329
 330     TRACE("= %s\n", debugstr_w(ret));
 331
 332     if(retv) {
 333         if(!ret) {
 334             ret = SysAllocStringLen(NULL, 0);
 335             if(!ret)
 336                 return E_OUTOFMEMORY;
 337         }
 338
 339         V_VT(retv) = VT_BSTR;
 340         V_BSTR(retv) = ret;
 341     }else {
 342         SysFreeString(ret);
 343     }
 344
 345     return S_OK;
 346 }
 347
 348 /* ECMA-262 3rd Edition    15.4.4.5 */
 349 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 350         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 351 {
 352     jsdisp_t *jsthis;
 353     DWORD length;
 354     HRESULT hres;
 355
 356     TRACE("\n");
 357
 358     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 359     if(FAILED(hres))
 360         return hres;
 361
 362     if(arg_cnt(dp)) {
 363         BSTR sep;
 364
 365         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 366         if(FAILED(hres))
 367             return hres;
 368
 369         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 370
 371         SysFreeString(sep);
 372     }else {
 373         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 374     }
 375
 376     return hres;
 377 }
 378
 379 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 380         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 381 {
 382     jsdisp_t *jsthis;
 383     VARIANT val;
 384     DWORD length;
 385     HRESULT hres;
 386
 387     TRACE("\n");
 388
 389     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 390     if(FAILED(hres))
 391         return hres;
 392
 393     if(!length) {
 394         hres = set_length(jsthis, ei, 0);
 395         if(FAILED(hres))
 396             return hres;
 397
 398         if(retv)
 399             V_VT(retv) = VT_EMPTY;
 400         return S_OK;
 401     }
 402
 403     length--;
 404     hres = jsdisp_get_idx(jsthis, length, &val, ei, caller);
 405     if(SUCCEEDED(hres)) {
 406         hres = jsdisp_delete_idx(jsthis, length);
 407     } else if(hres == DISP_E_UNKNOWNNAME) {
 408         V_VT(&val) = VT_EMPTY;
 409         hres = S_OK;
 410     } else
 411         return hres;
 412
 413     if(SUCCEEDED(hres))
 414         hres = set_length(jsthis, ei, length);
 415
 416     if(FAILED(hres)) {
 417         VariantClear(&val);
 418         return hres;
 419     }
 420
 421     if(retv)
 422         *retv = val;
 423     else
 424         VariantClear(&val);
 425
 426     return S_OK;
 427 }
 428
 429 /* ECMA-262 3rd Edition    15.4.4.7 */
 430 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 431         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 432 {
 433     jsdisp_t *jsthis;
 434     DWORD length = 0;
 435     int i, n;
 436     HRESULT hres;
 437
 438     TRACE("\n");
 439
 440     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 441     if(FAILED(hres))
 442         return hres;
 443
 444     n = arg_cnt(dp);
 445     for(i=0; i < n; i++) {
 446         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei, sp);
 447         if(FAILED(hres))
 448             return hres;
 449     }
 450
 451     hres = set_length(jsthis, ei, length+n);
 452     if(FAILED(hres))
 453         return hres;
 454
 455     if(retv) {
 456         V_VT(retv) = VT_I4;
 457         V_I4(retv) = length+n;
 458     }
 459     return S_OK;
 460 }
 461
 462 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 463         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 464 {
 465     jsdisp_t *jsthis;
 466     DWORD length, k, l;
 467     VARIANT v1, v2;
 468     HRESULT hres1, hres2;
 469
 470     TRACE("\n");
 471
 472     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 473     if(FAILED(hres1))
 474         return hres1;
 475
 476     for(k=0; k<length/2; k++) {
 477         l = length-k-1;
 478
 479         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei, sp);
 480         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 481             return hres1;
 482
 483         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei, sp);
 484         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 485             VariantClear(&v1);
 486             return hres2;
 487         }
 488
 489         if(hres1 == DISP_E_UNKNOWNNAME)
 490             hres1 = jsdisp_delete_idx(jsthis, l);
 491         else
 492             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei, sp);
 493
 494         if(FAILED(hres1)) {
