GitHub – nushell/nushell: A new type of shell

Re:GitHub – nushell/nushell: A new type of shell by kamray23 on Wednesday June 16, 2021 @06:58AM (#27527059)

Oh? Perhaps I need to reconsider my past trust in Rust. In retrospect it makes sense, interop. without leaking memory would be damn near impossible.

Still, I expect it to be very hard to do accidentally. In C all you need to do is have your mind blank for a moment. Which isn't that uncommon, especially if you're on crunch or something.

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Re:GitHub – nushell/nushell: A new type of shell by pdpi on Wednesday June 16, 2021 @08:25AM (#27527695)

So there's two things to talk about here.

First, the language can't save you from getting the program semantics wrong (e.g. if you never delete an entry from a hashmap even after you're done with it, you're leaking that memory). No language can save you from leaks as a general concept.

Second, Rust makes a very specific promise — freedom from data races. Leaking resources does not actually break that promise, because it doesn't allow you to access that resource any more.

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