dll/win32/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 #define FDEX_VERSION_MASK 0xf0000000
  29 #define GOLDEN_RATIO 0x9E3779B9U
  30
  31 typedef enum {
  32     PROP_JSVAL,
  33     PROP_BUILTIN,
  34     PROP_PROTREF,
  35     PROP_ACCESSOR,
  36     PROP_DELETED,
  37     PROP_IDX
  38 } prop_type_t;
  39
  40 struct _dispex_prop_t {
  41     WCHAR *name;
  42     unsigned hash;
  43     prop_type_t type;
  44     DWORD flags;
  45
  46     union {
  47         jsval_t val;
  48         const builtin_prop_t *p;
  49         DWORD ref;
  50         unsigned idx;
  51         struct {
  52             jsdisp_t *getter;
  53             jsdisp_t *setter;
  54         } accessor;
  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             /* Skip prop if it's available only in higher compatibility mode. */
 100             unsigned version = (This->builtin_info->props[i].flags & PROPF_VERSION_MASK)
 101                 >> PROPF_VERSION_SHIFT;
 102             if(version && version > This->ctx->version)
 103                 return NULL;
 104
 105             /* Skip prop if it's available only in HTML mode and we're not running in HTML mode. */
 106             if((This->builtin_info->props[i].flags & PROPF_HTML) && !This->ctx->html_mode)
 107                 return NULL;
 108
 109             return This->builtin_info->props + i;
 110         }
 111
 112         if(r < 0)
 113             max = i-1;
 114         else
 115             min = i+1;
 116     }
 117
 118     return NULL;
 119 }
 120
 121 static inline unsigned string_hash(const WCHAR *name)
 122 {
 123     unsigned h = 0;
 124     for(; *name; name++)
 125         h = (h>>(sizeof(unsigned)*8-4)) ^ (h<<4) ^ tolowerW(*name);
 126     return h;
 127 }
 128
 129 static inline unsigned get_props_idx(jsdisp_t *This, unsigned hash)
 130 {
 131     return (hash*GOLDEN_RATIO) & (This->buf_size-1);
 132 }
 133
 134 static inline HRESULT resize_props(jsdisp_t *This)
 135 {
 136     dispex_prop_t *props;
 137     int i, bucket;
 138
 139     if(This->buf_size != This->prop_cnt)
 140         return S_FALSE;
 141
 142     props = heap_realloc(This->props, sizeof(dispex_prop_t)*This->buf_size*2);
 143     if(!props)
 144         return E_OUTOFMEMORY;
 145     This->buf_size *= 2;
 146     This->props = props;
 147
 148     for(i=0; i<This->buf_size; i++) {
 149         This->props[i].bucket_head = 0;
 150         This->props[i].bucket_next = 0;
 151     }
 152
 153     for(i=1; i<This->prop_cnt; i++) {
 154         props = This->props+i;
 155
 156         bucket = get_props_idx(This, props->hash);
 157         props->bucket_next = This->props[bucket].bucket_head;
 158         This->props[bucket].bucket_head = i;
 159     }
 160
 161     return S_OK;
 162 }
 163
 164 static inline dispex_prop_t* alloc_prop(jsdisp_t *This, const WCHAR *name, prop_type_t type, DWORD flags)
 165 {
 166     dispex_prop_t *prop;
 167     unsigned bucket;
 168
 169     if(FAILED(resize_props(This)))
 170         return NULL;
 171
 172     prop = &This->props[This->prop_cnt];
 173     prop->name = heap_strdupW(name);
 174     if(!prop->name)
 175         return NULL;
 176     prop->type = type;
 177     prop->flags = flags;
 178     prop->hash = string_hash(name);
 179
 180     bucket = get_props_idx(This, prop->hash);
 181     prop->bucket_next = This->props[bucket].bucket_head;
 182     This->props[bucket].bucket_head = This->prop_cnt++;
 183     return prop;
 184 }
 185
 186 static dispex_prop_t *alloc_protref(jsdisp_t *This, const WCHAR *name, DWORD ref)
 187 {
 188     dispex_prop_t *ret;
 189
 190     ret = alloc_prop(This, name, PROP_PROTREF, 0);
 191     if(!ret)
 192         return NULL;
 193
 194     ret->u.ref = ref;
 195     return ret;
 196 }
 197
 198 static HRESULT find_prop_name(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 199 {
 200     const builtin_prop_t *builtin;
 201     unsigned bucket, pos, prev = 0;
 202     dispex_prop_t *prop;
 203
 204     bucket = get_props_idx(This, hash);
 205     pos = This->props[bucket].bucket_head;
 206     while(pos != 0) {
 207         if(!strcmpW(name, This->props[pos].name)) {
 208             if(prev != 0) {
 209                 This->props[prev].bucket_next = This->props[pos].bucket_next;
 210                 This->props[pos].bucket_next = This->props[bucket].bucket_head;
 211                 This->props[bucket].bucket_head = pos;
 212             }
 213
 214             *ret = &This->props[pos];
 215             return S_OK;
 216         }
 217
 218         prev = pos;
 219         pos = This->props[pos].bucket_next;
 220     }
 221
 222     builtin = find_builtin_prop(This, name);
 223     if(builtin) {
 224         unsigned flags = builtin->flags;
 225         if(flags & PROPF_METHOD)
 226             flags |= PROPF_WRITABLE | PROPF_CONFIGURABLE;
 227         else if(builtin->setter)
 228             flags |= PROPF_WRITABLE;
 229         flags &= PROPF_ENUMERABLE | PROPF_WRITABLE | PROPF_CONFIGURABLE;
 230         prop = alloc_prop(This, name, PROP_BUILTIN, flags);
 231         if(!prop)
 232             return E_OUTOFMEMORY;
 233
 234         prop->u.p = builtin;
 235         *ret = prop;
 236         return S_OK;
 237     }
 238
 239     if(This->builtin_info->idx_length) {
 240         const WCHAR *ptr;
 241         unsigned idx = 0;
 242
 243         for(ptr = name; isdigitW(*ptr) && idx < 0x10000; ptr++)
 244             idx = idx*10 + (*ptr-'0');
 245         if(!*ptr && idx < This->builtin_info->idx_length(This)) {
 246             prop = alloc_prop(This, name, PROP_IDX, This->builtin_info->idx_put ? PROPF_WRITABLE : 0);
 247             if(!prop)
 248                 return E_OUTOFMEMORY;
 249
 250             prop->u.idx = idx;
 251             *ret = prop;
 252             return S_OK;
 253         }
 254     }
 255
 256     *ret = NULL;
 257     return S_OK;
 258 }
 259
 260 static HRESULT find_prop_name_prot(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 261 {
 262     dispex_prop_t *prop, *del=NULL;
 263     HRESULT hres;
 264
 265     hres = find_prop_name(This, hash, name, &prop);
 266     if(FAILED(hres))
 267         return hres;
 268     if(prop && prop->type==PROP_DELETED) {
 269         del = prop;
 270     } else if(prop) {
 271         *ret = prop;
 272         return S_OK;
 273     }
 274
 275     if(This->prototype) {
 276         hres = find_prop_name_prot(This->prototype, hash, name, &prop);
 277         if(FAILED(hres))
 278             return hres;
 279         if(prop) {
 280             if(del) {
 281                 del->type = PROP_PROTREF;
 282                 del->u.ref = prop - This->prototype->props;
 283                 prop = del;
 284             }else {
 285                 prop = alloc_protref(This, prop->name, prop - This->prototype->props);
 286                 if(!prop)
 287                     return E_OUTOFMEMORY;
