It's a mixed bag. Short of defining a formal spec and writing the program with a theorem prover, "bug-free" code isn't really a realistic goal. However, Rust do

It's a mixed bag. Short of defining a formal spec and writing the program with a theorem prover, "bug-free" code isn't really a realistic goal. However, Rust does come with tools that at the very least allow the building of APIs that are very difficult to abuse via the trait system and other features such as sum types. Ultimately, spaghetti code is possible in virtually any language, so keeping a good eye on architecture is necessary no matter the language. What I would say is that Rust makes it easier to keep architecture constrained and correct.