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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x528bAca5...34c86a54c The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
Vyper_contract
Compiler Version
vyper:0.2.15
Contract Source Code (Vyper language format)
# @version 0.2.15 """ @title Curve Factory @license MIT @author Curve.Fi @notice Permissionless pool deployer and registry """ struct PoolArray: base_pool: address implementation: address liquidity_gauge: address coins: address[MAX_PLAIN_COINS] decimals: uint256[MAX_PLAIN_COINS] n_coins: uint256 asset_type: uint256 struct BasePoolArray: implementations: address[10] lp_token: address fee_receiver: address coins: address[MAX_COINS] decimals: uint256 n_coins: uint256 asset_type: uint256 interface AddressProvider: def admin() -> address: view def get_registry() -> address: view interface Registry: def get_lp_token(pool: address) -> address: view def get_n_coins(pool: address) -> uint256: view def get_coins(pool: address) -> address[MAX_COINS]: view def get_pool_from_lp_token(lp_token: address) -> address: view interface ERC20: def balanceOf(_addr: address) -> uint256: view def decimals() -> uint256: view def totalSupply() -> uint256: view def approve(_spender: address, _amount: uint256): nonpayable interface CurvePlainPool: def initialize( _name: String[32], _symbol: String[10], _coins: address[4], _rate_multipliers: uint256[4], _A: uint256, _fee: uint256, ): nonpayable interface CurvePool: def A() -> uint256: view def fee() -> uint256: view def admin_fee() -> uint256: view def balances(i: uint256) -> uint256: view def admin_balances(i: uint256) -> uint256: view def get_virtual_price() -> uint256: view def initialize( _name: String[32], _symbol: String[10], _coin: address, _rate_multiplier: uint256, _A: uint256, _fee: uint256, ): nonpayable def exchange( i: int128, j: int128, dx: uint256, min_dy: uint256, _receiver: address, ) -> uint256: nonpayable interface CurveFactoryMetapool: def coins(i :uint256) -> address: view def decimals() -> uint256: view interface OldFactory: def get_coins(_pool: address) -> address[2]: view interface LiquidityGauge: def initialize(_lp_token: address): nonpayable event BasePoolAdded: base_pool: address event PlainPoolDeployed: coins: address[MAX_PLAIN_COINS] A: uint256 fee: uint256 deployer: address pool: address event MetaPoolDeployed: coin: address base_pool: address A: uint256 fee: uint256 deployer: address event LiquidityGaugeDeployed: pool: address gauge: address MAX_COINS: constant(int128) = 8 MAX_PLAIN_COINS: constant(int128) = 4 # max coins in a plain pool ADDRESS_PROVIDER: constant(address) = 0x0000000022D53366457F9d5E68Ec105046FC4383 OLD_FACTORY: constant(address) = 0x0959158b6040D32d04c301A72CBFD6b39E21c9AE admin: public(address) future_admin: public(address) manager: public(address) pool_list: public(address[4294967296]) # master list of pools pool_count: public(uint256) # actual length of pool_list pool_data: HashMap[address, PoolArray] base_pool_list: public(address[4294967296]) # master list of pools base_pool_count: public(uint256) # actual length of pool_list base_pool_data: HashMap[address, BasePoolArray] # asset -> is used in a metapool? base_pool_assets: public(HashMap[address, bool]) # number of coins -> implementation addresses # for "plain pools" (as opposed to metapools), implementation contracts # are organized according to the number of coins in the pool plain_implementations: public(HashMap[uint256, address[10]]) # fee receiver for plain pools fee_receiver: address gauge_implementation: public(address) # mapping of coins -> pools for trading # a mapping key is generated for each pair of addresses via # `bitwise_xor(convert(a, uint256), convert(b, uint256))` markets: HashMap[uint256, address[4294967296]] market_counts: HashMap[uint256, uint256] plain_whitelist: public(HashMap[address, bool]) @external def __init__(_fee_receiver: address): self.admin = msg.sender self.manager = msg.sender self.fee_receiver = _fee_receiver # <--- Factory Getters ---> @view @external def metapool_implementations(_base_pool: address) -> address[10]: """ @notice Get a list of implementation contracts for metapools targetting the given base pool @dev A base pool is the pool for the LP token contained within the metapool @param _base_pool Address of the base pool @return List of implementation contract addresses """ return self.base_pool_data[_base_pool].implementations @view @external def find_pool_for_coins(_from: address, _to: address, i: uint256 = 0) -> address: """ @notice Find an available pool for exchanging two coins @param _from Address of coin to be sent @param _to Address of coin to be received @param i Index value. When multiple pools are available this value is used to return the n'th address. @return Pool address """ key: uint256 = bitwise_xor(convert(_from, uint256), convert(_to, uint256)) return self.markets[key][i] # <--- Pool Getters ---> @view @external def get_base_pool(_pool: address) -> address: """ @notice Get the base pool for a given factory metapool @param _pool Metapool address @return Address of base pool """ return self.pool_data[_pool].base_pool @view @external def get_n_coins(_pool: address) -> (uint256): """ @notice Get the number of coins in a pool @param _pool Pool address @return Number of coins """ return self.pool_data[_pool].n_coins @view @external def get_meta_n_coins(_pool: address) -> (uint256, uint256): """ @notice Get the number of coins in a metapool @param _pool Pool address @return Number of wrapped coins, number of underlying coins """ base_pool: address = self.pool_data[_pool].base_pool return 2, self.base_pool_data[base_pool].n_coins + 1 @view @external def get_coins(_pool: address) -> address[MAX_PLAIN_COINS]: """ @notice Get the coins within a pool @param _pool Pool address @return List of coin addresses """ return self.pool_data[_pool].coins @view @external def get_underlying_coins(_pool: address) -> address[MAX_COINS]: """ @notice Get the underlying coins within a pool @dev Reverts if a pool does not exist or is not a metapool @param _pool Pool address @return List of coin addresses """ coins: address[MAX_COINS] = empty(address[MAX_COINS]) base_pool: address = self.pool_data[_pool].base_pool assert base_pool != ZERO_ADDRESS # dev: pool is not metapool coins[0] = self.pool_data[_pool].coins[0] for i in range(1, MAX_COINS): coins[i] = self.base_pool_data[base_pool].coins[i - 1] if coins[i] == ZERO_ADDRESS: break return coins @view @external def get_decimals(_pool: address) -> uint256[MAX_PLAIN_COINS]: """ @notice Get decimal places for each coin within a pool @param _pool Pool address @return uint256 list of decimals """ if self.pool_data[_pool].base_pool != ZERO_ADDRESS: decimals: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) decimals = self.pool_data[_pool].decimals decimals[1] = 18 return decimals return self.pool_data[_pool].decimals @view @external def get_underlying_decimals(_pool: address) -> uint256[MAX_COINS]: """ @notice Get decimal places for each underlying coin within a pool @param _pool Pool address @return uint256 list of decimals """ # decimals are tightly packed as a series of uint8 within a little-endian bytes32 # the packed value is stored as uint256 to simplify unpacking via shift and modulo pool_decimals: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) pool_decimals = self.pool_data[_pool].decimals decimals: uint256[MAX_COINS] = empty(uint256[MAX_COINS]) decimals[0] = pool_decimals[0] base_pool: address = self.pool_data[_pool].base_pool packed_decimals: uint256 = self.base_pool_data[base_pool].decimals for i in range(MAX_COINS): unpacked: uint256 = shift(packed_decimals, -8 * i) % 256 if unpacked == 0: break decimals[i+1] = unpacked return decimals @view @external def get_metapool_rates(_pool: address) -> uint256[2]: """ @notice Get rates for coins within a metapool @param _pool Pool address @return Rates for each coin, precision normalized to 10**18 """ rates: