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 HRESULT set_this(DISPPARAMS *dp, const DISPPARAMS *olddp, IDispatch *jsthis)
 295 {
 296     VARIANTARG *oldargs;
 297     int i;
 298
 299     static DISPID this_id = DISPID_THIS;
 300
 301     *dp = *olddp;
 302
 303     for(i = 0; i < dp->cNamedArgs; i++) {
 304         if(dp->rgdispidNamedArgs[i] == DISPID_THIS)
 305             return S_OK;
 306     }
 307
 308     oldargs = dp->rgvarg;
 309     dp->rgvarg = heap_alloc((dp->cArgs+1) * sizeof(VARIANTARG));
 310     if(!dp->rgvarg)
 311         return E_OUTOFMEMORY;
 312     memcpy(dp->rgvarg+1, oldargs, dp->cArgs*sizeof(VARIANTARG));
 313     V_VT(dp->rgvarg) = VT_DISPATCH;
 314     V_DISPATCH(dp->rgvarg) = jsthis;
 315     dp->cArgs++;
 316
 317     if(dp->cNamedArgs) {
 318         DISPID *old = dp->rgdispidNamedArgs;
 319         dp->rgdispidNamedArgs = heap_alloc((dp->cNamedArgs+1)*sizeof(DISPID));
 320         if(!dp->rgdispidNamedArgs) {
 321             heap_free(dp->rgvarg);
 322             return E_OUTOFMEMORY;
 323         }
 324
 325         memcpy(dp->rgdispidNamedArgs+1, old, dp->cNamedArgs*sizeof(DISPID));
 326         dp->rgdispidNamedArgs[0] = DISPID_THIS;
 327         dp->cNamedArgs++;
 328     }else {
 329         dp->rgdispidNamedArgs = &this_id;
 330         dp->cNamedArgs = 1;
 331     }
 332
 333     return S_OK;
 334 }
 335
 336 static IDispatch *get_this(DISPPARAMS *dp)
 337 {
 338     DWORD i;
 339
 340     for(i=0; i < dp->cNamedArgs; i++) {
 341         if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
 342             if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
 343                 return V_DISPATCH(dp->rgvarg+i);
 344
 345             WARN("This is not VT_DISPATCH\n");
 346             return NULL;
 347         }
 348     }
 349
 350     TRACE("no this passed\n");
 351     return NULL;
 352 }
 353
 354 static HRESULT convert_params(const DISPPARAMS *dp, VARIANT *buf, DISPPARAMS *ret)
 355 {
 356     BOOL need_conversion = FALSE;
 357     const VARIANT *s;
 358     VARIANT *d;
 359     unsigned i;
 360
 361     *ret = *dp;
 362
 363     for(i = 0; i < ret->cArgs && !need_conversion; i++) {
 364         switch(V_VT(get_arg(dp, i))) {
 365         case VT_I2:
 366         case VT_INT:
 367             need_conversion = TRUE;
 368             break;
 369         }
 370     }
 371
 372     if(!need_conversion)
 373         return S_OK;
 374
 375     if(ret->cArgs > 6) {
 376         ret->rgvarg = heap_alloc(ret->cArgs * sizeof(VARIANT));
 377         if(!ret->rgvarg)
 378             return E_OUTOFMEMORY;
 379     }else {
 380         ret->rgvarg = buf;
 381     }
 382
 383     for(i = 0; i < ret->cArgs; i++) {
 384         s = get_arg(dp, i);
 385         d = get_arg(ret, i);
 386         switch(V_VT(s)) {
 387         case VT_I2:
 388             V_VT(d) = VT_I4;
 389             V_I4(d) = V_I2(s);
 390             break;
 391         case VT_INT:
 392             V_VT(d) = VT_I4;
 393             V_I4(d) = V_INT(s);
 394             break;
 395         default:
 396             *d = *s;
 397         }
 398     }
 399
 400     return S_OK;
 401 }
 402
 403 static HRESULT invoke_prop_func(jsdisp_t *This, IDispatch *jsthis, dispex_prop_t *prop, WORD flags,
 404         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 405 {
 406     HRESULT hres;
 407
 408     switch(prop->type) {
 409     case PROP_BUILTIN: {
 410         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 411             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 412             return E_INVALIDARG;
 413         }
 414
 415         if(prop->name || This->builtin_info->class != JSCLASS_FUNCTION) {
 416             vdisp_t vthis;
 417
 418             if(jsthis)
 419                 set_disp(&vthis, jsthis);
 420             else
 421                 set_jsdisp(&vthis, This);
 422             hres = prop->u.p->invoke(This->ctx, &vthis, flags, dp, retv, ei);
 423             vdisp_release(&vthis);
 424         }else {
 425             /* Function object calls are special case */
 426             hres = Function_invoke(This, jsthis, flags, dp, retv, ei);
 427         }
 428         return hres;
 429     }
 430     case PROP_PROTREF:
