{
"address": "0x6aeBE10a4607B1002ea56D825Ee18Ce751fD9592",
"abi": [
{
"inputs": [
{
"internalType": "contract ControlledTokenProxyFactory",
"name": "_controlledTokenProxyFactory",
"type": "address"
},
{
"internalType": "contract TicketProxyFactory",
"name": "_ticketProxyFactory",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
}
],
"name": "CreatedControlledToken",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
}
],
"name": "CreatedTicket",
"type": "event"
},
{
"inputs": [],
"name": "controlledTokenProxyFactory",
"outputs": [
{
"internalType": "contract ControlledTokenProxyFactory",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "string",
"name": "name",
"type": "string"
},
{
"internalType": "string",
"name": "symbol",
"type": "string"
},
{
"internalType": "uint8",
"name": "decimals",
"type": "uint8"
},
{
"internalType": "contract TokenControllerInterface",
"name": "controller",
"type": "address"
}
],
"internalType": "struct ControlledTokenBuilder.ControlledTokenConfig",
"name": "config",
"type": "tuple"
}
],
"name": "createControlledToken",
"outputs": [
{
"internalType": "contract ControlledToken",
"name": "",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "string",
"name": "name",
"type": "string"
},
{
"internalType": "string",
"name": "symbol",
"type": "string"
},
{
"internalType": "uint8",
"name": "decimals",
"type": "uint8"
},
{
"internalType": "contract TokenControllerInterface",
"name": "controller",
"type": "address"
}
],
"internalType": "struct ControlledTokenBuilder.ControlledTokenConfig",
"name": "config",
"type": "tuple"
}
],
"name": "createTicket",
"outputs": [
{
"internalType": "contract Ticket",
"name": "",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "ticketProxyFactory",
"outputs": [
{
"internalType": "contract TicketProxyFactory",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
}
],
"transactionHash": "0xe73d68aee4a0190e4f72581b152aa1e586f266c67ff717dcd86d98b2e056fc75",
"receipt": {
"to": null,
"from": "0xE0F4217390221aF47855E094F6e112D43C8698fE",
"contractAddress": "0x6aeBE10a4607B1002ea56D825Ee18Ce751fD9592",
"transactionIndex": 2,
"gasUsed": "388416",
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"blockHash": "0x4ccfb1da6bda662d8cb9855b9873f97803b6f0b7aa136be48ff14daf8c4d0709",
"transactionHash": "0xe73d68aee4a0190e4f72581b152aa1e586f266c67ff717dcd86d98b2e056fc75",
"logs": [],
"blockNumber": 10652735,
"cumulativeGasUsed": "540734",
"status": 1,
"byzantium": true
},
"args": [
"0x317625b28Acb3C0540DB00b179D84D9b804277f7",
"0x72Edd573E230C7d68274Bf718A4C6aD82b5d5f90"
],
"solcInputHash": "07113fc1ebb7a05ae49ea4c62cff423c",
"metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract ControlledTokenProxyFactory\",\"name\":\"_controlledTokenProxyFactory\",\"type\":\"address\"},{\"internalType\":\"contract TicketProxyFactory\",\"name\":\"_ticketProxyFactory\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"}],\"name\":\"CreatedControlledToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"}],\"name\":\"CreatedTicket\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"controlledTokenProxyFactory\",\"outputs\":[{\"internalType\":\"contract ControlledTokenProxyFactory\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"components\":[{\"internalType\":\"string\",\"name\":\"name\",\"type\":\"string\"},{\"internalType\":\"string\",\"name\":\"symbol\",\"type\":\"string\"},{\"internalType\":\"uint8\",\"name\":\"decimals\",\"type\":\"uint8\"},{\"internalType\":\"contract TokenControllerInterface\",\"name\":\"controller\",\"type\":\"address\"}],\"internalType\":\"struct ControlledTokenBuilder.ControlledTokenConfig\",\"name\":\"config\",\"type\":\"tuple\"}],\"name\":\"createControlledToken\",\"outputs\":[{\"internalType\":\"contract ControlledToken\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"components\":[{\"internalType\":\"string\",\"name\":\"name\",\"type\":\"string\"},{\"internalType\":\"string\",\"name\":\"symbol\",\"type\":\"string\"},{\"internalType\":\"uint8\",\"name\":\"decimals\",\"type\":\"uint8\"},{\"internalType\":\"contract TokenControllerInterface\",\"name\":\"controller\",\"type\":\"address\"}],\"internalType\":\"struct ControlledTokenBuilder.ControlledTokenConfig\",\"name\":\"config\",\"type\":\"tuple\"}],\"name\":\"createTicket\",\"outputs\":[{\"internalType\":\"contract Ticket\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"ticketProxyFactory\",\"outputs\":[{\"internalType\":\"contract TicketProxyFactory\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/builders/ControlledTokenBuilder.sol\":\"ControlledTokenBuilder\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts-upgradeable/cryptography/ECDSAUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\\n *\\n * These functions can be used to verify that a message was signed by the holder\\n * of the private keys of a given address.\\n */\\nlibrary ECDSAUpgradeable {\\n /**\\n * @dev Returns the address that signed a hashed message (`hash`) with\\n * `signature`. This address can then be used for verification purposes.\\n *\\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\\n * this function rejects them by requiring the `s` value to be in the lower\\n * half order, and the `v` value to be either 27 or 28.\\n *\\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\\n * verification to be secure: it is possible to craft signatures that\\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\\n * this is by receiving a hash of the original message (which may otherwise\\n * be too long), and then calling {toEthSignedMessageHash} on it.\\n */\\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\\n // Check the signature length\\n if (signature.length != 65) {\\n revert(\\\"ECDSA: invalid signature length\\\");\\n }\\n\\n // Divide the signature in r, s and v variables\\n bytes32 r;\\n bytes32 s;\\n uint8 v;\\n\\n // ecrecover takes the signature parameters, and the only way to get them\\n // currently is to use assembly.\\n // solhint-disable-next-line no-inline-assembly\\n assembly {\\n r := mload(add(signature, 0x20))\\n s := mload(add(signature, 0x40))\\n v := byte(0, mload(add(signature, 0x60)))\\n }\\n\\n return recover(hash, v, r, s);\\n }\\n\\n /**\\n * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,\\n * `r` and `s` signature fields separately.\\n */\\n function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {\\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\\n // the valid range for s in (281): 0 < s < secp256k1n \\u00f7 2 + 1, and for v in (282): v \\u2208 {27, 28}. Most\\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\\n //\\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\\n // these malleable signatures as well.\\n require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, \\\"ECDSA: invalid signature 's' value\\\");\\n require(v == 27 || v == 28, \\\"ECDSA: invalid signature 'v' value\\\");\\n\\n // If the signature is valid (and not malleable), return the signer address\\n address signer = ecrecover(hash, v, r, s);\\n require(signer != address(0), \\\"ECDSA: invalid signature\\\");\\n\\n return signer;\\n }\\n\\n /**\\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\\n * replicates the behavior of the\\n * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]\\n * JSON-RPC method.\\n *\\n * See {recover}.\\n */\\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\\n // 32 is the length in bytes of hash,\\n // enforced by the type signature above\\n return keccak256(abi.encodePacked(\\\"\\\\x19Ethereum Signed Message:\\\\n32\\\", hash));\\n }\\n}\\n\",\"keccak256\":\"0xe348c45df01e0705c50ede5063d77111a996722ffb83f0a22979338a32b06887\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/drafts/EIP712Upgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\nimport \\\"../proxy/Initializable.sol\\\";\\n\\n/**\\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\\n *\\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\\n *\\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\\n * ({_hashTypedDataV4}).\\n *\\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\\n * the chain id to protect against replay attacks on an eventual fork of the chain.