NAME¶
Devel::Caller - meatier versions of "caller"
SYNOPSIS¶
use Devel::Caller qw(caller_cv);
$foo = sub { print "huzzah\n" if $foo == caller_cv(0) };
$foo->(); # prints huzzah
use Devel::Caller qw(called_with);
sub foo { print called_with(0,1); }
foo( my @foo ); # should print '@foo'
DESCRIPTION¶
- caller_cv($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.
- •
- As a version 2.0 of Devel::Caller we no longer maintain compatibility with
versions of perl earlier than 5.8.2. Older versions continue to be
available from CPAN and backpan.
SEE ALSO¶
"caller" in perlfunc, PadWalker, Devel::Peek
AUTHOR¶
Richard Clamp <richardc@unixbeard.net> with close reference to PadWalker
by Robin Houston
COPYRIGHT¶
Copyright (c) 2002, 2003, 2006, 2007, 2008, 2010, 2013 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.