dlls/jscript/array.c

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <math.h>
  20
  21 #include "jscript.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  26
  27 typedef struct {
  28     DispatchEx dispex;
  29
  30     DWORD length;
  31 } ArrayInstance;
  32
  33 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
  34 static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
  35 static const WCHAR joinW[] = {'j','o','i','n',0};
  36 static const WCHAR popW[] = {'p','o','p',0};
  37 static const WCHAR pushW[] = {'p','u','s','h',0};
  38 static const WCHAR reverseW[] = {'r','e','v','e','r','s','e',0};
  39 static const WCHAR shiftW[] = {'s','h','i','f','t',0};
  40 static const WCHAR sliceW[] = {'s','l','i','c','e',0};
  41 static const WCHAR sortW[] = {'s','o','r','t',0};
  42 static const WCHAR spliceW[] = {'s','p','l','i','c','e',0};
  43 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  44 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  45 static const WCHAR unshiftW[] = {'u','n','s','h','i','f','t',0};
  46
  47 static const WCHAR default_separatorW[] = {',',0};
  48
  49 static inline ArrayInstance *array_from_vdisp(vdisp_t *vdisp)
  50 {
  51     return (ArrayInstance*)vdisp->u.jsdisp;
  52 }
  53
  54 static inline ArrayInstance *array_this(vdisp_t *jsthis)
  55 {
  56     return is_vclass(jsthis, JSCLASS_ARRAY) ? array_from_vdisp(jsthis) : NULL;
  57 }
  58
  59 static HRESULT get_length(script_ctx_t *ctx, vdisp_t *vdisp, jsexcept_t *ei, DispatchEx **jsthis, DWORD *ret)
  60 {
  61     ArrayInstance *array;
  62     VARIANT var;
  63     HRESULT hres;
  64
  65     array = array_this(vdisp);
  66     if(array) {
  67         *jsthis = &array->dispex;
  68         *ret = array->length;
  69         return S_OK;
  70     }
  71
  72     if(!is_jsdisp(vdisp))
  73         return throw_type_error(ctx, ei, IDS_JSCRIPT_EXPECTED, NULL);
  74
  75     hres = jsdisp_propget_name(vdisp->u.jsdisp, lengthW, &var, ei, NULL/*FIXME*/);
  76     if(FAILED(hres))
  77         return hres;
  78
  79     hres = to_uint32(ctx, &var, ei, ret);
  80     VariantClear(&var);
  81     if(FAILED(hres))
  82         return hres;
  83
  84     *jsthis = vdisp->u.jsdisp;
  85     return S_OK;
  86 }
  87
  88 static HRESULT set_length(DispatchEx *obj, jsexcept_t *ei, DWORD length)
  89 {
  90     VARIANT var;
  91
  92     if(is_class(obj, JSCLASS_ARRAY)) {
  93         ((ArrayInstance*)obj)->length = length;
  94         return S_OK;
  95     }
  96
  97     V_VT(&var) = VT_I4;
  98     V_I4(&var) = length;
  99     return jsdisp_propput_name(obj, lengthW, &var, ei, NULL/*FIXME*/);
 100 }
 101
 102 static WCHAR *idx_to_str(DWORD idx, WCHAR *ptr)
 103 {
 104     if(!idx) {
 105         *ptr = '0';
 106         return ptr;
 107     }
 108
 109     while(idx) {
 110         *ptr-- = '0' + (idx%10);
 111         idx /= 10;
 112     }
 113
 114     return ptr+1;
 115 }
 116
 117 static HRESULT Array_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 118         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 119 {
 120     ArrayInstance *This = array_from_vdisp(jsthis);
 121
 122     TRACE("%p %d\n", This, This->length);
 123
 124     switch(flags) {
 125     case DISPATCH_PROPERTYGET:
 126         V_VT(retv) = VT_I4;
 127         V_I4(retv) = This->length;
 128         break;
 129     case DISPATCH_PROPERTYPUT: {
 130         VARIANT num;
 131         DOUBLE len = -1;
 132         DWORD i;
 133         HRESULT hres;
 134
 135         hres = to_number(ctx, get_arg(dp, 0), ei, &num);
 136         if(V_VT(&num) == VT_I4)
 137             len = V_I4(&num);
 138         else
 139             len = floor(V_R8(&num));
 140
 141         if(len!=(DWORD)len)
 142             return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
 143
 144         for(i=len; i<This->length; i++) {
 145             hres = jsdisp_delete_idx(&This->dispex, i);
 146             if(FAILED(hres))
 147                 return hres;
 148         }
 149
 150         This->length = len;
 151         break;
 152     }
 153     default:
 154         FIXME("unimplemented flags %x\n", flags);
 155         return E_NOTIMPL;
 156     }
 157
 158     return S_OK;
 159 }
 160
 161 static HRESULT concat_array(DispatchEx *array, ArrayInstance *obj, DWORD *len,
 162         jsexcept_t *ei, IServiceProvider *caller)
 163 {
 164     VARIANT var;
 165     DWORD i;
 166     HRESULT hres;
 167
 168     for(i=0; i < obj->length; i++) {
 169         hres = jsdisp_propget_idx(&obj->dispex, i, &var, ei, caller);
