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			14 lines
		
	
	
		
			205 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
		
			205 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| // check-pass
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| 
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| macro_rules! foo {
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|     ($(: $p:path)? $(: $l:lifetime)? ) => { bar! {$(: $p)? $(: $l)? } };
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| }
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| 
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| macro_rules! bar {
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|     ($(: $p:path)? $(: $l:lifetime)? ) => {};
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| }
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| 
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| foo! {: 'a }
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| 
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| fn main() {}
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