Blockwell

Cashaa

ERC20

This contract is an ERC20 token.

Name Cashaa
Symbol CAS
Decimals 18
Total Supply 1,000,000,000 CAS

About

Stats

Public Functions 17
Event Types 6
Code Size 15,316 bytes

Events (6) keyboard_arrow_up

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Burned Event

Parameters help
burner
address help
burnedAmount
uint help

Transfer Event

Parameters help
from
address help
to
address help
value
uint256 help

UpdatedTokenInformation Event

Parameters help
newName
string help
newSymbol
string help

Upgrade Event

Parameters help
_from
address help
_to
address help
_value
uint256 help

UpgradeAgentSet Event

Parameters help
agent
address help

BURN_ADDRESS Constant

address help
0

name Variable

string help

symbol Variable

string help

decimals Variable

uint help

released Variable

bool help

releaseFinalizationDate Variable

uint help

totalSupply Variable

uint256 help

upgradeMaster Variable

address help

upgradeAgent Variable

address help

totalUpgraded Variable

uint256 help

allowed Variable

mapping(address => mapping(address => uint256)) help
Internal Variable

balances Variable

mapping(address => uint256) help
Internal Variable

Functions Expand All Collapse All

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help constant
Source Code
function balanceOf(address _owner) public constant returns (uint256 balance) {
  return balances[_owner];
}

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transfer(address _to, uint256 _value) public returns (bool) {
  require(_to != address(0));

  // SafeMath.sub will throw if there is not enough balance.
  balances[msg.sender] = balances[msg.sender].sub(_value);
  balances[_to] = balances[_to].add(_value);
  Transfer(msg.sender, _to, _value);
  return true;
}

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

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

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool) {
  require(_to != address(0));

  uint256 _allowance = allowed[_from][msg.sender];

  // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
  // require (_value <= _allowance);

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

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function approve(address _spender, uint256 _value) public returns (bool) {
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

Parameters help

Name Type
_spender
address help
_addedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function increaseApproval(address _spender, uint256 _addedValue)
  returns (bool success)
{
  allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(
    _addedValue
  );
  Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

Parameters help

Name Type
_spender
address help
_subtractedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function decreaseApproval(address _spender, uint256 _subtractedValue)
  returns (bool success)
{
  uint256 oldValue = allowed[msg.sender][_spender];
  if (_subtractedValue > oldValue) {
    allowed[msg.sender][_spender] = 0;
  } else {
    allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
  }
  Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help constant
Source Code
function isToken() public constant returns (bool weAre) {
  return true;
}

Parameters help

Name Type
value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function upgrade(uint256 value) public {
  UpgradeState state = getUpgradeState();
  if (
    !(state == UpgradeState.ReadyToUpgrade || state == UpgradeState.Upgrading)
  ) {
    // Called in a bad state
    throw;
  }

  // Validate input value.
  if (value == 0) throw;

  balances[msg.sender] = balances[msg.sender].sub(value);

  // Take tokens out from circulation
  totalSupply = totalSupply.sub(value);
  totalUpgraded = totalUpgraded.add(value);

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

Parameters help

Name Type
agent
address help

Properties

Visibility help public
Mutability help transaction
Source Code
function setUpgradeAgent(address agent) external {
  if (!canUpgrade()) {
    // The token is not yet in a state that we could think upgrading
    throw;
  }

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

  upgradeAgent = UpgradeAgent(agent);

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

  UpgradeAgentSet(upgradeAgent);
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help 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;
}

Parameters help

Name Type
master
address help

Properties

Visibility help public
Mutability help transaction
Source Code
function setUpgradeMaster(address master) public {
  if (master == 0x0) throw;
  if (msg.sender != upgradeMaster) throw;
  upgradeMaster = master;
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help constant
Source Code
function canUpgrade() public constant returns (bool) {
  return true;
}

Parameters help

Name Type
burnAmount
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function burn(uint256 burnAmount) {
  address burner = msg.sender;
  balances[burner] = balances[burner].sub(burnAmount);
  totalSupply = totalSupply.sub(burnAmount);
  Burned(burner, burnAmount);

  // Inform the blockchain explores that track the
  // balances only by a transfer event that the balance in this
  // address has decreased
  Transfer(burner, BURN_ADDRESS, burnAmount);
}

Parameters help

Name Type
_name
string help
_symbol
string help

Properties

Visibility help public
Mutability help transaction
Source Code
function setTokenInformation(string _name, string _symbol) {
  if (msg.sender != upgradeMaster) {
    throw;
  }

  if (bytes(name).length > 0 || bytes(symbol).length > 0) {
    // Information already set
    // Allow owner to set this information only once
    throw;
  }

  name = _name;
  symbol = _symbol;
  UpdatedTokenInformation(name, symbol);
}

Parameters help

Name Type
_to
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transfer(address _to, uint256 _value) returns (bool success) {
  if (now > releaseFinalizationDate) {
    if (!released) {
      throw;
    }
  }

  return super.transfer(_to, _value);
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
function releaseTokenTransfer() {
  if (msg.sender != upgradeMaster) {
    throw;
  }

  released = true;
}

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.