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			23 lines
		
	
	
		
			490 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			490 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| #![feature(generic_const_exprs)]
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| #![allow(incomplete_features)]
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| #![deny(where_clauses_object_safety)]
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| 
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| 
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| const fn bar<T: ?Sized>() -> usize { 7 }
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| 
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| trait Foo {
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|     fn test(&self) where [u8; bar::<Self>()]: Sized;
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|     //~^ ERROR the trait `Foo` cannot be made into an object
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|     //~| WARN this was previously accepted by the compiler but is being phased out
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| }
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| 
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| impl Foo for () {
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|     fn test(&self) where [u8; bar::<Self>()]: Sized {}
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| }
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| 
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| fn use_dyn(v: &dyn Foo) {
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|     v.test();
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| }
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| 
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| fn main() {}
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