Cairo Match

Overview

Explain how to use match for branching on enum values and destructuring data safely.

Quick Use

• •Read references/match.md before answering.
• •Include an exhaustive match with a _ fallback when appropriate.
• •Emphasize that all arms must return the same type when used as an expression.

Response Checklist

• •Use fully qualified variants like EnumName::Variant in patterns.
• •Bind inner data with patterns like EnumName::Variant(value).
• •Keep match arms exhaustive; add _ only when appropriate.

Example Requests

• •"How do I match on an Option in Cairo?"
• •"Why is my match non-exhaustive?"
• •"How do I extract the value from an enum variant?"

Cairo by Example

• •match
• •Destructuring
• •Destructuring enums
• •Destructuring structs