patchable_core/
lib.rs

1//! Trait(s) for patchable structs in Rust.
2//! You probably want [`patchable`](https://docs.rs/patchable) instead, for derive functionality.
3
4/// Trait to indicate that a type can be patched.
5pub trait Patchable<P> {
6    fn apply_patch(&mut self, patch: P);
7}
8
9impl<T> Patchable<Option<T>> for T {
10    fn apply_patch(&mut self, patch: Option<T>) {
11        if let Some(inner) = patch {
12            *self = inner;
13        }
14    }
15}
16
17impl<T, P> Patchable<Vec<P>> for T where T: Patchable<P> {
18    fn apply_patch(&mut self, patches: Vec<P>) {
19        for patch in patches {
20            self.apply_patch(patch);
21        }
22    }
23}