public bool IsDefined(IType attributeType)
{
ExternalType type = attributeType as ExternalType;
if (null == type)
{
return(false);
}
return(MetadataUtil.IsAttributeDefined(_type, type.ActualType));
}
public virtual bool IsSubclassOf(IType other)
{
ExternalType external = other as ExternalType;
if (null == external /*|| _typeSystemServices.VoidType == other*/)
{
return(false);
}
return(_type.IsSubclassOf(external._type) ||
(external.IsInterface && external._type.IsAssignableFrom(_type))
);
}
public virtual bool IsAssignableFrom(IType other)
{
ExternalType external = other as ExternalType;
if (null == external)
{
if (EntityType.Null == other.EntityType)
{
return(!IsValueType);
}
return(other.IsSubclassOf(this));
}
if (other == _provider.Map(Types.Void))
{
return(false);
}
return(_type.IsAssignableFrom(external._type));
}