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_JSVAL,
  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         jsval_t val;
  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_JSVAL;
 280             prop->flags = create_flags;
 281             prop->u.val = jsval_undefined();
 282         }else {
 283             prop = alloc_prop(This, name, PROP_JSVAL, create_flags);
 284             if(!prop)
 285                 return E_OUTOFMEMORY;
 286         }
 287
 288         prop->u.val = jsval_undefined();
 289     }
 290
 291     *ret = prop;
 292     return hres;
 293 }
 294
 295 static IDispatch *get_this(DISPPARAMS *dp)
 296 {
 297     DWORD i;
 298
 299     for(i=0; i < dp->cNamedArgs; i++) {
 300         if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
 301             if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
 302                 return V_DISPATCH(dp->rgvarg+i);
 303
 304             WARN("This is not VT_DISPATCH\n");
 305             return NULL;
 306         }
 307     }
 308
 309     TRACE("no this passed\n");
 310     return NULL;
 311 }
 312
 313 static HRESULT convert_params(const DISPPARAMS *dp, jsval_t *buf, unsigned *argc, jsval_t **ret)
 314 {
 315     jsval_t *argv;
 316     unsigned cnt;
 317     unsigned i;
 318     HRESULT hres;
 319
 320     cnt = dp->cArgs - dp->cNamedArgs;
 321
 322     if(cnt > 6) {
 323         argv = heap_alloc(cnt * sizeof(*argv));
 324         if(!argv)
 325             return E_OUTOFMEMORY;
 326     }else {
 327         argv = buf;
 328     }
 329
 330     for(i = 0; i < cnt; i++) {
 331         hres = variant_to_jsval(dp->rgvarg+dp->cArgs-i-1, argv+i);
 332         if(FAILED(hres)) {
 333             while(i--)
 334                 jsval_release(argv[i]);
 335             if(argv != buf)
 336                 heap_free(argv);
 337             return hres;
 338         }
 339     }
 340
 341     *argc = cnt;
 342     *ret = argv;
 343     return S_OK;
 344 }
 345
 346 static HRESULT invoke_prop_func(jsdisp_t *This, IDispatch *jsthis, dispex_prop_t *prop, WORD flags,
 347         unsigned argc, jsval_t *argv, jsval_t *r, IServiceProvider *caller)
 348 {
 349     HRESULT hres;
 350
 351     switch(prop->type) {
 352     case PROP_BUILTIN: {
 353         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 354             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 355             return E_INVALIDARG;
 356         }
 357
 358         if(prop->name || This->builtin_info->class != JSCLASS_FUNCTION) {
 359             vdisp_t vthis;
 360
 361             if(jsthis)
 362                 set_disp(&vthis, jsthis);
 363             else
 364                 set_jsdisp(&vthis, This);
 365             hres = prop->u.p->invoke(This->ctx, &vthis, flags, argc, argv, r);
 366             vdisp_release(&vthis);
 367         }else {
 368             /* Function object calls are special case */
 369             hres = Function_invoke(This, jsthis, flags, argc, argv, r);
 370         }
 371         return hres;
 372     }
 373     case PROP_PROTREF:
 374         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref,
 375                 flags, argc, argv, r, caller);
 376     case PROP_JSVAL: {
 377         if(!is_object_instance(prop->u.val)) {
 378             FIXME("invoke %s\n", debugstr_jsval(prop->u.val));
 379             return E_FAIL;
 380         }
 381
 382         TRACE("call %s %p\n", debugstr_w(prop->name), get_object(prop->u.val));
 383
 384         return disp_call_value(This->ctx, get_object(prop->u.val), jsthis, flags, argc, argv, r);
 385     }
 386     default:
 387         ERR("type %d\n", prop->type);
 388     }
 389
 390     return E_FAIL;
 391 }
 392
 393 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop, DISPPARAMS *dp,
 394         jsval_t *r, IServiceProvider *caller)
 395 {
 396     HRESULT hres;
 397
 398     switch(prop->type) {
 399     case PROP_BUILTIN:
 400         if(prop->u.p->flags & PROPF_METHOD) {
 401             jsdisp_t *obj;
 402             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 403                     prop->u.p->flags, NULL, &obj);
 404             if(FAILED(hres))
 405                 break;
 406
 407             prop->type = PROP_JSVAL;
 408             prop->u.val = jsval_obj(obj);
 409
 410             jsdisp_addref(obj);
 411             *r = jsval_obj(obj);
