dlls/jscript/array.c

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <math.h>
  20
  21 #include "jscript.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  26
  27 typedef struct {
  28     jsdisp_t dispex;
  29
  30     DWORD length;
  31 } ArrayInstance;
  32
  33 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  34 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  35 static const WCHAR joinW[] = {'j','o','i','n',0};
  36 static const WCHAR popW[] = {'p','o','p',0};
  37 static const WCHAR pushW[] = {'p','u','s','h',0};
  38 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  39 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  40 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  41 static const WCHAR sortW[] = {'s','o','r','t',0};
  42 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  43 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  44 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  45 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  46
  47 static const WCHAR default_separatorW[] = {',',0};
  48
  49 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  50 {
  51     return (ArrayInstance*)vdisp->u.jsdisp;
  52 }
  53
  54 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  55 {
  56     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  57 }
  58
  59 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsexcept_t *ei, jsdisp_t **jsthis, DWORD *ret)
  60 {
  61     ArrayInstance *array;
  62     VARIANT var;
  63     HRESULT hres;
  64
  65     array = array_this(vdisp);
  66     if(array) {
  67         *jsthis = &array->dispex;
  68         *ret = array->length;
  69         return S_OK;
  70     }
  71
  72     if(!is_jsdisp(vdisp))
  73         return throw_type_error(ctx, ei, JS_E_JSCRIPT_EXPECTED, NULL);
  74
  75     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &var, ei);
  76     if(FAILED(hres))
  77         return hres;
  78
  79     hres = to_uint32(ctx, &var, ei, ret);
  80     VariantClear(&var);
  81     if(FAILED(hres))
  82         return hres;
  83
  84     *jsthis = vdisp->u.jsdisp;
  85     return S_OK;
  86 }
  87
  88 static HRESULT set_length(jsdisp_t *obj, jsexcept_t *ei, DWORD length)
  89 {
  90     VARIANT var;
  91
  92     if(is_class(obj, JSCLASS_ARRAY)) {
  93         ((ArrayInstance*)obj)->length = length;
  94         return S_OK;
  95     }
  96
  97     V_VT(&var) = VT_I4;
  98     V_I4(&var) = length;
  99     return jsdisp_propput_name(obj, lengthW, &var, ei);
 100 }
 101
 102 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 103 {
 104     if(!idx) {
 105         *ptr = '0';
 106         return ptr;
 107     }
 108
 109     while(idx) {
 110         *ptr-- = '0' + (idx%10);
 111         idx /= 10;
 112     }
 113
 114     return ptr+1;
 115 }
 116
 117 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 118         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 119 {
 120     ArrayInstance *This = array_from_vdisp(jsthis);
 121
 122     TRACE("%p %d\n", This, This->length);
 123
 124     switch(flags) {
 125     case DISPATCH_PROPERTYGET:
 126         V_VT(retv) = VT_I4;
 127         V_I4(retv) = This->length;
 128         break;
 129     case DISPATCH_PROPERTYPUT: {
 130         VARIANT num;
 131         DOUBLE len = -1;
 132         DWORD i;
 133         HRESULT hres;
 134
 135         hres = to_number(ctx, get_arg(dp, 0), ei, &num);
 136         if(FAILED(hres))
 137             return hres;
 138
 139         if(V_VT(&num) == VT_I4)
 140             len = V_I4(&num);
 141         else
 142             len = floor(V_R8(&num));
 143
 144         if(len!=(DWORD)len)
 145             return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
 146
 147         for(i=len; i<This->length; i++) {
 148             hres = jsdisp_delete_idx(&This->dispex, i);
 149             if(FAILED(hres))
 150                 return hres;
 151         }
 152
 153         This->length = len;
 154         break;
 155     }
 156     default:
 157         FIXME("unimplemented flags %x\n", flags);
 158         return E_NOTIMPL;
 159     }
 160
 161     return S_OK;
 162 }
 163
 164 static HRESULT concat_array(jsdisp_t *array, ArrayInstance *obj, DWORD *len, jsexcept_t *ei)
 165 {
 166     VARIANT var;
 167     DWORD i;
 168     HRESULT hres;
 169
