Defew = Default + new()

Creates a new() constructor with specified default values for a struct.

use defew::Defew;

#[derive(Defew)]
struct Data {
    a: i32,
    #[new("ABC")]
    b: &'static str,
    #[new(Some(42))]
    c: Option<u64>,
}

let value = Data::new();
assert_eq!(value.a, 0);
assert_eq!(value.b, "ABC");
assert_eq!(value.c, Some(42));

#[derive(Defew)]
struct Values(#[new] i32, #[new(0.5)] f64);

let value = Values::new(42);
assert_eq!(value.0, 42);
assert_eq!(value.1, 0.5);

Changelog

See releases page

License

MIT OR Apache-2.0