Compact inlined strings.
String type that's source compatible with std::string::String, uses exactly the same amount of
space, doesn't heap allocate for short strings (up to 23 bytes on 64-bit archs) by storing them in
the space a String would have taken up on the stack, making strings go faster overall.
This crate provides a wrapper for Rust's standard String which uses the space a String occupies
on the stack to store inline string data, automatically promoting it to a String when it grows
beyond the inline capacity. This has the advantage of avoiding heap allocations for short strings as
well as improving performance thanks to keeping the strings on the stack.
This is all accomplished without the need for an external discriminant, so a SmartString is
exactly the same size as a String on the stack, regardless of whether it's inlined or not.
Converting a heap allocated SmartString into a String and vice versa is also a zero cost
operation, as one will reuse the allocated memory of the other.
Copyright 2020 Bodil Stokke
This software is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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