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
 592         if(FAILED(hres)) {
 593             jsdisp_release(arr);
 594             return hres;
 595         }
 596     }
 597
 598     if(retv) {
 599         V_VT(retv) = VT_DISPATCH;
 600         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(arr);
 601     }
 602     else
 603         jsdisp_release(arr);
 604
 605     return S_OK;
 606 }
 607
 608 static HRESULT sort_cmp(script_ctx_t *ctx, DispatchEx *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei,
 609         IServiceProvider *caller, INT *cmp)
 610 {
 611     HRESULT hres;
 612
 613     if(cmp_func) {
 614         VARIANTARG args[2];
 615         DISPPARAMS dp = {args, NULL, 2, 0};
 616         VARIANT tmp;
 617         VARIANT res;
 618
 619         args[0] = *v2;
 620         args[1] = *v1;
 621
 622         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei, caller);
 623         if(FAILED(hres))
 624             return hres;
 625
 626         hres = to_number(ctx, &res, ei, &tmp);
 627         VariantClear(&res);
 628         if(FAILED(hres))
 629             return hres;
 630
 631         if(V_VT(&tmp) == VT_I4)
 632             *cmp = V_I4(&tmp);
 633         else
 634             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 635     }else if(is_num_vt(V_VT(v1))) {
 636         if(is_num_vt(V_VT(v2))) {
 637             DOUBLE d = num_val(v1)-num_val(v2);
 638             if(d > 0.0)
 639                 *cmp = 1;
 640             else if(d < -0.0)
 641                 *cmp = -1;
 642             else
 643                 *cmp = 0;
 644         }else {
 645             *cmp = -1;
 646         }
 647     }else if(is_num_vt(V_VT(v2))) {
 648         *cmp = 1;
 649     }else if(V_VT(v1) == VT_BSTR) {
 650         if(V_VT(v2) == VT_BSTR)
 651             *cmp = strcmpW(V_BSTR(v1), V_BSTR(v2));
 652         else
 653             *cmp = -1;
 654     }else if(V_VT(v2) == VT_BSTR) {
 655         *cmp = 1;
 656     }else {
 657         *cmp = 0;
 658     }
 659
 660     return S_OK;
 661 }
 662
 663 /* ECMA-262 3rd Edition    15.4.4.11 */
 664 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 665         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 666 {
 667     DispatchEx *cmp_func = NULL;
 668     VARIANT *vtab, **sorttab = NULL;
 669     DWORD length;
 670     DWORD i;
 671     HRESULT hres = S_OK;
 672
 673     TRACE("\n");
 674
 675     if(is_vclass(jsthis, JSCLASS_ARRAY)) {
 676         length = array_from_vdisp(jsthis)->length;
 677     }else {
 678         FIXME("unsupported this not array\n");
 679         return E_NOTIMPL;
 680     }
 681
 682     if(arg_cnt(dp) > 1) {
 683         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 684         return E_FAIL;
 685     }
 686
 687     if(arg_cnt(dp) == 1) {
 688         VARIANT *arg = get_arg(dp, 0);
 689
 690         if(V_VT(arg) != VT_DISPATCH) {
 691             WARN("arg is not dispatch\n");
 692             return E_FAIL;
 693         }
 694
 695
 696         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 697         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 698             WARN("cmp_func is not a function\n");
 699             if(cmp_func)
 700                 jsdisp_release(cmp_func);
 701             return E_FAIL;
 702         }
 703     }
 704
 705     if(!length) {
 706         if(cmp_func)
 707             jsdisp_release(cmp_func);
 708         if(retv) {
 709             V_VT(retv) = VT_DISPATCH;
 710             V_DISPATCH(retv) = jsthis->u.disp;
 711             IDispatch_AddRef(jsthis->u.disp);
 712         }
 713         return S_OK;
 714     }
 715
 716     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 717     if(vtab) {
 718         for(i=0; i<length; i++) {
 719             hres = jsdisp_propget_idx(jsthis->u.jsdisp, i, vtab+i, ei, caller);
 720             if(FAILED(hres) && hres != DISP_E_UNKNOWNNAME) {
 721                 WARN("Could not get elem %d: %08x\n", i, hres);
 722                 break;
 723             }
 724         }
 725     }else {
 726         hres = E_OUTOFMEMORY;
 727     }
 728
 729     if(SUCCEEDED(hres)) {
 730         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 731         if(!sorttab)
 732             hres = E_OUTOFMEMORY;
 733     }
 734
 735     /* merge-sort */
 736     if(SUCCEEDED(hres)) {
 737         VARIANT *tmpv, **tmpbuf;
 738         INT cmp;
 739
 740         tmpbuf = sorttab + length;
 741         for(i=0; i < length; i++)
 742             sorttab[i] = vtab+i;
 743
 744         for(i=0; i < length/2; i++) {
 745             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, caller, &cmp);
