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library AddressUpgradeable    - function isContract(address account)    - function sendValue(address payable re ...    - function functionCall(address target, ...    - function functionCall(    - function functionCallWithValue(addres ...    - function functionCallWithValue(    - function functionStaticCall(address t ...    - function functionStaticCall(    - function functionDelegateCall(address ...    - function functionDelegateCall(    - function verifyCallResultFromTarget(    - function verifyCallResult(    - function _revert(bytes memory returnd ...    - function _disableInitializers()    - function _getInitializedVersion()    - function _isInitializing() interface ITREXImplementationAuthorit ...    - function fetchVersion(Version calldat ...    - function setTREXFactory(address trexF ...    - function setIAFactory(address iaFacto ...    - function addTREXVersion(Version calld ...    - function addAndUseTREXVersion(Version ...    - function useTREXVersion(Version calld ...    - function changeImplementationAuthorit ...    - function getCurrentVersion()    - function getContracts(Version calldat ...    - function getTREXFactory()    - function getTokenImplementation()    - function getCTRImplementation()    - function getIRImplementation()    - function getIRSImplementation()    - function getTIRImplementation()    - function getMCImplementation()    - function isReferenceContract()    - function getReferenceContract() interface IProxy    - function setImplementationAuthority(a ...    - function getImplementationAuthority()    - function setImplementationAuthority(a ...    - function getImplementationAuthority()    - function _storeImplementationAuthorit ...  contract TokenProxy is AbstractPro ... *

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/**
 *Submitted for verification at polygonscan.com on 2024-02-23
*/

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.17;

// Sources flattened with hardhat v2.14.0 https://hardhat.org

// File @openzeppelin/contracts-upgradeable/utils/[email protected]

// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// File @openzeppelin/contracts-upgradeable/proxy/utils/[email protected]

// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// File contracts/proxy/authority/ITREXImplementationAuthority.sol

//
//                                             :+#####%%%%%%%%%%%%%%+
//                                         .-*@@@%+.:+%@@@@@%%#***%@@%=
//                                     :=*%@@@#=.      :#@@%       *@@@%=
//                       .-+*%@%*-.:+%@@@@@@+.     -*+:  .=#.       :%@@@%-
//                   :=*@@@@%%@@@@@@@@@%@@@-   .=#@@@%@%=             =@@@@#.
//             -=+#%@@%#*=:.  :%@@@@%.   -*@@#*@@@@@@@#=:-              *@@@@+
//            =@@%=:.     :=:   *@@@@@%#-   =%*%@@@@#+-.        =+       :%@@@%-
//           -@@%.     .+@@@     =+=-.         @@#-           +@@@%-       =@@@@%:
//          :@@@.    .+@@#%:                   :    .=*=-::.-%@@@+*@@=       +@@@@#.
//          %@@:    +@%%*                         =%@@@@@@@@@@@#.  .*@%-       +@@@@*.
//         #@@=                                .+@@@@%:=*@@@@@-      :%@%:      .*@@@@+
//        *@@*                                +@@@#-@@%-:%@@*          +@@#.      :%@@@@-
//       -@@%           .:-=++*##%%%@@@@@@@@@@@@*. :@+.@@@%:            .#@@+       =@@@@#:
//      .@@@*-+*#%%%@@@@@@@@@@@@@@@@%%#**@@%@@@.   *@=*@@#                :#@%=      .#@@@@#-
//      -%@@@@@@@@@@@@@@@*+==-:-@@@=    *@# .#@*-=*@@@@%=                 -%@@@*       =@@@@@%-
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//            *@@@*  +@* *@@##@@-  #@*@@+    -@@=          .         :+@@@#:           .-+@@@%+-
//             +@@@%*@@:..=@@@@*   .@@@*   .#@#.       .=+-       .=%@@@*.         :+#@@@@*=:
//              =@@@@%@@@@@@@@@@@@@@@@@@@@@@%-      :+#*.       :*@@@%=.       .=#@@@@%+:
//               .%@@=                 .....    .=#@@+.       .#@@@*:       -*%@@@@%+.
//                 +@@#+===---:::...         .=%@@*-         +@@@+.      -*@@@@@%+.
//                  -@@@@@@@@@@@@@@@@@@@@@@%@@@@=          -@@@+      -#@@@@@#=.
//                    ..:::---===+++***###%%%@@@#-       .#@@+     -*@@@@@#=.
//                                           @@@@@@+.   +@@*.   .+@@@@@%=.
//                                          -@@@@@=   =@@%:   -#@@@@%+.
//                                          +@@@@@. =@@@=  .+@@@@@*:
//                                          #@@@@#:%@@#. :*@@@@#-
//                                          @@@@@%@@@= :#@@@@+.
//                                         :@@@@@@@#.:#@@@%-
//                                         +@@@@@@-.*@@@*:
//                                         #@@@@#.=@@@+.
//                                         @@@@+-%@%=
//                                        :@@@#%@%=
//                                        +@@@@%-
//                                        :#%%=
//
/**
 *     NOTICE
 *
 *     The T-REX software is licensed under a proprietary license or the GPL v.3.
 *     If you choose to receive it under the GPL v.3 license, the following applies:
 *     T-REX is a suite of smart contracts implementing the ERC-3643 standard and
 *     developed by Tokeny to manage and transfer financial assets on EVM blockchains
 *
 *     Copyright (C) 2023, Tokeny sàrl.
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