 495             VariantClear(&v1);
 496             VariantClear(&v2);
 497             return hres1;
 498         }
 499
 500         if(hres2 == DISP_E_UNKNOWNNAME)
 501             hres2 = jsdisp_delete_idx(jsthis, k);
 502         else
 503             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei, sp);
 504
 505         if(FAILED(hres2)) {
 506             VariantClear(&v2);
 507             return hres2;
 508         }
 509     }
 510
 511     if(retv) {
 512         jsdisp_addref(jsthis);
 513         var_set_jsdisp(retv, jsthis);
 514     }
 515
 516     return S_OK;
 517 }
 518
 519 /* ECMA-262 3rd Edition    15.4.4.9 */
 520 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 521         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 522 {
 523     jsdisp_t *jsthis;
 524     DWORD length = 0, i;
 525     VARIANT v, ret;
 526     HRESULT hres;
 527
 528     TRACE("\n");
 529
 530     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 531     if(FAILED(hres))
 532         return hres;
 533
 534     if(!length) {
 535         hres = set_length(jsthis, ei, 0);
 536         if(FAILED(hres))
 537             return hres;
 538     }
 539
 540     if(!length) {
 541         if(retv)
 542             V_VT(retv) = VT_EMPTY;
 543         return S_OK;
 544     }
 545
 546     hres = jsdisp_get_idx(jsthis, 0, &ret, ei, caller);
 547     if(hres == DISP_E_UNKNOWNNAME) {
 548         V_VT(&ret) = VT_EMPTY;
 549         hres = S_OK;
 550     }
 551
 552     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 553         hres = jsdisp_get_idx(jsthis, i, &v, ei, caller);
 554         if(hres == DISP_E_UNKNOWNNAME)
 555             hres = jsdisp_delete_idx(jsthis, i-1);
 556         else if(SUCCEEDED(hres))
 557             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei, caller);
 558     }
 559
 560     if(SUCCEEDED(hres)) {
 561         hres = jsdisp_delete_idx(jsthis, length-1);
 562         if(SUCCEEDED(hres))
 563             hres = set_length(jsthis, ei, length-1);
 564     }
 565
 566     if(SUCCEEDED(hres) && retv)
 567         *retv = ret;
 568     else
 569         VariantClear(&ret);
 570     return hres;
 571 }
 572
 573 /* ECMA-262 3rd Edition    15.4.4.10 */
 574 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 575         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 576 {
 577     jsdisp_t *arr, *jsthis;
 578     VARIANT v;
 579     DOUBLE range;
 580     DWORD length, start, end, idx;
 581     HRESULT hres;
 582
 583     TRACE("\n");
 584
 585     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 586     if(FAILED(hres))
 587         return hres;
 588
 589     if(arg_cnt(dp)) {
 590         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 591         if(FAILED(hres))
 592             return hres;
 593
 594         if(V_VT(&v) == VT_I4)
 595             range = V_I4(&v);
 596         else
 597             range = floor(V_R8(&v));
 598
 599         if(-range>length || isnan(range)) start = 0;
 600         else if(range < 0) start = range+length;
 601         else if(range <= length) start = range;
 602         else start = length;
 603     }
 604     else start = 0;
 605
 606     if(arg_cnt(dp)>1) {
 607         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 608         if(FAILED(hres))
 609             return hres;
 610
 611         if(V_VT(&v) == VT_I4)
 612             range = V_I4(&v);
 613         else
 614             range = floor(V_R8(&v));
 615
 616         if(-range>length) end = 0;
 617         else if(range < 0) end = range+length;
 618         else if(range <= length) end = range;
 619         else end = length;
 620     }
 621     else end = length;
 622
 623     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 624     if(FAILED(hres))
 625         return hres;
 626
 627     for(idx=start; idx<end; idx++) {
 628         hres = jsdisp_get_idx(jsthis, idx, &v, ei, sp);
 629         if(hres == DISP_E_UNKNOWNNAME)
 630             continue;
 631
 632         if(SUCCEEDED(hres)) {
 633             hres = jsdisp_propput_idx(arr, idx-start, &v, ei, sp);
 634             VariantClear(&v);
 635         }
 636
 637         if(FAILED(hres)) {
 638             jsdisp_release(arr);
 639             return hres;
 640         }
 641     }
 642
 643     if(retv)
 644         var_set_jsdisp(retv, arr);
 645     else
 646         jsdisp_release(arr);
 647
 648     return S_OK;
 649 }
 650
