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by selfmodruntime 15 days ago
This isn't propaganda, the Rust compiler's rules when using the unsafe keyword are difficult to uphold, which is why the community wrote Miri.
1 comments

Ok, and how does, in your opinion, compiler rules enforcement work in an unsafe block?

And how does Miri help solve this issue?

> Ok, and how does, in your opinion, compiler rules enforcement work in an unsafe block?

By the engineer's wit of course!

> And how does Miri help solve this issue?

By detecting undefined behavior caused by violation these rules

> By the engineer's wit of course!

Seeing how the Rust compiler isn't an LLM, it can't really work on wit.

From the POV of a programmer, how would you implement an unsafe block? What is disabled vs what's enabled?

> By detecting undefined behavior

Say you are tasked with making Miri; how do you detect violations of these rules?

Is there a "Rust compiler's rule" you can point to that's harder than avoiding UB in C or C++ in similar circumstances? They strike me as very similar beasts.