/**
 *Submitted for verification at testnet.bttcscan.com on 2024-03-20
*/

// Sources flattened with hardhat v2.22.1 https://hardhat.org

// File contracts/common/Proxy/IERCProxy.sol

pragma solidity 0.6.6;

interface IERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId);

    function implementation() external view returns (address codeAddr);
}


// File contracts/common/Proxy/Proxy.sol

pragma solidity 0.6.6;

abstract contract Proxy is IERCProxy {
    function delegatedFwd(address _dst, bytes memory _calldata) internal {
        // solium-disable-next-line security/no-inline-assembly
        assembly {
            let result := delegatecall(
                sub(gas(), 10000),
                _dst,
                add(_calldata, 0x20),
                mload(_calldata),
                0,
                0
            )
            let size := returndatasize()

            let ptr := mload(0x40)
            returndatacopy(ptr, 0, size)

            // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas.
            // if the call returned error data, forward it
            switch result
                case 0 {
                    revert(ptr, size)
                }
                default {
                    return(ptr, size)
                }
        }
    }

    function proxyType() external virtual override pure returns (uint256 proxyTypeId) {
        // Upgradeable proxy
        proxyTypeId = 2;
    }

    function implementation() external virtual override view returns (address);
}


// File contracts/common/Proxy/UpgradableProxy.sol

pragma solidity 0.6.6;

contract UpgradableProxy is Proxy {
    event ProxyUpdated(address indexed _new, address indexed _old);
    event ProxyOwnerUpdate(address _new, address _old);

    bytes32 constant IMPLEMENTATION_SLOT = keccak256("matic.network.proxy.implementation");
    bytes32 constant OWNER_SLOT = keccak256("matic.network.proxy.owner");

    constructor(address _proxyTo) public {
        setProxyOwner(msg.sender);
        setImplementation(_proxyTo);
    }

    fallback() external payable {
        delegatedFwd(loadImplementation(), msg.data);
    }

    receive() external payable {
        delegatedFwd(loadImplementation(), msg.data);
    }

    modifier onlyProxyOwner() {
        require(loadProxyOwner() == msg.sender, "NOT_OWNER");
        _;
    }

    function proxyOwner() external view returns(address) {
        return loadProxyOwner();
    }

    function loadProxyOwner() internal view returns(address) {
        address _owner;
        bytes32 position = OWNER_SLOT;
        assembly {
            _owner := sload(position)
        }
        return _owner;
    }

    function implementation() external override view returns (address) {
        return loadImplementation();
    }

    function loadImplementation() internal view returns(address) {
        address _impl;
        bytes32 position = IMPLEMENTATION_SLOT;
        assembly {
            _impl := sload(position)
        }
        return _impl;
    }

    function transferProxyOwnership(address newOwner) public onlyProxyOwner {
        require(newOwner != address(0), "ZERO_ADDRESS");
        emit ProxyOwnerUpdate(newOwner, loadProxyOwner());
        setProxyOwner(newOwner);
    }

    function setProxyOwner(address newOwner) private {
        bytes32 position = OWNER_SLOT;
        assembly {
            sstore(position, newOwner)
        }
    }

    function updateImplementation(address _newProxyTo) public onlyProxyOwner {
        require(_newProxyTo != address(0x0), "INVALID_PROXY_ADDRESS");
        require(isContract(_newProxyTo), "DESTINATION_ADDRESS_IS_NOT_A_CONTRACT");

        emit ProxyUpdated(_newProxyTo, loadImplementation());
        
        setImplementation(_newProxyTo);
    }

    function updateAndCall(address _newProxyTo, bytes memory data) payable public onlyProxyOwner {
        updateImplementation(_newProxyTo);

        (bool success, bytes memory returnData) = address(this).call{value: msg.value}(data);
        require(success, string(returnData));
    }

    function setImplementation(address _newProxyTo) private {
        bytes32 position = IMPLEMENTATION_SLOT;
        assembly {
            sstore(position, _newProxyTo)
        }
    }
    
    function isContract(address _target) internal view returns (bool) {
        if (_target == address(0)) {
            return false;
        }

        uint256 size;
        assembly {
            size := extcodesize(_target)
        }
        return size > 0;
    }
}


// File contracts/child/ChildToken/ChildERC20Exit/ChildERC20RelayProxy.sol

pragma solidity 0.6.6;

contract ChildERC20RelayProxy is UpgradableProxy {
    constructor(address _proxyTo)
        public
        UpgradableProxy(_proxyTo)
    {}
}

[{"inputs":[{"internalType":"address","name":"_proxyTo","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_new","type":"address"},{"indexed":false,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyOwnerUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_new","type":"address"},{"indexed":true,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyUpdated","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyType","outputs":[{"internalType":"uint256","name":"proxyTypeId","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"updateAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"}],"name":"updateImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

