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     DispatchEx 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, DispatchEx **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, IDS_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(DispatchEx *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, NULL/*FIXME*/);
 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(V_VT(&num) == VT_I4)
 137             len = V_I4(&num);
 138         else
 139             len = floor(V_R8(&num));
 140
 141         if(len!=(DWORD)len)
 142             return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
 143
 144         for(i=len; i<This->length; i++) {
 145             hres = jsdisp_delete_idx(&This->dispex, i);
 146             if(FAILED(hres))
 147                 return hres;
 148         }
 149
 150         This->length = len;
 151         break;
 152     }
 153     default:
 154         FIXME("unimplemented flags %x\n", flags);
 155         return E_NOTIMPL;
 156     }
 157
 158     return S_OK;
 159 }
 160
 161 static HRESULT concat_array(DispatchEx *array, ArrayInstance *obj, DWORD *len,
 162         jsexcept_t *ei, IServiceProvider *caller)
 163 {
 164     VARIANT var;
 165     DWORD i;
 166     HRESULT hres;
 167
 168     for(i=0; i < obj->length; i++) {
 169         hres = jsdisp_propget_idx(&obj->dispex, i, &var, ei, caller);
 170         if(hres == DISP_E_UNKNOWNNAME)
 171             continue;
 172         if(FAILED(hres))
 173             return hres;
 174
 175         hres = jsdisp_propput_idx(array, *len+i, &var, ei, caller);
 176         VariantClear(&var);
 177         if(FAILED(hres))
 178             return hres;
 179     }
 180
 181     *len += obj->length;
 182     return S_OK;
 183 }
 184
 185 static HRESULT concat_obj(DispatchEx *array, IDispatch *obj, DWORD *len, jsexcept_t *ei, IServiceProvider *caller)
 186 {
 187     DispatchEx *jsobj;
 188     VARIANT var;
 189     HRESULT hres;
 190
 191     jsobj = iface_to_jsdisp((IUnknown*)obj);
 192     if(jsobj) {
 193         if(is_class(jsobj, JSCLASS_ARRAY)) {
 194             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei, caller);
 195             jsdisp_release(jsobj);
 196             return hres;
 197         }
 198         jsdisp_release(jsobj);
 199     }
 200
 201     V_VT(&var) = VT_DISPATCH;
 202     V_DISPATCH(&var) = obj;
 203     return jsdisp_propput_idx(array, (*len)++, &var, ei, caller);
 204 }
 205
 206 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 207         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 208 {
 209     DispatchEx *ret;
 210     DWORD len = 0;
 211     HRESULT hres;
 212
 213     TRACE("\n");
 214
 215     hres = create_array(ctx, 0, &ret);
 216     if(FAILED(hres))
 217         return hres;
 218
 219     hres = concat_obj(ret, jsthis->u.disp, &len, ei, caller);
 220     if(SUCCEEDED(hres)) {
 221         VARIANT *arg;
 222         DWORD i;
 223
 224         for(i=0; i < arg_cnt(dp); i++) {
 225             arg = get_arg(dp, i);
 226             if(V_VT(arg) == VT_DISPATCH)
 227                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei, caller);
 228             else
 229                 hres = jsdisp_propput_idx(ret, len++, arg, ei, caller);
 230             if(FAILED(hres))
 231                 break;
 232         }
 233     }
 234
 235     if(FAILED(hres))
 236         return hres;
 237
 238     if(retv) {
 239         V_VT(retv) = VT_DISPATCH;
 240         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret);
 241     }else {
 242         jsdisp_release(ret);
 243     }
 244     return S_OK;
 245 }
 246
 247 static HRESULT array_join(script_ctx_t *ctx, DispatchEx *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 248         jsexcept_t *ei, IServiceProvider *caller)
 249 {
 250     BSTR *str_tab, ret = NULL;
 251     VARIANT var;
 252     DWORD i;
 253     HRESULT hres = E_FAIL;
 254
 255     if(!length) {
 256         if(retv) {
 257             V_VT(retv) = VT_BSTR;
 258             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 259             if(!V_BSTR(retv))
 260                 return E_OUTOFMEMORY;
 261         }
 262         return S_OK;
 263     }
 264
 265     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 266     if(!str_tab)
 267         return E_OUTOFMEMORY;
 268
 269     for(i=0; i < length; i++) {
 270         hres = jsdisp_propget_idx(array, i, &var, ei, caller);
 271         if(FAILED(hres))
