dlls/jscript/dispex.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 <assert.h>
  20
  21 #include "jscript.h"
  22
  23 #include "wine/unicode.h"
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  27
  28 /*
  29  * This IID is used to get jsdisp_t objecto from interface.
  30  * We might consider using private interface instead.
  31  */
  32 static const IID IID_IDispatchJS =
  33         {0x719c3050,0xf9d3,0x11cf,{0xa4,0x93,0x00,0x40,0x05,0x23,0xa8,0xa6}};
  34
  35 #define FDEX_VERSION_MASK 0xf0000000
  36 #define GOLDEN_RATIO 0x9E3779B9U
  37
  38 typedef enum {
  39     PROP_VARIANT,
  40     PROP_BUILTIN,
  41     PROP_PROTREF,
  42     PROP_DELETED
  43 } prop_type_t;
  44
  45 struct _dispex_prop_t {
  46     WCHAR *name;
  47     unsigned hash;
  48     prop_type_t type;
  49     DWORD flags;
  50
  51     union {
  52         VARIANT var;
  53         const builtin_prop_t *p;
  54         DWORD ref;
  55     } u;
  56
  57     int bucket_head;
  58     int bucket_next;
  59 };
  60
  61 static inline DISPID prop_to_id(jsdisp_t *This, dispex_prop_t *prop)
  62 {
  63     return prop - This->props;
  64 }
  65
  66 static inline dispex_prop_t *get_prop(jsdisp_t *This, DISPID id)
  67 {
  68     if(id < 0 || id >= This->prop_cnt || This->props[id].type == PROP_DELETED)
  69         return NULL;
  70
  71     return This->props+id;
  72 }
  73
  74 static DWORD get_flags(jsdisp_t *This, dispex_prop_t *prop)
  75 {
  76     if(prop->type == PROP_PROTREF) {
  77         dispex_prop_t *parent = get_prop(This->prototype, prop->u.ref);
  78         if(!parent) {
  79             prop->type = PROP_DELETED;
  80             return 0;
  81         }
  82
  83         return get_flags(This->prototype, parent);
  84     }
  85
  86     return prop->flags;
  87 }
  88
  89 static const builtin_prop_t *find_builtin_prop(jsdisp_t *This, const WCHAR *name)
  90 {
  91     int min = 0, max, i, r;
  92
  93     max = This->builtin_info->props_cnt-1;
  94     while(min <= max) {
  95         i = (min+max)/2;
  96
  97         r = strcmpW(name, This->builtin_info->props[i].name);
  98         if(!r)
  99             return This->builtin_info->props + i;
 100
 101         if(r < 0)
 102             max = i-1;
 103         else
 104             min = i+1;
 105     }
 106
 107     return NULL;
 108 }
 109
 110 static inline unsigned string_hash(const WCHAR *name)
 111 {
 112     unsigned h = 0;
 113     for(; *name; name++)
 114         h = (h>>(sizeof(unsigned)*8-4)) ^ (h<<4) ^ tolowerW(*name);
 115     return h;
 116 }
 117
 118 static inline unsigned get_props_idx(jsdisp_t *This, unsigned hash)
 119 {
 120     return (hash*GOLDEN_RATIO) & (This->buf_size-1);
 121 }
 122
 123 static inline HRESULT resize_props(jsdisp_t *This)
 124 {
 125     dispex_prop_t *props;
 126     int i, bucket;
 127
 128     if(This->buf_size != This->prop_cnt)
 129         return S_FALSE;
 130
 131     props = heap_realloc(This->props, sizeof(dispex_prop_t)*This->buf_size*2);
 132     if(!props)
 133         return E_OUTOFMEMORY;
 134     This->buf_size *= 2;
 135     This->props = props;
 136
 137     for(i=0; i<This->buf_size; i++) {
 138         This->props[i].bucket_head = 0;
 139         This->props[i].bucket_next = 0;
 140     }
 141
 142     for(i=1; i<This->prop_cnt; i++) {
 143         props = This->props+i;
 144
 145         bucket = get_props_idx(This, props->hash);
 146         props->bucket_next = This->props[bucket].bucket_head;
 147         This->props[bucket].bucket_head = i;
 148     }
 149
 150     return S_OK;
 151 }
 152
 153 static inline dispex_prop_t* alloc_prop(jsdisp_t *This, const WCHAR *name, prop_type_t type, DWORD flags)
 154 {
 155     dispex_prop_t *prop;
 156     unsigned bucket;
 157
 158     if(FAILED(resize_props(This)))
 159         return NULL;
 160
 161     prop = &This->props[This->prop_cnt];
 162     prop->name = heap_strdupW(name);
 163     if(!prop->name)
 164         return NULL;
 165     prop->type = type;
 166     prop->flags = flags;
 167     prop->hash = string_hash(name);
 168
 169     bucket = get_props_idx(This, prop->hash);
 170     prop->bucket_next = This->props[bucket].bucket_head;
 171     This->props[bucket].bucket_head = This->prop_cnt++;
 172     return prop;
 173 }
 174
 175 static dispex_prop_t *alloc_protref(jsdisp_t *This, const WCHAR *name, DWORD ref)
 176 {
 177     dispex_prop_t *ret;
 178
 179     ret = alloc_prop(This, name, PROP_PROTREF, 0);
 180     if(!ret)
 181         return NULL;
 182
 183     ret->u.ref = ref;
 184     return ret;
 185 }
 186
 187 static HRESULT find_prop_name(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 188 {
 189     const builtin_prop_t *builtin;
 190     unsigned bucket, pos, prev = 0;
 191     dispex_prop_t *prop;
 192
 193     bucket = get_props_idx(This, hash);
 194     pos = This->props[bucket].bucket_head;
 195     while(pos != 0) {
 196         if(!strcmpW(name, This->props[pos].name)) {
 197             if(prev != 0) {
 198                 This->props[prev].bucket_next = This->props[pos].bucket_next;
 199                 This->props[pos].bucket_next = This->props[bucket].bucket_head;
 200                 This->props[bucket].bucket_head = pos;