 412         }else {
 413             vdisp_t vthis;
 414
 415             set_jsdisp(&vthis, This);
 416             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYGET, 0, NULL, r);
 417             vdisp_release(&vthis);
 418         }
 419         break;
 420     case PROP_PROTREF:
 421         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, dp, r, caller);
 422         break;
 423     case PROP_JSVAL:
 424         hres = jsval_copy(prop->u.val, r);
 425         break;
 426     default:
 427         ERR("type %d\n", prop->type);
 428         return E_FAIL;
 429     }
 430
 431     if(FAILED(hres)) {
 432         TRACE("fail %08x\n", hres);
 433         return hres;
 434     }
 435
 436     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_jsval(*r));
 437     return hres;
 438 }
 439
 440 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, jsval_t val, IServiceProvider *caller)
 441 {
 442     HRESULT hres;
 443
 444     if(prop->flags & PROPF_CONST)
 445         return S_OK;
 446
 447     switch(prop->type) {
 448     case PROP_BUILTIN:
 449         if(!(prop->flags & PROPF_METHOD)) {
 450             vdisp_t vthis;
 451
 452             set_jsdisp(&vthis, This);
 453             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYPUT, 1, &val, NULL);
 454             vdisp_release(&vthis);
 455             return hres;
 456         }
 457     case PROP_PROTREF:
 458         prop->type = PROP_JSVAL;
 459         prop->flags = PROPF_ENUM;
 460         prop->u.val = jsval_undefined();
 461         break;
 462     case PROP_JSVAL:
 463         jsval_release(prop->u.val);
 464         break;
 465     default:
 466         ERR("type %d\n", prop->type);
 467         return E_FAIL;
 468     }
 469
 470     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_jsval(val));
 471
 472     hres = jsval_copy(val, &prop->u.val);
 473     if(FAILED(hres)) {
 474         prop->u.val = jsval_undefined();
 475         return hres;
 476     }
 477
 478     if(This->builtin_info->on_put)
 479         This->builtin_info->on_put(This, prop->name);
 480
 481     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_jsval(val));
 482     return S_OK;
 483 }
 484
 485 static HRESULT fill_protrefs(jsdisp_t *This)
 486 {
 487     dispex_prop_t *iter, *prop;
 488     HRESULT hres;
 489
 490     if(!This->prototype)
 491         return S_OK;
 492
 493     fill_protrefs(This->prototype);
 494
 495     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 496         if(!iter->name)
 497             continue;
 498         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 499         if(FAILED(hres))
 500             return hres;
 501         if(!prop || prop->type==PROP_DELETED) {
 502             if(prop) {
 503                 prop->type = PROP_PROTREF;
 504                 prop->flags = 0;
 505                 prop->u.ref = iter - This->prototype->props;
 506             }else {
 507                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 508                 if(!prop)
 509                     return E_OUTOFMEMORY;
 510             }
 511         }
 512     }
 513
 514     return S_OK;
 515 }
 516
 517 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 518 {
 519     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 520 }
 521
 522 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 523 {
 524     jsdisp_t *This = impl_from_IDispatchEx(iface);
 525
 526     if(IsEqualGUID(&IID_IUnknown, riid)) {
 527         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 528         *ppv = &This->IDispatchEx_iface;
 529     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 530         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 531         *ppv = &This->IDispatchEx_iface;
 532     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 533         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 534         *ppv = &This->IDispatchEx_iface;
 535     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 536         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 537         jsdisp_addref(This);
 538         *ppv = This;
 539         return S_OK;
 540     }else {
 541         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 542         *ppv = NULL;
 543         return E_NOINTERFACE;
 544     }
 545
 546     jsdisp_addref(This);
 547     return S_OK;
 548 }
 549