 651 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 652 {
 653     HRESULT hres;
 654
 655     if(cmp_func) {
 656         VARIANTARG args[2];
 657         DISPPARAMS dp = {args, NULL, 2, 0};
 658         VARIANT tmp;
 659         VARIANT res;
 660
 661         args[0] = *v2;
 662         args[1] = *v1;
 663
 664         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei);
 665         if(FAILED(hres))
 666             return hres;
 667
 668         hres = to_number(ctx, &res, ei, &tmp);
 669         VariantClear(&res);
 670         if(FAILED(hres))
 671             return hres;
 672
 673         if(V_VT(&tmp) == VT_I4)
 674             *cmp = V_I4(&tmp);
 675         else
 676             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 677     }else if(V_VT(v1) == VT_EMPTY) {
 678         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 679     }else if(V_VT(v2) == VT_EMPTY) {
 680         *cmp = -1;
 681     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 682         DOUBLE d = num_val(v1)-num_val(v2);
 683         if(d > 0.0)
 684             *cmp = 1;
 685         else
 686             *cmp = d < -0.0 ? -1 : 0;
 687     }else {
 688         BSTR x, y;
 689
 690         hres = to_string(ctx, v1, ei, &x);
 691         if(FAILED(hres))
 692             return hres;
 693
 694         hres = to_string(ctx, v2, ei, &y);
 695         if(SUCCEEDED(hres)) {
 696             *cmp = strcmpW(x, y);
 697             SysFreeString(y);
 698         }
 699         SysFreeString(x);
 700         if(FAILED(hres))
 701             return hres;
 702     }
 703
 704     return S_OK;
 705 }
 706
 707 /* ECMA-262 3rd Edition    15.4.4.11 */
 708 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 709         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 710 {
 711     jsdisp_t *jsthis, *cmp_func = NULL;
 712     VARIANT *vtab, **sorttab = NULL;
 713     DWORD length;
 714     DWORD i;
 715     HRESULT hres = S_OK;
 716
 717     TRACE("\n");
 718
 719     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 720     if(FAILED(hres))
 721         return hres;
 722
 723     if(arg_cnt(dp) > 1) {
 724         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 725         return E_FAIL;
 726     }
 727
 728     if(arg_cnt(dp) == 1) {
 729         VARIANT *arg = get_arg(dp, 0);
 730
 731         if(V_VT(arg) != VT_DISPATCH) {
 732             WARN("arg is not dispatch\n");
 733             return E_FAIL;
 734         }
 735
 736
 737         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 738         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 739             WARN("cmp_func is not a function\n");
 740             if(cmp_func)
 741                 jsdisp_release(cmp_func);
 742             return E_FAIL;
 743         }
 744     }
 745
 746     if(!length) {
 747         if(cmp_func)
 748             jsdisp_release(cmp_func);
 749         if(retv) {
 750             jsdisp_addref(jsthis);
 751             var_set_jsdisp(retv, jsthis);
 752         }
 753         return S_OK;
 754     }
 755
 756     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 757     if(vtab) {
 758         for(i=0; i<length; i++) {
 759             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei, caller);
 760             if(hres == DISP_E_UNKNOWNNAME) {
 761                 V_VT(vtab+i) = VT_EMPTY;
 762                 hres = S_OK;
 763             } else if(FAILED(hres)) {
 764                 WARN("Could not get elem %d: %08x\n", i, hres);
 765                 break;
 766             }
 767         }
 768     }else {
 769         hres = E_OUTOFMEMORY;
 770     }
 771
 772     if(SUCCEEDED(hres)) {
 773         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 774         if(!sorttab)
 775             hres = E_OUTOFMEMORY;
 776     }
 777
 778     /* merge-sort */
 779     if(SUCCEEDED(hres)) {
 780         VARIANT *tmpv, **tmpbuf;
 781         INT cmp;
 782
 783         tmpbuf = sorttab + length;
 784         for(i=0; i < length; i++)
 785             sorttab[i] = vtab+i;
 786
 787         for(i=0; i < length/2; i++) {
 788             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 789             if(FAILED(hres))
 790                 break;
 791
 792             if(cmp < 0) {
 793                 tmpv = sorttab[2*i];
 794                 sorttab[2*i] = sorttab[2*i+1];
 795                 sorttab[2*i+1] = tmpv;
 796             }
 797         }
 798
