mirror of https://github.com/rust-lang/rust
31 lines
689 B
Rust
31 lines
689 B
Rust
// Test that we don't get an error with `dyn Bar` in an impl Trait
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// when there are multiple inputs. The `dyn Bar` should default to `+
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// 'static`. This used to erroneously generate an error (cc #62517).
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//
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//@ revisions: current next
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//@[next] compile-flags: -Znext-solver
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@ check-pass
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trait Foo {
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type Item: ?Sized;
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fn item(&self) -> Box<Self::Item> { panic!() }
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}
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trait Bar { }
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impl<T> Foo for T {
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type Item = dyn Bar;
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}
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fn is_static<T>(_: T) where T: 'static { }
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fn bar(x: &str) -> &impl Foo<Item = dyn Bar> { &() }
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fn main() {
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let s = format!("foo");
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let r = bar(&s);
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is_static(r.item());
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}
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