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, 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(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,
 165         jsexcept_t *ei, IServiceProvider *caller)
 166 {
 167     VARIANT var;
 168     DWORD i;
 169     HRESULT hres;
 170
 171     for(i=0; i < obj->length; i++) {
 172         hres = jsdisp_get_idx(&obj->dispex, i, &var, ei, caller);
 173         if(hres == DISP_E_UNKNOWNNAME)
 174             continue;
 175         if(FAILED(hres))
 176             return hres;
 177
 178         hres = jsdisp_propput_idx(array, *len+i, &var, ei, caller);
 179         VariantClear(&var);
 180         if(FAILED(hres))
 181             return hres;
 182     }
 183
 184     *len += obj->length;
 185     return S_OK;
 186 }
 187
 188 static HRESULT concat_obj(jsdisp_t *array, IDispatch *obj, DWORD *len, jsexcept_t *ei, IServiceProvider *caller)
 189 {
 190     jsdisp_t *jsobj;
 191     VARIANT var;
 192     HRESULT hres;
 193
 194     jsobj = iface_to_jsdisp((IUnknown*)obj);
 195     if(jsobj) {
 196         if(is_class(jsobj, JSCLASS_ARRAY)) {
 197             hres = concat_array(array, (ArrayInstance*)jsobj, len, ei, caller);
 198             jsdisp_release(jsobj);
 199             return hres;
 200         }
 201         jsdisp_release(jsobj);
 202     }
 203
 204     V_VT(&var) = VT_DISPATCH;
 205     V_DISPATCH(&var) = obj;
 206     return jsdisp_propput_idx(array, (*len)++, &var, ei, caller);
 207 }
 208
 209 static HRESULT Array_concat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 210         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 211 {
 212     jsdisp_t *ret;
 213     DWORD len = 0;
 214     HRESULT hres;
 215
 216     TRACE("\n");
 217
 218     hres = create_array(ctx, 0, &ret);
 219     if(FAILED(hres))
 220         return hres;
 221
 222     hres = concat_obj(ret, jsthis->u.disp, &len, ei, caller);
 223     if(SUCCEEDED(hres)) {
 224         VARIANT *arg;
 225         DWORD i;
 226
 227         for(i=0; i < arg_cnt(dp); i++) {
 228             arg = get_arg(dp, i);
 229             if(V_VT(arg) == VT_DISPATCH)
 230                 hres = concat_obj(ret, V_DISPATCH(arg), &len, ei, caller);
 231             else
 232                 hres = jsdisp_propput_idx(ret, len++, arg, ei, caller);
 233             if(FAILED(hres))
 234                 break;
 235         }
 236     }
 237
 238     if(FAILED(hres))
 239         return hres;
 240
 241     if(retv)
 242         var_set_jsdisp(retv, ret);
 243     else
 244         jsdisp_release(ret);
 245     return S_OK;
 246 }
 247
 248 static HRESULT array_join(script_ctx_t *ctx, jsdisp_t *array, DWORD length, const WCHAR *sep, VARIANT *retv,
 249         jsexcept_t *ei, IServiceProvider *caller)
 250 {
 251     BSTR *str_tab, ret = NULL;
 252     VARIANT var;
 253     DWORD i;
 254     HRESULT hres = E_FAIL;
 255
 256     if(!length) {
 257         if(retv) {
 258             V_VT(retv) = VT_BSTR;
 259             V_BSTR(retv) = SysAllocStringLen(NULL, 0);
 260             if(!V_BSTR(retv))
 261                 return E_OUTOFMEMORY;
 262         }
 263         return S_OK;
 264     }
 265
 266     str_tab = heap_alloc_zero(length * sizeof(BSTR));
 267     if(!str_tab)
 268         return E_OUTOFMEMORY;
 269
 270     for(i=0; i < length; i++) {
 271         hres = jsdisp_get_idx(array, i, &var, ei, caller);
 272         if(hres == DISP_E_UNKNOWNNAME) {
 273             hres = S_OK;
 274             continue;
 275         } else if(FAILED(hres))
 276             break;
 277
 278         if(V_VT(&var) != VT_EMPTY && V_VT(&var) != VT_NULL)
 279             hres = to_string(ctx, &var, ei, str_tab+i);
 280         VariantClear(&var);
 281         if(FAILED(hres))
 282             break;
 283     }
 284
 285     if(SUCCEEDED(hres)) {
 286         DWORD seplen = 0, len = 0;
 287         WCHAR *ptr;
 288
 289         seplen = strlenW(sep);
 290
 291         if(str_tab[0])
 292             len = SysStringLen(str_tab[0]);
 293         for(i=1; i < length; i++)
 294             len += seplen + SysStringLen(str_tab[i]);