 170     for(i=0; i < obj->length; i++) {
 171         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei);
 172         if(hres == DISP_E_UNKNOWNNAME)
 173             continue;
 174         if(FAILED(hres))
 175             return hres;
 176
 177         hres = jsdisp_propput_idx(array, *len+i, &var, ei);
 178         VariantClear(&var);
 179         if(FAILED(hres))
 180             return hres;
 181     }
 182
 183     *len += obj->length;
 184     return S_OK;
 185 }
 186
 187 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei)
 188 {
 189     jsdisp_t *jsobj;
 190     VARIANT var;
 191     HRESULT hres;
 192
 193     jsobj = iface_to_jsdisp((IUnknown*)obj);
 194     if(jsobj) {
 195         if(is_class(jsobj, JSCLASS_ARRAY)) {
 196             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei);
 197             jsdisp_release(jsobj);
 198             return hres;
 199         }
 200         jsdisp_release(jsobj);
 201     }
 202
 203     V_VT(&var) = VT_DISPATCH;
 204     V_DISPATCH(&var) = obj;
 205     return jsdisp_propput_idx(array, (*len)++, &var, ei);
 206 }
 207
 208 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 209         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 210 {
 211     jsdisp_t *ret;
 212     DWORD len = 0;
 213     HRESULT hres;
 214
 215     TRACE("\n");
 216
 217     hres = create_array(ctx, 0, &ret);
 218     if(FAILED(hres))
 219         return hres;
 220
 221     hres = concat_obj(ret, jsthis->u.disp, &len, ei);
 222     if(SUCCEEDED(hres)) {
 223         VARIANT *arg;
 224         DWORD i;
 225
 226         for(i=0; i < arg_cnt(dp); i++) {
 227             arg = get_arg(dp, i);
 228             if(V_VT(arg) == VT_DISPATCH)
 229                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei);
 230             else
 231                 hres = jsdisp_propput_idx(ret, len++, arg, ei);
 232             if(FAILED(hres))
 233                 break;
 234         }
 235     }
 236
 237     if(FAILED(hres))
 238         return hres;
 239
 240     if(retv)
 241         var_set_jsdisp(retv, ret);
 242     else
 243         jsdisp_release(ret);
 244     return S_OK;
 245 }
 246
 247 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 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_get_idx(array, i, &var, ei);
 271         if(hres == DISP_E_UNKNOWNNAME) {
 272             hres = S_OK;
 273             continue;
 274         } else if(FAILED(hres))
 275             break;
 276
 277         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 278             hres = to_string(ctx, &var, ei, str_tab+i);
 279         VariantClear(&var);
 280         if(FAILED(hres))
 281             break;
 282     }
 283
 284     if(SUCCEEDED(hres)) {
 285         DWORD seplen = 0, len = 0;
 286         WCHAR *ptr;
 287
 288         seplen = strlenW(sep);
 289
 290         if(str_tab[0])
 291             len = SysStringLen(str_tab[0]);
 292         for(i=1; i < length; i++)
 293             len += seplen + SysStringLen(str_tab[i]);
 294
 295         ret = SysAllocStringLen(NULL, len);
 296         if(ret) {
 297             DWORD tmplen = 0;
 298
 299             if(str_tab[0]) {
 300                 tmplen = SysStringLen(str_tab[0]);
 301                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 302             }
 303
 304             ptr = ret + tmplen;
 305             for(i=1; i < length; i++) {
 306                 if(seplen) {
 307                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 308                     ptr += seplen;
 309                 }
 310
 311                 if(str_tab[i]) {
 312                     tmplen = SysStringLen(str_tab[i]);
 313                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 314                     ptr += tmplen;
 315                 }
 316             }
 317             *ptr=0;
 318         }else {
 319             hres = E_OUTOFMEMORY;
 320         }
 321     }
 322
 323     for(i=0; i < length; i++)
 324         SysFreeString(str_tab[i]);
 325     heap_free(str_tab);
 326     if(FAILED(hres))
 327         return hres;
 328
 329     TRACE("= %s\n", debugstr_w(ret));
 330
 331     if(retv) {
 332         if(!ret) {
 333             ret = SysAllocStringLen(NULL, 0);
 334             if(!ret)
 335                 return E_OUTOFMEMORY;
