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			37 lines
		
	
	
		
			509 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			509 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| #![allow(unused_variables)]
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| #![deny(dead_code)]
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| #![feature(rustc_attrs)]
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| 
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| struct Foo;
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| 
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| trait Bar {
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|     fn bar1(&self);
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|     fn bar2(&self) {
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|         self.bar1();
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|     }
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| }
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| 
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| impl Bar for Foo {
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|     fn bar1(&self) {
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|         live_fn();
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|     }
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| }
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| 
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| fn live_fn() {}
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| 
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| fn dead_fn() {} //~ ERROR: function `dead_fn` is never used
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| 
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| fn used_fn() {}
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| 
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| #[rustc_main]
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| fn actual_main() {
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|     used_fn();
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|     let foo = Foo;
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|     foo.bar2();
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| }
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| 
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| // this is not main
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| fn main() { //~ ERROR: function `main` is never used
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|     dead_fn();
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| }
 | 