 272             break;
 273
 274         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 275             hres = to_string(ctx, &var, ei, str_tab+i);
 276         VariantClear(&var);
 277         if(FAILED(hres))
 278             break;
 279     }
 280
 281     if(SUCCEEDED(hres)) {
 282         DWORD seplen = 0, len = 0;
 283         WCHAR *ptr;
 284
 285         seplen = strlenW(sep);
 286
 287         if(str_tab[0])
 288             len = SysStringLen(str_tab[0]);
 289         for(i=1; i < length; i++)
 290             len += seplen + SysStringLen(str_tab[i]);
 291
 292         ret = SysAllocStringLen(NULL, len);
 293         if(ret) {
 294             DWORD tmplen = 0;
 295
 296             if(str_tab[0]) {
 297                 tmplen = SysStringLen(str_tab[0]);
 298                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 299             }
 300
 301             ptr = ret + tmplen;
 302             for(i=1; i < length; i++) {
 303                 if(seplen) {
 304                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 305                     ptr += seplen;
 306                 }
 307
 308                 if(str_tab[i]) {
 309                     tmplen = SysStringLen(str_tab[i]);
 310                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 311                     ptr += tmplen;
 312                 }
 313             }
 314             *ptr=0;
 315         }else {
 316             hres = E_OUTOFMEMORY;
 317         }
 318     }
 319
 320     for(i=0; i < length; i++)
 321         SysFreeString(str_tab[i]);
 322     heap_free(str_tab);
 323     if(FAILED(hres))
 324         return hres;
 325
 326     TRACE("= %s\n", debugstr_w(ret));
 327
 328     if(retv) {
 329         if(!ret) {
 330             ret = SysAllocStringLen(NULL, 0);
 331             if(!ret)
 332                 return E_OUTOFMEMORY;
 333         }
 334
 335         V_VT(retv) = VT_BSTR;
 336         V_BSTR(retv) = ret;
 337     }else {
 338         SysFreeString(ret);
 339     }
 340
 341     return S_OK;
 342 }
 343
 344 /* ECMA-262 3rd Edition    15.4.4.5 */
 345 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 346         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 347 {
 348     DispatchEx *jsthis;
 349     DWORD length;
 350     HRESULT hres;
 351
 352     TRACE("\n");
 353
 354     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 355     if(FAILED(hres))
 356         return hres;
 357
 358     if(arg_cnt(dp)) {
 359         BSTR sep;
 360
 361         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 362         if(FAILED(hres))
 363             return hres;
 364
 365         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 366
 367         SysFreeString(sep);
 368     }else {
 369         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 370     }
 371
 372     return hres;
 373 }
 374
 375 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 376         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 377 {
 378     DispatchEx *jsthis;
 379     VARIANT val;
 380     DWORD length;
 381     HRESULT hres;
 382
 383     TRACE("\n");
 384
 385     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 386     if(FAILED(hres))
 387         return hres;
 388
 389     if(!length) {
 390         hres = set_length(jsthis, ei, 0);
 391         if(FAILED(hres))
 392             return hres;
 393
 394         if(retv)
 395             V_VT(retv) = VT_EMPTY;
 396         return S_OK;
 397     }
 398
 399     length--;
 400     hres = jsdisp_propget_idx(jsthis, length, &val, ei, caller);
 401     if(SUCCEEDED(hres)) {
 402         hres = jsdisp_delete_idx(jsthis, length);
 403     } else if(hres == DISP_E_UNKNOWNNAME) {
 404         V_VT(&val) = VT_EMPTY;
 405         hres = S_OK;
 406     } else
 407         return hres;
 408
 409     if(SUCCEEDED(hres))
 410         hres = set_length(jsthis, ei, length);
 411
 412     if(FAILED(hres)) {
 413         VariantClear(&val);
 414         return hres;
 415     }
 416
 417     if(retv)
 418         *retv = val;
 419     else
 420         VariantClear(&val);
 421
 422     return S_OK;
 423 }
 424
 425 /* ECMA-262 3rd Edition    15.4.4.7 */
 426 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 427         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 428 {
 429     DispatchEx *jsthis;
 430     DWORD length = 0;
 431     int i, n;
 432     HRESULT hres;
 433
 434     TRACE("\n");