 288             }
 289
 290             *ret = prop;
 291             return S_OK;
 292         }
 293     }
 294
 295     *ret = del;
 296     return S_OK;
 297 }
 298
 299 static HRESULT ensure_prop_name(jsdisp_t *This, const WCHAR *name, DWORD create_flags, dispex_prop_t **ret)
 300 {
 301     dispex_prop_t *prop;
 302     HRESULT hres;
 303
 304     hres = find_prop_name_prot(This, string_hash(name), name, &prop);
 305     if(SUCCEEDED(hres) && (!prop || prop->type == PROP_DELETED)) {
 306         TRACE("creating prop %s flags %x\n", debugstr_w(name), create_flags);
 307
 308         if(prop) {
 309             prop->type = PROP_JSVAL;
 310             prop->flags = create_flags;
 311             prop->u.val = jsval_undefined();
 312         }else {
 313             prop = alloc_prop(This, name, PROP_JSVAL, create_flags);
 314             if(!prop)
 315                 return E_OUTOFMEMORY;
 316         }
 317
 318         prop->u.val = jsval_undefined();
 319     }
 320
 321     *ret = prop;
 322     return hres;
 323 }
 324
 325 static IDispatch *get_this(DISPPARAMS *dp)
 326 {
 327     DWORD i;
 328
 329     for(i=0; i < dp->cNamedArgs; i++) {
 330         if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
 331             if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
 332                 return V_DISPATCH(dp->rgvarg+i);
 333
 334             WARN("This is not VT_DISPATCH\n");
 335             return NULL;
 336         }
 337     }
 338
 339     TRACE("no this passed\n");
 340     return NULL;
 341 }
 342
 343 static HRESULT convert_params(const DISPPARAMS *dp, jsval_t *buf, unsigned *argc, jsval_t **ret)
 344 {
 345     jsval_t *argv;
 346     unsigned cnt;
 347     unsigned i;
 348     HRESULT hres;
 349
 350     cnt = dp->cArgs - dp->cNamedArgs;
 351
 352     if(cnt > 6) {
 353         argv = heap_alloc(cnt * sizeof(*argv));
 354         if(!argv)
 355             return E_OUTOFMEMORY;
 356     }else {
 357         argv = buf;
 358     }
 359
 360     for(i = 0; i < cnt; i++) {
 361         hres = variant_to_jsval(dp->rgvarg+dp->cArgs-i-1, argv+i);
 362         if(FAILED(hres)) {
 363             while(i--)
 364                 jsval_release(argv[i]);
 365             if(argv != buf)
 366                 heap_free(argv);
 367             return hres;
 368         }
 369     }
 370
 371     *argc = cnt;
 372     *ret = argv;
 373     return S_OK;
 374 }
 375
 376 static HRESULT invoke_prop_func(jsdisp_t *This, IDispatch *jsthis, dispex_prop_t *prop, WORD flags,
 377         unsigned argc, jsval_t *argv, jsval_t *r, IServiceProvider *caller)
 378 {
 379     HRESULT hres;
 380
 381     switch(prop->type) {
 382     case PROP_BUILTIN: {
 383         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 384             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 385             return E_INVALIDARG;
 386         }
 387
 388         if(prop->name || This->builtin_info->class != JSCLASS_FUNCTION) {
 389             vdisp_t vthis;
 390
 391             if(This->builtin_info->class != JSCLASS_FUNCTION && prop->u.p->invoke != JSGlobal_eval)
 392                 flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
 393             if(jsthis)
 394                 set_disp(&vthis, jsthis);
 395             else
 396                 set_jsdisp(&vthis, This);
 397             hres = prop->u.p->invoke(This->ctx, &vthis, flags, argc, argv, r);
 398             vdisp_release(&vthis);
 399         }else {
 400             /* Function object calls are special case */
 401             hres = Function_invoke(This, jsthis, flags, argc, argv, r);
 402         }
 403         return hres;
 404     }
 405     case PROP_PROTREF:
 406         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref,
 407                 flags, argc, argv, r, caller);
 408     case PROP_JSVAL: {
 409         if(!is_object_instance(prop->u.val)) {
 410             FIXME("invoke %s\n", debugstr_jsval(prop->u.val));
 411             return E_FAIL;
 412         }
 413
 414         TRACE("call %s %p\n", debugstr_w(prop->name), get_object(prop->u.val));
 415
 416         return disp_call_value(This->ctx, get_object(prop->u.val), jsthis, flags, argc, argv, r);
 417     }
 418     case PROP_ACCESSOR:
 419         FIXME("accessor\n");
 420         return E_NOTIMPL;
 421     case PROP_IDX:
 422         FIXME("Invoking PROP_IDX not yet supported\n");
 423         return E_NOTIMPL;
 424     case PROP_DELETED:
 425         assert(0);
 426     }
 427
 428     assert(0);
 429     return E_FAIL;
 430 }
 431
 432 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop,  jsval_t *r)
 433 {
 434     jsdisp_t *prop_obj = This;
 435     HRESULT hres;
 436
 437     while(prop->type == PROP_PROTREF) {
 438         prop_obj = prop_obj->prototype;
 439         prop = prop_obj->props + prop->u.ref;
 440     }
 441
 442     switch(prop->type) {
 443     case PROP_BUILTIN:
 444         if(prop->u.p->getter) {
 445             hres = prop->u.p->getter(This->ctx, This, r);
 446         }else {
 447             jsdisp_t *obj;
 448
 449             assert(prop->u.p->invoke != NULL);
 450             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 451                     prop->u.p->flags, NULL, &obj);
 452             if(FAILED(hres))
 453                 break;
 454
 455             prop->type = PROP_JSVAL;
 456             prop->u.val = jsval_obj(obj);
 457
 458             jsdisp_addref(obj);
 459             *r = jsval_obj(obj);
 460         }
 461         break;
 462     case PROP_JSVAL:
 463         hres = jsval_copy(prop->u.val, r);
 464         break;
 465     case PROP_ACCESSOR:
 466         if(prop->u.accessor.getter) {
 467             hres = jsdisp_call_value(prop->u.accessor.getter, to_disp(This),
 468                                      DISPATCH_METHOD, 0, NULL, r);
 469         }else {
 470             *r = jsval_undefined();
 471             hres = S_OK;
 472         }
 473         break;
 474     case PROP_IDX:
 475         hres = prop_obj->builtin_info->idx_get(prop_obj, prop->u.idx, r);
 476         break;
 477     default:
 478         ERR("type %d\n", prop->type);
 479         return E_FAIL;
 480     }
 481
 482     if(FAILED(hres)) {
 483         TRACE("fail %08x\n", hres);
 484         return hres;
 485     }
 486
 487     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_jsval(*r));
 488     return hres;
 489 }
 490
 491 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, jsval_t val)
 492 {
 493     HRESULT hres;
 494
 495     if(prop->type == PROP_PROTREF) {
 496         dispex_prop_t *prop_iter = prop;
 497         jsdisp_t *prototype_iter = This;
 498
 499         do {
 500             prototype_iter = prototype_iter->prototype;
 501             prop_iter = prototype_iter->props + prop_iter->u.ref;
 502         } while(prop_iter->type == PROP_PROTREF);
 503
