MownStr: Maybe Owned String
This crate provides MownStr,
a type for exchanging read-only strings that may be either borrowed or owned.
Contrarily to other types (such as for example Cow<str>),
MownStr does not aim to be mutable nor generic,
which allows it to be fast and lean.
Actually, a MownStr takes no more memory than a regular &str or Box<str>,
and has a minimal runtime overhead.
The drawback is that the maximum size of a MownStr
is half the size of a regular str
(which is still 8EiB on a 64-bit architectures...).
Supported Rust version
This crate targets the stable channel of rustc and cargo. I do not aim for compatibility with older versions, so new releases of mownstr may require you to upgrade your Rust toolchain.