BalancerV2Quoter

Git Source

Inherits: Masks

Title: Balancer V2 quoter contract

Balancer V2 is fun (mostly)

Functions

_getBalancerAmountOut

Call queryBatchSwap on the Balancer V2 vault.

Should be avoided if possible as it executes (but reverts) state changes in the balancer vault Executes call and therefore is non-view Will allow to save a refund transfer since we calculate the exact amount Since we check slippage manually, the concerns mentioned in https://docs.balancer.fi/reference/contracts/query-functions.html do not apply.

Note: calldata-offset-table:

Offset Length (bytes) Description
0 32 poolId
32 20 vault
52 1 payFlag
function _getBalancerAmountOut(
    address tokenIn,
    address tokenOut,
    uint256 amountIn,
    uint256 currentOffset //
)
    internal
    returns (uint256 amountOut, uint256);

Parameters

Name Type Description
tokenIn address Input token address
tokenOut address Output token address
amountIn uint256 Input amount
currentOffset uint256 Current position in the calldata

Returns

Name Type Description
amountOut uint256 Output amount
<none> uint256 Updated calldata offset after processing

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