Cashaa

0xe8780b48bdb05f928697a5e8155f672ed91462f7

balanceOf keyboard_arrow_up

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

transfer keyboard_arrow_up

  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;
  }

allowance keyboard_arrow_up

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

transferFrom keyboard_arrow_up

  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;
  }

approve keyboard_arrow_up

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

increaseApproval keyboard_arrow_up

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

decreaseApproval keyboard_arrow_up

  function decreaseApproval (address _spender, uint _subtractedValue)
    returns (bool success) {
    uint 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;
  }

isToken keyboard_arrow_up

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

upgrade keyboard_arrow_up

  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);
  }

setUpgradeAgent keyboard_arrow_up

  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);
  }

getUpgradeState keyboard_arrow_up

  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 keyboard_arrow_up

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

canUpgrade keyboard_arrow_up

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

burn keyboard_arrow_up

  function burn(uint 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);
  }

setTokenInformation keyboard_arrow_up

  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);
  }

transfer keyboard_arrow_up

  function transfer(address _to, uint _value) returns (bool success) {

    if(now > releaseFinalizationDate) {
      if(!released) {
        throw;
      }
    }

    return super.transfer(_to, _value);
  }

releaseTokenTransfer keyboard_arrow_up

  function releaseTokenTransfer() {
    if(msg.sender != upgradeMaster) {
      throw;
    }

    released = true;
  }