Comment by logicchains
5 days ago
>Rust is perfect for writing all of code using LLM.
Rust is a terrible language for using LLMs to write code if Rust's low latency isn't needed, because of its extreme compile times. LLMs code faster than humans so a far bigger fraction of the time is spent waiting for the compiler, and a reasonably sized project will take literally 10x longer to compile in Rust than in e.g. Zig or Go.
In my experience with Claude Code, it writes most of the code, including tests, without invoking the compiler until the very end (almost like a spelling checker). Rarely are there any compilation problems, and when there are, it’s often a token issue like a missing brace. I hypothesize this is possible because of the robust invariants of the language itself, and its strong types, such that the LLM can encode deeper meaning in fewer tokens.
Also remember, `cargo check` is quite fast, and wholly sufficient for confirming correctness.