 295
 296         ret = SysAllocStringLen(NULL, len);
 297         if(ret) {
 298             DWORD tmplen = 0;
 299
 300             if(str_tab[0]) {
 301                 tmplen = SysStringLen(str_tab[0]);
 302                 memcpy(ret, str_tab[0], tmplen*sizeof(WCHAR));
 303             }
 304
 305             ptr = ret + tmplen;
 306             for(i=1; i < length; i++) {
 307                 if(seplen) {
 308                     memcpy(ptr, sep, seplen*sizeof(WCHAR));
 309                     ptr += seplen;
 310                 }
 311
 312                 if(str_tab[i]) {
 313                     tmplen = SysStringLen(str_tab[i]);
 314                     memcpy(ptr, str_tab[i], tmplen*sizeof(WCHAR));
 315                     ptr += tmplen;
 316                 }
 317             }
 318             *ptr=0;
 319         }else {
 320             hres = E_OUTOFMEMORY;
 321         }
 322     }
 323
 324     for(i=0; i < length; i++)
 325         SysFreeString(str_tab[i]);
 326     heap_free(str_tab);
 327     if(FAILED(hres))
 328         return hres;
 329
 330     TRACE("= %s\n", debugstr_w(ret));
 331
 332     if(retv) {
 333         if(!ret) {
 334             ret = SysAllocStringLen(NULL, 0);
 335             if(!ret)
 336                 return E_OUTOFMEMORY;
 337         }
 338
 339         V_VT(retv) = VT_BSTR;
 340         V_BSTR(retv) = ret;
 341     }else {
 342         SysFreeString(ret);
 343     }
 344
 345     return S_OK;
 346 }
 347
 348 /* ECMA-262 3rd Edition    15.4.4.5 */
 349 static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 350         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 351 {
 352     jsdisp_t *jsthis;
 353     DWORD length;
 354     HRESULT hres;
 355
 356     TRACE("\n");
 357
 358     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 359     if(FAILED(hres))
 360         return hres;
 361
 362     if(arg_cnt(dp)) {
 363         BSTR sep;
 364
 365         hres = to_string(ctx, get_arg(dp,0), ei, &sep);
 366         if(FAILED(hres))
 367             return hres;
 368
 369         hres = array_join(ctx, jsthis, length, sep, retv, ei, caller);
 370
 371         SysFreeString(sep);
 372     }else {
 373         hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei, caller);
 374     }
 375
 376     return hres;
 377 }
 378
 379 static HRESULT Array_pop(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 380         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 381 {
 382     jsdisp_t *jsthis;
 383     VARIANT val;
 384     DWORD length;
 385     HRESULT hres;
 386
 387     TRACE("\n");
 388
 389     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 390     if(FAILED(hres))
 391         return hres;
 392
 393     if(!length) {
 394         hres = set_length(jsthis, ei, 0);
 395         if(FAILED(hres))
 396             return hres;
 397
 398         if(retv)
 399             V_VT(retv) = VT_EMPTY;
 400         return S_OK;
 401     }
 402
 403     length--;
 404     hres = jsdisp_get_idx(jsthis, length, &val, ei, caller);
 405     if(SUCCEEDED(hres)) {
 406         hres = jsdisp_delete_idx(jsthis, length);
 407     } else if(hres == DISP_E_UNKNOWNNAME) {
 408         V_VT(&val) = VT_EMPTY;
 409         hres = S_OK;
 410     } else
 411         return hres;
 412
 413     if(SUCCEEDED(hres))
 414         hres = set_length(jsthis, ei, length);
 415
 416     if(FAILED(hres)) {
 417         VariantClear(&val);
 418         return hres;
 419     }
 420
 421     if(retv)
 422         *retv = val;
 423     else
 424         VariantClear(&val);
 425
 426     return S_OK;
 427 }
 428
 429 /* ECMA-262 3rd Edition    15.4.4.7 */
 430 static HRESULT Array_push(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 431         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 432 {
 433     jsdisp_t *jsthis;
 434     DWORD length = 0;
 435     int i, n;
 436     HRESULT hres;
 437
 438     TRACE("\n");
 439
 440     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 441     if(FAILED(hres))
 442         return hres;
 443
 444     n = arg_cnt(dp);