 170         if(hres == DISP_E_UNKNOWNNAME)
 171             continue;
 172         if(FAILED(hres))
 173             return hres;
 174
 175         hres = jsdisp_propput_idx(array, *len+i, &var, ei, caller);
 176         VariantClear(&var);
 177         if(FAILED(hres))
 178             return hres;
 179     }
 180
 181     *len += obj->length;
 182     return S_OK;
 183 }
 184
 185 static HRESULT concat_obj(DispatchEx *array, IDispatch *obj, DWORD *len, jsexcept_t *ei, IServiceProvider *caller)
 186 {
 187     DispatchEx *jsobj;
 188     VARIANT var;
 189     HRESULT hres;
 190
 191     jsobj = iface_to_jsdisp((IUnknown*)obj);
 192     if(jsobj) {
 193         if(is_class(jsobj, JSCLASS_ARRAY)) {
 194             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei, caller);
 195             jsdisp_release(jsobj);
 196             return hres;
 197         }
 198         jsdisp_release(jsobj);
 199     }
 200
 201     V_VT(&var) = VT_DISPATCH;
 202     V_DISPATCH(&var) = obj;
 203     return jsdisp_propput_idx(array, (*len)++, &var, ei, caller);
 204 }
 205
 206 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 207         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 208 {
 209     DispatchEx *ret;
 210     DWORD len = 0;
 211     HRESULT hres;
 212
 213     TRACE("\n");
 214
 215     hres = create_array(ctx, 0, &ret);
 216     if(FAILED(hres))
 217         return hres;
 218
 219     hres = concat_obj(ret, jsthis->u.disp, &len, ei, caller);
 220     if(SUCCEEDED(hres)) {
 221         VARIANT *arg;
 222         DWORD i;
 223
 224         for(i=0; i < arg_cnt(dp); i++) {
 225             arg = get_arg(dp, i);
 226             if(V_VT(arg) == VT_DISPATCH)
 227                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei, caller);
 228             else
 229                 hres = jsdisp_propput_idx(ret, len++, arg, ei, caller);
 230             if(FAILED(hres))
 231                 break;
 232         }
 233     }
 234
 235     if(FAILED(hres))
 236         return hres;
 237
 238     if(retv) {
 239         V_VT(retv) = VT_DISPATCH;
 240         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret);
 241     }else {
 242         jsdisp_release(ret);
 243     }
 244     return S_OK;
 245 }
 246
 247 static HRESULT array_join(script_ctx_t *ctx, DispatchEx *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 248         jsexcept_t *ei, IServiceProvider *caller)
 249 {
 250     BSTR *str_tab, ret = NULL;
 251     VARIANT var;
 252     DWORD i;
 253     HRESULT hres = E_FAIL;
 254
 255     if(!length) {
 256         if(retv) {
 257             V_VT(retv) = VT_BSTR;
 258             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 259             if(!V_BSTR(retv))
 260                 return E_OUTOFMEMORY;
 261         }
 262         return S_OK;
 263     }
 264
 265     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 266     if(!str_tab)
 267         return E_OUTOFMEMORY;
 268
 269     for(i=0; i < length; i++) {
 270         hres = jsdisp_propget_idx(array, i, &var, ei, caller);
 271         if(FAILED(hres))
 272             break;
 273
 274         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 275             hres = to_string(ctx, &var, ei, str_tab+i);
 276         VariantClear(&var);
 277         if(FAILED(hres))
 278             break;
 279     }
 280
 281     if(SUCCEEDED(hres)) {
 282         DWORD seplen = 0, len = 0;
 283         WCHAR *ptr;
 284
 285         seplen = strlenW(sep);
 286
 287         if(str_tab[0])
 288             len = SysStringLen(str_tab[0]);
 289         for(i=1; i < length; i++)
 290             len += seplen + SysStringLen(str_tab[i]);
 291
 292         ret = SysAllocStringLen(NULL, len);
 293         if(ret) {
 294             DWORD tmplen = 0;
 295
 296             if(str_tab[0]) {
 297                 tmplen = SysStringLen(str_tab[0]);
 298                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 299             }
 300
 301             ptr = ret + tmplen;
 302             for(i=1; i < length; i++) {
 303                 if(seplen) {
 304                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 305                     ptr += seplen;
 306                 }
 307
 308                 if(str_tab[i]) {
 309                     tmplen = SysStringLen(str_tab[i]);
 310                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 311                     ptr += tmplen;
 312                 }
 313             }
