IZap

Interface for Zap contract

Defines functions to add and remove liquidity with wrapping/unwrapping in one transaction

Functions

zapIn

Add liquidity to SPA and automatically wrap LP tokens

function zapIn(
    address spa,
    address wlp,
    address receiver,
    uint256 minMintAmount,
    uint256[] calldata amounts
)
    external
    returns (uint256 wlpAmount);

Parameters

Name	Type	Description
`spa`	`address`	Address of the SPA contract
`wlp`	`address`	Address of the wrapped LP token contract
`receiver`	`address`	Address to receive the wrapped LP tokens
`minMintAmount`	`uint256`	Minimum amount of LP tokens to receive
`amounts`	`uint256[]`	Array of token amounts to add

Returns

Name	Type	Description
`wlpAmount`	`uint256`	Amount of wrapped LP tokens minted

zapOut

Remove liquidity from SPA by unwrapping LP tokens first

function zapOut(
    address spa,
    address wlp,
    address receiver,
    uint256 wlpAmount,
    uint256[] calldata minAmountsOut,
    bool proportional
)
    external
    returns (uint256[] memory amounts);

Parameters

Name	Type	Description
`spa`	`address`	Address of the SPA contract
`wlp`	`address`	Address of the wrapped LP token contract
`receiver`	`address`	Address to receive the tokens
`wlpAmount`	`uint256`	Amount of wrapped LP tokens to redeem
`minAmountsOut`	`uint256[]`	Minimum amounts of tokens to receive
`proportional`	`bool`	If true, withdraws proportionally; if false, uses minAmountsOut

Returns

Name	Type	Description
`amounts`	`uint256[]`	Array of token amounts received

zapOutSingle

Unwrap wLP tokens and redeem a single asset

function zapOutSingle(
    address spa,
    address wlp,
    address receiver,
    uint256 wlpAmount,
    uint256 tokenIndex,
    uint256 minAmountOut
)
    external
    returns (uint256 amount);

Parameters

Name	Type	Description
`spa`	`address`	Address of the SPA contract
`wlp`	`address`	Address of the wrapped LP token contract
`receiver`	`address`	Address to receive the tokens
`wlpAmount`	`uint256`	Amount of wrapped LP tokens to redeem
`tokenIndex`	`uint256`	Index of the token to receive
`minAmountOut`	`uint256`	Minimum amount of token to receive

Returns

Name	Type	Description
`amount`	`uint256`	Amount of token received

recoverERC20

Recover tokens accidentally sent to this contract

function recoverERC20(address token, uint256 amount, address to) external;

Parameters

Name	Type	Description
`token`	`address`	Address of the token to recover
`amount`	`uint256`	Amount to recover
`to`	`address`	Address to send the tokens to

Events

ZapIn

event ZapIn(
    address indexed spa, address indexed user, address indexed receiver, uint256 wlpAmount, uint256[] inputAmounts
);

ZapOut

event ZapOut(
    address indexed spa,
    address indexed user,
    address indexed receiver,
    uint256 wlpAmount,
    uint256[] outputAmounts,
    bool proportional
);