 445     for(i=0; i < n; i++) {
 446         hres = jsdisp_propput_idx(jsthis, length+i, get_arg(dp, i), ei, sp);
 447         if(FAILED(hres))
 448             return hres;
 449     }
 450
 451     hres = set_length(jsthis, ei, length+n);
 452     if(FAILED(hres))
 453         return hres;
 454
 455     if(retv) {
 456         V_VT(retv) = VT_I4;
 457         V_I4(retv) = length+n;
 458     }
 459     return S_OK;
 460 }
 461
 462 static HRESULT Array_reverse(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 463         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 464 {
 465     jsdisp_t *jsthis;
 466     DWORD length, k, l;
 467     VARIANT v1, v2;
 468     HRESULT hres1, hres2;
 469
 470     TRACE("\n");
 471
 472     hres1 = get_length(ctx, vthis, ei, &jsthis, &length);
 473     if(FAILED(hres1))
 474         return hres1;
 475
 476     for(k=0; k<length/2; k++) {
 477         l = length-k-1;
 478
 479         hres1 = jsdisp_get_idx(jsthis, k, &v1, ei, sp);
 480         if(FAILED(hres1) && hres1!=DISP_E_UNKNOWNNAME)
 481             return hres1;
 482
 483         hres2 = jsdisp_get_idx(jsthis, l, &v2, ei, sp);
 484         if(FAILED(hres2) && hres2!=DISP_E_UNKNOWNNAME) {
 485             VariantClear(&v1);
 486             return hres2;
 487         }
 488
 489         if(hres1 == DISP_E_UNKNOWNNAME)
 490             hres1 = jsdisp_delete_idx(jsthis, l);
 491         else
 492             hres1 = jsdisp_propput_idx(jsthis, l, &v1, ei, sp);
 493
 494         if(FAILED(hres1)) {
 495             VariantClear(&v1);
 496             VariantClear(&v2);
 497             return hres1;
 498         }
 499
 500         if(hres2 == DISP_E_UNKNOWNNAME)
 501             hres2 = jsdisp_delete_idx(jsthis, k);
 502         else
 503             hres2 = jsdisp_propput_idx(jsthis, k, &v2, ei, sp);
 504
 505         if(FAILED(hres2)) {
 506             VariantClear(&v2);
 507             return hres2;
 508         }
 509     }
 510
 511     if(retv) {
 512         jsdisp_addref(jsthis);
 513         var_set_jsdisp(retv, jsthis);
 514     }
 515
 516     return S_OK;
 517 }
 518
 519 /* ECMA-262 3rd Edition    15.4.4.9 */
 520 static HRESULT Array_shift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 521         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 522 {
 523     jsdisp_t *jsthis;
 524     DWORD length = 0, i;
 525     VARIANT v, ret;
 526     HRESULT hres;
 527
 528     TRACE("\n");
 529
 530     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 531     if(FAILED(hres))
 532         return hres;
 533
 534     if(!length) {
 535         hres = set_length(jsthis, ei, 0);
 536         if(FAILED(hres))
 537             return hres;
 538     }
 539
 540     if(!length) {
 541         if(retv)
 542             V_VT(retv) = VT_EMPTY;
 543         return S_OK;
 544     }
 545
 546     hres = jsdisp_get_idx(jsthis, 0, &ret, ei, caller);
 547     if(hres == DISP_E_UNKNOWNNAME) {
 548         V_VT(&ret) = VT_EMPTY;
 549         hres = S_OK;
 550     }
 551
 552     for(i=1; SUCCEEDED(hres) && i<length; i++) {
 553         hres = jsdisp_get_idx(jsthis, i, &v, ei, caller);
 554         if(hres == DISP_E_UNKNOWNNAME)
 555             hres = jsdisp_delete_idx(jsthis, i-1);
 556         else if(SUCCEEDED(hres))
 557             hres = jsdisp_propput_idx(jsthis, i-1, &v, ei, caller);
 558     }
 559
 560     if(SUCCEEDED(hres)) {
 561         hres = jsdisp_delete_idx(jsthis, length-1);
 562         if(SUCCEEDED(hres))
 563             hres = set_length(jsthis, ei, length-1);
 564     }
 565
 566     if(SUCCEEDED(hres) && retv)
 567         *retv = ret;
 568     else
 569         VariantClear(&ret);
 570     return hres;
 571 }
 572
 573 /* ECMA-262 3rd Edition    15.4.4.10 */
 574 static HRESULT Array_slice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 575         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 576 {
 577     jsdisp_t *arr, *jsthis;
 578     VARIANT v;
 579     DOUBLE range;
 580     DWORD length, start, end, idx;
 581     HRESULT hres;
 582
 583     TRACE("\n");
 584