 435
 436     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 437     if(FAILED(hres))
 438         return hres;
 439
 440     n = arg_cnt(dp);
 441     for(i=0; i < n; i++) {
 442         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei, sp);
 443         if(FAILED(hres))
 444             return hres;
 445     }
 446
 447     hres = set_length(jsthis, ei, length+n);
 448     if(FAILED(hres))
 449         return hres;
 450
 451     if(retv) {
 452         V_VT(retv) = VT_I4;
 453         V_I4(retv) = length+n;
 454     }
 455     return S_OK;
 456 }
 457
 458 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 459         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 460 {
 461     DispatchEx *jsthis;
 462     DWORD length, k, l;
 463     VARIANT v1, v2;
 464     HRESULT hres1, hres2;
 465
 466     TRACE("\n");
 467
 468     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 469     if(FAILED(hres1))
 470         return hres1;
 471
 472     for(k=0; k<length/2; k++) {
 473         l = length-k-1;
 474
 475         hres1 = jsdisp_propget_idx(jsthis, k, &v1, ei, sp);
 476         if(FAILED(hres1))
 477             return hres1;
 478
 479         hres2 = jsdisp_propget_idx(jsthis, l, &v2, ei, sp);
 480         if(FAILED(hres2)) {
 481             VariantClear(&v1);
 482             return hres2;
 483         }
 484
 485         if(hres1 == DISP_E_UNKNOWNNAME)
 486             hres1 = jsdisp_delete_idx(jsthis, l);
 487         else
 488             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei, sp);
 489
 490         if(FAILED(hres1)) {
 491             VariantClear(&v1);
 492             VariantClear(&v2);
 493             return hres1;
 494         }
 495
 496         if(hres2 == DISP_E_UNKNOWNNAME)
 497             hres2 = jsdisp_delete_idx(jsthis, k);
 498         else
 499             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei, sp);
 500
 501         if(FAILED(hres2)) {
 502             VariantClear(&v2);
 503             return hres2;
 504         }
 505     }
 506
 507     if(retv) {
 508         V_VT(retv) = VT_DISPATCH;
 509         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 510         IDispatch_AddRef(V_DISPATCH(retv));
 511     }
 512
 513     return S_OK;
 514 }
 515
 516 /* ECMA-262 3rd Edition    15.4.4.9 */
 517 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 518         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 519 {
 520     DispatchEx *jsthis;
 521     DWORD length = 0, i;
 522     VARIANT v, ret;
 523     HRESULT hres;
 524
 525     TRACE("\n");
 526
 527     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 528     if(FAILED(hres))
 529         return hres;
 530
 531     if(!length) {
 532         hres = set_length(jsthis, ei, 0);
 533         if(FAILED(hres))
 534             return hres;
 535     }
 536
 537     if(!length) {
 538         if(retv)
 539             V_VT(retv) = VT_EMPTY;
 540         return S_OK;
 541     }
 542
 543     hres = jsdisp_propget_idx(jsthis, 0, &ret, ei, caller);
 544     if(hres == DISP_E_UNKNOWNNAME) {
 545         V_VT(&ret) = VT_EMPTY;
 546         hres = S_OK;
 547     }
 548
 549     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 550         hres = jsdisp_propget_idx(jsthis, i, &v, ei, caller);
 551         if(hres == DISP_E_UNKNOWNNAME)
 552             hres = jsdisp_delete_idx(jsthis, i-1);
 553         else if(SUCCEEDED(hres))
 554             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei, caller);
 555     }
 556
 557     if(SUCCEEDED(hres)) {
 558         hres = jsdisp_delete_idx(jsthis, length-1);
 559         if(SUCCEEDED(hres))
 560             hres = set_length(jsthis, ei, length-1);
 561     }
 562
 563     if(SUCCEEDED(hres) && retv)
 564         *retv = ret;
 565     else
 566         VariantClear(&ret);
 567     return hres;
 568 }
 569
 570 /* ECMA-262 3rd Edition    15.4.4.10 */
 571 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 572         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 573 {
 574     DispatchEx *arr, *jsthis;
 575     VARIANT v;
 576     DOUBLE range;
 577     DWORD length, start, end, idx;
 578     HRESULT hres;
 579
 580     TRACE("\n");
 581
 582     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 583     if(FAILED(hres))
 584         return hres;
 585
 586     if(arg_cnt(dp)) {
 587         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 588         if(FAILED(hres))
