NAME Devel::Caller - meatier versions of "caller" SYNOPSIS use Devel::Caller qw(caller_cv); $foo = sub { print "huzzah\n" if $foo == caller_cv(0) }; $foo->(); # prints huzzah use Devel::Caller qw(called_with); my @foo; sub foo { print "huzzah" if \@foo == (called_with 0)[0] } foo(@foo); # should print huzzah DESCRIPTION caller_cv($level) "caller_cv" gives you the coderef of the subroutine being invoked at the call frame indicated by the value of $level caller_args($level) Returns the arguments passed into the caller at level $level caller_vars( $level, $names ) =item called_with($level, $names) "called_with" returns a list of references to the original arguments to the subroutine at $level. if $names is true, the names of the variables will be returned instead constants are returned as "undef" in both cases called_as_method($level) "called_as_method" returns true if the subroutine at $level was called as a method. BUGS All of these routines are susceptible to the same limitations as "caller" as described in "caller" in perlfunc The deparsing of the optree perfomed by called_with is fairly simple-minded and so a bit flaky. It's know to currently chokes structures such as this: foo( [ 'constant' ] ); Also, on perl 5.005_03 use vars qw/@bar/; foo( @bar = qw( some value ) ); is broken as it generates real split ops rather than optimising it into a constant assignment at compile time as in newer perls. HISTORY 0.08 Released 2003-03-28 Added caller_vars as a synonym for called_with Added caller_args 0.06 Released 2002-11-21 Fix to called_as_method from Rafael Garcia-Suarez to handle $foo->$method() calls. 0.06 Released 2002-11-20 Added called_as_method routine 0.05 Released 2002-07-25 Fix a segfault under ithreads. Cleaned up some development cruft that leaked out while rushing. 0.04 Released 2002-07-01 Decode glob params too. 0.03 Released 2002-04-02 Refactored to share the upcontext code from PadWalker 0.08 SEE ALSO "caller" in perlfunc, PadWalker, Devel::Peek AUTHOR Richard Clamp with close reference to PadWalker by Robin Houston COPYRIGHT Copyright (c) 2002, 2003, Richard Clamp. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.