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			25 lines
		
	
	
		
			437 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			437 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| // build-pass (FIXME(62277): could be check-pass?)
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| // edition:2018
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| 
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| trait MyClosure {
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|     type Args;
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| }
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| 
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| impl<R> MyClosure for dyn FnMut() -> R
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| where R: 'static {
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|     type Args = ();
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| }
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| 
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| struct MyStream<C: ?Sized + MyClosure> {
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|     x: C::Args,
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| }
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| 
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| async fn get_future<C: ?Sized + MyClosure>(_stream: MyStream<C>) {}
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| 
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| async fn f() {
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|     let messages: MyStream<dyn FnMut()> = unimplemented!();
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|     get_future(messages).await;
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| }
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| 
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| fn main() {}
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