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			18 lines
		
	
	
		
			383 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			383 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| //@ edition:2018
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| //@ run-pass
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| 
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| // Test member constraints that appear in the `impl Trait`
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| // return type of an async function.
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| // (This used to require a feature gate.)
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| 
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| trait Trait<'a, 'b> { }
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| impl<T> Trait<'_, '_> for T { }
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| 
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| async fn async_ret_impl_trait<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a, 'b> {
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|     (a, b)
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| }
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| 
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| fn main() {
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|     let _ = async_ret_impl_trait(&22, &44);
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| }
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