3 ms·

How does this differ from just sharing &str?

• phaylon 5y ago
  A `&str` is a borrow of the string slice data, and has borrowing semantics. An `std::sync::Arc<str>` on the other hand isn't borrowed but has shared ownership and is atomically reference counted. Does that answer the question? Could you expand on what you mean by sharing `&str`?
  • rmdashrfstar 5y ago
    I suppose my question is what motivates the use of atomically referencing counting string slice rather than borrowing?
    • phaylon 5y ago
      You can store it independently without it being borrowed. So your structs don't need lifetimes. I consider it a midpoint between `String` and `&str`. Most of the convenience of `String` (barring mutation) but less costly.