 336         }
 337
 338         V_VT(retv) = VT_BSTR;
 339         V_BSTR(retv) = ret;
 340     }else {
 341         SysFreeString(ret);
 342     }
 343
 344     return S_OK;
 345 }
 346
 347 /* ECMA-262 3rd Edition    15.4.4.5 */
 348 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 349         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 350 {
 351     jsdisp_t *jsthis;
 352     DWORD length;
 353     HRESULT hres;
 354
 355     TRACE("\n");
 356
 357     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 358     if(FAILED(hres))
 359         return hres;
 360
 361     if(arg_cnt(dp)) {
 362         BSTR sep;
 363
 364         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 365         if(FAILED(hres))
 366             return hres;
 367
 368         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 369
 370         SysFreeString(sep);
 371     }else {
 372         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 373     }
 374
 375     return hres;
 376 }
 377
 378 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 379         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 380 {
 381     jsdisp_t *jsthis;
 382     VARIANT val;
 383     DWORD length;
 384     HRESULT hres;
 385
 386     TRACE("\n");
 387
 388     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 389     if(FAILED(hres))
 390         return hres;
 391
 392     if(!length) {
 393         hres = set_length(jsthis, ei, 0);
 394         if(FAILED(hres))
 395             return hres;
 396
 397         if(retv)
 398             V_VT(retv) = VT_EMPTY;
 399         return S_OK;
 400     }
 401
 402     length--;
 403     hres = jsdisp_get_idx(jsthis, length, &val, ei);
 404     if(SUCCEEDED(hres)) {
 405         hres = jsdisp_delete_idx(jsthis, length);
 406     } else if(hres == DISP_E_UNKNOWNNAME) {
 407         V_VT(&val) = VT_EMPTY;
 408         hres = S_OK;
 409     } else
 410         return hres;
 411
 412     if(SUCCEEDED(hres))
 413         hres = set_length(jsthis, ei, length);
 414
 415     if(FAILED(hres)) {
 416         VariantClear(&val);
 417         return hres;
 418     }
 419
 420     if(retv)
 421         *retv = val;
 422     else
 423         VariantClear(&val);
 424
 425     return S_OK;
 426 }
 427
 428 /* ECMA-262 3rd Edition    15.4.4.7 */
 429 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 430         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 431 {
 432     jsdisp_t *jsthis;
 433     DWORD length = 0;
 434     int i, n;
 435     HRESULT hres;
 436
 437     TRACE("\n");
 438
 439     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 440     if(FAILED(hres))
 441         return hres;
 442
 443     n = arg_cnt(dp);
 444     for(i=0; i < n; i++) {
 445         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei);
 446         if(FAILED(hres))
 447             return hres;
 448     }
 449
 450     hres = set_length(jsthis, ei, length+n);
 451     if(FAILED(hres))
 452         return hres;
 453
 454     if(retv) {
 455         V_VT(retv) = VT_I4;
 456         V_I4(retv) = length+n;
 457     }
 458     return S_OK;
 459 }
 460
 461 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 462         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 463 {
 464     jsdisp_t *jsthis;
 465     DWORD length, k, l;
 466     VARIANT v1, v2;
 467     HRESULT hres1, hres2;
 468
 469     TRACE("\n");
 470
 471     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 472     if(FAILED(hres1))
 473         return hres1;
 474
 475     for(k=0; k<length/2; k++) {
 476         l = length-k-1;
 477
 478         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei);
 479         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 480             return hres1;
 481
 482         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei);
 483         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 484             VariantClear(&v1);
 485             return hres2;
 486         }
 487
 488         if(hres1 == DISP_E_UNKNOWNNAME)
 489             hres1 = jsdisp_delete_idx(jsthis, l);
 490         else
 491             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei);
 492
 493         if(FAILED(hres1)) {
 494             VariantClear(&v1);
 495             VariantClear(&v2);
 496             return hres1;
