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.\" ========================================================================
.\"
.IX Title "Devel::Caller 3"
.TH Devel::Caller 3 "2013-01-16" "perl v5.26.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
Devel::Caller \- meatier versions of "caller"
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\& use Devel::Caller qw(caller_cv);
\& $foo = sub { print "huzzah\en" if $foo == caller_cv(0) };
\& $foo\->();  # prints huzzah
\&
\& use Devel::Caller qw(called_with);
\& sub foo { print called_with(0,1); }
\& foo( my @foo ); # should print \*(Aq@foo\*(Aq
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.IP "caller_cv($level)" 4
.IX Item "caller_cv($level)"
\&\f(CW\*(C`caller_cv\*(C'\fR gives you the coderef of the subroutine being invoked at
the call frame indicated by the value of \f(CW$level\fR
.IP "caller_args($level)" 4
.IX Item "caller_args($level)"
Returns the arguments passed into the caller at level \f(CW$level\fR
.ie n .IP "caller_vars( $level, $names ) =item called_with($level, $names)" 4
.el .IP "caller_vars( \f(CW$level\fR, \f(CW$names\fR ) =item called_with($level, \f(CW$names\fR)" 4
.IX Item "caller_vars( $level, $names ) =item called_with($level, $names)"
\&\f(CW\*(C`called_with\*(C'\fR returns a list of references to the original arguments
to the subroutine at \f(CW$level\fR.  if \f(CW$names\fR is true, the names of the
variables will be returned instead
.Sp
constants are returned as \f(CW\*(C`undef\*(C'\fR in both cases
.IP "called_as_method($level)" 4
.IX Item "called_as_method($level)"
\&\f(CW\*(C`called_as_method\*(C'\fR returns true if the subroutine at \f(CW$level\fR was
called as a method.
.SH "BUGS"
.IX Header "BUGS"
All of these routines are susceptible to the same limitations as
\&\f(CW\*(C`caller\*(C'\fR as described in \*(L"caller\*(R" in perlfunc
.PP
The deparsing of the optree perfomed by called_with is fairly simple-minded
and so a bit flaky.
.IP "\(bu" 4
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 \s-1CPAN\s0 and backpan.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\*(L"caller\*(R" in perlfunc, PadWalker, Devel::Peek
.SH "AUTHOR"
.IX Header "AUTHOR"
Richard Clamp <richardc@unixbeard.net> with close reference to
PadWalker by Robin Houston
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 2002, 2003, 2006, 2007, 2008, 2010, 2013 Richard Clamp.
All Rights Reserved.
.PP
This module is free software. It may be used, redistributed and/or
modified under the same terms as Perl itself.