https://github.com/reem/rust-typemap

A typesafe store keyed by types and containing different types of values.
https://github.com/reem/rust-typemap

Last synced: 9 days ago
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A typesafe store keyed by types and containing different types of values.

• Host: GitHub
• URL: https://github.com/reem/rust-typemap
• Owner: reem
• Created: 2014-08-19T09:01:18.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2018-12-27T14:45:13.000Z (over 5 years ago)
• Last Synced: 2024-03-04T13:33:17.120Z (4 months ago)
• Language: Rust
• Homepage:
• Size: 53.7 KB
• Stars: 170
• Watchers: 8
• Forks: 30
• Open Issues: 8
• Metadata Files:
  • Readme: README.md

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• awesome-rust - reem/rust-typemap - ci.org/reem/rust-typemap.svg?branch=master">](https://travis-ci.org/reem/rust-typemap) (Libraries / Data structures)
• awesome-rust - reem/rust-typemap - ci.org/reem/rust-typemap.svg?branch=master">](https://travis-ci.org/reem/rust-typemap) (Libraries / Data structures)

README

        
# `TypeMap`

> A typesafe store keyed by types and containing different types of values.

## [Documentation](https://crates.fyi/crates/typemap/0.3.3)

It provides functionality similar to AnyMap, but is more flexible because it

allows for key-value pairs, rather than enforcing that keys and values are the

same type.

Key-value associations are defined through the `Key` trait, which uses an

associated type parameter and trait coherence rules to enforce the invariants

of `TypeMap`.

## Example

```rust

extern crate typemap;

use typemap::{TypeMap, Key};

struct KeyType;

#[derive(Debug, PartialEq)]

struct Value(i32);

impl Key for KeyType { type Value = Value; }

#[test] fn test_pairing() {

    let mut map = TypeMap::new();

    map.insert::(Value(42));

    assert_eq!(*map.get::().unwrap(), Value(42));

}

```