| { | |
| "language": "Solidity", | |
| "sources": { | |
| "contracts/ERC1155V1/DiscordBoundTokens.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * 1155V1___________________________________________________________________________________\n *\n */\n\nimport \"contracts/BaseToken/BaseTokenV2.sol\";\nimport \"contracts/BaseToken/BaseERC1155V1.sol\";\nimport \"contracts/Mixins/ERC1155AuthorizerV1.sol\";\n\n/**\n * @title Discordbound Tokens ERC1155 Smart Contract\n */\ncontract DiscordboundTokens is BaseERC1155V1, BaseTokenV2, ERC1155AuthorizerV1 {\n uint256 public constant MINT_LIMIT_PER_ADDRESS = 1;\n uint256 public constant PRICE = 0 ether;\n\n mapping(uint256 => bool) public qualifiedNonceList;\n mapping(uint256 => mapping(address => uint256)) public qualifiedWalletList;\n\n constructor(\n string memory name_,\n string memory symbol_,\n string memory contractURI_,\n string memory uri_,\n address authorizerAddress_\n )\n ERC1155(uri_)\n BaseTokenV2(contractURI_)\n ERC1155AuthorizerV1(authorizerAddress_)\n {\n _name = name_;\n _symbol = symbol_;\n }\n\n function qualifiedMint(\n uint256 id_,\n uint256 amount_,\n bytes memory signature_,\n uint256 nonce_\n ) external payable nonReentrant onlySaleIsActive {\n require(!qualifiedNonceList[nonce_], \"Access nonce not owned\");\n require(\n qualifiedWalletList[id_][msg.sender] + amount_ <=\n MINT_LIMIT_PER_ADDRESS,\n \"Minting limit exceeded\"\n );\n require(PRICE * amount_ <= msg.value, \"Insufficient payment\");\n\n requireRecovery(msg.sender, nonce_, id_, signature_);\n\n qualifiedNonceList[nonce_] = true;\n qualifiedWalletList[id_][msg.sender] += amount_;\n\n _mint(msg.sender, id_, amount_, \"\");\n }\n\n /**\n * @dev Owner of the contract can mints to the address based on the amount and id.\n */\n function ownerMint(\n address address_,\n uint256 id_,\n uint256 amount_\n ) external onlyOwner {\n _mint(address_, id_, amount_, \"\");\n }\n\n function _beforeTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual override {\n super._beforeTokenTransfer(operator, from, to, ids, amounts, data);\n // Ignore transfers during minting\n if (from == address(0)) {\n return;\n }\n // Ignore transfers during burning\n if (to == address(0)) {\n return;\n }\n require(from == to, \"ERC1155Soulbound: Cannot transfer tokens.\");\n }\n\n function burn(\n address from_,\n uint256 id_,\n uint256 amount_\n ) external {\n require(\n from_ == _msgSender() || isApprovedForAll(from_, _msgSender()),\n \"ERC1155: caller is not token owner nor approved\"\n );\n\n _burn(from_, id_, amount_);\n }\n}\n" | |
| }, | |
| "contracts/BaseToken/BaseTokenV2.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * BASE_TOKEN_______________________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"contracts/Mixins/ActivatableV1.sol\";\nimport \"contracts/Mixins/DistributableV1.sol\";\nimport \"contracts/Mixins/ContractURIV2.sol\";\n\ncontract BaseTokenV2 is ActivatableV1, ContractURIV2, ReentrancyGuard {\n event PaymentReceived(address from, uint256 amount);\n\n constructor(string memory contractURI_) ContractURIV2(contractURI_) {}\n\n /** PAYABLE **/\n\n /**\n * @dev Allows the contract to receive ether.\n */\n receive() external payable virtual {\n emit PaymentReceived(_msgSender(), msg.value);\n }\n}\n" | |
| }, | |
| "contracts/BaseToken/BaseERC1155V1.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * BASE_ERC1155_____________________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol\";\n\nabstract contract BaseERC1155V1 is ERC1155Supply, Ownable {\n string public _name;\n string public _symbol;\n\n function setBaseURI(string memory baseURI_) external onlyOwner {\n _setURI(baseURI_);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function _beforeTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual override(ERC1155Supply) {\n super._beforeTokenTransfer(operator, from, to, ids, amounts, data);\n }\n}\n" | |
| }, | |
| "contracts/Mixins/ERC1155AuthorizerV1.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * AUTHORIZER_______________________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/utils/cryptography/ECDSA.sol\";\n\ncontract ERC1155AuthorizerV1 is Ownable {\n address private authorizerAddress;\n\n constructor(address authorizerAddress_) {\n authorizerAddress = authorizerAddress_;\n }\n\n /**\n * @dev Requires ECFSA recovery of a sender, nonce, tokenId, and signature\n */\n function requireRecovery(\n address sender,\n uint256 nonce_,\n uint256 tokenId_,\n bytes memory signature_\n ) internal view {\n bytes32 hash = keccak256(abi.encodePacked(sender, nonce_, tokenId_));\n bytes32 message = ECDSA.toEthSignedMessageHash(hash);\n\n require(\n ECDSA.recover(message, signature_) == authorizerAddress,\n \"Bad signature\"\n );\n }\n\n /**\n * @dev The address of the authorizer.\n */\n function authorizer() public view returns (address) {\n return authorizerAddress;\n }\n\n /**\n * @dev Sets the address of the authorizer.\n */\n function setAuthorizerAddress(address address_) external onlyOwner {\n authorizerAddress = address_;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/security/ReentrancyGuard.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n // On the first call to nonReentrant, _notEntered will be true\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n\n _;\n\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n}\n" | |