 550 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 551 {
 552     jsdisp_t *This = impl_from_IDispatchEx(iface);
 553     jsdisp_addref(This);
 554     return This->ref;
 555 }
 556
 557 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 558 {
 559     jsdisp_t *This = impl_from_IDispatchEx(iface);
 560     ULONG ref = --This->ref;
 561     if(!ref)
 562         jsdisp_free(This);
 563     return ref;
 564 }
 565
 566 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 567 {
 568     jsdisp_t *This = impl_from_IDispatchEx(iface);
 569
 570     TRACE("(%p)->(%p)\n", This, pctinfo);
 571
 572     *pctinfo = 1;
 573     return S_OK;
 574 }
 575
 576 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 577                                               ITypeInfo **ppTInfo)
 578 {
 579     jsdisp_t *This = impl_from_IDispatchEx(iface);
 580     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 581     return E_NOTIMPL;
 582 }
 583
 584 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 585                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 586                                                 DISPID *rgDispId)
 587 {
 588     jsdisp_t *This = impl_from_IDispatchEx(iface);
 589     UINT i;
 590     HRESULT hres;
 591
 592     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 593           lcid, rgDispId);
 594
 595     for(i=0; i < cNames; i++) {
 596         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 597         if(FAILED(hres))
 598             return hres;
 599     }
 600
 601     return S_OK;
 602 }
 603
 604 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 605                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 606                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 607 {
 608     jsdisp_t *This = impl_from_IDispatchEx(iface);
 609
 610     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 611           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 612
 613     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 614             pDispParams, pVarResult, pExcepInfo, NULL);
 615 }
 616
 617 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 618 {
 619     jsdisp_t *This = impl_from_IDispatchEx(iface);
 620
 621     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 622
 623     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 624         FIXME("Unsupported grfdex %x\n", grfdex);
 625         return E_NOTIMPL;
 626     }
 627
 628     return jsdisp_get_id(This, bstrName, grfdex, pid);
 629 }
 630
 631 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 632         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 633 {
 634     jsdisp_t *This = impl_from_IDispatchEx(iface);
 635     dispex_prop_t *prop;
 636     HRESULT hres;
 637
 638     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 639
 640     if(pvarRes)
 641         V_VT(pvarRes) = VT_EMPTY;
 642
 643     prop = get_prop(This, id);
 644     if(!prop || prop->type == PROP_DELETED) {
 645         TRACE("invalid id\n");
 646         return DISP_E_MEMBERNOTFOUND;
 647     }
 648
 649     clear_ei(This->ctx);
 650
 651     switch(wFlags) {
 652     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 653         wFlags = DISPATCH_METHOD;
 654         /* fall through */
 655     case DISPATCH_METHOD:
 656     case DISPATCH_CONSTRUCT: {
 657         jsval_t *argv, buf[6], r;
 658         unsigned argc;
 659
 660         hres = convert_params(pdp, buf, &argc, &argv);
 661         if(FAILED(hres))
 662             return hres;
 663
 664         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, argc, argv, pvarRes ? &r : NULL, pspCaller);
 665         if(argv != buf)
 666             heap_free(argv);
 667         if(SUCCEEDED(hres) && pvarRes) {
 668             hres = jsval_to_variant(r, pvarRes);
 669             jsval_release(r);
 670         }
 671         break;
 672     }
 673     case DISPATCH_PROPERTYGET: {
 674         jsval_t r;
 675
 676         hres = prop_get(This, prop, pdp, &r, pspCaller);
 677         if(SUCCEEDED(hres)) {
 678             hres = jsval_to_variant(r, pvarRes);
 679             jsval_release(r);
 680         }
 681         break;
 682     }
 683     case DISPATCH_PROPERTYPUT: {
 684         jsval_t val;
 685         DWORD i;
 686
 687         for(i=0; i < pdp->cNamedArgs; i++) {