 589             return hres;
 590
 591         if(V_VT(&v) == VT_I4)
 592             range = V_I4(&v);
 593         else
 594             range = floor(V_R8(&v));
 595
 596         if(-range>length || isnan(range)) start = 0;
 597         else if(range < 0) start = range+length;
 598         else if(range <= length) start = range;
 599         else start = length;
 600     }
 601     else start = 0;
 602
 603     if(arg_cnt(dp)>1) {
 604         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 605         if(FAILED(hres))
 606             return hres;
 607
 608         if(V_VT(&v) == VT_I4)
 609             range = V_I4(&v);
 610         else
 611             range = floor(V_R8(&v));
 612
 613         if(-range>length) end = 0;
 614         else if(range < 0) end = range+length;
 615         else if(range <= length) end = range;
 616         else end = length;
 617     }
 618     else end = length;
 619
 620     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 621     if(FAILED(hres))
 622         return hres;
 623
 624     for(idx=start; idx<end; idx++) {
 625         hres = jsdisp_propget_idx(jsthis, idx, &v, ei, sp);
 626         if(hres == DISP_E_UNKNOWNNAME)
 627             continue;
 628
 629         if(SUCCEEDED(hres)) {
 630             hres = jsdisp_propput_idx(arr, idx-start, &v, ei, sp);
 631             VariantClear(&v);
 632         }
 633
 634         if(FAILED(hres)) {
 635             jsdisp_release(arr);
 636             return hres;
 637         }
 638     }
 639
 640     if(retv) {
 641         V_VT(retv) = VT_DISPATCH;
 642         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(arr);
 643     }
 644     else
 645         jsdisp_release(arr);
 646
 647     return S_OK;
 648 }
 649
 650 static HRESULT sort_cmp(script_ctx_t *ctx, DispatchEx *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei,
 651         IServiceProvider *caller, 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, caller);
 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(is_num_vt(V_VT(v1))) {
 678         if(is_num_vt(V_VT(v2))) {
 679             DOUBLE d = num_val(v1)-num_val(v2);
 680             if(d > 0.0)
 681                 *cmp = 1;
 682             else if(d < -0.0)
 683                 *cmp = -1;
 684             else
 685                 *cmp = 0;
 686         }else {
 687             *cmp = -1;
 688         }
 689     }else if(is_num_vt(V_VT(v2))) {
 690         *cmp = 1;
 691     }else if(V_VT(v1) == VT_BSTR) {
 692         if(V_VT(v2) == VT_BSTR)
 693             *cmp = strcmpW(V_BSTR(v1), V_BSTR(v2));
 694         else
 695             *cmp = -1;
 696     }else if(V_VT(v2) == VT_BSTR) {
 697         *cmp = 1;
 698     }else {
 699         *cmp = 0;
 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, IServiceProvider *caller)
 708 {
 709     DispatchEx *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             V_VT(retv) = VT_DISPATCH;
 749             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 750             IDispatch_AddRef(V_DISPATCH(retv));
 751         }
 752         return S_OK;
 753     }
 754
 755     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 756     if(vtab) {
 757         for(i=0; i<length; i++) {
 758             hres = jsdisp_propget_idx(jsthis, i, vtab+i, ei, caller);
 759             if(FAILED(hres) && hres != DISP_E_UNKNOWNNAME) {
 760                 WARN("Could not get elem %d: %08x\n", i, hres);
 761                 break;
 762             }
 763         }
 764     }else {
 765         hres = E_OUTOFMEMORY;
 766     }
 767
 768     if(SUCCEEDED(hres)) {
 769         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 770         if(!sorttab)
 771             hres = E_OUTOFMEMORY;
 772     }
 773
 774     /* merge-sort */
 775     if(SUCCEEDED(hres)) {
 776         VARIANT *tmpv, **tmpbuf;
 777         INT cmp;
 778
 779         tmpbuf = sorttab + length;
 780         for(i=0; i < length; i++)
 781             sorttab[i] = vtab+i;
 782
 783         for(i=0; i < length/2; i++) {
 784             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, caller, &cmp);
 785             if(FAILED(hres))
 786                 break;
 787
 788             if(cmp < 0) {
 789                 tmpv = sorttab[2*i];
 790                 sorttab[2*i] = sorttab[2*i+1];
 791                 sorttab[2*i+1] = tmpv;
 792             }
 793         }
 794
 795         if(SUCCEEDED(hres)) {
 796             DWORD k, a, b, bend;