| }, | |
| "contracts/Mixins/ActivatableV1.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * ACTIVATABLE______________________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\n\ncontract ActivatableV1 is Ownable {\n bool public saleIsActive = false;\n\n modifier onlySaleIsActive() {\n require(saleIsActive, \"Sale not active\");\n _;\n }\n\n /**\n * @dev Enables or disables the minting process.\n */\n function setSaleIsActive(bool saleIsActive_) external onlyOwner {\n saleIsActive = saleIsActive_;\n }\n}\n" | |
| }, | |
| "contracts/Mixins/DistributableV1.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * DISTRIBUTABLE____________________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/utils/Address.sol\";\n\ncontract DistributableV1 is Ownable {\n address private distributorAddress;\n\n constructor(address distributorAddress_) {\n distributorAddress = distributorAddress_;\n }\n\n /**\n * @dev Withdraws the balance to the distribution address.\n */\n function withdraw() external onlyOwner {\n uint256 balance = address(this).balance;\n Address.sendValue(payable(distributorAddress), balance);\n }\n\n /**\n * @dev The address of the distributor.\n */\n function distributor() public view returns (address) {\n return distributorAddress;\n }\n\n /**\n * @dev Sets the address of the distributor.\n */\n function setDistributorAddress(address address_) external onlyOwner {\n distributorAddress = address_;\n }\n}\n" | |
| }, | |
| "contracts/Mixins/ContractURIV2.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\n/**\n *\n * _______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__/\\\\\\\\\\_____/\\\\\\_____/\\\\\\\\\\\\\\\\\\\\__\n * _____/\\\\\\///\\\\\\____\\/\\\\\\/////////\\\\\\_\\/\\\\\\///////////__\\/\\\\\\\\\\\\___\\/\\\\\\___/\\\\\\///////\\\\\\_\n * ___/\\\\\\/__\\///\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\/\\\\\\__\\/\\\\\\__\\///______/\\\\\\__\n * __/\\\\\\______\\//\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\\\\\\\\\\\\\\\_____\\/\\\\\\//\\\\\\_\\/\\\\\\_________/\\\\\\//___\n * _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\/////////____\\/\\\\\\///////______\\/\\\\\\\\//\\\\\\\\/\\\\\\________\\////\\\\\\__\n * _\\//\\\\\\______/\\\\\\__\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\_\\//\\\\\\/\\\\\\___________\\//\\\\\\_\n * __\\///\\\\\\__/\\\\\\____\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__\\//\\\\\\\\\\\\__/\\\\\\______/\\\\\\__\n * ____\\///\\\\\\\\\\/_____\\/\\\\\\_____________\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_\\/\\\\\\___\\//\\\\\\\\\\_\\///\\\\\\\\\\\\\\\\\\/___\n * ______\\/////_______\\///______________\\///////////////__\\///_____\\/////____\\/////////_____\n * CONTRACT_URI__________________________________________________________________\n *\n */\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\n\ncontract ContractURIV2 is Ownable {\n string private _contractURI;\n\n constructor(string memory contractURI_) {\n _contractURI = contractURI_;\n }\n\n /**\n * @dev Sets the contract URI.\n */\n function setContractURI(string memory contractURI_) external onlyOwner {\n _contractURI = contractURI_;\n }\n\n /**\n * @dev Gets the contract URI.\n */\n function contractURI() public view returns (string memory) {\n return _contractURI;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/access/Ownable.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/Context.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\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 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 Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/Address.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\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 * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 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 (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(\n address target,\n bytes memory data,\n string memory errorMessage\n ) 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(\n address target,\n bytes memory data,\n uint256 value\n ) 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(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) 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 (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(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal 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 /// @solidity memory-safe-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" | |
| }, | |