 201             }
 202
 203             *ret = &This->props[pos];
 204             return S_OK;
 205         }
 206
 207         prev = pos;
 208         pos = This->props[pos].bucket_next;
 209     }
 210
 211     builtin = find_builtin_prop(This, name);
 212     if(builtin) {
 213         prop = alloc_prop(This, name, PROP_BUILTIN, builtin->flags);
 214         if(!prop)
 215             return E_OUTOFMEMORY;
 216
 217         prop->u.p = builtin;
 218         *ret = prop;
 219         return S_OK;
 220     }
 221
 222     *ret = NULL;
 223     return S_OK;
 224 }
 225
 226 static HRESULT find_prop_name_prot(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 227 {
 228     dispex_prop_t *prop, *del=NULL;
 229     HRESULT hres;
 230
 231     hres = find_prop_name(This, hash, name, &prop);
 232     if(FAILED(hres))
 233         return hres;
 234     if(prop && prop->type==PROP_DELETED) {
 235         del = prop;
 236     } else if(prop) {
 237         *ret = prop;
 238         return S_OK;
 239     }
 240
 241     if(This->prototype) {
 242         hres = find_prop_name_prot(This->prototype, hash, name, &prop);
 243         if(FAILED(hres))
 244             return hres;
 245         if(prop) {
 246             if(del) {
 247                 del->type = PROP_PROTREF;
 248                 del->flags = 0;
 249                 del->u.ref = prop - This->prototype->props;
 250                 prop = del;
 251             }else {
 252                 prop = alloc_protref(This, prop->name, prop - This->prototype->props);
 253                 if(!prop)
 254                     return E_OUTOFMEMORY;
 255             }
 256
 257             *ret = prop;
 258             return S_OK;
 259         }
 260     }
 261
 262     *ret = del;
 263     return S_OK;
 264 }
 265
 266 static HRESULT ensure_prop_name(jsdisp_t *This, const WCHAR *name, BOOL search_prot, DWORD create_flags, dispex_prop_t **ret)
 267 {
 268     dispex_prop_t *prop;
 269     HRESULT hres;
 270
 271     if(search_prot)
 272         hres = find_prop_name_prot(This, string_hash(name), name, &prop);
 273     else
 274         hres = find_prop_name(This, string_hash(name), name, &prop);
 275     if(SUCCEEDED(hres) && (!prop || prop->type==PROP_DELETED)) {
 276         TRACE("creating prop %s\n", debugstr_w(name));
 277
 278         if(prop) {
 279             prop->type = PROP_VARIANT;
 280             prop->flags = create_flags;
 281         }else {
 282             prop = alloc_prop(This, name, PROP_VARIANT, create_flags);
 283             if(!prop)
 284                 return E_OUTOFMEMORY;
 285         }
 286
 287         VariantInit(&prop->u.var);
 288     }
 289
 290     *ret = prop;
 291     return hres;
 292 }
 293
 294 static IDispatch *get_this(DISPPARAMS *dp)
 295 {
 296     DWORD i;
 297
 298     for(i=0; i < dp->cNamedArgs; i++) {
 299         if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
 300             if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
 301                 return V_DISPATCH(dp->rgvarg+i);
 302
 303             WARN("This is not VT_DISPATCH\n");
 304             return NULL;
 305         }
 306     }
 307
 308     TRACE("no this passed\n");
 309     return NULL;
 310 }
 311
 312 static HRESULT convert_params(const DISPPARAMS *dp, VARIANT *buf, unsigned *argc, VARIANT **ret)
 313 {
 314     const VARIANT *s;
 315     VARIANT *argv;
 316     unsigned cnt;
 317     unsigned i;
 318
 319     cnt = dp->cArgs - dp->cNamedArgs;
 320
 321     if(cnt > 6) {
 322         argv = heap_alloc(cnt * sizeof(VARIANT));
 323         if(!argv)
 324             return E_OUTOFMEMORY;
 325     }else {
 326         argv = buf;
 327     }
 328
 329     for(i = 0; i < cnt; i++) {
 330         s = dp->rgvarg+dp->cArgs-i-1;
 331         switch(V_VT(s)) {
 332         case VT_I2:
 333             V_VT(argv+i) = VT_I4;
 334             V_I4(argv+i) = V_I2(s);
 335             break;
 336         case VT_INT:
 337             V_VT(argv+i) = VT_I4;
 338             V_I4(argv+i) = V_INT(s);
 339             break;
 340         default:
 341             argv[i] = *s;
 342         }
 343     }
 344
 345     *argc = cnt;
 346     *ret = argv;
 347     return S_OK;
 348 }
 349
 350 static HRESULT invoke_prop_func(jsdisp_t *This, IDispatch *jsthis, dispex_prop_t *prop, WORD flags,
 351         unsigned argc, VARIANT *argv, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 352 {
 353     HRESULT hres;
 354
 355     switch(prop->type) {
 356     case PROP_BUILTIN: {
 357         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 358             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 359             return E_INVALIDARG;
 360         }
 361
 362         if(prop->name || This->builtin_info->class != JSCLASS_FUNCTION) {
 363             vdisp_t vthis;
 364
 365             if(jsthis)
 366                 set_disp(&vthis, jsthis);
 367             else
 368                 set_jsdisp(&vthis, This);
 369             hres = prop->u.p->invoke(This->ctx, &vthis, flags, argc, argv, retv, ei);
 370             vdisp_release(&vthis);
 371         }else {
 372             /* Function object calls are special case */
