| ## elsa |
| |
| [](https://travis-ci.org/Manishearth/elsa) |
| [](https://crates.io/crates/elsa) |
| [](#license) |
| |
| _🎵 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. |
| |
| ### Running all examples |
| |
| ```bash |
| cargo test --examples --features indexmap |
| ``` |