 746             if(FAILED(hres))
 747                 break;
 748
 749             if(cmp < 0) {
 750                 tmpv = sorttab[2*i];
 751                 sorttab[2*i] = sorttab[2*i+1];
 752                 sorttab[2*i+1] = tmpv;
 753             }
 754         }
 755
 756         if(SUCCEEDED(hres)) {
 757             DWORD k, a, b, bend;
 758
 759             for(k=2; k < length; k *= 2) {
 760                 for(i=0; i+k < length; i += 2*k) {
 761                     a = b = 0;
 762                     if(i+2*k <= length)
 763                         bend = k;
 764                     else
 765                         bend = length - (i+k);
 766
 767                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 768
 769                     while(a < k && b < bend) {
 770                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, caller, &cmp);
 771                         if(FAILED(hres))
 772                             break;
 773
 774                         if(cmp < 0) {
 775                             sorttab[i+a+b] = tmpbuf[a];
 776                             a++;
 777                         }else {
 778                             sorttab[i+a+b] = sorttab[i+k+b];
 779                             b++;
 780                         }
 781                     }
 782
 783                     if(FAILED(hres))
 784                         break;
 785
 786                     if(a < k)
 787                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 788                 }
 789
 790                 if(FAILED(hres))
 791                     break;
 792             }
 793         }
 794
 795         for(i=0; SUCCEEDED(hres) && i < length; i++)
 796             hres = jsdisp_propput_idx(jsthis->u.jsdisp, i, sorttab[i], ei, caller);
 797     }
 798
 799     if(vtab) {
 800         for(i=0; i < length; i++)
 801             VariantClear(vtab+i);
 802         heap_free(vtab);
 803     }
 804     heap_free(sorttab);
 805     if(cmp_func)
 806         jsdisp_release(cmp_func);
 807
 808     if(FAILED(hres))
 809         return hres;
 810
 811     if(retv) {
 812         V_VT(retv) = VT_DISPATCH;
 813         V_DISPATCH(retv) = jsthis->u.disp;
 814         IDispatch_AddRef(jsthis->u.disp);
 815     }
 816
 817     return S_OK;
 818 }
 819
 820 /* ECMA-262 3rd Edition    15.4.4.12 */
 821 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 822         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 823 {
 824     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 825     DispatchEx *ret_array = NULL, *jsthis;
 826     VARIANT v;
 827     HRESULT hres = S_OK;
 828
 829     TRACE("\n");
 830
 831     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 832     if(FAILED(hres))
 833         return hres;
 834
 835     argc = arg_cnt(dp);
 836     if(argc >= 1) {
 837         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 838         if(FAILED(hres))
 839             return hres;
 840
 841         if(V_VT(&v) == VT_I4) {
 842             if(V_I4(&v) >= 0)
 843                 start = min(V_I4(&v), length);
 844             else
 845                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 846         }else {
 847             start = V_R8(&v) < 0.0 ? 0 : length;
 848         }
 849     }
 850
 851     if(argc >= 2) {
 852         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 853         if(FAILED(hres))
 854             return hres;
 855
 856         if(V_VT(&v) == VT_I4) {
 857             if(V_I4(&v) > 0)
 858                 delete_cnt = min(V_I4(&v), length-start);
 859         }else if(V_R8(&v) > 0.0) {
 860             delete_cnt = length-start;
 861         }
 862
 863         add_args = argc-2;
 864     }
 865
 866     if(retv) {
 867         hres = create_array(ctx, 0, &ret_array);
 868         if(FAILED(hres))
 869             return hres;
 870
 871         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 872             hres = jsdisp_propget_idx(jsthis, start+i, &v, ei, caller);
 873             if(hres == DISP_E_UNKNOWNNAME)
 874                 hres = S_OK;
 875             else if(SUCCEEDED(hres))
 876                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 877         }
 878
 879         if(SUCCEEDED(hres)) {
 880             V_VT(&v) = VT_I4;
 881             V_I4(&v) = delete_cnt;
 882
 883             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei, caller);
 884         }
 885     }
 886
 887     if(add_args < delete_cnt) {
 888         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 889             hres = jsdisp_propget_idx(jsthis, i+delete_cnt, &v, ei, caller);
