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->cArgs = dp->cArgs - dp->cNamedArgs;
 362     ret->cNamedArgs = 0;
 363
 364     for(i = 0; i < ret->cArgs && !need_conversion; i++) {
 365         switch(V_VT(get_arg(dp, i))) {
 366         case VT_I2:
 367         case VT_INT:
 368             need_conversion = TRUE;
 369             break;
 370         }
 371     }
 372
 373     if(!need_conversion) {
 374         ret->rgvarg = dp->rgvarg + dp->cNamedArgs;
 375         return S_OK;
 376     }
 377
 378     if(ret->cArgs > 6) {
 379         ret->rgvarg = heap_alloc(ret->cArgs * sizeof(VARIANT));
 380         if(!ret->rgvarg)
 381             return E_OUTOFMEMORY;
 382     }else {
 383         ret->rgvarg = buf;
 384     }
 385
 386     for(i = 0; i < ret->cArgs; i++) {
 387         s = get_arg(dp, i);
 388         d = get_arg(ret, i);
 389         switch(V_VT(s)) {
 390         case VT_I2:
 391             V_VT(d) = VT_I4;
 392             V_I4(d) = V_I2(s);
 393             break;
 394         case VT_INT:
 395             V_VT(d) = VT_I4;
 396             V_I4(d) = V_INT(s);
 397             break;
 398         default:
 399             *d = *s;
 400         }
 401     }
 402
 403     return S_OK;
 404 }
 405
 406 static HRESULT invoke_prop_func(jsdisp_t *This, IDispatch *jsthis, dispex_prop_t *prop, WORD flags,
 407         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 408 {
 409     HRESULT hres;
 410
 411     switch(prop->type) {
 412     case PROP_BUILTIN: {
 413         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 414             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 415             return E_INVALIDARG;
 416         }
 417
 418         if(prop->name || This->builtin_info->class != JSCLASS_FUNCTION) {
 419             vdisp_t vthis;
 420
 421             if(jsthis)
 422                 set_disp(&vthis, jsthis);
 423             else
 424                 set_jsdisp(&vthis, This);
 425             hres = prop->u.p->invoke(This->ctx, &vthis, flags, dp, retv, ei);
 426             vdisp_release(&vthis);
 427         }else {
 428             /* Function object calls are special case */
 429             hres = Function_invoke(This, jsthis, flags, dp, retv, ei);
 430         }
 431         return hres;
 432     }
 433     case PROP_PROTREF:
 434         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref, flags, dp, retv, ei, caller);
 435     case PROP_VARIANT: {
 436         if(V_VT(&prop->u.var) != VT_DISPATCH) {
 437             FIXME("invoke vt %d\n", V_VT(&prop->u.var));
 438             return E_FAIL;
 439         }
 440
 441         TRACE("call %s %p\n", debugstr_w(prop->name), V_DISPATCH(&prop->u.var));
 442
 443         return disp_call_value(This->ctx, V_DISPATCH(&prop->u.var), jsthis, flags, dp, retv, ei);
 444     }
 445     default:
 446         ERR("type %d\n", prop->type);
 447     }
 448
 449     return E_FAIL;
 450 }
 451
 452 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop, DISPPARAMS *dp,
 453         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 454 {
 455     HRESULT hres;
 456
 457     switch(prop->type) {
 458     case PROP_BUILTIN:
 459         if(prop->u.p->flags & PROPF_METHOD) {
 460             jsdisp_t *obj;
 461             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 462                     prop->u.p->flags, NULL, &obj);
 463             if(FAILED(hres))
 464                 break;
 465
 466             prop->type = PROP_VARIANT;
 467             var_set_jsdisp(&prop->u.var, obj);
 468             hres = VariantCopy(retv, &prop->u.var);
 469         }else {
 470             vdisp_t vthis;
 471
 472             set_jsdisp(&vthis, This);
 473             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYGET, dp, retv, ei);
 474             vdisp_release(&vthis);
 475         }
 476         break;
 477     case PROP_PROTREF:
 478         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, dp, retv, ei, caller);
 479         break;
 480     case PROP_VARIANT:
