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Test2::Util::Sub - Tools for inspecting and manipulating subs.
Contents
Copyright
Copyright 2018 Chad Granum <exodist@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 v5.40.1 2025-07-03 Test2::Util::Sub(3perl)
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.
Maintainers
Chad Granum <exodist@cpan.org>
Name
Test2::Util::Sub - Tools for inspecting and manipulating subs.
Source
The source code repository for Test2-Suite can be found at https://github.com/Test-More/Test2-Suite/.
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