\\n *\\n * NOTE: This contract implements the version of the encoding known as \\\"v4\\\", as implemented by the JSON RPC method\\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\\n *\\n * _Available since v3.4._\\n */\\nabstract contract EIP712Upgradeable is Initializable {\\n /* solhint-disable var-name-mixedcase */\\n bytes32 private _HASHED_NAME;\\n bytes32 private _HASHED_VERSION;\\n bytes32 private constant _TYPE_HASH = keccak256(\\\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\\\");\\n /* solhint-enable var-name-mixedcase */\\n\\n /**\\n * @dev Initializes the domain separator and parameter caches.\\n *\\n * The meaning of `name` and `version` is specified in\\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\\n *\\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\\n * - `version`: the current major version of the signing domain.\\n *\\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\\n * contract upgrade].\\n */\\n function __EIP712_init(string memory name, string memory version) internal initializer {\\n __EIP712_init_unchained(name, version);\\n }\\n\\n function __EIP712_init_unchained(string memory name, string memory version) internal initializer {\\n bytes32 hashedName = keccak256(bytes(name));\\n bytes32 hashedVersion = keccak256(bytes(version));\\n _HASHED_NAME = hashedName;\\n _HASHED_VERSION = hashedVersion;\\n }\\n\\n /**\\n * @dev Returns the domain separator for the current chain.\\n */\\n function _domainSeparatorV4() internal view returns (bytes32) {\\n return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());\\n }\\n\\n function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {\\n return keccak256(\\n abi.encode(\\n typeHash,\\n name,\\n version,\\n _getChainId(),\\n address(this)\\n )\\n );\\n }\\n\\n /**\\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\\n * function returns the hash of the fully encoded EIP712 message for this domain.\\n *\\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\\n *\\n * ```solidity\\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\\n * keccak256(\\\"Mail(address to,string contents)\\\"),\\n * mailTo,\\n * keccak256(bytes(mailContents))\\n * )));\\n * address signer = ECDSA.recover(digest, signature);\\n * ```\\n */\\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\\n return keccak256(abi.encodePacked(\\\"\\\\x19\\\\x01\\\", _domainSeparatorV4(), structHash));\\n }\\n\\n function _getChainId() private view returns (uint256 chainId) {\\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\\n // solhint-disable-next-line no-inline-assembly\\n assembly {\\n chainId := chainid()\\n }\\n }\\n\\n /**\\n * @dev The hash of the name parameter for the EIP712 domain.\\n *\\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\\n * are a concern.\\n */\\n function _EIP712NameHash() internal virtual view returns (bytes32) {\\n return _HASHED_NAME;\\n }\\n\\n /**\\n * @dev The hash of the version parameter for the EIP712 domain.\\n *\\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\\n * are a concern.\\n */\\n function _EIP712VersionHash() internal virtual view returns (bytes32) {\\n return _HASHED_VERSION;\\n }\\n uint256[50] private __gap;\\n}\\n\",\"keccak256\":\"0x6cd0bc8c149150614ca3d4a3d3d21f844a0ab3032625f34fcfcf1c2c8b351638\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/drafts/ERC20PermitUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.5 <0.8.0;\\n\\nimport \\\"../token/ERC20/ERC20Upgradeable.sol\\\";\\nimport \\\"./IERC20PermitUpgradeable.sol\\\";\\nimport \\\"../cryptography/ECDSAUpgradeable.sol\\\";\\nimport \\\"../utils/CountersUpgradeable.sol\\\";\\nimport \\\"./EIP712Upgradeable.sol\\\";\\nimport \\\"../proxy/Initializable.sol\\\";\\n\\n/**\\n * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\\n *\\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\\n * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't\\n * need to send a transaction, and thus is not required to hold Ether at all.\\n *\\n * _Available since v3.4._\\n */\\nabstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {\\n using CountersUpgradeable for CountersUpgradeable.Counter;\\n\\n mapping (address => CountersUpgradeable.Counter) private _nonces;\\n\\n // solhint-disable-next-line var-name-mixedcase\\n bytes32 private _PERMIT_TYPEHASH;\\n\\n /**\\n * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `\\\"1\\\"`.\\n *\\n * It's a good idea to use the same `name` that is defined as the ERC20 token name.\\n */\\n function __ERC20Permit_init(string memory name) internal initializer {\\n __Context_init_unchained();\\n __EIP712_init_unchained(name, \\\"1\\\");\\n __ERC20Permit_init_unchained(name);\\n }\\n\\n function __ERC20Permit_init_unchained(string memory name) internal initializer {\\n _PERMIT_TYPEHASH = keccak256(\\\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\\\");\\n }\\n\\n /**\\n * @dev See {IERC20Permit-permit}.\\n */\\n function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public virtual override {\\n // solhint-disable-next-line not-rely-on-time\\n require(block.timestamp <= deadline, \\\"ERC20Permit: expired deadline\\\");\\n\\n bytes32 structHash = keccak256(\\n abi.encode(\\n _PERMIT_TYPEHASH,\\n owner,\\n spender,\\n value,\\n _nonces[owner].current(),\\n deadline\\n )\\n );\\n\\n bytes32 hash = _hashTypedDataV4(structHash);\\n\\n address signer = ECDSAUpgradeable.recover(hash, v, r, s);\\n require(signer == owner, \\\"ERC20Permit: invalid signature\\\");\\n\\n _nonces[owner].increment();\\n _approve(owner, spender, value);\\n }\\n\\n /**\\n * @dev See {IERC20Permit-nonces}.\\n */\\n function nonces(address owner) public view override returns (uint256) {\\n return _nonces[owner].current();\\n }\\n\\n /**\\n * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.\\n */\\n // solhint-disable-next-line func-name-mixedcase\\n function DOMAIN_SEPARATOR() external view override returns (bytes32) {\\n return _domainSeparatorV4();\\n }\\n uint256[49] private __gap;\\n}\\n\",\"keccak256\":\"0xb30c40eb91411e29d23c8184b19fd37e6c2447f685631b798af2871ede483157\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/drafts/IERC20PermitUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\\n *\\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\\n * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't\\n * need to send a transaction, and thus is not required to hold Ether at all.\\n */\\ninterface IERC20PermitUpgradeable {\\n /**\\n * @dev Sets `value` as the allowance of `spender` over `owner`'s tokens,\\n * given `owner`'s signed approval.\\n *\\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\\n * ordering also apply here.\\n *\\n * Emits an {Approval} event.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n * - `deadline` must be a timestamp in the future.\\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\\n * over the EIP712-formatted function arguments.\\n * - the signature must use ``owner``'s current nonce (see {nonces}).\\n *\\n * For more information on the signature format, see the\\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\\n * section].\\n */\\n function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;\\n\\n /**\\n * @dev Returns the current nonce for `owner`. This value must be\\n * included whenever a signature is generated for {permit}.\\n *\\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\\n * prevents a signature from being used multiple times.\\n */\\n function nonces(address owner) external view returns (uint256);\\n\\n /**\\n * @dev Returns the domain separator used in the encoding of the signature for `permit`, as defined by {EIP712}.\\n */\\n // solhint-disable-next-line func-name-mixedcase\\n function DOMAIN_SEPARATOR() external view returns (bytes32);\\n}\\n\",\"keccak256\":\"0x30c000f3a68d252b09a738c782e0fc9dbf168b81021a195de6102f8d095681ae\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\\n * checks.\\n *\\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\\n * in bugs, because programmers usually assume that an overflow raises an\\n * error, which is the standard behavior in high level programming languages.\\n * `SafeMath` restores this intuition by reverting the transaction when an\\n * operation overflows.\\n *\\n * Using this library instead of the unchecked operations eliminates an entire\\n * class of bugs, so it's recommended to use it always.\\n */\\nlibrary SafeMathUpgradeable {\\n /**\\n * @dev Returns the addition of two unsigned integers, with an overflow flag.