 481         hres = VariantCopy(retv, &prop->u.var);
 482         break;
 483     default:
 484         ERR("type %d\n", prop->type);
 485         return E_FAIL;
 486     }
 487
 488     if(FAILED(hres)) {
 489         TRACE("fail %08x\n", hres);
 490         return hres;
 491     }
 492
 493     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 494     return hres;
 495 }
 496
 497 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, VARIANT *val,
 498         jsexcept_t *ei, IServiceProvider *caller)
 499 {
 500     HRESULT hres;
 501
 502     if(prop->flags & PROPF_CONST)
 503         return S_OK;
 504
 505     switch(prop->type) {
 506     case PROP_BUILTIN:
 507         if(!(prop->flags & PROPF_METHOD)) {
 508             DISPPARAMS dp = {val, NULL, 1, 0};
 509             vdisp_t vthis;
 510
 511             set_jsdisp(&vthis, This);
 512             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYPUT, &dp, NULL, ei);
 513             vdisp_release(&vthis);
 514             return hres;
 515         }
 516     case PROP_PROTREF:
 517         prop->type = PROP_VARIANT;
 518         prop->flags = PROPF_ENUM;
 519         V_VT(&prop->u.var) = VT_EMPTY;
 520         break;
 521     case PROP_VARIANT:
 522         VariantClear(&prop->u.var);
 523         break;
 524     default:
 525         ERR("type %d\n", prop->type);
 526         return E_FAIL;
 527     }
 528
 529     hres = VariantCopy(&prop->u.var, val);
 530     if(FAILED(hres))
 531         return hres;
 532
 533     if(This->builtin_info->on_put)
 534         This->builtin_info->on_put(This, prop->name);
 535
 536     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(val));
 537     return S_OK;
 538 }
 539
 540 static HRESULT fill_protrefs(jsdisp_t *This)
 541 {
 542     dispex_prop_t *iter, *prop;
 543     HRESULT hres;
 544
 545     if(!This->prototype)
 546         return S_OK;
 547
 548     fill_protrefs(This->prototype);
 549
 550     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 551         if(!iter->name)
 552             continue;
 553         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 554         if(FAILED(hres))
 555             return hres;
 556         if(!prop || prop->type==PROP_DELETED) {
 557             if(prop) {
 558                 prop->type = PROP_PROTREF;
 559                 prop->flags = 0;
 560                 prop->u.ref = iter - This->prototype->props;
 561             }else {
 562                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 563                 if(!prop)
 564                     return E_OUTOFMEMORY;
 565             }
 566         }
 567     }
 568
 569     return S_OK;
 570 }
 571
 572 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 573 {
 574     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 575 }
 576
 577 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 578 {
 579     jsdisp_t *This = impl_from_IDispatchEx(iface);
 580
 581     if(IsEqualGUID(&IID_IUnknown, riid)) {
 582         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 583         *ppv = &This->IDispatchEx_iface;
 584     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 585         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 586         *ppv = &This->IDispatchEx_iface;
 587     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 588         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 589         *ppv = &This->IDispatchEx_iface;
 590     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 591         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 592         jsdisp_addref(This);
 593         *ppv = This;
 594         return S_OK;
 595     }else {
 596         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 597         *ppv = NULL;
 598         return E_NOINTERFACE;
 599     }
 600
 601     IUnknown_AddRef((IUnknown*)*ppv);
 602     return S_OK;
 603 }
 604
 605 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 606 {
 607     jsdisp_t *This = impl_from_IDispatchEx(iface);
