3 unstable releases
0.2.1 | Apr 25, 2020 |
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0.2.0 | Apr 25, 2020 |
0.1.0 | Feb 8, 2019 |
#1915 in Rust patterns
Used in git-remote-k8s
4KB
71 lines
default! macro for Rust
Sometimes you want to create nested structures, set values for some the fields and use default value for most of the other, for example:
use default_macro::default;
#[derive(Default)]
struct Window { title: &str, border: Border, /* 10 other fields */ }
#[derive(Default)]
struct Border { width: f64, /* 5 other fields*/ }
fn foo() {
let w1 = Window {
title: "Test",
border: Border {
width: 10.0,
..Border::Default},
..Window::default()
};
// with the macros:
let w2 = default!( Window {
title: "Test",
border: Border { width: 10.0}
});
}