---
name: "Specio::Constraint::Enum"
section: "3pm"
platform: "linux"
package: "perl-specio"
version: "0.53-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Specio::Constraint::Enum"
---

# Specio::Constraint::Enum(3pm)

A class for constraints which require a string matching one of a set of values

## NAME

Specio::Constraint::Enum - A class for constraints which require a string matching one of a set of values

## VERSION

version 0.53

## SYNOPSIS

```
    my $type = Specio::Constraint::Enum->new(...);
    print $_, "\n" for @{ $type->values };
```

## DESCRIPTION

This is a specialized type constraint class for types which require a string that matches one of a list of values.

## API

This class provides all of the same methods as Specio::Constraint::Simple, with a few differences:

### Specio::Constraint::Enum-\>new( ... )

The `"parent"` parameter is ignored if it passed, as it is always set to the `"Str"` type.

The `"inline_generator"` and `"constraint"` parameters are also ignored. This class provides its own default inline generator subroutine reference.

Finally, this class requires an additional parameter, `"values"`. This must be a an arrayref of valid strings for the type.

### $enum-\>values

Returns an array reference of valid values for the type.

## ROLES

This class does the Specio::Constraint::Role::Interface and Specio::Role::Inlinable roles.

## SUPPORT

Bugs may be submitted at \<https://github.com/houseabsolute/Specio/issues\>.

## SOURCE

The source code repository for Specio can be found at \<https://github.com/houseabsolute/Specio\>.

## AUTHOR

Dave Rolsky \<autarch@urth.org\>

## COPYRIGHT AND LICENSE

This software is Copyright (c) 2012 - 2025 by Dave Rolsky.

This is free software, licensed under:

```
  The Artistic License 2.0 (GPL Compatible)
```

The full text of the license can be found in the *LICENSE* file included with this distribution.