mirror of https://github.com/rust-lang/rust
24 lines
492 B
Rust
24 lines
492 B
Rust
// Test that `impl Alpha<dyn Object>` resets the object-lifetime
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// default to `'static`.
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//
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//@ check-pass
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trait Alpha<Item: ?Sized> {
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fn item(&self) -> Box<Item> {
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panic!()
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}
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}
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trait Object {}
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impl<T> Alpha<dyn Object> for T {}
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fn alpha(x: &str, y: &str) -> impl Alpha<dyn Object> { () }
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fn is_static<T>(_: T) where T: 'static { }
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fn bar(x: &str) -> &impl Alpha<dyn Object> { &() }
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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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