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https://github.com/KaiserY/trpl-zh-cn
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28 lines
372 B
Rust
Executable File
28 lines
372 B
Rust
Executable File
// ANCHOR: here
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use std::ops::Deref;
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impl<T> Deref for MyBox<T> {
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type Target = T;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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// ANCHOR_END: here
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struct MyBox<T>(T);
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impl<T> MyBox<T> {
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fn new(x: T) -> MyBox<T> {
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MyBox(x)
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}
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}
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fn main() {
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let x = 5;
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let y = MyBox::new(x);
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assert_eq!(5, x);
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assert_eq!(5, *y);
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}
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