----------------------------------------------------------------------------- | PadWalker v0.09 - Robin Houston ----------------------------------------------------------------------------- Changes since v0.08: - compile on threaded builds - skip test 9 if we're on Perl 5.8. (Otherwise it fails.) DESCRIPTION PadWalker is a module which allows you to inspect (and even change!) lexical variables in any subroutine which called you. It will only show those variables which are in scope at the point of the call. The `peek_my' routine takes one parameter, the number of call levels to go back. (It works the same way as caller() does.) It returns a reference to a hash which associates each variable name with a reference to its value. The variable names include the prefix, so $x is actually '$x'. For example: my $x = 12; my $h = peek_my (0); ${$h->{'$x'}}++; print $x; # prints 13 Or a more complex example: sub increment_my_x { my $h = peek_my (1); ${$h->{'$x'}}++; } my $x=5; increment_my_x; print $x; # prints 6 The `peek_sub' routine takes a coderef as its argument, and returns a hash of the lexical variables used in that sub. AUTHOR Robin Houston