---
name: "Specio::DeclaredAt"
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::DeclaredAt"
---

# Specio::DeclaredAt(3pm)

A class to represent where a type or coercion was declared

## NAME

Specio::DeclaredAt - A class to represent where a type or coercion was declared

## VERSION

version 0.53

## SYNOPSIS

```
    my $declared = Specio::DeclaredAt->new_from_caller(1);
    print $declared->description;
```

## DESCRIPTION

This class provides a thin wrapper around some of the return values from Perl's `"caller"` built-in. It's used internally to identify where types and coercions are being declared, which is useful when generating error messages.

## API

This class provides the following methods.

### Specio::DeclaredAt-\>new\_from\_caller($depth)

Given a call stack depth, this method returns a new `"Specio::DeclaredAt"` object.

### $declared\_at-\>package, $declared\_at-\>filename, $declared\_at-\>line

Returns the call stack information recorded when the object was created. These values are always populated.

### $declared\_at-\>subroutine

Returns the subroutine from the call stack. This may be an `"udnef"`

### $declared\_at-\>has\_subroutine

Returns true if there is a subroutine name associated with this object.

### $declared\_at-\>description

Puts all the information together into a single string like "declared in package Foo::Bar (.../Foo/Bar.pm) at line 42 in sub named blah".

## 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.