 797
 798             for(k=2; k < length; k *= 2) {
 799                 for(i=0; i+k < length; i += 2*k) {
 800                     a = b = 0;
 801                     if(i+2*k <= length)
 802                         bend = k;
 803                     else
 804                         bend = length - (i+k);
 805
 806                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 807
 808                     while(a < k && b < bend) {
 809                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, caller, &cmp);
 810                         if(FAILED(hres))
 811                             break;
 812
 813                         if(cmp < 0) {
 814                             sorttab[i+a+b] = tmpbuf[a];
 815                             a++;
 816                         }else {
 817                             sorttab[i+a+b] = sorttab[i+k+b];
 818                             b++;
 819                         }
 820                     }
 821
 822                     if(FAILED(hres))
 823                         break;
 824
 825                     if(a < k)
 826                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 827                 }
 828
 829                 if(FAILED(hres))
 830                     break;
 831             }
 832         }
 833
 834         for(i=0; SUCCEEDED(hres) && i < length; i++)
 835             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei, caller);
 836     }
 837
 838     if(vtab) {
 839         for(i=0; i < length; i++)
 840             VariantClear(vtab+i);
 841         heap_free(vtab);
 842     }
 843     heap_free(sorttab);
 844     if(cmp_func)
 845         jsdisp_release(cmp_func);
 846
 847     if(FAILED(hres))
 848         return hres;
 849
 850     if(retv) {
 851         V_VT(retv) = VT_DISPATCH;
 852         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 853         IDispatch_AddRef(V_DISPATCH(retv));
 854     }
 855
 856     return S_OK;
 857 }
 858
 859 /* ECMA-262 3rd Edition    15.4.4.12 */
 860 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 861         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 862 {
 863     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 864     DispatchEx *ret_array = NULL, *jsthis;
 865     VARIANT v;
 866     HRESULT hres = S_OK;
 867
 868     TRACE("\n");
 869
 870     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 871     if(FAILED(hres))
 872         return hres;
 873
 874     argc = arg_cnt(dp);
 875     if(argc >= 1) {
 876         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 877         if(FAILED(hres))
 878             return hres;
 879
 880         if(V_VT(&v) == VT_I4) {
 881             if(V_I4(&v) >= 0)
 882                 start = min(V_I4(&v), length);
 883             else
 884                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 885         }else {
 886             start = V_R8(&v) < 0.0 ? 0 : length;
 887         }
 888     }
 889
 890     if(argc >= 2) {
 891         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 892         if(FAILED(hres))
 893             return hres;
 894
 895         if(V_VT(&v) == VT_I4) {
 896             if(V_I4(&v) > 0)
 897                 delete_cnt = min(V_I4(&v), length-start);
 898         }else if(V_R8(&v) > 0.0) {
 899             delete_cnt = length-start;
 900         }
 901
 902         add_args = argc-2;
 903     }
 904
 905     if(retv) {
 906         hres = create_array(ctx, 0, &ret_array);
 907         if(FAILED(hres))
 908             return hres;
 909
 910         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 911             hres = jsdisp_propget_idx(jsthis, start+i, &v, ei, caller);
 912             if(hres == DISP_E_UNKNOWNNAME)
 913                 hres = S_OK;
 914             else if(SUCCEEDED(hres))
 915                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 916         }
 917
 918         if(SUCCEEDED(hres)) {
 919             V_VT(&v) = VT_I4;
 920             V_I4(&v) = delete_cnt;
 921
 922             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei, caller);
 923         }
 924     }
 925
 926     if(add_args < delete_cnt) {
 927         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 928             hres = jsdisp_propget_idx(jsthis, i+delete_cnt, &v, ei, caller);
 929             if(hres == DISP_E_UNKNOWNNAME)
 930                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 931             else if(SUCCEEDED(hres))