 373             hres = Function_invoke(This, jsthis, flags, argc, argv, retv, ei);
 374         }
 375         return hres;
 376     }
 377     case PROP_PROTREF:
 378         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref,
 379                 flags, argc, argv, retv, ei, caller);
 380     case PROP_VARIANT: {
 381         if(V_VT(&prop->u.var) != VT_DISPATCH) {
 382             FIXME("invoke vt %d\n", V_VT(&prop->u.var));
 383             return E_FAIL;
 384         }
 385
 386         TRACE("call %s %p\n", debugstr_w(prop->name), V_DISPATCH(&prop->u.var));
 387
 388         return disp_call_value(This->ctx, V_DISPATCH(&prop->u.var), jsthis, flags, argc, argv, retv, ei);
 389     }
 390     default:
 391         ERR("type %d\n", prop->type);
 392     }
 393
 394     return E_FAIL;
 395 }
 396
 397 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop, DISPPARAMS *dp,
 398         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 399 {
 400     HRESULT hres;
 401
 402     switch(prop->type) {
 403     case PROP_BUILTIN:
 404         if(prop->u.p->flags & PROPF_METHOD) {
 405             jsdisp_t *obj;
 406             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 407                     prop->u.p->flags, NULL, &obj);
 408             if(FAILED(hres))
 409                 break;
 410
 411             prop->type = PROP_VARIANT;
 412             var_set_jsdisp(&prop->u.var, obj);
 413             hres = VariantCopy(retv, &prop->u.var);
 414         }else {
 415             vdisp_t vthis;
 416
 417             set_jsdisp(&vthis, This);
 418             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYGET, 0, NULL, retv, ei);
 419             vdisp_release(&vthis);
 420         }
 421         break;
 422     case PROP_PROTREF:
 423         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, dp, retv, ei, caller);
 424         break;
 425     case PROP_VARIANT:
 426         hres = VariantCopy(retv, &prop->u.var);
 427         break;
 428     default:
 429         ERR("type %d\n", prop->type);
 430         return E_FAIL;
 431     }
 432
 433     if(FAILED(hres)) {
 434         TRACE("fail %08x\n", hres);
 435         return hres;
 436     }
 437
 438     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 439     return hres;
 440 }
 441
 442 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, VARIANT *val,
 443         jsexcept_t *ei, IServiceProvider *caller)
 444 {
 445     HRESULT hres;
 446
 447     if(prop->flags & PROPF_CONST)
 448         return S_OK;
 449
 450     switch(prop->type) {
 451     case PROP_BUILTIN:
 452         if(!(prop->flags & PROPF_METHOD)) {
 453             vdisp_t vthis;
 454
 455             set_jsdisp(&vthis, This);
 456             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYPUT, 1, val, NULL, ei);
 457             vdisp_release(&vthis);
 458             return hres;
 459         }
 460     case PROP_PROTREF:
 461         prop->type = PROP_VARIANT;
 462         prop->flags = PROPF_ENUM;
 463         V_VT(&prop->u.var) = VT_EMPTY;
 464         break;
 465     case PROP_VARIANT:
 466         VariantClear(&prop->u.var);
 467         break;
 468     default:
 469         ERR("type %d\n", prop->type);
 470         return E_FAIL;
 471     }
 472
 473     hres = VariantCopy(&prop->u.var, val);
 474     if(FAILED(hres))
 475         return hres;
 476
 477     if(This->builtin_info->on_put)
 478         This->builtin_info->on_put(This, prop->name);
 479
 480     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(val));
 481     return S_OK;
 482 }
 483
 484 static HRESULT fill_protrefs(jsdisp_t *This)
 485 {
 486     dispex_prop_t *iter, *prop;
 487     HRESULT hres;
 488
 489     if(!This->prototype)
 490         return S_OK;
 491
 492     fill_protrefs(This->prototype);
 493
 494     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 495         if(!iter->name)
 496             continue;
 497         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 498         if(FAILED(hres))
 499             return hres;
 500         if(!prop || prop->type==PROP_DELETED) {
 501             if(prop) {
 502                 prop->type = PROP_PROTREF;
 503                 prop->flags = 0;
 504                 prop->u.ref = iter - This->prototype->props;
 505             }else {
 506                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 507                 if(!prop)
 508                     return E_OUTOFMEMORY;
 509             }
 510         }
 511     }
 512
 513     return S_OK;
 514 }
 515
 516 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 517 {
 518     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 519 }
 520
 521 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 522 {
 523     jsdisp_t *This = impl_from_IDispatchEx(iface);
 524
 525     if(IsEqualGUID(&IID_IUnknown, riid)) {
 526         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 527         *ppv = &This->IDispatchEx_iface;
 528     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 529         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 530         *ppv = &This->IDispatchEx_iface;
