package Values.Nulls is
type Null_Value is new Value with private;
function Create_Null return Value_Ptr;
function Clone
( | this | : access Null_Value ) return Value_Ptr'Class; |
function Compare
( | this | : Null_Value; |
other | : Value'Class ) return Integer; |
function Get_Type
( | this | : Null_Value ) return Value_Type; |
function Image
( | this | : Null_Value ) return String; |