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