 431         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref, flags, dp, retv, ei, caller);
 432     case PROP_VARIANT: {
 433         if(V_VT(&prop->u.var) != VT_DISPATCH) {
 434             FIXME("invoke vt %d\n", V_VT(&prop->u.var));
 435             return E_FAIL;
 436         }
 437
 438         TRACE("call %s %p\n", debugstr_w(prop->name), V_DISPATCH(&prop->u.var));
 439
 440         return disp_call_value(This->ctx, V_DISPATCH(&prop->u.var), jsthis, flags, dp, retv, ei);
 441     }
 442     default:
 443         ERR("type %d\n", prop->type);
 444     }
 445
 446     return E_FAIL;
 447 }
 448
 449 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop, DISPPARAMS *dp,
 450         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 451 {
 452     HRESULT hres;
 453
 454     switch(prop->type) {
 455     case PROP_BUILTIN:
 456         if(prop->u.p->flags & PROPF_METHOD) {
 457             jsdisp_t *obj;
 458             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 459                     prop->u.p->flags, NULL, &obj);
 460             if(FAILED(hres))
 461                 break;
 462
 463             prop->type = PROP_VARIANT;
 464             var_set_jsdisp(&prop->u.var, obj);
 465             hres = VariantCopy(retv, &prop->u.var);
 466         }else {
 467             vdisp_t vthis;
 468
 469             set_jsdisp(&vthis, This);
 470             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYGET, dp, retv, ei);
 471             vdisp_release(&vthis);
 472         }
 473         break;
 474     case PROP_PROTREF:
 475         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, dp, retv, ei, caller);
 476         break;
 477     case PROP_VARIANT:
 478         hres = VariantCopy(retv, &prop->u.var);
 479         break;
 480     default:
 481         ERR("type %d\n", prop->type);
 482         return E_FAIL;
 483     }
 484
 485     if(FAILED(hres)) {
 486         TRACE("fail %08x\n", hres);
 487         return hres;
 488     }
 489
 490     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 491     return hres;
 492 }
 493
 494 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, VARIANT *val,
 495         jsexcept_t *ei, IServiceProvider *caller)
 496 {
 497     HRESULT hres;
 498
 499     if(prop->flags & PROPF_CONST)
 500         return S_OK;
 501
 502     switch(prop->type) {
 503     case PROP_BUILTIN:
 504         if(!(prop->flags & PROPF_METHOD)) {
 505             DISPPARAMS dp = {val, NULL, 1, 0};
 506             vdisp_t vthis;
 507
 508             set_jsdisp(&vthis, This);
 509             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYPUT, &dp, NULL, ei);
 510             vdisp_release(&vthis);
 511             return hres;
 512         }
 513     case PROP_PROTREF:
 514         prop->type = PROP_VARIANT;
 515         prop->flags = PROPF_ENUM;
 516         V_VT(&prop->u.var) = VT_EMPTY;
 517         break;
 518     case PROP_VARIANT:
 519         VariantClear(&prop->u.var);
 520         break;
 521     default:
 522         ERR("type %d\n", prop->type);
 523         return E_FAIL;
 524     }
 525
 526     hres = VariantCopy(&prop->u.var, val);
 527     if(FAILED(hres))
 528         return hres;
 529
 530     if(This->builtin_info->on_put)
 531         This->builtin_info->on_put(This, prop->name);
 532
 533     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(val));
 534     return S_OK;
 535 }
 536
 537 static HRESULT fill_protrefs(jsdisp_t *This)
 538 {
 539     dispex_prop_t *iter, *prop;
 540     HRESULT hres;
 541
 542     if(!This->prototype)
 543         return S_OK;
 544
 545     fill_protrefs(This->prototype);
 546
 547     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 548         if(!iter->name)
 549             continue;
 550         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 551         if(FAILED(hres))
 552             return hres;
 553         if(!prop || prop->type==PROP_DELETED) {
 554             if(prop) {
 555                 prop->type = PROP_PROTREF;
 556                 prop->flags = 0;
 557                 prop->u.ref = iter - This->prototype->props;
 558             }else {
 559                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 560                 if(!prop)