 314             *ptr=0;
 315         }else {
 316             hres = E_OUTOFMEMORY;
 317         }
 318     }
 319
 320     for(i=0; i < length; i++)
 321         SysFreeString(str_tab[i]);
 322     heap_free(str_tab);
 323     if(FAILED(hres))
 324         return hres;
 325
 326     TRACE("= %s\n", debugstr_w(ret));
 327
 328     if(retv) {
 329         if(!ret) {
 330             ret = SysAllocStringLen(NULL, 0);
 331             if(!ret)
 332                 return E_OUTOFMEMORY;
 333         }
 334
 335         V_VT(retv) = VT_BSTR;
 336         V_BSTR(retv) = ret;
 337     }else {
 338         SysFreeString(ret);
 339     }
 340
 341     return S_OK;
 342 }
 343
 344 /* ECMA-262 3rd Edition    15.4.4.5 */
 345 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 346         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 347 {
 348     DispatchEx *jsthis;
 349     DWORD length;
 350     HRESULT hres;
 351
 352     TRACE("\n");
 353
 354     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 355     if(FAILED(hres))
 356         return hres;
 357
 358     if(arg_cnt(dp)) {
 359         BSTR sep;
 360
 361         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 362         if(FAILED(hres))
 363             return hres;
 364
 365         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 366
 367         SysFreeString(sep);
 368     }else {
 369         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 370     }
 371
 372     return hres;
 373 }
 374
 375 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 376         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 377 {
 378     DispatchEx *jsthis;
 379     VARIANT val;
 380     DWORD length;
 381     HRESULT hres;
 382
 383     TRACE("\n");
 384
 385     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 386     if(FAILED(hres))
 387         return hres;
 388
 389     if(!length) {
 390         hres = set_length(jsthis, ei, 0);
 391         if(FAILED(hres))
 392             return hres;
 393
 394         if(retv)
 395             V_VT(retv) = VT_EMPTY;
 396         return S_OK;
 397     }
 398
 399     length--;
 400     hres = jsdisp_propget_idx(jsthis, length, &val, ei, caller);
 401     if(SUCCEEDED(hres)) {
 402         hres = jsdisp_delete_idx(jsthis, length);
 403     } else if(hres == DISP_E_UNKNOWNNAME) {
 404         V_VT(&val) = VT_EMPTY;
 405         hres = S_OK;
 406     } else
 407         return hres;
 408
 409     if(SUCCEEDED(hres))
 410         hres = set_length(jsthis, ei, length);
 411
 412     if(FAILED(hres)) {
 413         VariantClear(&val);
 414         return hres;
 415     }
 416
 417     if(retv)
 418         *retv = val;
 419     else
 420         VariantClear(&val);
 421
 422     return S_OK;
 423 }
 424
 425 /* ECMA-262 3rd Edition    15.4.4.7 */
 426 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 427         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 428 {
 429     DispatchEx *jsthis;
 430     DWORD length = 0;
 431     int i, n;
 432     HRESULT hres;
 433
 434     TRACE("\n");
 435
 436     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 437     if(FAILED(hres))
 438         return hres;
 439
 440     n = arg_cnt(dp);
 441     for(i=0; i < n; i++) {
 442         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei, sp);
 443         if(FAILED(hres))
 444             return hres;
 445     }
 446
 447     hres = set_length(jsthis, ei, length+n);
 448     if(FAILED(hres))
 449         return hres;
 450
 451     if(retv) {
 452         V_VT(retv) = VT_I4;
 453         V_I4(retv) = length+n;
 454     }
 455     return S_OK;
 456 }
 457
 458 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 459         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 460 {
 461     DispatchEx *jsthis;
 462     DWORD length, k, l;
 463     VARIANT v1, v2;
 464     HRESULT hres1, hres2;
 465
 466     TRACE("\n");
 467
 468     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 469     if(FAILED(hres1))
 470         return hres1;
 471
 472     for(k=0; k<length/2; k++) {
 473         l = length-k-1;
 474
 475         hres1 = jsdisp_propget_idx(jsthis, k, &v1, ei, sp);
 476         hres2 = jsdisp_propget_idx(jsthis, l, &v2, ei, sp);
 477
 478         if(hres1 == DISP_E_UNKNOWNNAME)
 479             jsdisp_delete_idx(jsthis, l);
 480         else
 481             jsdisp_propput_idx(jsthis, l, &v1, ei, sp);
 482
 483         if(hres2 == DISP_E_UNKNOWNNAME)
 484             jsdisp_delete_idx(jsthis, k);
