03-05-2007
You'll want to use the dscl commands going forward as the niutil commands will be going away someday...
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LEARN ABOUT DEBIAN
sub::delete
Sub::Delete(3pm) User Contributed Perl Documentation Sub::Delete(3pm)
NAME
Sub::Delete - Perl module enabling one to delete subroutines
VERSION
1.00002
SYNOPSIS
use Sub::Delete;
sub foo {}
delete_sub 'foo';
eval 'foo();1' or die; # dies
DESCRIPTION
This module provides one function, "delete_sub", that deletes the subroutine whose name is passed to it. (To load the module without
importing the function, write "use Sub::Delete();".)
This does more than simply undefine the subroutine in the manner of "undef &foo", which leaves a stub that can trigger AUTOLOAD (and,
consequently, won't work for deleting methods). The subroutine is completely obliterated from the symbol table (though there may be
references to it elsewhere, including in compiled code).
PREREQUISITES
This module requires perl 5.8.3 or higher.
LIMITATIONS
If you take a reference to a glob containing a subroutine, and then delete the subroutine with "delete_sub", you will find that the glob
you referenced still has a subroutine in it. This is because "delete_sub" removes a glob, replaces it with another, and then copies the
contents of the old glob into the new one, except for the "CODE" slot. (This is nearly impossible to fix without breaking
constant::lexical.)
BUGS
If you find any bugs, please report them to the author via e-mail.
AUTHOR & COPYRIGHT
Copyright (C) 2008-10 Father Chrysostomos (sprout at, um, cpan dot org)
This program is free software; you may redistribute or modify it (or both) under the same terms as perl.
SEE ALSO
perltodo, which has "delete &sub" listed as a possible future feature
Symbol::Glob and Symbol::Util, both of which predate this module (but I only discovered them recently), and which allow one to delete any
arbitrary slot from a glob. Neither of them takes perl 5.10 constants into account, however. They also both differ from this module, in
that a subroutine referenced in compiled code can no longer be called if deleted from its glob. The entire glob must be replaced (which
this module does).
perl v5.10.1 2010-11-06 Sub::Delete(3pm)