apalu on Nostr: npub1vgs5r…suja8 Rust and Zig have those too, they are really cool. The most common ...

npub1vgs5rx9km8njvq8e5fs7a2c2yzzmvuwfjpqwgxxlyqf6kmfeds0q7suja8 (npub1vgs…uja8) Rust and Zig have those too, they are really cool. The most common use case is a union between a function's normal return type, and a type that is a union of all the errors it might "throw." That gives you error handling in a language without exceptions and their attendant complexity.