DataMuseum.dk

Presents historical artifacts from the history of:

Rational R1000/400

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artifacts from Datamuseum.dk's BitArchive.

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⟦bfcb3a0bd⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package Statements, seg_034a44

Derivation

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

E3 Source Code



-- This package parses and interprets the following rules:
--
-- rule 0:
--  syntax:   <statements> ::= empty
--  sementic: statements.result = statements.inherited; default: object.void_reference
-- rule 1:
--  syntax:   <statements> ::= <expression> <more_statements>
--  sementic: statements.result = more_statements.result
--            more_statements.inherited = expression.result
-- rule 2:
--  syntax:   <statements> ::= renvoyer <expression>
--  sementic: statements.result = expression.result


with Scanner;
with Object;

package Statements is
    type Node is private;
    Empty_Node : constant Node;

    procedure Parse (N : in out Node);
    function Is_First (T : Scanner.Token) return Boolean;
    function Interpret (N : Node;
                        Inherited : Object.Reference := Object.Void_Reference)
                       return Object.Reference;

private
    type Node_Structure;
    type Node is access Node_Structure;
    Empty_Node : constant Node := null;
end Statements;

E3 Meta Data

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=20 rec1=00 rec2=01 rec3=010
        [0x01] rec0=03 rec1=00 rec2=02 rec3=001
    tail 0x2152d041a84d388450ddb 0x42a00088462060003