dlls/jscript/object.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 "jscript.h"
  20
  21 #include "wine/debug.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  24
  25 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  26 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  27 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
  28 static const WCHAR hasOwnPropertyW[] = {'h','a','s','O','w','n','P','r','o','p','e','r','t','y',0};
  29 static const WCHAR propertyIsEnumerableW[] =
  30     {'p','r','o','p','e','r','t','y','I','s','E','n','u','m','e','r','a','b','l','e',0};
  31 static const WCHAR isPrototypeOfW[] = {'i','s','P','r','o','t','o','t','y','p','e','O','f',0};
  32
  33 static const WCHAR default_valueW[] = {'[','o','b','j','e','c','t',' ','O','b','j','e','c','t',']',0};
  34
  35 static HRESULT Object_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  36         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  37 {
  38     static const WCHAR formatW[] = {'[','o','b','j','e','c','t',' ','%','s',']',0};
  39
  40     static const WCHAR arrayW[] = {'A','r','r','a','y',0};
  41     static const WCHAR booleanW[] = {'B','o','o','l','e','a','n',0};
  42     static const WCHAR dateW[] = {'D','a','t','e',0};
  43     static const WCHAR errorW[] = {'E','r','r','o','r',0};
  44     static const WCHAR functionW[] = {'F','u','n','c','t','i','o','n',0};
  45     static const WCHAR mathW[] = {'M','a','t','h',0};
  46     static const WCHAR numberW[] = {'N','u','m','b','e','r',0};
  47     static const WCHAR objectW[] = {'O','b','j','e','c','t',0};
  48     static const WCHAR regexpW[] = {'R','e','g','E','x','p',0};
  49     static const WCHAR stringW[] = {'S','t','r','i','n','g',0};
  50     /* Keep in sync with jsclass_t enum */
  51     static const WCHAR *names[] = {NULL, arrayW, booleanW, dateW, errorW,
  52         functionW, NULL, mathW, numberW, objectW, regexpW, stringW, objectW};
  53
  54     TRACE("\n");
  55
  56     if(names[dispex->builtin_info->class] == NULL) {
  57         ERR("dispex->builtin_info->class = %d\n",
  58                 dispex->builtin_info->class);
  59         return E_FAIL;
  60     }
  61
  62     if(retv) {
  63         V_VT(retv) = VT_BSTR;
  64         V_BSTR(retv) = SysAllocStringLen(NULL, 9+strlenW(names[dispex->builtin_info->class]));
  65         if(!V_BSTR(retv))
  66             return E_OUTOFMEMORY;
  67
  68         sprintfW(V_BSTR(retv), formatW, names[dispex->builtin_info->class]);
  69     }
  70
  71     return S_OK;
  72 }
  73
  74 static HRESULT Object_toLocaleString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  75         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  76 {
  77     DISPPARAMS params = {NULL, NULL, 0, 0};
  78
  79     TRACE("\n");
  80
  81     return jsdisp_call_name(dispex, toStringW, lcid, DISPATCH_METHOD, &params, retv, ei, sp);
  82 }
  83
  84 static HRESULT Object_valueOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  85         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  86 {
  87     TRACE("\n");
  88
  89     if(retv) {
  90         IDispatchEx_AddRef(_IDispatchEx_(dispex));
  91
  92         V_VT(retv) = VT_DISPATCH;
  93         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(dispex);
  94     }
  95
  96     return S_OK;
  97 }
  98
  99 static HRESULT Object_hasOwnProperty(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 100         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 101 {
 102     FIXME("\n");
 103     return E_NOTIMPL;
 104 }
 105
 106 static HRESULT Object_propertyIsEnumerable(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 107         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 108 {
 109     FIXME("\n");
 110     return E_NOTIMPL;
 111 }
 112
 113 static HRESULT Object_isPrototypeOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 114         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 115 {
 116     FIXME("\n");
 117     return E_NOTIMPL;
