Nicolas Ward’s Reviews > Programming Rust: Fast, Safe Systems Development > Status Update

Enums and patterns have everything I love about Scala pattern matching and more. I'm trying to think if I ever used a C Union. Probably just to learn about them?

I think trait inheritance being a distinct syntax will bother me a bit

Module access control, interesting

Interesting to see what error features are built in versus in a crate. I do like that you have to be explicit; Java having a way to always short circuit to an undeclared exception bothered me.

Definitely helpful to have spent a lot of time with Scala match expressions recently.

I always hated the non-transitivity of const! By convention I'd try to enforce Rust rules but you couldn't.

"This is not so different from the process C and C++ programmers impose on themselves; the difference is that Rust knows the rules and enforces them."

Implicit chained dereferencing of . is basically how I used to write C but without all the painful casting and -> notation.

Learning about move and copy and how they compare to other language implementations feels like something unlocking. All the time spent hacking safe memory in an old C++ codebase...

Interesting that strings are encoded in-memory. I was always under the impression from C++ that fixed width encoding were superior