Merging upstream version 1.69.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 0 deletions

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+## elsa
+
+[![Build Status](https://travis-ci.org/Manishearth/elsa.svg?branch=master)](https://travis-ci.org/Manishearth/elsa)
+[![Current Version](https://img.shields.io/crates/v/elsa.svg)](https://crates.io/crates/elsa)
+[![License: MIT/Apache-2.0](https://img.shields.io/crates/l/elsa.svg)](#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
+```