HUSD

0xdf574c24545e5ffecb9a659c229253d4111d87e1 Copy

ERC20

This contract is an ERC20 token.

Name HUSD

Symbol HUSD

Decimals 8

Total Supply 519,409,590 HUSD

About

HUSD (HUSD) is a cryptocurrency and operates on the Ethereum platform. HUSD has a current supply of 519,395,546.0071856. The last known price of HUSD is 0.9998344 USD and is down -0.05 over the last 24 hours. It is currently trading on 82 active market(s) with $416,235,391.50 traded over the last 24 hours. More information can be found at http://www.stcoins.com/.

Stats

Public Functions 33

Event Types 15

Code Size 14,849 bytes

Events (15)

Approval Event

Parameters

owner	address
spender	address
value	uint256

BlacklistAdded Event

Parameters

account

address

BlacklistAdminAdded Event

Parameters

account

address

BlacklistAdminRemoved Event

Parameters

account

address

BlacklistRemoved Event

Parameters

account

address

CoinFactoryAdminRoleAdded Event

Parameters

account

address

CoinFactoryAdminRoleRemoved Event

Parameters

account

address

Issue Event

Parameters

account	address
amount	uint256

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Paused Event

Parameters

account

address

PauserAdded Event

Parameters

account

address

PauserRemoved Event

Parameters

account

address

Redeem Event

Parameters

account	address
value	uint256

Transfer Event

Parameters

from	address
to	address
value	uint256

Unpaused Event

Parameters

account

address

State Variables (13)

name Variable

string

symbol Variable

string

decimals Variable

uint8

_totalSupply Variable

uint256

Internal Variable

_balances Variable

mapping(address => uint256)

Internal Variable

_allowances Variable

mapping(address => mapping(address => uint256))

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_owner Variable

address

Internal Variable

_paused Variable

bool

Internal Variable

_pausers Variable

Roles.Role

Internal Variable

_coinFactoryAdmins Variable

Roles.Role

Internal Variable

_blacklist Variable

mapping(address => bool)

Internal Variable

_blacklistAdmins Variable

Roles.Role

Internal Variable

Functions Expand All Collapse All

owner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function owner() public view returns (address) {
  return _owner;
}

isOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function isOwner() public view returns (bool) {
  return msg.sender == _owner;
}

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  _transferOwnership(newOwner);
}

isBlacklistAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isBlacklistAdmin(address account) public view returns (bool) {
  return _blacklistAdmins.has(account);
}

addBlacklistAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function addBlacklistAdmin(address account) public onlyOwner {
  _addBlacklistAdmin(account);
}

removeBlacklistAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function removeBlacklistAdmin(address account) public onlyOwner {
  _removeBlacklistAdmin(account);
}

renounceBlacklistAdmin

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function renounceBlacklistAdmin() public {
  _removeBlacklistAdmin(msg.sender);
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return _totalSupply;
}

balanceOf

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address account) public view returns (uint256) {
  return _balances[account];
}

transfer

Parameters

Name	Type
to	address
value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

_paused must not be true

Requirements

the result of calling isBlacklist with the sender's address must not be true

the result of calling isBlacklist with to must not be true

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function transfer(address to, uint256 value)
  public
  whenNotPaused
  returns (bool)
{
  require(
    !isBlacklist(msg.sender),
    "HUSDToken: caller in blacklist can't transfer"
  );
  require(
    !isBlacklist(to),
    "HUSDToken: not allow to transfer to recipient address in blacklist"
  );
  return super.transfer(to, value);
}

allowance

Parameters

Name	Type
owner	address
spender	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address owner, address spender)
  public
  view
  returns (uint256)
{
  return _allowances[owner][spender];
}

approve

Parameters

Name	Type
spender	address
value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

_paused must not be true

Requirements

the sender's address must not be equal to UNKNOWN VALUE

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 value)
  public
  whenNotPaused
  returns (bool)
{
  return super.approve(spender, value);
}

transferFrom

Parameters

Name	Type
from	address
to	address
value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

_paused must not be true

Requirements

the result of calling isBlacklist with the sender's address must not be true

the result of calling isBlacklist with from must not be true

the result of calling isBlacklist with to must not be true

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address from,
  address to,
  uint256 value
) public whenNotPaused returns (bool) {
  require(
    !isBlacklist(msg.sender),
    "HUSDToken: caller in blacklist can't transferFrom"
  );
  require(!isBlacklist(from), "HUSDToken: from in blacklist can't transfer");
  require(
    !isBlacklist(to),
    "HUSDToken: not allow to transfer to recipient address in blacklist"
  );
  return super.transferFrom(from, to, value);
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  returns (bool)
{
  _approve(
    msg.sender,
    spender,
    _allowances[msg.sender][spender].add(addedValue)
  );
  return true;
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  returns (bool)
{
  _approve(
    msg.sender,
    spender,
    _allowances[msg.sender][spender].sub(subtractedValue)
  );
  return true;
}

