In a tie constructor (TIESCALAR, TIEARRAY, TIEHASH, or
TIEHANDLE) how can I access the value of the thing being tied?
I really want to know how to do this for a TIEHANDLE, but
I assume that the procedure would be about the same for any
tie constructor. Similarly, can I set the tied variable
during an untie?
Example code : I want to access the value of $t (or whatever
the variable being tied is) in the
TIESCALAR call. How can I get it? Or can I get it at all?
package TestTie;
sub TIESCALAR{
my $pkg=shift;
my $obj=[] ;
bless $obj, $pkg;
return $obj;
}
package main;
my $t=9;
tie $t , 'TestTie';
I've been through the perltie docs, the Tie chapter of
Advanced Perl Programming and the source code for several
of the Tie:: modules, but can't seem to find any pointers.
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