 890             if(hres == DISP_E_UNKNOWNNAME)
 891                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 892             else if(SUCCEEDED(hres))
 893                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 894         }
 895
 896         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 897             hres = jsdisp_delete_idx(jsthis, i-1);
 898     }else if(add_args > delete_cnt) {
 899         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 900             hres = jsdisp_propget_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 901             if(hres == DISP_E_UNKNOWNNAME)
 902                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 903             else if(SUCCEEDED(hres))
 904                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 905         }
 906     }
 907
 908     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 909         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 910
 911     if(SUCCEEDED(hres)) {
 912         V_VT(&v) = VT_I4;
 913         V_I4(&v) = length-delete_cnt+add_args;
 914         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei, caller);
 915     }
 916
 917     if(FAILED(hres)) {
 918         if(ret_array)
 919             jsdisp_release(ret_array);
 920         return hres;
 921     }
 922
 923     if(retv) {
 924         V_VT(retv) = VT_DISPATCH;
 925         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret_array);
 926     }
 927     return S_OK;
 928 }
 929
 930 /* ECMA-262 3rd Edition    15.4.4.2 */
 931 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 932         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 933 {
 934     ArrayInstance *array;
 935
 936     TRACE("\n");
 937
 938     array = array_this(jsthis);
 939     if(!array)
 940         return throw_type_error(ctx, ei, IDS_ARRAY_EXPECTED, NULL);
 941
 942     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 943 }
 944
 945 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 946         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 947 {
 948     FIXME("\n");
 949     return E_NOTIMPL;
 950 }
 951
 952 /* ECMA-262 3rd Edition    15.4.4.13 */
 953 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 954         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 955 {
 956     DispatchEx *jsthis;
 957     WCHAR buf[14], *buf_end, *str;
 958     DWORD argc, i, length;
 959     VARIANT var;
 960     DISPID id;
 961     HRESULT hres;
 962
 963     TRACE("\n");
 964
 965     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 966     if(FAILED(hres))
 967         return hres;
 968
 969     argc = arg_cnt(dp);
 970     if(!argc) {
 971         if(retv)
 972             V_VT(retv) = VT_EMPTY;
 973         return S_OK;
 974     }
 975
 976     buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 977     *buf_end-- = 0;
 978     i = length;
 979
 980     while(i--) {
 981         str = idx_to_str(i, buf_end);
 982
 983         hres = jsdisp_get_id(jsthis, str, 0, &id);
 984         if(SUCCEEDED(hres)) {
 985             hres = jsdisp_propget(jsthis, id, &var, ei, caller);
 986             if(FAILED(hres))
 987                 return hres;
 988
 989             hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
 990             VariantClear(&var);
 991         }else if(hres == DISP_E_UNKNOWNNAME) {
 992             hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
 993         }
 994
 995         if(FAILED(hres))
 996             return hres;
 997     }
 998
 999     for(i=0; i<argc; i++) {
1000         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1001         if(FAILED(hres))
1002             return hres;
1003     }
1004
1005     hres = set_length(jsthis, ei, length+argc);
1006     if(FAILED(hres))
1007         return hres;
1008
1009     if(retv)
1010         V_VT(retv) = VT_EMPTY;
1011     return S_OK;
1012 }
1013
1014 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1015         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1016 {
1017     TRACE("\n");
1018
1019     switch(flags) {
1020     case INVOKE_FUNC:
1021         return throw_type_error(ctx, ei, IDS_NOT_FUNC, NULL);
1022     case INVOKE_PROPERTYGET:
1023         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1024     default:
1025         FIXME("unimplemented flags %x\n", flags);
1026         return E_NOTIMPL;
1027     }
1028
1029     return S_OK;
1030 }
1031
1032 static void Array_destructor(DispatchEx *dispex)
1033 {
1034     heap_free(dispex);
1035 }
1036
1037 static void Array_on_put(DispatchEx *dispex, const WCHAR *name)
1038 {