 799         if(SUCCEEDED(hres)) {
 800             DWORD k, a, b, bend;
 801
 802             for(k=2; k < length; k *= 2) {
 803                 for(i=0; i+k < length; i += 2*k) {
 804                     a = b = 0;
 805                     if(i+2*k <= length)
 806                         bend = k;
 807                     else
 808                         bend = length - (i+k);
 809
 810                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 811
 812                     while(a < k && b < bend) {
 813                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 814                         if(FAILED(hres))
 815                             break;
 816
 817                         if(cmp < 0) {
 818                             sorttab[i+a+b] = tmpbuf[a];
 819                             a++;
 820                         }else {
 821                             sorttab[i+a+b] = sorttab[i+k+b];
 822                             b++;
 823                         }
 824                     }
 825
 826                     if(FAILED(hres))
 827                         break;
 828
 829                     if(a < k)
 830                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 831                 }
 832
 833                 if(FAILED(hres))
 834                     break;
 835             }
 836         }
 837
 838         for(i=0; SUCCEEDED(hres) && i < length; i++)
 839             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei, caller);
 840     }
 841
 842     if(vtab) {
 843         for(i=0; i < length; i++)
 844             VariantClear(vtab+i);
 845         heap_free(vtab);
 846     }
 847     heap_free(sorttab);
 848     if(cmp_func)
 849         jsdisp_release(cmp_func);
 850
 851     if(FAILED(hres))
 852         return hres;
 853
 854     if(retv) {
 855         jsdisp_addref(jsthis);
 856         var_set_jsdisp(retv, jsthis);
 857     }
 858
 859     return S_OK;
 860 }
 861
 862 /* ECMA-262 3rd Edition    15.4.4.12 */
 863 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 864         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 865 {
 866     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 867     jsdisp_t *ret_array = NULL, *jsthis;
 868     VARIANT v;
 869     HRESULT hres = S_OK;
 870
 871     TRACE("\n");
 872
 873     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 874     if(FAILED(hres))
 875         return hres;
 876
 877     argc = arg_cnt(dp);
 878     if(argc >= 1) {
 879         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 880         if(FAILED(hres))
 881             return hres;
 882
 883         if(V_VT(&v) == VT_I4) {
 884             if(V_I4(&v) >= 0)
 885                 start = min(V_I4(&v), length);
 886             else
 887                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 888         }else {
 889             start = V_R8(&v) < 0.0 ? 0 : length;
 890         }
 891     }
 892
 893     if(argc >= 2) {
 894         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 895         if(FAILED(hres))
 896             return hres;
 897
 898         if(V_VT(&v) == VT_I4) {
 899             if(V_I4(&v) > 0)
 900                 delete_cnt = min(V_I4(&v), length-start);
 901         }else if(V_R8(&v) > 0.0) {
 902             delete_cnt = length-start;
 903         }
 904
 905         add_args = argc-2;
 906     }
 907
 908     if(retv) {
 909         hres = create_array(ctx, 0, &ret_array);
 910         if(FAILED(hres))
 911             return hres;
 912
 913         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 914             hres = jsdisp_get_idx(jsthis, start+i, &v, ei, caller);
 915             if(hres == DISP_E_UNKNOWNNAME)
 916                 hres = S_OK;
 917             else if(SUCCEEDED(hres))
 918                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 919         }
 920
 921         if(SUCCEEDED(hres)) {
 922             V_VT(&v) = VT_I4;
 923             V_I4(&v) = delete_cnt;
 924
 925             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 926         }
 927     }
 928
 929     if(add_args < delete_cnt) {
 930         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 931             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei, caller);
 932             if(hres == DISP_E_UNKNOWNNAME)
 933                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 934             else if(SUCCEEDED(hres))