uint256[2] = [10**18, 0] rates[1] = CurvePool(self.pool_data[_pool].base_pool).get_virtual_price() return rates @view @external def get_balances(_pool: address) -> uint256[MAX_PLAIN_COINS]: """ @notice Get balances for each coin within a pool @dev For pools using lending, these are the wrapped coin balances @param _pool Pool address @return uint256 list of balances """ if self.pool_data[_pool].base_pool != ZERO_ADDRESS: return [CurvePool(_pool).balances(0), CurvePool(_pool).balances(1), 0, 0] n_coins: uint256 = self.pool_data[_pool].n_coins balances: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) for i in range(MAX_PLAIN_COINS): if i < n_coins: balances[i] = CurvePool(_pool).balances(i) else: balances[i] = 0 return balances @view @external def get_underlying_balances(_pool: address) -> uint256[MAX_COINS]: """ @notice Get balances for each underlying coin within a metapool @param _pool Metapool address @return uint256 list of underlying balances """ underlying_balances: uint256[MAX_COINS] = empty(uint256[MAX_COINS]) underlying_balances[0] = CurvePool(_pool).balances(0) base_total_supply: uint256 = ERC20(self.pool_data[_pool].coins[1]).totalSupply() if base_total_supply > 0: underlying_pct: uint256 = CurvePool(_pool).balances(1) * 10**36 / base_total_supply base_pool: address = self.pool_data[_pool].base_pool assert base_pool != ZERO_ADDRESS # dev: pool is not a metapool n_coins: uint256 = self.base_pool_data[base_pool].n_coins for i in range(MAX_COINS): if i == n_coins: break underlying_balances[i + 1] = CurvePool(base_pool).balances(i) * underlying_pct / 10**36 return underlying_balances @view @external def get_A(_pool: address) -> uint256: """ @notice Get the amplfication co-efficient for a pool @param _pool Pool address @return uint256 A """ return CurvePool(_pool).A() @view @external def get_fees(_pool: address) -> (uint256, uint256): """ @notice Get the fees for a pool @dev Fees are expressed as integers @return Pool fee and admin fee as uint256 with 1e10 precision """ return CurvePool(_pool).fee(), CurvePool(_pool).admin_fee() @view @external def get_admin_balances(_pool: address) -> uint256[MAX_PLAIN_COINS]: """ @notice Get the current admin balances (uncollected fees) for a pool @param _pool Pool address @return List of uint256 admin balances """ n_coins: uint256 = self.pool_data[_pool].n_coins admin_balances: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) for i in range(MAX_PLAIN_COINS): if i == n_coins: break admin_balances[i] = CurvePool(_pool).admin_balances(i) return admin_balances @view @external def get_coin_indices( _pool: address, _from: address, _to: address ) -> (int128, int128, bool): """ @notice Convert coin addresses to indices for use with pool methods @param _pool Pool address @param _from Coin address to be used as `i` within a pool @param _to Coin address to be used as `j` within a pool @return int128 `i`, int128 `j`, boolean indicating if `i` and `j` are underlying coins """ coin: address = self.pool_data[_pool].coins[0] base_pool: address = self.pool_data[_pool].base_pool if coin in [_from, _to] and base_pool != ZERO_ADDRESS: base_lp_token: address = self.pool_data[_pool].coins[1] if base_lp_token in [_from, _to]: # True and False convert to 1 and 0 - a bit of voodoo that # works because we only ever have 2 non-underlying coins if base pool is ZERO_ADDRESS return convert(_to == coin, int128), convert(_from == coin, int128), False found_market: bool = False i: int128 = 0 j: int128 = 0 for x in range(MAX_COINS): if base_pool == ZERO_ADDRESS: if x >= MAX_PLAIN_COINS: raise "No available market" if x != 0: coin = self.pool_data[_pool].coins[x] else: if x != 0: coin = self.base_pool_data[base_pool].coins[x-1] if coin == ZERO_ADDRESS: raise "No available market" if coin == _from: i = x elif coin == _to: j = x else: continue if found_market: # the second time we find a match, break out of the loop break # the first time we find a match, set `found_market` to True found_market = True return i, j, base_pool != ZERO_ADDRESS @view @external def get_gauge(_pool: address) -> address: """ @notice Get the address of the liquidity gauge contract for a factory pool @dev Returns `ZERO_ADDRESS` if a gauge has not been deployed @param _pool Pool address @return Implementation contract address """ return self.pool_data[_pool].liquidity_gauge @view @external def get_implementation_address(_pool: address) -> address: """ @notice Get the address of the implementation contract used for a factory pool @param _pool Pool address @return Implementation contract address """ return self.pool_data[_pool].implementation @view @external def is_meta(_pool: address) -> bool: """ @notice Verify `_pool` is a metapool @param _pool Pool address @return True if `_pool` is a metapool """ return self.pool_data[_pool].base_pool != ZERO_ADDRESS @view @external def get_pool_asset_type(_pool: address) -> uint256: """ @notice Query the asset type of `_pool` @dev 0 = USD, 1 = ETH, 2 = BTC, 3 = Other @param _pool Pool Address @return Integer indicating the pool asset type """ base_pool: address = self.pool_data[_pool].base_pool if base_pool == ZERO_ADDRESS: return self.pool_data[_pool].asset_type else: return self.base_pool_data[base_pool].asset_type @view @external def get_fee_receiver(_pool: address) -> address: base_pool: address = self.pool_data[_pool].base_pool if base_pool == ZERO_ADDRESS: return self.fee_receiver else: return self.base_pool_data[base_pool].fee_receiver # <--- Pool Deployers ---> @external def deploy_plain_pool( _name: String[32], _symbol: String[10], _coins: address[MAX_PLAIN_COINS], _A: uint256, _fee: uint256, _asset_type: uint256 = 0, _implementation_idx: uint256 = 0, ) -> address: """ @notice Deploy a new plain pool @param _name Name of the new plain pool @param _symbol Symbol for the new plain pool - will be concatenated with factory symbol @param _coins List of addresses of the coins being used in the pool. @param _A Amplification co-efficient - a lower value here means less tolerance for imbalance within the pool's assets. Suggested values include: * Uncollateralized algorithmic stablecoins: 5-10 * Non-redeemable, collateralized assets: 100 * Redeemable assets: 200-400 @param _fee Trade fee, given as an integer with 1e10 precision. The minimum fee is 0.04% (4000000), the maximum is 1% (100000000). 50% of the fee is distributed to veCRV holders. @param _asset_type Asset type for pool, as an integer 0 = USD, 1 = ETH, 2 = BTC, 3 = Other @param _implementation_idx Index of the implementation to use. All possible implementations for a pool of N_COINS can be publicly accessed via `plain_implementations(N_COINS)` @return Address of the deployed pool """ assert _fee > 0, "Invalid fee" n_coins: uint256 = MAX_PLAIN_COINS rate_multipliers: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) decimals: uint256[MAX_PLAIN_COINS] = empty(uint256[MAX_PLAIN_COINS]) has_allowed_coin: bool = False for i in range(MAX_PLAIN_COINS): coin: address = _coins[i] if coin == ZERO_ADDRESS: assert i > 1, "Insufficient coins" n_coins = i break if _coins[i] == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE: assert i == 0, "ETH must be first coin" decimals[0] = 18 else: decimals[i] = ERC20(coin).decimals() assert decimals[i] < 19, "Max 18 decimals for coins" rate_multipliers[i] = 10 ** (36 - decimals[i]) for x in range(i, i+MAX_PLAIN_COINS): if x+1 == MAX_PLAIN_COINS: break if _coins[x+1] == ZERO_ADDRESS: break assert coin != _coins[x+1], "Duplicate coins" if self.plain_whitelist[coin]: has_allowed_coin = True assert has_allowed_coin, "No coins from whitelist" implementation: address = self.plain_implementations[n_coins][_implementation_idx] assert implementation != ZERO_ADDRESS, "Invalid implementation index" pool: address = create_forwarder_to(implementation) CurvePlainPool(pool).initialize(_name, _symbol, _coins, rate_multipliers, _A, _fee) length: uint256 = self.pool_count self.pool_list[length] = pool self.pool_count = length + 1 self.pool_data[pool].decimals = decimals self.pool_data[pool].n_coins = n_coins self.pool_data[pool].base_pool = ZERO_ADDRESS self.pool_data[pool].implementation = implementation if _asset_type != 0: self.pool_data[pool].asset_type = _asset_type for i in range(MAX_PLAIN_COINS): coin: address = _coins[i] if coin == ZERO_ADDRESS: break self.pool_data[pool].coins[i] = coin raw_call( coin, concat( method_id("approve(address,uint256)"), convert(pool, bytes32), convert(MAX_UINT256, bytes32) ) ) for j in range(MAX_PLAIN_COINS): if i < j: swappable_coin: address = _coins[j] key: uint256 = bitwise_xor(convert(coin, uint256), convert(swappable_coin, uint256)) length = self.market_counts[key] self.markets[key][length] = pool self.market_counts[key] = length + 1 log PlainPoolDeployed(_coins, _A, _fee, msg.sender, pool) return pool @external def deploy_metapool( _base_pool: address, _name: String[32], _symbol: String[10], _coin: address, _A: uint256, _fee: uint256, _implementation_idx: uint256 = 0, ) -> address: """ @notice Deploy a new metapool @param _base_pool Address of the base pool to use within the metapool @param _name Name of the new metapool @param _symbol Symbol for the new metapool - will be concatenated with the base pool symbol @param _coin Address of the coin being used in the metapool @param _A Amplification co-efficient - a higher value here means less tolerance for imbalance within the pool's assets. Suggested values include: * Uncollateralized algorithmic stablecoins: 5-10 * Non-redeemable, collateralized assets: 100 * Redeemable assets: 200-400 @param _fee Trade fee, given as an integer with 1e10 precision. The minimum fee is 0.04% (4000000), the maximum is 1% (100000000). 50% of the fee is distributed to veCRV holders. @param _implementation_idx Index of the implementation to use. All possible implementations for a BASE_POOL can be publicly accessed via `metapool_implementations(BASE_POOL)` @return Address of the deployed pool """ # fee must be between 0.04% and 1% assert _fee >= 4000000 and _fee <= 100000000, "Invalid fee" implementation: address = self.base_pool_data[_base_pool].implementations[_implementation_idx] assert implementation != ZERO_ADDRESS, "Invalid implementation index" # things break if a token has >18 decimals decimals: uint256 = ERC20(_coin).decimals() assert decimals < 19, "Max 18 decimals for coins" pool: address = create_forwarder_to(implementation) CurvePool(pool).initialize(_name, _symbol, _coin, 10 ** (36 - decimals), _A, _fee) ERC20(_coin).approve(pool, MAX_UINT256) # add pool to pool_list length: uint256 = self.pool_count self.pool_list[length] = pool self.pool_count = length + 1 base_lp_token: address = self.base_pool_data[_base_pool].lp_token self.pool_data[pool].decimals = [decimals, 0, 0, 0] self.pool_data[pool].n_coins = 2 self.pool_data[pool].base_pool = _base_pool self.pool_data[pool].coins[0] = _coin self.pool_data[pool].coins[1] = self.base_pool_data[_base_pool].lp_token self.pool_data[pool].implementation = implementation is_finished: bool = False for i in range(MAX_COINS): swappable_coin: address = self.base_pool_data[_base_pool].coins[i] if swappable_coin == ZERO_ADDRESS: is_finished = True swappable_coin = base_lp_token key: uint256 = bitwise_xor(convert(_coin, uint256), convert(swappable_coin, uint256)) length = self.market_counts[key] self.markets[key][length] = pool self.market_counts[key] = length + 1 if is_finished: break log MetaPoolDeployed(_coin, _base_pool, _A, _fee, msg.sender) return pool @external def deploy_gauge(_pool: address) -> address: """ @notice Deploy a liquidity gauge for a factory pool @param _pool Factory pool address to deploy a gauge for @return Address of the deployed gauge """ assert self.pool_data[_pool].coins[0] != ZERO_ADDRESS, "Unknown pool" assert self.pool_data[_pool].liquidity_gauge == ZERO_ADDRESS, "Gauge already deployed" implementation: address = self.gauge_implementation assert implementation != ZERO_ADDRESS, "Gauge implementation not set" gauge: address = create_forwarder_to(implementation) LiquidityGauge(gauge).initialize(_pool) self.pool_data[_pool].liquidity_gauge = gauge log LiquidityGaugeDeployed(_pool, gauge) return gauge # <--- Admin / Guarded Functionality ---> @external def add_base_pool( _base_pool: address, _fee_receiver: address, _asset_type: uint256, _implementations: address[10], ): """ @notice Add a base pool to the registry, which may be used in factory metapools @dev Only callable by admin @param _base_pool Pool address to add @param _fee_receiver Admin fee receiver address for metapools using this base pool @param _asset_type Asset type for pool, as an integer 0 = USD, 1 = ETH, 2 = BTC, 3 = Other @param _implementations List of implementation addresses that can be used with this base pool """ assert msg.sender == self.admin # dev: admin-only function assert self.base_pool_data[_base_pool].coins[0] == ZERO_ADDRESS # dev: pool exists registry: address = AddressProvider(ADDRESS_PROVIDER).get_registry() n_coins: uint256 = Registry(registry).get_n_coins(_base_pool) assert n_coins > 0 # dev: pool not in registry # add pool to pool_list length: uint256 = self.base_pool_count self.base_pool_list[length] = _base_pool self.base_pool_count = length + 1 self.base_pool_data[_base_pool].lp_token = Registry(registry).get_lp_token(_base_pool) self.base_pool_data[_base_pool].n_coins = n_coins self.base_pool_data[_base_pool].fee_receiver = _fee_receiver if _asset_type != 0: self.base_pool_data[_base_pool].asset_type = _asset_type for i in range(10): implementation: address = _implementations[i] if implementation == ZERO_ADDRESS: break self.base_pool_data[_base_pool].implementations[i] = implementation decimals: uint256 = 0 coins: address[MAX_COINS] = Registry(registry).get_coins(_base_pool) for i in range(MAX_COINS): if i == n_coins: break coin: address = coins[i] self.base_pool_data[_base_pool].coins[i] = coin self.base_pool_assets[coin] = True decimals += shift(ERC20(coin).decimals(), convert(i*8, int128)) self.base_pool_data[_base_pool].decimals = decimals log BasePoolAdded(_base_pool) @external def set_metapool_implementations( _base_pool: address, _implementations: address[10], ): """ @notice Set implementation contracts for a metapool @dev Only callable by admin @param _base_pool Pool address to add @param _implementations Implementation address to use when deploying metapools """ assert msg.sender == self.admin # dev: admin-only function assert self.base_pool_data[_base_pool].coins[0] != ZERO_ADDRESS # dev: base pool does not exist for i in range(10): new_imp: address = _implementations[i] current_imp: address = self.base_pool_data[_base_pool].implementations[i] if new_imp == current_imp: if new_imp == ZERO_ADDRESS: break else: self.base_pool_data[_base_pool].implementations[i] = new_imp @external def add_token_to_whitelist(coin: address, _add: bool): """ @notice adds a token to a list of tokens with which plain pools are allowed @dev Only callable by admin @param coin Address of the coin to add """ assert msg.sender == self.admin # dev: admin-only function assert coin != ZERO_ADDRESS self.plain_whitelist[coin] = _add @external def set_plain_implementations( _n_coins: uint256, _implementations: address[10], ): assert msg.sender == self.admin # dev: admin-only function for i in range(10): new_imp: address = _implementations[i] current_imp: address = self.plain_implementations[_n_coins][i] if new_imp == current_imp: if new_imp == ZERO_ADDRESS: break else: self.plain_implementations[_n_coins][i] = new_imp @external def set_gauge_implementation(_gauge_implementation: address): assert msg.sender == self.admin # dev: admin-only function self.gauge_implementation = _gauge_implementation @external def batch_set_pool_asset_type(_pools: address[32], _asset_types: uint256[32]): """ @notice Batch set the asset type for factory pools @dev Used to modify asset types that were set incorrectly at deployment """ assert msg.sender in [self.manager, self.admin] # dev: admin-only function for i in