 688             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 689                 break;
 690         }
 691
 692         if(i == pdp->cNamedArgs) {
 693             TRACE("no value to set\n");
 694             return DISP_E_PARAMNOTOPTIONAL;
 695         }
 696
 697         hres = variant_to_jsval(pdp->rgvarg+i, &val);
 698         if(FAILED(hres))
 699             return hres;
 700
 701         hres = prop_put(This, prop, val, pspCaller);
 702         jsval_release(val);
 703         break;
 704     }
 705     default:
 706         FIXME("Unimplemented flags %x\n", wFlags);
 707         return E_INVALIDARG;
 708     }
 709
 710     if(pei)
 711         *pei = This->ctx->ei.ei;
 712     return hres;
 713 }
 714
 715 static HRESULT delete_prop(dispex_prop_t *prop)
 716 {
 717     if(prop->type == PROP_JSVAL) {
 718         jsval_release(prop->u.val);
 719         prop->type = PROP_DELETED;
 720     }
 721     return S_OK;
 722 }
 723
 724 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 725 {
 726     jsdisp_t *This = impl_from_IDispatchEx(iface);
 727     dispex_prop_t *prop;
 728     HRESULT hres;
 729
 730     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 731
 732     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 733         FIXME("Unsupported grfdex %x\n", grfdex);
 734
 735     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 736     if(FAILED(hres))
 737         return hres;
 738     if(!prop) {
 739         TRACE("not found\n");
 740         return S_OK;
 741     }
 742
 743     return delete_prop(prop);
 744 }
 745
 746 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 747 {
 748     jsdisp_t *This = impl_from_IDispatchEx(iface);
 749     dispex_prop_t *prop;
 750
 751     TRACE("(%p)->(%x)\n", This, id);
 752
 753     prop = get_prop(This, id);
 754     if(!prop) {
 755         WARN("invalid id\n");
 756         return DISP_E_MEMBERNOTFOUND;
 757     }
 758
 759     return delete_prop(prop);
 760 }
 761
 762 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 763 {
 764     jsdisp_t *This = impl_from_IDispatchEx(iface);
 765     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 766     return E_NOTIMPL;
 767 }
 768
 769 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 770 {
 771     jsdisp_t *This = impl_from_IDispatchEx(iface);
 772     dispex_prop_t *prop;
 773
 774     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 775
 776     prop = get_prop(This, id);
 777     if(!prop || !prop->name || prop->type == PROP_DELETED)
 778         return DISP_E_MEMBERNOTFOUND;
 779
 780     *pbstrName = SysAllocString(prop->name);
 781     if(!*pbstrName)
 782         return E_OUTOFMEMORY;
 783
 784     return S_OK;
 785 }
 786
 787 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 788 {
 789     jsdisp_t *This = impl_from_IDispatchEx(iface);
 790     dispex_prop_t *iter;
 791     HRESULT hres;
 792
 793     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 794
 795     if(id == DISPID_STARTENUM) {
 796         hres = fill_protrefs(This);
 797         if(FAILED(hres))
 798             return hres;
 799     }
 800
 801     if(id+1>=0 && id+1<This->prop_cnt) {
 802         iter = &This->props[id+1];
 803     }else {
 804         *pid = DISPID_STARTENUM;
 805         return S_FALSE;
 806     }
 807
 808     while(iter < This->props + This->prop_cnt) {
 809         if(iter->name && (get_flags(This, iter) & PROPF_ENUM) && iter->type!=PROP_DELETED) {
 810             *pid = prop_to_id(This, iter);
 811             return S_OK;
 812         }
 813         iter++;
 814     }
 815
 816     *pid = DISPID_STARTENUM;
 817     return S_FALSE;
 818 }
 819
 820 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 821 {
 822     jsdisp_t *This = impl_from_IDispatchEx(iface);
 823     FIXME("(%p)->(%p)\n", This, ppunk);
 824     return E_NOTIMPL;
 825 }
 826
 827 static IDispatchExVtbl DispatchExVtbl = {
 828     DispatchEx_QueryInterface,
 829     DispatchEx_AddRef,
 830     DispatchEx_Release,
 831     DispatchEx_GetTypeInfoCount,
 832     DispatchEx_GetTypeInfo,
 833     DispatchEx_GetIDsOfNames,
 834     DispatchEx_Invoke,
 835     DispatchEx_GetDispID,
 836     DispatchEx_InvokeEx,
 837     DispatchEx_DeleteMemberByName,
 838     DispatchEx_DeleteMemberByDispID,
 839     DispatchEx_GetMemberProperties,
 840     DispatchEx_GetMemberName,
 841     DispatchEx_GetNextDispID,
 842     DispatchEx_GetNameSpaceParent