 932                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 933         }
 934
 935         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 936             hres = jsdisp_delete_idx(jsthis, i-1);
 937     }else if(add_args > delete_cnt) {
 938         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 939             hres = jsdisp_propget_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 940             if(hres == DISP_E_UNKNOWNNAME)
 941                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 942             else if(SUCCEEDED(hres))
 943                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 944         }
 945     }
 946
 947     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 948         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 949
 950     if(SUCCEEDED(hres)) {
 951         V_VT(&v) = VT_I4;
 952         V_I4(&v) = length-delete_cnt+add_args;
 953         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei, caller);
 954     }
 955
 956     if(FAILED(hres)) {
 957         if(ret_array)
 958             jsdisp_release(ret_array);
 959         return hres;
 960     }
 961
 962     if(retv) {
 963         V_VT(retv) = VT_DISPATCH;
 964         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret_array);
 965     }
 966     return S_OK;
 967 }
 968
 969 /* ECMA-262 3rd Edition    15.4.4.2 */
 970 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 971         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 972 {
 973     ArrayInstance *array;
 974
 975     TRACE("\n");
 976
 977     array = array_this(jsthis);
 978     if(!array)
 979         return throw_type_error(ctx, ei, IDS_ARRAY_EXPECTED, NULL);
 980
 981     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 982 }
 983
 984 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 985         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 986 {
 987     FIXME("\n");
 988     return E_NOTIMPL;
 989 }
 990
 991 /* ECMA-262 3rd Edition    15.4.4.13 */
 992 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 993         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 994 {
 995     DispatchEx *jsthis;
 996     WCHAR buf[14], *buf_end, *str;
 997     DWORD argc, i, length;
 998     VARIANT var;
 999     DISPID id;
1000     HRESULT hres;
1001
1002     TRACE("\n");
1003
1004     hres = get_length(ctx, vthis, ei, &jsthis, &length);
1005     if(FAILED(hres))
1006         return hres;
1007
1008     argc = arg_cnt(dp);
1009     if(argc) {
1010         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1011         *buf_end-- = 0;
1012         i = length;
1013
1014         while(i--) {
1015             str = idx_to_str(i, buf_end);
1016
1017             hres = jsdisp_get_id(jsthis, str, 0, &id);
1018             if(SUCCEEDED(hres)) {
1019                 hres = jsdisp_propget(jsthis, id, &var, ei, caller);
1020                 if(FAILED(hres))
1021                     return hres;
1022
1023                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
1024                 VariantClear(&var);
1025             }else if(hres == DISP_E_UNKNOWNNAME) {
1026                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1027             }
1028         }
1029
1030         if(FAILED(hres))
1031             return hres;
1032     }
1033
1034     for(i=0; i<argc; i++) {
1035         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1036         if(FAILED(hres))
1037             return hres;
1038     }
1039
1040     if(argc) {
1041         length += argc;
1042         hres = set_length(jsthis, ei, length);
1043         if(FAILED(hres))
1044             return hres;
1045     }
1046
1047     if(retv) {
1048         if(ctx->version < 2) {
1049             V_VT(retv) = VT_EMPTY;
1050         }else {
1051             V_VT(retv) = VT_I4;
1052             V_I4(retv) = length;
1053         }
1054     }
1055     return S_OK;
1056 }
1057
1058 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1059         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1060 {
1061     TRACE("\n");
1062
1063     switch(flags) {
1064     case INVOKE_FUNC:
1065         return throw_type_error(ctx, ei, IDS_NOT_FUNC, NULL);
1066     case INVOKE_PROPERTYGET:
1067         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1068     default:
1069         FIXME("unimplemented flags %x\n", flags);
1070         return E_NOTIMPL;
