XinFin XDCE

0x41ab1b6fcbb2fa9dced81acbdec13ea6315f2bf2 Copy

ERC20

This contract is an ERC20 token.

Name XinFin XDCE

Symbol XDCE

Decimals 18

Total Supply 15,000,000,000 XDCE

About

Stats

Public Functions 34

Event Types 6

Code Size 17,570 bytes

Events (6)

Approval Event

Parameters

owner	address
spender	address
value	uint

OwnershipTransferred Event

Parameters

_from	address
_to	address

Transfer Event

Parameters

from	address
to	address
value	uint

UpdatedTokenInformation Event

Parameters

newName	string
newSymbol	string

Upgrade Event

Parameters

_from	address
_to	address
_value	uint256

UpgradeAgentSet Event

Parameters

agent

address

State Variables (23)

name Variable

string

symbol Variable

string

decimals Variable

uint

isCrowdsaleOpen Variable

bool

totalSupply Variable

uint

onSaleTokens Variable

uint

upgradeMaster Variable

address

upgradeAgent Variable

address

totalUpgraded Variable

uint256

totalSupply Variable

uint

decimals Variable

uint

releaseAgent Variable

address

released Variable

bool

owner Variable

address

newOwner Variable

address

transferAgents Variable

mapping(address => bool)

tokensForPublicSale Variable

uint

Internal Variable

contractAddress Variable

address

Internal Variable

pricePerToken Variable

uint256

Internal Variable

minETH Variable

uint

Internal Variable

maxETH Variable

uint

Internal Variable

balances Variable

mapping(address => uint)

Internal Variable

allowed Variable

mapping(address => mapping(address => uint))

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) onlyOwner {
  require(_newOwner != address(0));
  newOwner = _newOwner;
}

acceptOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

newOwner must be equal to the sender's address

Source Code

function acceptOwnership() {
  require(msg.sender == newOwner);
  OwnershipTransferred(owner, newOwner);
  owner = newOwner;
}

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

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

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

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

transfer

Parameters

Name	Type
_to	address
_value	uint

Properties

Visibility public

Mutability transaction

Source Code

function transfer(address _to, uint256 _value) returns (bool success) {
  // SafMaths will automatically handle the overflow checks
  balances[msg.sender] = safeSub(balances[msg.sender], _value);
  balances[_to] = safeAdd(balances[_to], _value);
  Transfer(msg.sender, _to, _value);
  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint

Properties

Visibility public

Mutability transaction

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) returns (bool success) {
  uint256 _allowance = allowed[_from][msg.sender];

  // Check is not needed because safeSub(_allowance, _value) will already throw if this condition is not met
  balances[_to] = safeAdd(balances[_to], _value);
  balances[_from] = safeSub(balances[_from], _value);
  allowed[_from][msg.sender] = safeSub(_allowance, _value);
  Transfer(_from, _to, _value);
  return true;
}

approve

Parameters

Name	Type
_spender	address
_value	uint

Properties

Visibility public

Mutability transaction

Requirements

UNKNOWN VALUE must not be true

Source Code

function approve(address _spender, uint256 _value) returns (bool success) {
  // To change the approve amount you first have to reduce the addresses`
  //  allowance to zero by calling `approve(_spender, 0)` if it is not
  //  already 0 to mitigate the race condition described here:
  //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
  require(!((_value != 0) && (allowed[msg.sender][_spender] != 0)));

  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

setReleaseAgent

Parameters

Name	Type
addr	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

inReleaseState checks for the following:

released must be equal to false

Source Code

function setReleaseAgent(address addr) public onlyOwner inReleaseState(false) {
  // We don't do interface check here as we might want to a normal wallet address to act as a release agent
  releaseAgent = addr;
}

setTransferAgent

Parameters

Name	Type
addr	address
state	bool

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

inReleaseState checks for the following:

released must be equal to false

Source Code

function setTransferAgent(address addr, bool state)
  public
  onlyOwner
  inReleaseState(false)
{
  transferAgents[addr] = state;
}

releaseTokenTransfer

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyReleaseAgent checks for the following:

releaseAgent must be equal to the sender's address

Source Code

function releaseTokenTransfer() public onlyReleaseAgent {
  released = true;
}

safeMul

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - b must be equal to c / a - OR a must be equal to 0

Source Code

function safeMul(uint256 a, uint256 b) returns (uint256) {
  uint256 c = a * b;
  assert(a == 0 || c / a == b);
  return c;
}

safeSub

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability transaction

Requirements

b must be less than or equal to a

Source Code

function safeSub(uint256 a, uint256 b) returns (uint256) {
  assert(b <= a);
  return a - b;
}

safeAdd

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability transaction

Requirements

c must be greater than or equal to a

Source Code

function safeAdd(uint256 a, uint256 b) returns (uint256) {
  uint256 c = a + b;
  assert(c >= a);
  return c;
}

upgrade

Parameters

Name	Type
value	uint256

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - state must be equal to UpgradeState.Upgrading - OR state must be equal to UpgradeState.ReadyToUpgrade

value must not be equal to 0

Source Code

function upgrade(uint256 value) public {
  UpgradeState state = getUpgradeState();
  require(
    state == UpgradeState.ReadyToUpgrade || state == UpgradeState.Upgrading
  );

