Contract Type Cont..md

83 - Contract Type Continued

Every contract defines its own type. Contracts can be explicitly converted to and from the address type. Contract types do not support any operators. The members of contract types are the external functions of the contract including any state variables marked as public.

---

Slide Screenshot

---

Slide Deck

• type(X)
• X -> Contract
• type(C).name -> Contract Name
• type(C).creationCode
• type(C).runtimeCode

---

References

• Youtube Reference

---

Code Examples

contract C {
			string public nameAccessor = type(C).name;
			string public constant constantNameAccessor = type(C).name;

			function name() public virtual returns (string memory) {
				return type(C).name;
			}
		}
contract D is C {
	function name() public override pure returns (string memory) {
		return type(D).name;
	}
	function name2() public pure returns (string memory) {
		return type(C).name;
}

function getCreationCode() public returns(bytes memory){
        address addr;
        bytes memory code = type(F).creationCode;
        return code;
    }

}

contract F {
    constructor() public payable {}

    function destroy(address payable inheritor) external {
        selfdestruct(inheritor);
    }
}