 608     LONG ref = InterlockedIncrement(&This->ref);
 609
 610     TRACE("(%p) ref=%d\n", This, ref);
 611
 612     return ref;
 613 }
 614
 615 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 616 {
 617     jsdisp_t *This = impl_from_IDispatchEx(iface);
 618     LONG ref = InterlockedDecrement(&This->ref);
 619
 620     TRACE("(%p) ref=%d\n", This, ref);
 621
 622     if(!ref) {
 623         dispex_prop_t *prop;
 624
 625         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 626             if(prop->type == PROP_VARIANT)
 627                 VariantClear(&prop->u.var);
 628             heap_free(prop->name);
 629         }
 630         heap_free(This->props);
 631         script_release(This->ctx);
 632         if(This->prototype)
 633             jsdisp_release(This->prototype);
 634
 635         if(This->builtin_info->destructor)
 636             This->builtin_info->destructor(This);
 637         else
 638             heap_free(This);
 639     }
 640
 641     return ref;
 642 }
 643
 644 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 645 {
 646     jsdisp_t *This = impl_from_IDispatchEx(iface);
 647
 648     TRACE("(%p)->(%p)\n", This, pctinfo);
 649
 650     *pctinfo = 1;
 651     return S_OK;
 652 }
 653
 654 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 655                                               ITypeInfo **ppTInfo)
 656 {
 657     jsdisp_t *This = impl_from_IDispatchEx(iface);
 658     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 659     return E_NOTIMPL;
 660 }
 661
 662 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 663                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 664                                                 DISPID *rgDispId)
 665 {
 666     jsdisp_t *This = impl_from_IDispatchEx(iface);
 667     UINT i;
 668     HRESULT hres;
 669
 670     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 671           lcid, rgDispId);
 672
 673     for(i=0; i < cNames; i++) {
 674         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 675         if(FAILED(hres))
 676             return hres;
 677     }
 678
 679     return S_OK;
 680 }
 681
 682 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 683                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 684                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 685 {
 686     jsdisp_t *This = impl_from_IDispatchEx(iface);
 687
 688     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 689           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 690
 691     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 692             pDispParams, pVarResult, pExcepInfo, NULL);
 693 }
 694
 695 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 696 {
 697     jsdisp_t *This = impl_from_IDispatchEx(iface);
 698
 699     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 700
 701     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 702         FIXME("Unsupported grfdex %x\n", grfdex);
 703         return E_NOTIMPL;
 704     }
 705
 706     return jsdisp_get_id(This, bstrName, grfdex, pid);
 707 }
 708
 709 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 710         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 711 {
 712     jsdisp_t *This = impl_from_IDispatchEx(iface);
 713     dispex_prop_t *prop;
 714     jsexcept_t jsexcept;
 715     HRESULT hres;
 716
 717     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 718
 719     if(pvarRes)
 720         V_VT(pvarRes) = VT_EMPTY;
 721
 722     prop = get_prop(This, id);
 723     if(!prop || prop->type == PROP_DELETED) {
 724         TRACE("invalid id\n");
 725         return DISP_E_MEMBERNOTFOUND;
 726     }
 727
 728     memset(&jsexcept, 0, sizeof(jsexcept));
 729
 730     switch(wFlags) {
 731     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 732         wFlags = DISPATCH_METHOD;
 733         /* fall through */
 734     case DISPATCH_METHOD:
 735     case DISPATCH_CONSTRUCT: {