 497         }
 498
 499         if(hres2 == DISP_E_UNKNOWNNAME)
 500             hres2 = jsdisp_delete_idx(jsthis, k);
 501         else
 502             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei);
 503
 504         if(FAILED(hres2)) {
 505             VariantClear(&v2);
 506             return hres2;
 507         }
 508     }
 509
 510     if(retv) {
 511         jsdisp_addref(jsthis);
 512         var_set_jsdisp(retv, jsthis);
 513     }
 514
 515     return S_OK;
 516 }
 517
 518 /* ECMA-262 3rd Edition    15.4.4.9 */
 519 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 520         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 521 {
 522     jsdisp_t *jsthis;
 523     DWORD length = 0, i;
 524     VARIANT v, ret;
 525     HRESULT hres;
 526
 527     TRACE("\n");
 528
 529     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 530     if(FAILED(hres))
 531         return hres;
 532
 533     if(!length) {
 534         hres = set_length(jsthis, ei, 0);
 535         if(FAILED(hres))
 536             return hres;
 537     }
 538
 539     if(!length) {
 540         if(retv)
 541             V_VT(retv) = VT_EMPTY;
 542         return S_OK;
 543     }
 544
 545     hres = jsdisp_get_idx(jsthis, 0, &ret, ei);
 546     if(hres == DISP_E_UNKNOWNNAME) {
 547         V_VT(&ret) = VT_EMPTY;
 548         hres = S_OK;
 549     }
 550
 551     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 552         hres = jsdisp_get_idx(jsthis, i, &v, ei);
 553         if(hres == DISP_E_UNKNOWNNAME)
 554             hres = jsdisp_delete_idx(jsthis, i-1);
 555         else if(SUCCEEDED(hres))
 556             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei);
 557     }
 558
 559     if(SUCCEEDED(hres)) {
 560         hres = jsdisp_delete_idx(jsthis, length-1);
 561         if(SUCCEEDED(hres))
 562             hres = set_length(jsthis, ei, length-1);
 563     }
 564
 565     if(SUCCEEDED(hres) && retv)
 566         *retv = ret;
 567     else
 568         VariantClear(&ret);
 569     return hres;
 570 }
 571
 572 /* ECMA-262 3rd Edition    15.4.4.10 */
 573 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 574         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 575 {
 576     jsdisp_t *arr, *jsthis;
 577     VARIANT v;
 578     DOUBLE range;
 579     DWORD length, start, end, idx;
 580     HRESULT hres;
 581
 582     TRACE("\n");
 583
 584     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 585     if(FAILED(hres))
 586         return hres;
 587
 588     if(arg_cnt(dp)) {
 589         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 590         if(FAILED(hres))
 591             return hres;
 592
 593         if(V_VT(&v) == VT_I4)
 594             range = V_I4(&v);
 595         else
 596             range = floor(V_R8(&v));
 597
 598         if(-range>length || isnan(range)) start = 0;
 599         else if(range < 0) start = range+length;
 600         else if(range <= length) start = range;
 601         else start = length;
 602     }
 603     else start = 0;
 604
 605     if(arg_cnt(dp)>1) {
 606         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 607         if(FAILED(hres))
 608             return hres;
 609
 610         if(V_VT(&v) == VT_I4)
 611             range = V_I4(&v);
 612         else
 613             range = floor(V_R8(&v));
 614
 615         if(-range>length) end = 0;
 616         else if(range < 0) end = range+length;
 617         else if(range <= length) end = range;
 618         else end = length;
 619     }
 620     else end = length;
 621
 622     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 623     if(FAILED(hres))
 624         return hres;
 625
 626     for(idx=start; idx<end; idx++) {
 627         hres = jsdisp_get_idx(jsthis, idx, &v, ei);
 628         if(hres == DISP_E_UNKNOWNNAME)
 629             continue;
 630
 631         if(SUCCEEDED(hres)) {
 632             hres = jsdisp_propput_idx(arr, idx-start, &v, ei);
 633             VariantClear(&v);
 634         }
 635
 636         if(FAILED(hres)) {
 637             jsdisp_release(arr);
 638             return hres;
 639         }
 640     }
 641
 642     if(retv)
 643         var_set_jsdisp(retv, arr);
 644     else
 645         jsdisp_release(arr);
 646
 647     return S_OK;
 648 }
 649