4789:147:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2254:44;2267:20;:18;:20::i;:::-;2289:8;;2254:44;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;2254:12:0;;-1:-1:-1;;;2254:44:0:i;:::-;4789:147;;2156:44;2169:20;:18;:20::i;2431:95::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;2431:95:0;;;:::i;:::-;;;;-1:-1:-1;;;;;2431:95:0;;;;;;;;;;;;;;3545:353;;5:9:-1;2:2;;;27:1;24;17:12;2:2;3545:353:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;3545:353:0;-1:-1:-1;;;;;3545:353:0;;:::i;1333:146::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;1333:146:0;;;:::i;:::-;;;;;;;;;;;;;;;;2766:113;;5:9:-1;2:2;;;27:1;24;17:12;2:2;2766:113:0;;;:::i;3906:289::-;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;3906:289:0;;;;;;;;;;;;;;;27:11:-1;11:28;;8:2;;;52:1;49;42:12;8:2;3906:289:0;;41:9:-1;34:4;18:14;14:25;11:40;8:2;;;64:1;61;54:12;8:2;3906:289:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;3906:289:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;3906:289:0;;-1:-1:-1;3906:289:0;;-1:-1:-1;;;;;3906:289:0:i;3129:232::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;3129:232:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;3129:232:0;-1:-1:-1;;;;;3129:232:0;;:::i;2887:234::-;2939:7;2959:13;2983:16;1859:47;;;;;;;;;;;;;;;;;;3065:15;;-1:-1:-1;;;;2887:234:0;:::o;429:896::-;796:1;776;747:9;741:16;717:4;706:9;702:20;679:4;654:5;647;643:17;612:200;838:16;887:4;881:11;929:4;926:1;921:3;906:28;1132:6;1156:66;;;;1283:4;1278:3;1271:17;1156:66;1198:4;1193:3;1186:17;2431:95;2475:7;2502:16;:14;:16::i;:::-;2495:23;;2431:95;:::o;3545:353::-;2379:10;2359:16;:14;:16::i;:::-;-1:-1:-1;;;;;2359:30:0;;2351:52;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;;;;-1:-1:-1;;;;;3637:27:0;::::1;3629:61;;;::::0;;-1:-1:-1;;;3629:61:0;;::::1;;::::0;::::1;::::0;::::1;::::0;;;;-1:-1:-1;;;3629:61:0;;;;;;;;;;;;;::::1;;3709:23;3720:11;3709:10;:23::i;:::-;3701:73;;;;-1:-1:-1::0;;;3701:73:0::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3818:20;:18;:20::i;:::-;-1:-1:-1::0;;;;;3792:47:0::1;3805:11;-1:-1:-1::0;;;;;3792:47:0::1;;;;;;;;;;;3860:30;3878:11;3860:17;:30::i;:::-;3545:353:::0;:::o;1333:146::-;1470:1;;1333:146::o;2766:113::-;2824:7;2851:20;:18;:20::i;3906:289::-;2379:10;2359:16;:14;:16::i;:::-;-1:-1:-1;;;;;2359:30:0;;2351:52;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;;;;4010:33:::1;4031:11;4010:20;:33::i;:::-;4057:12;4071:23;4106:4;-1:-1:-1::0;;;;;4098:18:0::1;4124:9;4135:4;4098:42;;;;;;;;;;;;;36:153:-1;66:2;61:3;58:11;36:153;;176:10:::0;;164:23;;-1:-1;;139:12;;;;98:2:::1;89:12:::0;;::::1;::::0;114::::1;36:153;;;274:1;267:3;263:2;259:12;254:3;250:22;246:30;315:4;311:9;305:3;299:10;295:26;356:4;350:3;344:10;340:21;389:7;380;377:20;372:3;365:33;3:399;;;4098:42:0;;;;;;;;;;;;;;;;;;;;;;;;;12:1:-1;19;14:27;;;;67:4;61:11;56:16;;134:4;130:9;123:4;105:16;101:27;97:43;94:1;90:51;84:4;77:65;157:16;154:1;147:27;211:16;208:1;201:4;198:1;194:12;179:49;5:228;;14:27;32:4;27:9;;5:228;;4056:84:0;;;;4159:7;4175:10;4151:36;;;;;-1:-1:-1::0;;;4151:36:0::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;23:1:-1;8:100;33:3;30:1;27:10;8:100;;;90:11:::0;;::::1;84:18:::0;71:11;;::::1;64:39:::0;52:2:::1;45:10;8:100;;;12:14;4151:36:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2414:1;;3906:289:::0;;:::o;3129:232::-;2379:10;2359:16;:14;:16::i;:::-;-1:-1:-1;;;;;2359:30:0;;2351:52;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;-1:-1:-1;;;2351:52:0;;;;;;;;;;;;;;;-1:-1:-1;;;;;3220:22:0;::::1;3212:47;;;::::0;;-1:-1:-1;;;3212:47:0;;::::1;;::::0;::::1;::::0;::::1;::::0;;;;-1:-1:-1;;;3212:47:0;;;;;;;;;;;;;::::1;;3275:44;3292:8;3302:16;:14;:16::i;:::-;3275:44;::::0;;-1:-1:-1;;;;;3275:44:0;;::::1;::::0;;;;;::::1;;::::0;::::1;::::0;;;;;;;;;;;::::1;3330:23;3344:8;3330:13;:23::i;2534:224::-:0;1943:38;;;-1:-1:-1;;;1943:38:0;;;;;;;;;;;;2701:15;2534:224;:::o;4402:274::-;4462:4;-1:-1:-1;;;;;4483:21:0;;4479:66;;-1:-1:-1;4528:5:0;4521:12;;4479:66;-1:-1:-1;4612:20:0;;4660:8;;4402:274;;;;:::o;4203:187::-;4270:16;1859:47;;;;;;;;;;;;;;;;;;4343:29;;;;-1:-1:-1;;4328:55:0:o;3369:168::-;1943:38;;;-1:-1:-1;;;1943:38:0;;;;;;;;;;;;3493:26;3478:52::o

ipfs://919b2f9b74c4606a22423375614bc707dd3dbf572a9c4e96ae0944316670998d