LikeCoin

0x02f61fd266da6e8b102d4121f5ce7b992640cf98 Copy

ERC20

This contract is an ERC20 token.

Name LikeCoin

Symbol LIKE

Decimals 18

Total Supply 250,074,238 LIKE

About

Stats

Public Functions 26

Event Types 5

Code Size 15,491 bytes

Library Use

Uses SafeMath for uint256.

Events (5)

Approval Event

Parameters

owner	address
spender	address
value	uint256

Lock Event

Parameters

_addr	address
_value	uint256

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

SignatureCheckerChanged Event

Parameters

_newSignatureChecker

address

Transfer Event

Parameters

from	address
to	address
value	uint256

Constants (3)

name Constant

string

LikeCoin

symbol Constant

string

decimals Constant

uint8

State Variables (20)

supply Variable

uint256

crowdsaleAddr Variable

address

contributorPoolAddr Variable

address

contributorPoolMintQuota Variable

uint256

creatorsPoolMintQuota Variable

uint256

unlockTime Variable

uint

signatureChecker Variable

address

signatureCheckerFreezed Variable

bool

signatureOwner Variable

address

allowDelegate Variable

bool

operator Variable

address

pendingOwner Variable

address

owner Variable

address

balances Variable

mapping(address => uint256)

lockedBalances Variable

mapping(address => uint256)

transferAndCallWhitelist Variable

mapping(address => bool)

allowed Variable

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

Internal Variable

creatorsPoolAddrs Variable

address[]

Internal Variable

isCreatorsPool Variable

mapping(address => bool)

Internal Variable

usedNonce Variable

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

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

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  pendingOwner = newOwner;
}

claimOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPendingOwner checks for the following:

pendingOwner must be equal to the sender's address

Source Code

function claimOwnership() public onlyPendingOwner {
  OwnershipTransferred(owner, pendingOwner);
  owner = pendingOwner;
  pendingOwner = address(0);
}

setOperator

Parameters

Name	Type
_operator	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function setOperator(address _operator) public onlyOwner {
  operator = _operator;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function totalSupply() public constant returns (uint256) {
  return supply;
}

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _owner) public constant returns (uint256 balance) {
  return balances[_owner] + lockedBalances[_owner];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

_to must not be equal to 0x0

Source Code

function transfer(address _to, uint256 _value) public returns (bool success) {
  return _transfer(msg.sender, _to, _value);
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

function allowance(address _owner, address _spender)
  public
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender];
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

_to must not be equal to 0x0

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool success) {
  allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
  _transfer(_from, _to, _value);
  return true;
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - allowed for the sender's address for _spender must be equal to 0 - OR _value must be equal to 0

Source Code

function approve(address _spender, uint256 _value)
  public
  returns (bool success)
{
  require(_value == 0 || allowed[msg.sender][_spender] == 0);
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

transferAndLock

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

_to must not be equal to 0x0

now must be less than unlockTime

One or more of the following: - operator must be equal to the sender's address - OR owner must be equal to the sender's address - OR crowdsaleAddr must be equal to the sender's address

Source Code

function transferAndLock(address _to, uint256 _value)
  public
  returns (bool success)
{
  require(msg.sender != 0x0);
  require(_to != 0x0);
  require(now < unlockTime);
  require(
    msg.sender == crowdsaleAddr || msg.sender == owner || msg.sender == operator
  );
  balances[msg.sender] = balances[msg.sender].sub(_value);
  lockedBalances[_to] = lockedBalances[_to].add(_value);
  Transfer(msg.sender, _to, _value);
  Lock(_to, _value);
  return true;
}

transferMultiple

Parameters

Name	Type
_addrs	address[]
_values	uint256[]

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

the number of values in _addrs must be greater than 0

the number of values in _values must be equal to the number of values in _addrs

Source Code

function transferMultiple(address[] _addrs, uint256[] _values)
  public
  returns (bool success)
{
  return _transferMultiple(msg.sender, _addrs, _values);
}

transferAndCall

Parameters

Name	Type
_to	address
_value	uint256
_data	bytes

Properties

Visibility public

Mutability transaction

Requirements

null

Source Code

function transferAndCall(
  address _to,
  uint256 _value,
  bytes _data
) public returns (bool success) {
  return _transferAndCall(msg.sender, _to, _value, _data);
}