 736         DISPPARAMS params;
 737         VARIANT buf[6];
 738
 739         hres = convert_params(pdp, buf, &params);
 740         if(FAILED(hres))
 741             return hres;
 742
 743         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, &params, pvarRes, &jsexcept, pspCaller);
 744         if(params.rgvarg != buf && params.rgvarg != pdp->rgvarg)
 745             heap_free(params.rgvarg);
 746         break;
 747     }
 748     case DISPATCH_PROPERTYGET:
 749         hres = prop_get(This, prop, pdp, pvarRes, &jsexcept, pspCaller);
 750         break;
 751     case DISPATCH_PROPERTYPUT: {
 752         DWORD i;
 753
 754         for(i=0; i < pdp->cNamedArgs; i++) {
 755             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 756                 break;
 757         }
 758
 759         if(i == pdp->cNamedArgs) {
 760             TRACE("no value to set\n");
 761             return DISP_E_PARAMNOTOPTIONAL;
 762         }
 763
 764         hres = prop_put(This, prop, pdp->rgvarg+i, &jsexcept, pspCaller);
 765         break;
 766     }
 767     default:
 768         FIXME("Unimplemented flags %x\n", wFlags);
 769         return E_INVALIDARG;
 770     }
 771
 772     if(pei)
 773         *pei = jsexcept.ei;
 774
 775     return hres;
 776 }
 777
 778 static HRESULT delete_prop(dispex_prop_t *prop)
 779 {
 780     if(prop->type == PROP_VARIANT) {
 781         VariantClear(&prop->u.var);
 782         prop->type = PROP_DELETED;
 783     }
 784     return S_OK;
 785 }
 786
 787 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 788 {
 789     jsdisp_t *This = impl_from_IDispatchEx(iface);
 790     dispex_prop_t *prop;
 791     HRESULT hres;
 792
 793     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 794
 795     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 796         FIXME("Unsupported grfdex %x\n", grfdex);
 797
 798     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 799     if(FAILED(hres))
 800         return hres;
 801     if(!prop) {
 802         TRACE("not found\n");
 803         return S_OK;
 804     }
 805
 806     return delete_prop(prop);
 807 }
 808
 809 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 810 {
 811     jsdisp_t *This = impl_from_IDispatchEx(iface);
 812     dispex_prop_t *prop;
 813
 814     TRACE("(%p)->(%x)\n", This, id);
 815
 816     prop = get_prop(This, id);
 817     if(!prop) {
 818         WARN("invalid id\n");
 819         return DISP_E_MEMBERNOTFOUND;
 820     }
 821
 822     return delete_prop(prop);
 823 }
 824
 825 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 826 {
 827     jsdisp_t *This = impl_from_IDispatchEx(iface);
 828     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 829     return E_NOTIMPL;
 830 }
 831
 832 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 833 {
 834     jsdisp_t *This = impl_from_IDispatchEx(iface);
 835     dispex_prop_t *prop;
 836
 837     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 838
 839     prop = get_prop(This, id);
 840     if(!prop || !prop->name || prop->type == PROP_DELETED)
 841         return DISP_E_MEMBERNOTFOUND;
 842
 843     *pbstrName = SysAllocString(prop->name);
 844     if(!*pbstrName)
 845         return E_OUTOFMEMORY;
 846
 847     return S_OK;
 848 }
 849
 850 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 851 {
 852     jsdisp_t *This = impl_from_IDispatchEx(iface);
 853     dispex_prop_t *iter;
 854     HRESULT hres;
 855
 856     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 857
 858     if(id == DISPID_STARTENUM) {
 859         hres = fill_protrefs(This);
 860         if(FAILED(hres))
 861             return hres;
 862     }
 863
 864     if(id+1>=0 && id+1<This->prop_cnt) {
 865         iter = &This->props[id+1];
 866     }else {
 867         *pid = DISPID_STARTENUM;
 868         return S_FALSE;
 869     }
 870
 871     while(iter < This->props + This->prop_cnt) {
 872         if(iter->name && (get_flags(This, iter) & PROPF_ENUM) && iter->type!=PROP_DELETED) {
