AlgebraPool

Algebra concentrated liquidity pool

This contract is responsible for liquidity positions, swaps and flashloans

Developer note: Version: Algebra V2-directional-fee

Functions

initialize

function initialize(uint160 initialPrice) external external

Sets the initial price for the pool Developer note: Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value Initialization should be done in one transaction with pool creation to avoid front-running

mint

function mint(address sender, address recipient, int24 bottomTick, int24 topTick, uint128 liquidityDesired, bytes data) external returns (uint256 amount0, uint256 amount1, uint128 liquidityActual) external

Adds liquidity for the given recipient/bottomTick/topTick position Developer note: The caller of this method receives a callback in the form of IAlgebraMintCallback# AlgebraMintCallback in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends on bottomTick, topTick, the amount of liquidity, and the current price. If bottomTick == topTick position is treated as a limit order

Returns:

burn

function burn(int24 bottomTick, int24 topTick, uint128 amount) external returns (uint256 amount0, uint256 amount1) external

Burn liquidity from the sender and account tokens owed for the liquidity to the position Developer note: Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0 Fees must be collected separately via a call to #collect

Returns:

collect

function collect(address recipient, int24 bottomTick, int24 topTick, uint128 amount0Requested, uint128 amount1Requested) external returns (uint128 amount0, uint128 amount1) external

Collects tokens owed to a position Developer note: Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity. Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.

Returns:

swap

function swap(address recipient, bool zeroToOne, int256 amountRequired, uint160 limitSqrtPrice, bytes data) external returns (int256 amount0, int256 amount1) external

Swap token0 for token1, or token1 for token0 Developer note: The caller of this method receives a callback in the form of IAlgebraSwapCallback#AlgebraSwapCallback

Returns:

swapSupportingFeeOnInputTokens

function swapSupportingFeeOnInputTokens(address sender, address recipient, bool zeroToOne, int256 amountRequired, uint160 limitSqrtPrice, bytes data) external returns (int256 amount0, int256 amount1) external

Swap token0 for token1, or token1 for token0 (tokens that have fee on transfer) Developer note: The caller of this method receives a callback in the form of IAlgebraSwapCallback#AlgebraSwapCallback

Returns:

flash

function flash(address recipient, uint256 amount0, uint256 amount1, bytes data) external external

Receive token0 and/or token1 and pay it back, plus a fee, in the callback Developer note: The caller of this method receives a callback in the form of IAlgebraFlashCallback#AlgebraFlashCallback All excess tokens paid in the callback are distributed to currently in-range liquidity providers as an additional fee. If there are no in-range liquidity providers, the fee will be transferred to the first active provider in the future

setCommunityFee

function setCommunityFee(uint8 newCommunityFee) external external

Set the community's % share of the fees. Cannot exceed 25% (250). Only factory owner or POOLS_ADMINISTRATOR_ROLE role

setTickSpacing

function setTickSpacing(int24 newTickSpacing, int24 newTickspacingLimitOrders) external external

Set the new tick spacing values. Only factory owner or POOLS_ADMINISTRATOR_ROLE role

setIncentive

function setIncentive(address newIncentiveAddress) external external

Sets an active incentive. Only farming