 504         if(prop_iter->type == PROP_ACCESSOR)
 505             prop = prop_iter;
 506     }
 507
 508     switch(prop->type) {
 509     case PROP_BUILTIN:
 510         if(!prop->u.p->setter) {
 511             TRACE("getter with no setter\n");
 512             return S_OK;
 513         }
 514         return prop->u.p->setter(This->ctx, This, val);
 515     case PROP_PROTREF:
 516     case PROP_DELETED:
 517         prop->type = PROP_JSVAL;
 518         prop->flags = PROPF_ENUMERABLE | PROPF_CONFIGURABLE | PROPF_WRITABLE;
 519         prop->u.val = jsval_undefined();
 520         break;
 521     case PROP_JSVAL:
 522         if(!(prop->flags & PROPF_WRITABLE))
 523             return S_OK;
 524
 525         jsval_release(prop->u.val);
 526         break;
 527     case PROP_ACCESSOR:
 528         if(!prop->u.accessor.setter) {
 529             TRACE("no setter\n");
 530             return S_OK;
 531         }
 532         return jsdisp_call_value(prop->u.accessor.setter, to_disp(This), DISPATCH_METHOD, 1, &val, NULL);
 533     case PROP_IDX:
 534         if(!This->builtin_info->idx_put) {
 535             TRACE("no put_idx\n");
 536             return S_OK;
 537         }
 538         return This->builtin_info->idx_put(This, prop->u.idx, val);
 539     default:
 540         ERR("type %d\n", prop->type);
 541         return E_FAIL;
 542     }
 543
 544     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_jsval(val));
 545
 546     hres = jsval_copy(val, &prop->u.val);
 547     if(FAILED(hres))
 548         return hres;
 549
 550     if(This->builtin_info->on_put)
 551         This->builtin_info->on_put(This, prop->name);
 552
 553     return S_OK;
 554 }
 555
 556 HRESULT builtin_set_const(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t value)
 557 {
 558     TRACE("%p %s\n", jsthis, debugstr_jsval(value));
 559     return S_OK;
 560 }
 561
 562 static HRESULT fill_protrefs(jsdisp_t *This)
 563 {
 564     dispex_prop_t *iter, *prop;
 565     HRESULT hres;
 566
 567     if(!This->prototype)
 568         return S_OK;
 569
 570     fill_protrefs(This->prototype);
 571
 572     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 573         if(!iter->name)
 574             continue;
 575         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 576         if(FAILED(hres))
 577             return hres;
 578         if(!prop || prop->type==PROP_DELETED) {
 579             if(prop) {
 580                 prop->type = PROP_PROTREF;
 581                 prop->flags = 0;
 582                 prop->u.ref = iter - This->prototype->props;
 583             }else {
 584                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 585                 if(!prop)
 586                     return E_OUTOFMEMORY;
 587             }
 588         }
 589     }
 590
 591     return S_OK;
 592 }
 593
 594 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 595 {
 596     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 597 }
 598
 599 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 600 {
 601     jsdisp_t *This = impl_from_IDispatchEx(iface);
 602
 603     if(IsEqualGUID(&IID_IUnknown, riid)) {
 604         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 605         *ppv = &This->IDispatchEx_iface;
 606     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 607         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 608         *ppv = &This->IDispatchEx_iface;
 609     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 610         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 611         *ppv = &This->IDispatchEx_iface;
 612     }else {
 613         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 614         *ppv = NULL;
 615         return E_NOINTERFACE;
 616     }
 617
 618     jsdisp_addref(This);
 619     return S_OK;
 620 }
 621
 622 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 623 {
 624     jsdisp_t *This = impl_from_IDispatchEx(iface);
 625     jsdisp_addref(This);
 626     return This->ref;
 627 }
 628
 629 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 630 {
 631     jsdisp_t *This = impl_from_IDispatchEx(iface);
 632     ULONG ref = --This->ref;
 633     TRACE("(%p) ref=%d\n", This, ref);
 634     if(!ref)
 635         jsdisp_free(This);
 636     return ref;
 637 }
 638
 639 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 640 {
 641     jsdisp_t *This = impl_from_IDispatchEx(iface);
 642
 643     TRACE("(%p)->(%p)\n", This, pctinfo);
 644
 645     *pctinfo = 1;
 646     return S_OK;
 647 }
 648
 649 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 650                                               ITypeInfo **ppTInfo)
 651 {
 652     jsdisp_t *This = impl_from_IDispatchEx(iface);
 653     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 654     return E_NOTIMPL;
 655 }
 656
 657 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 658                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 659                                                 DISPID *rgDispId)
 660 {
 661     jsdisp_t *This = impl_from_IDispatchEx(iface);
 662     UINT i;
 663     HRESULT hres;
 664
 665     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 666           lcid, rgDispId);
 667
 668     for(i=0; i < cNames; i++) {
 669         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 670         if(FAILED(hres))
 671             return hres;
 672     }
 673
 674     return S_OK;
 675 }
 676
 677 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 678                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 679                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 680 {
 681     jsdisp_t *This = impl_from_IDispatchEx(iface);
 682
 683     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 684           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 685
 686     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 687             pDispParams, pVarResult, pExcepInfo, NULL);
 688 }
 689
 690 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 691 {
 692     jsdisp_t *This = impl_from_IDispatchEx(iface);
 693
 694     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 695
 696     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 697         FIXME("Unsupported grfdex %x\n", grfdex);
 698         return E_NOTIMPL;
 699     }
 700
 701     return jsdisp_get_id(This, bstrName, grfdex, pid);
 702 }
 703
 704 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 705         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 706 {
 707     jsdisp_t *This = impl_from_IDispatchEx(iface);
 708     dispex_prop_t *prop;
 709     HRESULT hres;
 710
 711     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 712
 713     if(pvarRes)
 714         V_VT(pvarRes) = VT_EMPTY;
 715
 716     prop = get_prop(This, id);
 717     if(!prop || prop->type == PROP_DELETED) {
