Specio::Constraint::ObjectDoes(3) User Contributed Perl Documentation Specio::Constraint::ObjectDoes(3)

# [SYNOPSIS](#SYNOPSIS)

```
    my $type = Specio::Constraint::ObjectDoes->new(...);
    print $type->role;
```

# [DESCRIPTION](#DESCRIPTION)

This is a specialized type constraint class for types which require an object that does a specific role.

# [API](#API)

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

## [Specio::Constraint::ObjectDoes->new( ... )](#Specio::Constraint::ObjectDoes)

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, "role". This must be a single role name.

## [$object\_isa->role](#$object_isa)

Returns the role name passed to the constructor.

# [ROLES](#ROLES)

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

2026-10-26 perl v5.44.0

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Document: Specio::Constraint::ObjectDoes(3pm) from perl-specio 0.53-r7 (Chainguard OS)
Source: https://github.com/houseabsolute/Specio