mikec

contract KeyValueStorage {

  mapping(address => mapping(bytes32 => uint256)) _uintStorage;
  mapping(address => mapping(bytes32 => address)) _addressStorage;
  mapping(address => mapping(bytes32 => bool)) _boolStorage;

  /**** Get Methods ***********/

  function getAddress(bytes32 key) public view returns (address) {
      return _addressStorage[msg.sender][key];

mikec

contract TokenDelegate is StorageStateful {
  using SafeMath for uint256;

  function transfer(address to, uint256 value) public returns (bool) {
    require(to != address(0));
    require(value <= getBalance(msg.sender));

    subBalance(msg.sender, value);
    addBalance(to, value);
    return true;

mikec

contract MintableTokenDelegate is TokenDelegate {

  modifier onlyOwner {
    require(msg.sender == _storage.getAddress("owner"));
    _;
  }
  
  modifier canMint() {
    require(!_storage.getBool("mintingFinished"));
    _;

mikec

pragma solidity ^0.4.19;

/**
 * @title Proxy
 * @dev Gives the possibility to delegate any call to a foreign implementation.
 */
contract Proxy {

  /**
  * @dev Tells the address of the implementation where every call will be delegated.

mikec

0xDf08F82De32B8d460adbE8D72043E3a7e25A3B39

mikec

  function () public payable {
    address _impl = implementation();
    require(_impl != address(0));
    bytes memory data = msg.data;

    assembly {
      /*
        delegatecall params explained:
          gas: the amount of gas to provide for the call. `gas` is an Opcode that gives
               us the amount of gas still available to execution

mikec

Keybase proof

I hereby claim:

• I am mikec on github.
• I am mfcalvanese (https://keybase.io/mfcalvanese) on keybase.
• I have a public key ASC2U7FJ9viEUuSWGob0tqkGSyhZ0d9oT-lANaSPxaDklAo

To claim this, I am signing this object:

mikec

benchmark gas @ 150 gwei, 1 ETH = $350

  Account transactions
    Deploy proxy account: $7.69, 0.02196825 ETH, 146455 gas
    ✓ Deploy proxy account (directly) (202ms)
    Deploy proxy account (via ContractDeployer): $7.83, 0.022359 ETH, 149060 gas
    ✓ Deploy proxy account (via ContractDeployer) (252ms)
    1st Tx: Transfer ETH (via executeCall): $3.22, 0.0092013 ETH, 61342 gas
    2nd Tx: Transfer ETH (via executeCall): $2.43, 0.0069543 ETH, 46362 gas
    3rd Tx: Transfer ETH (via executeCall): $2.43, 0.0069513 ETH, 46342 gas