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			39 lines
		
	
	
	
		
			630 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
	
		
			630 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| // $G $D/$F.go && $L $F.$A && ! ./$A.out || echo BUG: should crash
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| 
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| // Copyright 2009 The Go Authors. All rights reserved.
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| // Use of this source code is governed by a BSD-style
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| // license that can be found in the LICENSE file.
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| 
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| package main
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| 
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| type T struct {a, b int};
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| 
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| func f(x interface{}) interface{} {
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| 	type T struct {a, b int};
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| 
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| 	if x == nil {
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| 		return T{2, 3};
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| 	}
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| 
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| 	t := x.(T);
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| 	println(t.a, t.b);
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| 	return x;
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| }
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| 
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| func main() {
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| 	inner_T := f(nil);
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| 	f(inner_T);
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| 
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| 	outer_T := T{5, 7};
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| 	f(outer_T);
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| }
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| 
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| /*
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| This prints:
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| 
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| 2 3
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| 5 7
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| 
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| but it should crash: The type assertion on line 14 should fail
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| for the 2nd call to f with outer_T.
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| */
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