 873             *pid = prop_to_id(This, iter);
 874             return S_OK;
 875         }
 876         iter++;
 877     }
 878
 879     *pid = DISPID_STARTENUM;
 880     return S_FALSE;
 881 }
 882
 883 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 884 {
 885     jsdisp_t *This = impl_from_IDispatchEx(iface);
 886     FIXME("(%p)->(%p)\n", This, ppunk);
 887     return E_NOTIMPL;
 888 }
 889
 890 static IDispatchExVtbl DispatchExVtbl = {
 891     DispatchEx_QueryInterface,
 892     DispatchEx_AddRef,
 893     DispatchEx_Release,
 894     DispatchEx_GetTypeInfoCount,
 895     DispatchEx_GetTypeInfo,
 896     DispatchEx_GetIDsOfNames,
 897     DispatchEx_Invoke,
 898     DispatchEx_GetDispID,
 899     DispatchEx_InvokeEx,
 900     DispatchEx_DeleteMemberByName,
 901     DispatchEx_DeleteMemberByDispID,
 902     DispatchEx_GetMemberProperties,
 903     DispatchEx_GetMemberName,
 904     DispatchEx_GetNextDispID,
 905     DispatchEx_GetNameSpaceParent
 906 };
 907
 908 jsdisp_t *as_jsdisp(IDispatch *disp)
 909 {
 910     assert(disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl);
 911     return impl_from_IDispatchEx((IDispatchEx*)disp);
 912 }
 913
 914 jsdisp_t *to_jsdisp(IDispatch *disp)
 915 {
 916     return disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl ? impl_from_IDispatchEx((IDispatchEx*)disp) : NULL;
 917 }
 918
 919 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 920 {
 921     TRACE("%p (%p)\n", dispex, prototype);
 922
 923     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 924     dispex->ref = 1;
 925     dispex->builtin_info = builtin_info;
 926
 927     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 928     if(!dispex->props)
 929         return E_OUTOFMEMORY;
 930
 931     dispex->prototype = prototype;
 932     if(prototype)
 933         jsdisp_addref(prototype);
 934
 935     dispex->prop_cnt = 1;
 936     if(builtin_info->value_prop.invoke) {
 937         dispex->props[0].type = PROP_BUILTIN;
 938         dispex->props[0].u.p = &builtin_info->value_prop;
 939     }else {
 940         dispex->props[0].type = PROP_DELETED;
 941     }
 942
 943     script_addref(ctx);
 944     dispex->ctx = ctx;
 945
 946     return S_OK;
 947 }
 948
 949 static const builtin_info_t dispex_info = {
 950     JSCLASS_NONE,
 951     {NULL, NULL, 0},
 952     0, NULL,
 953     NULL,
 954     NULL
 955 };
 956
 957 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 958 {
 959     jsdisp_t *ret;
 960     HRESULT hres;
 961
 962     ret = heap_alloc_zero(sizeof(jsdisp_t));
 963     if(!ret)
 964         return E_OUTOFMEMORY;
 965
 966     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 967     if(FAILED(hres))
 968         return hres;
 969
 970     *dispex = ret;
 971     return S_OK;
 972 }
 973
 974 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
 975 {
 976     jsdisp_t *prot = NULL;
 977     dispex_prop_t *prop;
 978     HRESULT hres;
 979
 980     static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
 981     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 982
 983     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
 984     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
 985         jsexcept_t jsexcept;
 986         VARIANT var;
 987
 988         V_VT(&var) = VT_EMPTY;
 989         memset(&jsexcept, 0, sizeof(jsexcept));
 990         hres = prop_get(constr, prop, NULL, &var, &jsexcept, NULL/*FIXME*/);
 991         if(FAILED(hres)) {
 992             ERR("Could not get prototype\n");
 993             return hres;
 994         }
 995
 996         if(V_VT(&var) == VT_DISPATCH)
 997             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 998         VariantClear(&var);
 999     }
1000
1001     hres = init_dispex(dispex, ctx, builtin_info, prot);
1002
1003     if(prot)
1004         jsdisp_release(prot);
1005     if(FAILED(hres))
1006         return hres;
1007
1008     hres = ensure_prop_name(dispex, constructorW, FALSE, 0, &prop);
1009     if(SUCCEEDED(hres)) {
