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