---
name: "Perl::Critic::Policy::TestingAndDebugging::ProhibitNoWarnings"
section: "3pm"
platform: "linux"
package: "perl-perl-critic"
version: "1.156-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Perl::Critic::Policy::TestingAndDebugging::ProhibitNoWarnings"
---

# Perl::Critic::Policy::TestingAndDebugging::ProhibitNoWarnings(3pm)

Prohibit various flavors of "no warnings".

## NAME

Perl::Critic::Policy::TestingAndDebugging::ProhibitNoWarnings - Prohibit various flavors of "no warnings".

## AFFILIATION

This Policy is part of the core Perl::Critic distribution.

## DESCRIPTION

There are good reasons for disabling certain kinds of warnings.  But if you were wise enough to `"use warnings"` in the first place, then it doesn't make sense to disable them completely.  By default, any `"no warnings"` statement will violate this policy.  However, you can configure this Policy to allow certain types of warnings to be disabled (See "CONFIGURATION").  A bare `"no warnings"` statement will always raise a violation.

## CONFIGURATION

The permitted warning types can be configured via the `"allow"` option. The value is a list of whitespace-delimited warning types that you want to be able to disable.  See perllexwarn for a list of possible warning types.  An example of this customization:

```
    [TestingAndDebugging::ProhibitNoWarnings]
    allow = uninitialized once
```

If a true value is specified for the `"allow_with_category_restriction"` option, then any `"no warnings"` that restricts the set of warnings that are turned off will pass.

```
    [TestingAndDebugging::ProhibitNoWarnings]
    allow_with_category_restriction = 1
```

## SEE ALSO

Perl::Critic::Policy::TestingAndDebugging::RequireUseWarnings

## AUTHOR

Jeffrey Ryan Thalhammer \<jeff@imaginative-software.com\>

## COPYRIGHT

Copyright (c) 2005-2021 Imaginative Software Systems.  All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license can be found in the LICENSE file included with this module