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			15 lines
		
	
	
		
			407 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			407 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| contract B {
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|     uint immutable x;
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| 
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|     constructor(function() internal returns(uint) fp) internal {
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|         x = fp();
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|     }
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| }
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| 
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| contract C is B(C.f) {
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|     function f() internal returns(uint) { return x = 2; }
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| }
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| // ----
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| // TypeError: (200-201): Immutable variables can only be initialized inline or assigned directly in the constructor.
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| // TypeError: (200-201): Immutable state variable already initialized.
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