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firefox/third_party/rust/smart-default/examples/example.rs
Daniel Baumann 5e9a113729
Adding upstream version 140.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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Rust

use smart_default::SmartDefault;
#[derive(PartialEq, SmartDefault, Debug)]
#[allow(dead_code)]
enum Foo {
Bar,
#[default]
Baz {
#[default(12)]
a: i32,
b: i32,
#[default(Some(Default::default()))]
c: Option<i32>,
#[default(_code = "vec![1, 2, 3]")]
d: Vec<u32>,
#[default = "four"]
e: String,
},
Qux(i32),
}
fn main() {
assert!(
Foo::default()
== Foo::Baz {
a: 12,
b: 0,
c: Some(0),
d: vec![1, 2, 3],
e: "four".to_owned(),
}
);
}