 585     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 586     if(FAILED(hres))
 587         return hres;
 588
 589     if(arg_cnt(dp)) {
 590         hres = to_number(ctx, get_arg(dp, 0), ei, &v);
 591         if(FAILED(hres))
 592             return hres;
 593
 594         if(V_VT(&v) == VT_I4)
 595             range = V_I4(&v);
 596         else
 597             range = floor(V_R8(&v));
 598
 599         if(-range>length || isnan(range)) start = 0;
 600         else if(range < 0) start = range+length;
 601         else if(range <= length) start = range;
 602         else start = length;
 603     }
 604     else start = 0;
 605
 606     if(arg_cnt(dp)>1) {
 607         hres = to_number(ctx, get_arg(dp, 1), ei, &v);
 608         if(FAILED(hres))
 609             return hres;
 610
 611         if(V_VT(&v) == VT_I4)
 612             range = V_I4(&v);
 613         else
 614             range = floor(V_R8(&v));
 615
 616         if(-range>length) end = 0;
 617         else if(range < 0) end = range+length;
 618         else if(range <= length) end = range;
 619         else end = length;
 620     }
 621     else end = length;
 622
 623     hres = create_array(ctx, (end>start)?end-start:0, &arr);
 624     if(FAILED(hres))
 625         return hres;
 626
 627     for(idx=start; idx<end; idx++) {
 628         hres = jsdisp_get_idx(jsthis, idx, &v, ei, sp);
 629         if(hres == DISP_E_UNKNOWNNAME)
 630             continue;
 631
 632         if(SUCCEEDED(hres)) {
 633             hres = jsdisp_propput_idx(arr, idx-start, &v, ei, sp);
 634             VariantClear(&v);
 635         }
 636
 637         if(FAILED(hres)) {
 638             jsdisp_release(arr);
 639             return hres;
 640         }
 641     }
 642
 643     if(retv)
 644         var_set_jsdisp(retv, arr);
 645     else
 646         jsdisp_release(arr);
 647
 648     return S_OK;
 649 }
 650
 651 static HRESULT sort_cmp(script_ctx_t *ctx, jsdisp_t *cmp_func, VARIANT *v1, VARIANT *v2, jsexcept_t *ei,
 652         IServiceProvider *caller, INT *cmp)
 653 {
 654     HRESULT hres;
 655
 656     if(cmp_func) {
 657         VARIANTARG args[2];
 658         DISPPARAMS dp = {args, NULL, 2, 0};
 659         VARIANT tmp;
 660         VARIANT res;
 661
 662         args[0] = *v2;
 663         args[1] = *v1;
 664
 665         hres = jsdisp_call_value(cmp_func, DISPATCH_METHOD, &dp, &res, ei, caller);
 666         if(FAILED(hres))
 667             return hres;
 668
 669         hres = to_number(ctx, &res, ei, &tmp);
 670         VariantClear(&res);
 671         if(FAILED(hres))
 672             return hres;
 673
 674         if(V_VT(&tmp) == VT_I4)
 675             *cmp = V_I4(&tmp);
 676         else
 677             *cmp = V_R8(&tmp) > 0.0 ? 1 : -1;
 678     }else if(V_VT(v1) == VT_EMPTY) {
 679         *cmp = V_VT(v2) == VT_EMPTY ? 0 : 1;
 680     }else if(V_VT(v2) == VT_EMPTY) {
 681         *cmp = -1;
 682     }else if(is_num_vt(V_VT(v1)) && is_num_vt(V_VT(v2))) {
 683         DOUBLE d = num_val(v1)-num_val(v2);
 684         if(d > 0.0)
 685             *cmp = 1;
 686         else
 687             *cmp = d < -0.0 ? -1 : 0;
 688     }else {
 689         BSTR x, y;
 690
 691         hres = to_string(ctx, v1, ei, &x);
 692         if(FAILED(hres))
 693             return hres;
 694
 695         hres = to_string(ctx, v2, ei, &y);
 696         if(SUCCEEDED(hres)) {
 697             *cmp = strcmpW(x, y);
 698             SysFreeString(y);
 699         }
 700         SysFreeString(x);
 701         if(FAILED(hres))
 702             return hres;
 703     }
 704
 705     return S_OK;
 706 }
 707
 708 /* ECMA-262 3rd Edition    15.4.4.11 */
 709 static HRESULT Array_sort(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 710         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 711 {
 712     jsdisp_t *jsthis, *cmp_func = NULL;
 713     VARIANT *vtab, **sorttab = NULL;
 714     DWORD length;
 715     DWORD i;
 716     HRESULT hres = S_OK;
 717
 718     TRACE("\n");
 719
 720     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 721     if(FAILED(hres))
 722         return hres;
