Tip3ToEver

The Tip3ToEver smart contract defines the logic for swapping Tip3 To Ever.

Smart contract responsible for swapping Tip3 token to Ever.

Derives following classes and interfaces: IAcceptTokensTransferCallback, IAcceptTokensBurnCallback, IEverTip3SwapEvents.

constructor

constructor() public

Deploy empty wallet.

buildExchangePayload

function buildExchangePayload(uint64 id, address pair, uint128 expectedAmount) external pure returns (TvmCell)

Build payload constructor for exchanging TIP 3 to EVER, store values from function params to TVMBuilder instance.

Parameters:

Name	Type	Description

Callbacks

onWeverWallet

function onWeverWallet(address _weverWallet) external

Callback deploy for weverWallet.

Parameters:

Name	Type	Description

onAcceptTokensTransfer

function onAcceptTokensTransfer(address /*tokenRoot*/, uint128 amount, address sender, address /*senderWallet*/, address user,TvmCell payload) override external

Callback for swap. If operationStatus is SWAP and value is greater than SWAP_TIP3_TO_EVER_MIN_VALUE, build success, cancel and resultPayload and transfer from Tip3ToEver wallet to the pair’s wallet. If operationStatus is CANCEL emit SwapTip3EverCancelTransfer event and call OnSwapTip3ToEverCancel callback and transfer the amount back to the user, if SUCCESS and msg sender is weverWallet, transfer the amount to weverVault wallet. Else if needCancel var is true transfer value back to the sender

Parameters:

Name	Type	Description

onAcceptTokensBurn

function onAcceptTokensBurn(uint128 /*amount*/, address /*walletOwner*/, address /*wallet*/, address user, TvmCell payload) override external

Callback for burn if the swap succeeded, emits SwapTip3EverSuccessTransfer event and call callback onSwapTip3ToEverSuccess.

Parameters:

Name	Type	Description

Key Events

SwapTip3EverSuccessTransfer

SwapTip3EverSuccessTransfer(address user, uint64 id);

Emitted inside onAcceptTokensTransfer callback when Tip3 tokens are successfully swapped to EVERs.

SwapTip3EverCancelTransfer

SwapTip3EverCancelTransfer(address user, uint64 id);

Emitted inside onAcceptTokensTransfer callback when swap is canceled.