\\n *\\n * _Available since v3.4._\\n */\\n function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\\n uint256 c = a + b;\\n if (c < a) return (false, 0);\\n return (true, c);\\n }\\n\\n /**\\n * @dev Returns the substraction of two unsigned integers, with an overflow flag.\\n *\\n * _Available since v3.4._\\n */\\n function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\\n if (b > a) return (false, 0);\\n return (true, a - b);\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\\n *\\n * _Available since v3.4._\\n */\\n function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) return (true, 0);\\n uint256 c = a * b;\\n if (c / a != b) return (false, 0);\\n return (true, c);\\n }\\n\\n /**\\n * @dev Returns the division of two unsigned integers, with a division by zero flag.\\n *\\n * _Available since v3.4._\\n */\\n function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\\n if (b == 0) return (false, 0);\\n return (true, a / b);\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\\n *\\n * _Available since v3.4._\\n */\\n function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\\n if (b == 0) return (false, 0);\\n return (true, a % b);\\n }\\n\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n *\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, \\\"SafeMath: addition overflow\\\");\\n return c;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting on\\n * overflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n *\\n * - Subtraction cannot overflow.\\n */\\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\\n require(b <= a, \\\"SafeMath: subtraction overflow\\\");\\n return a - b;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n *\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\\n if (a == 0) return 0;\\n uint256 c = a * b;\\n require(c / a == b, \\\"SafeMath: multiplication overflow\\\");\\n return c;\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers, reverting on\\n * division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\\n require(b > 0, \\\"SafeMath: division by zero\\\");\\n return a / b;\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * reverting when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\\n require(b > 0, \\\"SafeMath: modulo by zero\\\");\\n return a % b;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\\n * overflow (when the result is negative).\\n *\\n * CAUTION: This function is deprecated because it requires allocating memory for the error\\n * message unnecessarily. For custom revert reasons use {trySub}.\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n *\\n * - Subtraction cannot overflow.\\n */\\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b <= a, errorMessage);\\n return a - b;\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers, reverting with custom message on\\n * division by zero. The result is rounded towards zero.\\n *\\n * CAUTION: This function is deprecated because it requires allocating memory for the error\\n * message unnecessarily. For custom revert reasons use {tryDiv}.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b > 0, errorMessage);\\n return a / b;\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * reverting with custom message when dividing by zero.\\n *\\n * CAUTION: This function is deprecated because it requires allocating memory for the error\\n * message unnecessarily. For custom revert reasons use {tryMod}.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b > 0, errorMessage);\\n return a % b;\\n }\\n}\\n\",\"keccak256\":\"0x0dd1e9b19801e3e7d900fbf4182d81e1afd23ad7be39504e33df6bbcba91d724\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/proxy/Initializable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\n// solhint-disable-next-line compiler-version\\npragma solidity >=0.4.24 <0.8.0;\\n\\nimport \\\"../utils/AddressUpgradeable.sol\\\";\\n\\n/**\\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\\n * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an\\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\\n *\\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\\n * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.\\n *\\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\\n */\\nabstract contract Initializable {\\n\\n /**\\n * @dev Indicates that the contract has been initialized.\\n */\\n bool private _initialized;\\n\\n /**\\n * @dev Indicates that the contract is in the process of being initialized.\\n */\\n bool private _initializing;\\n\\n /**\\n * @dev Modifier to protect an initializer function from being invoked twice.\\n */\\n modifier initializer() {\\n require(_initializing || _isConstructor() || !_initialized, \\\"Initializable: contract is already initialized\\\");\\n\\n bool isTopLevelCall = !_initializing;\\n if (isTopLevelCall) {\\n _initializing = true;\\n _initialized = true;\\n }\\n\\n _;\\n\\n if (isTopLevelCall) {\\n _initializing = false;\\n }\\n }\\n\\n /// @dev Returns true if and only if the function is running in the constructor\\n function _isConstructor() private view returns (bool) {\\n return !AddressUpgradeable.isContract(address(this));\\n }\\n}\\n\",\"keccak256\":\"0xd8e4eb08dcc1d1860fb347ba5ffd595242b9a1b66d49a47f2b4cb51c3f35017e\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\nimport \\\"../../utils/ContextUpgradeable.sol\\\";\\nimport \\\"./IERC20Upgradeable.sol\\\";\\nimport \\\"../../math/SafeMathUpgradeable.sol\\\";\\nimport \\\"../../proxy/Initializable.sol\\\";\\n\\n/**\\n * @dev Implementation of the {IERC20} interface.\\n *\\n * This implementation is agnostic to the way tokens are created. This means\\n * that a supply mechanism has to be added in a derived contract using {_mint}.\\n * For a generic mechanism see {ERC20PresetMinterPauser}.\\n *\\n * TIP: For a detailed writeup see our guide\\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\\n * to implement supply mechanisms].\\n *\\n * We have followed general OpenZeppelin guidelines: functions revert instead\\n * of returning `false` on failure. This behavior is nonetheless conventional\\n * and does not conflict with the expectations of ERC20 applications.\\n *\\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\\n * This allows applications to reconstruct the allowance for all accounts just\\n * by listening to said events. Other implementations of the EIP may not emit\\n * these events, as it isn't required by the specification.\\n *\\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\\n * functions have been added to mitigate the well-known issues around setting\\n * allowances. See {IERC20-approve}.\\n */\\ncontract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable {\\n using SafeMathUpgradeable for uint256;\\n\\n mapping (address => uint256) private _balances;\\n\\n mapping (address => mapping (address => uint256)) private _allowances;\\n\\n uint256 private _totalSupply;\\n\\n string private _name;\\n string private _symbol;\\n uint8 private _decimals;\\n\\n /**\\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\\n * a default value of 18.\\n *\\n * To select a different value for {decimals}, use {_setupDecimals}.\\n *\\n * All three of these values are immutable: they can only be set once during\\n * construction.\\n */\\n function __ERC20_init(string memory name_, string memory symbol_) internal initializer {\\n __Context_init_unchained();\\n __ERC20_init_unchained(name_, symbol_);\\n }\\n\\n function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer {\\n _name = name_;\\n _symbol = symbol_;\\n _decimals = 18;\\n }\\n\\n /**\\n * @dev Returns the name of the token.\\n */\\n function name() public view virtual returns (string memory) {\\n return _name;\\n }\\n\\n /**\\n * @dev Returns the symbol of the token, usually a shorter version of the\\n * name.\\n */\\n function symbol() public view virtual returns (string memory) {\\n return _symbol;\\n }\\n\\n /**\\n * @dev Returns the number of decimals used to get its user representation.\\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\\n *\\n * Tokens usually opt for a value of 18, imitating the relationship between\\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\\n * called.\\n *\\n * NOTE: This information is only used for _display_ purposes: it in\\n * no way affects any of the arithmetic of the contract, including\\n * {IERC20-balanceOf} and {IERC20-transfer}.