smol_buf

The smol_buf crate offers the following types, each offering inline stack-allocated storage, and falling back to heap-allocation otherwise.

ty	Deref Target	size_of::<T>	size_of::<Option<T>>	inline bytes	Clone
Str24	&str	24	24	23	O(1)
Str16	&str	16	16	15	O(1)
Buf24	&[u8]	24	24	23	O(1)
Buf16	&[u8]	16	16	15	O(1)

Unlike String and Vec, however, the types are immutable. They are thus replacements for Arc<str> and Arc<[u8]> respectively.

MSRV Policy

Minimal Supported Rust Version: latest stable.

Bumping MSRV is not considered a semver-breaking change.