2 unstable releases
0.2.0 | Dec 10, 2022 |
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0.1.0 | Dec 10, 2022 |
#1474 in Rust patterns
9KB
116 lines
Simple Labeled IDs
Simple IDs with associated type labels.
use slid::Id;
struct User;
let player_a = Id::<User>::new_random();
let player_b = Id::<User>::new_random();
// For all practical purposes, we can assume that 2 random IDs will be unique and different
assert_ne!(player_a, player_b);
// The label generic helps avoid mixups:
struct Product;
fn delete_product(id: Id<Product>) {}
// Doesn't compile, because Id<User> and Id<Player> are different
// delete_product(player_a);
// But you can explicitly cast the label if needed:
delete_product(player_a.cast_label());
Alternatives
Note: this library does not attempt conform to any UUID standards. Random IDs are plain simple random. If you want the standardized UUIDs, check out uuid
Dependencies
~0.6–1.2MB
~27K SLoC