mirror of https://github.com/rust-lang/rust
19 lines
312 B
Rust
19 lines
312 B
Rust
//@ check-pass
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pub trait Reader {}
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enum Wrapper<'a> {
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WrapReader(&'a (dyn Reader + 'a))
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}
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trait Wrap<'a> {
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fn wrap(self) -> Wrapper<'a>;
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}
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impl<'a, R: Reader> Wrap<'a> for &'a mut R {
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fn wrap(self) -> Wrapper<'a> {
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Wrapper::WrapReader(self as &'a mut dyn Reader)
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}
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}
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pub fn main() {}
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