NAME
Safe::Caller - A nicer interface to caller() with code execution restriction
SYNOPSIS
use Safe::Caller;
$safe = Safe::Caller->new;
package Foo;
foo();
sub foo { bar() }
sub bar {
print $safe->{sub}->();
if ($safe->called_from_sub('Foo::foo')) { # do stuff }
}DESCRIPTION
CONSTRUCTOR
new
$safe = Safe::Caller->new(2);Supplying how many frames to go back while running "caller" in perlfunc is optional. By default (if no suitable value is supplied) 2 will be assumed. The default will be shared among all method calls (accessors & verification routines); the accessors may optionally accept a frame as parameter, whereas verification routines (called_from_*()) don't.
METHODS
Accessors
$safe->{pkg}->();
$safe->{file}->();
$safe->{line}->();
$safe->{sub}->();
$safe->{hasargs}->();
$safe->{wantarray}->();
$safe->{evaltext}->();
$safe->{is_require}->();
$safe->{hints}->();
$safe->{bitmask}->();See "caller" in perlfunc for the values they are supposed to return.
called_from_pkg
Checks whether the current sub was called within the appropriate package.
$safe->called_from_pkg('main');Returns 1 on success, 0 on failure.
called_from_file
Checks whether the current sub was called by the appropriate file.
$safe->called_from_file('foobar.pl');Returns 1 on success, 0 on failure.
called_from_line
Checks whether the current sub was called on the appropriate line.
$safe->called_from_line(13);Returns 1 on success, 0 on failure.
called_from_sub
Checks whether the current sub was called by the appropriate subroutine.
$safe->called_from_sub('foo');Returns 1 on success, 0 on failure.
SEE ALSO
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.