ConfluxContext

ConfluxContext 内置合约可用于在 Solidity 中获取当前网络信息，目前包含：epochNumber, posHeight, finalizedEpochNumber

pragma solidity >=0.4.15;

contract ConfluxContext {
    /*** Query Functions ***/
    /**
     * @dev get the current epoch number
     * @return the current epoch number
     */
    function epochNumber() public view returns (uint256) {}
    /**
     * @dev get the height of the referred PoS block in the last epoch
`    * @return the current PoS block height
     */
    function posHeight() public view returns (uint256) {}
    /**
     * @dev get the epoch number of the finalized pivot block.
     * @return the finalized epoch number
     */
    function finalizedEpochNumber() public view returns (uint256) {}
}