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			10 lines
		
	
	
		
			211 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			10 lines
		
	
	
		
			211 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| interface A {
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|     function foo() external returns (uint);
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| }
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| interface B {}
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| contract X is A {
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| 	uint public override(A, B) foo;
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| }
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| // ----
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| // TypeError: (106-120): Invalid contract specified in override list: "B".
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