 718         TRACE("invalid id\n");
 719         return DISP_E_MEMBERNOTFOUND;
 720     }
 721
 722     clear_ei(This->ctx);
 723
 724     switch(wFlags) {
 725     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 726         wFlags = DISPATCH_METHOD;
 727         /* fall through */
 728     case DISPATCH_METHOD:
 729     case DISPATCH_CONSTRUCT: {
 730         jsval_t *argv, buf[6], r;
 731         unsigned argc;
 732
 733         hres = convert_params(pdp, buf, &argc, &argv);
 734         if(FAILED(hres))
 735             return hres;
 736
 737         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, argc, argv, pvarRes ? &r : NULL, pspCaller);
 738         if(argv != buf)
 739             heap_free(argv);
 740         if(SUCCEEDED(hres) && pvarRes) {
 741             hres = jsval_to_variant(r, pvarRes);
 742             jsval_release(r);
 743         }
 744         break;
 745     }
 746     case DISPATCH_PROPERTYGET: {
 747         jsval_t r;
 748
 749         hres = prop_get(This, prop, &r);
 750         if(SUCCEEDED(hres)) {
 751             hres = jsval_to_variant(r, pvarRes);
 752             jsval_release(r);
 753         }
 754         break;
 755     }
 756     case DISPATCH_PROPERTYPUT: {
 757         jsval_t val;
 758         DWORD i;
 759
 760         for(i=0; i < pdp->cNamedArgs; i++) {
 761             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 762                 break;
 763         }
 764
 765         if(i == pdp->cNamedArgs) {
 766             TRACE("no value to set\n");
 767             return DISP_E_PARAMNOTOPTIONAL;
 768         }
 769
 770         hres = variant_to_jsval(pdp->rgvarg+i, &val);
 771         if(FAILED(hres))
 772             return hres;
 773
 774         hres = prop_put(This, prop, val);
 775         jsval_release(val);
 776         break;
 777     }
 778     default:
 779         FIXME("Unimplemented flags %x\n", wFlags);
 780         return E_INVALIDARG;
 781     }
 782
 783     if(pei)
 784         *pei = This->ctx->ei.ei;
 785     return hres;
 786 }
 787
 788 static HRESULT delete_prop(dispex_prop_t *prop, BOOL *ret)
 789 {
 790     if(!(prop->flags & PROPF_CONFIGURABLE)) {
 791         *ret = FALSE;
 792         return S_OK;
 793     }
 794
 795     *ret = TRUE; /* FIXME: not exactly right */
 796
 797     if(prop->type == PROP_JSVAL) {
 798         jsval_release(prop->u.val);
 799         prop->type = PROP_DELETED;
 800     }
 801     if(prop->type == PROP_ACCESSOR)
 802         FIXME("not supported on accessor property\n");
 803     return S_OK;
 804 }
 805
 806 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 807 {
 808     jsdisp_t *This = impl_from_IDispatchEx(iface);
 809     dispex_prop_t *prop;
 810     BOOL b;
 811     HRESULT hres;
 812
 813     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 814
 815     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 816         FIXME("Unsupported grfdex %x\n", grfdex);
 817
 818     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 819     if(FAILED(hres))
 820         return hres;
 821     if(!prop) {
 822         TRACE("not found\n");
 823         return S_OK;
 824     }
 825
 826     return delete_prop(prop, &b);
 827 }
 828
 829 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 830 {
 831     jsdisp_t *This = impl_from_IDispatchEx(iface);
 832     dispex_prop_t *prop;
 833     BOOL b;
 834
 835     TRACE("(%p)->(%x)\n", This, id);
 836
 837     prop = get_prop(This, id);
 838     if(!prop) {
 839         WARN("invalid id\n");
 840         return DISP_E_MEMBERNOTFOUND;
 841     }
 842
 843     return delete_prop(prop, &b);
 844 }
 845
 846 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 847 {
 848     jsdisp_t *This = impl_from_IDispatchEx(iface);
 849     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 850     return E_NOTIMPL;
 851 }
 852
 853 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 854 {
 855     jsdisp_t *This = impl_from_IDispatchEx(iface);
 856     dispex_prop_t *prop;
 857
 858     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 859
 860     prop = get_prop(This, id);
 861     if(!prop || !prop->name || prop->type == PROP_DELETED)
 862         return DISP_E_MEMBERNOTFOUND;
 863
 864     *pbstrName = SysAllocString(prop->name);
 865     if(!*pbstrName)
 866         return E_OUTOFMEMORY;
 867
 868     return S_OK;
 869 }
 870
 871 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 872 {
 873     jsdisp_t *This = impl_from_IDispatchEx(iface);
 874     dispex_prop_t *iter;
 875     HRESULT hres;
 876
 877     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 878
 879     if(id == DISPID_STARTENUM) {
 880         hres = fill_protrefs(This);
 881         if(FAILED(hres))
 882             return hres;
 883     }
 884
 885     if(id+1>=0 && id+1<This->prop_cnt) {
 886         iter = &This->props[id+1];
 887     }else {
 888         *pid = DISPID_STARTENUM;
 889         return S_FALSE;
 890     }
 891
 892     while(iter < This->props + This->prop_cnt) {
 893         if(iter->name && (get_flags(This, iter) & PROPF_ENUMERABLE) && iter->type!=PROP_DELETED) {
 894             *pid = prop_to_id(This, iter);
 895             return S_OK;
 896         }
 897         iter++;
 898     }
 899
 900     *pid = DISPID_STARTENUM;
 901     return S_FALSE;
 902 }
 903
 904 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 905 {
 906     jsdisp_t *This = impl_from_IDispatchEx(iface);
 907     FIXME("(%p)->(%p)\n", This, ppunk);
 908     return E_NOTIMPL;
 909 }
 910
 911 static IDispatchExVtbl DispatchExVtbl = {
 912     DispatchEx_QueryInterface,
 913     DispatchEx_AddRef,
 914     DispatchEx_Release,
 915     DispatchEx_GetTypeInfoCount,
 916     DispatchEx_GetTypeInfo,
 917     DispatchEx_GetIDsOfNames,
 918     DispatchEx_Invoke,
 919     DispatchEx_GetDispID,
 920     DispatchEx_InvokeEx,
 921     DispatchEx_DeleteMemberByName,
 922     DispatchEx_DeleteMemberByDispID,
 923     DispatchEx_GetMemberProperties,
 924     DispatchEx_GetMemberName,
 925     DispatchEx_GetNextDispID,
 926     DispatchEx_GetNameSpaceParent
 927 };
 928
 929 jsdisp_t *as_jsdisp(IDispatch *disp)
 930 {
 931     assert(disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl);
 932     return impl_from_IDispatchEx((IDispatchEx*)disp);
 933 }
 934
 935 jsdisp_t *to_jsdisp(IDispatch *disp)
 936 {
 937     return disp->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl ? impl_from_IDispatchEx((IDispatchEx*)disp) : NULL;
 938 }
 939
 940 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 941 {
 942     TRACE("%p (%p)\n", dispex, prototype);
 943
 944     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 945     dispex->ref = 1;
 946     dispex->builtin_info = builtin_info;
 947
 948     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 949     if(!dispex->props)
 950         return E_OUTOFMEMORY;
 951