 650 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei, INT *cmp)
 651 {
 652     HRESULT hres;
 653
 654     if(cmp_func) {
 655         VARIANTARG args[2];
 656         DISPPARAMS dp = {args, NULL, 2, 0};
 657         VARIANT tmp;
 658         VARIANT res;
 659
 660         args[0] = *v2;
 661         args[1] = *v1;
 662
 663         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei);
 664         if(FAILED(hres))
 665             return hres;
 666
 667         hres = to_number(ctx, &res, ei, &tmp);
 668         VariantClear(&res);
 669         if(FAILED(hres))
 670             return hres;
 671
 672         if(V_VT(&tmp) == VT_I4)
 673             *cmp = V_I4(&tmp);
 674         else
 675             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 676     }else if(V_VT(v1) == VT_EMPTY) {
 677         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 678     }else if(V_VT(v2) == VT_EMPTY) {
 679         *cmp = -1;
 680     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 681         DOUBLE d = num_val(v1)-num_val(v2);
 682         if(d > 0.0)
 683             *cmp = 1;
 684         else
 685             *cmp = d < -0.0 ? -1 : 0;
 686     }else {
 687         BSTR x, y;
 688
 689         hres = to_string(ctx, v1, ei, &x);
 690         if(FAILED(hres))
 691             return hres;
 692
 693         hres = to_string(ctx, v2, ei, &y);
 694         if(SUCCEEDED(hres)) {
 695             *cmp = strcmpW(x, y);
 696             SysFreeString(y);
 697         }
 698         SysFreeString(x);
 699         if(FAILED(hres))
 700             return hres;
 701     }
 702
 703     return S_OK;
 704 }
 705
 706 /* ECMA-262 3rd Edition    15.4.4.11 */
 707 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 708         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 709 {
 710     jsdisp_t *jsthis, *cmp_func = NULL;
 711     VARIANT *vtab, **sorttab = NULL;
 712     DWORD length;
 713     DWORD i;
 714     HRESULT hres = S_OK;
 715
 716     TRACE("\n");
 717
 718     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 719     if(FAILED(hres))
 720         return hres;
 721
 722     if(arg_cnt(dp) > 1) {
 723         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 724         return E_FAIL;
 725     }
 726
 727     if(arg_cnt(dp) == 1) {
 728         VARIANT *arg = get_arg(dp, 0);
 729
 730         if(V_VT(arg) != VT_DISPATCH) {
 731             WARN("arg is not dispatch\n");
 732             return E_FAIL;
 733         }
 734
 735
 736         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 737         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 738             WARN("cmp_func is not a function\n");
 739             if(cmp_func)
 740                 jsdisp_release(cmp_func);
 741             return E_FAIL;
 742         }
 743     }
 744
 745     if(!length) {
 746         if(cmp_func)
 747             jsdisp_release(cmp_func);
 748         if(retv) {
 749             jsdisp_addref(jsthis);
 750             var_set_jsdisp(retv, jsthis);
 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_get_idx(jsthis, i, vtab+i, ei);
 759             if(hres == DISP_E_UNKNOWNNAME) {
 760                 V_VT(vtab+i) = VT_EMPTY;
 761                 hres = S_OK;
 762             } else if(FAILED(hres)) {
 763                 WARN("Could not get elem %d: %08x\n", i, hres);
 764                 break;
 765             }
 766         }
 767     }else {
 768         hres = E_OUTOFMEMORY;
 769     }
 770
 771     if(SUCCEEDED(hres)) {
 772         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 773         if(!sorttab)
 774             hres = E_OUTOFMEMORY;
 775     }
 776
 777     /* merge-sort */
 778     if(SUCCEEDED(hres)) {
 779         VARIANT *tmpv, **tmpbuf;
 780         INT cmp;
 781
 782         tmpbuf = sorttab + length;
 783         for(i=0; i < length; i++)
 784             sorttab[i] = vtab+i;
 785
 786         for(i=0; i < length/2; i++) {
 787             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, &cmp);
 788             if(FAILED(hres))
 789                 break;
 790
 791             if(cmp < 0) {
 792                 tmpv = sorttab[2*i];
 793                 sorttab[2*i] = sorttab[2*i+1];
 794                 sorttab[2*i+1] = tmpv;
 795             }
 796         }
 797
 798         if(SUCCEEDED(hres)) {