\\n */\\n function decimals() public view virtual returns (uint8) {\\n return _decimals;\\n }\\n\\n /**\\n * @dev See {IERC20-totalSupply}.\\n */\\n function totalSupply() public view virtual override returns (uint256) {\\n return _totalSupply;\\n }\\n\\n /**\\n * @dev See {IERC20-balanceOf}.\\n */\\n function balanceOf(address account) public view virtual override returns (uint256) {\\n return _balances[account];\\n }\\n\\n /**\\n * @dev See {IERC20-transfer}.\\n *\\n * Requirements:\\n *\\n * - `recipient` cannot be the zero address.\\n * - the caller must have a balance of at least `amount`.\\n */\\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\\n _transfer(_msgSender(), recipient, amount);\\n return true;\\n }\\n\\n /**\\n * @dev See {IERC20-allowance}.\\n */\\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\\n return _allowances[owner][spender];\\n }\\n\\n /**\\n * @dev See {IERC20-approve}.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n */\\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\\n _approve(_msgSender(), spender, amount);\\n return true;\\n }\\n\\n /**\\n * @dev See {IERC20-transferFrom}.\\n *\\n * Emits an {Approval} event indicating the updated allowance. This is not\\n * required by the EIP. See the note at the beginning of {ERC20}.\\n *\\n * Requirements:\\n *\\n * - `sender` and `recipient` cannot be the zero address.\\n * - `sender` must have a balance of at least `amount`.\\n * - the caller must have allowance for ``sender``'s tokens of at least\\n * `amount`.\\n */\\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\\n _transfer(sender, recipient, amount);\\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \\\"ERC20: transfer amount exceeds allowance\\\"));\\n return true;\\n }\\n\\n /**\\n * @dev Atomically increases the allowance granted to `spender` by the caller.\\n *\\n * This is an alternative to {approve} that can be used as a mitigation for\\n * problems described in {IERC20-approve}.\\n *\\n * Emits an {Approval} event indicating the updated allowance.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n */\\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\\n return true;\\n }\\n\\n /**\\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\\n *\\n * This is an alternative to {approve} that can be used as a mitigation for\\n * problems described in {IERC20-approve}.\\n *\\n * Emits an {Approval} event indicating the updated allowance.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n * - `spender` must have allowance for the caller of at least\\n * `subtractedValue`.\\n */\\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \\\"ERC20: decreased allowance below zero\\\"));\\n return true;\\n }\\n\\n /**\\n * @dev Moves tokens `amount` from `sender` to `recipient`.\\n *\\n * This is internal function is equivalent to {transfer}, and can be used to\\n * e.g. implement automatic token fees, slashing mechanisms, etc.\\n *\\n * Emits a {Transfer} event.\\n *\\n * Requirements:\\n *\\n * - `sender` cannot be the zero address.\\n * - `recipient` cannot be the zero address.\\n * - `sender` must have a balance of at least `amount`.\\n */\\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\\n require(sender != address(0), \\\"ERC20: transfer from the zero address\\\");\\n require(recipient != address(0), \\\"ERC20: transfer to the zero address\\\");\\n\\n _beforeTokenTransfer(sender, recipient, amount);\\n\\n _balances[sender] = _balances[sender].sub(amount, \\\"ERC20: transfer amount exceeds balance\\\");\\n _balances[recipient] = _balances[recipient].add(amount);\\n emit Transfer(sender, recipient, amount);\\n }\\n\\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\\n * the total supply.\\n *\\n * Emits a {Transfer} event with `from` set to the zero address.\\n *\\n * Requirements:\\n *\\n * - `to` cannot be the zero address.\\n */\\n function _mint(address account, uint256 amount) internal virtual {\\n require(account != address(0), \\\"ERC20: mint to the zero address\\\");\\n\\n _beforeTokenTransfer(address(0), account, amount);\\n\\n _totalSupply = _totalSupply.add(amount);\\n _balances[account] = _balances[account].add(amount);\\n emit Transfer(address(0), account, amount);\\n }\\n\\n /**\\n * @dev Destroys `amount` tokens from `account`, reducing the\\n * total supply.\\n *\\n * Emits a {Transfer} event with `to` set to the zero address.\\n *\\n * Requirements:\\n *\\n * - `account` cannot be the zero address.\\n * - `account` must have at least `amount` tokens.\\n */\\n function _burn(address account, uint256 amount) internal virtual {\\n require(account != address(0), \\\"ERC20: burn from the zero address\\\");\\n\\n _beforeTokenTransfer(account, address(0), amount);\\n\\n _balances[account] = _balances[account].sub(amount, \\\"ERC20: burn amount exceeds balance\\\");\\n _totalSupply = _totalSupply.sub(amount);\\n emit Transfer(account, address(0), amount);\\n }\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\\n *\\n * This internal function is equivalent to `approve`, and can be used to\\n * e.g. set automatic allowances for certain subsystems, etc.\\n *\\n * Emits an {Approval} event.\\n *\\n * Requirements:\\n *\\n * - `owner` cannot be the zero address.\\n * - `spender` cannot be the zero address.\\n */\\n function _approve(address owner, address spender, uint256 amount) internal virtual {\\n require(owner != address(0), \\\"ERC20: approve from the zero address\\\");\\n require(spender != address(0), \\\"ERC20: approve to the zero address\\\");\\n\\n _allowances[owner][spender] = amount;\\n emit Approval(owner, spender, amount);\\n }\\n\\n /**\\n * @dev Sets {decimals} to a value other than the default one of 18.\\n *\\n * WARNING: This function should only be called from the constructor. Most\\n * applications that interact with token contracts will not expect\\n * {decimals} to ever change, and may work incorrectly if it does.\\n */\\n function _setupDecimals(uint8 decimals_) internal virtual {\\n _decimals = decimals_;\\n }\\n\\n /**\\n * @dev Hook that is called before any transfer of tokens. This includes\\n * minting and burning.\\n *\\n * Calling conditions:\\n *\\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\\n * will be to transferred to `to`.\\n * - when `from` is zero, `amount` tokens will be minted for `to`.\\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\\n * - `from` and `to` are never both zero.\\n *\\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\\n */\\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\\n uint256[44] private __gap;\\n}\\n\",\"keccak256\":\"0x506dd0718f9ace50588c13848167df5e04ae16abb56341afb10c31ff149bc79b\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20Upgradeable {\\n /**\\n * @dev Returns the amount of tokens in existence.\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @dev Returns the amount of tokens owned by `account`.\\n */\\n function balanceOf(address account) external view returns (uint256);\\n\\n /**\\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transfer(address recipient, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Returns the remaining number of tokens that `spender` will be\\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n * zero by default.\\n *\\n * This value changes when {approve} or {transferFrom} are called.\\n */\\n function allowance(address owner, address spender) external view returns (uint256);\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n * that someone may use both the old and the new allowance by unfortunate\\n * transaction ordering. One possible solution to mitigate this race\\n * condition is to first reduce the spender's allowance to 0 and set the\\n * desired value afterwards:\\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address spender, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\\n * allowance mechanism. `amount` is then deducted from the caller's\\n * allowance.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n * another (`to`).\\n *\\n * Note that `value` may be zero.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n /**\\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n * a call to {approve}. `value` is the new allowance.