Address.toPayable()

[nventuro]

🧐 Motivation
As seen in this StackOverflow question, there's no easy (reasonable) way to convert an address into an address payable. This was confirmed by the Solidity team on gitter. We should provide a simple wrapper for this ugly conversion.

📝 Details
This would simply be a new internal pure function in Address, that takes an address and returns address payable. In order to do the conversion, we must first cast the address type into uint160.

[Skyge]

Yeah, in Solidity 0.5, this is one of the breaking changes, but for some developers including myself, we just use like this address(uint160(_owner)) to make it become address payable, so it is really a good proposal to provide a simple wrapper.

[pokcup]

ใช่ใน Solidity 0.5 นี่เป็นหนึ่งในการเปลี่ยนแปลงที่ไม่หยุดยั้ง แต่สำหรับนักพัฒนาบางคนรวมถึงตัวฉันเองเราแค่ใช้สิ่งนี้address(uint160(_owner))เพื่อทำให้มันกลายเป็นaddress payableจริงดังนั้นจึงเป็นข้อเสนอที่ดีที่จะให้เสื้อคลุมเรียบง่าย

[Skyge]

@pokcup It is really hard for me to understand your words, could you please use the English?

[nventuro]

@pokcup ยินดีต้อนรับ! Please write in English when communicating over this medium :)

[yopereir]

Would the solution be a function like this within Address.sol ?

    //@dev Converts an address to address payable.
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

[frangio]

@RCYP Yes, though @Skyge is already working on this, see #1773.