cairo-recoverable-errors

name: cairo-recoverable-errors description: Explain Cairo recoverable errors using Result, ResultTrait, and the ? operator; use when a request involves returning, matching, or unwrapping Result values in Cairo.

Cairo Recoverable Errors

Overview

Show how to model recoverable failures with Result<T, E> and handle them safely.

Quick Use

• Read references/recoverable-errors.md before answering.
• Prefer match or ? over unwrap in non-test code.
• Mention expect when a custom panic message is desired.

Response Checklist

• Return Result<T, E> from fallible functions.
• Use Ok(...) and Err(...) explicitly.
• Apply ? to propagate errors from called functions.

Example Requests

• "How do I use Result in Cairo?"
• "What is the difference between unwrap and expect?"
• "How does the ? operator work?"

Cairo by Example

• Option & unwrap
• Unpacking options with ?
• Combinators: map
• Combinators: and_then
• Result
• Introducing ?
• Multiple error types
• Core Result