3Pool Convex Meta Vault
Abstract ERC-4626 vaults with DAI, USDC or USDT asset invested in Curve's 3Pool, and then the 3Pool LP token (3Crv) is invested in an underlying 3Pool-based (3Crv) Meta Vault.
Capabilities
ERC-4626 compliant tokenized vault.
ERC-20 compliant token.
Invests DAI, USDC or USDT in Curve's 3Pool and then invests the 3Crv LP token in an underlying ERC4626 vault.
Sandwich attack protection on ERC4626 operations
deposit
,mint
,withdraw
andredeem
.Vault operations are pausable by the
Governor
.Emergency asset recovery by the
Governor
. This will be removed after 2 months.Vault configuration is controlled by a protocol
Governor
. This includes:Setting the slippage limits for mint, deposit, redeem and withdraw.
Initially the
Governor
can upgrade the contracts via a proxy without a time delay. After 6 weeks, this will be changed to a one week time delay.
Contract Interface
See the metavaults github repository for contract diagrams and process diagrams.
See General ERC-4626 Vault Interface for the standard ERC-4626 functions.
Variables
BASIS_SCALE
Basis points calculation scale. 100% = 10000. 1% = 100
redeemSlippage
Redeem slippage in basis points i.e. 1% = 100
depositSlippage
Deposit slippage in basis points i.e. 1% = 100
withdrawSlippage
Withdraw slippage in basis points i.e. 1% = 100
mintSlippage
Mint slippage in basis points i.e. 1% = 100
assetScale
Scale of one asset. eg 1e18 if asset has 18 decimal places.
assetFromUsdScale
Converts USD value with 18 decimals back down to asset/vault scale. For example, convert 18 decimal USD value back down to USDC which only has 6 decimal places. Will be 1 for DAI, 1e12 for USDC and USDT.
threeCrvTokenScale
Scale of the Curve.fi 3Crv token. 1e18 = 18 decimal places
metaVault
Address of the underlying Meta Vault that implements ERC-4626.
assetPoolIndex
The index of underlying asset DAI, USDC or USDT in 3Pool. DAI = 0, USDC = 1 and USDT = 2
Functions
liquidateVault
Governor liquidates all the vault's assets and send to the governor. Only to be used in an emergency. eg whitehat protection against a hack.
Parameters
resetAllowances
Approves Curve's 3Pool contract to transfer assets (DAI, USDC or USDT) from this vault. Also approves the underlying Meta Vault to transfer 3Crv from this vault.
setRedeemSlippage
Governor function to set redeem slippage.
Parameters
setDepositSlippage
Governor function to set deposit slippage.
Parameters
setWithdrawSlippage
Governor function to set withdraw slippage.
Parameters
setMintSlippage
Governor function to set mint slippage.
Parameters
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