NAME

Safe::Caller - A nicer interface to the built-in caller()

SYNOPSIS

 package abc;

 use Safe::Caller;

 $caller = Safe::Caller->new;

 a();

 sub a { b() }

 sub b {
     print $caller->{subroutine}->();
     if ($caller->called_from_subroutine('abc::a')) { # do stuff }
 }

DESCRIPTION

CONSTRUCTOR

new

 $caller = Safe::Caller->new(1);

Supplying how many frames to go back while running "caller" in perlfunc is optional. By default (if no suitable value is supplied) 1 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

 $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.

called_from_package

Checks whether the current sub was called within the appropriate package.

 $caller->called_from_package('main');

Returns 1 on success, 0 on failure.

called_from_filename

Checks whether the current sub was called within the appropriate filename.

 $caller->called_from_filename('foobar.pl');

Returns 1 on success, 0 on failure.

called_from_line

Checks whether the current sub was called on the appropriate line.

 $caller->called_from_line(13);

Returns 1 on success, 0 on failure.

called_from_subroutine

Checks whether the current sub was called by the appropriate subroutine.

 $caller->called_from_subroutine('foo');

Returns 1 on success, 0 on failure.

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.

See http://www.perl.com/perl/misc/Artistic.html

cpanm Safe::Caller

perl -MCPAN -e shell
install Safe::Caller