MOR OFT

The contract is the core implementation of the MOR token using LayerZero’s Omnichain Fungible Token (OFT) standard. It extends the traditional ERC20 token with cross-chain messaging capabilities, controlled minting, and token burning. The contract is designed to enable seamless use of the MOR token across multiple blockchains in the MOR ecosystem while maintaining strict control over its supply and minting rights.

Key Features

1. Omnichain compatibility: built on LayerZero’s OFT (OApp v2) for seamless token transfers across chains.

2. ERC20 compliant: supports standard ERC20 interface (IERC20), including allowance-based burnFrom.

3. Minting control: only approved minters (set by contract owner, L2MessageReceiver as default) can mint new MOR tokens.

4. Burnable: users can burn their own tokens or those they’ve been approved to spend.

5. Interface support: implements IMOROFT, IERC20, IOAppCore, and IERC165 for interoperability.

Notes

Standard ERC20 and OFT functions are not listed below.

Storage

isMinter

Returns true when the address has rights to mint tokens. isMinter[<address>]

mapping(address => bool) public isMinter;

Functions with restricted access

updateMinter

Add or remove rights for minter_ to call the mint function.

function updateMinter(address minter_, bool status_) external onlyOwner;

Name	Description
minter_	The new or existed minter address.
status_	The true, when we want to add new minter, and false when we want tot remove the rights.

mint

Mints new tokens to the specified account. This function can only be called by the _minter_ – L2MessageReceiver.

function mint(address account_, uint256 amount_) public

Name	Description
account_	The account to which tokens are minted.
amount_	The number of tokens to mint.

Functions

burn

Burns a specified amount of tokens from the caller's account, reducing the total supply.

function burn(uint256 amount_) public

Name	Description
amount_	The number of tokens to be burned (removed) from the total supply and caller's account.

burnFrom

Burns a specified amount of tokens from the specified account, reducing the total supply. The caller must have allowance for at least the specified amount of tokens.

function burnFrom(address account_, uint256 amount_) public

Name	Description
account_	The account from which to burn tokens.
amount_	The number of tokens to be burned (removed) from the total supply.

Read functions

supportsInterface

Used for interface detection (ERC165). Returns true if the contract supports a specific interfaceId_. Supports IMOROFT, IERC165.

function supportsInterface(bytes4 interfaceId_) external pure returns (bool)