NAME
Safe::Caller - Control code execution based upon caller()
SYNOPSIS
package abc;
use Safe::Caller;
$caller = Safe::Caller->new;
a();
sub a { b() }
sub b {
if ($caller->called_from_subroutine('abc::a')) { # do stuff }
print $caller->{subroutine}->();
}DESCRIPTION
CONSTRUCTOR
new
$caller = Safe::Caller->new(1);Providing how many frames to go back while running "caller" in perlfunc is optional. By default (if no suitable value is provided) 1 will be assumed. The default will be shared among all accessors and verification routines; the accessors may optionally accept a frame as argument, whereas verification routines (called_from_*()) don't.
METHODS
called_from_package
Checks whether the current sub was called within the given package.
$caller->called_from_package('Package');Returns true on success, false on failure.
called_from_filename
Checks whether the current sub was called within the given filename.
$caller->called_from_filename('file');Returns true on success, false on failure.
called_from_line
Checks whether the current sub was called on the given line.
$caller->called_from_line(42);Returns true on success, false on failure.
called_from_subroutine
Checks whether the current sub was called by the given subroutine.
$caller->called_from_subroutine('Package::sub');Returns true on success, false on failure.
ACCESSORS
$caller->{package}->();
$caller->{filename}->();
$caller->{line}->();
$caller->{subroutine}->();
$caller->{hasargs}->();
$caller->{wantarray}->();
$caller->{evaltext}->();
$caller->{is_require}->();
$caller->{hints}->();
$caller->{bitmask}->();See "caller" in perlfunc for the values they are supposed to return.
SEE ALSO
"caller" in perlfunc, Perl6::Caller, Devel::Caller, Sub::Caller
AUTHOR
Steven Schubiger <schubiger@cpan.org>
LICENSE
This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.