isBlacklist

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isBlacklist(address account) public view returns (bool) {
  return _blacklist[account];
}

addBlacklist

Parameters

Name	Type
accounts	address[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyBlacklistAdmin checks for the following:

null

Source Code

function addBlacklist(address[] memory accounts)
  public
  onlyBlacklistAdmin
  returns (bool)
{
  for (uint256 i = 0; i < accounts.length; i++) {
    _addBlacklist(accounts[i]);
  }
}

removeBlacklist

Parameters

Name	Type
accounts	address[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyBlacklistAdmin checks for the following:

null

Source Code

function removeBlacklist(address[] memory accounts)
  public
  onlyBlacklistAdmin
  returns (bool)
{
  for (uint256 i = 0; i < accounts.length; i++) {
    _removeBlacklist(accounts[i]);
  }
}

isCoinFactoryAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isCoinFactoryAdmin(address account) public view returns (bool) {
  return _coinFactoryAdmins.has(account);
}

addCoinFactoryAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function addCoinFactoryAdmin(address account) public onlyOwner {
  _addCoinFactoryAdmin(account);
}

removeCoinFactoryAdmin

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function removeCoinFactoryAdmin(address account) public onlyOwner {
  _removeCoinFactoryAdmin(account);
}

renounceCoinFactoryAdmin

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function renounceCoinFactoryAdmin() public {
  _removeCoinFactoryAdmin(msg.sender);
}

issue

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyCoinFactoryAdmin checks for the following:

null

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function issue(address account, uint256 amount)
  public
  onlyCoinFactoryAdmin
  returns (bool)
{
  _issue(account, amount);
  return true;
}

redeem

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyCoinFactoryAdmin checks for the following:

null

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function redeem(address account, uint256 amount)
  public
  onlyCoinFactoryAdmin
  returns (bool)
{
  _redeem(account, amount);
  return true;
}

isPauser

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isPauser(address account) public view returns (bool) {
  return _pausers.has(account);
}

addPauser

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function addPauser(address account) public onlyOwner {
  _addPauser(account);
}

removePauser

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function removePauser(address account) public onlyOwner {
  _removePauser(account);
}

renouncePauser

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function renouncePauser() public {
  _removePauser(msg.sender);
}

paused

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function paused() public view returns (bool) {
  return _paused;
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

null

whenNotPaused checks for the following:

_paused must not be true

Source Code

function pause() public onlyPauser whenNotPaused {
  _paused = true;
  emit Paused(msg.sender);
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

null

whenPaused checks for the following:

_paused must be true

Source Code

function unpause() public onlyPauser whenPaused {
  _paused = false;
  emit Unpaused(msg.sender);
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

_paused must not be true

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  whenNotPaused
  returns (bool)
{
  return super.increaseAllowance(spender, addedValue);
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

_paused must not be true

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  whenNotPaused
  returns (bool)
{
  return super.decreaseAllowance(spender, subtractedValue);
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(amount);
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 value
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = value;
  emit Approval(owner, spender, value);
}

internal ERC20._issue

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _issue(address account, uint256 amount) internal {
  require(account != address(0), "CoinFactory: issue to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
  emit Issue(account, amount);
}

internal ERC20._redeem

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _redeem(address account, uint256 value) internal {
  require(account != address(0), "CoinFactory: redeem from the zero address");

  _totalSupply = _totalSupply.sub(value);
  _balances[account] = _balances[account].sub(value);
  emit Transfer(account, address(0), value);
  emit Redeem(account, value);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(amount);
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 value
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = value;
  emit Approval(owner, spender, value);
}

internal ERC20._issue

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _issue(address account, uint256 amount) internal {
  require(account != address(0), "CoinFactory: issue to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
  emit Issue(account, amount);
}

internal ERC20._redeem

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _redeem(address account, uint256 value) internal {
  require(account != address(0), "CoinFactory: redeem from the zero address");

  _totalSupply = _totalSupply.sub(value);
  _balances[account] = _balances[account].sub(value);
  emit Transfer(account, address(0), value);
  emit Redeem(account, value);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal Pausable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _paused = false;
}

internal PauserRole.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _addPauser(msg.sender);
}

internal PauserRole._addPauser

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addPauser(address account) internal {
  _pausers.add(account);
  emit PauserAdded(account);
}

internal PauserRole._removePauser

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removePauser(address account) internal {
  _pausers.remove(account);
  emit PauserRemoved(account);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(amount);
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 value
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = value;
  emit Approval(owner, spender, value);
}

internal ERC20._issue

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _issue(address account, uint256 amount) internal {
  require(account != address(0), "CoinFactory: issue to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
  emit Issue(account, amount);
}

internal ERC20._redeem

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _redeem(address account, uint256 value) internal {
  require(account != address(0), "CoinFactory: redeem from the zero address");