 843 };
 844
 845 jsdisp_t *as_jsdisp(IDispatch *disp)
 846 {
 847     assert(disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl);
 848     return impl_from_IDispatchEx((IDispatchEx*)disp);
 849 }
 850
 851 jsdisp_t *to_jsdisp(IDispatch *disp)
 852 {
 853     return disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl ? impl_from_IDispatchEx((IDispatchEx*)disp) : NULL;
 854 }
 855
 856 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 857 {
 858     TRACE("%p (%p)\n", dispex, prototype);
 859
 860     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 861     dispex->ref = 1;
 862     dispex->builtin_info = builtin_info;
 863
 864     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 865     if(!dispex->props)
 866         return E_OUTOFMEMORY;
 867
 868     dispex->prototype = prototype;
 869     if(prototype)
 870         jsdisp_addref(prototype);
 871
 872     dispex->prop_cnt = 1;
 873     if(builtin_info->value_prop.invoke) {
 874         dispex->props[0].type = PROP_BUILTIN;
 875         dispex->props[0].u.p = &builtin_info->value_prop;
 876     }else {
 877         dispex->props[0].type = PROP_DELETED;
 878     }
 879
 880     script_addref(ctx);
 881     dispex->ctx = ctx;
 882
 883     return S_OK;
 884 }
 885
 886 static const builtin_info_t dispex_info = {
 887     JSCLASS_NONE,
 888     {NULL, NULL, 0},
 889     0, NULL,
 890     NULL,
 891     NULL
 892 };
 893
 894 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 895 {
 896     jsdisp_t *ret;
 897     HRESULT hres;
 898
 899     ret = heap_alloc_zero(sizeof(jsdisp_t));
 900     if(!ret)
 901         return E_OUTOFMEMORY;
 902
 903     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 904     if(FAILED(hres)) {
 905         heap_free(ret);
 906         return hres;
 907     }
 908
 909     *dispex = ret;
 910     return S_OK;
 911 }
 912
 913 void jsdisp_free(jsdisp_t *obj)
 914 {
 915     dispex_prop_t *prop;
 916
 917     TRACE("(%p)\n", obj);
 918
 919     for(prop = obj->props; prop < obj->props+obj->prop_cnt; prop++) {
 920         if(prop->type == PROP_JSVAL)
 921             jsval_release(prop->u.val);
 922         heap_free(prop->name);
 923     }
 924     heap_free(obj->props);
 925     script_release(obj->ctx);
 926     if(obj->prototype)
 927         jsdisp_release(obj->prototype);
 928
 929     if(obj->builtin_info->destructor)
 930         obj->builtin_info->destructor(obj);
 931     else
 932         heap_free(obj);
 933 }
 934
 935 #ifdef TRACE_REFCNT
 936
 937 jsdisp_t *jsdisp_addref(jsdisp_t *jsdisp)
 938 {
 939     ULONG ref = ++jsdisp->ref;
 940     TRACE("(%p) ref=%d\n", jsdisp, ref);
 941     return jsdisp;
 942 }
 943
 944 void jsdisp_release(jsdisp_t *jsdisp)
 945 {
 946     ULONG ref = --jsdisp->ref;
 947
 948     TRACE("(%p) ref=%d\n", jsdisp, ref);
 949
 950     if(!ref)
 951         jsdisp_free(jsdisp);
 952 }
 953
 954 #endif
 955
 956 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
 957 {
 958     jsdisp_t *prot = NULL;
 959     dispex_prop_t *prop;
 960     HRESULT hres;
 961
 962     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 963
 964     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
 965     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
 966         jsval_t val;
 967
 968         hres = prop_get(constr, prop, NULL, &val, NULL);
 969         if(FAILED(hres)) {
 970             ERR("Could not get prototype\n");
 971             return hres;
 972         }
 973
 974         if(is_object_instance(val))
 975             prot = iface_to_jsdisp((IUnknown*)get_object(val));
 976         jsval_release(val);
 977     }
 978
 979     hres = init_dispex(dispex, ctx, builtin_info, prot);
 980
 981     if(prot)
 982         jsdisp_release(prot);
 983     return hres;
 984 }
 985
 986 jsdisp_t *iface_to_jsdisp(IUnknown *iface)
 987 {
 988     jsdisp_t *ret;
 989     HRESULT hres;
 990
 991     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 992     if(FAILED(hres))
 993         return NULL;
 994
 995     return ret;
 996 }
 997
 998 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
 999 {
1000     dispex_prop_t *prop;
1001     HRESULT hres;
1002
1003     if(flags & fdexNameEnsure)
1004         hres = ensure_prop_name(jsdisp, name, TRUE, PROPF_ENUM, &prop);
1005     else
1006         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