1010         jsexcept_t jsexcept;
1011         VARIANT var;
1012
1013         var_set_jsdisp(&var, constr);
1014         memset(&jsexcept, 0, sizeof(jsexcept));
1015         hres = prop_put(dispex, prop, &var, &jsexcept, NULL/*FIXME*/);
1016     }
1017     if(FAILED(hres))
1018         jsdisp_release(dispex);
1019
1020     return hres;
1021 }
1022
1023 jsdisp_t *iface_to_jsdisp(IUnknown *iface)
1024 {
1025     jsdisp_t *ret;
1026     HRESULT hres;
1027
1028     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
1029     if(FAILED(hres))
1030         return NULL;
1031
1032     return ret;
1033 }
1034
1035 static void ensure_retval_type(VARIANT *v)
1036 {
1037     switch(V_VT(v)) {
1038     case VT_I2:
1039         V_VT(v) = VT_I4;
1040         V_I4(v) = V_I2(v);
1041         break;
1042     case VT_INT:
1043         V_VT(v) = VT_I4;
1044         V_I4(v) = V_INT(v);
1045     }
1046 }
1047
1048 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
1049 {
1050     dispex_prop_t *prop;
1051     HRESULT hres;
1052
1053     if(flags & fdexNameEnsure)
1054         hres = ensure_prop_name(jsdisp, name, TRUE, PROPF_ENUM, &prop);
1055     else
1056         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
1057     if(FAILED(hres))
1058         return hres;
1059
1060     if(prop && prop->type!=PROP_DELETED) {
1061         *id = prop_to_id(jsdisp, prop);
1062         return S_OK;
1063     }
1064
1065     TRACE("not found %s\n", debugstr_w(name));
1066     return DISP_E_UNKNOWNNAME;
1067 }
1068
1069 HRESULT jsdisp_call_value(jsdisp_t *jsfunc, IDispatch *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1070 {
1071     HRESULT hres;
1072
1073     TRACE("args %p\n", dp->rgvarg);
1074
1075     if(is_class(jsfunc, JSCLASS_FUNCTION)) {
1076         hres = Function_invoke(jsfunc, jsthis, flags, dp, retv, ei);
1077     }else {
1078         vdisp_t vdisp;
1079
1080         set_disp(&vdisp, jsthis);
1081         hres = jsfunc->builtin_info->value_prop.invoke(jsfunc->ctx, &vdisp, flags, dp, retv, ei);
1082         vdisp_release(&vdisp);
1083     }
1084     return hres;
1085 }
1086
1087 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1088 {
1089     dispex_prop_t *prop;
1090
1091     memset(ei, 0, sizeof(*ei));
1092     if(retv)
1093         V_VT(retv) = VT_EMPTY;
1094
1095     prop = get_prop(disp, id);
1096     if(!prop)
1097         return DISP_E_MEMBERNOTFOUND;
1098
1099     return invoke_prop_func(disp, to_disp(disp), prop, flags, dp, retv, ei, NULL);
1100 }
1101
1102 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, DISPPARAMS *dp, VARIANT *retv,
1103         jsexcept_t *ei)
1104 {
1105     dispex_prop_t *prop;
1106     HRESULT hres;
1107
1108     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1109     if(FAILED(hres))
1110         return hres;
1111
1112     memset(ei, 0, sizeof(*ei));
1113     if(retv)
1114         V_VT(retv) = VT_EMPTY;
1115
1116     return invoke_prop_func(disp, to_disp(disp), prop, flags, dp, retv, ei, NULL);
1117 }
1118
1119 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei)
1120 {
1121     jsdisp_t *jsdisp;
1122     IDispatchEx *dispex;
1123     HRESULT hres;
1124
1125     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1126     if(jsdisp) {
1127         if(flags & DISPATCH_PROPERTYPUT) {
1128             FIXME("disp_call(propput) on builtin object\n");
1129             return E_FAIL;
1130         }
1131
1132         hres = jsdisp_call(jsdisp, id, flags, dp, retv, ei);
1133         jsdisp_release(jsdisp);
1134         return hres;
1135     }
1136
1137     memset(ei, 0, sizeof(*ei));
1138     if(retv && arg_cnt(dp))
1139         flags |= DISPATCH_PROPERTYGET;
1140
1141     if(retv)
1142         V_VT(retv) = VT_EMPTY;
1143     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1144     if(SUCCEEDED(hres)) {
1145         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, dp, retv, &ei->ei, &ctx->jscaller->IServiceProvider_iface);
1146         IDispatchEx_Release(dispex);
1147     }else {
1148         UINT err = 0;
