DataMuseum.dk Presents historical artifacts from the history of: Rational R1000/400

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⟦6e1156eda⟧ Ada Source

    Length: 6144 (0x1800)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body T_Value, seg_047ca3

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

with Unchecked_Deallocation, Text_Io;
package body T_Value is


    procedure Free is new Unchecked_Deallocation (String, String_Access);

--Creation

    procedure New_Value (V : out T_Value.Object) is
    begin
        V := (Kind => Undefined_Value);
    end New_Value;

--Liberation
    procedure Dispose (V : in out Object) is
    begin
        if V.Kind = String_Value then
            Free (V.The_String);
        end if;
        V := (Kind => Undefined_Value);
    end Dispose;

--Access
    function Kind_Of_Value (V : in Object) return Kind_Of_Values is
    begin
        return (V.Kind);
    end Kind_Of_Value;



    function Get (V : in T_Value.Object) return Integer is
    begin
        if (V.Kind = Integer_Value) then
            return (V.The_Integer);
        else
            raise Error_Integer_Value;
        end if;
    end Get;


    function Get (V : in T_Value.Object) return Boolean is
    begin
        if (V.Kind = Boolean_Value) then
            return (V.The_Boolean);
        else
            raise Error_Boolean_Value;
        end if;
    end Get;

    function Get (V : in T_Value.Object) return String is
    begin
        if (V.Kind = String_Value) then
            return (V.The_String.all);
        else
            raise Error_String_Value;
        end if;
    end Get;

    function Equal (V1 : in Object; V2 : in Object) return Boolean is
    begin
        if (V1.Kind = V2.Kind) then
            case V1.Kind is
                when Integer_Value =>
                    return (V1.The_Integer = V2.The_Integer);
                when Boolean_Value =>
                    return (V1.The_Boolean = V2.The_Boolean);
                when String_Value =>
                    return (V1.The_String.all = V2.The_String.all);
                when Undefined_Value =>
                    return True;
            end case;
        else
            return False;
        end if;
    exception
        when Constraint_Error =>
            raise Error_Equal_Value;
    end Equal;

    function Image (V : in T_Value.Object) return String is
    begin
        case V.Kind is
            when Integer_Value =>
                return (Integer'Image (V.The_Integer));
            when Boolean_Value =>
                return (Boolean'Image (V.The_Boolean));
            when String_Value =>
                return (V.The_String.all);
            when Undefined_Value =>
                return ("Undefined Value");
        end case;
    end Image;

    procedure Value_To_File (V : in T_Value.Object; F : V_File) is
    begin
--    Text_IO.Put(F,T_Value_Image(V));
        Text_Io.Put_Line ("Function not yet implemented");
    end Value_To_File;

-- Modification
    procedure Undefine (V : in out Object) is
    begin
        Dispose (V);
        New_Value (V);
    end Undefine;

    procedure Set (V : in out Object; I : in Integer) is
    begin
        Undefine (V);
        V := (Kind => Integer_Value, The_Integer => I);
    exception
        when Constraint_Error =>
            raise Error_Integer_Value;
    end Set;


    procedure Set (V : in out Object; S : in String) is
        Ptr : String_Access;
    begin
        Undefine (V);
        if not (S'Length > Max_Value_String) then
            Ptr := new String (1 .. S'Length);
            V := (Kind => String_Value, The_String => Ptr);
            V.The_String.all := S;
        else
            raise Error_String_Value;
        end if;

    exception
        when Constraint_Error =>
            raise Error_String_Value;
    end Set;


    procedure Set (V : in out Object; B : in Boolean) is
    begin
        Undefine (V);
        V := (Kind => Boolean_Value, The_Boolean => B);
    exception
        when Constraint_Error =>
            raise Error_Boolean_Value;
    end Set;


    procedure Copy (To_Value : in out T_Value.Object;
                    The_Value : in T_Value.Object) is
    begin
        if (The_Value.Kind = String_Value) then
            Set (To_Value, The_Value.The_String.all);
        else
            Undefine (To_Value);
            To_Value := The_Value;
        end if;
    end Copy;

    procedure Set_Value_Using_File (V : in out Object; F : V_File) is
    begin
--    Text_IO.Get(F,Value_Image(V));
        Text_Io.Put_Line ("Function not yet implemented");
    end Set_Value_Using_File;

end T_Value;

    nblk1=5
    nid=0
    hdr6=a
        [0x00] rec0=2c rec1=00 rec2=01 rec3=010
        [0x01] rec0=1e rec1=00 rec2=02 rec3=02a
        [0x02] rec0=22 rec1=00 rec2=03 rec3=03e
        [0x03] rec0=26 rec1=00 rec2=04 rec3=006
        [0x04] rec0=12 rec1=00 rec2=05 rec3=001
    tail 0x2174b770086574a2dc6d0 0x42a00088462060003