interface ITREXImplementationAuthority {

    /// types

    struct TREXContracts {
        // address of token implementation contract
        address tokenImplementation;
        // address of ClaimTopicsRegistry implementation contract
        address ctrImplementation;
        // address of IdentityRegistry implementation contract
        address irImplementation;
        // address of IdentityRegistryStorage implementation contract
        address irsImplementation;
        // address of TrustedIssuersRegistry implementation contract
        address tirImplementation;
        // address of ModularCompliance implementation contract
        address mcImplementation;
    }

    struct Version {
        // major version
        uint8 major;
        // minor version
        uint8 minor;
        // patch version
        uint8 patch;
    }

    /// events

    /// event emitted when a new TREX version is added to the contract memory
    event TREXVersionAdded(Version indexed version, TREXContracts indexed trex);

    /// event emitted when a new TREX version is fetched from reference contract by auxiliary contract
    event TREXVersionFetched(Version indexed version, TREXContracts indexed trex);

    /// event emitted when the current version is updated
    event VersionUpdated(Version indexed version);

    /// event emitted by the constructor when the IA is deployed
    event ImplementationAuthoritySet(bool referenceStatus, address trexFactory);

    /// event emitted when the TREX factory address is set
    event TREXFactorySet(address indexed trexFactory);

    /// event emitted when the IA factory address is set
    event IAFactorySet(address indexed iaFactory);

    /// event emitted when a token issuer decides to change current IA for a new one
    event ImplementationAuthorityChanged(address indexed _token, address indexed _newImplementationAuthority);

    /// functions

    /**
     *  @dev allows to fetch a TREX version available on the reference contract
     *  can be called only from auxiliary contracts, not on reference (main) contract
     *  throws if the version was already fetched
     *  adds the new version on the local storage
     *  allowing the update of contracts through the `useTREXVersion` afterwards
     */
    function fetchVersion(Version calldata _version) external;

    /**
     *  @dev setter for _trexFactory variable
     *  _trexFactory is set at deployment for auxiliary contracts
     *  for main contract it must be set post-deployment as main IA is
     *  deployed before the TREXFactory.
     *  @param trexFactory the address of TREXFactory contract
     *  emits a TREXFactorySet event
     *  only Owner can call
     *  can be called only on main contract, auxiliary contracts cannot call
     */
    function setTREXFactory(address trexFactory) external;