1149
1150         if(flags == DISPATCH_CONSTRUCT) {
1151             WARN("IDispatch cannot be constructor\n");
1152             return DISP_E_MEMBERNOTFOUND;
1153         }
1154
1155         TRACE("using IDispatch\n");
1156         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, dp, retv, &ei->ei, &err);
1157     }
1158
1159     if(FAILED(hres))
1160         return hres;
1161
1162     if(retv)
1163         ensure_retval_type(retv);
1164     return S_OK;
1165 }
1166
1167 HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, IDispatch *jsthis, WORD flags, DISPPARAMS *dp,
1168         VARIANT *retv, jsexcept_t *ei)
1169 {
1170     DISPPARAMS params;
1171     jsdisp_t *jsdisp;
1172     IDispatchEx *dispex;
1173     HRESULT hres;
1174
1175     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1176     if(jsdisp) {
1177         if(flags & DISPATCH_PROPERTYPUT) {
1178             FIXME("disp_call(propput) on builtin object\n");
1179             return E_FAIL;
1180         }
1181
1182         hres = jsdisp_call_value(jsdisp, jsthis, flags, dp, retv, ei);
1183         jsdisp_release(jsdisp);
1184         return hres;
1185     }
1186
1187     memset(ei, 0, sizeof(*ei));
1188     if(retv && arg_cnt(dp))
1189         flags |= DISPATCH_PROPERTYGET;
1190
1191     if(jsthis) {
1192         hres = set_this(&params, dp, jsthis);
1193         if(FAILED(hres))
1194             return hres;
1195     }else {
1196         params = *dp;
1197     }
1198
1199     if(retv)
1200         V_VT(retv) = VT_EMPTY;
1201     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1202     if(SUCCEEDED(hres)) {
1203         hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, ctx->lcid, flags, &params, retv, &ei->ei,
1204                 &ctx->jscaller->IServiceProvider_iface);
1205         IDispatchEx_Release(dispex);
1206     }else {
1207         UINT err = 0;
1208
1209         if(flags == DISPATCH_CONSTRUCT) {
1210             WARN("IDispatch cannot be constructor\n");
1211             return DISP_E_MEMBERNOTFOUND;
1212         }
1213
1214         TRACE("using IDispatch\n");
1215         hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, ctx->lcid, flags, &params, retv, &ei->ei, &err);
1216     }
1217
1218     if(params.rgvarg != dp->rgvarg) {
1219         heap_free(params.rgvarg);
1220         if(params.cNamedArgs > 1)
1221             heap_free(params.rgdispidNamedArgs);
1222     }
1223
1224     if(FAILED(hres))
1225         return hres;
1226
1227     if(retv)
1228         ensure_retval_type(retv);
1229     return S_OK;
1230 }
1231
1232 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, VARIANT *val, jsexcept_t *ei)
1233 {
1234     dispex_prop_t *prop;
1235     HRESULT hres;
1236
1237     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM, &prop);
1238     if(FAILED(hres))
1239         return hres;
1240
1241     return prop_put(obj, prop, val, ei, NULL);
1242 }
1243
1244 HRESULT jsdisp_propput_const(jsdisp_t *obj, const WCHAR *name, VARIANT *val)
1245 {
1246     dispex_prop_t *prop;
1247     HRESULT hres;
1248
1249     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM|PROPF_CONST, &prop);
1250     if(FAILED(hres))
1251         return hres;
1252
1253     return VariantCopy(&prop->u.var, val);
1254 }
1255
1256 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, VARIANT *val, jsexcept_t *ei)
1257 {
1258     WCHAR buf[12];
1259
1260     static const WCHAR formatW[] = {'%','d',0};
1261
1262     sprintfW(buf, formatW, idx);
1263     return jsdisp_propput_name(obj, buf, val, ei);
1264 }
1265
1266 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1267 {
1268     jsdisp_t *jsdisp;
1269     HRESULT hres;
1270
1271     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1272     if(jsdisp) {
1273         dispex_prop_t *prop;
1274
1275         prop = get_prop(jsdisp, id);
1276         if(prop)
1277             hres = prop_put(jsdisp, prop, val, ei, NULL);
1278         else
1279             hres = DISP_E_MEMBERNOTFOUND;
1280
1281         jsdisp_release(jsdisp);
