Crate small_collections 

Small inline-or-heap collections with a Vec/String-like API.

This crate provides two containers that keep short sequences on the stack and automatically spill onto the heap once they outgrow their inline capacity:

• SmallVec — a vector that stores its first N elements inline.
• SmallString — a string that stores its first N bytes inline.

Both dereference to their standard-library counterparts ([T] and str respectively), so the usual slice and string methods are available.

Examples

use small_collections::{SmallString, SmallVec};

let mut v: SmallVec<i32, 4> = SmallVec::new();
v.extend([1, 2, 3]);
assert!(v.is_inline());

let mut s: SmallString<8> = SmallString::new();
s.push_str("hello");
assert!(s.is_inline());

Feature flags

• std (default) — enables the standard library and the std::io::Write implementation for SmallVec<u8, N>.
• serde — enables Serialize/Deserialize. SmallVec serializes as a flat sequence and SmallString as a plain string, regardless of the underlying storage.
• bytes — enables the bytes::BufMut implementation for SmallVec<u8, N>.

Enums

Drain

A draining iterator for a SmallVec.

IntoIter

An iterator that moves elements out of a SmallVec.

SmallString

A string that stores up to N bytes inline (on the stack) and spills onto the heap once it grows past that inline capacity.

SmallVec

A vector that stores its first N elements inline (on the stack) and spills onto the heap once it grows past that inline capacity.