mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
14 lines
478 B
Solidity
14 lines
478 B
Solidity
// The constructor of a base class should not be visible in the derived class
|
|
contract A { constructor(string memory) public { } }
|
|
contract B is A {
|
|
function f() pure public {
|
|
A x = A(0); // convert from address
|
|
string memory y = "ab";
|
|
A(y); // call as a function is invalid
|
|
x;
|
|
}
|
|
}
|
|
// ----
|
|
// TypeError: (131-301): Contract "B" should be marked as abstract.
|
|
// TypeError: (250-254): Explicit type conversion not allowed from "string memory" to "contract A".
|