• 2 Posts
  • 3 Comments
Joined 1 year ago
cake
Cake day: June 13th, 2023

help-circle


  • If all you do in the Err(e) => ... match arm is returning the error, then you absolutely should use the ? operator instead.

    If the match arm also converts the error type into another error type, implement the From trait for the conversion, then you can use ? as well.

    If you want to add more information to the error, you can use .map_err(...)?. Or, if you’re using the anyhow crate, .with_context(...)?.