\\n */\\n event Approval(address indexed owner, address indexed spender, uint256 value);\\n}\\n\",\"keccak256\":\"0xa1931c47a617014f858580db625aa0dcf343796f39acd4b5b51effc092a1f0a9\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.2 <0.8.0;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary AddressUpgradeable {\\n /**\\n * @dev Returns true if `account` is a contract.\\n *\\n * [IMPORTANT]\\n * ====\\n * It is unsafe to assume that an address for which this function returns\\n * false is an externally-owned account (EOA) and not a contract.\\n *\\n * Among others, `isContract` will return false for the following\\n * types of addresses:\\n *\\n * - an externally-owned account\\n * - a contract in construction\\n * - an address where a contract will be created\\n * - an address where a contract lived, but was destroyed\\n * ====\\n */\\n function isContract(address account) internal view returns (bool) {\\n // This method relies on extcodesize, which returns 0 for contracts in\\n // construction, since the code is only stored at the end of the\\n // constructor execution.\\n\\n uint256 size;\\n // solhint-disable-next-line no-inline-assembly\\n assembly { size := extcodesize(account) }\\n return size > 0;\\n }\\n\\n /**\\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n * `recipient`, forwarding all available gas and reverting on errors.\\n *\\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n * imposed by `transfer`, making them unable to receive funds via\\n * `transfer`. {sendValue} removes this limitation.\\n *\\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n *\\n * IMPORTANT: because control is transferred to `recipient`, care must be\\n * taken to not create reentrancy vulnerabilities. Consider using\\n * {ReentrancyGuard} or the\\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n */\\n function sendValue(address payable recipient, uint256 amount) internal {\\n require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\\n (bool success, ) = recipient.call{ value: amount }(\\\"\\\");\\n require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n }\\n\\n /**\\n * @dev Performs a Solidity function call using a low level `call`. A\\n * plain`call` is an unsafe replacement for a function call: use this\\n * function instead.\\n *\\n * If `target` reverts with a revert reason, it is bubbled up by this\\n * function (like regular Solidity function calls).\\n *\\n * Returns the raw returned data. To convert to the expected return value,\\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n *\\n * Requirements:\\n *\\n * - `target` must be a contract.\\n * - calling `target` with `data` must not revert.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n * `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, 0, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but also transferring `value` wei to `target`.\\n *\\n * Requirements:\\n *\\n * - the calling contract must have an ETH balance of at least `value`.\\n * - the called Solidity function must be `payable`.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n * with `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\\n require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls\\n (bool success, bytes memory returndata) = target.call{ value: value }(data);\\n return _verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {\\n require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls\\n (bool success, bytes memory returndata) = target.staticcall(data);\\n return _verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {\\n if (success) {\\n return returndata;\\n } else {\\n // Look for revert reason and bubble it up if present\\n if (returndata.length > 0) {\\n // The easiest way to bubble the revert reason is using memory via assembly\\n\\n // solhint-disable-next-line no-inline-assembly\\n assembly {\\n let returndata_size := mload(returndata)\\n revert(add(32, returndata), returndata_size)\\n }\\n } else {\\n revert(errorMessage);\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0xfc5ea91fa9ceb1961023b2a6c978b902888c52b90847ac7813fe3b79524165f6\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\nimport \\\"../proxy/Initializable.sol\\\";\\n\\n/*\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with GSN meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract ContextUpgradeable is Initializable {\\n function __Context_init() internal initializer {\\n __Context_init_unchained();\\n }\\n\\n function __Context_init_unchained() internal initializer {\\n }\\n function _msgSender() internal view virtual returns (address payable) {\\n return msg.sender;\\n }\\n\\n function _msgData() internal view virtual returns (bytes memory) {\\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\\n return msg.data;\\n }\\n uint256[50] private __gap;\\n}\\n\",\"keccak256\":\"0xbbf8a21b9a66c48d45ff771b8563c6df19ba451d63dfb8380a865c1e1f29d1a0\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\nimport \\\"../math/SafeMathUpgradeable.sol\\\";\\n\\n/**\\n * @title Counters\\n * @author Matt Condon (@shrugs)\\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\\n *\\n * Include with `using Counters for Counters.Counter;`\\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}\\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\\n * directly accessed.\\n */\\nlibrary CountersUpgradeable {\\n using SafeMathUpgradeable for uint256;\\n\\n struct Counter {\\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\\n // this feature: see https://github.com/ethereum/solidity/issues/4637\\n uint256 _value; // default: 0\\n }\\n\\n function current(Counter storage counter) internal view returns (uint256) {\\n return counter._value;\\n }\\n\\n function increment(Counter storage counter) internal {\\n // The {SafeMath} overflow check can be skipped here, see the comment at the top\\n counter._value += 1;\\n }\\n\\n function decrement(Counter storage counter) internal {\\n counter._value = counter._value.sub(1);\\n }\\n}\\n\",\"keccak256\":\"0xe0162cc9b4d619790be38ce4c184a1cd33d41698629ae6bcac00049f24f6cce8\",\"license\":\"MIT\"},\"@pooltogether/uniform-random-number/contracts/UniformRandomNumber.sol\":{\"content\":\"/**\\nCopyright 2019 PoolTogether LLC\\n\\nThis file is part of PoolTogether.\\n\\nPoolTogether is free software: you can redistribute it and/or modify\\nit under the terms of the GNU General Public License as published by\\nthe Free Software Foundation under version 3 of the License.\\n\\nPoolTogether is distributed in the hope that it will be useful,\\nbut WITHOUT ANY WARRANTY; without even the implied warranty of\\nMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\\nGNU General Public License for more details.\\n\\nYou should have received a copy of the GNU General Public License\\nalong with PoolTogether. If not, see .\\n*/\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @author Brendan Asselstine\\n * @notice A library that uses entropy to select a random number within a bound. Compensates for modulo bias.\\n * @dev Thanks to https://medium.com/hownetworks/dont-waste-cycles-with-modulo-bias-35b6fdafcf94\\n */\\nlibrary UniformRandomNumber {\\n /// @notice Select a random number without modulo bias using a random seed and upper bound\\n /// @param _entropy The seed for randomness\\n /// @param _upperBound The upper bound of the desired number\\n /// @return A random number less than the _upperBound\\n function uniform(uint256 _entropy, uint256 _upperBound) internal pure returns (uint256) {\\n require(_upperBound > 0, \\\"UniformRand/min-bound\\\");\\n uint256 min = -_upperBound % _upperBound;\\n uint256 random = _entropy;\\n while (true) {\\n if (random >= min) {\\n break;\\n }\\n random = uint256(keccak256(abi.encodePacked(random)));\\n }\\n return random % _upperBound;\\n }\\n}\",\"keccak256\":\"0x0d86eb3349d8a9e226ff6f3328a6a79bbf872859a4afbe489051fbf3b8550df4\"},\"contracts/builders/ControlledTokenBuilder.