1007     if(FAILED(hres))
1008         return hres;
1009
1010     if(prop && prop->type!=PROP_DELETED) {
1011         *id = prop_to_id(jsdisp, prop);
1012         return S_OK;
1013     }
1014
1015     TRACE("not found %s\n", debugstr_w(name));
1016     return DISP_E_UNKNOWNNAME;
1017 }
1018
1019 HRESULT jsdisp_call_value(jsdisp_t *jsfunc, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1020 {
1021     HRESULT hres;
1022
1023     if(is_class(jsfunc, JSCLASS_FUNCTION)) {
1024         hres = Function_invoke(jsfunc, jsthis, flags, argc, argv, r);
1025     }else {
1026         vdisp_t vdisp;
1027
1028         set_disp(&vdisp, jsthis);
1029         hres = jsfunc->builtin_info->value_prop.invoke(jsfunc->ctx, &vdisp, flags, argc, argv, r);
1030         vdisp_release(&vdisp);
1031     }
1032     return hres;
1033 }
1034
1035 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1036 {
1037     dispex_prop_t *prop;
1038
1039     prop = get_prop(disp, id);
1040     if(!prop)
1041         return DISP_E_MEMBERNOTFOUND;
1042
1043     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, r, NULL);
1044 }
1045
1046 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1047 {
1048     dispex_prop_t *prop;
1049     HRESULT hres;
1050
1051     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1052     if(FAILED(hres))
1053         return hres;
1054
1055     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, r, NULL);
1056 }
1057
1058 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, unsigned argc, jsval_t *argv, jsval_t *ret)
1059 {
1060     IDispatchEx *dispex;
1061     jsdisp_t *jsdisp;
1062     VARIANT buf[6], retv;
1063     DISPPARAMS dp;
1064     unsigned i;
1065     HRESULT hres;
1066
1067     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1068     if(jsdisp) {
1069         if(flags & DISPATCH_PROPERTYPUT) {
1070             FIXME("disp_call(propput) on builtin object\n");
1071             return E_FAIL;
1072         }
1073
1074         hres = jsdisp_call(jsdisp, id, flags, argc, argv, ret);
1075         jsdisp_release(jsdisp);
1076         return hres;
1077     }
1078
1079     if(ret && argc)
1080         flags |= DISPATCH_PROPERTYGET;
1081
1082     dp.cArgs = argc;
1083
1084     if(flags & DISPATCH_PROPERTYPUT) {
1085         static DISPID propput_dispid = DISPID_PROPERTYPUT;
1086
1087         dp.cNamedArgs = 1;
1088         dp.rgdispidNamedArgs = &propput_dispid;
1089     }else {
1090         dp.cNamedArgs = 0;
1091         dp.rgdispidNamedArgs = NULL;
1092     }
1093
1094     if(argc > 6) {
1095         dp.rgvarg = heap_alloc(argc*sizeof(VARIANT));
1096         if(!dp.rgvarg)
1097             return E_OUTOFMEMORY;
1098     }else {
1099         dp.rgvarg = buf;
1100     }
1101
1102     for(i=0; i<argc; i++) {
1103         hres = jsval_to_variant(argv[i], dp.rgvarg+argc-i-1);
1104         if(FAILED(hres)) {
1105             while(i--)
1106                 VariantClear(dp.rgvarg+argc-i-1);
1107             if(dp.rgvarg != buf)
1108                 heap_free(dp.rgvarg);
1109             return hres;
1110         }
1111     }
1112
1113     V_VT(&retv) = VT_EMPTY;
1114     clear_ei(ctx);
1115     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1116     if(SUCCEEDED(hres)) {
1117         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, &dp, ret ? &retv : NULL, &ctx->ei.ei,
1118                 &ctx->jscaller->IServiceProvider_iface);
1119         IDispatchEx_Release(dispex);
1120     }else {
1121         UINT err = 0;
1122
1123         if(flags == DISPATCH_CONSTRUCT) {
1124             WARN("IDispatch cannot be constructor\n");
1125             return DISP_E_MEMBERNOTFOUND;
1126         }
1127
1128         TRACE("using IDispatch\n");
1129         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, &dp, ret ? &retv : NULL, &ctx->ei.ei, &err);
1130     }
1131
1132     for(i=0; i<argc; i++)
1133         VariantClear(dp.rgvarg+argc-i-1);
1134     if(dp.rgvarg != buf)
1135         heap_free(dp.rgvarg);
1136     if(FAILED(hres))
1137         return hres;
1138
1139     if(ret) {
1140         hres = variant_to_jsval(&retv, ret);
1141         VariantClear(&retv);
1142     }
1143     return hres;
1144 }
1145
1146 HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv,
1147         jsval_t *r)
1148 {
1149     jsdisp_t *jsdisp;
1150     IDispatchEx *dispex;
1151     VARIANT buf[6], retv;