 531     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 532         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 533         *ppv = &This->IDispatchEx_iface;
 534     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 535         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 536         jsdisp_addref(This);
 537         *ppv = This;
 538         return S_OK;
 539     }else {
 540         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 541         *ppv = NULL;
 542         return E_NOINTERFACE;
 543     }
 544
 545     IUnknown_AddRef((IUnknown*)*ppv);
 546     return S_OK;
 547 }
 548
 549 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 550 {
 551     jsdisp_t *This = impl_from_IDispatchEx(iface);
 552     LONG ref = InterlockedIncrement(&This->ref);
 553
 554     TRACE("(%p) ref=%d\n", This, ref);
 555
 556     return ref;
 557 }
 558
 559 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 560 {
 561     jsdisp_t *This = impl_from_IDispatchEx(iface);
 562     LONG ref = InterlockedDecrement(&This->ref);
 563
 564     TRACE("(%p) ref=%d\n", This, ref);
 565
 566     if(!ref) {
 567         dispex_prop_t *prop;
 568
 569         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 570             if(prop->type == PROP_VARIANT)
 571                 VariantClear(&prop->u.var);
 572             heap_free(prop->name);
 573         }
 574         heap_free(This->props);
 575         script_release(This->ctx);
 576         if(This->prototype)
 577             jsdisp_release(This->prototype);
 578
 579         if(This->builtin_info->destructor)
 580             This->builtin_info->destructor(This);
 581         else
 582             heap_free(This);
 583     }
 584
 585     return ref;
 586 }
 587
 588 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 589 {
 590     jsdisp_t *This = impl_from_IDispatchEx(iface);
 591
 592     TRACE("(%p)->(%p)\n", This, pctinfo);
 593
 594     *pctinfo = 1;
 595     return S_OK;
 596 }
 597
 598 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 599                                               ITypeInfo **ppTInfo)
 600 {
 601     jsdisp_t *This = impl_from_IDispatchEx(iface);
 602     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 603     return E_NOTIMPL;
 604 }
 605
 606 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 607                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 608                                                 DISPID *rgDispId)
 609 {
 610     jsdisp_t *This = impl_from_IDispatchEx(iface);
 611     UINT i;
 612     HRESULT hres;
 613
 614     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 615           lcid, rgDispId);
 616
 617     for(i=0; i < cNames; i++) {
 618         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 619         if(FAILED(hres))
 620             return hres;
 621     }
 622
 623     return S_OK;
 624 }
 625
 626 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 627                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 628                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 629 {
 630     jsdisp_t *This = impl_from_IDispatchEx(iface);
 631
 632     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 633           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 634
 635     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 636             pDispParams, pVarResult, pExcepInfo, NULL);
 637 }
 638
 639 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 640 {
 641     jsdisp_t *This = impl_from_IDispatchEx(iface);
 642
 643     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 644
 645     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 646         FIXME("Unsupported grfdex %x\n", grfdex);
 647         return E_NOTIMPL;
 648     }
 649
 650     return jsdisp_get_id(This, bstrName, grfdex, pid);
 651 }
 652
 653 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 654         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 655 {
 656     jsdisp_t *This = impl_from_IDispatchEx(iface);
 657     dispex_prop_t *prop;
 658     jsexcept_t jsexcept;
 659     HRESULT hres;
 660
 661     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 662
 663     if(pvarRes)
 664         V_VT(pvarRes) = VT_EMPTY;
 665
 666     prop = get_prop(This, id);
 667     if(!prop || prop->type == PROP_DELETED) {
 668         TRACE("invalid id\n");
 669         return DISP_E_MEMBERNOTFOUND;
 670     }
 671
 672     memset(&jsexcept, 0, sizeof(jsexcept));
 673
 674     switch(wFlags) {
 675     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 676         wFlags = DISPATCH_METHOD;
 677         /* fall through */
 678     case DISPATCH_METHOD:
 679     case DISPATCH_CONSTRUCT: {
 680         VARIANT *argv;
 681         unsigned argc;
 682         VARIANT buf[6];
 683
 684         hres = convert_params(pdp, buf, &argc, &argv);
 685         if(FAILED(hres))
 686             return hres;
 687
 688         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, argc, argv, pvarRes, &jsexcept, pspCaller);
 689         if(argv != buf)
 690             heap_free(argv);
 691         break;
 692     }
 693     case DISPATCH_PROPERTYGET:
 694         hres = prop_get(This, prop, pdp, pvarRes, &jsexcept, pspCaller);