  // Validate input value.
  require(value != 0);

  balances[msg.sender] = safeSub(balances[msg.sender], value);

  // Take tokens out from circulation
  totalSupply = safeSub(totalSupply, value);
  totalUpgraded = safeAdd(totalUpgraded, value);

  // Upgrade agent reissues the tokens
  upgradeAgent.upgradeFrom(msg.sender, value);
  Upgrade(msg.sender, upgradeAgent, value);
}

setUpgradeAgent

Parameters

Name	Type
agent	address

Properties

Visibility public

Mutability transaction

Requirements

null

agent must not be equal to 0x0

upgradeMaster must be equal to the sender's address

the result of calling getUpgradeState must not be equal to UpgradeState.Upgrading

totalSupply must be equal to UNKNOWN VALUE

Source Code

function setUpgradeAgent(address agent) external {
  // The token is not yet in a state that we could think upgrading
  require(canUpgrade());

  require(agent != 0x0);
  // Only a master can designate the next agent
  require(msg.sender == upgradeMaster);
  // Upgrade has already begun for an agent
  require(getUpgradeState() != UpgradeState.Upgrading);

  upgradeAgent = UpgradeAgent(agent);

  // Bad interface
  require(upgradeAgent.isUpgradeAgent());
  // Make sure that token supplies match in source and target
  require(upgradeAgent.originalSupply() == totalSupply);

  UpgradeAgentSet(upgradeAgent);
}

getUpgradeState

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function getUpgradeState() public constant returns (UpgradeState) {
  if (!canUpgrade()) return UpgradeState.NotAllowed;
  else if (address(upgradeAgent) == 0x00) return UpgradeState.WaitingForAgent;
  else if (totalUpgraded == 0) return UpgradeState.ReadyToUpgrade;
  else return UpgradeState.Upgrading;
}

setUpgradeMaster

Parameters

Name	Type
master	address

Properties

Visibility public

Mutability transaction

Requirements

master must not be equal to 0x0

upgradeMaster must be equal to the sender's address

Source Code

function setUpgradeMaster(address master) public {
  require(master != 0x0);
  require(msg.sender == upgradeMaster);
  upgradeMaster = master;
}

canUpgrade

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function canUpgrade() public constant returns (bool) {
  return true;
}

updateTokenInformation

Parameters

Name	Type
_name	string
_symbol	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function updateTokenInformation(string _name, string _symbol) onlyOwner {
  name = _name;
  symbol = _symbol;
  UpdatedTokenInformation(name, symbol);
}

sendTokensToOwner

Parameters

Name	Type
_tokens	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_tokens must be less than or equal to balances for contractAddress

Source Code

function sendTokensToOwner(uint256 _tokens) onlyOwner returns (bool ok) {
  require(balances[contractAddress] >= _tokens);
  balances[contractAddress] = safeSub(balances[contractAddress], _tokens);
  balances[owner] = safeAdd(balances[owner], _tokens);
  return true;
}

sendTokensToInvestors

Parameters

Name	Type
_investor	address
_tokens	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_tokens must be less than or equal to balances for contractAddress

Source Code

function sendTokensToInvestors(address _investor, uint256 _tokens)
  onlyOwner
  returns (bool ok)
{
  require(balances[contractAddress] >= _tokens);
  onSaleTokens = safeSub(onSaleTokens, _tokens);
  balances[contractAddress] = safeSub(balances[contractAddress], _tokens);
  balances[_investor] = safeAdd(balances[_investor], _tokens);
  return true;
}

dispenseTokensToInvestorAddressesByValue

Parameters

Name	Type
_addresses	address[]
_value	uint[]

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 _addresses must be equal to the number of values in _value

Source Code

function dispenseTokensToInvestorAddressesByValue(
  address[] _addresses,
  uint256[] _value
) onlyOwner returns (bool ok) {
  require(_addresses.length == _value.length);
  for (uint256 i = 0; i < _addresses.length; i++) {
    onSaleTokens = safeSub(onSaleTokens, _value[i]);
    balances[_addresses[i]] = safeAdd(balances[_addresses[i]], _value[i]);
    balances[contractAddress] = safeSub(balances[contractAddress], _value[i]);
  }
  return true;
}

startCrowdSale

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function startCrowdSale() onlyOwner {
  isCrowdsaleOpen = true;
}

stopCrowdSale

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function stopCrowdSale() onlyOwner {
  isCrowdsaleOpen = false;
}

setPublicSaleParams

Parameters

Name	Type
_tokensForPublicSale	uint
_min	uint
_max	uint
_crowdsaleStatus	bool

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_tokensForPublicSale must not be equal to 0

