mirror of
https://github.com/rust-lang/rust
synced 2024-09-06 01:11:17 +00:00
26 lines
444 B
Rust
26 lines
444 B
Rust
//@ run-pass
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#![allow(dead_code)]
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trait Trait<T> {
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fn f(&self, x: T);
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}
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#[derive(Copy, Clone)]
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struct Struct {
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x: isize,
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y: isize,
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}
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impl Trait<&'static str> for Struct {
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fn f(&self, x: &'static str) {
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println!("Hi, {}!", x);
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}
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}
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pub fn main() {
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let a = Struct { x: 1, y: 2 };
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let b: Box<dyn Trait<&'static str>> = Box::new(a);
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b.f("Mary");
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let c: &dyn Trait<&'static str> = &a;
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c.f("Joe");
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}
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