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From: dslg0849@uxa.cso.uiuc.edu (Daniel S. Lewart)
Newsgroups: comp.lang.pascal
Subject: TP5.5:  Can't store method in procedure variable
Summary: I can't store a method in a procedure variable in TP5.5
Keywords: Method Object Procedure TP5.5
Message-ID: <1990Dec3.061013.22258@ux1.cso.uiuc.edu>
Date: 3 Dec 90 06:10:13 GMT
Sender: news@ux1.cso.uiuc.edu (News)
Organization: University of Illinois at Urbana
Lines: 32

I am attempting to store an object's method in a procedure variable in TP5.5.
However, I get a compiler error in the assignment statement.  What am I doing
wrong?  Is there some way to do what I want to do?

Thanks in advance,

Daniel Lewart
d-lewart@uiuc.edu
-------------------------------------------------------------------------------
{$F+}
type
  ObjectType = object
    procedure Method;
  end;
var
  Obj: ObjectType;
  ProcVar: procedure;

procedure ObjectType.Method;  begin end;
procedure Proc;  begin end;

Begin
  ProcVar := Proc;        { This compiles }
  ProcVar := Obj.Method;  { This doesn't }
End.
-------------------------------------------------------------------------------
e:\> tpc test
Turbo Pascal Version 5.5  Copyright (c) 1983,89 Borland International
TEST.PAS(15): Error 143: Invalid procedure or function reference.
  ProcVar := Obj.Method;  { This doesn't }
                       ^
-------------------------------------------------------------------------------


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