LBGT

Author: BeraPaw

ERC20 token representing liquid staked BGT in the BeraPaw protocol

Implementation of liquid staking token with: Core functions:

mint/burn: Controlled by BeraPawForge
flash loans: Configurable amounts and fees
permit: ERC20 gasless approvals

State Variables

beraPawForge

Gets BeraPaw Forge contract address.

address public immutable beraPawForge;

flashMintPercentualFee

Get the current percentual fee for flash minting LBGT tokens

Fee is represented in basis points (1 = 0.01%), with a max of 10,000 (100%)

uint16 public flashMintPercentualFee;

flashFeeCollector

Get the address that collects flash mint fees

Returns address(0) if no fee collector has been set

address public flashFeeCollector;

flashMaxMint

Get the maximum amount of LBGT that can be flash minted

Flash minters with ROLE_FLASH_MINTER bypass this limit

uint256 public flashMaxMint;

Functions

onlyBeraPawForge

modifier onlyBeraPawForge();

constructor

constructor(
    address _berapawForge,
    address _owner
)
    ERC20("Liquid BGT", "LBGT")
    ERC20Permit("Liquid BGT")
    ERC20FlashMint();

setFlashMintFee

Set the flash mint fee in basis points (bps).

Only the admin can set the flash mint fee.

function setFlashMintFee(uint16 _flashMintPercentualFee) public onlyRole(ROLE_ADMIN);

Parameters

Name	Type	Description
`_flashMintPercentualFee`	`uint16`	The flash mint fee in basis points (bps).

setFlashMaxMint

Set the flash mint max limit.

Only the admin can set the flash mint max limit.

function setFlashMaxMint(uint256 _maxFlashMint) public onlyRole(ROLE_ADMIN);

Parameters

Name	Type	Description
`_maxFlashMint`	`uint256`	The flash mint max limit.

setFlashFeeCollector

Set the flash fee collector address.

Only the admin can set the flash fee collector address.

function setFlashFeeCollector(address _feeCollector) public onlyRole(ROLE_ADMIN);

Parameters

Name	Type	Description
`_feeCollector`	`address`	The address to set as the flash fee collector.

mint

Mint new tokens to a given address.

Only the BeraPaw vault can mint tokens.

function mint(address to, uint256 amount) public onlyBeraPawForge;

Parameters

Name	Type	Description
`to`	`address`	The address to mint tokens to.
`amount`	`uint256`	The amount of tokens to mint.

burn

Burn a given amount of tokens from a given address.

Only the BeraPaw vault can burn tokens.

function burn(address from, uint256 amount) public onlyBeraPawForge;

Parameters

Name	Type	Description
`from`	`address`	The address to burn tokens from.
`amount`	`uint256`	The amount of tokens to burn.

maxFlashLoan

Get the max flash loan amount of the given token.

Only LBGT can be flash loaned. The ROLE_FLASH_MINTER can flash mint regardless of the limit.

function maxFlashLoan(address token) public view override returns (uint256);

Parameters

Name	Type	Description
`token`	`address`	The token to get the max flash loan amount for.

Returns

Name	Type	Description
`<none>`	`uint256`	The max flash loan amount of the given token.

Contracts BeraPaw Forge