range(32): if _pools[i] == ZERO_ADDRESS: break self.pool_data[_pools[i]].asset_type = _asset_types[i] @external def commit_transfer_ownership(_addr: address): """ @notice Transfer ownership of this contract to `addr` @param _addr Address of the new owner """ assert msg.sender == self.admin # dev: admin only self.future_admin = _addr @external def accept_transfer_ownership(): """ @notice Accept a pending ownership transfer @dev Only callable by the new owner """ _admin: address = self.future_admin assert msg.sender == _admin # dev: future admin only self.admin = _admin self.future_admin = ZERO_ADDRESS @external def set_manager(_manager: address): """ @notice Set the manager @dev Callable by the admin or existing manager @param _manager Manager address """ assert msg.sender in [self.manager, self.admin] # dev: admin-only function self.manager = _manager @external def set_fee_receiver(_base_pool: address, _fee_receiver: address): """ @notice Set fee receiver for base and plain pools @param _base_pool Address of base pool to set fee receiver for. For plain pools, leave as `ZERO_ADDRESS`. @param _fee_receiver Address that fees are sent to """ assert msg.sender == self.admin # dev: admin only if _base_pool == ZERO_ADDRESS: self.fee_receiver = _fee_receiver else: self.base_pool_data[_base_pool].fee_receiver = _fee_receiver @external def convert_metapool_fees() -> bool: """ @notice Convert the fees of a metapool and transfer to the metapool's fee receiver @dev All fees are converted to LP token of base pool """ base_pool: address = self.pool_data[msg.sender].base_pool assert base_pool != ZERO_ADDRESS # dev: sender must be metapool coin: address = self.pool_data[msg.sender].coins[0] amount: uint256 = ERC20(coin).balanceOf(self) receiver: address = self.base_pool_data[base_pool].fee_receiver CurvePool(msg.sender).exchange(0, 1, amount, 0, receiver) return True # <--- Pool Migration ---> @external def add_existing_metapools(_pools: address[10]) -> bool: """ @notice Add existing metapools from the old factory @dev Base pools that are used by the pools to be added must be added separately with `add_base_pool` @param _pools Addresses of existing pools to add """ length: uint256 = self.pool_count for pool in _pools: if pool == ZERO_ADDRESS: break assert self.pool_data[pool].coins[0] == ZERO_ADDRESS # dev: pool already exists coins: address[2] = OldFactory(OLD_FACTORY).get_coins(pool) assert coins[0] != ZERO_ADDRESS # dev: pool not in old factory # add pool to pool list self.pool_list[length] = pool length += 1 base_pool: address = ZERO_ADDRESS implementation: address = ZERO_ADDRESS if coins[1] == 0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490: # 3pool base_pool = 0xbEbc44782C7dB0a1A60Cb6fe97d0b483032FF1C7 implementation = 0x5F890841f657d90E081bAbdB532A05996Af79Fe6 elif coins[1] == 0x075b1bb99792c9E1041bA13afEf80C91a1e70fB3: # sbtc base_pool = 0x7fC77b5c7614E1533320Ea6DDc2Eb61fa00A9714 implementation = 0x2f956eEe002B0dEbD468CF2E0490d1aEc65e027F self.pool_data[pool].asset_type = 2 else: raise # update pool data self.pool_data[pool].decimals[0] = ERC20(coins[0]).decimals() self.pool_data[pool].base_pool = base_pool meta_coin: address = CurveFactoryMetapool(pool).coins(0) self.pool_data[pool].coins[0] = coins[0] self.pool_data[pool].coins[1] = coins[1] self.pool_data[pool].implementation = implementation base_pool_coins: address[MAX_COINS] = self.base_pool_data[base_pool].coins assert base_pool_coins[0] != ZERO_ADDRESS # dev: unknown base pool is_finished: bool = False for i in range(MAX_COINS): swappable_coin: address = base_pool_coins[i] if swappable_coin == ZERO_ADDRESS: is_finished = True swappable_coin = coins[1] key: uint256 = bitwise_xor(convert(meta_coin, uint256), convert(swappable_coin, uint256)) market_idx: uint256 = self.market_counts[key] self.markets[key][market_idx] = pool self.market_counts[key] = market_idx + 1 if is_finished: break self.pool_count = length return True
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.