Copyright (C) 1994, Digital Equipment Corp.
Created on Tue Jan 19 14:00:00 PST 1994 by najork
MODULE ObTime;
IMPORT ObAux, ObCommand, ObLib, ObValue, Obliq, SynLocation, Time;
CONST
pkgname = "Time";
***************************************************************************
Setup procedures
***************************************************************************
PROCEDURE SetupPackage () =
PROCEDURE NewOpCode (name: TEXT; arity: INTEGER; code: Code) : OpCode =
BEGIN
RETURN NEW (OpCode, name := name, arity := arity, code := code);
END NewOpCode;
TYPE
OpCodes = ARRAY OF ObLib.OpCode;
VAR
opCodes: REF OpCodes;
BEGIN
opCodes := NEW (REF OpCodes, NUMBER (Code));
opCodes^ := OpCodes {NewOpCode ("Now", 0, Code.Now)};
ObLib.Register (NEW (Package, name := pkgname, opCodes := opCodes));
ObLib.RegisterHelp (pkgname, Help);
END SetupPackage;
***************************************************************************
Execution machinery
***************************************************************************
TYPE
Code = {Now};
OpCode = ObLib.OpCode OBJECT
code: Code;
END;
Package = ObLib.T OBJECT
OVERRIDES
Eval := DoEval;
END;
PROCEDURE DoEval (<* UNUSED *> self : Package;
opCode : ObLib.OpCode;
<* UNUSED *> arity : ObLib.OpArity;
<* UNUSED *> READONLY args: ObValue.ArgArray;
<* UNUSED *> temp : BOOLEAN;
<* UNUSED *> loc : SynLocation.T) : ObValue.Val =
BEGIN
CASE NARROW (opCode, OpCode).code OF
| Code.Now =>
RETURN Obliq.NewReal (Time.Now ());
END;
END DoEval;
***************************************************************************
Help
***************************************************************************
PROCEDURE Help (self : ObCommand.T; arg : TEXT; <* UNUSED *> data : REFANY) =
BEGIN
ObAux.Help (self, arg, pkgname);
END Help;
BEGIN
END ObTime.