1071     }
1072
1073     return S_OK;
1074 }
1075
1076 static void Array_destructor(DispatchEx *dispex)
1077 {
1078     heap_free(dispex);
1079 }
1080
1081 static void Array_on_put(DispatchEx *dispex, const WCHAR *name)
1082 {
1083     ArrayInstance *array = (ArrayInstance*)dispex;
1084     const WCHAR *ptr = name;
1085     DWORD id = 0;
1086
1087     if(!isdigitW(*ptr))
1088         return;
1089
1090     while(*ptr && isdigitW(*ptr)) {
1091         id = id*10 + (*ptr-'0');
1092         ptr++;
1093     }
1094
1095     if(*ptr)
1096         return;
1097
1098     if(id >= array->length)
1099         array->length = id+1;
1100 }
1101
1102 static const builtin_prop_t Array_props[] = {
1103     {concatW,                Array_concat,               PROPF_METHOD|1},
1104     {joinW,                  Array_join,                 PROPF_METHOD|1},
1105     {lengthW,                Array_length,               0},
1106     {popW,                   Array_pop,                  PROPF_METHOD},
1107     {pushW,                  Array_push,                 PROPF_METHOD|1},
1108     {reverseW,               Array_reverse,              PROPF_METHOD},
1109     {shiftW,                 Array_shift,                PROPF_METHOD},
1110     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1111     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1112     {spliceW,                Array_splice,               PROPF_METHOD|2},
1113     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1114     {toStringW,              Array_toString,             PROPF_METHOD},
1115     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1116 };
1117
1118 static const builtin_info_t Array_info = {
1119     JSCLASS_ARRAY,
1120     {NULL, Array_value, 0},
1121     sizeof(Array_props)/sizeof(*Array_props),
1122     Array_props,
1123     Array_destructor,
1124     Array_on_put
1125 };
1126
1127 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1128         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1129 {
1130     DispatchEx *obj;
1131     VARIANT *arg_var;
1132     DWORD i;
1133     HRESULT hres;
1134
1135     TRACE("\n");
1136
1137     switch(flags) {
1138     case DISPATCH_METHOD:
1139     case DISPATCH_CONSTRUCT: {
1140         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1141             if(V_I4(arg_var) < 0)
1142                 return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
1143
1144             hres = create_array(ctx, V_I4(arg_var), &obj);
1145             if(FAILED(hres))
1146                 return hres;
1147
1148             V_VT(retv) = VT_DISPATCH;
1149             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(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         V_VT(retv) = VT_DISPATCH;
1168         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1169         break;
1170     }
1171     default:
1172         FIXME("unimplemented flags: %x\n", flags);
1173         return E_NOTIMPL;
1174     }
1175
1176     return S_OK;
1177 }
1178
1179 static HRESULT alloc_array(script_ctx_t *ctx, DispatchEx *object_prototype, ArrayInstance **ret)
1180 {
1181     ArrayInstance *array;
1182     HRESULT hres;
1183
1184     array = heap_alloc_zero(sizeof(ArrayInstance));
1185     if(!array)
1186         return E_OUTOFMEMORY;
1187
1188     if(object_prototype)
1189         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1190     else
1191         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1192
1193     if(FAILED(hres)) {
1194         heap_free(array);
1195         return hres;
1196     }
1197
1198     *ret = array;
1199     return S_OK;
1200 }
1201
1202 HRESULT create_array_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
1203 {
1204     ArrayInstance *array;
1205     HRESULT hres;
1206
1207     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1208
1209     hres = alloc_array(ctx, object_prototype, &array);
1210     if(FAILED(hres))
1211         return hres;
1212
1213     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1214
1215     jsdisp_release(&array->dispex);
1216     return hres;
1217 }
1218
1219 HRESULT create_array(script_ctx_t *ctx, DWORD length, DispatchEx **ret)
1220 {
1221     ArrayInstance *array;
1222     HRESULT hres;
1223
1224     hres = alloc_array(ctx, NULL, &array);
1225     if(FAILED(hres))
1226         return hres;
1227
1228     array->length = length;
1229
1230     *ret = &array->dispex;
1231     return S_OK;
1232 }