mirror of https://github.com/rust-lang/rust
22 lines
505 B
Rust
22 lines
505 B
Rust
trait X<'a, T>
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where
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for<'b> T: X<'b, T>,
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for<'b> <T as X<'b, T>>::U: Clone,
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{
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type U: ?Sized;
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fn f(x: &<T as X<'_, T>>::U) {
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<<T as X<'_, T>>::U>::clone(x);
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}
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}
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impl<S, T> X<'_, T> for (S,) {
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//~^ ERROR the trait bound `for<'b> T: X<'b, T>` is not satisfied
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type U = str;
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}
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pub fn main() {
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<(i32,) as X<i32>>::f("abc");
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//~^ ERROR the trait bound `for<'b> i32: X<'b, i32>` is not satisfied
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//~| ERROR the trait bound `i32: X<'_, i32>` is not satisfied
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}
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