 561                     return E_OUTOFMEMORY;
 562             }
 563         }
 564     }
 565
 566     return S_OK;
 567 }
 568
 569 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 570 {
 571     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 572 }
 573
 574 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 575 {
 576     jsdisp_t *This = impl_from_IDispatchEx(iface);
 577
 578     if(IsEqualGUID(&IID_IUnknown, riid)) {
 579         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 580         *ppv = &This->IDispatchEx_iface;
 581     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 582         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 583         *ppv = &This->IDispatchEx_iface;
 584     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 585         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 586         *ppv = &This->IDispatchEx_iface;
 587     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 588         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 589         jsdisp_addref(This);
 590         *ppv = This;
 591         return S_OK;
 592     }else {
 593         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 594         *ppv = NULL;
 595         return E_NOINTERFACE;
 596     }
 597
 598     IUnknown_AddRef((IUnknown*)*ppv);
 599     return S_OK;
 600 }
 601
 602 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 603 {
 604     jsdisp_t *This = impl_from_IDispatchEx(iface);
 605     LONG ref = InterlockedIncrement(&This->ref);
 606
 607     TRACE("(%p) ref=%d\n", This, ref);
 608
 609     return ref;
 610 }
 611
 612 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 613 {
 614     jsdisp_t *This = impl_from_IDispatchEx(iface);
 615     LONG ref = InterlockedDecrement(&This->ref);
 616
 617     TRACE("(%p) ref=%d\n", This, ref);
 618
 619     if(!ref) {
 620         dispex_prop_t *prop;
 621
 622         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 623             if(prop->type == PROP_VARIANT)
 624                 VariantClear(&prop->u.var);
 625             heap_free(prop->name);
 626         }
 627         heap_free(This->props);
 628         script_release(This->ctx);
 629         if(This->prototype)
 630             jsdisp_release(This->prototype);
 631
 632         if(This->builtin_info->destructor)
 633             This->builtin_info->destructor(This);
 634         else
 635             heap_free(This);
 636     }
 637
 638     return ref;
 639 }
 640
 641 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 642 {
 643     jsdisp_t *This = impl_from_IDispatchEx(iface);
 644
 645     TRACE("(%p)->(%p)\n", This, pctinfo);
 646
 647     *pctinfo = 1;
 648     return S_OK;
 649 }
 650
 651 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 652                                               ITypeInfo **ppTInfo)
 653 {
 654     jsdisp_t *This = impl_from_IDispatchEx(iface);
 655     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 656     return E_NOTIMPL;
 657 }
 658
 659 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 660                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 661                                                 DISPID *rgDispId)
 662 {
 663     jsdisp_t *This = impl_from_IDispatchEx(iface);
 664     UINT i;
 665     HRESULT hres;
 666
 667     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 668           lcid, rgDispId);
 669
 670     for(i=0; i < cNames; i++) {
 671         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 672         if(FAILED(hres))
 673             return hres;
 674     }
 675
 676     return S_OK;
 677 }
 678
 679 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 680                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 681                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 682 {
 683     jsdisp_t *This = impl_from_IDispatchEx(iface);
 684
 685     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 686           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 687
 688     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 689             pDispParams, pVarResult, pExcepInfo, NULL);
 690 }
 691
 692 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 693 {
 694     jsdisp_t *This = impl_from_IDispatchEx(iface);
