NAME

Test::Vars - Detects unused variables

VERSION

This document describes Test::Vars version 0.004.

SYNOPSIS

    use Test::Vars;

    all_vars_ok(); # check libs in MANIFEST

DESCRIPTION

Test::Vars finds unused variables in order to keep the source code tidy.

INTERFACE

Exported

all_vars_ok(%args)

Tests libraries in your distribution with %args.

libraries are collected from the MANIFEST file.

If you want to ignore variables, for example $foo, you can tell it to the test routines:

ignore_vars => { '$foo' => 1 }

ignore_vars => [qw($foo)]

ignore_if => sub{ $_ eq '$foo' }

Note that $self will be ignored by default unless you pass explicitly { '$self' => 0 } to ignore_vars.

vars_ok($lib, %args)

Tests $lib with %args.

See all_vars_ok.

MECHANISM

Test::Vars is similar to a part of Test::Perl::Critic,but the mechanism is different.

While Perl::Critic, the backend of Test::Perl::Critic, scans the source code as texts, this modules scans the compiled opcode (or AST: abstract syntax tree) using the B module. See also B and its submodules.

CONFIGURATION

TEST_VERBOSE = 1 | 2 shows the way this module works.

CAVEATS

https://rt.cpan.org/Ticket/Display.html?id=60018

https://rt.cpan.org/Ticket/Display.html?id=82411

DEPENDENCIES

Perl 5.10.0 or later.

BUGS

All complex software has bugs lurking in it, and this module is no exception. If you find a bug please either email me, or add the bug to cpan-RT.

SEE ALSO

Perl::Critic

warnings::unused

B

Test::Builder::Module

AUTHOR

Goro Fuji (gfx) <gfuji(at)cpan.org>

LICENSE AND COPYRIGHT

Copyright (c) 2010, Goro Fuji (gfx). All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic for details.