1152     DISPPARAMS dp;
1153     unsigned i;
1154     HRESULT hres;
1155
1156     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1157     if(jsdisp) {
1158         if(flags & DISPATCH_PROPERTYPUT) {
1159             FIXME("disp_call(propput) on builtin object\n");
1160             return E_FAIL;
1161         }
1162
1163         hres = jsdisp_call_value(jsdisp, jsthis, flags, argc, argv, r);
1164         jsdisp_release(jsdisp);
1165         return hres;
1166     }
1167
1168     if(r && argc)
1169         flags |= DISPATCH_PROPERTYGET;
1170
1171
1172     if(jsthis) {
1173         static DISPID this_id = DISPID_THIS;
1174
1175         dp.cArgs = argc+1;
1176         dp.cNamedArgs = 1;
1177         dp.rgdispidNamedArgs = &this_id;
1178     }else {
1179         dp.cArgs = argc;
1180         dp.cNamedArgs = 0;
1181         dp.rgdispidNamedArgs = NULL;
1182     }
1183
1184     if(dp.cArgs > sizeof(buf)/sizeof(*buf)) {
1185         dp.rgvarg = heap_alloc(dp.cArgs*sizeof(VARIANT));
1186         if(!dp.rgvarg)
1187             return E_OUTOFMEMORY;
1188     }else {
1189         dp.rgvarg = buf;
1190     }
1191
1192     for(i=0; i<argc; i++) {
1193         hres = jsval_to_variant(argv[i], dp.rgvarg+dp.cArgs-i-1);
1194         if(FAILED(hres)) {
1195             while(i--)
1196                 VariantClear(dp.rgvarg+dp.cArgs-i-1);
1197             if(dp.rgvarg != buf)
1198                 heap_free(dp.rgvarg);
1199             return hres;
1200         }
1201     }
1202     if(jsthis) {
1203         V_VT(dp.rgvarg) = VT_DISPATCH;
1204         V_DISPATCH(dp.rgvarg) = jsthis;
1205     }
1206
1207     V_VT(&retv) = VT_EMPTY;
1208     clear_ei(ctx);
1209     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1210     if(SUCCEEDED(hres)) {
1211         hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, ctx->lcid, flags, &dp, r ? &retv : NULL, &ctx->ei.ei,
1212                 &ctx->jscaller->IServiceProvider_iface);
1213         IDispatchEx_Release(dispex);
1214     }else {
1215         UINT err = 0;
1216
1217         if(flags == DISPATCH_CONSTRUCT) {
1218             WARN("IDispatch cannot be constructor\n");
1219             return DISP_E_MEMBERNOTFOUND;
1220         }
1221
1222         TRACE("using IDispatch\n");
1223         hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, ctx->lcid, flags, &dp, r ? &retv : NULL, &ctx->ei.ei, &err);
1224     }
1225
1226     for(i=0; i<argc; i++)
1227         VariantClear(dp.rgvarg+dp.cArgs-i-1);
1228     if(dp.rgvarg != buf)
1229         heap_free(dp.rgvarg);
1230     if(FAILED(hres))
1231         return hres;
1232
1233     if(!r)
1234         return S_OK;
1235
1236     hres = variant_to_jsval(&retv, r);
1237     VariantClear(&retv);
1238     return hres;
1239 }
1240
1241 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, jsval_t val)
1242 {
1243     dispex_prop_t *prop;
1244     HRESULT hres;
1245
1246     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM, &prop);
1247     if(FAILED(hres))
1248         return hres;
1249
1250     return prop_put(obj, prop, val, NULL);
1251 }
1252
1253 HRESULT jsdisp_propput_const(jsdisp_t *obj, const WCHAR *name, jsval_t val)
1254 {
1255     dispex_prop_t *prop;
1256     HRESULT hres;
1257
1258     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM|PROPF_CONST, &prop);
1259     if(FAILED(hres))
1260         return hres;
1261
1262     return jsval_copy(val, &prop->u.val);
1263 }
1264
1265 HRESULT jsdisp_propput_dontenum(jsdisp_t *obj, const WCHAR *name, jsval_t val)
1266 {
1267     dispex_prop_t *prop;
1268     HRESULT hres;
1269
1270     hres = ensure_prop_name(obj, name, FALSE, 0, &prop);
1271     if(FAILED(hres))
1272         return hres;
1273
1274     return jsval_copy(val, &prop->u.val);
1275 }
1276
1277 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, jsval_t val)
1278 {
1279     WCHAR buf[12];
1280
1281     static const WCHAR formatW[] = {'%','d',0};
1282
1283     sprintfW(buf, formatW, idx);
1284     return jsdisp_propput_name(obj, buf, val);
1285 }
1286
1287 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, jsval_t val)
1288 {
1289     jsdisp_t *jsdisp;
1290     HRESULT hres;
1291
1292     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1293     if(jsdisp) {
1294         dispex_prop_t *prop;
1295
1296         prop = get_prop(jsdisp, id);
1297         if(prop)
1298             hres = prop_put(jsdisp, prop, val, NULL);
