This experiment updates the canonical "Wrapped Ether" WETH(9) contract by implementing it in modern Vyper with several improvements for gas savings purposes. We also compare it to the WETH(10) project as another attempt to make an upgrade to WETH(9).
Any operation that ends with this contract holding Wrapped Ether is prohibited.
deposit Ether in this contract to receive Wrapped Ether (WETH), which implements the ERC20 standard. WETH is interchangeable with Ether in a 1:1 basis.
withdraw Ether from this contract by unwrapping WETH from your wallet.
When an account's allowance is set to max(uint256) it will not decrease through transferFrom or withdrawFrom calls.
WETH10 implements EIP2612 to set approvals through off-chain signatures.
The original WETH(9) contract uses "Kelvin Versioning", which is a unique way to do software versioning such that versions start at a high number and count down to version 0, at which point the software is considered finished and no further modifications are made. In the spirit of that original, we are decrementing this number by 1 to indicate the level of progress this implementation is making towards a final, more immutable copy.
This contract is deployed on Goerli at: 0xD2082D10e36b169f4F2331867dcc1A719297037e
This project draws singificant inspiration from WETH(10) both in terms of goals and several of the upgrades that are applied.
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