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\npragma experimental ABIEncoderV2;\\n\\nimport \\\"../token/ControlledTokenProxyFactory.sol\\\";\\nimport \\\"../token/TicketProxyFactory.sol\\\";\\n\\n/* solium-disable security/no-block-members */\\ncontract ControlledTokenBuilder {\\n\\n event CreatedControlledToken(address indexed token);\\n event CreatedTicket(address indexed token);\\n\\n ControlledTokenProxyFactory public controlledTokenProxyFactory;\\n TicketProxyFactory public ticketProxyFactory;\\n\\n struct ControlledTokenConfig {\\n string name;\\n string symbol;\\n uint8 decimals;\\n TokenControllerInterface controller;\\n }\\n\\n constructor (\\n ControlledTokenProxyFactory _controlledTokenProxyFactory,\\n TicketProxyFactory _ticketProxyFactory\\n ) public {\\n require(address(_controlledTokenProxyFactory) != address(0), \\\"ControlledTokenBuilder/controlledTokenProxyFactory-not-zero\\\");\\n require(address(_ticketProxyFactory) != address(0), \\\"ControlledTokenBuilder/ticketProxyFactory-not-zero\\\");\\n controlledTokenProxyFactory = _controlledTokenProxyFactory;\\n ticketProxyFactory = _ticketProxyFactory;\\n }\\n\\n function createControlledToken(\\n ControlledTokenConfig calldata config\\n ) external returns (ControlledToken) {\\n ControlledToken token = controlledTokenProxyFactory.create();\\n\\n token.initialize(\\n config.name,\\n config.symbol,\\n config.decimals,\\n config.controller\\n );\\n\\n emit CreatedControlledToken(address(token));\\n\\n return token;\\n }\\n\\n function createTicket(\\n ControlledTokenConfig calldata config\\n ) external returns (Ticket) {\\n Ticket token = ticketProxyFactory.create();\\n\\n token.initialize(\\n config.name,\\n config.symbol,\\n config.decimals,\\n config.controller\\n );\\n\\n emit CreatedTicket(address(token));\\n\\n return token;\\n }\\n}\\n\",\"keccak256\":\"0x87077a6f3a7cc093a1742ebb24a62b1c8a728341b3c49e3a147630f77c5aada7\",\"license\":\"GPL-3.0\"},\"contracts/external/openzeppelin/ProxyFactory.sol\":{\"content\":\"pragma solidity 0.6.12;\\n\\n// solium-disable security/no-inline-assembly\\n// solium-disable security/no-low-level-calls\\ncontract ProxyFactory {\\n\\n event ProxyCreated(address proxy);\\n\\n function deployMinimal(address _logic, bytes memory _data) public returns (address proxy) {\\n // Adapted from https://github.com/optionality/clone-factory/blob/32782f82dfc5a00d103a7e61a17a5dedbd1e8e9d/contracts/CloneFactory.sol\\n bytes20 targetBytes = bytes20(_logic);\\n assembly {\\n let clone := mload(0x40)\\n mstore(clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)\\n mstore(add(clone, 0x14), targetBytes)\\n mstore(add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)\\n proxy := create(0, clone, 0x37)\\n }\\n\\n emit ProxyCreated(address(proxy));\\n\\n if(_data.length > 0) {\\n (bool success,) = proxy.call(_data);\\n require(success, \\\"ProxyFactory/constructor-call-failed\\\");\\n }\\n }\\n}\\n\",\"keccak256\":\"0xf0422303985796fdd8bdf772ac8e34331e2e63006f657989cca010fa4776d735\"},\"contracts/token/ControlledToken.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\n\\nimport \\\"@openzeppelin/contracts-upgradeable/drafts/ERC20PermitUpgradeable.sol\\\";\\n\\nimport \\\"./TokenControllerInterface.sol\\\";\\nimport \\\"./ControlledTokenInterface.sol\\\";\\n\\n/// @title Controlled ERC20 Token\\n/// @notice ERC20 Tokens with a controller for minting & burning\\ncontract ControlledToken is ERC20PermitUpgradeable, ControlledTokenInterface {\\n\\n /// @dev Emitted when an instance is initialized\\n event Initialized(\\n string _name,\\n string _symbol,\\n uint8 _decimals,\\n TokenControllerInterface _controller\\n );\\n\\n /// @notice Interface to the contract responsible for controlling mint/burn\\n TokenControllerInterface public override controller;\\n\\n /// @notice Initializes the Controlled Token with Token Details and the Controller\\n /// @param _name The name of the Token\\n /// @param _symbol The symbol for the Token\\n /// @param _decimals The number of decimals for the Token\\n /// @param _controller Address of the Controller contract for minting & burning\\n function initialize(\\n string memory _name,\\n string memory _symbol,\\n uint8 _decimals,\\n TokenControllerInterface _controller\\n )\\n public\\n virtual\\n initializer\\n {\\n require(address(_controller) != address(0), \\\"ControlledToken/controller-not-zero\\\");\\n __ERC20_init(_name, _symbol);\\n __ERC20Permit_init(\\\"PoolTogether ControlledToken\\\");\\n controller = _controller;\\n _setupDecimals(_decimals);\\n\\n emit Initialized(\\n _name,\\n _symbol,\\n _decimals,\\n _controller\\n );\\n }\\n\\n /// @notice Allows the controller to mint tokens for a user account\\n /// @dev May be overridden to provide more granular control over minting\\n /// @param _user Address of the receiver of the minted tokens\\n /// @param _amount Amount of tokens to mint\\n function controllerMint(address _user, uint256 _amount) external virtual override onlyController {\\n _mint(_user, _amount);\\n }\\n\\n /// @notice Allows the controller to burn tokens from a user account\\n /// @dev May be overridden to provide more granular control over burning\\n /// @param _user Address of the holder account to burn tokens from\\n /// @param _amount Amount of tokens to burn\\n function controllerBurn(address _user, uint256 _amount) external virtual override onlyController {\\n _burn(_user, _amount);\\n }\\n\\n /// @notice Allows an operator via the controller to burn tokens on behalf of a user account\\n /// @dev May be overridden to provide more granular control over operator-burning\\n /// @param _operator Address of the operator performing the burn action via the controller contract\\n /// @param _user Address of the holder account to burn tokens from\\n /// @param _amount Amount of tokens to burn\\n function controllerBurnFrom(address _operator, address _user, uint256 _amount) external virtual override onlyController {\\n if (_operator != _user) {\\n uint256 decreasedAllowance = allowance(_user, _operator).sub(_amount, \\\"ControlledToken/exceeds-allowance\\\");\\n _approve(_user, _operator, decreasedAllowance);\\n }\\n _burn(_user, _amount);\\n }\\n\\n /// @dev Function modifier to ensure that the caller is the controller contract\\n modifier onlyController {\\n require(_msgSender() == address(controller), \\\"ControlledToken/only-controller\\\");\\n _;\\n }\\n\\n /// @dev Controller hook to provide notifications & rule validations on token transfers to the controller.\\n /// This includes minting and burning.\\n /// May be overridden to provide more granular control over operator-burning\\n /// @param from Address of the account sending the tokens (address(0x0) on minting)\\n /// @param to Address of the account receiving the tokens (address(0x0) on burning)\\n /// @param amount Amount of tokens being transferred\\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {\\n controller.beforeTokenTransfer(from, to, amount);\\n }\\n}\\n\",\"keccak256\":\"0x55f2393331e58b48d9bdb40a09c41704d4e5ac59aaf7fa29dc5d17de08a9363e\",\"license\":\"GPL-3.0\"},\"contracts/token/ControlledTokenInterface.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\n\\nimport \\\"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\\\";\\n\\nimport \\\"./TokenControllerInterface.sol\\\";\\n\\n/// @title Controlled ERC20 Token\\n/// @notice ERC20 Tokens with a controller for minting & burning\\ninterface ControlledTokenInterface is IERC20Upgradeable {\\n\\n /// @notice Interface to the contract responsible for controlling mint/burn\\n function controller() external view returns (TokenControllerInterface);\\n\\n /// @notice Allows the controller to mint tokens for a user account\\n /// @dev May be overridden to provide more granular control over minting\\n /// @param _user Address of the receiver of the minted tokens\\n /// @param _amount Amount of tokens to mint\\n function controllerMint(address _user, uint256 _amount) external;\\n\\n /// @notice Allows the controller to burn tokens from a user account\\n /// @dev May be overridden to provide more granular control over burning\\n /// @param _user Address of the holder account to burn tokens from\\n /// @param _amount Amount of tokens to burn\\n function controllerBurn(address _user, uint256 _amount) external;\\n\\n /// @notice Allows an operator via the controller to burn tokens on behalf of a user account\\n /// @dev May be overridden to provide more granular control over operator-burning\\n /// @param _operator Address of the operator performing the burn action via the controller contract\\n /// @param _user Address of the holder account to burn tokens from\\n /// @param _amount Amount of tokens to burn\\n function controllerBurnFrom(address _operator, address _user, uint256 _amount) external;\\n}\\n\",\"keccak256\":\"0x13d454412d09227357e89355d7803149663982634aab16e3d5e35b3ebd34a851\",\"license\":\"GPL-3.0\"},\"contracts/token/ControlledTokenProxyFactory.