/// <summary>
/// Gets a <see cref="ComObject"/> that wraps the runtime-callable-wrapper, or creates one if none currently exists.
/// </summary>
/// <returns></returns>
public static ComObject ObjectToComObject(object rcw)
{
Debug.Assert(ComBinder.IsComObject(rcw));
object data = Marshal.GetComObjectData(rcw, s_comObjectInfoKey);
if (data != null)
{
return((ComObject)data);
}
lock (s_comObjectInfoKey)
{
data = Marshal.GetComObjectData(rcw, s_comObjectInfoKey);
if (data != null)
{
return((ComObject)data);
}
ComObject comObjectInfo = CreateComObject(rcw);
if (!Marshal.SetComObjectData(rcw, s_comObjectInfoKey, comObjectInfo))
{
throw Error.SetComObjectDataFailed();
}
return(comObjectInfo);
}
}
public override DynamicMetaObject FallbackInvoke(DynamicMetaObject target, DynamicMetaObject[] args, DynamicMetaObject errorSuggestion)
{
if (ComBinder.TryBindInvoke(this, target, args, out DynamicMetaObject res))
{
return(res);
}
return(errorSuggestion ?? new DynamicMetaObject(
Expression.Throw(
Expression.New(
typeof(NotSupportedException).GetConstructor(new[] { typeof(string) }),
Expression.Constant(ParserStrings.CannotCall)
),
typeof(object)
),
target.Restrictions.Merge(BindingRestrictions.Combine(args))
));
}
internal ComObject(object rcw)
{
Debug.Assert(ComBinder.IsComObject(rcw));
RuntimeCallableWrapper = rcw;
}