 695         break;
 696     case DISPATCH_PROPERTYPUT: {
 697         DWORD i;
 698
 699         for(i=0; i < pdp->cNamedArgs; i++) {
 700             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 701                 break;
 702         }
 703
 704         if(i == pdp->cNamedArgs) {
 705             TRACE("no value to set\n");
 706             return DISP_E_PARAMNOTOPTIONAL;
 707         }
 708
 709         hres = prop_put(This, prop, pdp->rgvarg+i, &jsexcept, pspCaller);
 710         break;
 711     }
 712     default:
 713         FIXME("Unimplemented flags %x\n", wFlags);
 714         return E_INVALIDARG;
 715     }
 716
 717     if(pei)
 718         *pei = jsexcept.ei;
 719
 720     return hres;
 721 }
 722
 723 static HRESULT delete_prop(dispex_prop_t *prop)
 724 {
 725     if(prop->type == PROP_VARIANT) {
 726         VariantClear(&prop->u.var);
 727         prop->type = PROP_DELETED;
 728     }
 729     return S_OK;
 730 }
 731
 732 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 733 {
 734     jsdisp_t *This = impl_from_IDispatchEx(iface);
 735     dispex_prop_t *prop;
 736     HRESULT hres;
 737
 738     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 739
 740     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 741         FIXME("Unsupported grfdex %x\n", grfdex);
 742
 743     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 744     if(FAILED(hres))
 745         return hres;
 746     if(!prop) {
 747         TRACE("not found\n");
 748         return S_OK;
 749     }
 750
 751     return delete_prop(prop);
 752 }
 753
 754 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 755 {
 756     jsdisp_t *This = impl_from_IDispatchEx(iface);
 757     dispex_prop_t *prop;
 758
 759     TRACE("(%p)->(%x)\n", This, id);
 760
 761     prop = get_prop(This, id);
 762     if(!prop) {
 763         WARN("invalid id\n");
 764         return DISP_E_MEMBERNOTFOUND;
 765     }
 766
 767     return delete_prop(prop);
 768 }
 769
 770 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 771 {
 772     jsdisp_t *This = impl_from_IDispatchEx(iface);
 773     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 774     return E_NOTIMPL;
 775 }
 776
 777 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 778 {
 779     jsdisp_t *This = impl_from_IDispatchEx(iface);
 780     dispex_prop_t *prop;
 781
 782     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 783
 784     prop = get_prop(This, id);
 785     if(!prop || !prop->name || prop->type == PROP_DELETED)
 786         return DISP_E_MEMBERNOTFOUND;
 787
 788     *pbstrName = SysAllocString(prop->name);
 789     if(!*pbstrName)
 790         return E_OUTOFMEMORY;
 791
 792     return S_OK;
 793 }
 794
 795 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 796 {
 797     jsdisp_t *This = impl_from_IDispatchEx(iface);
 798     dispex_prop_t *iter;
 799     HRESULT hres;
 800
 801     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 802
 803     if(id == DISPID_STARTENUM) {
 804         hres = fill_protrefs(This);
 805         if(FAILED(hres))
 806             return hres;
 807     }
 808
 809     if(id+1>=0 && id+1<This->prop_cnt) {
 810         iter = &This->props[id+1];
 811     }else {
 812         *pid = DISPID_STARTENUM;
 813         return S_FALSE;
 814     }
 815
 816     while(iter < This->props + This->prop_cnt) {
 817         if(iter->name && (get_flags(This, iter) & PROPF_ENUM) && iter->type!=PROP_DELETED) {
 818             *pid = prop_to_id(This, iter);
 819             return S_OK;
 820         }
 821         iter++;
 822     }
 823
 824     *pid = DISPID_STARTENUM;
 825     return S_FALSE;
 826 }
 827
 828 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 829 {
 830     jsdisp_t *This = impl_from_IDispatchEx(iface);
 831     FIXME("(%p)->(%p)\n", This, ppunk);
 832     return E_NOTIMPL;
 833 }
 834
 835 static IDispatchExVtbl DispatchExVtbl = {
 836     DispatchEx_QueryInterface,
 837     DispatchEx_AddRef,
 838     DispatchEx_Release,
 839     DispatchEx_GetTypeInfoCount,
 840     DispatchEx_GetTypeInfo,
 841     DispatchEx_GetIDsOfNames,
 842     DispatchEx_Invoke,
 843     DispatchEx_GetDispID,
 844     DispatchEx_InvokeEx,
 845     DispatchEx_DeleteMemberByName,
 846     DispatchEx_DeleteMemberByDispID,
 847     DispatchEx_GetMemberProperties,
 848     DispatchEx_GetMemberName,
 849     DispatchEx_GetNextDispID,
 850     DispatchEx_GetNameSpaceParent
 851 };
 852
 853 jsdisp_t *as_jsdisp(IDispatch *disp)
 854 {
 855     assert(disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl);
 856     return impl_from_IDispatchEx((IDispatchEx*)disp);
 857 }
 858
 859 jsdisp_t *to_jsdisp(IDispatch *disp)
 860 {
 861     return disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl ? impl_from_IDispatchEx((IDispatchEx*)disp) : NULL;
 862 }
 863
 864 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 865 {
 866     TRACE("%p (%p)\n", dispex, prototype);
 867
 868     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 869     dispex->ref = 1;
 870     dispex->builtin_info = builtin_info;
 871
 872     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 873     if(!dispex->props)