| "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC1155/extensions/ERC1155Supply.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC1155.sol\";\n\n/**\n * @dev Extension of ERC1155 that adds tracking of total supply per id.\n *\n * Useful for scenarios where Fungible and Non-fungible tokens have to be\n * clearly identified. Note: While a totalSupply of 1 might mean the\n * corresponding is an NFT, there is no guarantees that no other token with the\n * same id are not going to be minted.\n */\nabstract contract ERC1155Supply is ERC1155 {\n mapping(uint256 => uint256) private _totalSupply;\n\n /**\n * @dev Total amount of tokens in with a given id.\n */\n function totalSupply(uint256 id) public view virtual returns (uint256) {\n return _totalSupply[id];\n }\n\n /**\n * @dev Indicates whether any token exist with a given id, or not.\n */\n function exists(uint256 id) public view virtual returns (bool) {\n return ERC1155Supply.totalSupply(id) > 0;\n }\n\n /**\n * @dev See {ERC1155-_beforeTokenTransfer}.\n */\n function _beforeTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual override {\n super._beforeTokenTransfer(operator, from, to, ids, amounts, data);\n\n if (from == address(0)) {\n for (uint256 i = 0; i < ids.length; ++i) {\n _totalSupply[ids[i]] += amounts[i];\n }\n }\n\n if (to == address(0)) {\n for (uint256 i = 0; i < ids.length; ++i) {\n uint256 id = ids[i];\n uint256 amount = amounts[i];\n uint256 supply = _totalSupply[id];\n require(supply >= amount, \"ERC1155: burn amount exceeds totalSupply\");\n unchecked {\n _totalSupply[id] = supply - amount;\n }\n }\n }\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC1155/ERC1155.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/ERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC1155.sol\";\nimport \"./IERC1155Receiver.sol\";\nimport \"./extensions/IERC1155MetadataURI.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of the basic standard multi-token.\n * See https://eips.ethereum.org/EIPS/eip-1155\n * Originally based on code by Enjin: https://github.com/enjin/erc-1155\n *\n * _Available since v3.1._\n */\ncontract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {\n using Address for address;\n\n // Mapping from token ID to account balances\n mapping(uint256 => mapping(address => uint256)) private _balances;\n\n // Mapping from account to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json\n string private _uri;\n\n /**\n * @dev See {_setURI}.\n */\n constructor(string memory uri_) {\n _setURI(uri_);\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC1155).interfaceId ||\n interfaceId == type(IERC1155MetadataURI).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC1155MetadataURI-uri}.\n *\n * This implementation returns the same URI for *all* token types. It relies\n * on the token type ID substitution mechanism\n * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].\n *\n * Clients calling this function must replace the `\\{id\\}` substring with the\n * actual token type ID.\n */\n function uri(uint256) public view virtual override returns (string memory) {\n return _uri;\n }\n\n /**\n * @dev See {IERC1155-balanceOf}.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {\n require(account != address(0), \"ERC1155: address zero is not a valid owner\");\n return _balances[id][account];\n }\n\n /**\n * @dev See {IERC1155-balanceOfBatch}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] memory accounts, uint256[] memory ids)\n public\n view\n virtual\n override\n returns (uint256[] memory)\n {\n require(accounts.length == ids.length, \"ERC1155: accounts and ids length mismatch\");\n\n uint256[] memory batchBalances = new uint256[](accounts.length);\n\n for (uint256 i = 0; i < accounts.length; ++i) {\n batchBalances[i] = balanceOf(accounts[i], ids[i]);\n }\n\n return batchBalances;\n }\n\n /**\n * @dev See {IERC1155-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC1155-isApprovedForAll}.\n */\n function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[account][operator];\n }\n\n /**\n * @dev See {IERC1155-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) public virtual override {\n require(\n from == _msgSender() || isApprovedForAll(from, _msgSender()),\n \"ERC1155: caller is not token owner nor approved\"\n );\n _safeTransferFrom(from, to, id, amount, data);\n }\n\n /**\n * @dev See {IERC1155-safeBatchTransferFrom}.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) public virtual override {\n require(\n from == _msgSender() || isApprovedForAll(from, _msgSender()),\n \"ERC1155: caller is not token owner nor approved\"\n );\n _safeBatchTransferFrom(from, to, ids, amounts, data);\n }\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function _safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: transfer to the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, from, to, ids, amounts, data);\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: insufficient balance for transfer\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n _balances[id][to] += amount;\n\n emit TransferSingle(operator, from, to, id, amount);\n\n _afterTokenTransfer(operator, from, to, ids, amounts, data);\n\n _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function _safeBatchTransferFrom(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n require(to != address(0), \"ERC1155: transfer to the zero address\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, from, to, ids, amounts, data);\n\n for (uint256 i = 0; i < ids.length; ++i) {\n uint256 id = ids[i];\n uint256 amount = amounts[i];\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: insufficient balance for transfer\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n _balances[id][to] += amount;\n }\n\n emit TransferBatch(operator, from, to, ids, amounts);\n\n _afterTokenTransfer(operator, from, to, ids, amounts, data);\n\n _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);\n }\n\n /**\n * @dev Sets a new URI for all token types, by relying on the token type ID\n * substitution mechanism\n * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].