_tokensForPublicSale must be less than or equal to onSaleTokens

_min must be greater than or equal to 0

_max must be greater than 0

Source Code

function setPublicSaleParams(
  uint256 _tokensForPublicSale,
  uint256 _min,
  uint256 _max,
  bool _crowdsaleStatus
) onlyOwner {
  require(_tokensForPublicSale != 0);
  require(_tokensForPublicSale <= onSaleTokens);
  tokensForPublicSale = _tokensForPublicSale;
  isCrowdsaleOpen = _crowdsaleStatus;
  require(_min >= 0);
  require(_max > 0);
  minETH = _min;
  maxETH = _max;
}

setTotalTokensForPublicSale

Parameters

Name	Type
_value	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_value must not be equal to 0

Source Code

function setTotalTokensForPublicSale(uint256 _value) onlyOwner {
  require(_value != 0);
  tokensForPublicSale = _value;
}

increaseSupply

Parameters

Name	Type
value	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function increaseSupply(uint256 value) onlyOwner returns (bool) {
  totalSupply = safeAdd(totalSupply, value);
  balances[contractAddress] = safeAdd(balances[contractAddress], value);
  Transfer(0x0, contractAddress, value);
  return true;
}

decreaseSupply

Parameters

Name	Type
value	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function decreaseSupply(uint256 value) onlyOwner returns (bool) {
  balances[contractAddress] = safeSub(balances[contractAddress], value);
  totalSupply = safeSub(totalSupply, value);
  Transfer(contractAddress, 0x0, value);
  return true;
}

setMinAndMaxEthersForPublicSale

Parameters

Name	Type
_min	uint
_max	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_min must be greater than or equal to 0

_max must be greater than 0

Source Code

function setMinAndMaxEthersForPublicSale(uint256 _min, uint256 _max) onlyOwner {
  require(_min >= 0);
  require(_max > 0);
  minETH = _min;
  maxETH = _max;
}

updateTokenPrice

Parameters

Name	Type
_value	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_value must not be equal to 0

Source Code

function updateTokenPrice(uint256 _value) onlyOwner {
  require(_value != 0);
  pricePerToken = _value;
}

updateOnSaleSupply

Parameters

Name	Type
_newSupply	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_newSupply must not be equal to 0

Source Code

function updateOnSaleSupply(uint256 _newSupply) onlyOwner {
  require(_newSupply != 0);
  onSaleTokens = _newSupply;
}

buyTokens

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Requirements

isCrowdsaleOpen must be true

weiAmount must be greater than or equal to minETH

weiAmount must be less than or equal to maxETH

_tokenAmount must be greater than 0

Source Code

function buyTokens() public payable returns (uint256 tokenAmount) {
  uint256 _tokenAmount;
  uint256 multiplier = (10**decimals);
  uint256 weiAmount = msg.value;

  require(isCrowdsaleOpen);
  //require(whitelistedAddress[msg.sender]);

  require(weiAmount >= minETH);
  require(weiAmount <= maxETH);

  _tokenAmount = safeMul(weiAmount, multiplier) / pricePerToken;

  require(_tokenAmount > 0);

  //safe sub will automatically handle overflows
  tokensForPublicSale = safeSub(tokensForPublicSale, _tokenAmount);
  onSaleTokens = safeSub(onSaleTokens, _tokenAmount);
  balances[contractAddress] = safeSub(balances[contractAddress], _tokenAmount);
  //assign tokens
  balances[msg.sender] = safeAdd(balances[msg.sender], _tokenAmount);

  //send money to the owner
  require(owner.send(weiAmount));

  return _tokenAmount;
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Requirements

isCrowdsaleOpen must be true

weiAmount must be greater than or equal to minETH

weiAmount must be less than or equal to maxETH

_tokenAmount must be greater than 0

Source Code

function() payable {
  buyTokens();
}

destroyToken

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function destroyToken() public onlyOwner {
  selfdestruct(msg.sender);
}

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.

XinFin XDCE

ERC20

About

Stats

Events (6) keyboard_arrow_up

Approval 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.

UpdatedTokenInformation Event

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

Upgrade Event

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

UpgradeAgentSet Event

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

State Variables (23) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

isCrowdsaleOpen Variable

totalSupply Variable

onSaleTokens Variable

upgradeMaster Variable

upgradeAgent Variable

totalUpgraded Variable

totalSupply Variable

decimals Variable

releaseAgent Variable

released Variable

owner Variable

newOwner Variable

transferAgents Variable

tokensForPublicSale Variable

contractAddress Variable

pricePerToken Variable

minETH Variable

maxETH Variable

balances 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

acceptOwnership 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

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

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

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

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

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

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

setReleaseAgent 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:

Events (6)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (23)

transferOwnership

Parameters

Modifiers

Requirements

acceptOwnership

Parameters

Requirements

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

transferFrom

Parameters

approve

Parameters

Requirements

setReleaseAgent

Parameters

Modifiers

setTransferAgent

Parameters

Modifiers

releaseTokenTransfer

Parameters

Modifiers

safeMul

Parameters

Requirements

safeSub

Parameters

Requirements

safeAdd

Parameters

Requirements

upgrade

Parameters

Requirements

setUpgradeAgent

Parameters

Requirements

getUpgradeState

Parameters

setUpgradeMaster

Parameters

Requirements

canUpgrade

Parameters

updateTokenInformation

Parameters

Modifiers

sendTokensToOwner

Parameters

Modifiers

Requirements

sendTokensToInvestors

Parameters