20 lines
347 B
Rust
20 lines
347 B
Rust
// run-pass
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#![feature(specialization)]
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trait Iterate<'a> {
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type Ty: Valid;
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fn iterate(self);
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}
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impl<'a, T> Iterate<'a> for T where T: Check {
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default type Ty = ();
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default fn iterate(self) {}
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}
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trait Check {}
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impl<'a, T> Check for T where <T as Iterate<'a>>::Ty: Valid {}
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trait Valid {}
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fn main() {
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Iterate::iterate(0);
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}
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