setSignatureChecker

Parameters

Name	Type
_sigCheckerAddr	address

Properties

Visibility public

Mutability transaction

Requirements

signatureOwner must be equal to the sender's address

signatureCheckerFreezed must not be true

signatureChecker must not be equal to _sigCheckerAddr

Source Code

function setSignatureChecker(address _sigCheckerAddr) public {
  require(msg.sender == signatureOwner);
  require(!signatureCheckerFreezed);
  require(signatureChecker != _sigCheckerAddr);
  signatureChecker = SignatureChecker(_sigCheckerAddr);
  SignatureCheckerChanged(_sigCheckerAddr);
}

freezeSignatureChecker

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

signatureOwner must be equal to the sender's address

signatureCheckerFreezed must not be true

Source Code

function freezeSignatureChecker() public {
  require(msg.sender == signatureOwner);
  require(!signatureCheckerFreezed);
  signatureCheckerFreezed = true;
}

transferDelegated

Parameters

Name	Type
_from	address
_to	address
_value	uint256
_maxReward	uint256
_claimedReward	uint256
_nonce	uint256
_signature	bytes

Properties

Visibility public

Mutability transaction

Modifiers

isDelegated checks for the following:

allowDelegate must be true

_from must not be equal to 0x0

_claimedReward must be less than or equal to _maxReward

usedNonce for _from for _nonce must not be true

null

Requirements

the sender's address must not be equal to 0x0

_to must not be equal to 0x0

Source Code

function transferDelegated(
  address _from,
  address _to,
  uint256 _value,
  uint256 _maxReward,
  uint256 _claimedReward,
  uint256 _nonce,
  bytes _signature
)
  public
  isDelegated(_from, _maxReward, _claimedReward, _nonce)
  returns (bool success)
{
  require(
    signatureChecker.checkTransferDelegated(
      _from,
      _to,
      _value,
      _maxReward,
      _nonce,
      _signature
    )
  );
  return _transfer(_from, _to, _value);
}

transferAndCallDelegated

Parameters

Name	Type
_from	address
_to	address
_value	uint256
_data	bytes
_maxReward	uint256
_claimedReward	uint256
_nonce	uint256
_signature	bytes

Properties

Visibility public

Mutability transaction

Modifiers

isDelegated checks for the following:

allowDelegate must be true

_from must not be equal to 0x0

_claimedReward must be less than or equal to _maxReward

usedNonce for _from for _nonce must not be true

null

Requirements

null

Source Code

function transferAndCallDelegated(
  address _from,
  address _to,
  uint256 _value,
  bytes _data,
  uint256 _maxReward,
  uint256 _claimedReward,
  uint256 _nonce,
  bytes _signature
)
  public
  isDelegated(_from, _maxReward, _claimedReward, _nonce)
  returns (bool success)
{
  require(
    signatureChecker.checkTransferAndCallDelegated(
      _from,
      _to,
      _value,
      _data,
      _maxReward,
      _nonce,
      _signature
    )
  );
  return _transferAndCall(_from, _to, _value, _data);
}

transferMultipleDelegated

Parameters

Name	Type
_from	address
_addrs	address[]
_values	uint256[]
_maxReward	uint256
_claimedReward	uint256
_nonce	uint256
_signature	bytes

Properties

Visibility public

Mutability transaction

Modifiers

isDelegated checks for the following:

allowDelegate must be true

_from must not be equal to 0x0

_claimedReward must be less than or equal to _maxReward

usedNonce for _from for _nonce must not be true

null

Requirements

the sender's address must not be equal to 0x0

the number of values in _addrs must be greater than 0

the number of values in _values must be equal to the number of values in _addrs

Source Code

function transferMultipleDelegated(
  address _from,
  address[] _addrs,
  uint256[] _values,
  uint256 _maxReward,
  uint256 _claimedReward,
  uint256 _nonce,
  bytes _signature
)
  public
  isDelegated(_from, _maxReward, _claimedReward, _nonce)
  returns (bool success)
{
  require(
    signatureChecker.checkTransferMultipleDelegated(
      _from,
      _addrs,
      _values,
      _maxReward,
      _nonce,
      _signature
    )
  );
  return _transferMultiple(_from, _addrs, _values);
}

switchDelegate

Parameters

Name	Type
_allowed	bool

Properties

Visibility public

Mutability transaction

Modifiers

ownerOrOperator checks for the following:

One or more of the following: - operator must be equal to the sender's address - OR owner must be equal to the sender's address

Requirements

allowDelegate must not be equal to _allowed

Source Code

function switchDelegate(bool _allowed) public ownerOrOperator {
  require(allowDelegate != _allowed);
  allowDelegate = _allowed;
}

addTransferAndCallWhitelist

Parameters

Name	Type
_contract	address

Properties

Visibility public

Mutability transaction

Modifiers

ownerOrOperator checks for the following:

