public override bool Delete(EcmaPropertyKey propertyKey)
{
RuntimeObject target = ThrowIfProxyRevoked();
RuntimeObject trap = handler.GetMethod(WellKnownProperty.DeleteProperty);
if (trap == null)
{
return(target.Delete(propertyKey));
}
if (!(bool)trap.Call(handler, target, propertyKey.ToValue()))
{
return(false);
}
EcmaPropertyDescriptor descriptor = target.GetOwnProperty(propertyKey);
if (descriptor == null)
{
return(true);
}
if (!descriptor.Configurable)
{
throw new EcmaTypeErrorException(InternalString.Error.InvalidTrapResult);
}
return(true);
}
public static bool DeletePropertyOrThrow(this RuntimeObject obj, EcmaPropertyKey propertyKey)
{
Guard.ArgumentNotNull(obj, "obj");
if (!obj.Delete(propertyKey))
{
throw new EcmaTypeErrorException(InternalString.Error.DeletePropertyThrow);
}
return(true);
}