    /**
     *  @dev setter for _iaFactory variable
     *  _iaFactory is set at zero address for auxiliary contracts
     *  for main contract it can be set post-deployment or at deployment
     *  in the constructor
     *  @param iaFactory the address of IAFactory contract
     *  emits a IAFactorySet event
     *  only Owner can call
     *  can be called only on main contract, auxiliary contracts cannot call
     */
    function setIAFactory(address iaFactory) external;

    /**
     *  @dev adds a new Version of TREXContracts to the mapping
     *  only callable on the reference contract
     *  only Owner can call this function
     *  @param _version the new version to add to the mapping
     *  @param _trex the list of contracts corresponding to the new version
     *  _trex cannot contain zero addresses
     *  emits a `TREXVersionAdded` event
     */
    function addTREXVersion(Version calldata _version, TREXContracts calldata _trex) external;

    /**
     *  @dev updates the current version in use by the proxies
     *  variation of the `useTREXVersion` allowing to use a new version
     *  this function calls in a single transaction the `addTREXVersion`
     *  and the `useTREXVersion` using an existing version
     *  @param _version the version to use
     *  @param _trex the set of contracts corresponding to the version
     *  only Owner can call (check performed in addTREXVersion)
     *  only reference contract can call (check performed in addTREXVersion)
     *  emits a `TREXVersionAdded`event
     *  emits a `VersionUpdated` event
     */
    function addAndUseTREXVersion(Version calldata _version, TREXContracts calldata _trex) external;

    /**
     *  @dev updates the current version in use by the proxies
     *  @param _version the version to use
     *  reverts if _version is already used or if version does not exist
     *  only Owner can call
     *  emits a `VersionUpdated` event
     */
    function useTREXVersion(Version calldata _version) external;

    /**
     *  @dev change the implementationAuthority address of all proxy contracts linked to a given token
     *  only the owner of all proxy contracts can call this function
     *  @param _token the address of the token proxy
     *  @param _newImplementationAuthority the address of the new IA contract
     *  caller has to be owner of all contracts linked to the token and impacted by the change
     *  Set _newImplementationAuthority on zero address to deploy a new IA contract
     *  New IA contracts can only be deployed ONCE per token and only if current IA is the main IA
     *  if _newImplementationAuthority is not a new contract it must be using the same version
     *  as the current IA contract.
     *  calls `setImplementationAuthority` on all proxies linked to the token
     *  emits a `ImplementationAuthorityChanged` event
     */
    function changeImplementationAuthority(address _token, address _newImplementationAuthority) external;

    /**
     *  @dev getter function returning the current version of contracts used by proxies
     */
    function getCurrentVersion() external view returns (Version memory);

    /**
     *  @dev getter function returning the contracts corresponding to a version
     *  @param _version the version that contracts are requested for
     */
    function getContracts(Version calldata _version) external view returns (TREXContracts memory);

    /**
     *  @dev getter function returning address of reference TREX factory
     */
    function getTREXFactory() external view returns (address);

    /**
     *  @dev getter function returning address of token contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getTokenImplementation() external view returns (address);

    /**
     *  @dev getter function returning address of ClaimTopicsRegistry contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getCTRImplementation() external view returns (address);

    /**
     *  @dev getter function returning address of IdentityRegistry contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getIRImplementation() external view returns (address);

    /**
     *  @dev getter function returning address of IdentityRegistryStorage contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getIRSImplementation() external view returns (address);

    /**
     *  @dev getter function returning address of TrustedIssuersRegistry contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getTIRImplementation() external view returns (address);

    /**
     *  @dev getter function returning address of ModularCompliance contract implementation
     *  currently used by the proxies using this TREXImplementationAuthority
     */
    function getMCImplementation() external view returns (address);

    /**
     *  @dev returns true if the contract is the main contract
     *  returns false if the contract is an auxiliary contract
     */
    function isReferenceContract() external view returns (bool);

    /**
     *  @dev getter for reference contract address
     */
    function getReferenceContract() external view returns (address);
}