 485         else
 486             jsdisp_propput_idx(jsthis, k, &v2, ei, sp);
 487     }
 488
 489     if(retv) {
 490         V_VT(retv) = VT_DISPATCH;
 491         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 492         IDispatch_AddRef(V_DISPATCH(retv));
 493     }
 494
 495     return S_OK;
 496 }
 497
 498 /* ECMA-262 3rd Edition    15.4.4.9 */
 499 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 500         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 501 {
 502     DispatchEx *jsthis;
 503     DWORD length = 0, i;
 504     VARIANT v, ret;
 505     HRESULT hres;
 506
 507     TRACE("\n");
 508
 509     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 510     if(FAILED(hres))
 511         return hres;
 512
 513     if(!length) {
 514         hres = set_length(jsthis, ei, 0);
 515         if(FAILED(hres))
 516             return hres;
 517     }
 518
 519     if(!length) {
 520         if(retv)
 521             V_VT(retv) = VT_EMPTY;
 522         return S_OK;
 523     }
 524
 525     hres = jsdisp_propget_idx(jsthis, 0, &ret, ei, caller);
 526     if(hres == DISP_E_UNKNOWNNAME) {
 527         V_VT(&ret) = VT_EMPTY;
 528         hres = S_OK;
 529     }
 530
 531     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 532         hres = jsdisp_propget_idx(jsthis, i, &v, ei, caller);
 533         if(hres == DISP_E_UNKNOWNNAME)
 534             hres = jsdisp_delete_idx(jsthis, i-1);
 535         else if(SUCCEEDED(hres))
 536             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei, caller);
 537     }
 538
 539     if(SUCCEEDED(hres)) {
 540         hres = jsdisp_delete_idx(jsthis, length-1);
 541         if(SUCCEEDED(hres))
 542             hres = set_length(jsthis, ei, length-1);
 543     }
 544
 545     if(SUCCEEDED(hres) && retv)
 546         *retv = ret;
 547     else
 548         VariantClear(&ret);
 549     return hres;
 550 }
 551
 552 /* ECMA-262 3rd Edition    15.4.4.10 */
 553 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 554         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 555 {
 556     DispatchEx *arr, *jsthis;
 557     VARIANT v;
 558     DOUBLE range;
 559     DWORD length, start, end, idx;
 560     HRESULT hres;
 561
 562     TRACE("\n");
 563
 564     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 565     if(FAILED(hres))
 566         return hres;
 567
 568     if(arg_cnt(dp)) {
 569         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 570         if(FAILED(hres))
 571             return hres;
 572
 573         if(V_VT(&v) == VT_I4)
 574             range = V_I4(&v);
 575         else
 576             range = floor(V_R8(&v));
 577
 578         if(-range>length || isnan(range)) start = 0;
 579         else if(range < 0) start = range+length;
 580         else if(range <= length) start = range;
 581         else start = length;
 582     }
 583     else start = 0;
 584
 585     if(arg_cnt(dp)>1) {
 586         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 587         if(FAILED(hres))
 588             return hres;
 589
 590         if(V_VT(&v) == VT_I4)
 591             range = V_I4(&v);
 592         else
 593             range = floor(V_R8(&v));
 594
 595         if(-range>length) end = 0;
 596         else if(range < 0) end = range+length;
 597         else if(range <= length) end = range;
 598         else end = length;
 599     }
 600     else end = length;
 601
 602     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 603     if(FAILED(hres))
 604         return hres;
 605
 606     for(idx=start; idx<end; idx++) {
 607         hres = jsdisp_propget_idx(jsthis, idx, &v, ei, sp);
 608         if(hres == DISP_E_UNKNOWNNAME)
 609             continue;
 610
 611         if(SUCCEEDED(hres)) {
 612             hres = jsdisp_propput_idx(arr, idx-start, &v, ei, sp);
 613             VariantClear(&v);
 614         }
 615
 616         if(FAILED(hres)) {
 617             jsdisp_release(arr);
 618             return hres;
 619         }
 620     }
 621
 622     if(retv) {
 623         V_VT(retv) = VT_DISPATCH;
 624         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(arr);
 625     }
 626     else
 627         jsdisp_release(arr);
 628
 629     return S_OK;
 630 }
 631
 632 static HRESULT sort_cmp(script_ctx_t *ctx, DispatchEx *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei,
 633         IServiceProvider *caller, INT *cmp)
 634 {
 635     HRESULT hres;
 636
 637     if(cmp_func) {
 638         VARIANTARG args[2];
