Rust

5979 readers

132 users here now

Welcome to the Rust community! This is a place to discuss about the Rust programming language.

Wormhole

[email protected]

Credits

The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)

founded 1 year ago

MODERATORS

[BLOG] Why Rust mutexes look like they do - Cliffle (cliffle.com)

submitted 1 month ago by snaggen to c/rust

19 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] BB_C 3 points 1 month ago* (last edited 1 month ago) (1 children)

a better solution would be to add a method called something like ulock that does a combined lock and unwrap.

That's exactly what's done above using an extension trait! You can mutex_val.ulock() with it!

Now that I think about it, I don’t like how unwrap can signal either “I know this can’t fail”, “the possible error states are too rare to care about” or “I can’t be bothered with real error handing right now”.

That's why you're told (clippy does that i think) to use expect instead, so you can signal "whatever string" you want to signal precisely.

[–] [email protected] 1 points 1 month ago

Exactly! My code has a handful of "expect()" calls in it, and each one self-documents why it's okay. It's like a comment, but it appears in logs if it ever triggers.