 874         return E_OUTOFMEMORY;
 875
 876     dispex->prototype = prototype;
 877     if(prototype)
 878         jsdisp_addref(prototype);
 879
 880     dispex->prop_cnt = 1;
 881     if(builtin_info->value_prop.invoke) {
 882         dispex->props[0].type = PROP_BUILTIN;
 883         dispex->props[0].u.p = &builtin_info->value_prop;
 884     }else {
 885         dispex->props[0].type = PROP_DELETED;
 886     }
 887
 888     script_addref(ctx);
 889     dispex->ctx = ctx;
 890
 891     return S_OK;
 892 }
 893
 894 static const builtin_info_t dispex_info = {
 895     JSCLASS_NONE,
 896     {NULL, NULL, 0},
 897     0, NULL,
 898     NULL,
 899     NULL
 900 };
 901
 902 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 903 {
 904     jsdisp_t *ret;
 905     HRESULT hres;
 906
 907     ret = heap_alloc_zero(sizeof(jsdisp_t));
 908     if(!ret)
 909         return E_OUTOFMEMORY;
 910
 911     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 912     if(FAILED(hres))
 913         return hres;
 914
 915     *dispex = ret;
 916     return S_OK;
 917 }
 918
 919 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
 920 {
 921     jsdisp_t *prot = NULL;
 922     dispex_prop_t *prop;
 923     HRESULT hres;
 924
 925     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 926
 927     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
 928     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
 929         jsexcept_t jsexcept;
 930         VARIANT var;
 931
 932         V_VT(&var) = VT_EMPTY;
 933         memset(&jsexcept, 0, sizeof(jsexcept));
 934         hres = prop_get(constr, prop, NULL, &var, &jsexcept, NULL/*FIXME*/);
 935         if(FAILED(hres)) {
 936             ERR("Could not get prototype\n");
 937             return hres;
 938         }
 939
 940         if(V_VT(&var) == VT_DISPATCH)
 941             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 942         VariantClear(&var);
 943     }
 944
 945     hres = init_dispex(dispex, ctx, builtin_info, prot);
 946
 947     if(prot)
 948         jsdisp_release(prot);
 949     return hres;
 950 }
 951
 952 jsdisp_t *iface_to_jsdisp(IUnknown *iface)
 953 {
 954     jsdisp_t *ret;
 955     HRESULT hres;
 956
 957     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 958     if(FAILED(hres))
 959         return NULL;
 960
 961     return ret;
 962 }
 963
 964 static void ensure_retval_type(VARIANT *v)
 965 {
 966     switch(V_VT(v)) {
 967     case VT_I2:
 968         V_VT(v) = VT_I4;
 969         V_I4(v) = V_I2(v);
 970         break;
 971     case VT_INT:
 972         V_VT(v) = VT_I4;
 973         V_I4(v) = V_INT(v);
 974     }
 975 }
 976
 977 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
 978 {
 979     dispex_prop_t *prop;
 980     HRESULT hres;
 981
 982     if(flags & fdexNameEnsure)
 983         hres = ensure_prop_name(jsdisp, name, TRUE, PROPF_ENUM, &prop);
 984     else
 985         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
 986     if(FAILED(hres))
 987         return hres;
 988
 989     if(prop && prop->type!=PROP_DELETED) {
 990         *id = prop_to_id(jsdisp, prop);
 991         return S_OK;
 992     }
 993
 994     TRACE("not found %s\n", debugstr_w(name));
 995     return DISP_E_UNKNOWNNAME;
 996 }
 997
 998 HRESULT jsdisp_call_value(jsdisp_t *jsfunc, IDispatch *jsthis, WORD flags, unsigned argc, VARIANT *argv, VARIANT *retv,
 999         jsexcept_t *ei)
1000 {
1001     HRESULT hres;
1002
1003     if(is_class(jsfunc, JSCLASS_FUNCTION)) {
1004         hres = Function_invoke(jsfunc, jsthis, flags, argc, argv, retv, ei);
1005     }else {
1006         vdisp_t vdisp;
1007
1008         set_disp(&vdisp, jsthis);
1009         hres = jsfunc->builtin_info->value_prop.invoke(jsfunc->ctx, &vdisp, flags, argc, argv, retv, ei);
1010         vdisp_release(&vdisp);
1011     }
1012     return hres;
1013 }
1014
1015 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, unsigned argc, VARIANT *argv, VARIANT *retv, jsexcept_t *ei)
1016 {
1017     dispex_prop_t *prop;
1018
1019     memset(ei, 0, sizeof(*ei));
1020     if(retv)
1021         V_VT(retv) = VT_EMPTY;
1022
1023     prop = get_prop(disp, id);
1024     if(!prop)
1025         return DISP_E_MEMBERNOTFOUND;
1026
1027     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, retv, ei, NULL);
1028 }
1029
1030 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, unsigned argc, VARIANT *argv, VARIANT *retv,
1031         jsexcept_t *ei)
1032 {
1033     dispex_prop_t *prop;
1034     HRESULT hres;
1035
1036     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1037     if(FAILED(hres))
1038         return hres;
1039
1040     memset(ei, 0, sizeof(*ei));
1041     if(retv)
1042         V_VT(retv) = VT_EMPTY;
1043
1044     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, retv, ei, NULL);
1045 }
1046
1047 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, unsigned argc, VARIANT *argv,
1048         VARIANT *retv, jsexcept_t *ei)
1049 {
1050     IDispatchEx *dispex;
1051     jsdisp_t *jsdisp;
1052     VARIANT buf[6];
1053     DISPPARAMS dp;
1054     unsigned i;
1055     HRESULT hres;
1056
1057     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1058     if(jsdisp) {
