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

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⟦196dc5694⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Value, seg_032d9b

Derivation

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

with Scanner;
with Object;
with Binary, More_Value;

package body Value is

    type Node_Structure is
        record
            Rule : Natural range 0 .. 1 := 0;
            Bin : Binary.Node := Binary.Empty_Node;
            More : More_Value.Node := More_Value.Empty_Node;
            Mess : Object.Keyword;
        end record;

    procedure Parse (N : in out Node; Error : out Boolean) is
        Failed : Boolean := False;
        use Scanner;
    begin  
        N := new Node_Structure;
        N.Rule := 0;
        Binary.Parse (N.Bin, Failed);
        if not Failed and then Scanner.Get_Token = Scanner.Keyword then
            N.Rule := 1;
            More_Value.Parse (N.More, N.Mess, Failed);
        end if;
        Error := Failed;
    end Parse;

    function Is_First (T : Scanner.Token) return Boolean is
    begin
        return Binary.Is_First (T);
    end Is_First;

    function Interpret (N : Node) return Object.Reference is
        Result : Object.Reference;
    begin

        Result := Binary.Interpret (N.Bin);
        if N.Rule = 1 then
            More_Value.Interpret (N.More, N.Mess);
            return Object.Send (N.Mess, Result);
        end if;
        return Result;
    end Interpret;
end Value;

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=23 rec1=00 rec2=01 rec3=076
        [0x01] rec0=0c rec1=00 rec2=02 rec3=001
    tail 0x2172e619284cc5a84149f 0x42a00088462060003