 723
 724     if(arg_cnt(dp) > 1) {
 725         WARN("invalid arg_cnt %d\n", arg_cnt(dp));
 726         return E_FAIL;
 727     }
 728
 729     if(arg_cnt(dp) == 1) {
 730         VARIANT *arg = get_arg(dp, 0);
 731
 732         if(V_VT(arg) != VT_DISPATCH) {
 733             WARN("arg is not dispatch\n");
 734             return E_FAIL;
 735         }
 736
 737
 738         cmp_func = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg));
 739         if(!cmp_func || !is_class(cmp_func, JSCLASS_FUNCTION)) {
 740             WARN("cmp_func is not a function\n");
 741             if(cmp_func)
 742                 jsdisp_release(cmp_func);
 743             return E_FAIL;
 744         }
 745     }
 746
 747     if(!length) {
 748         if(cmp_func)
 749             jsdisp_release(cmp_func);
 750         if(retv) {
 751             jsdisp_addref(jsthis);
 752             var_set_jsdisp(retv, jsthis);
 753         }
 754         return S_OK;
 755     }
 756
 757     vtab = heap_alloc_zero(length * sizeof(VARIANT));
 758     if(vtab) {
 759         for(i=0; i<length; i++) {
 760             hres = jsdisp_get_idx(jsthis, i, vtab+i, ei, caller);
 761             if(hres == DISP_E_UNKNOWNNAME) {
 762                 V_VT(vtab+i) = VT_EMPTY;
 763                 hres = S_OK;
 764             } else if(FAILED(hres)) {
 765                 WARN("Could not get elem %d: %08x\n", i, hres);
 766                 break;
 767             }
 768         }
 769     }else {
 770         hres = E_OUTOFMEMORY;
 771     }
 772
 773     if(SUCCEEDED(hres)) {
 774         sorttab = heap_alloc(length*2*sizeof(VARIANT*));
 775         if(!sorttab)
 776             hres = E_OUTOFMEMORY;
 777     }
 778
 779     /* merge-sort */
 780     if(SUCCEEDED(hres)) {
 781         VARIANT *tmpv, **tmpbuf;
 782         INT cmp;
 783
 784         tmpbuf = sorttab + length;
 785         for(i=0; i < length; i++)
 786             sorttab[i] = vtab+i;
 787
 788         for(i=0; i < length/2; i++) {
 789             hres = sort_cmp(ctx, cmp_func, sorttab[2*i+1], sorttab[2*i], ei, caller, &cmp);
 790             if(FAILED(hres))
 791                 break;
 792
 793             if(cmp < 0) {
 794                 tmpv = sorttab[2*i];
 795                 sorttab[2*i] = sorttab[2*i+1];
 796                 sorttab[2*i+1] = tmpv;
 797             }
 798         }
 799
 800         if(SUCCEEDED(hres)) {
 801             DWORD k, a, b, bend;
 802
 803             for(k=2; k < length; k *= 2) {
 804                 for(i=0; i+k < length; i += 2*k) {
 805                     a = b = 0;
 806                     if(i+2*k <= length)
 807                         bend = k;
 808                     else
 809                         bend = length - (i+k);
 810
 811                     memcpy(tmpbuf, sorttab+i, k*sizeof(VARIANT*));
 812
 813                     while(a < k && b < bend) {
 814                         hres = sort_cmp(ctx, cmp_func, tmpbuf[a], sorttab[i+k+b], ei, caller, &cmp);
 815                         if(FAILED(hres))
 816                             break;
 817
 818                         if(cmp < 0) {
 819                             sorttab[i+a+b] = tmpbuf[a];
 820                             a++;
 821                         }else {
 822                             sorttab[i+a+b] = sorttab[i+k+b];
 823                             b++;
 824                         }
 825                     }
 826
 827                     if(FAILED(hres))
 828                         break;
 829
 830                     if(a < k)
 831                         memcpy(sorttab+i+a+b, tmpbuf+a, (k-a)*sizeof(VARIANT*));
 832                 }
 833
 834                 if(FAILED(hres))
 835                     break;
 836             }
 837         }
 838
 839         for(i=0; SUCCEEDED(hres) && i < length; i++)
 840             hres = jsdisp_propput_idx(jsthis, i, sorttab[i], ei, caller);
 841     }
 842
 843     if(vtab) {
 844         for(i=0; i < length; i++)
 845             VariantClear(vtab+i);
 846         heap_free(vtab);
 847     }
 848     heap_free(sorttab);
