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13 lines
218 B
Rust
13 lines
218 B
Rust
// check-pass
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pub trait Handler {
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fn handle(&self, _: &mut String);
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}
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impl<F> Handler for F where F: for<'a, 'b> Fn(&'a mut String) {
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fn handle(&self, st: &mut String) {
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self(st)
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}
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}
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fn main() {}
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