One or more of the following: - operator must be equal to the sender's address - OR owner must be equal to the sender's address

Requirements

null

transferAndCallWhitelist for _contract must not be true

Source Code

function addTransferAndCallWhitelist(address _contract) public ownerOrOperator {
  require(_isContract(_contract));
  require(!transferAndCallWhitelist[_contract]);
  transferAndCallWhitelist[_contract] = true;
}

removeTransferAndCallWhitelist

Parameters

Name	Type
_contract	address

Properties

Visibility public

Mutability transaction

Modifiers

ownerOrOperator checks for the following:

One or more of the following: - operator must be equal to the sender's address - OR owner must be equal to the sender's address

Source Code

function removeTransferAndCallWhitelist(address _contract)
  public
  ownerOrOperator
{
  require(transferAndCallWhitelist[_contract]);
  delete transferAndCallWhitelist[_contract];
}

burn

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function burn(uint256 _value) public {
  balances[msg.sender] = balances[msg.sender].sub(_value);
  supply = supply.sub(_value);
  Transfer(msg.sender, 0x0, _value);
}

registerCrowdsales

Parameters

Name	Type
_crowdsaleAddr	address
_value	uint256
_privateFundUnlockTime	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

crowdsaleAddr must be equal to 0x0

_crowdsaleAddr must not be equal to 0x0

null

_privateFundUnlockTime must be greater than now

_value must not be equal to 0

Source Code

function registerCrowdsales(
  address _crowdsaleAddr,
  uint256 _value,
  uint256 _privateFundUnlockTime
) public onlyOwner {
  require(crowdsaleAddr == 0x0);
  require(_crowdsaleAddr != 0x0);
  require(_isContract(_crowdsaleAddr));
  require(_privateFundUnlockTime > now);
  require(_value != 0);
  unlockTime = _privateFundUnlockTime;
  crowdsaleAddr = _crowdsaleAddr;
  supply = supply.add(_value);
  balances[_crowdsaleAddr] = balances[_crowdsaleAddr].add(_value);
  Transfer(0x0, crowdsaleAddr, _value);
}

registerContributorPool

Parameters

Name	Type
_contributorPoolAddr	address
_mintLimit	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

contributorPoolAddr must be equal to 0x0

_contributorPoolAddr must not be equal to 0x0

null

_mintLimit must not be equal to 0

Source Code

function registerContributorPool(
  address _contributorPoolAddr,
  uint256 _mintLimit
) public onlyOwner {
  require(contributorPoolAddr == 0x0);
  require(_contributorPoolAddr != 0x0);
  require(_isContract(_contributorPoolAddr));
  require(_mintLimit != 0);
  contributorPoolAddr = _contributorPoolAddr;
  contributorPoolMintQuota = _mintLimit;
}

mintForContributorPool

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

contributorPoolAddr must be equal to the sender's address

_value must not be equal to 0

Source Code

function mintForContributorPool(uint256 _value) public {
  require(msg.sender == contributorPoolAddr);
  require(_value != 0);
  contributorPoolMintQuota = contributorPoolMintQuota.sub(_value);
  supply = supply.add(_value);
  balances[msg.sender] = balances[msg.sender].add(_value);
  Transfer(0x0, msg.sender, _value);
}

registerCreatorsPools

Parameters

Name	Type
_poolAddrs	address[]
_mintLimit	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

the number of values in creatorsPoolAddrs must be equal to 0

the number of values in _poolAddrs must be greater than 0

_mintLimit must be greater than 0

Source Code

function registerCreatorsPools(address[] _poolAddrs, uint256 _mintLimit)
  public
  onlyOwner
{
  require(creatorsPoolAddrs.length == 0);
  require(_poolAddrs.length > 0);
  require(_mintLimit > 0);
  for (uint256 i = 0; i < _poolAddrs.length; ++i) {
    require(_isContract(_poolAddrs[i]));
    creatorsPoolAddrs.push(_poolAddrs[i]);
    isCreatorsPool[_poolAddrs[i]] = true;
  }
  creatorsPoolMintQuota = _mintLimit;
}

mintForCreatorsPool

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must not be equal to 0

Source Code

function mintForCreatorsPool(uint256 _value) public {
  require(isCreatorsPool[msg.sender]);
  require(_value != 0);
  creatorsPoolMintQuota = creatorsPoolMintQuota.sub(_value);
  supply = supply.add(_value);
  balances[msg.sender] = balances[msg.sender].add(_value);
  Transfer(0x0, msg.sender, _value);
}