 849     if(cmp_func)
 850         jsdisp_release(cmp_func);
 851
 852     if(FAILED(hres))
 853         return hres;
 854
 855     if(retv) {
 856         jsdisp_addref(jsthis);
 857         var_set_jsdisp(retv, jsthis);
 858     }
 859
 860     return S_OK;
 861 }
 862
 863 /* ECMA-262 3rd Edition    15.4.4.12 */
 864 static HRESULT Array_splice(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 865         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 866 {
 867     DWORD length, start=0, delete_cnt=0, argc, i, add_args = 0;
 868     jsdisp_t *ret_array = NULL, *jsthis;
 869     VARIANT v;
 870     HRESULT hres = S_OK;
 871
 872     TRACE("\n");
 873
 874     hres = get_length(ctx, vthis, ei, &jsthis, &length);
 875     if(FAILED(hres))
 876         return hres;
 877
 878     argc = arg_cnt(dp);
 879     if(argc >= 1) {
 880         hres = to_integer(ctx, get_arg(dp,0), ei, &v);
 881         if(FAILED(hres))
 882             return hres;
 883
 884         if(V_VT(&v) == VT_I4) {
 885             if(V_I4(&v) >= 0)
 886                 start = min(V_I4(&v), length);
 887             else
 888                 start = -V_I4(&v) > length ? 0 : length + V_I4(&v);
 889         }else {
 890             start = V_R8(&v) < 0.0 ? 0 : length;
 891         }
 892     }
 893
 894     if(argc >= 2) {
 895         hres = to_integer(ctx, get_arg(dp,1), ei, &v);
 896         if(FAILED(hres))
 897             return hres;
 898
 899         if(V_VT(&v) == VT_I4) {
 900             if(V_I4(&v) > 0)
 901                 delete_cnt = min(V_I4(&v), length-start);
 902         }else if(V_R8(&v) > 0.0) {
 903             delete_cnt = length-start;
 904         }
 905
 906         add_args = argc-2;
 907     }
 908
 909     if(retv) {
 910         hres = create_array(ctx, 0, &ret_array);
 911         if(FAILED(hres))
 912             return hres;
 913
 914         for(i=0; SUCCEEDED(hres) && i < delete_cnt; i++) {
 915             hres = jsdisp_get_idx(jsthis, start+i, &v, ei, caller);
 916             if(hres == DISP_E_UNKNOWNNAME)
 917                 hres = S_OK;
 918             else if(SUCCEEDED(hres))
 919                 hres = jsdisp_propput_idx(ret_array, i, &v, ei, caller);
 920         }
 921
 922         if(SUCCEEDED(hres)) {
 923             V_VT(&v) = VT_I4;
 924             V_I4(&v) = delete_cnt;
 925
 926             hres = jsdisp_propput_name(ret_array, lengthW, &v, ei, caller);
 927         }
 928     }
 929
 930     if(add_args < delete_cnt) {
 931         for(i = start; SUCCEEDED(hres) && i < length-delete_cnt; i++) {
 932             hres = jsdisp_get_idx(jsthis, i+delete_cnt, &v, ei, caller);
 933             if(hres == DISP_E_UNKNOWNNAME)
 934                 hres = jsdisp_delete_idx(jsthis, i+add_args);
 935             else if(SUCCEEDED(hres))
 936                 hres = jsdisp_propput_idx(jsthis, i+add_args, &v, ei, caller);
 937         }
 938
 939         for(i=length; SUCCEEDED(hres) && i != length-delete_cnt+add_args; i--)
 940             hres = jsdisp_delete_idx(jsthis, i-1);
 941     }else if(add_args > delete_cnt) {
 942         for(i=length-delete_cnt; SUCCEEDED(hres) && i != start; i--) {
 943             hres = jsdisp_get_idx(jsthis, i+delete_cnt-1, &v, ei, caller);
 944             if(hres == DISP_E_UNKNOWNNAME)
 945                 hres = jsdisp_delete_idx(jsthis, i+add_args-1);
 946             else if(SUCCEEDED(hres))
 947                 hres = jsdisp_propput_idx(jsthis, i+add_args-1, &v, ei, caller);
 948         }
 949     }
 950
 951     for(i=0; SUCCEEDED(hres) && i < add_args; i++)
 952         hres = jsdisp_propput_idx(jsthis, start+i, get_arg(dp,i+2), ei, caller);
 953
 954     if(SUCCEEDED(hres)) {
 955         V_VT(&v) = VT_I4;
 956         V_I4(&v) = length-delete_cnt+add_args;
 957         hres = jsdisp_propput_name(jsthis, lengthW, &v, ei, caller);
 958     }
 959
 960     if(FAILED(hres)) {
 961         if(ret_array)
 962             jsdisp_release(ret_array);
 963         return hres;
 964     }
 965
 966     if(retv)
 967         var_set_jsdisp(retv, ret_array);
 968     return S_OK;
