mirror of
https://github.com/rust-lang/rust
synced 2024-10-14 04:23:37 +00:00
e7ad2da7f1
When given
```rust
trait SomeTrait {
type SomeType<'a>;
}
struct Foo<T: SomeTrait> {
x: for<'a> fn(T::SomeType<'a>)
}
```
expand to
```rust
impl<T: ::core::clone::Clone + SomeTrait> ::core::clone::Clone for Foo<T>
where for<'a> T::SomeType<'a>: ::core::clone::Clone {
#[inline]
fn clone(&self) -> Foo<T> {
Foo { x: ::core::clone::Clone::clone(&self.x) }
}
}
```
instead of the previous invalid
```
impl<T: ::core::clone::Clone + SomeTrait> ::core::clone::Clone for Foo<T>
where T::SomeType<'a>: ::core::clone::Clone {
#[inline]
fn clone(&self) -> Foo<T> {
Foo { x: ::core::clone::Clone::clone(&self.x) }
}
}
```
Fix #122622.
14 lines
271 B
Rust
14 lines
271 B
Rust
//@ run-pass
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// Issue #122622: `#[derive(Clone)]` should work for HRTB function type taking an associated type
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#![allow(dead_code)]
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trait SomeTrait {
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type SomeType<'a>;
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}
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#[derive(Clone)]
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struct Foo<T: SomeTrait> {
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x: for<'a> fn(T::SomeType<'a>)
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}
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fn main() {}
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