 952     dispex->prototype = prototype;
 953     if(prototype)
 954         jsdisp_addref(prototype);
 955
 956     dispex->prop_cnt = 1;
 957     if(builtin_info->value_prop.invoke || builtin_info->value_prop.getter) {
 958         dispex->props[0].type = PROP_BUILTIN;
 959         dispex->props[0].u.p = &builtin_info->value_prop;
 960     }else {
 961         dispex->props[0].type = PROP_DELETED;
 962     }
 963
 964     script_addref(ctx);
 965     dispex->ctx = ctx;
 966
 967     return S_OK;
 968 }
 969
 970 static const builtin_info_t dispex_info = {
 971     JSCLASS_NONE,
 972     {NULL, NULL, 0},
 973     0, NULL,
 974     NULL,
 975     NULL
 976 };
 977
 978 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 979 {
 980     jsdisp_t *ret;
 981     HRESULT hres;
 982
 983     ret = heap_alloc_zero(sizeof(jsdisp_t));
 984     if(!ret)
 985         return E_OUTOFMEMORY;
 986
 987     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 988     if(FAILED(hres)) {
 989         heap_free(ret);
 990         return hres;
 991     }
 992
 993     *dispex = ret;
 994     return S_OK;
 995 }
 996
 997 void jsdisp_free(jsdisp_t *obj)
 998 {
 999     dispex_prop_t *prop;
1000
1001     TRACE("(%p)\n", obj);
1002
1003     for(prop = obj->props; prop < obj->props+obj->prop_cnt; prop++) {
1004         switch(prop->type) {
1005         case PROP_JSVAL:
1006             jsval_release(prop->u.val);
1007             break;
1008         case PROP_ACCESSOR:
1009             if(prop->u.accessor.getter)
1010                 jsdisp_release(prop->u.accessor.getter);
1011             if(prop->u.accessor.setter)
1012                 jsdisp_release(prop->u.accessor.setter);
1013             break;
1014         default:
1015             break;
1016         };
1017         heap_free(prop->name);
1018     }
1019     heap_free(obj->props);
1020     script_release(obj->ctx);
1021     if(obj->prototype)
1022         jsdisp_release(obj->prototype);
1023
1024     if(obj->builtin_info->destructor)
1025         obj->builtin_info->destructor(obj);
1026     else
1027         heap_free(obj);
1028 }
1029
1030 #ifdef TRACE_REFCNT
1031
1032 jsdisp_t *jsdisp_addref(jsdisp_t *jsdisp)
1033 {
1034     ULONG ref = ++jsdisp->ref;
1035     TRACE("(%p) ref=%d\n", jsdisp, ref);
1036     return jsdisp;
1037 }
1038
1039 void jsdisp_release(jsdisp_t *jsdisp)
1040 {
1041     ULONG ref = --jsdisp->ref;
1042
1043     TRACE("(%p) ref=%d\n", jsdisp, ref);
1044
1045     if(!ref)
1046         jsdisp_free(jsdisp);
1047 }
1048
1049 #endif
1050
1051 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
1052 {
1053     jsdisp_t *prot = NULL;
1054     dispex_prop_t *prop;
1055     HRESULT hres;
1056
1057     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
1058
1059     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
1060     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
1061         jsval_t val;
1062
1063         hres = prop_get(constr, prop, &val);
1064         if(FAILED(hres)) {
1065             ERR("Could not get prototype\n");
1066             return hres;
1067         }
1068
1069         if(is_object_instance(val))
1070             prot = iface_to_jsdisp(get_object(val));
1071         jsval_release(val);
1072     }
1073
1074     hres = init_dispex(dispex, ctx, builtin_info, prot);
1075
1076     if(prot)
1077         jsdisp_release(prot);
1078     return hres;
1079 }
1080
1081 jsdisp_t *iface_to_jsdisp(IDispatch *iface)
1082 {
1083     return iface->lpVtbl == (const IDispatchVtbl*)&DispatchExVtbl
1084         ? jsdisp_addref( impl_from_IDispatchEx((IDispatchEx*)iface))
1085         : NULL;
1086 }
1087
1088 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
1089 {
1090     dispex_prop_t *prop;
1091     HRESULT hres;
1092
1093     if(flags & fdexNameEnsure)
1094         hres = ensure_prop_name(jsdisp, name, PROPF_ENUMERABLE | PROPF_CONFIGURABLE | PROPF_WRITABLE,
1095                                 &prop);
1096     else
1097         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
1098     if(FAILED(hres))
1099         return hres;
1100
1101     if(prop && prop->type!=PROP_DELETED) {
1102         *id = prop_to_id(jsdisp, prop);
1103         return S_OK;
1104     }
1105
1106     TRACE("not found %s\n", debugstr_w(name));
1107     return DISP_E_UNKNOWNNAME;
1108 }
1109
1110 HRESULT jsdisp_call_value(jsdisp_t *jsfunc, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1111 {
1112     HRESULT hres;
1113
1114     assert(!(flags & ~(DISPATCH_METHOD|DISPATCH_CONSTRUCT|DISPATCH_JSCRIPT_INTERNAL_MASK)));
1115
1116     if(is_class(jsfunc, JSCLASS_FUNCTION)) {
1117         hres = Function_invoke(jsfunc, jsthis, flags, argc, argv, r);
1118     }else {
1119         vdisp_t vdisp;
1120
1121         if(!jsfunc->builtin_info->value_prop.invoke) {
1122             WARN("Not a function\n");
1123             return throw_type_error(jsfunc->ctx, JS_E_FUNCTION_EXPECTED, NULL);
1124         }
1125
1126         set_disp(&vdisp, jsthis);
1127         flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
1128         hres = jsfunc->builtin_info->value_prop.invoke(jsfunc->ctx, &vdisp, flags, argc, argv, r);
1129         vdisp_release(&vdisp);
1130     }
1131     return hres;
1132 }
1133
1134 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1135 {
1136     dispex_prop_t *prop;
1137
1138     prop = get_prop(disp, id);
1139     if(!prop)
1140         return DISP_E_MEMBERNOTFOUND;
1141
1142     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, r, NULL);
1143 }
1144
1145 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
1146 {
1147     dispex_prop_t *prop;
1148     HRESULT hres;
1149
1150     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1151     if(FAILED(hres))
1152         return hres;
1153
1154     return invoke_prop_func(disp, to_disp(disp), prop, flags, argc, argv, r, NULL);
1155 }
1156
1157 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, unsigned argc, jsval_t *argv, jsval_t *ret)
1158 {
1159     IDispatchEx *dispex;
1160     jsdisp_t *jsdisp;
1161     VARIANT buf[6], retv;
1162     DISPPARAMS dp;
1163     unsigned i;
1164     HRESULT hres;
1165
1166     jsdisp = iface_to_jsdisp(disp);
1167     if(jsdisp) {
1168         if(flags & DISPATCH_PROPERTYPUT) {
1169             FIXME("disp_call(propput) on builtin object\n");
1170             return E_FAIL;
1171         }
1172
1173         if(ctx != jsdisp->ctx)
1174             flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
1175         hres = jsdisp_call(jsdisp, id, flags, argc, argv, ret);
1176         jsdisp_release(jsdisp);
1177         return hres;
1178     }
1179
1180     flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
1181     if(ret && argc)
1182         flags |= DISPATCH_PROPERTYGET;
1183
1184     dp.cArgs = argc;
1185
1186     if(flags & DISPATCH_PROPERTYPUT) {
1187         static DISPID propput_dispid = DISPID_PROPERTYPUT;
1188
