EthAnchor Account Contract
EthAnchor Account contracts are user-specifically generated Ethereum smart contracts for interacting with Anchor Protocol from the Ethereum blockchain.
EthAnchor Account contracts only allow a single operation at a time, tracked by the ActionFlag state.
Emitted when wrapped UST is requested for deposit to Anchor via initDepositStable.
event InitDeposit(address indexed sender, uint256 amount, bytes32 to);
Emitted when wrapped aUST is claimed from Anchor via finishDepositStable.
event FinishDeposit(address indexed sender);
Emitted when wrapped aUST is requested for redemption to Anchor via initRedeemStable.
event InitRedemption(address indexed sender, uint256 amount, bytes32 to);
Emitted when wrapped UST is claimed from Anchor via finishRedeemStable.
event FinishRedemption(address indexed sender);
Emitted when aUST redemption fails due to a lack of stablecoin liquidity in the money market.
event FailureReported();
Emitted when emergencyWithdraw is activated for withdrawing ERC20 tokens from the contract.
event EmergencyWithdrawActivated(address tokenAddress, uint256 amount);
Accepts new wrapped UST deposits.
function initDepositStable(uint256 amount) public onlyAuthSender checkInit terraAddressSet
Prerequisite: must have called approve() for an allowance of at least amount for the wrapped UST contract, ActionFlag is set to false
Accepts: amount - how much UST to deposit
Updates: ActionFlag to true
Emits: InitDeposit
Claims resulting wrapped aUST after a successful deposit.
function finishDepositStable() function initDepositStable(uint256 amount) public onlyAuthSender checkInit terraAddressSet
Prerequisite: aUST balance of account-specific endpoint contract must be greater than 0, ActionFlag is set to true
Updates: sets ActionFlag to false, transfers all aUST balances from contract address to tx.origin
Emits: FinishDeposit
Accepts wrapped aUST for redemption back to wrapped UST.
function initRedeemStable(uint256 amount) public onlyAuthSender checkInit terraAddressSet
Prerequisite: must have called approve() for an allowance of at least amount for the wrapped aUST contract, ActionFlag is set to false
Accepts: amount - how much aUST to redeem back to UST
Updates: ActionFlag to trueIMPORTANT: aUST redemptions may fail if UST liquidity is low in the Terra side Anchor money market → be sure to check account contract balances & initRedeemStable() success parameters.
Emits: InitRedemption
Claims resulting wrapped UST after withdrawal.
function finishRedeemStable() public onlyAuthSender checkFinish terraAddressSet
Prerequisite: UST balance of account-specific endpoint contract must be greater than 0, ActionFlag is set to true
Updates: sets ActionFlag to false, transfers all UST balances from contract address to tx.origin
Emits: FinishRedemption
Reports any failures in-between init operations to allow the EthAnchor operator to return any funds, and reset ActionFlag back to false. Only callable by contract owner.
function reportFailure() public onlyController checkFinish
Prerequisite: UST balance of account-specific endpoint contract must be 0, ActionFlag is set to true
Updates: sets ActionFlag to false
Withdraws all balances of any ERC20 token from the contract. Only callable by contract owner.
function emergencyWithdraw(address _tokenAddress) public onlyController
Prerequisite: ERC20 token balances of token contract _tokenAddress at contract address must be greater than 0
Updates: transfers all ERC20 token balances of token contract _tokenAddress back to msg.sender