Test2::Util::Sub(3pm)          User Contributed Perl Documentation          Test2::Util::Sub(3pm)



NAME
       Test2::Util::Sub - Tools for inspecting and manipulating subs.

DESCRIPTION
       Utilities used by Test2::Tools to inspect and manipulate subroutines.

EXPORTS
       All exports are optional, you must specify subs to import.

       $name = sub_name(\&sub)
           Get the name of the sub.

       my $hr = sub_info(\&code)
           This returns a hashref with information about the sub:

               {
                   ref        => \&code,
                   cobj       => $cobj,
                   name       => "Some::Mod::code",
                   file       => "Some/Mod.pm",
                   package    => "Some::Mod",

                   # Note: These have been adjusted based on guesswork.
                   start_line => 22,
                   end_line   => 42,
                   lines      => [22, 42],

                   # Not a bug, these lines are different!
                   all_lines  => [23, 25, ..., 39, 41],
               };

           $info->{ref} => \&code
               This is the original sub passed to "sub_info()".

           $info->{cobj} => $cobj
               This is the c-object representation of the coderef.

           $info->{name} => "Some::Mod::code"
               This is the name of the coderef. For anonymous coderefs this may end with
               '__ANON__'. Also note that the package 'main' is special, and 'main::' may be
               omitted.

           $info->{file} => "Some/Mod.pm"
               The file in which the sub was defined.

           $info->{package} => "Some::Mod"
               The package in which the sub was defined.

           $info->{start_line} => 22
           $info->{end_line} => 42
           $info->{lines} => [22, 42]
               These three fields are the adjusted start line, end line, and array with both.  It
               is important to note that these lines have been adjusted and may not be accurate.

               The lines are obtained by walking the ops. As such, the first line is the line of
               the first statement, and the last line is the line of the last statement.  This
               means that in multi-line subs the lines are usually off by 1.  The lines in these
               keys will be adjusted for you if it detects a multi-line sub.

           $info->{all_lines} => [23, 25, ..., 39, 41]
               This is an array with the lines of every statement in the sub. Unlike the other
               line fields, these have not been adjusted for you.

SOURCE
       The source code repository for Test2-Suite can be found at
       https://github.com/Test-More/Test2-Suite/.

MAINTAINERS
       Chad Granum <exodist AT cpan.org>

AUTHORS
       Chad Granum <exodist AT cpan.org>
       Kent Fredric <kentnl AT cpan.org>

COPYRIGHT
       Copyright 2018 Chad Granum <exodist AT cpan.org>.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

       See http://dev.perl.org/licenses/



perl v5.20.2                                2023-10-25                      Test2::Util::Sub(3pm)