miniblog.

TIL rustc has a style guide for suggestions! https://rustc-dev-guide.rust-lang.org/diagnostics.html#suggestion-style-guide They recommend avoiding 'did you mean' or 'the following' in favour of direct suggestions and highlighted positions.

Diff sliders are a really interesting problem for AST diffs. Here's a surprising example. At first, it looks like the first `|` should be highlighted. However the first `|` is the outer `match` case, and the inner | is syntactically an or-pattern!

Neat cargo plugin I haven't seen before: https://crates.io/crates/cargo-expand `cargo expand` will expand macros so you can see the regular Rust code produced. For example, println!(); expands to this (even syntax highlighted!).