1039     ArrayInstance *array = (ArrayInstance*)dispex;
1040     const WCHAR *ptr = name;
1041     DWORD id = 0;
1042
1043     if(!isdigitW(*ptr))
1044         return;
1045
1046     while(*ptr && isdigitW(*ptr)) {
1047         id = id*10 + (*ptr-'0');
1048         ptr++;
1049     }
1050
1051     if(*ptr)
1052         return;
1053
1054     if(id >= array->length)
1055         array->length = id+1;
1056 }
1057
1058 static const builtin_prop_t Array_props[] = {
1059     {concatW,                Array_concat,               PROPF_METHOD|1},
1060     {joinW,                  Array_join,                 PROPF_METHOD|1},
1061     {lengthW,                Array_length,               0},
1062     {popW,                   Array_pop,                  PROPF_METHOD},
1063     {pushW,                  Array_push,                 PROPF_METHOD|1},
1064     {reverseW,               Array_reverse,              PROPF_METHOD},
1065     {shiftW,                 Array_shift,                PROPF_METHOD},
1066     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1067     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1068     {spliceW,                Array_splice,               PROPF_METHOD|2},
1069     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1070     {toStringW,              Array_toString,             PROPF_METHOD},
1071     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1072 };
1073
1074 static const builtin_info_t Array_info = {
1075     JSCLASS_ARRAY,
1076     {NULL, Array_value, 0},
1077     sizeof(Array_props)/sizeof(*Array_props),
1078     Array_props,
1079     Array_destructor,
1080     Array_on_put
1081 };
1082
1083 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1084         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1085 {
1086     DispatchEx *obj;
1087     VARIANT *arg_var;
1088     DWORD i;
1089     HRESULT hres;
1090
1091     TRACE("\n");
1092
1093     switch(flags) {
1094     case DISPATCH_METHOD:
1095     case DISPATCH_CONSTRUCT: {
1096         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1097             if(V_I4(arg_var) < 0)
1098                 return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
1099
1100             hres = create_array(ctx, V_I4(arg_var), &obj);
1101             if(FAILED(hres))
1102                 return hres;
1103
1104             V_VT(retv) = VT_DISPATCH;
1105             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1106             return S_OK;
1107         }
1108
1109         hres = create_array(ctx, arg_cnt(dp), &obj);
1110         if(FAILED(hres))
1111             return hres;
1112
1113         for(i=0; i < arg_cnt(dp); i++) {
1114             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei, caller);
1115             if(FAILED(hres))
1116                 break;
1117         }
1118         if(FAILED(hres)) {
1119             jsdisp_release(obj);
1120             return hres;
1121         }
1122
1123         V_VT(retv) = VT_DISPATCH;
1124         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1125         break;
1126     }
1127     default:
1128         FIXME("unimplemented flags: %x\n", flags);
1129         return E_NOTIMPL;
1130     }
1131
1132     return S_OK;
1133 }
1134
1135 static HRESULT alloc_array(script_ctx_t *ctx, DispatchEx *object_prototype, ArrayInstance **ret)
1136 {
1137     ArrayInstance *array;
1138     HRESULT hres;
1139
1140     array = heap_alloc_zero(sizeof(ArrayInstance));
1141     if(!array)
1142         return E_OUTOFMEMORY;
1143
1144     if(object_prototype)
1145         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1146     else
1147         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1148
1149     if(FAILED(hres)) {
1150         heap_free(array);
1151         return hres;
1152     }
1153
1154     *ret = array;
1155     return S_OK;
1156 }
1157
1158 HRESULT create_array_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
1159 {
1160     ArrayInstance *array;
1161     HRESULT hres;
1162
1163     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1164
1165     hres = alloc_array(ctx, object_prototype, &array);
1166     if(FAILED(hres))
1167         return hres;
1168
1169     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1170
1171     jsdisp_release(&array->dispex);
1172     return hres;
1173 }
1174
1175 HRESULT create_array(script_ctx_t *ctx, DWORD length, DispatchEx **ret)
1176 {
1177     ArrayInstance *array;
1178     HRESULT hres;
1179
1180     hres = alloc_array(ctx, NULL, &array);
1181     if(FAILED(hres))
1182         return hres;
1183
1184     array->length = length;
1185
1186     *ret = &array->dispex;
1187     return S_OK;
1188 }