 639         DISPPARAMS dp = {args, NULL, 2, 0};
 640         VARIANT tmp;
 641         VARIANT res;
 642
 643         args[0] = *v2;
 644         args[1] = *v1;
 645
 646         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei, caller);
 647         if(FAILED(hres))
 648             return hres;
 649
 650         hres = to_number(ctx, &res, ei, &tmp);
 651         VariantClear(&res);
 652         if(FAILED(hres))
 653             return hres;
 654
 655         if(V_VT(&tmp) == VT_I4)
 656             *cmp = V_I4(&tmp);
 657         else
 658             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 659     }else if(is_num_vt(V_VT(v1))) {
 660         if(is_num_vt(V_VT(v2))) {
 661             DOUBLE d = num_val(v1)-num_val(v2);
 662             if(d > 0.0)
 663                 *cmp = 1;
 664             else if(d < -0.0)
 665                 *cmp = -1;
 666             else
 667                 *cmp = 0;
 668         }else {
 669             *cmp = -1;
 670         }
 671     }else if(is_num_vt(V_VT(v2))) {
 672         *cmp = 1;
 673     }else if(V_VT(v1) == VT_BSTR) {
 674         if(V_VT(v2) == VT_BSTR)
 675             *cmp = strcmpW(V_BSTR(v1), V_BSTR(v2));
 676         else
 677             *cmp = -1;
 678     }else if(V_VT(v2) == VT_BSTR) {
 679         *cmp = 1;
 680     }else {
 681         *cmp = 0;
 682     }
 683
 684     return S_OK;
 685 }
 686
 687 /* ECMA-262 3rd Edition    15.4.4.11 */
 688 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 689         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 690 {
 691     DispatchEx *jsthis, *cmp_func = NULL;
 692     VARIANT *vtab, **sorttab = NULL;
 693     DWORD length;
 694     DWORD i;
 695     HRESULT hres = S_OK;
 696
 697     TRACE("\n");
 698
 699     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 700     if(FAILED(hres))
 701         return hres;
 702
 703     if(arg_cnt(dp) > 1) {
 704         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 705         return E_FAIL;
 706     }
 707
 708     if(arg_cnt(dp) == 1) {
 709         VARIANT *arg = get_arg(dp, 0);
 710
 711         if(V_VT(arg) != VT_DISPATCH) {
 712             WARN("arg is not dispatch\n");
 713             return E_FAIL;
 714         }
 715
 716
 717         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 718         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 719             WARN("cmp_func is not a function\n");
 720             if(cmp_func)
 721                 jsdisp_release(cmp_func);
 722             return E_FAIL;
 723         }
 724     }
 725
 726     if(!length) {
 727         if(cmp_func)
 728             jsdisp_release(cmp_func);
 729         if(retv) {
 730             V_VT(retv) = VT_DISPATCH;
 731             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 732             IDispatch_AddRef(V_DISPATCH(retv));
 733         }
 734         return S_OK;
 735     }
 736
 737     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 738     if(vtab) {
 739         for(i=0; i<length; i++) {
 740             hres = jsdisp_propget_idx(jsthis, i, vtab+i, ei, caller);
 741             if(FAILED(hres) && hres != DISP_E_UNKNOWNNAME) {
 742                 WARN("Could not get elem %d: %08x\n", i, hres);
 743                 break;
 744             }
 745         }
 746     }else {
 747         hres = E_OUTOFMEMORY;
 748     }
 749
 750     if(SUCCEEDED(hres)) {
 751         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 752         if(!sorttab)
 753             hres = E_OUTOFMEMORY;
 754     }
 755
 756     /* merge-sort */
 757     if(SUCCEEDED(hres)) {
 758         VARIANT *tmpv, **tmpbuf;
 759         INT cmp;
 760
 761         tmpbuf = sorttab + length;
 762         for(i=0; i < length; i++)
 763             sorttab[i] = vtab+i;
 764
 765         for(i=0; i < length/2; i++) {
 766             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, caller, &cmp);
 767             if(FAILED(hres))
 768                 break;
 769
 770             if(cmp < 0) {
 771                 tmpv = sorttab[2*i];
 772                 sorttab[2*i] = sorttab[2*i+1];
 773                 sorttab[2*i+1] = tmpv;
 774             }
 775         }
 776
 777         if(SUCCEEDED(hres)) {
 778             DWORD k, a, b, bend;
 779
 780             for(k=2; k < length; k *= 2) {
 781                 for(i=0; i+k < length; i += 2*k) {
 782                     a = b = 0;
 783                     if(i+2*k <= length)
 784                         bend = k;
 785                     else
