miniblog.

TIL Rust has an ambiguity `if Foo {}` -- is `Foo` a value of type bool, or a struct? Rust solves this by defining a grammar production 'any expression except struct literals' and using it in this position.

Structs are great in Rust, but sometimes I find them a bit heavyweight. There's a little more syntax than e.g. OCaml, for type definitions and usages. I end up using more structs (records) in OCaml as a result. rust-analyzer has "convert tuple to named struct", which helps.

TIL that Rust has a (i) icon that shows relevant traits that a type implements. This is useful to understand that e.g. .iter() on a Vec<T> iterates with &T. https://doc.rust-lang.org/std/vec/struct.Vec.html#method.iter It looks like one of my bug reports was mentioned, so I'm delighted but wish I'd noticed earlier!