EverToTip3
With this smart contract you can swap evers to Tip3 tokens.
Smart contract responsible for swapping evers to Tip3 tokens.
Derives following classes and interfaces: IAcceptTokensMintCallback, IAcceptTokensTransferCallback, IAcceptTokensBurnCallback, IEverTip3SwapEvents.
constructor() public
Deploys wallet with
EverToTip3 contract address.function buildExchangePayload(uint64 id, uint128 amount, address pair, uint128 expectedAmount, uint128 deployWalletValue) external pure returns (TvmCell)
Creates payload constructor for swap between Ever and Tip-3 token - takes id, amount, pair address, expectedAmount,
deployWalletValue from params and store those values to the TVMBuilder instance.Parameters:
Name | Type | Description |
|---|---|---|
id | uint64 | Payload Id |
amount | uint128 | Amount to exchange |
pair | address | Exchange pair root address |
expectedAmount | uint128 | Expected amount after exchange |
deployWalletValue | uint128 | Value for deploying new wallet |
Return Value:
Type | Description |
|---|---|
TvmCell | Exchange payload in cell format |
function swapEvers(address user, TvmCell payload) external
Takes user address and payload as params if there are enough EVERs swap them with Tip-3 token, if not cancel.
Parameters:
Name | Type | Description |
|---|---|---|
user | address | Address of the user initiating exchange |
payload | TvmCell | Payload used for wrapping EVERs |
function onWeverWallet(address _weverWallet) external
Deploys Wever wallet for the contract using
_weverWallet address from the function params.Parameters:
Name | Type | Description |
|---|---|---|
_weverWallet | address | Address used to initialize wever wallet |
function onAcceptTokensMint(address /*tokenRoot*/, uint128 amount, address user, TvmCell payload) override external
Checks if weverWallet is the message sender and message sender value is greater than 0, if value is ge then
SWAP_EVER_TO_TIP_3_MIN_VALUE, if so emit SwapEverToTip3WeverMint event, create success, cancel and result payload, transfer the amount from the function params of tokens from EverToTip3 wallet to the pair’s address, else transfer to the weverVault address (burn Wevers).Parameters:
Name | Type | Description |
|---|---|---|
token_root | address | Address of the token root |
amount | uint128 | Amount of tokens to transfer to user |
user | address | Address of the user to transfer remaining gas |
payload | TvmCell | Payload with exchange data (id, amount, pair, expectedAmount, deploy value…) |
function onAcceptTokensTransfer(address /*tokenRoot*/, uint128 amount, address sender, address /*senderWallet*/, address user, TvmCell payload) override external
If operationStatus is cancel, burn WEVERs (transfer them to
weverVault address), if it is SUCCESS call the callback function for swapping evers to tip 3 (onSwapEversToTip3Success), emit SwapEversToTip3SuccessTransfer event and send tip 3 tokens to the user using TokenWallet’s transfer function.
If it’s not SUCCESS or CANCEL set needCancel var to true and transfer the amount back to the sender.Parameters:
Name | Type | Description |
|---|---|---|
tokenRoot | address | Address of token root |
amount | uint128 | Amount of tokens to transfer |
sender | address | Address of tokens sender |
senderWallet | address | Tokens sender’s wallet address |
user | address | User’s address for receiving tip3 tokens |
payload | TvmCell | Transfer payload data |
function onAcceptTokensBurn(uint128 /*amount*/, address /*walletOwner*/, address /*wallet*/, address user, TvmCell payload) override external
Callback function used when swap is canceled. Emit
SwapEverToTip3CancelTransfer and call callback function onSwapEverToTip3CancelTransfer.Parameters:
Name | Type | Description |
|---|---|---|
amount | uint128 | Amount of tokens to burn (optional) |
walletOwner | address | Address of wallet owner |
wallet | address | Wallet address |
user | address | User’s address that canceled exchange |
payload | TvmCell | Burn tokens payload data |
SwapEverToTip3WeverMint(uint64 id, uint128 amount, address pair, uint128 expectedAmount, uint128 deployWalletValue);
Emitted inside
onAcceptTokensMint callback.SwapEverToTip3SuccessTransfer(address user, uint64 id);
Emitted inside
onAcceptTokensTransfer callback when EVERs are successfully swapped to Tip3 tokens.SwapEverToTip3CancelTransfer(address user, uint64 id);
Emitted inside of the onAcceptTokensBurn when swap is canceled .
Last modified 3mo ago