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// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.8.7;

import { INonTransparentProxy } from "./interfaces/INonTransparentProxy.sol";

contract NonTransparentProxy is INonTransparentProxy {

    bytes32 private constant ADMIN_SLOT          = bytes32(uint256(keccak256("eip1967.proxy.admin"))          - 1);
    bytes32 private constant IMPLEMENTATION_SLOT = bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1);

    constructor(address admin_, address implementation_) {
        _setAddress(ADMIN_SLOT,          admin_);
        _setAddress(IMPLEMENTATION_SLOT, implementation_);
    }

    /******************************************************************************************************************************/
    /*** Admin Functions                                                                                                        ***/
    /******************************************************************************************************************************/

    function setImplementation(address newImplementation_) override external {
        require(msg.sender == _admin(), "NTP:SI:NOT_ADMIN");
        _setAddress(IMPLEMENTATION_SLOT, newImplementation_);
    }

    /******************************************************************************************************************************/
    /*** View Functions                                                                                                         ***/
    /******************************************************************************************************************************/

    function _admin() internal view returns (address admin_) {
        admin_ = _getAddress(ADMIN_SLOT);
    }

    function _implementation() internal view returns (address implementation_) {
        implementation_ = _getAddress(IMPLEMENTATION_SLOT);
    }

    /******************************************************************************************************************************/
    /*** Utility Functions                                                                                                      ***/
    /******************************************************************************************************************************/

    function _setAddress(bytes32 slot_, address value_) private {
        assembly {
            sstore(slot_, value_)
        }
    }

    function _getAddress(bytes32 slot_) private view returns (address value_) {
        assembly {
            value_ := sload(slot_)
        }
    }

    /******************************************************************************************************************************/
    /*** Fallback Function                                                                                                      ***/
    /******************************************************************************************************************************/

    fallback() external {
        address implementation_ = _implementation();

        require(implementation_.code.length != 0, "NTP:F:NO_CODE_ON_IMPLEMENTATION");

        assembly {
            calldatacopy(0, 0, calldatasize())

            let result := delegatecall(gas(), implementation_, 0, calldatasize(), 0, 0)

            returndatacopy(0, 0, returndatasize())

            switch result
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.8.7;

interface INonTransparentProxy {

    /**
     *  @dev   Sets the implementation address.
     *  @param newImplementation_ The address to set the implementation to.
     */
    function setImplementation(address newImplementation_) external;

}

{
  "remappings": [
    "contract-test-utils/=modules/contract-test-utils/contracts/",
    "debt-locker-v4/=modules/debt-locker-v4/contracts/",
    "erc20-helper/=modules/withdrawal-manager/modules/erc20-helper/src/",
    "erc20/=modules/erc20/",
    "globals-v2/=modules/globals-v2/",
    "liquidations/=modules/liquidations/contracts/",
    "loan-v301/=modules/loan-v301/contracts/",
    "loan-v302/=modules/loan-v302/contracts/",
    "loan-v400/=modules/loan-v400/contracts/",
    "loan-v401/=modules/loan-v401/contracts/",
    "loan/=modules/debt-locker-v4/modules/loan/contracts/",
    "maple-proxy-factory/=modules/withdrawal-manager/modules/maple-proxy-factory/",
    "migration-helpers/=modules/migration-helpers/contracts/",
    "non-transparent-proxy/=modules/migration-helpers/modules/non-transparent-proxy/",
    "pool-v2/=modules/pool-v2/contracts/",
    "proxy-factory/=modules/withdrawal-manager/modules/maple-proxy-factory/modules/proxy-factory/",
    "withdrawal-manager/=modules/withdrawal-manager/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"admin_","type":"address"},{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[{"internalType":"address","name":"newImplementation_","type":"address"}],"name":"setImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000632a45c25d2139e6b2745ec3e7d309def99f2b9f0000000000000000000000000ad92cb3fc4cd6697e0f14fb75f3d7da3bb2e056

-----Decoded View---------------
Arg [0] : admin_ (address): 0x632a45c25d2139E6B2745eC3e7D309dEf99f2b9F
Arg [1] : implementation_ (address): 0x0ad92cb3Fc4cd6697E0f14Fb75F3d7da3Bb2e056

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000632a45c25d2139e6b2745ec3e7d309def99f2b9f
Arg [1] : 0000000000000000000000000ad92cb3fc4cd6697e0f14fb75f3d7da3bb2e056