// File contracts/proxy/interface/IProxy.sol

//
//                                             :+#####%%%%%%%%%%%%%%+
//                                         .-*@@@%+.:+%@@@@@%%#***%@@%=
//                                     :=*%@@@#=.      :#@@%       *@@@%=
//                       .-+*%@%*-.:+%@@@@@@+.     -*+:  .=#.       :%@@@%-
//                   :=*@@@@%%@@@@@@@@@%@@@-   .=#@@@%@%=             =@@@@#.
//             -=+#%@@%#*=:.  :%@@@@%.   -*@@#*@@@@@@@#=:-              *@@@@+
//            =@@%=:.     :=:   *@@@@@%#-   =%*%@@@@#+-.        =+       :%@@@%-
//           -@@%.     .+@@@     =+=-.         @@#-           +@@@%-       =@@@@%:
//          :@@@.    .+@@#%:                   :    .=*=-::.-%@@@+*@@=       +@@@@#.
//          %@@:    +@%%*                         =%@@@@@@@@@@@#.  .*@%-       +@@@@*.
//         #@@=                                .+@@@@%:=*@@@@@-      :%@%:      .*@@@@+
//        *@@*                                +@@@#-@@%-:%@@*          +@@#.      :%@@@@-
//       -@@%           .:-=++*##%%%@@@@@@@@@@@@*. :@+.@@@%:            .#@@+       =@@@@#:
//      .@@@*-+*#%%%@@@@@@@@@@@@@@@@%%#**@@%@@@.   *@=*@@#                :#@%=      .#@@@@#-
//      -%@@@@@@@@@@@@@@@*+==-:-@@@=    *@# .#@*-=*@@@@%=                 -%@@@*       =@@@@@%-
//         -+%@@@#.   %@%%=   -@@:+@: -@@*    *@@*-::                   -%@@%=.         .*@@@@@#
//            *@@@*  +@* *@@##@@-  #@*@@+    -@@=          .         :+@@@#:           .-+@@@%+-
//             +@@@%*@@:..=@@@@*   .@@@*   .#@#.       .=+-       .=%@@@*.         :+#@@@@*=:
//              =@@@@%@@@@@@@@@@@@@@@@@@@@@@%-      :+#*.       :*@@@%=.       .=#@@@@%+:
//               .%@@=                 .....    .=#@@+.       .#@@@*:       -*%@@@@%+.
//                 +@@#+===---:::...         .=%@@*-         +@@@+.      -*@@@@@%+.
//                  -@@@@@@@@@@@@@@@@@@@@@@%@@@@=          -@@@+      -#@@@@@#=.
//                    ..:::---===+++***###%%%@@@#-       .#@@+     -*@@@@@#=.
//                                           @@@@@@+.   +@@*.   .+@@@@@%=.
//                                          -@@@@@=   =@@%:   -#@@@@%+.
//                                          +@@@@@. =@@@=  .+@@@@@*:
//                                          #@@@@#:%@@#. :*@@@@#-
//                                          @@@@@%@@@= :#@@@@+.
//                                         :@@@@@@@#.:#@@@%-
//                                         +@@@@@@-.*@@@*:
//                                         #@@@@#.=@@@+.
//                                         @@@@+-%@%=
//                                        :@@@#%@%=
//                                        +@@@@%-
//                                        :#%%=
//
/**
 *     NOTICE
 *
 *     The T-REX software is licensed under a proprietary license or the GPL v.3.
 *     If you choose to receive it under the GPL v.3 license, the following applies:
 *     T-REX is a suite of smart contracts implementing the ERC-3643 standard and
 *     developed by Tokeny to manage and transfer financial assets on EVM blockchains
 *
 *     Copyright (C) 2023, Tokeny sàrl.
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

interface IProxy {

    /// events

    event ImplementationAuthoritySet(address indexed _implementationAuthority);