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\n\\nimport \\\"./ControlledToken.sol\\\";\\nimport \\\"../external/openzeppelin/ProxyFactory.sol\\\";\\n\\n/// @title Controlled ERC20 Token Factory\\n/// @notice Minimal proxy pattern for creating new Controlled ERC20 Tokens\\ncontract ControlledTokenProxyFactory is ProxyFactory {\\n\\n /// @notice Contract template for deploying proxied tokens\\n ControlledToken public instance;\\n\\n /// @notice Initializes the Factory with an instance of the Controlled ERC20 Token\\n constructor () public {\\n instance = new ControlledToken();\\n }\\n\\n /// @notice Creates a new Controlled ERC20 Token as a proxy of the template instance\\n /// @return A reference to the new proxied Controlled ERC20 Token\\n function create() external returns (ControlledToken) {\\n return ControlledToken(deployMinimal(address(instance), \\\"\\\"));\\n }\\n}\\n\",\"keccak256\":\"0x3872184d356e0bc4aadf034dbc8dccb454c00b7efdc8f4d0a96621702a9d5135\",\"license\":\"GPL-3.0\"},\"contracts/token/Ticket.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\n\\nimport \\\"sortition-sum-tree-factory/contracts/SortitionSumTreeFactory.sol\\\";\\nimport \\\"@pooltogether/uniform-random-number/contracts/UniformRandomNumber.sol\\\";\\n\\nimport \\\"./ControlledToken.sol\\\";\\nimport \\\"./TicketInterface.sol\\\";\\n\\ncontract Ticket is ControlledToken, TicketInterface {\\n using SortitionSumTreeFactory for SortitionSumTreeFactory.SortitionSumTrees;\\n\\n bytes32 constant private TREE_KEY = keccak256(\\\"PoolTogether/Ticket\\\");\\n uint256 constant private MAX_TREE_LEAVES = 5;\\n\\n /// @dev Emitted when an instance is initialized\\n event Initialized(\\n string _name,\\n string _symbol,\\n uint8 _decimals,\\n TokenControllerInterface _controller\\n );\\n\\n // Ticket-weighted odds\\n SortitionSumTreeFactory.SortitionSumTrees internal sortitionSumTrees;\\n\\n /// @notice Initializes the Controlled Token with Token Details and the Controller\\n /// @param _name The name of the Token\\n /// @param _symbol The symbol for the Token\\n /// @param _decimals The number of decimals for the Token\\n /// @param _controller Address of the Controller contract for minting & burning\\n function initialize(\\n string memory _name,\\n string memory _symbol,\\n uint8 _decimals,\\n TokenControllerInterface _controller\\n )\\n public\\n virtual\\n override\\n initializer\\n {\\n require(address(_controller) != address(0), \\\"Ticket/controller-not-zero\\\");\\n ControlledToken.initialize(_name, _symbol, _decimals, _controller);\\n sortitionSumTrees.createTree(TREE_KEY, MAX_TREE_LEAVES);\\n emit Initialized(\\n _name,\\n _symbol,\\n _decimals,\\n _controller\\n );\\n }\\n\\n /// @notice Returns the user's chance of winning.\\n function chanceOf(address user) external view returns (uint256) {\\n return sortitionSumTrees.stakeOf(TREE_KEY, bytes32(uint256(user)));\\n }\\n\\n /// @notice Selects a user using a random number. The random number will be uniformly bounded to the ticket totalSupply.\\n /// @param randomNumber The random number to use to select a user.\\n /// @return The winner\\n function draw(uint256 randomNumber) external view override returns (address) {\\n uint256 bound = totalSupply();\\n address selected;\\n if (bound == 0) {\\n selected = address(0);\\n } else {\\n uint256 token = UniformRandomNumber.uniform(randomNumber, bound);\\n selected = address(uint256(sortitionSumTrees.draw(TREE_KEY, token)));\\n }\\n return selected;\\n }\\n\\n /// @dev Controller hook to provide notifications & rule validations on token transfers to the controller.\\n /// This includes minting and burning.\\n /// May be overridden to provide more granular control over operator-burning\\n /// @param from Address of the account sending the tokens (address(0x0) on minting)\\n /// @param to Address of the account receiving the tokens (address(0x0) on burning)\\n /// @param amount Amount of tokens being transferred\\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {\\n super._beforeTokenTransfer(from, to, amount);\\n\\n // optimize: ignore transfers to self\\n if (from == to) {\\n return;\\n }\\n\\n if (from != address(0)) {\\n uint256 fromBalance = balanceOf(from).sub(amount);\\n sortitionSumTrees.set(TREE_KEY, fromBalance, bytes32(uint256(from)));\\n }\\n\\n if (to != address(0)) {\\n uint256 toBalance = balanceOf(to).add(amount);\\n sortitionSumTrees.set(TREE_KEY, toBalance, bytes32(uint256(to)));\\n }\\n }\\n\\n}\",\"keccak256\":\"0xf659dcfda626c713b7dd64525476d282e141163977edd881b647e83f505c4044\",\"license\":\"GPL-3.0\"},\"contracts/token/TicketInterface.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity >=0.5.0 <0.7.0;\\n\\n/// @title Interface that allows a user to draw an address using an index\\ninterface TicketInterface {\\n /// @notice Selects a user using a random number. The random number will be uniformly bounded to the ticket totalSupply.\\n /// @param randomNumber The random number to use to select a user.\\n /// @return The winner\\n function draw(uint256 randomNumber) external view returns (address);\\n}\",\"keccak256\":\"0x5201a9a22748781592abd2003801289224d4899292195b7de937cd5748be87dd\",\"license\":\"GPL-3.0\"},\"contracts/token/TicketProxyFactory.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity 0.6.12;\\n\\nimport \\\"@openzeppelin/contracts-upgradeable/proxy/Initializable.sol\\\";\\n\\nimport \\\"./Ticket.sol\\\";\\nimport \\\"../external/openzeppelin/ProxyFactory.sol\\\";\\n\\n/// @title Controlled ERC20 Token Factory\\n/// @notice Minimal proxy pattern for creating new Controlled ERC20 Tokens\\ncontract TicketProxyFactory is ProxyFactory {\\n\\n /// @notice Contract template for deploying proxied tokens\\n Ticket public instance;\\n\\n /// @notice Initializes the Factory with an instance of the Controlled ERC20 Token\\n constructor () public {\\n instance = new Ticket();\\n }\\n\\n /// @notice Creates a new Controlled ERC20 Token as a proxy of the template instance\\n /// @return A reference to the new proxied Controlled ERC20 Token\\n function create() external returns (Ticket) {\\n return Ticket(deployMinimal(address(instance), \\\"\\\"));\\n }\\n}\\n\",\"keccak256\":\"0xb68f1cd27e8caaab3f69d6ccd14e70ff2d7c3685c9c45733f62690087833410e\",\"license\":\"GPL-3.0\"},\"contracts/token/TokenControllerInterface.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0\\n\\npragma solidity >=0.5.0 <0.7.0;\\n\\n/// @title Controlled ERC20 Token Interface\\n/// @notice Required interface for Controlled ERC20 Tokens linked to a Prize Pool\\n/// @dev Defines the spec required to be implemented by a Controlled ERC20 Token\\ninterface TokenControllerInterface {\\n\\n /// @dev Controller hook to provide notifications & rule validations on token transfers to the controller.\\n /// This includes minting and burning.\\n /// @param from Address of the account sending the tokens (address(0x0) on minting)\\n /// @param to Address of the account receiving the tokens (address(0x0) on burning)\\n /// @param amount Amount of tokens being transferred\\n function beforeTokenTransfer(address from, address to, uint256 amount) external;\\n}\\n\",\"keccak256\":\"0x5dd2346b0d9616b15bfad6bd8dab3a34ad41aa77a5d0c5f4c1b54c0d5009b77f\",\"license\":\"GPL-3.0\"},\"sortition-sum-tree-factory/contracts/SortitionSumTreeFactory.sol\":{\"content\":\"/**\\n * @reviewers: [@clesaege, @unknownunknown1, @ferittuncer]\\n * @auditors: []\\n * @bounties: [<14 days 10 ETH max payout>]\\n * @deployments: []\\n */\\n\\npragma solidity ^0.6.0;\\n\\n/**\\n * @title SortitionSumTreeFactory\\n * @author Enrique Piqueras - \\n * @dev A factory of trees that keep track of staked values for sortition.\\n */\\nlibrary SortitionSumTreeFactory {\\n /* Structs */\\n\\n struct SortitionSumTree {\\n uint K; // The maximum number of childs per node.\\n // We use this to keep track of vacant positions in the tree after removing a leaf. This is for keeping the tree as balanced as possible without spending gas on moving nodes around.\\n uint[] stack;\\n uint[] nodes;\\n // Two-way mapping of IDs to node indexes. Note that node index 0 is reserved for the root node, and means the ID does not have a node.