 695
 696     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 697
 698     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 699         FIXME("Unsupported grfdex %x\n", grfdex);
 700         return E_NOTIMPL;
 701     }
 702
 703     return jsdisp_get_id(This, bstrName, grfdex, pid);
 704 }
 705
 706 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 707         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 708 {
 709     jsdisp_t *This = impl_from_IDispatchEx(iface);
 710     dispex_prop_t *prop;
 711     jsexcept_t jsexcept;
 712     HRESULT hres;
 713
 714     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 715
 716     if(pvarRes)
 717         V_VT(pvarRes) = VT_EMPTY;
 718
 719     prop = get_prop(This, id);
 720     if(!prop || prop->type == PROP_DELETED) {
 721         TRACE("invalid id\n");
 722         return DISP_E_MEMBERNOTFOUND;
 723     }
 724
 725     memset(&jsexcept, 0, sizeof(jsexcept));
 726
 727     switch(wFlags) {
 728     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 729         wFlags = DISPATCH_METHOD;
 730         /* fall through */
 731     case DISPATCH_METHOD:
 732     case DISPATCH_CONSTRUCT: {
 733         DISPPARAMS params;
 734         VARIANT buf[6];
 735
 736         hres = convert_params(pdp, buf, &params);
 737         if(FAILED(hres))
 738             return hres;
 739
 740         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, &params, pvarRes, &jsexcept, pspCaller);
 741         if(params.rgvarg != buf && params.rgvarg != pdp->rgvarg)
 742             heap_free(params.rgvarg);
 743         break;
 744     }
 745     case DISPATCH_PROPERTYGET:
 746         hres = prop_get(This, prop, pdp, pvarRes, &jsexcept, pspCaller);
 747         break;
 748     case DISPATCH_PROPERTYPUT: {
 749         DWORD i;
 750
 751         for(i=0; i < pdp->cNamedArgs; i++) {
 752             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 753                 break;
 754         }
 755
 756         if(i == pdp->cNamedArgs) {
 757             TRACE("no value to set\n");
 758             return DISP_E_PARAMNOTOPTIONAL;
 759         }
 760
 761         hres = prop_put(This, prop, pdp->rgvarg+i, &jsexcept, pspCaller);
 762         break;
 763     }
 764     default:
 765         FIXME("Unimplemented flags %x\n", wFlags);
 766         return E_INVALIDARG;
 767     }
 768
 769     if(pei)
 770         *pei = jsexcept.ei;
 771
 772     return hres;
 773 }
 774
 775 static HRESULT delete_prop(dispex_prop_t *prop)
 776 {
 777     if(prop->type == PROP_VARIANT) {
 778         VariantClear(&prop->u.var);
 779         prop->type = PROP_DELETED;
 780     }
 781     return S_OK;
 782 }
 783
 784 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 785 {
 786     jsdisp_t *This = impl_from_IDispatchEx(iface);
 787     dispex_prop_t *prop;
 788     HRESULT hres;
 789
 790     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 791
 792     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 793         FIXME("Unsupported grfdex %x\n", grfdex);
 794
 795     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 796     if(FAILED(hres))
 797         return hres;
 798     if(!prop) {
 799         TRACE("not found\n");
 800         return S_OK;
 801     }
 802
 803     return delete_prop(prop);
 804 }
 805
 806 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 807 {
 808     jsdisp_t *This = impl_from_IDispatchEx(iface);
 809     dispex_prop_t *prop;
 810
 811     TRACE("(%p)->(%x)\n", This, id);
 812
 813     prop = get_prop(This, id);
 814     if(!prop) {
 815         WARN("invalid id\n");
 816         return DISP_E_MEMBERNOTFOUND;
 817     }
 818
 819     return delete_prop(prop);
 820 }
 821
 822 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 823 {
 824     jsdisp_t *This = impl_from_IDispatchEx(iface);
 825     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 826     return E_NOTIMPL;
 827 }
 828
 829 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 830 {
 831     jsdisp_t *This = impl_from_IDispatchEx(iface);
 832     dispex_prop_t *prop;
 833
 834     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 835
 836     prop = get_prop(This, id);
 837     if(!prop || !prop->name || prop->type == PROP_DELETED)
