1 unstable release
0.1.0 | Jul 1, 2021 |
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#60 in #results
6KB
56 lines
function_cache
function_cache
is a simple generic wrapper around a function that caches results for a given input to a hash map.
It is based on the example from chapter 13.1 of the Rust book and serves as a small example for me to better understand the Cargo package ecosystem!
Install
To install, simple add the function_cache
crate your Cargo.toml
file:
[dependencies]
function_cache = "0.1.0"
Example
CachedFunction
instances can be created with the new
static method, which takes a closure.
The underlying value can be accessed with the value(arg)
method.
let mut cached_function = CachedFunction::new(|x: i32| {
thread::sleep(Duration::from_secs(5));
x
});
let not_cached = cached_function.value(2); // returns 2, after 5 seconds
let cached = cached_function.value(2); // returns 2, but much quicker!
License
Distributed under the MIT License. See LICENSE.md
for more information.