 118 }
 119
 120 static HRESULT Object_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 121         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 122 {
 123     TRACE("\n");
 124
 125     switch(flags) {
 126     case INVOKE_FUNC:
 127         return throw_type_error(dispex->ctx, ei, IDS_NOT_FUNC, NULL);
 128     case DISPATCH_PROPERTYGET:
 129         V_VT(retv) = VT_BSTR;
 130         V_BSTR(retv) = SysAllocString(default_valueW);
 131         if(!V_BSTR(retv))
 132             return E_OUTOFMEMORY;
 133         break;
 134     default:
 135         FIXME("unimplemented flags %x\n", flags);
 136         return E_NOTIMPL;
 137     }
 138
 139     return S_OK;
 140 }
 141
 142 static void Object_destructor(DispatchEx *dispex)
 143 {
 144     heap_free(dispex);
 145 }
 146
 147 static const builtin_prop_t Object_props[] = {
 148     {hasOwnPropertyW,        Object_hasOwnProperty,        PROPF_METHOD|1},
 149     {isPrototypeOfW,         Object_isPrototypeOf,         PROPF_METHOD|1},
 150     {propertyIsEnumerableW,  Object_propertyIsEnumerable,  PROPF_METHOD|1},
 151     {toLocaleStringW,        Object_toLocaleString,        PROPF_METHOD},
 152     {toStringW,              Object_toString,              PROPF_METHOD},
 153     {valueOfW,               Object_valueOf,               PROPF_METHOD}
 154 };
 155
 156 static const builtin_info_t Object_info = {
 157     JSCLASS_OBJECT,
 158     {NULL, Object_value, 0},
 159     sizeof(Object_props)/sizeof(*Object_props),
 160     Object_props,
 161     Object_destructor,
 162     NULL
 163 };
 164
 165 static HRESULT ObjectConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 166         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 167 {
 168     HRESULT hres;
 169
 170     TRACE("\n");
 171
 172     switch(flags) {
 173     case DISPATCH_METHOD:
 174         if(arg_cnt(dp)) {
 175             VARIANT *arg = get_arg(dp,0);
 176
 177             if(V_VT(arg) != VT_EMPTY && V_VT(arg) != VT_NULL) {
 178                 IDispatch *disp;
 179
 180                 hres = to_object(dispex->ctx, arg, &disp);
 181                 if(FAILED(hres))
 182                     return hres;
 183
 184                 if(retv) {
 185                     V_VT(retv) = VT_DISPATCH;
 186                     V_DISPATCH(retv) = disp;
 187                 }else {
 188                     IDispatch_Release(disp);
 189                 }
 190                 return S_OK;
 191             }
 192         }
 193         /* fall through */
 194     case DISPATCH_CONSTRUCT: {
 195         DispatchEx *obj;
 196
 197         hres = create_object(dispex->ctx, NULL, &obj);
 198         if(FAILED(hres))
 199             return hres;
 200
 201         V_VT(retv) = VT_DISPATCH;
 202         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
 203         break;
 204     }
 205
 206     default:
 207         FIXME("unimplemented flags: %x\n", flags);
 208         return E_NOTIMPL;
 209     }
 210
 211     return S_OK;
 212 }
 213
 214 HRESULT create_object_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
 215 {
 216     static const WCHAR ObjectW[] = {'O','b','j','e','c','t',0};
 217
 218     return create_builtin_function(ctx, ObjectConstr_value, ObjectW, NULL, PROPF_CONSTR,
 219             object_prototype, ret);
 220 }
 221
 222 HRESULT create_object_prototype(script_ctx_t *ctx, DispatchEx **ret)
 223 {
 224     return create_dispex(ctx, &Object_info, NULL, ret);
 225 }
 226
 227 HRESULT create_object(script_ctx_t *ctx, DispatchEx *constr, DispatchEx **ret)
 228 {
 229     DispatchEx *object;
 230     HRESULT hres;
 231
 232     object = heap_alloc_zero(sizeof(DispatchEx));
 233     if(!object)
 234         return E_OUTOFMEMORY;
 235
 236     hres = init_dispex_from_constr(object, ctx, &Object_info, constr ? constr : ctx->object_constr);
 237     if(FAILED(hres)) {
 238         heap_free(object);
 239         return hres;
 240     }
 241
 242     *ret = object;
 243     return S_OK;
 244 }