 786                         bend = length - (i+k);
 787
 788                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 789
 790                     while(a < k && b < bend) {
 791                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, caller, &cmp);
 792                         if(FAILED(hres))
 793                             break;
 794
 795                         if(cmp < 0) {
 796                             sorttab[i+a+b] = tmpbuf[a];
 797                             a++;
 798                         }else {
 799                             sorttab[i+a+b] = sorttab[i+k+b];
 800                             b++;
 801                         }
 802                     }
 803
 804                     if(FAILED(hres))
 805                         break;
 806
 807                     if(a < k)
 808                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 809                 }
 810
 811                 if(FAILED(hres))
 812                     break;
 813             }
 814         }
 815
 816         for(i=0; SUCCEEDED(hres) && i < length; i++)
 817             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei, caller);
 818     }
 819
 820     if(vtab) {
 821         for(i=0; i < length; i++)
 822             VariantClear(vtab+i);
 823         heap_free(vtab);
 824     }
 825     heap_free(sorttab);
 826     if(cmp_func)
 827         jsdisp_release(cmp_func);
 828
 829     if(FAILED(hres))
 830         return hres;
 831
 832     if(retv) {
 833         V_VT(retv) = VT_DISPATCH;
 834         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(jsthis);
 835         IDispatch_AddRef(V_DISPATCH(retv));
 836     }
 837
 838     return S_OK;
 839 }
 840
 841 /* ECMA-262 3rd Edition    15.4.4.12 */
 842 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 843         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 844 {
 845     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 846     DispatchEx *ret_array = NULL, *jsthis;
 847     VARIANT v;
 848     HRESULT hres = S_OK;
 849
 850     TRACE("\n");
 851
 852     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 853     if(FAILED(hres))
 854         return hres;
 855
 856     argc = arg_cnt(dp);
 857     if(argc >= 1) {
 858         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 859         if(FAILED(hres))
 860             return hres;
 861
 862         if(V_VT(&v) == VT_I4) {
 863             if(V_I4(&v) >= 0)
 864                 start = min(V_I4(&v), length);
 865             else
 866                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 867         }else {
 868             start = V_R8(&v) < 0.0 ? 0 : length;
 869         }
 870     }
 871
 872     if(argc >= 2) {
 873         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 874         if(FAILED(hres))
 875             return hres;
 876
 877         if(V_VT(&v) == VT_I4) {
 878             if(V_I4(&v) > 0)
 879                 delete_cnt = min(V_I4(&v), length-start);
 880         }else if(V_R8(&v) > 0.0) {
 881             delete_cnt = length-start;
 882         }
 883
 884         add_args = argc-2;
 885     }
 886
 887     if(retv) {
 888         hres = create_array(ctx, 0, &ret_array);
 889         if(FAILED(hres))
 890             return hres;
 891
 892         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 893             hres = jsdisp_propget_idx(jsthis, start+i, &v, ei, caller);
 894             if(hres == DISP_E_UNKNOWNNAME)
 895                 hres = S_OK;
 896             else if(SUCCEEDED(hres))
 897                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 898         }
 899
 900         if(SUCCEEDED(hres)) {
 901             V_VT(&v) = VT_I4;
 902             V_I4(&v) = delete_cnt;
 903
 904             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei, caller);
 905         }
 906     }
 907
 908     if(add_args < delete_cnt) {
 909         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 910             hres = jsdisp_propget_idx(jsthis, i+delete_cnt, &v, ei, caller);
 911             if(hres == DISP_E_UNKNOWNNAME)
 912                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 913             else if(SUCCEEDED(hres))
 914                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 915         }
 916
 917         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 918             hres = jsdisp_delete_idx(jsthis, i-1);
 919     }else if(add_args > delete_cnt) {