  _totalSupply = _totalSupply.sub(value);
  _balances[account] = _balances[account].sub(value);
  emit Transfer(account, address(0), value);
  emit Redeem(account, value);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal CoinFactoryAdminRole.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _addCoinFactoryAdmin(msg.sender);
}

internal CoinFactoryAdminRole._addCoinFactoryAdmin

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addCoinFactoryAdmin(address account) internal {
  _coinFactoryAdmins.add(account);
  emit CoinFactoryAdminRoleAdded(account);
}

internal CoinFactoryAdminRole._removeCoinFactoryAdmin

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removeCoinFactoryAdmin(address account) internal {
  _coinFactoryAdmins.remove(account);
  emit CoinFactoryAdminRoleRemoved(account);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal Blacklist._addBlacklist

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addBlacklist(address account) internal {
  _blacklist[account] = true;
  emit BlacklistAdded(account);
}

internal Blacklist._removeBlacklist

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removeBlacklist(address account) internal {
  _blacklist[account] = false;
  emit BlacklistRemoved(account);
}

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(amount);
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 value
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = value;
  emit Approval(owner, spender, value);
}

internal ERC20._issue

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _issue(address account, uint256 amount) internal {
  require(account != address(0), "CoinFactory: issue to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
  emit Issue(account, amount);
}

internal ERC20._redeem

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _redeem(address account, uint256 value) internal {
  require(account != address(0), "CoinFactory: redeem from the zero address");

  _totalSupply = _totalSupply.sub(value);
  _balances[account] = _balances[account].sub(value);
  emit Transfer(account, address(0), value);
  emit Redeem(account, value);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal BlacklistAdminRole.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _addBlacklistAdmin(msg.sender);
}

internal BlacklistAdminRole._addBlacklistAdmin

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addBlacklistAdmin(address account) internal {
  _blacklistAdmins.add(account);
  emit BlacklistAdminAdded(account);
}

internal BlacklistAdminRole._removeBlacklistAdmin

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removeBlacklistAdmin(address account) internal {
  _blacklistAdmins.remove(account);
  emit BlacklistAdminRemoved(account);
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _owner = msg.sender;
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

HUSD

ERC20

About link

Stats

Events (15) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

BlacklistAdded Event

Parameters help Event parameters list the data that an event contains.

BlacklistAdminAdded Event

Parameters help Event parameters list the data that an event contains.

BlacklistAdminRemoved Event

Parameters help Event parameters list the data that an event contains.

BlacklistRemoved Event

Parameters help Event parameters list the data that an event contains.

CoinFactoryAdminRoleAdded Event

Parameters help Event parameters list the data that an event contains.

CoinFactoryAdminRoleRemoved Event

Parameters help Event parameters list the data that an event contains.

Issue Event

Parameters help Event parameters list the data that an event contains.

OwnershipTransferred Event

Parameters help Event parameters list the data that an event contains.

Paused Event

Parameters help Event parameters list the data that an event contains.

PauserAdded Event

Parameters help Event parameters list the data that an event contains.

PauserRemoved Event

Parameters help Event parameters list the data that an event contains.

Redeem Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

Unpaused Event

Parameters help Event parameters list the data that an event contains.

State Variables (13) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

_totalSupply Variable

_balances Variable

_allowances Variable

_totalSupply Variable

_owner Variable

_paused Variable

_pausers Variable

_coinFactoryAdmins Variable

_blacklist Variable

_blacklistAdmins Variable

Functions Expand All Collapse All

owner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

isOwner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

transferOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

isBlacklistAdmin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

addBlacklistAdmin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Source Code

removeBlacklistAdmin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

About

Events (15)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (13)

owner

Parameters

isOwner

Parameters

transferOwnership

Parameters

Modifiers

Requirements

isBlacklistAdmin

Parameters

addBlacklistAdmin

Parameters

Modifiers

removeBlacklistAdmin

Parameters

Modifiers

renounceBlacklistAdmin

Parameters

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Modifiers

Requirements

allowance

Parameters

approve

Parameters

Modifiers

Requirements

transferFrom

Parameters

Modifiers

Requirements

increaseAllowance

Parameters

Requirements

decreaseAllowance

Parameters

Requirements

isBlacklist

Parameters

addBlacklist

Parameters

Modifiers

removeBlacklist

Parameters

Modifiers

isCoinFactoryAdmin

Parameters

addCoinFactoryAdmin