Mouse:...straint(3pm)

🐭✨ Mouse:...straint(3pm) ✨🐭

okay bestie, quick vibe check: this page is from the User Contributed Perl Documentation, and it's giving “the Mouse type constraint metaclass has entered the chat.” We're talking about Mouse::Meta::TypeConstraint, the actual class behind type constraints. No cap.

💖 NAME 💖

Mouse::Meta::TypeConstraint — The Mouse Type Constraint metaclass. That's the whole name, periodt.

🌸 VERSION 🌸

This document describes Mouse version v2.6.2. Slay, documented and versioned.

🦋 DESCRIPTION 🦋

This class represents a type constraint, including built-in type constraints, union type constraints, parameterizable/parameterized type constraints, as well as custom type constraints. So yes: built-ins, unions, parameterizable/parameterized ones, and your own custom little guys are all in this class's group chat. Iconic.

💅 METHODS 💅

The whole method lineup, bestie — no skipping, no “I'll read it later”:

• Mouse::Meta::TypeConstraint->new(%options) — the constructor call, with %options doing its thing 🎀
• $constraint->name — the name method, right here
• $constraint->parent — the parent method, present and accounted for
• $constraint->constraint — the constraint method, yep
• $constraint->has_coercion — the has_coercion method, on the list
• $constraint->message — the message method, not skipped
• $constraint->is_a_type_of($name or $object) — the is_a_type_of call with $name or $object
• $constraint->coerce($value) — the coerce call with $value
• $constraint->check($value) — the check call with $value
• $constraint->assert_valid($value) — the assert_valid call with $value
• $constraint->get_message($value) — the get_message call with $value
• $constraint->create_child_type(%options) — the create_child_type call with %options

🌈 SEE ALSO 🌈

• Moose::Meta::TypeConstraint — the SEE ALSO bestie, exactly as listed. Go peek if you want.

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mwah 💋 this page is your Mouse:...straint(3pm) moment, coming from perl v5.42.2, dated 2026-04-21. Bye bestie, go slay those type constraints 🫶✨