 838         return DISP_E_MEMBERNOTFOUND;
 839
 840     *pbstrName = SysAllocString(prop->name);
 841     if(!*pbstrName)
 842         return E_OUTOFMEMORY;
 843
 844     return S_OK;
 845 }
 846
 847 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 848 {
 849     jsdisp_t *This = impl_from_IDispatchEx(iface);
 850     dispex_prop_t *iter;
 851     HRESULT hres;
 852
 853     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 854
 855     if(id == DISPID_STARTENUM) {
 856         hres = fill_protrefs(This);
 857         if(FAILED(hres))
 858             return hres;
 859     }
 860
 861     if(id+1>=0 && id+1<This->prop_cnt) {
 862         iter = &This->props[id+1];
 863     }else {
 864         *pid = DISPID_STARTENUM;
 865         return S_FALSE;
 866     }
 867
 868     while(iter < This->props + This->prop_cnt) {
 869         if(iter->name && (get_flags(This, iter) & PROPF_ENUM) && iter->type!=PROP_DELETED) {
 870             *pid = prop_to_id(This, iter);
 871             return S_OK;
 872         }
 873         iter++;
 874     }
 875
 876     *pid = DISPID_STARTENUM;
 877     return S_FALSE;
 878 }
 879
 880 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 881 {
 882     jsdisp_t *This = impl_from_IDispatchEx(iface);
 883     FIXME("(%p)->(%p)\n", This, ppunk);
 884     return E_NOTIMPL;
 885 }
 886
 887 static IDispatchExVtbl DispatchExVtbl = {
 888     DispatchEx_QueryInterface,
 889     DispatchEx_AddRef,
 890     DispatchEx_Release,
 891     DispatchEx_GetTypeInfoCount,
 892     DispatchEx_GetTypeInfo,
 893     DispatchEx_GetIDsOfNames,
 894     DispatchEx_Invoke,
 895     DispatchEx_GetDispID,
 896     DispatchEx_InvokeEx,
 897     DispatchEx_DeleteMemberByName,
 898     DispatchEx_DeleteMemberByDispID,
 899     DispatchEx_GetMemberProperties,
 900     DispatchEx_GetMemberName,
 901     DispatchEx_GetNextDispID,
 902     DispatchEx_GetNameSpaceParent
 903 };
 904
 905 jsdisp_t *as_jsdisp(IDispatch *disp)
 906 {
 907     assert(disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl);
 908     return impl_from_IDispatchEx((IDispatchEx*)disp);
 909 }
 910
 911 jsdisp_t *to_jsdisp(IDispatch *disp)
 912 {
 913     return disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl ? impl_from_IDispatchEx((IDispatchEx*)disp) : NULL;
 914 }
 915
 916 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 917 {
 918     TRACE("%p (%p)\n", dispex, prototype);
 919
 920     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 921     dispex->ref = 1;
 922     dispex->builtin_info = builtin_info;
 923
 924     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 925     if(!dispex->props)
 926         return E_OUTOFMEMORY;
 927
 928     dispex->prototype = prototype;
 929     if(prototype)
 930         jsdisp_addref(prototype);
 931
 932     dispex->prop_cnt = 1;
 933     if(builtin_info->value_prop.invoke) {
 934         dispex->props[0].type = PROP_BUILTIN;
 935         dispex->props[0].u.p = &builtin_info->value_prop;
 936     }else {
 937         dispex->props[0].type = PROP_DELETED;
 938     }
 939
 940     script_addref(ctx);
 941     dispex->ctx = ctx;
 942
 943     return S_OK;
 944 }
 945
 946 static const builtin_info_t dispex_info = {
 947     JSCLASS_NONE,
 948     {NULL, NULL, 0},
 949     0, NULL,
 950     NULL,
 951     NULL
 952 };
 953
 954 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 955 {
 956     jsdisp_t *ret;
 957     HRESULT hres;
 958
 959     ret = heap_alloc_zero(sizeof(jsdisp_t));
 960     if(!ret)
 961         return E_OUTOFMEMORY;
 962
 963     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 964     if(FAILED(hres))
 965         return hres;
 966
 967     *dispex = ret;
 968     return S_OK;
 969 }
 970
 971 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
 972 {
 973     jsdisp_t *prot = NULL;
 974     dispex_prop_t *prop;
 975     HRESULT hres;
 976
 977     static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
 978     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 979
 980     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
 981     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
 982         jsexcept_t jsexcept;
 983         VARIANT var;
 984
 985         V_VT(&var) = VT_EMPTY;
