NonfungiblePositionManager
NFT positions
Wraps Algebra positions in the ERC721 non-fungible token interface
Developer note: Credit to Uniswap Labs under GPL-2.0-or-later license: https://github.com/Uniswap/v3-periphery
Modifiers
isAuthorizedForToken
modifier isAuthorizedForToken(uint256 tokenId) internal
tokenId
uint256
Variables
address farmingCenter
Developer note: The address of the farming center contract, which handles farmings logic
mapping(uint256 => address) farmingApprovals
Developer note: mapping tokenId => farmingCenter
mapping(uint256 => address) tokenFarmedIn
Developer note: mapping tokenId => farmingCenter
bytes32 NONFUNGIBLE_POSITION_MANAGER_ADMINISTRATOR_ROLE constant
Functions
constructor
constructor(address _factory, address _WNativeToken, address _tokenDescriptor_, address _poolDeployer) public public
_factory
address
_WNativeToken
address
tokenDescriptor
address
_poolDeployer
address
positions
function positions(uint256 tokenId) external view returns (uint88 nonce, address operator, address token0, address token1, int24 tickLower, int24 tickUpper, uint128 liquidity, uint256 feeGrowthInside0LastX128, uint256 feeGrowthInside1LastX128, uint128 tokensOwed0, uint128 tokensOwed1) view external
Returns the position information associated with a given token ID. Developer note: Throws if the token ID is not valid.
tokenId
uint256
The ID of the token that represents the position
Returns:
nonce
uint88
The nonce for permits
operator
address
The address that is approved for spending
token0
address
The address of the token0 for a specific pool
token1
address
The address of the token1 for a specific pool
tickLower
int24
The lower end of the tick range for the position
tickUpper
int24
The higher end of the tick range for the position
liquidity
uint128
The liquidity of the position
feeGrowthInside0LastX128
uint256
The fee growth of token0 as of the last action on the individual position
feeGrowthInside1LastX128
uint256
The fee growth of token1 as of the last action on the individual position
tokensOwed0
uint128
The uncollected amount of token0 owed to the position as of the last computation
tokensOwed1
uint128
The uncollected amount of token1 owed to the position as of the last computation
mint
function mint(struct INonfungiblePositionManager.MintParams params) external payable returns (uint256 tokenId, uint128 liquidity, uint256 amount0, uint256 amount1) payable external
Creates a new position wrapped in a NFT Developer note: Call this when the pool does exist and is initialized. Note that if the pool is created but not initialized a method does not exist, i.e. the pool is assumed to be initialized.
params
struct INonfungiblePositionManager.MintParams
The params necessary to mint a position, encoded as `MintParams` in calldata
Returns:
tokenId
uint256
The ID of the token that represents the minted position
liquidity
uint128
The amount of liquidity for this position
amount0
uint256
The amount of token0
amount1
uint256
The amount of token1
tokenURI
function tokenURI(uint256 tokenId) public view returns (string) view public
tokenId
uint256
Returns:
[0]
string
baseURI
function baseURI() public pure returns (string) pure public
Returns:
[0]
string
increaseLiquidity
function increaseLiquidity(struct INonfungiblePositionManager.IncreaseLiquidityParams params) external payable returns (uint128 liquidity, uint256 amount0, uint256 amount1) payable external
Increases the amount of liquidity in a position, with tokens paid by the `msg.sender`
params
struct INonfungiblePositionManager.IncreaseLiquidityParams
tokenId The ID of the token for which liquidity is being increased, amount0Desired The desired amount of token0 to be spent, amount1Desired The desired amount of token1 to be spent, amount0Min The minimum amount of token0 to spend, which serves as a slippage check, amount1Min The minimum amount of token1 to spend, which serves as a slippage check, deadline The time by which the transaction must be included to effect the change
Returns:
liquidity
uint128
The new liquidity amount as a result of the increase
amount0
uint256
The amount of token0 to achieve resulting liquidity
amount1
uint256
The amount of token1 to achieve resulting liquidity
decreaseLiquidity
function decreaseLiquidity(struct INonfungiblePositionManager.DecreaseLiquidityParams params) external payable returns (uint256 amount0, uint256 amount1) payable external
Decreases the amount of liquidity in a position and accounts it to the position
params
struct INonfungiblePositionManager.DecreaseLiquidityParams
tokenId The ID of the token for which liquidity is being decreased, amount The amount by which liquidity will be decreased, amount0Min The minimum amount of token0 that should be accounted for the burned liquidity, amount1Min The minimum amount of token1 that should be accounted for the burned liquidity, deadline The time by which the transaction must be included to effect the change
Returns:
amount0
uint256
The amount of token0 accounted to the position's tokens owed
amount1
uint256
The amount of token1 accounted to the position's tokens owed
collect
function collect(struct INonfungiblePositionManager.CollectParams params) external payable returns (uint256 amount0, uint256 amount1) payable external
Collects up to a maximum amount of fees owed to a specific position to the recipient
params
struct INonfungiblePositionManager.CollectParams
tokenId The ID of the NFT for which tokens are being collected, recipient The account that should receive the tokens, amount0Max The maximum amount of token0 to collect, amount1Max The maximum amount of token1 to collect
Returns:
amount0
uint256
The amount of fees collected in token0
amount1
uint256
The amount of fees collected in token1
burn
function burn(uint256 tokenId) external payable payable external
Burns a token ID, which deletes it from the NFT contract. The token must have 0 liquidity and all tokens must be collected first.
tokenId
uint256
The ID of the token that is being burned
approveForFarming
function approveForFarming(uint256 tokenId, bool approve) external payable payable external
Changes approval of token ID for farming.
tokenId
uint256
The ID of the token that is being approved / unapproved
approve
bool
New status of approval
switchFarmingStatus
function switchFarmingStatus(uint256 tokenId, bool toFarming) external external
Changes farming status of token to 'farmed' or 'not farmed' Developer note: can be called only by farmingCenter
tokenId
uint256
tokenId The ID of the token
toFarming
bool
setFarmingCenter
function setFarmingCenter(address newFarmingCenter) external external
Changes address of farmingCenter Developer note: can be called only by factory owner or NONFUNGIBLE_POSITION_MANAGER_ADMINISTRATOR_ROLE
newFarmingCenter
address
The new address of farmingCenter
getApproved
function getApproved(uint256 tokenId) public view returns (address) view public
*Developer note: Returns the account approved for `tokenId` token.
Requirements:
`tokenId` must exist.*
tokenId
uint256
Returns:
[0]
address