XPCDispJSPropertyInfo::XPCDispJSPropertyInfo(JSContext* cx, PRUint32 memid,
JSObject* obj, jsval val) :
mPropertyType(INVALID), mMemID(memid)
{
PRUint32 len;
jschar * chars = xpc_JSString2String(cx, val, &len);
if(!chars)
return;
mName = nsString(reinterpret_cast<const PRUnichar *>(chars), len);
JSBool found;
uintN attr;
// Get the property's attributes, and make sure it's found and enumerable
if(!JS_GetUCPropertyAttributes(cx, obj, chars, len, &attr, &found) ||
!found || (attr & JSPROP_ENUMERATE) == 0)
return;
// Retrieve the property
if(!chars || !JS_GetUCProperty(cx, obj, chars, len, &mProperty) ||
JSVAL_IS_NULL(mProperty))
return;
// If this is a function
if(JSVAL_IS_OBJECT(mProperty) &&
JS_ObjectIsFunction(cx, JSVAL_TO_OBJECT(mProperty)))
{
mPropertyType = FUNCTION;
JSObject * funcObj = JSVAL_TO_OBJECT(mProperty);
JSIdArray * funcObjArray = JS_Enumerate(cx, funcObj);
if(funcObjArray)
{
mParamCount = funcObjArray->length;
}
}
else // It's a property
{
mParamCount = 0;
if((attr & JSPROP_READONLY) != 0)
{
mPropertyType = READONLY_PROPERTY;
}
else
{
mPropertyType = PROPERTY;
}
}
}
JSDProperty*
jsd_GetValueProperty(JSDContext* jsdc, JSDValue* jsdval, JSString* name)
{
JSContext* cx = jsdc->dumbContext;
JSDProperty* jsdprop;
JSDProperty* iter = NULL;
JSObject* obj;
uintN attrs = 0;
JSBool found;
JSPropertyDesc pd;
const jschar * nameChars;
size_t nameLen;
jsval val, nameval;
jsid nameid;
JSCrossCompartmentCall *call = NULL;
if(!jsd_IsValueObject(jsdc, jsdval))
return NULL;
/* If we already have the prop, then return it */
while(NULL != (jsdprop = jsd_IterateProperties(jsdc, jsdval, &iter)))
{
JSString* propName = jsd_GetValueString(jsdc, jsdprop->name);
if(propName) {
intN result;
if (JS_CompareStrings(cx, propName, name, &result) && !result)
return jsdprop;
}
JSD_DropProperty(jsdc, jsdprop);
}
/* Not found in property list, look it up explicitly */
if(!(obj = JSVAL_TO_OBJECT(jsdval->val)))
return NULL;
if (!(nameChars = JS_GetStringCharsZAndLength(cx, name, &nameLen)))
return NULL;
JS_BeginRequest(cx);
call = JS_EnterCrossCompartmentCall(cx, obj);
if(!call) {
JS_EndRequest(cx);
return NULL;
}
JS_GetUCPropertyAttributes(cx, obj, nameChars, nameLen, &attrs, &found);
if (!found)
{
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return NULL;
}
JS_ClearPendingException(cx);
if(!JS_GetUCProperty(cx, obj, nameChars, nameLen, &val))
{
if (JS_IsExceptionPending(cx))
{
if (!JS_GetPendingException(cx, &pd.value))
{
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return NULL;
}
pd.flags = JSPD_EXCEPTION;
}
else
{
pd.flags = JSPD_ERROR;
pd.value = JSVAL_VOID;
}
}
else
{
pd.value = val;
}
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
nameval = STRING_TO_JSVAL(name);
if (!JS_ValueToId(cx, nameval, &nameid) ||
!JS_IdToValue(cx, nameid, &pd.id)) {
return NULL;
}
pd.slot = pd.spare = 0;
pd.alias = JSVAL_NULL;
pd.flags |= (attrs & JSPROP_ENUMERATE) ? JSPD_ENUMERATE : 0
| (attrs & JSPROP_READONLY) ? JSPD_READONLY : 0
| (attrs & JSPROP_PERMANENT) ? JSPD_PERMANENT : 0;
return _newProperty(jsdc, &pd, JSDPD_HINTED);
}