 969 }
 970
 971 /* ECMA-262 3rd Edition    15.4.4.2 */
 972 static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
 973         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 974 {
 975     ArrayInstance *array;
 976
 977     TRACE("\n");
 978
 979     array = array_this(jsthis);
 980     if(!array)
 981         return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
 982
 983     return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei, sp);
 984 }
 985
 986 static HRESULT Array_toLocaleString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 987         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 988 {
 989     FIXME("\n");
 990     return E_NOTIMPL;
 991 }
 992
 993 /* ECMA-262 3rd Edition    15.4.4.13 */
 994 static HRESULT Array_unshift(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
 995         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 996 {
 997     jsdisp_t *jsthis;
 998     WCHAR buf[14], *buf_end, *str;
 999     DWORD argc, i, length;
1000     VARIANT var;
1001     DISPID id;
1002     HRESULT hres;
1003
1004     TRACE("\n");
1005
1006     hres = get_length(ctx, vthis, ei, &jsthis, &length);
1007     if(FAILED(hres))
1008         return hres;
1009
1010     argc = arg_cnt(dp);
1011     if(argc) {
1012         buf_end = buf + sizeof(buf)/sizeof(WCHAR)-1;
1013         *buf_end-- = 0;
1014         i = length;
1015
1016         while(i--) {
1017             str = idx_to_str(i, buf_end);
1018
1019             hres = jsdisp_get_id(jsthis, str, 0, &id);
1020             if(SUCCEEDED(hres)) {
1021                 hres = jsdisp_propget(jsthis, id, &var, ei, caller);
1022                 if(FAILED(hres))
1023                     return hres;
1024
1025                 hres = jsdisp_propput_idx(jsthis, i+argc, &var, ei, caller);
1026                 VariantClear(&var);
1027             }else if(hres == DISP_E_UNKNOWNNAME) {
1028                 hres = IDispatchEx_DeleteMemberByDispID(vthis->u.dispex, id);
1029             }
1030         }
1031
1032         if(FAILED(hres))
1033             return hres;
1034     }
1035
1036     for(i=0; i<argc; i++) {
1037         hres = jsdisp_propput_idx(jsthis, i, get_arg(dp,i), ei, caller);
1038         if(FAILED(hres))
1039             return hres;
1040     }
1041
1042     if(argc) {
1043         length += argc;
1044         hres = set_length(jsthis, ei, length);
1045         if(FAILED(hres))
1046             return hres;
1047     }
1048
1049     if(retv) {
1050         if(ctx->version < 2) {
1051             V_VT(retv) = VT_EMPTY;
1052         }else {
1053             V_VT(retv) = VT_I4;
1054             V_I4(retv) = length;
1055         }
1056     }
1057     return S_OK;
1058 }
1059
1060 static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
1061         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
1062 {
1063     TRACE("\n");
1064
1065     switch(flags) {
1066     case INVOKE_FUNC:
1067         return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
1068     case INVOKE_PROPERTYGET:
1069         return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei, sp);
1070     default:
1071         FIXME("unimplemented flags %x\n", flags);
1072         return E_NOTIMPL;
1073     }
1074
1075     return S_OK;
1076 }
1077
1078 static void Array_destructor(jsdisp_t *dispex)
1079 {
1080     heap_free(dispex);
1081 }
1082
1083 static void Array_on_put(jsdisp_t *dispex, const WCHAR *name)
1084 {
1085     ArrayInstance *array = (ArrayInstance*)dispex;
1086     const WCHAR *ptr = name;
1087     DWORD id = 0;
1088
1089     if(!isdigitW(*ptr))
1090         return;
1091
1092     while(*ptr && isdigitW(*ptr)) {
1093         id = id*10 + (*ptr-'0');
1094         ptr++;
1095     }
1096
1097     if(*ptr)
1098         return;
1099
1100     if(id >= array->length)
1101         array->length = id+1;
1102 }
1103
1104 static const builtin_prop_t Array_props[] = {
1105     {concatW,                Array_concat,               PROPF_METHOD|1},
1106     {joinW,                  Array_join,                 PROPF_METHOD|1},
