miniblog.

It's really satisfying fixing crashes in rust-analyzer. You can start from a panic message and dig until you've got a tiny Rust program that triggers the problem. (It's usually an issue with incomplete source files breaking invariants.)

Today I learnt about clippy::clone_on_ref_ptr, which complains about t.clone() on a Rc<Thing>. You write Rc::clone(t) instead, so it's obvious it's a cheap clone. It's a nice approach, because it makes the expensive clones more obvious.

It's funny how languages can offer multiple forms of syntax, but formatters standardise to a single form. E.g. single vs double quotes in JS, optional semicolons in JS, different ways of grouping imports in Rust. Should new languages be more syntactically opinionated?