1 stable release
1.0.0 | Aug 1, 2019 |
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#56 in #ownership
Used in 2 crates
(via trapper)
5KB
65 lines
trapper
A simple Rust library for creating transparent newtypes that don't require ownership to be used.
Example
use trapper::{Wrapper, newtype};
newtype!(#[derive(PartialEq, Debug)] type NumberWrapper(i32));
fn foo(r: &i32, m: &mut i32) {
let ref_wrapper: &NumberWrapper = NumberWrapper::wrap_ref(r);
let mut_wrapper: &mut NumberWrapper = NumberWrapper::wrap_mut(m);
}
let mut wrapper = NumberWrapper::wrap(12);
*wrapper.unwrap_mut() = 13;
assert_eq!(wrapper, NumberWrapper::wrap(13));
Dependencies
~2MB
~46K SLoC