BalancerMetaPoolStrategy

constructor

constructor(struct InitializableAbstractStrategy.BaseStrategyConfig _stratConfig, struct BaseBalancerStrategy.BaseBalancerConfig _balancerConfig, address _auraRewardPoolAddress) public

deposit

function deposit(address, uint256) external

There are no plans to configure BalancerMetaPool as a default asset strategy. For that reason there is no need to support this functionality.

deposit

function deposit(address[], uint256[]) external

There are no plans to configure BalancerMetaPool as a default asset strategy. For that reason there is no need to support this functionality.

depositAll

function depositAll() external

Deposits all supported assets in this strategy contract to the Balancer pool.

_deposit

function _deposit(address[] _strategyAssets, uint256[] _strategyAmounts) internal

withdraw

function withdraw(address _recipient, address _strategyAsset, uint256 _strategyAmount) external

Withdraw a Vault collateral asset from the Balancer pool.

Parameters

Name	Type	Description
_recipient	address	Address to receive the Vault collateral assets. Typically is the Vault.
_strategyAsset	address	Address of the Vault collateral asset
_strategyAmount	uint256	The amount of Vault collateral assets to withdraw

withdraw

function withdraw(address _recipient, address[] _strategyAssets, uint256[] _strategyAmounts) external

Withdraw multiple Vault collateral asset from the Balancer pool.

Parameters

Name	Type	Description
_recipient	address	Address to receive the Vault collateral assets. Typically is the Vault.
_strategyAssets	address[]	Addresses of the Vault collateral assets
_strategyAmounts	uint256[]	The amounts of Vault collateral assets to withdraw

_withdraw

function _withdraw(address _recipient, address[] _strategyAssets, uint256[] _strategyAmounts) internal

Withdraw multiple Vault collateral asset from the Balancer pool.

Parameters

Name	Type	Description
_recipient	address	Address to receive the Vault collateral assets. Typically is the Vault.
_strategyAssets	address[]	Addresses of the Vault collateral assets
_strategyAmounts	uint256[]	The amounts of Vault collateral assets to withdraw _withdrawal doesn't require a read-only re-entrancy protection since during the withdrawal the function enters the Balancer Vault Context. If this function were called as part of the attacking contract (while intercepting execution flow upon receiving ETH) the read-only protection of the Balancer Vault would be triggered. Since the attacking contract would already be in the Balancer Vault context and wouldn't be able to enter it again.

withdrawAll

function withdrawAll() external

Withdraws all supported Vault collateral assets from the Balancer pool and send to the OToken's Vault.

Is only executable by the OToken's Vault or the Governor.

safeApproveAllTokens

function safeApproveAllTokens() external

Approves the Balancer Vault to transfer poolAsset counterparts of all of the supported assets from this strategy. E.g. stETH is a supported strategy and Balancer Vault gets unlimited approval to transfer wstETH.

If Balancer pool uses a wrapped version of a supported asset then also approve unlimited usage of an asset to the contract responsible for wrapping.

Approve unlimited spending by Balancer Vault and Aura reward pool of the pool BPT tokens.

Is only executable by the Governor.

_abstractSetPToken

function _abstractSetPToken(address _asset, address) internal

_approveAsset

function _approveAsset(address _asset) internal

Approves the Balancer Vault to transfer an asset from this strategy. The assets could be a Vault collateral asset like WETH or rETH; or a Balancer pool asset that wraps the vault asset like wstETH or sfrxETH.

_getRateProviderRate

function _getRateProviderRate(address _asset) internal view returns (uint256)

Returns the rate supplied by the Balancer configured rate provider. Rate is used to normalize the token to common underlying pool denominator. (ETH for ETH Liquid staking derivatives)

Parameters

Name	Type	Description
_asset	address	Address of the Balancer pool asset

Return Values

Name	Type	Description
[0]	uint256	rate of the corresponding asset