 920         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 921             hres = jsdisp_propget_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 922             if(hres == DISP_E_UNKNOWNNAME)
 923                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 924             else if(SUCCEEDED(hres))
 925                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 926         }
 927     }
 928
 929     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 930         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 931
 932     if(SUCCEEDED(hres)) {
 933         V_VT(&v) = VT_I4;
 934         V_I4(&v) = length-delete_cnt+add_args;
 935         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei, caller);
 936     }
 937
 938     if(FAILED(hres)) {
 939         if(ret_array)
 940             jsdisp_release(ret_array);
 941         return hres;
 942     }
 943
 944     if(retv) {
 945         V_VT(retv) = VT_DISPATCH;
 946         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret_array);
 947     }
 948     return S_OK;
 949 }
 950
 951 /* ECMA-262 3rd Edition    15.4.4.2 */
 952 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 953         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 954 {
 955     ArrayInstance *array;
 956
 957     TRACE("\n");
 958
 959     array = array_this(jsthis);
 960     if(!array)
 961         return throw_type_error(ctx, ei, IDS_ARRAY_EXPECTED, NULL);
 962
 963     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 964 }
 965
 966 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 967         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 968 {
 969     FIXME("\n");
 970     return E_NOTIMPL;
 971 }
 972
 973 /* ECMA-262 3rd Edition    15.4.4.13 */
 974 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 975         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 976 {
 977     DispatchEx *jsthis;
 978     WCHAR buf[14], *buf_end, *str;
 979     DWORD argc, i, length;
 980     VARIANT var;
 981     DISPID id;
 982     HRESULT hres;
 983
 984     TRACE("\n");
 985
 986     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 987     if(FAILED(hres))
 988         return hres;
 989
 990     argc = arg_cnt(dp);
 991     if(argc) {
 992         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
 993         *buf_end-- = 0;
 994         i = length;
 995
 996         while(i--) {
 997             str = idx_to_str(i, buf_end);
 998
 999             hres = jsdisp_get_id(jsthis, str, 0, &id);
1000             if(SUCCEEDED(hres)) {
1001                 hres = jsdisp_propget(jsthis, id, &var, ei, caller);
1002                 if(FAILED(hres))
1003                     return hres;
1004
1005                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
1006                 VariantClear(&var);
1007             }else if(hres == DISP_E_UNKNOWNNAME) {
1008                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1009             }
1010         }
1011
1012         if(FAILED(hres))
1013             return hres;
1014     }
1015
1016     for(i=0; i<argc; i++) {
1017         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1018         if(FAILED(hres))
1019             return hres;
1020     }
1021
1022     if(argc) {
1023         length += argc;
1024         hres = set_length(jsthis, ei, length);
1025         if(FAILED(hres))
1026             return hres;
1027     }
1028
1029     if(retv) {
1030         if(ctx->version < 2) {
1031             V_VT(retv) = VT_EMPTY;
1032         }else {
1033             V_VT(retv) = VT_I4;
1034             V_I4(retv) = length;
1035         }
1036     }
1037     return S_OK;
1038 }
1039
1040 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1041         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1042 {
1043     TRACE("\n");
1044
1045     switch(flags) {
1046     case INVOKE_FUNC:
1047         return throw_type_error(ctx, ei, IDS_NOT_FUNC, NULL);
1048     case INVOKE_PROPERTYGET:
1049         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1050     default:
1051         FIXME("unimplemented flags %x\n", flags);
1052         return E_NOTIMPL;
1053     }
1054
1055     return S_OK;
1056 }
1057
1058 static void Array_destructor(DispatchEx *dispex)
1059 {
1060     heap_free(dispex);
1061 }
1062
1063 static void Array_on_put(DispatchEx *dispex, const WCHAR *name)
1064 {
1065     ArrayInstance *array = (ArrayInstance*)dispex;
1066     const WCHAR *ptr = name;
1067     DWORD id = 0;
1068
1069     if(!isdigitW(*ptr))
