ApproveAndCall

Allows callers to approve the DragonswapV2 position manager from this contract, for any token, and then make calls into the position manager

Functions

tryApprove

function tryApprove(address token, uint256 amount) private returns (bool);

getApprovalType

Lens to be called off-chain to determine which (if any) of the relevant approval functions should be called

function getApprovalType(address token, uint256 amount) external override returns (ApprovalType);

Parameters

Name	Type	Description
token	address	The token to approve
amount	uint256	The amount to approve

Returns

Name	Type	Description
<none>	ApprovalType	The required approval type

approveMax

Approves a token for the maximum possible amount

function approveMax(address token) external payable override;

Parameters

Name	Type	Description
token	address	The token to approve

approveMaxMinusOne

Approves a token for the maximum possible amount minus one

function approveMaxMinusOne(address token) external payable override;

Parameters

Name	Type	Description
token	address	The token to approve

approveZeroThenMax

Approves a token for zero, then the maximum possible amount

function approveZeroThenMax(address token) external payable override;

Parameters

Name	Type	Description
token	address	The token to approve

approveZeroThenMaxMinusOne

Approves a token for zero, then the maximum possible amount minus one

function approveZeroThenMaxMinusOne(address token) external payable override;

Parameters

Name	Type	Description
token	address	The token to approve

callPositionManager

Calls the position manager with arbitrary calldata

function callPositionManager(bytes memory data) public payable override returns (bytes memory result);

Parameters

Name	Type	Description
data	bytes	Calldata to pass along to the position manager

Returns

Name	Type	Description
result	bytes	The result from the call

balanceOf

function balanceOf(address token) private view returns (uint256);

mint

Calls the position manager's mint function

function mint(MintParams calldata params) external payable override returns (bytes memory result);

Parameters

Name	Type	Description
params	MintParams	Calldata to pass along to the position manager

Returns

Name	Type	Description
result	bytes	The result from the call

increaseLiquidity

Calls the position manager's increaseLiquidity function

function increaseLiquidity(IncreaseLiquidityParams calldata params)
    external
    payable
    override
    returns (bytes memory result);

Parameters

Name	Type	Description
params	IncreaseLiquidityParams	Calldata to pass along to the position manager

Returns

Name	Type	Description
result	bytes	The result from the call