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DexVaultLpTokenPending
This smart contract is used for creating and deploying dex vault’s liquidity pool token and it’s wallets so it can change its state from pending.
Smart contract responsible for creating and deploying dex vault’s liquidity pool token and it’s wallets so it can change its state from pending.
Derives following classes and interfaces: ITokenRootDeployedCallback, ITransferTokenRootOwnershipCallbac
constructor(address token_factory_, uint128 value_, address send_gas_to_) public onlyVault
Based on parameters such as token factory address, deploy value and
send_gas_to address fills the right and left root symbol data and deploys pending dex vault’s liquidity pool token smart contract.Parameters:
Name | Type | Description |
|---|---|---|
token_factory | address | Token factory address used for deploying lp tokens |
value | uint128 | Deploy value |
send_gas_to | address | Address where to send gas spent by calling contract methods |
function terminate() public view
Terminates deploy of the pending liquidity pool token and calls _onLiquidityTokenNotDeployed function
function onSymbol(string symbol) public onlyExpectedToken
Receives token symbol as a parameter, decrements pending messages and whether the sender is right or left root fills the root data with received symbol value and calls createLpTokenAndWallets.
If the sender is not right/left root calls
terminateIfEmptyQueue.Parameters:
Name | Type | Description |
|---|---|---|
symbol | string | Token symbol used for creating new lp token |
function onTokenRootDeployed(uint32 /*answer_id*/, address token_root) override public onlyTokenFactory
Receives answerId and token root address through parameters, fills liquidity pool token root with token root value, deploys empty wallet using the token root and vault address, fills the callback params and transfers ownership to the new liquidity pair address calling the transferOwnership function from the
TransferableOwnership contract.Parameters:
Name | Type | Description |
|---|---|---|
answer_id | uint32 | |
token_root | address | Token root address of the lp token, used for deploying wallet |
function onTransferTokenRootOwnership( address oldOwner, address newOwner, address, TvmCell) external override
Gets old owner address and new owner address through parameters and if the old owner is address of the
DexVaultLpTokenPending smart contract and the new owner is dex pair address then token root ownership is delegated to the new owner address and deployed token root data (token root wallets, reserved initial balance, pair data configured…) is configured by calling DexVault’s onLiquidityTokenDeployed if not calls onLiquidityTokenNotDeployed.Parameters:
Name | Type | Description |
|---|---|---|
oldOwner | address | Address of the old token root’s owner |
newOwner | address | Address of the new owner |
- | address | Address used for checking the ownership |
- | TvmCell | |
function createLpTokenAndWallets() private
Calling
lpTokenSymbol gets the name of the symbol based on the right and left root symbol, deploys lp token calling deployLpToken, deploys wallets for left and right root and their vaults by calling deployEmptyWallet function.function deployLpToken(bytes symbol, uint8 decimals) private
Takes symbol and number of decimals and deploys token calling createToken function of the
TokenFactory based on the function (deployLpToken) parameters.Parameters:
Name | Type | Description |
|---|---|---|
pair | address | Pair address |
left_root | address | Token root address of the left token |
right_root | address | Token root address of the right token |
send_gas_to | address | Address where to send gas spent by calling contract methods |
function deployEmptyWallet(address token_root, address wallet_owner) private
Takes
token_root and wallet_owner addresses as parameters and based on those addresses deploys wallet calling TokenRoot’s deployWallet function.Parameters:
Name | Type | Description |
|---|---|---|
token_root | address | Token root address used for deploying new wallet |
wallet_owner | address | Wallet owner address |
function lpTokenSymbol(string left_symbol, string right_symbol) private view returns (string)
Creates liquidity pool token symbol based on the name of the left and right roots’ symbols and returns name of the lp token symbol.
Parameters:
Name | Type | Description |
|---|---|---|
left_symbol | string | Left pair token symbol |
right_symbol | string | Right pair token symbol |
Return Value:
Type | Description |
|---|---|
string | Liquidity pool token symbol |
Last modified 9mo ago