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			26 lines
		
	
	
		
			446 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			446 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
// run-pass
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#![allow(incomplete_features)]
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#![feature(unsized_locals)]
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pub trait Foo {
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    fn foo(self) -> String;
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}
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struct A;
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impl Foo for A {
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    fn foo(self) -> String {
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        format!("hello")
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    }
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}
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fn main() {
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    let x = *(Box::new(A) as Box<dyn Foo>);
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    assert_eq!(x.foo(), format!("hello"));
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    // I'm not sure whether we want this to work
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    let x = Box::new(A) as Box<dyn Foo>;
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    assert_eq!(x.foo(), format!("hello"));
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}
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