1282     }else {
1283         DISPID dispid = DISPID_PROPERTYPUT;
1284         DISPPARAMS dp  = {val, &dispid, 1, 1};
1285         IDispatchEx *dispex;
1286
1287         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1288         if(SUCCEEDED(hres)) {
1289             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei,
1290                     &ctx->jscaller->IServiceProvider_iface);
1291             IDispatchEx_Release(dispex);
1292         }else {
1293             ULONG err = 0;
1294
1295             TRACE("using IDispatch\n");
1296             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, &err);
1297         }
1298     }
1299
1300     return hres;
1301 }
1302
1303 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, VARIANT *var, jsexcept_t *ei)
1304 {
1305     DISPPARAMS dp = {NULL, NULL, 0, 0};
1306     dispex_prop_t *prop;
1307     HRESULT hres;
1308
1309     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1310     if(FAILED(hres))
1311         return hres;
1312
1313     V_VT(var) = VT_EMPTY;
1314     if(!prop || prop->type==PROP_DELETED)
1315         return S_OK;
1316
1317     return prop_get(obj, prop, &dp, var, ei, NULL);
1318 }
1319
1320 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, VARIANT *var, jsexcept_t *ei)
1321 {
1322     WCHAR name[12];
1323     DISPPARAMS dp = {NULL, NULL, 0, 0};
1324     dispex_prop_t *prop;
1325     HRESULT hres;
1326
1327     static const WCHAR formatW[] = {'%','d',0};
1328
1329     sprintfW(name, formatW, idx);
1330
1331     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1332     if(FAILED(hres))
1333         return hres;
1334
1335     V_VT(var) = VT_EMPTY;
1336     if(!prop || prop->type==PROP_DELETED)
1337         return DISP_E_UNKNOWNNAME;
1338
1339     return prop_get(obj, prop, &dp, var, ei, NULL);
1340 }
1341
1342 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, VARIANT *val, jsexcept_t *ei)
1343 {
1344     DISPPARAMS dp  = {NULL,NULL,0,0};
1345     dispex_prop_t *prop;
1346
1347     prop = get_prop(jsdisp, id);
1348     if(!prop)
1349         return DISP_E_MEMBERNOTFOUND;
1350
1351     V_VT(val) = VT_EMPTY;
1352     return prop_get(jsdisp, prop, &dp, val, ei, NULL);
1353 }
1354
1355 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei)
1356 {
1357     DISPPARAMS dp  = {NULL,NULL,0,0};
1358     IDispatchEx *dispex;
1359     jsdisp_t *jsdisp;
1360     HRESULT hres;
1361
1362     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1363     if(jsdisp) {
1364         hres = jsdisp_propget(jsdisp, id, val, ei);
1365         jsdisp_release(jsdisp);
1366         return hres;
1367     }
1368
1369     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1370     if(SUCCEEDED(hres)) {
1371         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei,
1372                 &ctx->jscaller->IServiceProvider_iface);
1373         IDispatchEx_Release(dispex);
1374     }else {
1375         ULONG err = 0;
1376
1377         TRACE("using IDispatch\n");
1378         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
1379     }
1380     if(FAILED(hres))
1381         return hres;
1382
1383     ensure_retval_type(val);
1384     return S_OK;
1385 }
1386
1387 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1388 {
1389     static const WCHAR formatW[] = {'%','d',0};
1390     WCHAR buf[12];
1391     dispex_prop_t *prop;
1392     HRESULT hres;
1393
1394     sprintfW(buf, formatW, idx);
1395
1396     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1397     if(FAILED(hres) || !prop)
1398         return hres;
1399
1400     return delete_prop(prop);
1401 }
1402
1403 VARIANT_BOOL jsdisp_is_own_prop(jsdisp_t *obj, BSTR name)
1404 {
1405     dispex_prop_t *prop;
1406     HRESULT hres;
1407
1408     hres = find_prop_name(obj, string_hash(name), name, &prop);
1409     if(FAILED(hres))
1410         return VARIANT_FALSE;
1411     else if(!prop)
1412         return VARIANT_FALSE;
1413
1414     return prop->type==PROP_VARIANT ? VARIANT_TRUE : VARIANT_FALSE;
1415 }