Important
This repo is a fork of https://github.com/Manishearth/elsa. It supports a crate release which only increment on the original is a sync variant of the FrozenIndexMap and FrozenIndexSet data structures, used in Lurk.
This feature was PRed to upstream in Manishearth#67 and this crate should become obsolete if it merges.
🎵 Immutability never bothered me anyway 🎶
This crate provides various "frozen" collections.
These are append-only collections where references to entries can be held on to even across insertions. This is safe because these collections only support storing data that's present behind some indirection -- i.e. String, Vec<T>, Box<T>, etc, and they only yield references to the data behind the allocation (&str, &[T], and &T respectively)
The typical use case is having a global cache of strings or other data which the rest of the program borrows from.
cargo test --examples --features indexmap
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