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			16 lines
		
	
	
		
			341 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			16 lines
		
	
	
		
			341 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| //@ force-host
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| //@ no-prefer-dynamic
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| 
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| #![crate_type = "proc-macro"]
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| 
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| extern crate proc_macro;
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| use proc_macro::*;
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| 
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| fn foo(arg: TokenStream) -> TokenStream {
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|     #[proc_macro]
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|     pub fn foo(arg: TokenStream) -> TokenStream { arg }
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|     //~^ ERROR functions tagged with `#[proc_macro]` must currently reside in the root of the crate
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| 
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|     arg
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| }
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