1107     {lengthW,                Array_length,               0},
1108     {popW,                   Array_pop,                  PROPF_METHOD},
1109     {pushW,                  Array_push,                 PROPF_METHOD|1},
1110     {reverseW,               Array_reverse,              PROPF_METHOD},
1111     {shiftW,                 Array_shift,                PROPF_METHOD},
1112     {sliceW,                 Array_slice,                PROPF_METHOD|2},
1113     {sortW,                  Array_sort,                 PROPF_METHOD|1},
1114     {spliceW,                Array_splice,               PROPF_METHOD|2},
1115     {toLocaleStringW,        Array_toLocaleString,       PROPF_METHOD},
1116     {toStringW,              Array_toString,             PROPF_METHOD},
1117     {unshiftW,               Array_unshift,              PROPF_METHOD|1},
1118 };
1119
1120 static const builtin_info_t Array_info = {
1121     JSCLASS_ARRAY,
1122     {NULL, Array_value, 0},
1123     sizeof(Array_props)/sizeof(*Array_props),
1124     Array_props,
1125     Array_destructor,
1126     Array_on_put
1127 };
1128
1129 static HRESULT ArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
1130         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
1131 {
1132     jsdisp_t *obj;
1133     VARIANT *arg_var;
1134     DWORD i;
1135     HRESULT hres;
1136
1137     TRACE("\n");
1138
1139     switch(flags) {
1140     case DISPATCH_METHOD:
1141     case DISPATCH_CONSTRUCT: {
1142         if(arg_cnt(dp) == 1 && V_VT((arg_var = get_arg(dp, 0))) == VT_I4) {
1143             if(V_I4(arg_var) < 0)
1144                 return throw_range_error(ctx, ei, JS_E_INVALID_LENGTH, NULL);
1145
1146             hres = create_array(ctx, V_I4(arg_var), &obj);
1147             if(FAILED(hres))
1148                 return hres;
1149
1150             var_set_jsdisp(retv, obj);
1151             return S_OK;
1152         }
1153
1154         hres = create_array(ctx, arg_cnt(dp), &obj);
1155         if(FAILED(hres))
1156             return hres;
1157
1158         for(i=0; i < arg_cnt(dp); i++) {
1159             hres = jsdisp_propput_idx(obj, i, get_arg(dp, i), ei, caller);
1160             if(FAILED(hres))
1161                 break;
1162         }
1163         if(FAILED(hres)) {
1164             jsdisp_release(obj);
1165             return hres;
1166         }
1167
1168         var_set_jsdisp(retv, obj);
1169         break;
1170     }
1171     default:
1172         FIXME("unimplemented flags: %x\n", flags);
1173         return E_NOTIMPL;
1174     }
1175
1176     return S_OK;
1177 }
1178
1179 static HRESULT alloc_array(script_ctx_t *ctx, jsdisp_t *object_prototype, ArrayInstance **ret)
1180 {
1181     ArrayInstance *array;
1182     HRESULT hres;
1183
1184     array = heap_alloc_zero(sizeof(ArrayInstance));
1185     if(!array)
1186         return E_OUTOFMEMORY;
1187
1188     if(object_prototype)
1189         hres = init_dispex(&array->dispex, ctx, &Array_info, object_prototype);
1190     else
1191         hres = init_dispex_from_constr(&array->dispex, ctx, &Array_info, ctx->array_constr);
1192
1193     if(FAILED(hres)) {
1194         heap_free(array);
1195         return hres;
1196     }
1197
1198     *ret = array;
1199     return S_OK;
1200 }
1201
1202 HRESULT create_array_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
1203 {
1204     ArrayInstance *array;
1205     HRESULT hres;
1206
1207     static const WCHAR ArrayW[] = {'A','r','r','a','y',0};
1208
1209     hres = alloc_array(ctx, object_prototype, &array);
1210     if(FAILED(hres))
1211         return hres;
1212
1213     hres = create_builtin_function(ctx, ArrayConstr_value, ArrayW, NULL, PROPF_CONSTR|1, &array->dispex, ret);
1214
1215     jsdisp_release(&array->dispex);
1216     return hres;
1217 }
1218
1219 HRESULT create_array(script_ctx_t *ctx, DWORD length, jsdisp_t **ret)
1220 {
1221     ArrayInstance *array;
1222     HRESULT hres;
1223
1224     hres = alloc_array(ctx, NULL, &array);
1225     if(FAILED(hres))
1226         return hres;
1227
1228     array->length = length;
1229
1230     *ret = &array->dispex;
1231     return S_OK;
1232 }