1189         dp.cNamedArgs = 1;
1190         dp.rgdispidNamedArgs = &propput_dispid;
1191     }else {
1192         dp.cNamedArgs = 0;
1193         dp.rgdispidNamedArgs = NULL;
1194     }
1195
1196     if(argc > 6) {
1197         dp.rgvarg = heap_alloc(argc*sizeof(VARIANT));
1198         if(!dp.rgvarg)
1199             return E_OUTOFMEMORY;
1200     }else {
1201         dp.rgvarg = buf;
1202     }
1203
1204     for(i=0; i<argc; i++) {
1205         hres = jsval_to_variant(argv[i], dp.rgvarg+argc-i-1);
1206         if(FAILED(hres)) {
1207             while(i--)
1208                 VariantClear(dp.rgvarg+argc-i-1);
1209             if(dp.rgvarg != buf)
1210                 heap_free(dp.rgvarg);
1211             return hres;
1212         }
1213     }
1214
1215     V_VT(&retv) = VT_EMPTY;
1216     clear_ei(ctx);
1217     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1218     if(SUCCEEDED(hres)) {
1219         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, &dp, ret ? &retv : NULL, &ctx->ei.ei,
1220                 &ctx->jscaller->IServiceProvider_iface);
1221         IDispatchEx_Release(dispex);
1222     }else {
1223         UINT err = 0;
1224
1225         if(flags == DISPATCH_CONSTRUCT) {
1226             WARN("IDispatch cannot be constructor\n");
1227             return DISP_E_MEMBERNOTFOUND;
1228         }
1229
1230         TRACE("using IDispatch\n");
1231         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, &dp, ret ? &retv : NULL, &ctx->ei.ei, &err);
1232     }
1233
1234     for(i=0; i<argc; i++)
1235         VariantClear(dp.rgvarg+argc-i-1);
1236     if(dp.rgvarg != buf)
1237         heap_free(dp.rgvarg);
1238     if(FAILED(hres))
1239         return hres;
1240
1241     if(ret) {
1242         hres = variant_to_jsval(&retv, ret);
1243         VariantClear(&retv);
1244     }
1245
1246     return hres;
1247 }
1248
1249 HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv,
1250         jsval_t *r)
1251 {
1252     jsdisp_t *jsdisp;
1253     IDispatchEx *dispex;
1254     VARIANT buf[6], retv;
1255     DISPPARAMS dp;
1256     unsigned i;
1257     HRESULT hres;
1258
1259     assert(!(flags & ~(DISPATCH_METHOD|DISPATCH_CONSTRUCT|DISPATCH_JSCRIPT_INTERNAL_MASK)));
1260
1261     jsdisp = iface_to_jsdisp(disp);
1262     if(jsdisp) {
1263         if(ctx != jsdisp->ctx)
1264             flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
1265         hres = jsdisp_call_value(jsdisp, jsthis, flags, argc, argv, r);
1266         jsdisp_release(jsdisp);
1267         return hres;
1268     }
1269
1270     flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
1271     if(r && argc && flags == DISPATCH_METHOD)
1272         flags |= DISPATCH_PROPERTYGET;
1273
1274     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1275     if(FAILED(hres)) {
1276         TRACE("using IDispatch\n");
1277         dispex = NULL;
1278         jsthis = NULL;
1279     }
1280
1281     if(jsthis) {
1282         static DISPID this_id = DISPID_THIS;
1283
1284         dp.cArgs = argc+1;
1285         dp.cNamedArgs = 1;
1286         dp.rgdispidNamedArgs = &this_id;
1287     }else {
1288         dp.cArgs = argc;
1289         dp.cNamedArgs = 0;
1290         dp.rgdispidNamedArgs = NULL;
1291     }
1292
1293     if(dp.cArgs > sizeof(buf)/sizeof(*buf)) {
1294         dp.rgvarg = heap_alloc(dp.cArgs*sizeof(VARIANT));
1295         if(!dp.rgvarg) {
1296             if(dispex)
1297                 IDispatchEx_Release(dispex);
1298             return E_OUTOFMEMORY;
1299         }
1300     }else {
1301         dp.rgvarg = buf;
1302     }
1303
1304     for(i=0; i<argc; i++) {
1305         hres = jsval_to_variant(argv[i], dp.rgvarg+dp.cArgs-i-1);
1306         if(FAILED(hres)) {
1307             while(i--)
1308                 VariantClear(dp.rgvarg+dp.cArgs-i-1);
1309             if(dp.rgvarg != buf)
1310                 heap_free(dp.rgvarg);
1311             if(dispex)
1312                 IDispatchEx_Release(dispex);
1313             return hres;
1314         }
1315     }
1316     if(jsthis) {
1317         V_VT(dp.rgvarg) = VT_DISPATCH;
1318         V_DISPATCH(dp.rgvarg) = jsthis;
1319     }
1320
1321     V_VT(&retv) = VT_EMPTY;
1322     clear_ei(ctx);
1323     if(dispex) {
1324         hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, ctx->lcid, flags, &dp, r ? &retv : NULL, &ctx->ei.ei,
1325                 &ctx->jscaller->IServiceProvider_iface);
1326         IDispatchEx_Release(dispex);
1327     }else {
1328         UINT err = 0;
1329
1330         if(flags == DISPATCH_CONSTRUCT) {
1331             WARN("IDispatch cannot be constructor\n");
1332             return DISP_E_MEMBERNOTFOUND;
1333         }
1334
1335         hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, ctx->lcid, flags, &dp, r ? &retv : NULL, &ctx->ei.ei, &err);
1336     }
1337
1338     for(i=0; i<argc; i++)
1339         VariantClear(dp.rgvarg+dp.cArgs-i-1);
1340     if(dp.rgvarg != buf)
1341         heap_free(dp.rgvarg);
1342     if(FAILED(hres))
1343         return hres;
1344
1345     if(!r)
1346         return S_OK;
1347
1348     hres = variant_to_jsval(&retv, r);
1349     VariantClear(&retv);
1350     return hres;
1351 }
1352
1353 HRESULT jsdisp_propput(jsdisp_t *obj, const WCHAR *name, DWORD flags, jsval_t val)
1354 {
1355     dispex_prop_t *prop;
1356     HRESULT hres;
1357
1358     hres = ensure_prop_name(obj, name, flags, &prop);
1359     if(FAILED(hres))
1360         return hres;
1361
1362     return prop_put(obj, prop, val);
1363 }
1364
1365 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, jsval_t val)
1366 {
1367     return jsdisp_propput(obj, name, PROPF_ENUMERABLE | PROPF_CONFIGURABLE | PROPF_WRITABLE, val);
1368 }
1369
1370 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, jsval_t val)
1371 {
1372     WCHAR buf[12];
1373
1374     static const WCHAR formatW[] = {'%','d',0};
1375
1376     sprintfW(buf, formatW, idx);
1377     return jsdisp_propput_name(obj, buf, val);
1378 }
1379
1380 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, jsval_t val)
1381 {
1382     jsdisp_t *jsdisp;
1383     HRESULT hres;
1384
1385     jsdisp = iface_to_jsdisp(disp);
1386     if(jsdisp) {
1387         dispex_prop_t *prop;
1388
1389         prop = get_prop(jsdisp, id);
1390         if(prop)
1391             hres = prop_put(jsdisp, prop, val);
1392         else
1393             hres = DISP_E_MEMBERNOTFOUND;
1394
1395         jsdisp_release(jsdisp);
1396     }else {
1397         DISPID dispid = DISPID_PROPERTYPUT;
1398         DWORD flags = DISPATCH_PROPERTYPUT;
1399         VARIANT var;
1400         DISPPARAMS dp  = {&var, &dispid, 1, 1};
1401         IDispatchEx *dispex;
1402
1403         hres = jsval_to_variant(val, &var);
1404         if(FAILED(hres))
1405             return hres;
1406
1407         if(V_VT(&var) == VT_DISPATCH)
1408             flags |= DISPATCH_PROPERTYPUTREF;
1409
1410         clear_ei(ctx);