1059         if(flags & DISPATCH_PROPERTYPUT) {
1060             FIXME("disp_call(propput) on builtin object\n");
1061             return E_FAIL;
1062         }
1063
1064         hres = jsdisp_call(jsdisp, id, flags, argc, argv, retv, ei);
1065         jsdisp_release(jsdisp);
1066         return hres;
1067     }
1068
1069     memset(ei, 0, sizeof(*ei));
1070     if(retv && argc)
1071         flags |= DISPATCH_PROPERTYGET;
1072
1073     dp.cArgs = argc;
1074
1075     if(flags & DISPATCH_PROPERTYPUT) {
1076         static DISPID propput_dispid = DISPID_PROPERTYPUT;
1077
1078         dp.cNamedArgs = 1;
1079         dp.rgdispidNamedArgs = &propput_dispid;
1080     }else {
1081         dp.cNamedArgs = 0;
1082         dp.rgdispidNamedArgs = NULL;
1083     }
1084
1085     if(argc > 6) {
1086         dp.rgvarg = heap_alloc(argc*sizeof(VARIANT));
1087         if(!dp.rgvarg)
1088             return E_OUTOFMEMORY;
1089     }else {
1090         dp.rgvarg = buf;
1091     }
1092
1093     for(i=0; i<argc; i++)
1094         dp.rgvarg[argc-i-1] = argv[i];
1095
1096     if(retv)
1097         V_VT(retv) = VT_EMPTY;
1098
1099     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1100     if(SUCCEEDED(hres)) {
1101         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, &dp, retv, &ei->ei, &ctx->jscaller->IServiceProvider_iface);
1102         IDispatchEx_Release(dispex);
1103     }else {
1104         UINT err = 0;
1105
1106         if(flags == DISPATCH_CONSTRUCT) {
1107             WARN("IDispatch cannot be constructor\n");
1108             return DISP_E_MEMBERNOTFOUND;
1109         }
1110
1111         TRACE("using IDispatch\n");
1112         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, &dp, retv, &ei->ei, &err);
1113     }
1114
1115     if(dp.rgvarg != buf)
1116         heap_free(dp.rgvarg);
1117     if(FAILED(hres))
1118         return hres;
1119
1120     if(retv)
1121         ensure_retval_type(retv);
1122     return S_OK;
1123 }
1124
1125 HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, IDispatch *jsthis, WORD flags, unsigned argc, VARIANT *argv,
1126         VARIANT *retv, jsexcept_t *ei)
1127 {
1128     jsdisp_t *jsdisp;
1129     IDispatchEx *dispex;
1130     VARIANT buf[6];
1131     DISPPARAMS dp;
1132     unsigned i;
1133     HRESULT hres;
1134
1135     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1136     if(jsdisp) {
1137         if(flags & DISPATCH_PROPERTYPUT) {
1138             FIXME("disp_call(propput) on builtin object\n");
1139             return E_FAIL;
1140         }
1141
1142         hres = jsdisp_call_value(jsdisp, jsthis, flags, argc, argv, retv, ei);
1143         jsdisp_release(jsdisp);
1144         return hres;
1145     }
1146
1147     memset(ei, 0, sizeof(*ei));
1148     if(retv && argc)
1149         flags |= DISPATCH_PROPERTYGET;
1150
1151
1152     if(jsthis) {
1153         static DISPID this_id = DISPID_THIS;
1154
1155         dp.cArgs = argc+1;
1156         dp.cNamedArgs = 1;
1157         dp.rgdispidNamedArgs = &this_id;
1158     }else {
1159         dp.cArgs = argc;
1160         dp.cNamedArgs = 0;
1161         dp.rgdispidNamedArgs = NULL;
1162     }
1163
1164     if(dp.cArgs > sizeof(buf)/sizeof(*buf)) {
1165         dp.rgvarg = heap_alloc(dp.cArgs*sizeof(VARIANT));
1166         if(!dp.rgvarg)
1167             return E_OUTOFMEMORY;
1168     }else {
1169         dp.rgvarg = buf;
1170     }
1171
1172     for(i=0; i<argc; i++)
1173         dp.rgvarg[argc-i-1] = argv[i];
1174     if(jsthis) {
1175         V_VT(dp.rgvarg) = VT_DISPATCH;
1176         V_DISPATCH(dp.rgvarg) = jsthis;
1177     }
1178
1179     if(retv)
1180         V_VT(retv) = VT_EMPTY;
1181     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1182     if(SUCCEEDED(hres)) {
1183         hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, ctx->lcid, flags, &dp, retv, &ei->ei,
1184                 &ctx->jscaller->IServiceProvider_iface);
1185         IDispatchEx_Release(dispex);
1186     }else {
1187         UINT err = 0;
1188
1189         if(flags == DISPATCH_CONSTRUCT) {
1190             WARN("IDispatch cannot be constructor\n");
1191             return DISP_E_MEMBERNOTFOUND;
1192         }
1193
1194         TRACE("using IDispatch\n");
1195         hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, ctx->lcid, flags, &dp, retv, &ei->ei, &err);
1196     }
1197
1198     if(dp.rgvarg != buf)
1199         heap_free(dp.rgvarg);
1200     if(FAILED(hres))
1201         return hres;
1202
1203     if(retv)
1204         ensure_retval_type(retv);
1205     return S_OK;
1206 }
1207
1208 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, VARIANT *val, jsexcept_t *ei)
1209 {
1210     dispex_prop_t *prop;
1211     HRESULT hres;
1212
1213     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM, &prop);
1214     if(FAILED(hres))
1215         return hres;
1216
1217     return prop_put(obj, prop, val, ei, NULL);
1218 }
1219
1220 HRESULT jsdisp_propput_const(jsdisp_t *obj, const WCHAR *name, VARIANT *val)
1221 {
1222     dispex_prop_t *prop;
1223     HRESULT hres;
1224
1225     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM|PROPF_CONST, &prop);
1226     if(FAILED(hres))
