miniblog.

I'm debating whether `from foo import *` is a bad feature for my toy programming language. Forcing `import foo as f` and later `f::bar()` is so much more amenable to local static analysis. You also don't get issues with name clashes. It's certainly convenient though.

One interesting aspect of collecting coins in a platformer like mario: it makes the level stateful. You can see if you've been somewhere before based on whether there are coins present.

I've just squeezed another 5% of performance out of difftastic by finding a few HashSet values that weren't FxHashSet. I do wonder whether hash DoS resistance is a good default. Sure, Rust programs are often pretty fast anyway, but it feels like a different threat model to the rest of Rust.