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40 lines
780 B
Rust
40 lines
780 B
Rust
// traits5.rs
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//
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// 您的任務是替換 '??' 部分以使代碼通過編譯。
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//
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// 除了標記的行外,不要更改任何行。
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//
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// 執行 `rustlings hint traits5` 或使用 `hint` watch 子命令來獲取提示。
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// I AM NOT DONE
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pub trait SomeTrait {
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fn some_function(&self) -> bool {
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true
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}
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}
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pub trait OtherTrait {
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fn other_function(&self) -> bool {
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true
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}
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}
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struct SomeStruct {}
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struct OtherStruct {}
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impl SomeTrait for SomeStruct {}
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impl OtherTrait for SomeStruct {}
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impl SomeTrait for OtherStruct {}
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impl OtherTrait for OtherStruct {}
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// 您只能更改下一行
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fn some_func(item: ??) -> bool {
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item.some_function() && item.other_function()
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}
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fn main() {
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some_func(SomeStruct {});
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some_func(OtherStruct {});
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}
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