\n *\n * By this mechanism, any occurrence of the `\\{id\\}` substring in either the\n * URI or any of the amounts in the JSON file at said URI will be replaced by\n * clients with the token type ID.\n *\n * For example, the `https://token-cdn-domain/\\{id\\}.json` URI would be\n * interpreted by clients as\n * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`\n * for token type ID 0x4cce0.\n *\n * See {uri}.\n *\n * Because these URIs cannot be meaningfully represented by the {URI} event,\n * this function emits no events.\n */\n function _setURI(string memory newuri) internal virtual {\n _uri = newuri;\n }\n\n /**\n * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function _mint(\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: mint to the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _balances[id][to] += amount;\n emit TransferSingle(operator, address(0), to, id, amount);\n\n _afterTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function _mintBatch(\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: mint to the zero address\");\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n for (uint256 i = 0; i < ids.length; i++) {\n _balances[ids[i]][to] += amounts[i];\n }\n\n emit TransferBatch(operator, address(0), to, ids, amounts);\n\n _afterTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);\n }\n\n /**\n * @dev Destroys `amount` tokens of token type `id` from `from`\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `from` must have at least `amount` tokens of token type `id`.\n */\n function _burn(\n address from,\n uint256 id,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC1155: burn from the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: burn amount exceeds balance\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n\n emit TransferSingle(operator, from, address(0), id, amount);\n\n _afterTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n */\n function _burnBatch(\n address from,\n uint256[] memory ids,\n uint256[] memory amounts\n ) internal virtual {\n require(from != address(0), \"ERC1155: burn from the zero address\");\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n\n for (uint256 i = 0; i < ids.length; i++) {\n uint256 id = ids[i];\n uint256 amount = amounts[i];\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: burn amount exceeds balance\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n }\n\n emit TransferBatch(operator, from, address(0), ids, amounts);\n\n _afterTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC1155: setting approval status for self\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning, as well as batched variants.\n *\n * The same hook is called on both single and batched variants. For single\n * transfers, the length of the `ids` and `amounts` arrays will be 1.\n *\n * Calling conditions (for each `id` and `amount` pair):\n *\n * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * of token type `id` will be transferred to `to`.\n * - When `from` is zero, `amount` tokens of token type `id` will be minted\n * for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`\n * will be burned.\n * - `from` and `to` are never both zero.\n * - `ids` and `amounts` have the same, non-zero length.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any token transfer. This includes minting\n * and burning, as well as batched variants.\n *\n * The same hook is called on both single and batched variants. For single\n * transfers, the length of the `id` and `amount` arrays will be 1.\n *\n * Calling conditions (for each `id` and `amount` pair):\n *\n * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * of token type `id` will be transferred to `to`.\n * - When `from` is zero, `amount` tokens of token type `id` will be minted\n * for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`\n * will be burned.\n * - `from` and `to` are never both zero.\n * - `ids` and `amounts` have the same, non-zero length.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n function _doSafeTransferAcceptanceCheck(\n address operator,\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) private {\n if (to.isContract()) {\n try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {\n if (response != IERC1155Receiver.onERC1155Received.selector) {\n revert(\"ERC1155: ERC1155Receiver rejected tokens\");\n }\n } catch Error(string memory reason) {\n revert(reason);\n } catch {\n revert(\"ERC1155: transfer to non ERC1155Receiver implementer\");\n }\n }\n }\n\n function _doSafeBatchTransferAcceptanceCheck(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) private {\n if (to.isContract()) {\n try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (\n bytes4 response\n ) {\n if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {\n revert(\"ERC1155: ERC1155Receiver rejected tokens\");\n }\n } catch Error(string memory reason) {\n revert(reason);\n } catch {\n revert(\"ERC1155: transfer to non ERC1155Receiver implementer\");\n }\n }\n }\n\n function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n\n return array;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n /**\n * @dev Handles the receipt of a single ERC1155 token type. This function is\n * called at the end of a `safeTransferFrom` after the balance has been updated.