 986         memset(&jsexcept, 0, sizeof(jsexcept));
 987         hres = prop_get(constr, prop, NULL, &var, &jsexcept, NULL/*FIXME*/);
 988         if(FAILED(hres)) {
 989             ERR("Could not get prototype\n");
 990             return hres;
 991         }
 992
 993         if(V_VT(&var) == VT_DISPATCH)
 994             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 995         VariantClear(&var);
 996     }
 997
 998     hres = init_dispex(dispex, ctx, builtin_info, prot);
 999
1000     if(prot)
1001         jsdisp_release(prot);
1002     if(FAILED(hres))
1003         return hres;
1004
1005     hres = ensure_prop_name(dispex, constructorW, FALSE, 0, &prop);
1006     if(SUCCEEDED(hres)) {
1007         jsexcept_t jsexcept;
1008         VARIANT var;
1009
1010         var_set_jsdisp(&var, constr);
1011         memset(&jsexcept, 0, sizeof(jsexcept));
1012         hres = prop_put(dispex, prop, &var, &jsexcept, NULL/*FIXME*/);
1013     }
1014     if(FAILED(hres))
1015         jsdisp_release(dispex);
1016
1017     return hres;
1018 }
1019
1020 jsdisp_t *iface_to_jsdisp(IUnknown *iface)
1021 {
1022     jsdisp_t *ret;
1023     HRESULT hres;
1024
1025     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
1026     if(FAILED(hres))
1027         return NULL;
1028
1029     return ret;
1030 }
1031
1032 static void ensure_retval_type(VARIANT *v)
1033 {
1034     switch(V_VT(v)) {
1035     case VT_I2:
1036         V_VT(v) = VT_I4;
1037         V_I4(v) = V_I2(v);
1038         break;
1039     case VT_INT:
1040         V_VT(v) = VT_I4;
1041         V_I4(v) = V_INT(v);
1042     }
1043 }
1044
1045 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
1046 {
1047     dispex_prop_t *prop;
1048     HRESULT hres;
1049
1050     if(flags & fdexNameEnsure)
1051         hres = ensure_prop_name(jsdisp, name, TRUE, PROPF_ENUM, &prop);
1052     else
1053         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
1054     if(FAILED(hres))
1055         return hres;
1056
1057     if(prop && prop->type!=PROP_DELETED) {
1058         *id = prop_to_id(jsdisp, prop);
1059         return S_OK;
1060     }
1061
1062     TRACE("not found %s\n", debugstr_w(name));
1063     return DISP_E_UNKNOWNNAME;
1064 }
1065
1066 HRESULT jsdisp_call_value(jsdisp_t *jsfunc, IDispatch *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1067 {
1068     HRESULT hres;
1069
1070     TRACE("args %p\n", dp->rgvarg);
1071
1072     if(is_class(jsfunc, JSCLASS_FUNCTION)) {
1073         hres = Function_invoke(jsfunc, jsthis, flags, dp, retv, ei);
1074     }else {
1075         vdisp_t vdisp;
1076
1077         set_disp(&vdisp, jsthis);
1078         hres = jsfunc->builtin_info->value_prop.invoke(jsfunc->ctx, &vdisp, flags, dp, retv, ei);
1079         vdisp_release(&vdisp);
1080     }
1081     return hres;
1082 }
1083
1084 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1085 {
1086     dispex_prop_t *prop;
1087
1088     memset(ei, 0, sizeof(*ei));
1089     if(retv)
1090         V_VT(retv) = VT_EMPTY;
1091
1092     prop = get_prop(disp, id);
1093     if(!prop)
1094         return DISP_E_MEMBERNOTFOUND;
1095
1096     return invoke_prop_func(disp, to_disp(disp), prop, flags, dp, retv, ei, NULL);
1097 }
1098
1099 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, DISPPARAMS *dp, VARIANT *retv,
1100         jsexcept_t *ei)
1101 {
1102     dispex_prop_t *prop;
1103     HRESULT hres;
1104
1105     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1106     if(FAILED(hres))
1107         return hres;
1108
1109     memset(ei, 0, sizeof(*ei));
1110     if(retv)
1111         V_VT(retv) = VT_EMPTY;
1112
1113     return invoke_prop_func(disp, to_disp(disp), prop, flags, dp, retv, ei, NULL);
1114 }
1115
1116 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1117 {
1118     jsdisp_t *jsdisp;
1119     IDispatchEx *dispex;
1120     HRESULT hres;
1121
1122     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1123     if(jsdisp) {
1124         if(flags & DISPATCH_PROPERTYPUT) {
1125             FIXME("disp_call(propput) on builtin object\n");
1126             return E_FAIL;
1127         }
1128
1129         hres = jsdisp_call(jsdisp, id, flags, dp, retv, ei);
1130         jsdisp_release(jsdisp);
1131         return hres;