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 LikeCoin._tryUnlockBalance

Parameters

Name	Type
_from	address

Properties

Visibility internal

Mutability transaction

Source Code

function _tryUnlockBalance(address _from) internal {
  if (unlockTime != 0 && now >= unlockTime && lockedBalances[_from] > 0) {
    balances[_from] = balances[_from].add(lockedBalances[_from]);
    delete lockedBalances[_from];
  }
}

internal LikeCoin._transfer

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

_to must not be equal to 0x0

Source Code

function _transfer(
  address _from,
  address _to,
  uint256 _value
) internal returns (bool success) {
  _tryUnlockBalance(_from);
  require(_from != 0x0);
  require(_to != 0x0);
  balances[_from] = balances[_from].sub(_value);
  balances[_to] = balances[_to].add(_value);
  Transfer(_from, _to, _value);
  return true;
}

internal LikeCoin._transferMultiple

Parameters

Name	Type
_from	address
_addrs	address[]
_values	uint256[]

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to 0x0

the number of values in _addrs must be greater than 0

the number of values in _values must be equal to the number of values in _addrs

Source Code

function _transferMultiple(
  address _from,
  address[] _addrs,
  uint256[] _values
) internal returns (bool success) {
  require(_from != 0x0);
  require(_addrs.length > 0);
  require(_values.length == _addrs.length);
  _tryUnlockBalance(_from);
  uint256 total = 0;
  for (uint256 i = 0; i < _addrs.length; ++i) {
    address addr = _addrs[i];
    require(addr != 0x0);
    uint256 value = _values[i];
    balances[addr] = balances[addr].add(value);
    total = total.add(value);
    Transfer(_from, addr, value);
  }
  balances[_from] = balances[_from].sub(total);
  return true;
}

internal LikeCoin._isContract

Parameters

Name	Type
_addr	address

Properties

Visibility internal

Mutability constant

Source Code

function _isContract(address _addr) internal constant returns (bool) {
  uint256 length;
  assembly {
    length := extcodesize(_addr)
  }
  return (length > 0);
}

internal LikeCoin._transferAndCall

Parameters

Name	Type
_from	address
_to	address
_value	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

null

Source Code

function _transferAndCall(
  address _from,
  address _to,
  uint256 _value,
  bytes _data
) internal returns (bool success) {
  require(_isContract(_to));
  require(transferAndCallWhitelist[_to]);
  require(_transfer(_from, _to, _value));
  TransferAndCallReceiver(_to).tokenCallback(_from, _value, _data);
  return true;
}

LikeCoin

ERC20

About

Stats

Library Use

Events (5) keyboard_arrow_up

Approval Event

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

Lock 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.

SignatureCheckerChanged 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.

Constants (3) keyboard_arrow_up

name Constant

symbol Constant

decimals Constant

State Variables (20) keyboard_arrow_up

supply Variable

crowdsaleAddr Variable

contributorPoolAddr Variable

contributorPoolMintQuota Variable

creatorsPoolMintQuota Variable

unlockTime Variable

signatureChecker Variable

signatureCheckerFreezed Variable

signatureOwner Variable

allowDelegate Variable

operator Variable

pendingOwner Variable

owner Variable

balances Variable

lockedBalances Variable

transferAndCallWhitelist Variable

allowed Variable

creatorsPoolAddrs Variable

isCreatorsPool Variable

usedNonce 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:

Source Code

claimOwnership 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.

onlyPendingOwner checks for the following:

Source Code

setOperator 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

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

Events (5)

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (3)

State Variables (20)

transferOwnership

Parameters

Modifiers

claimOwnership

Parameters

Modifiers

setOperator

Parameters

Modifiers

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

transferFrom

Parameters

Requirements

approve

Parameters

Requirements

transferAndLock

Parameters

Requirements

transferMultiple

Parameters

Requirements

transferAndCall

Parameters

Requirements

setSignatureChecker

Parameters

Requirements

freezeSignatureChecker

Parameters

Requirements

transferDelegated

Parameters

Modifiers

Requirements

transferAndCallDelegated

Parameters

Modifiers

Requirements

transferMultipleDelegated

Parameters

Modifiers

Requirements

switchDelegate

Parameters

Modifiers

Requirements

addTransferAndCallWhitelist

Parameters

Modifiers

Requirements

removeTransferAndCallWhitelist

Parameters