    /// functions

    function setImplementationAuthority(address _newImplementationAuthority) external;

    function getImplementationAuthority() external view returns(address);
}

// File contracts/proxy/AbstractProxy.sol

//
//                                             :+#####%%%%%%%%%%%%%%+
//                                         .-*@@@%+.:+%@@@@@%%#***%@@%=
//                                     :=*%@@@#=.      :#@@%       *@@@%=
//                       .-+*%@%*-.:+%@@@@@@+.     -*+:  .=#.       :%@@@%-
//                   :=*@@@@%%@@@@@@@@@%@@@-   .=#@@@%@%=             =@@@@#.
//             -=+#%@@%#*=:.  :%@@@@%.   -*@@#*@@@@@@@#=:-              *@@@@+
//            =@@%=:.     :=:   *@@@@@%#-   =%*%@@@@#+-.        =+       :%@@@%-
//           -@@%.     .+@@@     =+=-.         @@#-           +@@@%-       =@@@@%:
//          :@@@.    .+@@#%:                   :    .=*=-::.-%@@@+*@@=       +@@@@#.
//          %@@:    +@%%*                         =%@@@@@@@@@@@#.  .*@%-       +@@@@*.
//         #@@=                                .+@@@@%:=*@@@@@-      :%@%:      .*@@@@+
//        *@@*                                +@@@#-@@%-:%@@*          +@@#.      :%@@@@-
//       -@@%           .:-=++*##%%%@@@@@@@@@@@@*. :@+.@@@%:            .#@@+       =@@@@#:
//      .@@@*-+*#%%%@@@@@@@@@@@@@@@@%%#**@@%@@@.   *@=*@@#                :#@%=      .#@@@@#-
//      -%@@@@@@@@@@@@@@@*+==-:-@@@=    *@# .#@*-=*@@@@%=                 -%@@@*       =@@@@@%-
//         -+%@@@#.   %@%%=   -@@:+@: -@@*    *@@*-::                   -%@@%=.         .*@@@@@#
//            *@@@*  +@* *@@##@@-  #@*@@+    -@@=          .         :+@@@#:           .-+@@@%+-
//             +@@@%*@@:..=@@@@*   .@@@*   .#@#.       .=+-       .=%@@@*.         :+#@@@@*=:
//              =@@@@%@@@@@@@@@@@@@@@@@@@@@@%-      :+#*.       :*@@@%=.       .=#@@@@%+:
//               .%@@=                 .....    .=#@@+.       .#@@@*:       -*%@@@@%+.
//                 +@@#+===---:::...         .=%@@*-         +@@@+.      -*@@@@@%+.
//                  -@@@@@@@@@@@@@@@@@@@@@@%@@@@=          -@@@+      -#@@@@@#=.
//                    ..:::---===+++***###%%%@@@#-       .#@@+     -*@@@@@#=.
//                                           @@@@@@+.   +@@*.   .+@@@@@%=.
//                                          -@@@@@=   =@@%:   -#@@@@%+.
//                                          +@@@@@. =@@@=  .+@@@@@*:
//                                          #@@@@#:%@@#. :*@@@@#-
//                                          @@@@@%@@@= :#@@@@+.
//                                         :@@@@@@@#.:#@@@%-
//                                         +@@@@@@-.*@@@*:
//                                         #@@@@#.=@@@+.
//                                         @@@@+-%@%=
//                                        :@@@#%@%=
//                                        +@@@@%-
//                                        :#%%=
//
/**
 *     NOTICE
 *
 *     The T-REX software is licensed under a proprietary license or the GPL v.3.
 *     If you choose to receive it under the GPL v.3 license, the following applies:
 *     T-REX is a suite of smart contracts implementing the ERC-3643 standard and
 *     developed by Tokeny to manage and transfer financial assets on EVM blockchains
 *
 *     Copyright (C) 2023, Tokeny sàrl.
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

