Factory

https://github.com/Into-the-Fathom/fathom-swap-smart-contracts/blob/master/contracts/core/UniswapV2Factory.sol

The UniswapV2Factory contract is a core component of the Fathom DEX. It is responsible for creating and managing pairs (liquidity pools) for token exchanges.

State Variables

feeTo

• Type: address

• Description: Address to which protocol fees are sent.

feeToSetter

• Type: address

• Description: Address with the permission to update the feeTo address.

getPair

• Type: mapping(address => mapping(address => address))

• Description: Mapping from two token addresses to the address of their liquidity pool.

allPairs

• Type: address[]

• Description: Array of all created pair addresses.

Set Functions

createPair

• Parameters:

  • address tokenA: The first token of the pair.

  • address tokenB: The second token of the pair.

• Returns:

  • address pair: The address of the created pair.

• Description: Creates a new liquidity pair for tokenA and tokenB. Emits the PairCreated event.

setFeeTo

• Parameters:

  • address _feeTo: The address to set as the fee recipient.

• Description: Sets the address to which protocol fees are sent. Can only be called by the feeToSetter.

setFeeToSetter

• Parameters:

  • address _feeToSetter: The address to set as the new feeToSetter.

• Description: Sets the address that can update the fee recipient. Can only be called by the current feeToSetter.

Read Functions

allPairsLength

• Parameters: None

• Returns:

  • uint: The length of the allPairs array.

• Description: Returns the number of all pairs created.

getInitHash

• Parameters: None

• Returns:

  • bytes32: The keccak256 hash of the UniswapV2Pair creation code.

• Description: Returns the initialization hash of the UniswapV2Pair contract.

Events

PairCreated

• Parameters:

  • address indexed token0: The first token of the pair.

  • address indexed token1: The second token of the pair.

  • address pair: The address of the created pair.

  • uint: The total number of pairs.

• Description: Emitted when a new pair is created.