 935                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 936         }
 937
 938         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 939             hres = jsdisp_delete_idx(jsthis, i-1);
 940     }else if(add_args > delete_cnt) {
 941         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 942             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 943             if(hres == DISP_E_UNKNOWNNAME)
 944                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 945             else if(SUCCEEDED(hres))
 946                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 947         }
 948     }
 949
 950     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 951         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 952
 953     if(SUCCEEDED(hres)) {
 954         V_VT(&v) = VT_I4;
 955         V_I4(&v) = length-delete_cnt+add_args;
 956         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 957     }
 958
 959     if(FAILED(hres)) {
 960         if(ret_array)
 961             jsdisp_release(ret_array);
 962         return hres;
 963     }
 964
 965     if(retv)
 966         var_set_jsdisp(retv, ret_array);
 967     return S_OK;
 968 }
 969
 970 /* ECMA-262 3rd Edition    15.4.4.2 */
 971 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 972         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 973 {
 974     ArrayInstance *array;
 975
 976     TRACE("\n");
 977
 978     array = array_this(jsthis);
 979     if(!array)
 980         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 981
 982     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 983 }
 984
 985 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 986         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 987 {
 988     FIXME("\n");
 989     return E_NOTIMPL;
 990 }
 991
 992 /* ECMA-262 3rd Edition    15.4.4.13 */
 993 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 994         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 995 {
 996     jsdisp_t *jsthis;
 997     WCHAR buf[14], *buf_end, *str;
 998     DWORD argc, i, length;
 999     VARIANT var;
1000     DISPID id;
1001     HRESULT hres;
1002
1003     TRACE("\n");
1004
1005     hres = get_length(ctx, vthis, ei, &jsthis, &length);
1006     if(FAILED(hres))
1007         return hres;
1008
1009     argc = arg_cnt(dp);
1010     if(argc) {
1011         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1012         *buf_end-- = 0;
1013         i = length;
1014
1015         while(i--) {
1016             str = idx_to_str(i, buf_end);
1017
1018             hres = jsdisp_get_id(jsthis, str, 0, &id);
1019             if(SUCCEEDED(hres)) {
1020                 hres = jsdisp_propget(jsthis, id, &var, ei);
1021                 if(FAILED(hres))
1022                     return hres;
1023
1024                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
1025                 VariantClear(&var);
1026             }else if(hres == DISP_E_UNKNOWNNAME) {
1027                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1028             }
1029         }
1030
1031         if(FAILED(hres))
1032             return hres;
1033     }
1034
1035     for(i=0; i<argc; i++) {
1036         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1037         if(FAILED(hres))
1038             return hres;
1039     }
1040
1041     if(argc) {
1042         length += argc;
1043         hres = set_length(jsthis, ei, length);
1044         if(FAILED(hres))
1045             return hres;
1046     }
1047
1048     if(retv) {
1049         if(ctx->version < 2) {
1050             V_VT(retv) = VT_EMPTY;
1051         }else {
1052             V_VT(retv) = VT_I4;
1053             V_I4(retv) = length;
1054         }
1055     }
1056     return S_OK;
1057 }
1058
1059 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1060         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1061 {
1062     TRACE("\n");
1063
1064     switch(flags) {
1065     case INVOKE_FUNC:
1066         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1067     case INVOKE_PROPERTYGET:
1068         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1069     default:
1070         FIXME("unimplemented flags %x\n", flags);
1071         return E_NOTIMPL;
1072     }
1073
1074     return S_OK;
1075 }
1076
1077 static void Array_destructor(jsdisp_t *dispex)
1078 {
1079     heap_free(dispex);
1080 }
1081
1082 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1083 {