\n *\n * NOTE: To accept the transfer, this must return\n * `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n * (i.e. 0xf23a6e61, or its own function selector).\n *\n * @param operator The address which initiated the transfer (i.e. msg.sender)\n * @param from The address which previously owned the token\n * @param id The ID of the token being transferred\n * @param value The amount of tokens being transferred\n * @param data Additional data with no specified format\n * @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n */\n function onERC1155Received(\n address operator,\n address from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external returns (bytes4);\n\n /**\n * @dev Handles the receipt of a multiple ERC1155 token types. This function\n * is called at the end of a `safeBatchTransferFrom` after the balances have\n * been updated.\n *\n * NOTE: To accept the transfer(s), this must return\n * `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n * (i.e. 0xbc197c81, or its own function selector).\n *\n * @param operator The address which initiated the batch transfer (i.e. msg.sender)\n * @param from The address which previously owned the token\n * @param ids An array containing ids of each token being transferred (order and length must match values array)\n * @param values An array containing amounts of each token being transferred (order and length must match ids array)\n * @param data Additional data with no specified format\n * @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n */\n function onERC1155BatchReceived(\n address operator,\n address from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external returns (bytes4);\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155.sol\";\n\n/**\n * @dev Interface of the optional ERC1155MetadataExtension interface, as defined\n * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155MetadataURI is IERC1155 {\n /**\n * @dev Returns the URI for token type `id`.\n *\n * If the `\\{id\\}` substring is present in the URI, it must be replaced by\n * clients with the actual token type ID.\n */\n function uri(uint256 id) external view returns (string memory);\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/introspection/ERC165.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/introspection/IERC165.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/cryptography/ECDSA.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.3) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../Strings.sol\";\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 ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS,\n InvalidSignatureV\n }\n\n function _throwError(RecoverError error) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert(\"ECDSA: invalid signature\");\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert(\"ECDSA: invalid signature length\");\n } else if (error == RecoverError.InvalidSignatureS) {\n revert(\"ECDSA: invalid signature 's' value\");\n } else if (error == RecoverError.InvalidSignatureV) {\n revert(\"ECDSA: invalid signature 'v' value\");\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature` or error string. 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 * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-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 return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength);\n }\n }\n\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 (address recovered, RecoverError error) = tryRecover(hash, signature);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address, RecoverError) {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n *\n * _Available since v4.2._\n */\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError) {\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 (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {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 if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS);\n }\n if (v != 27 && v != 28) {\n return (address(0), RecoverError.InvalidSignatureV);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature);\n }\n\n return (signer, RecoverError.NoError);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\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 /**\n * @dev Returns an Ethereum Signed Message, created from `s`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/Strings.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n" | |
| } | |
| }, | |
| "settings": { | |
| "optimizer": { | |
| "enabled": true, | |
| "runs": 250 | |
| }, | |
| "outputSelection": { | |
| "*": { | |
| "*": [ | |
| "evm.bytecode", | |
| "evm.deployedBytecode", | |
| "devdoc", | |
| "userdoc", | |
| "metadata", | |
| "abi" | |
| ] | |
| } | |
| }, | |
| "metadata": { | |
| "useLiteralContent": true | |
| }, | |
| "libraries": {} | |
| } | |
| } |