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			23 lines
		
	
	
		
			839 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			839 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
// aux-build:derive-b.rs
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#[macro_use]
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extern crate derive_b;
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#[B] //~ ERROR `B` is ambiguous
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     //~| WARN derive helper attribute is used before it is introduced
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     //~| WARN this was previously accepted
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#[C] //~ ERROR cannot find attribute `C` in this scope
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#[B(D)] //~ ERROR `B` is ambiguous
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        //~| WARN derive helper attribute is used before it is introduced
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        //~| WARN this was previously accepted
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#[B(E = "foo")] //~ ERROR `B` is ambiguous
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                //~| WARN derive helper attribute is used before it is introduced
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                //~| WARN this was previously accepted
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#[B(arbitrary tokens)] //~ ERROR `B` is ambiguous
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                       //~| WARN derive helper attribute is used before it is introduced
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                       //~| WARN this was previously accepted
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#[derive(B)]
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struct B;
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fn main() {}
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