1070         return;
1071
1072     while(*ptr && isdigitW(*ptr)) {
1073         id = id*10 + (*ptr-'0');
1074         ptr++;
1075     }
1076
1077     if(*ptr)
1078         return;
1079
1080     if(id >= array->length)
1081         array->length = id+1;
1082 }
1083
1084 static const builtin_prop_t Array_props[] = {
1085     {concatW,                Array_concat,               PROPF_METHOD|1},
1086     {joinW,                  Array_join,                 PROPF_METHOD|1},
1087     {lengthW,                Array_length,               0},
1088     {popW,                   Array_pop,                  PROPF_METHOD},
1089     {pushW,                  Array_push,                 PROPF_METHOD|1},
1090     {reverseW,               Array_reverse,              PROPF_METHOD},
1091     {shiftW,                 Array_shift,                PROPF_METHOD},
1092     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1093     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1094     {spliceW,                Array_splice,               PROPF_METHOD|2},
1095     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1096     {toStringW,              Array_toString,             PROPF_METHOD},
1097     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1098 };
1099
1100 static const builtin_info_t Array_info = {
1101     JSCLASS_ARRAY,
1102     {NULL, Array_value, 0},
1103     sizeof(Array_props)/sizeof(*Array_props),
1104     Array_props,
1105     Array_destructor,
1106     Array_on_put
1107 };
1108
1109 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1110         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1111 {
1112     DispatchEx *obj;
1113     VARIANT *arg_var;
1114     DWORD i;
1115     HRESULT hres;
1116
1117     TRACE("\n");
1118
1119     switch(flags) {
1120     case DISPATCH_METHOD:
1121     case DISPATCH_CONSTRUCT: {
1122         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1123             if(V_I4(arg_var) < 0)
1124                 return throw_range_error(ctx, ei, IDS_INVALID_LENGTH, NULL);
1125
1126             hres = create_array(ctx, V_I4(arg_var), &obj);
1127             if(FAILED(hres))
1128                 return hres;
1129
1130             V_VT(retv) = VT_DISPATCH;
1131             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1132             return S_OK;
1133         }
1134
1135         hres = create_array(ctx, arg_cnt(dp), &obj);
1136         if(FAILED(hres))
1137             return hres;
1138
1139         for(i=0; i < arg_cnt(dp); i++) {
1140             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei, caller);
1141             if(FAILED(hres))
1142                 break;
1143         }
1144         if(FAILED(hres)) {
1145             jsdisp_release(obj);
1146             return hres;
1147         }
1148
1149         V_VT(retv) = VT_DISPATCH;
1150         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
1151         break;
1152     }
1153     default:
1154         FIXME("unimplemented flags: %x\n", flags);
1155         return E_NOTIMPL;
1156     }
1157
1158     return S_OK;
1159 }
1160
1161 static HRESULT alloc_array(script_ctx_t *ctx, DispatchEx *object_prototype, ArrayInstance **ret)
1162 {
1163     ArrayInstance *array;
1164     HRESULT hres;
1165
1166     array = heap_alloc_zero(sizeof(ArrayInstance));
1167     if(!array)
1168         return E_OUTOFMEMORY;
1169
1170     if(object_prototype)
1171         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1172     else
1173         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1174
1175     if(FAILED(hres)) {
1176         heap_free(array);
1177         return hres;
1178     }
1179
1180     *ret = array;
1181     return S_OK;
1182 }
1183
1184 HRESULT create_array_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
1185 {
1186     ArrayInstance *array;
1187     HRESULT hres;
1188
1189     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1190
1191     hres = alloc_array(ctx, object_prototype, &array);
1192     if(FAILED(hres))
1193         return hres;
1194
1195     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1196
1197     jsdisp_release(&array->dispex);
1198     return hres;
1199 }
1200
1201 HRESULT create_array(script_ctx_t *ctx, DWORD length, DispatchEx **ret)
1202 {
1203     ArrayInstance *array;
1204     HRESULT hres;
1205
1206     hres = alloc_array(ctx, NULL, &array);
1207     if(FAILED(hres))
1208         return hres;
1209
1210     array->length = length;
1211
1212     *ret = &array->dispex;
1213     return S_OK;
1214 }