POA ERC20 on Foundation

0x6758b7d441a9739b98552b373703d8d3d14f9e62 Copy

ERC20

This contract is an ERC20 token.

Name POA ERC20 on Foundation

Symbol POA20

Decimals 18

Total Supply 27,068,428 POA20

About

Stats

Public Functions 14

Event Types 7

Code Size 13,848 bytes

Events (7)

Approval Event

Parameters

owner	address
spender	address
value	uint256

Burn Event

Parameters

burner	address
value	uint256

Mint Event

Parameters

to	address
amount	uint256

MintFinished Event

Parameters

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Transfer Event

Parameters

from	address
to	address
value	uint256

Transfer Event

Parameters

from	address
to	address
value	uint
data	bytes

State Variables (8)

name Variable

string

symbol Variable

string

decimals Variable

uint8

mintingFinished Variable

bool

owner Variable

address

balances Variable

mapping(address => uint256)

Internal Variable

totalSupply_ Variable

uint256

Internal Variable

allowed Variable

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

Internal Variable

Functions Expand All Collapse All

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  require(newOwner != address(0));
  emit OwnershipTransferred(owner, newOwner);
  owner = newOwner;
}

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
_owner	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address _owner) public view returns (uint256) {
  return balances[_owner];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_to must not be equal to UNKNOWN VALUE

_value must be less than or equal to balances for the sender's address

Source Code

function transfer(address _to, uint256 _value) public returns (bool) {
  require(_to != address(0));
  require(_value <= balances[msg.sender]);

  balances[msg.sender] = balances[msg.sender].sub(_value);
  balances[_to] = balances[_to].add(_value);
  emit Transfer(msg.sender, _to, _value);
  return true;
}

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 allowed[_owner][_spender];
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_to must not be equal to UNKNOWN VALUE

_value must be less than or equal to balances for _from

_value must be less than or equal to allowed for _from for the sender's address

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool) {
  require(_to != address(0));
  require(_value <= balances[_from]);
  require(_value <= allowed[_from][msg.sender]);

  balances[_from] = balances[_from].sub(_value);
  balances[_to] = balances[_to].add(_value);
  allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
  emit Transfer(_from, _to, _value);
  return true;
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function approve(address _spender, uint256 _value) public returns (bool) {
  allowed[msg.sender][_spender] = _value;
  emit Approval(msg.sender, _spender, _value);
  return true;
}

increaseApproval

Parameters

Name	Type
_spender	address
_addedValue	uint

Properties

Visibility public

Mutability transaction

Source Code

function increaseApproval(address _spender, uint256 _addedValue)
  public
  returns (bool)
{
  allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(
    _addedValue
  );
  emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

decreaseApproval

Parameters

Name	Type
_spender	address
_subtractedValue	uint

Properties

Visibility public

Mutability transaction

Source Code

function decreaseApproval(address _spender, uint256 _subtractedValue)
  public
  returns (bool)
{
  uint256 oldValue = allowed[msg.sender][_spender];
  if (_subtractedValue > oldValue) {
    allowed[msg.sender][_spender] = 0;
  } else {
    allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
  }
  emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

mint

Parameters

Name	Type
	address
	uint256

Properties

Visibility public

Mutability transaction

Source Code

function mint(address, uint256) public returns (bool);

finishMinting

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function finishMinting() public returns (bool) {
  revert();
}

burn

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function burn(uint256 _value) public;

transferAndCall

Parameters

Name	Type
_to	address
_value	uint
_data	bytes

Properties

Visibility public

Mutability transaction

Modifiers

validRecipient checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

null

Source Code

function transferAndCall(
  address _to,
  uint256 _value,
  bytes _data
) external validRecipient(_to) returns (bool) {
  require(transfer(_to, _value));
  emit Transfer(msg.sender, _to, _value, _data);
  if (isContract(_to)) {
    require(contractFallback(_to, _value, _data));
  }
  return true;
}

claimTokens

Parameters

Name	Type
_token	address
_to	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_to must not be equal to UNKNOWN VALUE

Source Code

function claimTokens(address _token, address _to) public onlyOwner {
  require(_to != address(0));
  if (_token == address(0)) {
    _to.transfer(address(this).balance);
    return;
  }

  DetailedERC20 token = DetailedERC20(_token);
  uint256 balance = token.balanceOf(address(this));
  require(token.transfer(_to, balance));
}

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 POA20.contractFallback

Parameters

Name	Type
_to	address
_value	uint
_data	bytes

Properties

Visibility private

Mutability transaction

Source Code

function contractFallback(
  address _to,
  uint256 _value,
  bytes _data
) private returns (bool) {
  ERC677Receiver receiver = ERC677Receiver(_to);
  return receiver.onTokenTransfer(msg.sender, _value, _data);
}

internal POA20.isContract

Parameters

Name	Type
_addr	address

Properties

Visibility private

Mutability view

Source Code

function isContract(address _addr) private view returns (bool) {
  uint256 length;
  assembly {
    length := extcodesize(_addr)
  }
  return length > 0;
}

internal BurnableToken._burn

Parameters

Name	Type
_who	address
_value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

_value must be less than or equal to balances for _who

Source Code

function _burn(address _who, uint256 _value) internal {
  require(_value <= balances[_who]);
  // no need to require value <= totalSupply, since that would imply the
  // sender's balance is greater than the totalSupply, which *should* be an assertion failure

  balances[_who] = balances[_who].sub(_value);
  totalSupply_ = totalSupply_.sub(_value);
  emit Burn(_who, _value);
  emit Transfer(_who, address(0), _value);
}

POA ERC20 on Foundation

ERC20

About

Stats

Events (7) keyboard_arrow_up

Approval Event

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

Burn Event

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

Mint Event

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

MintFinished 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.

Transfer 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.

State Variables (8) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

mintingFinished Variable

owner Variable

balances Variable

totalSupply_ Variable

allowed Variable

Functions Expand All Collapse All

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

totalSupply 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

balanceOf 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

transfer keyboard_arrow_up

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

Properties

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

allowance 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

transferFrom keyboard_arrow_up

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

Properties

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

approve 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

increaseApproval 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

decreaseApproval 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

mint 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

finishMinting 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

burn keyboard_arrow_up

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

Events (7)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (8)

transferOwnership

Parameters

Modifiers

Requirements

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

transferFrom

Parameters

Requirements

approve

Parameters

increaseApproval

Parameters

decreaseApproval

Parameters

mint

Parameters

finishMinting

Parameters

burn

Parameters

transferAndCall

Parameters

Modifiers

Requirements

claimTokens

Parameters

Modifiers

Requirements

internal POA20.contractFallback

Parameters

internal POA20.isContract

Parameters

internal BurnableToken._burn

Parameters

Requirements