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0 pointsjustinsaccount2y ago0 comments

The biggest difference is in rust you have to handle the error case, but in go you can accidentally ignore it.

0 comments

I believe there is a vet check for this. So while the compiler won’t stop you from ignoring errors, it will tell you that you aren’t checking an error. Yes, you can ignore the error with _, but then it isn’t accidental.

jppittma2y ago

This seams silly and nitpicks to my. In go, you have to assign the error, and if you assign it you have to use the variable. I've never seen this mistake before in my years of using go.

masklinn2y ago

> In go, you have to assign the error, and if you assign it you have to use the variable.

Nope. Go errors on dead variables, not on dead stores.

And because idiomatic go tends to reassign errors to the same variable if you have multiple error-returning functions in the same scope any one of them being checked will make the compiler happy.

You also do not have to assign the error at all, you can just ignore the entire thing.

nulld3v2y ago

Going to link my comment here: https://news.ycombinator.com/item?id=36398874

philozzzozzz2y ago

No compiler can force you to handle an error.

Rust might force you to access a value. Big. Fucking. Deal.

mkehrt2y ago

The point isn't that it forces you to access the error. The point is that it prevents you from accessing an invalid return value.

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