1132     }
1133
1134     memset(ei, 0, sizeof(*ei));
1135     if(retv && arg_cnt(dp))
1136         flags |= DISPATCH_PROPERTYGET;
1137
1138     if(retv)
1139         V_VT(retv) = VT_EMPTY;
1140     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1141     if(SUCCEEDED(hres)) {
1142         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, dp, retv, &ei->ei, &ctx->jscaller->IServiceProvider_iface);
1143         IDispatchEx_Release(dispex);
1144     }else {
1145         UINT err = 0;
1146
1147         if(flags == DISPATCH_CONSTRUCT) {
1148             WARN("IDispatch cannot be constructor\n");
1149             return DISP_E_MEMBERNOTFOUND;
1150         }
1151
1152         TRACE("using IDispatch\n");
1153         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, dp, retv, &ei->ei, &err);
1154     }
1155
1156     if(FAILED(hres))
1157         return hres;
1158
1159     if(retv)
1160         ensure_retval_type(retv);
1161     return S_OK;
1162 }
1163
1164 HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, IDispatch *jsthis, WORD flags, DISPPARAMS *dp,
1165         VARIANT *retv, jsexcept_t *ei)
1166 {
1167     DISPPARAMS params;
1168     jsdisp_t *jsdisp;
1169     IDispatchEx *dispex;
1170     HRESULT hres;
1171
1172     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1173     if(jsdisp) {
1174         if(flags & DISPATCH_PROPERTYPUT) {
1175             FIXME("disp_call(propput) on builtin object\n");
1176             return E_FAIL;
1177         }
1178
1179         hres = jsdisp_call_value(jsdisp, jsthis, flags, dp, retv, ei);
1180         jsdisp_release(jsdisp);
1181         return hres;
1182     }
1183
1184     memset(ei, 0, sizeof(*ei));
1185     if(retv && arg_cnt(dp))
1186         flags |= DISPATCH_PROPERTYGET;
1187
1188     if(jsthis) {
1189         hres = set_this(&params, dp, jsthis);
1190         if(FAILED(hres))
1191             return hres;
1192     }else {
1193         params = *dp;
1194     }
1195
1196     if(retv)
1197         V_VT(retv) = VT_EMPTY;
1198     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1199     if(SUCCEEDED(hres)) {
1200         hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, ctx->lcid, flags, &params, retv, &ei->ei,
1201                 &ctx->jscaller->IServiceProvider_iface);
1202         IDispatchEx_Release(dispex);
1203     }else {
1204         UINT err = 0;
1205
1206         if(flags == DISPATCH_CONSTRUCT) {
1207             WARN("IDispatch cannot be constructor\n");
1208             return DISP_E_MEMBERNOTFOUND;
1209         }
1210
1211         TRACE("using IDispatch\n");
1212         hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, ctx->lcid, flags, &params, retv, &ei->ei, &err);
1213     }
1214
1215     if(params.rgvarg != dp->rgvarg) {
1216         heap_free(params.rgvarg);
1217         if(params.cNamedArgs > 1)
1218             heap_free(params.rgdispidNamedArgs);
1219     }
1220
1221     if(FAILED(hres))
1222         return hres;
1223
1224     if(retv)
1225         ensure_retval_type(retv);
1226     return S_OK;
1227 }
1228
1229 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, VARIANT *val, jsexcept_t *ei)
1230 {
1231     dispex_prop_t *prop;
1232     HRESULT hres;
1233
1234     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM, &prop);
1235     if(FAILED(hres))
1236         return hres;
1237
1238     return prop_put(obj, prop, val, ei, NULL);
1239 }
1240
1241 HRESULT jsdisp_propput_const(jsdisp_t *obj, const WCHAR *name, VARIANT *val)
1242 {
1243     dispex_prop_t *prop;
1244     HRESULT hres;
1245
1246     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM|PROPF_CONST, &prop);
1247     if(FAILED(hres))
1248         return hres;
1249
1250     return VariantCopy(&prop->u.var, val);
1251 }
1252
1253 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, VARIANT *val, jsexcept_t *ei)
1254 {
1255     WCHAR buf[12];
1256
1257     static const WCHAR formatW[] = {'%','d',0};
1258
1259     sprintfW(buf, formatW, idx);
1260     return jsdisp_propput_name(obj, buf, val, ei);
1261 }
1262
1263 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1264 {
1265     jsdisp_t *jsdisp;
1266     HRESULT hres;
1267
1268     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1269     if(jsdisp) {