 799             DWORD k, a, b, bend;
 800
 801             for(k=2; k < length; k *= 2) {
 802                 for(i=0; i+k < length; i += 2*k) {
 803                     a = b = 0;
 804                     if(i+2*k <= length)
 805                         bend = k;
 806                     else
 807                         bend = length - (i+k);
 808
 809                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 810
 811                     while(a < k && b < bend) {
 812                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, &cmp);
 813                         if(FAILED(hres))
 814                             break;
 815
 816                         if(cmp < 0) {
 817                             sorttab[i+a+b] = tmpbuf[a];
 818                             a++;
 819                         }else {
 820                             sorttab[i+a+b] = sorttab[i+k+b];
 821                             b++;
 822                         }
 823                     }
 824
 825                     if(FAILED(hres))
 826                         break;
 827
 828                     if(a < k)
 829                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 830                 }
 831
 832                 if(FAILED(hres))
 833                     break;
 834             }
 835         }
 836
 837         for(i=0; SUCCEEDED(hres) && i < length; i++)
 838             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei);
 839     }
 840
 841     if(vtab) {
 842         for(i=0; i < length; i++)
 843             VariantClear(vtab+i);
 844         heap_free(vtab);
 845     }
 846     heap_free(sorttab);
 847     if(cmp_func)
 848         jsdisp_release(cmp_func);
 849
 850     if(FAILED(hres))
 851         return hres;
 852
 853     if(retv) {
 854         jsdisp_addref(jsthis);
 855         var_set_jsdisp(retv, jsthis);
 856     }
 857
 858     return S_OK;
 859 }
 860
 861 /* ECMA-262 3rd Edition    15.4.4.12 */
 862 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 863         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 864 {
 865     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 866     jsdisp_t *ret_array = NULL, *jsthis;
 867     VARIANT v;
 868     HRESULT hres = S_OK;
 869
 870     TRACE("\n");
 871
 872     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 873     if(FAILED(hres))
 874         return hres;
 875
 876     argc = arg_cnt(dp);
 877     if(argc >= 1) {
 878         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 879         if(FAILED(hres))
 880             return hres;
 881
 882         if(V_VT(&v) == VT_I4) {
 883             if(V_I4(&v) >= 0)
 884                 start = min(V_I4(&v), length);
 885             else
 886                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 887         }else {
 888             start = V_R8(&v) < 0.0 ? 0 : length;
 889         }
 890     }
 891
 892     if(argc >= 2) {
 893         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 894         if(FAILED(hres))
 895             return hres;
 896
 897         if(V_VT(&v) == VT_I4) {
 898             if(V_I4(&v) > 0)
 899                 delete_cnt = min(V_I4(&v), length-start);
 900         }else if(V_R8(&v) > 0.0) {
 901             delete_cnt = length-start;
 902         }
 903
 904         add_args = argc-2;
 905     }
 906
 907     if(retv) {
 908         hres = create_array(ctx, 0, &ret_array);
 909         if(FAILED(hres))
 910             return hres;
 911
 912         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 913             hres = jsdisp_get_idx(jsthis, start+i, &v, ei);
 914             if(hres == DISP_E_UNKNOWNNAME)
 915                 hres = S_OK;
 916             else if(SUCCEEDED(hres))
 917                 hres = jsdisp_propput_idx(ret_array, i, &v, ei);
 918         }
 919
 920         if(SUCCEEDED(hres)) {
 921             V_VT(&v) = VT_I4;
 922             V_I4(&v) = delete_cnt;
 923
 924             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei);
 925         }
 926     }
 927
 928     if(add_args < delete_cnt) {
 929         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 930             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei);
 931             if(hres == DISP_E_UNKNOWNNAME)
