1 unstable release
0.4.0 | Nov 20, 2023 |
---|
#35 in #down
Used in merge-rs
7KB
119 lines
merge-rs
A small library that cuts down on the amount of code required to merge two arbitrary structs into a new struct.
[dependencies]
merge-rs = "0.4"
Example
fn special_concat(left: &str, right: &String) -> Result<String, Box<Error>> {
Ok(format!("{left}_{right}"))
}
#[derive(Debug, Merge)]
struct MyType {
#[merge_field(skip)]
transient_field: usize,
#[merge_field(strategy = "special_concat")]
label: String
}
fn main() {
let first = MyType { transient_field: 123, label: "first".to_owned() };
let second = MyType { transient_field: 456, label: "second".to_owned() };
let merged = first.merge(&second).unwrap();
println!("{merged:?}")
}
Contributors
- Dan Hable dan@danhable.com
Dependencies
~0.6–1MB
~23K SLoC