Tcl style traces

[Derek Fountain]

Does Perl have something similar to Tcl style tracing? That is, the ability
to call a subroutine when a variable is written to or read from?

 

[Ben Morrow]

Does Perl have something similar to Tcl style tracing? That is, the ability
to call a subroutine when a variable is written to or read from?

perldoc perltie

Ben

 

[Malcolm Dew-Jones]

Derek Fountain ([email protected]) wrote:
: Does Perl have something similar to Tcl style tracing? That is, the ability
: to call a subroutine when a variable is written to or read from?

perldoc perltie

(Not sure if the case is right)

Tie your variable to a routine that does anything you want.

The debugger may also already have a way to do this during a debug session
(I have no idea if it does, it's just a thought).

CPAN has various "tie" related modules that might be worth looking at.

 

[Derek Fountain]

Does Perl have something similar to Tcl style tracing? That is, the

perldoc perltie

Looks like just the thing, thanks.

 

[Steve Lidie]

Does Perl have something similar to Tcl style tracing? That is, the ability
to call a subroutine when a variable is written to or read from?

Tie::Watch on CPAN.