1084     ArrayInstance *array = (ArrayInstance*)dispex;
1085     const WCHAR *ptr = name;
1086     DWORD id = 0;
1087
1088     if(!isdigitW(*ptr))
1089         return;
1090
1091     while(*ptr && isdigitW(*ptr)) {
1092         id = id*10 + (*ptr-'0');
1093         ptr++;
1094     }
1095
1096     if(*ptr)
1097         return;
1098
1099     if(id >= array->length)
1100         array->length = id+1;
1101 }
1102
1103 static const builtin_prop_t Array_props[] = {
1104     {concatW,                Array_concat,               PROPF_METHOD|1},
1105     {joinW,                  Array_join,                 PROPF_METHOD|1},
1106     {lengthW,                Array_length,               0},
1107     {popW,                   Array_pop,                  PROPF_METHOD},
1108     {pushW,                  Array_push,                 PROPF_METHOD|1},
1109     {reverseW,               Array_reverse,              PROPF_METHOD},
1110     {shiftW,                 Array_shift,                PROPF_METHOD},
1111     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1112     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1113     {spliceW,                Array_splice,               PROPF_METHOD|2},
1114     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1115     {toStringW,              Array_toString,             PROPF_METHOD},
1116     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1117 };
1118
1119 static const builtin_info_t Array_info = {
1120     JSCLASS_ARRAY,
1121     {NULL, Array_value, 0},
1122     sizeof(Array_props)/sizeof(*Array_props),
1123     Array_props,
1124     Array_destructor,
1125     Array_on_put
1126 };
1127
1128 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1129         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1130 {
1131     jsdisp_t *obj;
1132     VARIANT *arg_var;
1133     DWORD i;
1134     HRESULT hres;
1135
1136     TRACE("\n");
1137
1138     switch(flags) {
1139     case DISPATCH_METHOD:
1140     case DISPATCH_CONSTRUCT: {
1141         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1142             if(V_I4(arg_var) < 0)
1143                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1144
1145             hres = create_array(ctx, V_I4(arg_var), &obj);
1146             if(FAILED(hres))
1147                 return hres;
1148
1149             var_set_jsdisp(retv, obj);
1150             return S_OK;
1151         }
1152
1153         hres = create_array(ctx, arg_cnt(dp), &obj);
1154         if(FAILED(hres))
1155             return hres;
1156
1157         for(i=0; i < arg_cnt(dp); i++) {
1158             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei, caller);
1159             if(FAILED(hres))
1160                 break;
1161         }
1162         if(FAILED(hres)) {
1163             jsdisp_release(obj);
1164             return hres;
1165         }
1166
1167         var_set_jsdisp(retv, obj);
1168         break;
1169     }
1170     default:
1171         FIXME("unimplemented flags: %x\n", flags);
1172         return E_NOTIMPL;
1173     }
1174
1175     return S_OK;
1176 }
1177
1178 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1179 {
1180     ArrayInstance *array;
1181     HRESULT hres;
1182
1183     array = heap_alloc_zero(sizeof(ArrayInstance));
1184     if(!array)
1185         return E_OUTOFMEMORY;
1186
1187     if(object_prototype)
1188         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1189     else
1190         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1191
1192     if(FAILED(hres)) {
1193         heap_free(array);
1194         return hres;
1195     }
1196
1197     *ret = array;
1198     return S_OK;
1199 }
1200
1201 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1202 {
1203     ArrayInstance *array;
1204     HRESULT hres;
1205
1206     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1207
1208     hres = alloc_array(ctx, object_prototype, &array);
1209     if(FAILED(hres))
1210         return hres;
1211
1212     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1213
1214     jsdisp_release(&array->dispex);
1215     return hres;
1216 }
1217
1218 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1219 {
1220     ArrayInstance *array;
1221     HRESULT hres;
1222
1223     hres = alloc_array(ctx, NULL, &array);
1224     if(FAILED(hres))
1225         return hres;
1226
1227     array->length = length;
1228
1229     *ret = &array->dispex;
1230     return S_OK;
1231 }