unFederalReserve

1pragma solidity ^0.5.16;
2​
3import "./ErrorReporter.sol";
4import "./ComptrollerStorage.sol";
5/**
6 * @title ComptrollerCore
7 * @dev Storage for the comptroller is at this address, while execution is delegated to the `comptrollerImplementation`.
8 * CTokens should reference this contract as their comptroller.
9 */
10contract Unitroller is UnitrollerAdminStorage, ComptrollerErrorReporter {
11​
12    /**
13      * @notice Emitted when pendingComptrollerImplementation is changed
14      */
15    event NewPendingImplementation(address oldPendingImplementation, address newPendingImplementation);
16​
17    /**
18      * @notice Emitted when pendingComptrollerImplementation is accepted, which means comptroller implementation is updated
19      */
20    event NewImplementation(address oldImplementation, address newImplementation);
21​
22    /**
23      * @notice Emitted when pendingAdmin is changed
24      */
25    event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);
26​
27    /**
28      * @notice Emitted when pendingAdmin is accepted, which means admin is updated
29      */
30    event NewAdmin(address oldAdmin, address newAdmin);
31​
32    constructor() public {
33        // Set admin to caller
34        admin = msg.sender;
35    }
36​
37    /** Admin Functions **/
38    function _setPendingImplementation(address newPendingImplementation) public returns (uint) {
39​
40        if (msg.sender != admin) {
41            return fail(Error.UNAUTHORIZED, FailureInfo.SET_PENDING_IMPLEMENTATION_OWNER_CHECK);
42        }
43​
44        address oldPendingImplementation = pendingComptrollerImplementation;
45​
46        pendingComptrollerImplementation = newPendingImplementation;
47​
48        emit NewPendingImplementation(oldPendingImplementation, pendingComptrollerImplementation);
49​
50        return uint(Error.NO_ERROR);
51    }
52​
53    /**
54    * @notice Accepts new implementation of comptroller. msg.sender must be pendingImplementation
55    * @dev Admin function for new implementation to accept it's role as implementation
56    * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
57    */
58    function _acceptImplementation() public returns (uint) {
59        // Check caller is pendingImplementation and pendingImplementation ≠ address(0)
60        if (msg.sender != pendingComptrollerImplementation || pendingComptrollerImplementation == address(0)) {
61            return fail(Error.UNAUTHORIZED, FailureInfo.ACCEPT_PENDING_IMPLEMENTATION_ADDRESS_CHECK);
62        }
63​

Solidity Contracts

JavaScript Tests