pprados

pragma solidity ^0.4.8; // Enable Optimization

/**
 * Multi owned events.
 */
contract MultiOwnedEvents {
	// EVENTS
    // this contract only has six types of events: it can accept a confirmation, in which case
    // we record owner and operation (hash) alongside it.
    event Confirmation(address owner, bytes32 operation);

pprados

pragma solidity ^0.4.8;

contract Versionable {
    event VersionChanged(Versionable version);
    
    Versionable public /* FIXME internal*/ currentVersion;
    bool        internal isInit;
    address     private  owner;

    /**

pprados

pragma solidity ^0.4.8;

/**
 * Interface shared by Proxy, ContractV1 and ContractV2.
 */
contract Interface {
    /** return uint, depend of the current version. */
    function doSomething() constant returns(uint);
}

pprados

pragma solidity ^0.4.8;

/**
 * Interface shared by Proxy, ContractV1 and ContractV2.
 */
contract Interface {
    /** return uint, depend of the current version. */
    function doSomething() constant returns(uint);
}

pprados

pragma solidity ^0.4.8;

/**
 * Interface shared by Proxy, ContractV1 and ContractV2.
 */
contract Interface {
    /** return uint, depend of the current version. */
    function doSomething() constant returns(uint);
}

pprados

pragma solidity ^0.4.8;

// -- Technical contract
/** 
 * Database contract. 
 * Use to share the state between v1 and v2.
 */
contract ContractDB {
    /** Generic map. */
    mapping(string => uint) map;

pprados

pragma solidity ^0.4.8;

/**
 * The version 1 of the contract.
 * The attr is initialized to 1000.
 * The method doSomething() return attr + version = 1001
 */
contract ContractV1 {
    uint constant private version=1;
    uint public attr=1000;