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

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⟦682f4bdf9⟧ Ada Source

    Length: 5120 (0x1400)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body System_Defined, seg_03bb65, seg_03c0c7, seg_03c532, seg_03c6d9, separate Generic_Fact_Base.Predicate

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦5a81ac88f⟧ »Space Info Vol 1« 
        └─⟦this⟧ 
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

separate (Generic_Fact_Base.Predicate)
package body System_Defined is

    function Match (Using_Operator : Operators; Value : Slot.Object)
                   return Boolean is
    begin
        case Using_Operator is
            when Is_Equal | Is_Less | Is_Less_Or_Equal |
                 Is_Greater | Is_Greater_Or_Equal | Is_Different =>
                raise Illegal_Operation;
            when Is_Any =>
                return True;
            when Is_Undefined =>
                return Slot.Is_Undefined (Value);
            when Is_Defined =>
                return not Slot.Is_Undefined (Value);
        end case;

    end Match;

    function Match (Using_Operator : Operators;
                    Value          : Slot.Object;
                    Against        : Slot.Object) return Boolean is
        use Slot.Operators;
    begin
        if Slot.Is_A_Reference (Value) then
            if Using_Operator = Is_Equal then
                return Class.Is_Equal (Value, Against);  
            elsif Using_Operator = Is_Different then
                return not Class.Is_Equal (Value, Against);
            else
                return False;
            end if;
        else
            case Using_Operator is
                when Is_Equal =>
                    return Value = Against;
                when Is_Less =>
                    return Value < Against;
                when Is_Less_Or_Equal =>
                    return Value <= Against;
                when Is_Greater =>
                    return Value > Against;
                when Is_Greater_Or_Equal =>
                    return Value >= Against;
                when Is_Different =>
                    return Value /= Against;
                when Is_Any | Is_Undefined | Is_Defined =>
                    raise Illegal_Operation;
            end case;
        end if;
    end Match;



    function Image (Op : Operators) return String is
    begin
        case Op is

            when Is_Equal =>
                return "Is_Equal";
            when Is_Less =>
                return "Is_Less";  
            when Is_Less_Or_Equal =>
                return "Is_Less_Or_Equal";  
            when Is_Greater =>
                return "Is_Greater";  
            when Is_Greater_Or_Equal =>
                return "Is_Greater_Or_Equal";  
            when Is_Different =>
                return "Is_Different";  
            when Is_Any =>
                return "Is_Any";  
            when Is_Undefined =>
                return "Is_Undefined";  
            when Is_Defined =>
                return "is_defined";

        end case;
    end Image;
end System_Defined;

    nblk1=4
    nid=2
    hdr6=6
        [0x00] rec0=1d rec1=00 rec2=01 rec3=02e
        [0x01] rec0=1c rec1=00 rec2=03 rec3=062
        [0x02] rec0=1d rec1=00 rec2=04 rec3=000
        [0x03] rec0=03 rec1=98 rec2=7c rec3=542
    tail 0x217398d748540871549ae 0x42a00088462063c03
Free Block Chain:
  0x2: 0000  00 00 00 1c 80 0d 73 74 65 6d 5f 44 65 66 69 6e  ┆      stem_Defin┆