---
name: "Specio::Constraint::AnyCan"
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::AnyCan"
---

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

A class for constraints which require a class name or object with a set of methods

## NAME

Specio::Constraint::AnyCan - A class for constraints which require a class name or object with a set of methods

## VERSION

version 0.53

## SYNOPSIS

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

## DESCRIPTION

This is a specialized type constraint class for types which require a class name or object with a defined set of methods.

## API

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

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

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

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

This class overrides the `"message_generator"` default if none is provided.

Finally, this class requires an additional parameter, `"methods"`. This must be an array reference of method names which the constraint requires. You can also pass a single string and it will be converted to an array reference internally.

### $any\_can-\>methods

Returns an array reference containing the methods this constraint requires.

## ROLES

This class does the Specio::Constraint::Role::IsaType, 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.