BalancerPCVDepositWeightedPool

Functions

constructor

function constructor(
    address _core,
    address _vault,
    address _rewards,
    bytes32 _poolId,
    uint256 _maximumSlippageBasisPoints,
    address _token,
    contract IOracle[] _tokenOracles
) public

Balancer PCV Deposit constructor

Parameters

Name	Type	Description
_core	address	Fei Core for reference
_vault	address	Balancer vault
_rewards	address	Balancer rewards (the MerkleOrchard)
_poolId	bytes32	Balancer poolId to deposit in
_maximumSlippageBasisPoints	uint256	Maximum slippage basis points when depositing
_token	address	Address of the ERC20 to manage / do accounting with
_tokenOracles	contract IOracle[]	oracle for price feeds of the tokens in pool

setOracle

function setOracle(
    address _token,
    address _newOracle
) external

sets the oracle for a token in this deposit

Parameters

Name	Type	Description
_token	address
_newOracle	address

balance

function balance() public returns (uint256)

returns total balance of PCV in the Deposit, expressed in "token"

resistantBalanceAndFei

function resistantBalanceAndFei() public returns (uint256 _resistantBalance, uint256 _resistantFei)

gets the resistant token balance and protocol owned fei of this deposit

balanceReportedIn

function balanceReportedIn() public returns (address)

display the related token of the balance reported

deposit

function deposit() external

withdraw

function withdraw(
    address to,
    uint256 amount
) external

withdraw tokens from the PCV allocation

Parameters

Name	Type	Description
to	address	the address to send PCV to
amount	uint256	of tokens withdrawn

Note: except for ERC20/FEI pool2s, this function will not withdraw tokens in the right proportions for the pool, so only use this to withdraw small amounts comparatively to the pool size. For large withdrawals, it is preferrable to use exitPool() and then withdrawERC20(). |

_readOracles

function _readOracles() internal returns (uint256[] underlyingPrices)

read token oracles and revert if one of them is invalid

_getBPTPrice

function _getBPTPrice(
    uint256[] underlyingPrices
) internal returns (uint256 bptPrice)

Calculates the value of Balancer pool tokens using the logic described here: https://docs.gyro.finance/learn/oracles/bpt-oracle This is robust to price manipulations within the Balancer pool. Courtesy of Gyroscope protocol, used with permission. See the original file here : https://github.com/gyrostable/core/blob/master/contracts/GyroPriceOracle.sol#L109-L167

Parameters

Name	Type	Description
underlyingPrices	uint256[]	= array of prices for underlying assets in the pool,
given in USD, on a base of 18 decimals.

Return Values

Name	Type	Description
bptPrice	uint256	= the price of balancer pool tokens, in USD, on a base
of 18 decimals.

Events

OracleUpdate

event OracleUpdate(
    address _sender,
    address _token,
    address _oldOracle,
    address _newOracle
)

Parameters

Name	Type	Description
_sender	address
_token	address
_oldOracle	address
_newOracle	address