1411         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1412         if(SUCCEEDED(hres)) {
1413             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, &dp, NULL, &ctx->ei.ei,
1414                     &ctx->jscaller->IServiceProvider_iface);
1415             IDispatchEx_Release(dispex);
1416         }else {
1417             ULONG err = 0;
1418
1419             TRACE("using IDispatch\n");
1420             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, &dp, NULL, &ctx->ei.ei, &err);
1421         }
1422
1423         VariantClear(&var);
1424     }
1425
1426     return hres;
1427 }
1428
1429 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, jsval_t *val)
1430 {
1431     dispex_prop_t *prop;
1432     HRESULT hres;
1433
1434     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1435     if(FAILED(hres))
1436         return hres;
1437
1438     if(!prop || prop->type==PROP_DELETED) {
1439         *val = jsval_undefined();
1440         return S_OK;
1441     }
1442
1443     return prop_get(obj, prop, val);
1444 }
1445
1446 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, jsval_t *r)
1447 {
1448     WCHAR name[12];
1449     dispex_prop_t *prop;
1450     HRESULT hres;
1451
1452     static const WCHAR formatW[] = {'%','d',0};
1453
1454     sprintfW(name, formatW, idx);
1455
1456     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1457     if(FAILED(hres))
1458         return hres;
1459
1460     if(!prop || prop->type==PROP_DELETED) {
1461         *r = jsval_undefined();
1462         return DISP_E_UNKNOWNNAME;
1463     }
1464
1465     return prop_get(obj, prop, r);
1466 }
1467
1468 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, jsval_t *val)
1469 {
1470     dispex_prop_t *prop;
1471
1472     prop = get_prop(jsdisp, id);
1473     if(!prop)
1474         return DISP_E_MEMBERNOTFOUND;
1475
1476     return prop_get(jsdisp, prop, val);
1477 }
1478
1479 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, jsval_t *val)
1480 {
1481     DISPPARAMS dp  = {NULL,NULL,0,0};
1482     IDispatchEx *dispex;
1483     jsdisp_t *jsdisp;
1484     VARIANT var;
1485     HRESULT hres;
1486
1487     jsdisp = iface_to_jsdisp(disp);
1488     if(jsdisp) {
1489         hres = jsdisp_propget(jsdisp, id, val);
1490         jsdisp_release(jsdisp);
1491         return hres;
1492     }
1493
1494     V_VT(&var) = VT_EMPTY;
1495     clear_ei(ctx);
1496     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1497     if(SUCCEEDED(hres)) {
1498         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, &var, &ctx->ei.ei,
1499                 &ctx->jscaller->IServiceProvider_iface);
1500         IDispatchEx_Release(dispex);
1501     }else {
1502         ULONG err = 0;
1503
1504         TRACE("using IDispatch\n");
1505         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, &var, &ctx->ei.ei, &err);
1506     }
1507     if(FAILED(hres))
1508         return hres;
1509
1510     hres = variant_to_jsval(&var, val);
1511     VariantClear(&var);
1512     return hres;
1513 }
1514
1515 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1516 {
1517     static const WCHAR formatW[] = {'%','d',0};
1518     WCHAR buf[12];
1519     dispex_prop_t *prop;
1520     BOOL b;
1521     HRESULT hres;
1522
1523     sprintfW(buf, formatW, idx);
1524
1525     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1526     if(FAILED(hres) || !prop)
1527         return hres;
1528
1529     return delete_prop(prop, &b);
1530 }
1531
1532 HRESULT disp_delete(IDispatch *disp, DISPID id, BOOL *ret)
1533 {
1534     IDispatchEx *dispex;
1535     jsdisp_t *jsdisp;
1536     HRESULT hres;
1537
1538     jsdisp = iface_to_jsdisp(disp);
1539     if(jsdisp) {
1540         dispex_prop_t *prop;
1541
1542         prop = get_prop(jsdisp, id);
1543         if(prop)
1544             hres = delete_prop(prop, ret);
1545         else
1546             hres = DISP_E_MEMBERNOTFOUND;
1547
1548         jsdisp_release(jsdisp);
1549         return hres;
1550     }
1551
1552     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1553     if(FAILED(hres)) {
1554         *ret = FALSE;
1555         return S_OK;
1556     }
1557
1558     hres = IDispatchEx_DeleteMemberByDispID(dispex, id);
1559     IDispatchEx_Release(dispex);
1560     if(FAILED(hres))
1561         return hres;
1562
1563     *ret = hres == S_OK;
1564     return S_OK;
1565 }
1566
1567 HRESULT disp_delete_name(script_ctx_t *ctx, IDispatch *disp, jsstr_t *name, BOOL *ret)
1568 {
1569     IDispatchEx *dispex;
1570     jsdisp_t *jsdisp;
1571     BSTR bstr;
1572     HRESULT hres;
1573
1574     jsdisp = iface_to_jsdisp(disp);
1575     if(jsdisp) {
1576         dispex_prop_t *prop;
1577         const WCHAR *ptr;
1578
1579         ptr = jsstr_flatten(name);
1580         if(!ptr) {
1581             jsdisp_release(jsdisp);
1582             return E_OUTOFMEMORY;
1583         }
1584
1585         hres = find_prop_name(jsdisp, string_hash(ptr), ptr, &prop);
1586         if(prop) {
1587             hres = delete_prop(prop, ret);
1588         }else {
1589             *ret = TRUE;
1590             hres = S_OK;
1591         }
1592
1593         jsdisp_release(jsdisp);
1594         return hres;
1595     }
1596
1597     bstr = SysAllocStringLen(NULL, jsstr_length(name));
1598     if(!bstr)
1599         return E_OUTOFMEMORY;
1600     jsstr_flush(name, bstr);
1601
1602     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1603     if(SUCCEEDED(hres)) {
1604         hres = IDispatchEx_DeleteMemberByName(dispex, bstr, make_grfdex(ctx, fdexNameCaseSensitive));
1605         if(SUCCEEDED(hres))
1606             *ret = hres == S_OK;
1607         IDispatchEx_Release(dispex);
1608     }else {
1609         DISPID id;
1610
1611         hres = IDispatch_GetIDsOfNames(disp, &IID_NULL, &bstr, 1, 0, &id);
1612         if(SUCCEEDED(hres)) {
1613             /* Property exists and we can't delete it from pure IDispatch interface, so return false. */
1614             *ret = FALSE;
1615         }else if(hres == DISP_E_UNKNOWNNAME) {
1616             /* Property doesn't exist, so nothing to delete */
1617             *ret = TRUE;
1618             hres = S_OK;
1619         }
1620     }
1621
1622     SysFreeString(bstr);
1623     return hres;
1624 }
1625
1626 HRESULT jsdisp_get_own_property(jsdisp_t *obj, const WCHAR *name, BOOL flags_only,
1627                                 property_desc_t *desc)
1628 {
1629     dispex_prop_t *prop;
1630     HRESULT hres;
1631
1632     hres = find_prop_name(obj, string_hash(name), name, &prop);
1633     if(FAILED(hres))
1634         return hres;
1635
1636     if(!prop)
1637         return DISP_E_UNKNOWNNAME;
1638
1639     memset(desc, 0, sizeof(*desc));
1640
1641     switch(prop->type) {
1642     case PROP_BUILTIN:
1643     case PROP_JSVAL:
1644         desc->mask |= PROPF_WRITABLE;
1645         desc->explicit_value = TRUE;
1646         if(!flags_only) {