1299         else
1300             hres = DISP_E_MEMBERNOTFOUND;
1301
1302         jsdisp_release(jsdisp);
1303     }else {
1304         DISPID dispid = DISPID_PROPERTYPUT;
1305         VARIANT var;
1306         DISPPARAMS dp  = {&var, &dispid, 1, 1};
1307         IDispatchEx *dispex;
1308
1309         hres = jsval_to_variant(val, &var);
1310         if(FAILED(hres))
1311             return hres;
1312
1313         clear_ei(ctx);
1314         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1315         if(SUCCEEDED(hres)) {
1316             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ctx->ei.ei,
1317                     &ctx->jscaller->IServiceProvider_iface);
1318             IDispatchEx_Release(dispex);
1319         }else {
1320             ULONG err = 0;
1321
1322             TRACE("using IDispatch\n");
1323             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ctx->ei.ei, &err);
1324         }
1325
1326         VariantClear(&var);
1327     }
1328
1329     return hres;
1330 }
1331
1332 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, jsval_t *val)
1333 {
1334     DISPPARAMS dp = {NULL, NULL, 0, 0};
1335     dispex_prop_t *prop;
1336     HRESULT hres;
1337
1338     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1339     if(FAILED(hres))
1340         return hres;
1341
1342     if(!prop || prop->type==PROP_DELETED) {
1343         *val = jsval_undefined();
1344         return S_OK;
1345     }
1346
1347     return prop_get(obj, prop, &dp, val, NULL);
1348 }
1349
1350 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, jsval_t *r)
1351 {
1352     WCHAR name[12];
1353     DISPPARAMS dp = {NULL, NULL, 0, 0};
1354     dispex_prop_t *prop;
1355     HRESULT hres;
1356
1357     static const WCHAR formatW[] = {'%','d',0};
1358
1359     sprintfW(name, formatW, idx);
1360
1361     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1362     if(FAILED(hres))
1363         return hres;
1364
1365     if(!prop || prop->type==PROP_DELETED) {
1366         *r = jsval_undefined();
1367         return DISP_E_UNKNOWNNAME;
1368     }
1369
1370     return prop_get(obj, prop, &dp, r, NULL);
1371 }
1372
1373 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, jsval_t *val)
1374 {
1375     DISPPARAMS dp  = {NULL,NULL,0,0};
1376     dispex_prop_t *prop;
1377
1378     prop = get_prop(jsdisp, id);
1379     if(!prop)
1380         return DISP_E_MEMBERNOTFOUND;
1381
1382     return prop_get(jsdisp, prop, &dp, val, NULL);
1383 }
1384
1385 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, jsval_t *val)
1386 {
1387     DISPPARAMS dp  = {NULL,NULL,0,0};
1388     IDispatchEx *dispex;
1389     jsdisp_t *jsdisp;
1390     VARIANT var;
1391     HRESULT hres;
1392
1393     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1394     if(jsdisp) {
1395         hres = jsdisp_propget(jsdisp, id, val);
1396         jsdisp_release(jsdisp);
1397         return hres;
1398     }
1399
1400     V_VT(&var) = VT_EMPTY;
1401     clear_ei(ctx);
1402     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1403     if(SUCCEEDED(hres)) {
1404         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, &var, &ctx->ei.ei,
1405                 &ctx->jscaller->IServiceProvider_iface);
1406         IDispatchEx_Release(dispex);
1407     }else {
1408         ULONG err = 0;
1409
1410         TRACE("using IDispatch\n");
1411         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, &var, &ctx->ei.ei, &err);
1412     }
1413     if(FAILED(hres))
1414         return hres;
1415
1416     return variant_to_jsval(&var, val);
1417 }
1418
1419 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1420 {
1421     static const WCHAR formatW[] = {'%','d',0};
1422     WCHAR buf[12];
1423     dispex_prop_t *prop;
1424     HRESULT hres;
1425
1426     sprintfW(buf, formatW, idx);
1427
1428     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1429     if(FAILED(hres) || !prop)
1430         return hres;
1431
1432     return delete_prop(prop);
1433 }
1434
1435 HRESULT jsdisp_is_own_prop(jsdisp_t *obj, const WCHAR *name, BOOL *ret)
1436 {
1437     dispex_prop_t *prop;
1438     HRESULT hres;
1439
1440     hres = find_prop_name(obj, string_hash(name), name, &prop);
1441     if(FAILED(hres))
1442         return hres;
1443
1444     *ret = prop && (prop->type == PROP_JSVAL || prop->type == PROP_BUILTIN);
1445     return S_OK;
1446 }