\\n mapping(bytes32 => uint) IDsToNodeIndexes;\\n mapping(uint => bytes32) nodeIndexesToIDs;\\n }\\n\\n /* Storage */\\n\\n struct SortitionSumTrees {\\n mapping(bytes32 => SortitionSumTree) sortitionSumTrees;\\n }\\n\\n /* internal */\\n\\n /**\\n * @dev Create a sortition sum tree at the specified key.\\n * @param _key The key of the new tree.\\n * @param _K The number of children each node in the tree should have.\\n */\\n function createTree(SortitionSumTrees storage self, bytes32 _key, uint _K) internal {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n require(tree.K == 0, \\\"Tree already exists.\\\");\\n require(_K > 1, \\\"K must be greater than one.\\\");\\n tree.K = _K;\\n tree.stack = new uint[](0);\\n tree.nodes = new uint[](0);\\n tree.nodes.push(0);\\n }\\n\\n /**\\n * @dev Set a value of a tree.\\n * @param _key The key of the tree.\\n * @param _value The new value.\\n * @param _ID The ID of the value.\\n * `O(log_k(n))` where\\n * `k` is the maximum number of childs per node in the tree,\\n * and `n` is the maximum number of nodes ever appended.\\n */\\n function set(SortitionSumTrees storage self, bytes32 _key, uint _value, bytes32 _ID) internal {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n uint treeIndex = tree.IDsToNodeIndexes[_ID];\\n\\n if (treeIndex == 0) { // No existing node.\\n if (_value != 0) { // Non zero value.\\n // Append.\\n // Add node.\\n if (tree.stack.length == 0) { // No vacant spots.\\n // Get the index and append the value.\\n treeIndex = tree.nodes.length;\\n tree.nodes.push(_value);\\n\\n // Potentially append a new node and make the parent a sum node.\\n if (treeIndex != 1 && (treeIndex - 1) % tree.K == 0) { // Is first child.\\n uint parentIndex = treeIndex / tree.K;\\n bytes32 parentID = tree.nodeIndexesToIDs[parentIndex];\\n uint newIndex = treeIndex + 1;\\n tree.nodes.push(tree.nodes[parentIndex]);\\n delete tree.nodeIndexesToIDs[parentIndex];\\n tree.IDsToNodeIndexes[parentID] = newIndex;\\n tree.nodeIndexesToIDs[newIndex] = parentID;\\n }\\n } else { // Some vacant spot.\\n // Pop the stack and append the value.\\n treeIndex = tree.stack[tree.stack.length - 1];\\n tree.stack.pop();\\n tree.nodes[treeIndex] = _value;\\n }\\n\\n // Add label.\\n tree.IDsToNodeIndexes[_ID] = treeIndex;\\n tree.nodeIndexesToIDs[treeIndex] = _ID;\\n\\n updateParents(self, _key, treeIndex, true, _value);\\n }\\n } else { // Existing node.\\n if (_value == 0) { // Zero value.\\n // Remove.\\n // Remember value and set to 0.\\n uint value = tree.nodes[treeIndex];\\n tree.nodes[treeIndex] = 0;\\n\\n // Push to stack.\\n tree.stack.push(treeIndex);\\n\\n // Clear label.\\n delete tree.IDsToNodeIndexes[_ID];\\n delete tree.nodeIndexesToIDs[treeIndex];\\n\\n updateParents(self, _key, treeIndex, false, value);\\n } else if (_value != tree.nodes[treeIndex]) { // New, non zero value.\\n // Set.\\n bool plusOrMinus = tree.nodes[treeIndex] <= _value;\\n uint plusOrMinusValue = plusOrMinus ? _value - tree.nodes[treeIndex] : tree.nodes[treeIndex] - _value;\\n tree.nodes[treeIndex] = _value;\\n\\n updateParents(self, _key, treeIndex, plusOrMinus, plusOrMinusValue);\\n }\\n }\\n }\\n\\n /* internal Views */\\n\\n /**\\n * @dev Query the leaves of a tree. Note that if `startIndex == 0`, the tree is empty and the root node will be returned.\\n * @param _key The key of the tree to get the leaves from.\\n * @param _cursor The pagination cursor.\\n * @param _count The number of items to return.\\n * @return startIndex The index at which leaves start\\n * @return values The values of the returned leaves\\n * @return hasMore Whether there are more for pagination.\\n * `O(n)` where\\n * `n` is the maximum number of nodes ever appended.\\n */\\n function queryLeafs(\\n SortitionSumTrees storage self,\\n bytes32 _key,\\n uint _cursor,\\n uint _count\\n ) internal view returns(uint startIndex, uint[] memory values, bool hasMore) {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n\\n // Find the start index.\\n for (uint i = 0; i < tree.nodes.length; i++) {\\n if ((tree.K * i) + 1 >= tree.nodes.length) {\\n startIndex = i;\\n break;\\n }\\n }\\n\\n // Get the values.\\n uint loopStartIndex = startIndex + _cursor;\\n values = new uint[](loopStartIndex + _count > tree.nodes.length ? tree.nodes.length - loopStartIndex : _count);\\n uint valuesIndex = 0;\\n for (uint j = loopStartIndex; j < tree.nodes.length; j++) {\\n if (valuesIndex < _count) {\\n values[valuesIndex] = tree.nodes[j];\\n valuesIndex++;\\n } else {\\n hasMore = true;\\n break;\\n }\\n }\\n }\\n\\n /**\\n * @dev Draw an ID from a tree using a number. Note that this function reverts if the sum of all values in the tree is 0.\\n * @param _key The key of the tree.\\n * @param _drawnNumber The drawn number.\\n * @return ID The drawn ID.\\n * `O(k * log_k(n))` where\\n * `k` is the maximum number of childs per node in the tree,\\n * and `n` is the maximum number of nodes ever appended.\\n */\\n function draw(SortitionSumTrees storage self, bytes32 _key, uint _drawnNumber) internal view returns(bytes32 ID) {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n uint treeIndex = 0;\\n uint currentDrawnNumber = _drawnNumber % tree.nodes[0];\\n\\n while ((tree.K * treeIndex) + 1 < tree.nodes.length) // While it still has children.\\n for (uint i = 1; i <= tree.K; i++) { // Loop over children.\\n uint nodeIndex = (tree.K * treeIndex) + i;\\n uint nodeValue = tree.nodes[nodeIndex];\\n\\n if (currentDrawnNumber >= nodeValue) currentDrawnNumber -= nodeValue; // Go to the next child.\\n else { // Pick this child.\\n treeIndex = nodeIndex;\\n break;\\n }\\n }\\n \\n ID = tree.nodeIndexesToIDs[treeIndex];\\n }\\n\\n /** @dev Gets a specified ID's associated value.\\n * @param _key The key of the tree.\\n * @param _ID The ID of the value.\\n * @return value The associated value.\\n */\\n function stakeOf(SortitionSumTrees storage self, bytes32 _key, bytes32 _ID) internal view returns(uint value) {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n uint treeIndex = tree.IDsToNodeIndexes[_ID];\\n\\n if (treeIndex == 0) value = 0;\\n else value = tree.nodes[treeIndex];\\n }\\n\\n function total(SortitionSumTrees storage self, bytes32 _key) internal view returns (uint) {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n if (tree.nodes.length == 0) {\\n return 0;\\n } else {\\n return tree.nodes[0];\\n }\\n }\\n\\n /* Private */\\n\\n /**\\n * @dev Update all the parents of a node.\\n * @param _key The key of the tree to update.\\n * @param _treeIndex The index of the node to start from.\\n * @param _plusOrMinus Wether to add (true) or substract (false).\\n * @param _value The value to add or substract.\\n * `O(log_k(n))` where\\n * `k` is the maximum number of childs per node in the tree,\\n * and `n` is the maximum number of nodes ever appended.\\n */\\n function updateParents(SortitionSumTrees storage self, bytes32 _key, uint _treeIndex, bool _plusOrMinus, uint _value) private {\\n SortitionSumTree storage tree = self.sortitionSumTrees[_key];\\n\\n uint parentIndex = _treeIndex;\\n while (parentIndex != 0) {\\n parentIndex = (parentIndex - 1) / tree.K;\\n tree.nodes[parentIndex] = _plusOrMinus ? tree.nodes[parentIndex] + _value : tree.nodes[parentIndex] - _value;\\n }\\n }\\n}\\n\",\"keccak256\":\"0xa20ece2e1ddeaa6432549a7c38cd02594000b93a54b92399b89bae0dd76dbc7e\"}},\"version\":1}",
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"devdoc": {
"kind": "dev",
"methods": {},
"version": 1
},
"userdoc": {
"kind": "user",
"methods": {},
"version": 1
},
"storageLayout": {
"storage": [
{
"astId": 5786,
"contract": "contracts/builders/ControlledTokenBuilder.sol:ControlledTokenBuilder",
"label": "controlledTokenProxyFactory",
"offset": 0,
"slot": "0",
"type": "t_contract(ControlledTokenProxyFactory)16107"
},
{
"astId": 5788,
"contract": "contracts/builders/ControlledTokenBuilder.sol:ControlledTokenBuilder",
"label": "ticketProxyFactory",
"offset": 0,
"slot": "1",
"type": "t_contract(TicketProxyFactory)16410"
}
],
"types": {
"t_contract(ControlledTokenProxyFactory)16107": {
"encoding": "inplace",
"label": "contract ControlledTokenProxyFactory",
"numberOfBytes": "20"
},
"t_contract(TicketProxyFactory)16410": {
"encoding": "inplace",
"label": "contract TicketProxyFactory",
"numberOfBytes": "20"
}
}
}
}