 932                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 933             else if(SUCCEEDED(hres))
 934                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei);
 935         }
 936
 937         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 938             hres = jsdisp_delete_idx(jsthis, i-1);
 939     }else if(add_args > delete_cnt) {
 940         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 941             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei);
 942             if(hres == DISP_E_UNKNOWNNAME)
 943                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 944             else if(SUCCEEDED(hres))
 945                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei);
 946         }
 947     }
 948
 949     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 950         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei);
 951
 952     if(SUCCEEDED(hres)) {
 953         V_VT(&v) = VT_I4;
 954         V_I4(&v) = length-delete_cnt+add_args;
 955         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei);
 956     }
 957
 958     if(FAILED(hres)) {
 959         if(ret_array)
 960             jsdisp_release(ret_array);
 961         return hres;
 962     }
 963
 964     if(retv)
 965         var_set_jsdisp(retv, ret_array);
 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, JS_E_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     jsdisp_t *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);
1020                 if(FAILED(hres))
1021                     return hres;
1022
1023                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei);
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);
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, JS_E_FUNCTION_EXPECTED, 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(jsdisp_t *dispex)
1077 {
1078     heap_free(dispex);
1079 }
1080
1081 static void Array_on_put(jsdisp_t *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     jsdisp_t *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, JS_E_INVALID_LENGTH, NULL);
1143
1144             hres = create_array(ctx, V_I4(arg_var), &obj);
1145             if(FAILED(hres))
1146                 return hres;
1147
1148             var_set_jsdisp(retv, obj);
1149             return S_OK;
1150         }
1151
1152         hres = create_array(ctx, arg_cnt(dp), &obj);
1153         if(FAILED(hres))
1154             return hres;
1155
1156         for(i=0; i < arg_cnt(dp); i++) {
1157             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei);
1158             if(FAILED(hres))
1159                 break;
1160         }
1161         if(FAILED(hres)) {
1162             jsdisp_release(obj);
1163             return hres;
1164         }
1165
1166         var_set_jsdisp(retv, obj);
1167         break;
1168     }
1169     default:
1170         FIXME("unimplemented flags: %x\n", flags);
1171         return E_NOTIMPL;
1172     }
1173
1174     return S_OK;
1175 }
1176
1177 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1178 {
1179     ArrayInstance *array;
1180     HRESULT hres;
1181
1182     array = heap_alloc_zero(sizeof(ArrayInstance));
1183     if(!array)
1184         return E_OUTOFMEMORY;
1185
1186     if(object_prototype)
1187         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1188     else
1189         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1190
1191     if(FAILED(hres)) {
1192         heap_free(array);
1193         return hres;
1194     }
1195
1196     *ret = array;
1197     return S_OK;
1198 }
1199
1200 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1201 {
1202     ArrayInstance *array;
1203     HRESULT hres;
1204
1205     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1206
1207     hres = alloc_array(ctx, object_prototype, &array);
1208     if(FAILED(hres))
1209         return hres;
1210
1211     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1212
1213     jsdisp_release(&array->dispex);
1214     return hres;
1215 }
1216
1217 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1218 {
1219     ArrayInstance *array;
1220     HRESULT hres;
1221
1222     hres = alloc_array(ctx, NULL, &array);
1223     if(FAILED(hres))
1224         return hres;
1225
1226     array->length = length;
1227
1228     *ret = &array->dispex;
1229     return S_OK;
1230 }