2022-06-20 18:00:37 -05:00
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trait Stream {
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type Item;
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}
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impl<'a> Stream for &'a str {
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type Item = u8;
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}
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2017-08-29 04:32:10 -05:00
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fn f<'s>(s: &'s str) -> (&'s str, <&'s str as Stream>::Item) {
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(s, 42)
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}
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fn main() {
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let fx = f as for<'t> fn(&'t str) -> (&'t str, <&'t str as Stream>::Item);
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assert_eq!(fx("hi"), ("hi", 42));
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}
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