abstract contract AbstractProxy is IProxy, Initializable {

    /**
     *  @dev See {IProxy-setImplementationAuthority}.
     */
    function setImplementationAuthority(address _newImplementationAuthority) external override {
        require(msg.sender == getImplementationAuthority(), "only current implementationAuthority can call");
        require(_newImplementationAuthority != address(0), "invalid argument - zero address");
        require(
            (ITREXImplementationAuthority(_newImplementationAuthority)).getTokenImplementation() != address(0)
            && (ITREXImplementationAuthority(_newImplementationAuthority)).getCTRImplementation() != address(0)
            && (ITREXImplementationAuthority(_newImplementationAuthority)).getIRImplementation() != address(0)
            && (ITREXImplementationAuthority(_newImplementationAuthority)).getIRSImplementation() != address(0)
            && (ITREXImplementationAuthority(_newImplementationAuthority)).getMCImplementation() != address(0)
            && (ITREXImplementationAuthority(_newImplementationAuthority)).getTIRImplementation() != address(0)
        , "invalid Implementation Authority");
        _storeImplementationAuthority(_newImplementationAuthority);
        emit ImplementationAuthoritySet(_newImplementationAuthority);
    }

    /**
     *  @dev See {IProxy-getImplementationAuthority}.
     */
    function getImplementationAuthority() public override view returns(address) {
        address implemAuth;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            implemAuth := sload(0x821f3e4d3d679f19eacc940c87acf846ea6eae24a63058ea750304437a62aafc)
        }
        return implemAuth;
    }

    /**
     *  @dev store the implementationAuthority contract address using the ERC-3643 implementation slot in storage
     *  the slot storage is the result of `keccak256("ERC-3643.proxy.beacon")`
     */
    function _storeImplementationAuthority(address implementationAuthority) internal {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(0x821f3e4d3d679f19eacc940c87acf846ea6eae24a63058ea750304437a62aafc, implementationAuthority)
        }
    }

}

// File contracts/proxy/TokenProxy.sol

//
//                                             :+#####%%%%%%%%%%%%%%+
//                                         .-*@@@%+.:+%@@@@@%%#***%@@%=
//                                     :=*%@@@#=.      :#@@%       *@@@%=
//                       .-+*%@%*-.:+%@@@@@@+.     -*+:  .=#.       :%@@@%-
//                   :=*@@@@%%@@@@@@@@@%@@@-   .=#@@@%@%=             =@@@@#.
//             -=+#%@@%#*=:.  :%@@@@%.   -*@@#*@@@@@@@#=:-              *@@@@+
//            =@@%=:.     :=:   *@@@@@%#-   =%*%@@@@#+-.        =+       :%@@@%-
//           -@@%.     .+@@@     =+=-.         @@#-           +@@@%-       =@@@@%:
//          :@@@.    .+@@#%:                   :    .=*=-::.-%@@@+*@@=       +@@@@#.
//          %@@:    +@%%*                         =%@@@@@@@@@@@#.  .*@%-       +@@@@*.
//         #@@=                                .+@@@@%:=*@@@@@-      :%@%:      .*@@@@+
//        *@@*                                +@@@#-@@%-:%@@*          +@@#.      :%@@@@-
//       -@@%           .:-=++*##%%%@@@@@@@@@@@@*. :@+.@@@%:            .#@@+       =@@@@#:
//      .@@@*-+*#%%%@@@@@@@@@@@@@@@@%%#**@@%@@@.   *@=*@@#                :#@%=      .#@@@@#-
//      -%@@@@@@@@@@@@@@@*+==-:-@@@=    *@# .#@*-=*@@@@%=                 -%@@@*       =@@@@@%-
//         -+%@@@#.   %@%%=   -@@:+@: -@@*    *@@*-::                   -%@@%=.         .*@@@@@#
//            *@@@*  +@* *@@##@@-  #@*@@+    -@@=          .         :+@@@#:           .-+@@@%+-
//             +@@@%*@@:..=@@@@*   .@@@*   .#@#.       .=+-       .=%@@@*.         :+#@@@@*=:
//              =@@@@%@@@@@@@@@@@@@@@@@@@@@@%-      :+#*.       :*@@@%=.       .=#@@@@%+:
//               .%@@=                 .....    .=#@@+.       .#@@@*:       -*%@@@@%+.
//                 +@@#+===---:::...         .=%@@*-         +@@@+.      -*@@@@@%+.
//                  -@@@@@@@@@@@@@@@@@@@@@@%@@@@=          -@@@+      -#@@@@@#=.
//                    ..:::---===+++***###%%%@@@#-       .#@@+     -*@@@@@#=.
//                                           @@@@@@+.   +@@*.   .+@@@@@%=.
//                                          -@@@@@=   =@@%:   -#@@@@%+.
//                                          +@@@@@. =@@@=  .+@@@@@*:
//                                          #@@@@#:%@@#. :*@@@@#-
//                                          @@@@@%@@@= :#@@@@+.
//                                         :@@@@@@@#.:#@@@%-
//                                         +@@@@@@-.*@@@*:
//                                         #@@@@#.=@@@+.
//                                         @@@@+-%@%=
//                                        :@@@#%@%=
//                                        +@@@@%-
//                                        :#%%=
//
/**
 *     NOTICE
 *
 *     The T-REX software is licensed under a proprietary license or the GPL v.3.
 *     If you choose to receive it under the GPL v.3 license, the following applies:
 *     T-REX is a suite of smart contracts implementing the ERC-3643 standard and
 *     developed by Tokeny to manage and transfer financial assets on EVM blockchains
 *
 *     Copyright (C) 2023, Tokeny sàrl.
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