1270         dispex_prop_t *prop;
1271
1272         prop = get_prop(jsdisp, id);
1273         if(prop)
1274             hres = prop_put(jsdisp, prop, val, ei, NULL);
1275         else
1276             hres = DISP_E_MEMBERNOTFOUND;
1277
1278         jsdisp_release(jsdisp);
1279     }else {
1280         DISPID dispid = DISPID_PROPERTYPUT;
1281         DISPPARAMS dp  = {val, &dispid, 1, 1};
1282         IDispatchEx *dispex;
1283
1284         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1285         if(SUCCEEDED(hres)) {
1286             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei,
1287                     &ctx->jscaller->IServiceProvider_iface);
1288             IDispatchEx_Release(dispex);
1289         }else {
1290             ULONG err = 0;
1291
1292             TRACE("using IDispatch\n");
1293             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, &err);
1294         }
1295     }
1296
1297     return hres;
1298 }
1299
1300 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, VARIANT *var, jsexcept_t *ei)
1301 {
1302     DISPPARAMS dp = {NULL, NULL, 0, 0};
1303     dispex_prop_t *prop;
1304     HRESULT hres;
1305
1306     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1307     if(FAILED(hres))
1308         return hres;
1309
1310     V_VT(var) = VT_EMPTY;
1311     if(!prop || prop->type==PROP_DELETED)
1312         return S_OK;
1313
1314     return prop_get(obj, prop, &dp, var, ei, NULL);
1315 }
1316
1317 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, VARIANT *var, jsexcept_t *ei)
1318 {
1319     WCHAR name[12];
1320     DISPPARAMS dp = {NULL, NULL, 0, 0};
1321     dispex_prop_t *prop;
1322     HRESULT hres;
1323
1324     static const WCHAR formatW[] = {'%','d',0};
1325
1326     sprintfW(name, formatW, idx);
1327
1328     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1329     if(FAILED(hres))
1330         return hres;
1331
1332     V_VT(var) = VT_EMPTY;
1333     if(!prop || prop->type==PROP_DELETED)
1334         return DISP_E_UNKNOWNNAME;
1335
1336     return prop_get(obj, prop, &dp, var, ei, NULL);
1337 }
1338
1339 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, VARIANT *val, jsexcept_t *ei)
1340 {
1341     DISPPARAMS dp  = {NULL,NULL,0,0};
1342     dispex_prop_t *prop;
1343
1344     prop = get_prop(jsdisp, id);
1345     if(!prop)
1346         return DISP_E_MEMBERNOTFOUND;
1347
1348     V_VT(val) = VT_EMPTY;
1349     return prop_get(jsdisp, prop, &dp, val, ei, NULL);
1350 }
1351
1352 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1353 {
1354     DISPPARAMS dp  = {NULL,NULL,0,0};
1355     IDispatchEx *dispex;
1356     jsdisp_t *jsdisp;
1357     HRESULT hres;
1358
1359     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1360     if(jsdisp) {
1361         hres = jsdisp_propget(jsdisp, id, val, ei);
1362         jsdisp_release(jsdisp);
1363         return hres;
1364     }
1365
1366     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1367     if(SUCCEEDED(hres)) {
1368         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei,
1369                 &ctx->jscaller->IServiceProvider_iface);
1370         IDispatchEx_Release(dispex);
1371     }else {
1372         ULONG err = 0;
1373
1374         TRACE("using IDispatch\n");
1375         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
1376     }
1377     if(FAILED(hres))
1378         return hres;
1379
1380     ensure_retval_type(val);
1381     return S_OK;
1382 }
1383
1384 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1385 {
1386     static const WCHAR formatW[] = {'%','d',0};
1387     WCHAR buf[12];
1388     dispex_prop_t *prop;
1389     HRESULT hres;
1390
1391     sprintfW(buf, formatW, idx);
1392
1393     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1394     if(FAILED(hres) || !prop)
1395         return hres;
1396
1397     return delete_prop(prop);
1398 }
1399
1400 VARIANT_BOOL jsdisp_is_own_prop(jsdisp_t *obj, BSTR name)
1401 {
1402     dispex_prop_t *prop;
1403     HRESULT hres;
1404
1405     hres = find_prop_name(obj, string_hash(name), name, &prop);
1406     if(FAILED(hres))
1407         return VARIANT_FALSE;
1408     else if(!prop)
1409         return VARIANT_FALSE;
1410
1411     return prop->type==PROP_VARIANT ? VARIANT_TRUE : VARIANT_FALSE;
1412 }