mirror of
				https://github.com/ethereum/solidity
				synced 2023-10-03 13:03:40 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			33 lines
		
	
	
		
			744 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
		
			744 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| contract A {
 | |
| 	function f() public virtual returns (uint256 r) {
 | |
| 		return 1;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| 
 | |
| contract B is A {
 | |
| 	function f() public virtual override returns (uint256 r) {
 | |
| 		return super.f() + 2;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| 
 | |
| contract C is A {
 | |
| 	function f() public virtual override returns (uint256 r) {
 | |
| 		return super.f() + 4;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| 
 | |
| contract D is B, C {
 | |
| 	function f() public override(B, C) returns (uint256 r) {
 | |
| 		r = super.f() + 8;
 | |
| 		assert(r == 15); // should hold
 | |
| 		assert(r == 13); // should fail
 | |
| 	}
 | |
| }
 | |
| // ====
 | |
| // SMTEngine: all
 | |
| // ----
 | |
| // Warning 6328: (437-452): CHC: Assertion violation happens here.\nCounterexample:\n\nr = 15\n\nTransaction trace:\nD.constructor()\nD.f()\n    C.f() -- internal call\n        B.f() -- internal call\n            A.f() -- internal call
 |