contract TokenProxy is AbstractProxy {

    constructor(
        address implementationAuthority,
        address _identityRegistry,
        address _compliance,
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        // _onchainID can be 0 address if the token has no ONCHAINID, ONCHAINID can be set later by the token Owner
        address _onchainID
    ) {
        require(
            implementationAuthority != address(0)
            && _identityRegistry != address(0)
            && _compliance != address(0)
        , "invalid argument - zero address");
        require(
            keccak256(abi.encode(_name)) != keccak256(abi.encode(""))
            && keccak256(abi.encode(_symbol)) != keccak256(abi.encode(""))
        , "invalid argument - empty string");
        require(0 <= _decimals && _decimals <= 18, "decimals between 0 and 18");
        _storeImplementationAuthority(implementationAuthority);
        emit ImplementationAuthoritySet(implementationAuthority);

        address logic = (ITREXImplementationAuthority(getImplementationAuthority())).getTokenImplementation();

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = logic.delegatecall(
                abi.encodeWithSignature(
                    "init(address,address,string,string,uint8,address)",
                    _identityRegistry,
                    _compliance,
                    _name,
                    _symbol,
                    _decimals,
                    _onchainID
                )
            );
        require(success, "Initialization failed.");
    }

    // solhint-disable-next-line no-complex-fallback
    fallback() external payable {
        address logic = (ITREXImplementationAuthority(getImplementationAuthority())).getTokenImplementation();

        // solhint-disable-next-line no-inline-assembly
        assembly {
            calldatacopy(0x0, 0x0, calldatasize())
            let success := delegatecall(sub(gas(), 10000), logic, 0x0, calldatasize(), 0, 0)
            let retSz := returndatasize()
            returndatacopy(0, 0, retSz)
            switch success
                case 0 {
                    revert(0, retSz)
                }
                default {
                    return(0, retSz)
                }
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"implementationAuthority","type":"address"},{"internalType":"address","name":"_identityRegistry","type":"address"},{"internalType":"address","name":"_compliance","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"address","name":"_onchainID","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_implementationAuthority","type":"address"}],"name":"ImplementationAuthoritySet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"getImplementationAuthority","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newImplementationAuthority","type":"address"}],"name":"setImplementationAuthority","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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