1227         return hres;
1228
1229     return VariantCopy(&prop->u.var, val);
1230 }
1231
1232 HRESULT jsdisp_propput_dontenum(jsdisp_t *obj, const WCHAR *name, VARIANT *val)
1233 {
1234     dispex_prop_t *prop;
1235     HRESULT hres;
1236
1237     hres = ensure_prop_name(obj, name, FALSE, 0, &prop);
1238     if(FAILED(hres))
1239         return hres;
1240
1241     return VariantCopy(&prop->u.var, val);
1242 }
1243
1244 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, VARIANT *val, jsexcept_t *ei)
1245 {
1246     WCHAR buf[12];
1247
1248     static const WCHAR formatW[] = {'%','d',0};
1249
1250     sprintfW(buf, formatW, idx);
1251     return jsdisp_propput_name(obj, buf, val, ei);
1252 }
1253
1254 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1255 {
1256     jsdisp_t *jsdisp;
1257     HRESULT hres;
1258
1259     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1260     if(jsdisp) {
1261         dispex_prop_t *prop;
1262
1263         prop = get_prop(jsdisp, id);
1264         if(prop)
1265             hres = prop_put(jsdisp, prop, val, ei, NULL);
1266         else
1267             hres = DISP_E_MEMBERNOTFOUND;
1268
1269         jsdisp_release(jsdisp);
1270     }else {
1271         DISPID dispid = DISPID_PROPERTYPUT;
1272         DISPPARAMS dp  = {val, &dispid, 1, 1};
1273         IDispatchEx *dispex;
1274
1275         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1276         if(SUCCEEDED(hres)) {
1277             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei,
1278                     &ctx->jscaller->IServiceProvider_iface);
1279             IDispatchEx_Release(dispex);
1280         }else {
1281             ULONG err = 0;
1282
1283             TRACE("using IDispatch\n");
1284             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, &err);
1285         }
1286     }
1287
1288     return hres;
1289 }
1290
1291 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, VARIANT *var, jsexcept_t *ei)
1292 {
1293     DISPPARAMS dp = {NULL, NULL, 0, 0};
1294     dispex_prop_t *prop;
1295     HRESULT hres;
1296
1297     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1298     if(FAILED(hres))
1299         return hres;
1300
1301     V_VT(var) = VT_EMPTY;
1302     if(!prop || prop->type==PROP_DELETED)
1303         return S_OK;
1304
1305     return prop_get(obj, prop, &dp, var, ei, NULL);
1306 }
1307
1308 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, VARIANT *var, jsexcept_t *ei)
1309 {
1310     WCHAR name[12];
1311     DISPPARAMS dp = {NULL, NULL, 0, 0};
1312     dispex_prop_t *prop;
1313     HRESULT hres;
1314
1315     static const WCHAR formatW[] = {'%','d',0};
1316
1317     sprintfW(name, formatW, idx);
1318
1319     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1320     if(FAILED(hres))
1321         return hres;
1322
1323     V_VT(var) = VT_EMPTY;
1324     if(!prop || prop->type==PROP_DELETED)
1325         return DISP_E_UNKNOWNNAME;
1326
1327     return prop_get(obj, prop, &dp, var, ei, NULL);
1328 }
1329
1330 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, VARIANT *val, jsexcept_t *ei)
1331 {
1332     DISPPARAMS dp  = {NULL,NULL,0,0};
1333     dispex_prop_t *prop;
1334
1335     prop = get_prop(jsdisp, id);
1336     if(!prop)
1337         return DISP_E_MEMBERNOTFOUND;
1338
1339     V_VT(val) = VT_EMPTY;
1340     return prop_get(jsdisp, prop, &dp, val, ei, NULL);
1341 }
1342
1343 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1344 {
1345     DISPPARAMS dp  = {NULL,NULL,0,0};
1346     IDispatchEx *dispex;
1347     jsdisp_t *jsdisp;
1348     HRESULT hres;
1349
1350     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1351     if(jsdisp) {
1352         hres = jsdisp_propget(jsdisp, id, val, ei);
1353         jsdisp_release(jsdisp);
1354         return hres;
1355     }
1356
1357     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1358     if(SUCCEEDED(hres)) {
1359         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei,
1360                 &ctx->jscaller->IServiceProvider_iface);
1361         IDispatchEx_Release(dispex);
1362     }else {
1363         ULONG err = 0;
1364
1365         TRACE("using IDispatch\n");
1366         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
1367     }
1368     if(FAILED(hres))
1369         return hres;
1370
1371     ensure_retval_type(val);
1372     return S_OK;
1373 }
1374
1375 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1376 {
1377     static const WCHAR formatW[] = {'%','d',0};
1378     WCHAR buf[12];
1379     dispex_prop_t *prop;
1380     HRESULT hres;
1381
1382     sprintfW(buf, formatW, idx);
1383
1384     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1385     if(FAILED(hres) || !prop)
1386         return hres;
1387
1388     return delete_prop(prop);
1389 }
1390
1391 HRESULT jsdisp_is_own_prop(jsdisp_t *obj, BSTR name, VARIANT_BOOL *ret)
1392 {
1393     dispex_prop_t *prop;
1394     HRESULT hres;
1395
1396     hres = find_prop_name(obj, string_hash(name), name, &prop);
1397     if(FAILED(hres))
1398         return hres;
1399
1400     *ret = prop && (prop->type == PROP_VARIANT || prop->type == PROP_BUILTIN) ? VARIANT_TRUE : VARIANT_FALSE;
1401     return S_OK;
1402 }