Token Delegate

Overview

The token delegate contract contains the core logic of IPT. The protocol can add or change the functionality by updating the implementation contract on the delegetor.

Initialize

Used to initialize the contract during delegator constructor. The account is where the total supply of IPT is initially transfered.

function initialize(address account_, uint256 initialSupply_) public override {
    require(totalSupply == 0, "initialize: can only do once");
    require(account_ != address(0), "initialize: invalid address");
    require(initialSupply_ > 0, "invalid initial supply");

    totalSupply = initialSupply_;

    balances[account_] = uint96(totalSupply);
    emit Transfer(address(0), account_, totalSupply);
  }

Functions

• function changeName(string calldata name_) external override onlyOwner
  • Change token name
• function changeSymbol(string calldata symbol_) external override onlyOwner
  • Change token symbol
• function allowance(address account, address spender) external view override returns (uint256)
  • Get the number of tokens spender is approved to spend on behalf of account
• function approve(address spender, uint256 rawAmount) external override returns (bool)
  • Approve spender to transfer up to amount from src
• function permit(address owner,address spender,uint256 rawAmount,uint256 deadline,uint8 v,bytes32 r,bytes32 s) external override
  • Triggers an approval from owner to spends
• function balanceOf(address account) external view override returns (uint256)
  • Get the number of tokens held by the account
• function transfer(address dst, uint256 rawAmount) external override returns (bool)
  • Transfer amount tokens from msg.sender to dst
• function transferFrom(address src,address dst,uint256 rawAmount) external override returns (bool)
  • Transfer amount tokens from src to dst
• function mint(address dst, uint256 rawAmount) external override onlyOwner
  • Mint new tokens
• function delegate(address delegatee) public override
  • Delegate votes from msg.sender to delegatee
• function delegateBySig(address delegatee,uint256 nonce,uint256 expiry,uint8 v,bytes32 r,bytes32 s) public override
  • Delegates votes from signatory to delegatee
• function getCurrentVotes(address account) external view override returns (uint96)
  • Gets the current votes balance for account
• function getPriorVotes(address account, uint256 blockNumber) public view override returns (uint96)
  • Determine the prior number of votes for an account as of a block number.
• function _naivePriorVotes(address account, uint256 blockNumber) internal view returns (bool ok, uint96 ans)
  • Hepler function for getPriorVotes.
• function _delegate(address delegator, address delegatee) internal
  • Helper function for delegate.
• function _transferTokens(address src,address dst,uint96 amount) internal
  • Helper function for transfering IPT
• function _moveDelegates(address srcRep,address dstRep,uint96 amount) internal
  • Helper function for delegation and transfers.
• function _writeCheckpoint(address delegatee,uint32 nCheckpoints,uint96 oldVotes,uint96 newVotes) internal
  • Helper function for _moveDelegates
• function safe32(uint256 n, string memory errorMessage) internal pure returns (uint32)
  • overflow check
• function safe96(uint256 n, string memory errorMessage) internal pure returns (uint96)
  • overflow check
• function add96(uint96 a,uint96 b,string memory errorMessage) internal pure returns (uint96)
  • math helper
• function sub96(uint96 a,uint96 b,string memory errorMessage) internal pure returns (uint96)
  • math helper
• function getChainid() internal view returns (uint256)
  • returns the chain ID.