WooFiSwapper

Git Source

Inherits: ERC20Selectors, Masks

Title: WooFi swapper contract

State Variables

REBATE_RECIPIENT

WooFi rebate receiver

address private constant REBATE_RECIPIENT = 0x0000000000000000000000000000000000000000

Functions

constructor

constructor() ;

_swapWooFiExactIn

Swaps exact input on WOOFi DEX

Pay flag: 0 = caller pays; 1 = contract pays; greater = pre-funded.

Note: calldata-offset-table:

Offset Length (bytes) Description
0 20 pool
20 1 pay flag <- 0: caller pays; 1: contract pays; greater: pre-funded 
function _swapWooFiExactIn(
    uint256 fromAmount,
    address tokenIn,
    address tokenOut,
    address receiver,
    address callerAddress,
    uint256 currentOffset
)
    internal
    returns (
        uint256 poolThenAmountOut,
        // first assign payFlag, then return offset
        uint256 payFlagCurrentOffset
    );

Parameters

Name Type Description
fromAmount uint256 Input amount
tokenIn address Input token address
tokenOut address Output token address
receiver address Receiver address
callerAddress address Address of the caller
currentOffset uint256 Current position in the calldata

Returns

Name Type Description
poolThenAmountOut uint256 Output amount
payFlagCurrentOffset uint256 Updated calldata offset after processing

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