1647             hres = prop_get(obj, prop, &desc->value);
1648             if(FAILED(hres))
1649                 return hres;
1650         }
1651         break;
1652     case PROP_ACCESSOR:
1653         desc->explicit_getter = desc->explicit_setter = TRUE;
1654         if(!flags_only) {
1655             desc->getter = prop->u.accessor.getter
1656                 ? jsdisp_addref(prop->u.accessor.getter) : NULL;
1657             desc->setter = prop->u.accessor.setter
1658                 ? jsdisp_addref(prop->u.accessor.setter) : NULL;
1659         }
1660         break;
1661     default:
1662         return DISP_E_UNKNOWNNAME;
1663     }
1664
1665     desc->flags = prop->flags & (PROPF_ENUMERABLE | PROPF_WRITABLE | PROPF_CONFIGURABLE);
1666     desc->mask |= PROPF_ENUMERABLE | PROPF_CONFIGURABLE;
1667     return S_OK;
1668 }
1669
1670 HRESULT jsdisp_define_property(jsdisp_t *obj, const WCHAR *name, property_desc_t *desc)
1671 {
1672     dispex_prop_t *prop;
1673     HRESULT hres;
1674
1675     hres = find_prop_name(obj, string_hash(name), name, &prop);
1676     if(FAILED(hres))
1677         return hres;
1678
1679     if(!prop && !(prop = alloc_prop(obj, name, PROP_DELETED, 0)))
1680        return E_OUTOFMEMORY;
1681
1682     if(prop->type == PROP_DELETED || prop->type == PROP_PROTREF) {
1683         prop->flags = desc->flags;
1684         if(desc->explicit_getter || desc->explicit_setter) {
1685             prop->type = PROP_ACCESSOR;
1686             prop->u.accessor.getter = desc->getter ? jsdisp_addref(desc->getter) : NULL;
1687             prop->u.accessor.setter = desc->setter ? jsdisp_addref(desc->setter) : NULL;
1688             TRACE("%s = accessor { get: %p set: %p }\n", debugstr_w(name),
1689                   prop->u.accessor.getter, prop->u.accessor.setter);
1690         }else {
1691             prop->type = PROP_JSVAL;
1692             if(desc->explicit_value) {
1693                 hres = jsval_copy(desc->value, &prop->u.val);
1694                 if(FAILED(hres))
1695                     return hres;
1696             }else {
1697                 prop->u.val = jsval_undefined();
1698             }
1699             TRACE("%s = %s\n", debugstr_w(name), debugstr_jsval(prop->u.val));
1700         }
1701         return S_OK;
1702     }
1703
1704     TRACE("existing prop %s prop flags %x desc flags %x desc mask %x\n", debugstr_w(name),
1705           prop->flags, desc->flags, desc->mask);
1706
1707     if(!(prop->flags & PROPF_CONFIGURABLE)) {
1708         if(((desc->mask & PROPF_CONFIGURABLE) && (desc->flags & PROPF_CONFIGURABLE))
1709            || ((desc->mask & PROPF_ENUMERABLE)
1710                && ((desc->flags & PROPF_ENUMERABLE) != (prop->flags & PROPF_ENUMERABLE))))
1711             return throw_type_error(obj->ctx, JS_E_NONCONFIGURABLE_REDEFINED, name);
1712     }
1713
1714     if(desc->explicit_value || (desc->mask & PROPF_WRITABLE)) {
1715         if(prop->type == PROP_ACCESSOR) {
1716             if(!(prop->flags & PROPF_CONFIGURABLE))
1717                 return throw_type_error(obj->ctx, JS_E_NONCONFIGURABLE_REDEFINED, name);
1718             if(prop->u.accessor.getter)
1719                 jsdisp_release(prop->u.accessor.getter);
1720             if(prop->u.accessor.setter)
1721                 jsdisp_release(prop->u.accessor.setter);
1722
1723             prop->type = PROP_JSVAL;
1724             hres = jsval_copy(desc->value, &prop->u.val);
1725             if(FAILED(hres)) {
1726                 prop->u.val = jsval_undefined();
1727                 return hres;
1728             }
1729         }else {
1730             if(!(prop->flags & PROPF_CONFIGURABLE) && !(prop->flags & PROPF_WRITABLE)) {
1731                 if((desc->mask & PROPF_WRITABLE) && (desc->flags & PROPF_WRITABLE))
1732                     return throw_type_error(obj->ctx, JS_E_NONWRITABLE_MODIFIED, name);
1733                 if(desc->explicit_value) {
1734                     if(prop->type == PROP_JSVAL) {
1735                         BOOL eq;
1736                         hres = jsval_strict_equal(desc->value, prop->u.val, &eq);
1737                         if(FAILED(hres))
1738                             return hres;
1739                         if(!eq)
1740                             return throw_type_error(obj->ctx, JS_E_NONWRITABLE_MODIFIED, name);
1741                     }else {
1742                         FIXME("redefinition of property type %d\n", prop->type);
1743                     }
1744                 }
1745             }
1746             if(desc->explicit_value) {
1747                 if(prop->type == PROP_JSVAL)
1748                     jsval_release(prop->u.val);
1749                 else
1750                     prop->type = PROP_JSVAL;
1751                 hres = jsval_copy(desc->value, &prop->u.val);
1752                 if(FAILED(hres)) {
1753                     prop->u.val = jsval_undefined();
1754                     return hres;
1755                 }
1756             }
1757         }
1758     }else if(desc->explicit_getter || desc->explicit_setter) {
1759         if(prop->type != PROP_ACCESSOR) {
1760             if(!(prop->flags & PROPF_CONFIGURABLE))
1761                 return throw_type_error(obj->ctx, JS_E_NONCONFIGURABLE_REDEFINED, name);
1762             if(prop->type == PROP_JSVAL)
1763                 jsval_release(prop->u.val);
1764             prop->type = PROP_ACCESSOR;
1765             prop->u.accessor.getter = prop->u.accessor.setter = NULL;
1766         }else if(!(prop->flags & PROPF_CONFIGURABLE)) {
1767             if((desc->explicit_getter && desc->getter != prop->u.accessor.getter)
1768                || (desc->explicit_setter && desc->setter != prop->u.accessor.setter))
1769                 return throw_type_error(obj->ctx, JS_E_NONCONFIGURABLE_REDEFINED, name);
1770         }
1771
1772         if(desc->explicit_getter) {
1773             if(prop->u.accessor.getter) {
1774                 jsdisp_release(prop->u.accessor.getter);
1775                 prop->u.accessor.getter = NULL;
1776             }
1777             if(desc->getter)
1778                 prop->u.accessor.getter = jsdisp_addref(desc->getter);
1779         }
1780         if(desc->explicit_setter) {
1781             if(prop->u.accessor.setter) {
1782                 jsdisp_release(prop->u.accessor.setter);
1783                 prop->u.accessor.setter = NULL;
1784             }
1785             if(desc->setter)
1786                 prop->u.accessor.setter = jsdisp_addref(desc->setter);
1787         }
1788     }
1789
1790     prop->flags = (prop->flags & ~desc->mask) | (desc->flags & desc->mask);
1791     return S_OK;
1792 }
1793
1794 HRESULT jsdisp_define_data_property(jsdisp_t *obj, const WCHAR *name, unsigned flags, jsval_t value)
1795 {
1796     property_desc_t prop_desc = { flags, flags, TRUE, value };
1797     return jsdisp_define_property(obj, name, &prop_desc);
1798 }