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TokenTracker
Latest 25 from a total of 368 transactions
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Set Approval For... | 4022333 | 29 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 4015087 | 33 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 4014955 | 33 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 4014818 | 33 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 4014749 | 33 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 4014733 | 33 hrs ago | IN | 0 BERA | 0 | ||||
Safe Transfer Fr... | 3991690 | 45 hrs ago | IN | 0 BERA | 0.00000017 | ||||
Set Approval For... | 3976010 | 2 days ago | IN | 0 BERA | 0.00000103 | ||||
Set Approval For... | 3966602 | 2 days ago | IN | 0 BERA | 0.00000003 | ||||
Set Approval For... | 3959890 | 2 days ago | IN | 0 BERA | 0.00000007 | ||||
Set Approval For... | 3958957 | 2 days ago | IN | 0 BERA | 0.00000008 | ||||
Set Approval For... | 3947360 | 2 days ago | IN | 0 BERA | 0.00000017 | ||||
Set Approval For... | 3925961 | 3 days ago | IN | 0 BERA | 0.00124437 | ||||
Set Approval For... | 3911228 | 3 days ago | IN | 0 BERA | 0.00000035 | ||||
Set Approval For... | 3863649 | 4 days ago | IN | 0 BERA | 0.00000054 | ||||
Set Approval For... | 3855285 | 5 days ago | IN | 0 BERA | 0.00000022 | ||||
Set Approval For... | 3847627 | 5 days ago | IN | 0 BERA | 0.00000006 | ||||
Set Approval For... | 3846143 | 5 days ago | IN | 0 BERA | 0.0000001 | ||||
Set Approval For... | 3836903 | 5 days ago | IN | 0 BERA | 0.00000002 | ||||
Set Approval For... | 3814221 | 5 days ago | IN | 0 BERA | 0.00000006 | ||||
Set Approval For... | 3489328 | 13 days ago | IN | 0 BERA | 0.00000012 | ||||
Set Approval For... | 3488770 | 13 days ago | IN | 0 BERA | 0.00000024 | ||||
Set Approval For... | 3484974 | 13 days ago | IN | 0 BERA | 0.00021552 | ||||
Set Approval For... | 3425295 | 14 days ago | IN | 0 BERA | 0.00000035 | ||||
Set Approval For... | 3424383 | 14 days ago | IN | 0 BERA | 0.0000007 |
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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0xf5323042...6FC7D546C The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
HenloTheGameCollection
Compiler Version
v0.8.25+commit.b61c2a91
Optimization Enabled:
Yes with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import "@solady/tokens/ERC1155.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; /// @title HenloTheGameCollection - A non-transferable ERC1155 collection /// @notice This contract manages a collection of non-transferable tokens for Henlo The Game /// @dev Inherits from ERC1155, Pausable, and AccessControl contract HenloTheGameCollection is ERC1155, AccessControl { /// @notice Role identifier for addresses that can mint tokens /// @dev Set to bytes32(uint256(0x01)) bytes32 public constant MINTER = bytes32(uint256(0x01)); /// @notice Mapping of token IDs to their respective URIs mapping(uint256 => string) uris; /// @notice Maximum allowed token ID is MAX_ID - 1 /// @dev Used to restrict the range of valid token types uint256 public MAX_ID; error TransferDisabled(); constructor() ERC1155() { _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); _grantRole(MINTER, msg.sender); MAX_ID = 3; } /// @notice Mints a new token to the specified account /// @dev Only callable by addresses with MINTER role /// @param account The address that will receive the minted token /// @param id The token ID to mint (must be less than MAX_ID) /// @param data Additional data to pass to the mint function function mint(address account, uint256 id, bytes memory data) external onlyRole(MINTER) { require(id < MAX_ID, "Invalid collection type"); _mint(account, id, 1, data); } function uri(uint256 id) public view override returns (string memory) { return uris[id]; } /// @notice Sets the URI for a specific token ID /// @dev Only callable by addresses with DEFAULT_ADMIN_ROLE /// @param _id The token ID to set the URI for /// @param _uri The new URI to set function setUri(uint256 _id, string calldata _uri) external onlyRole(DEFAULT_ADMIN_ROLE) { uris[_id] = _uri; emit URI(_uri, _id); } /// @notice Updates the maximum allowed token ID /// @dev Only callable by addresses with DEFAULT_ADMIN_ROLE /// @param _maxId The exclusice upper boundary for valid token IDs function setMaxId(uint256 _maxId) external onlyRole(DEFAULT_ADMIN_ROLE) { MAX_ID = _maxId; } function _useBeforeTokenTransfer() internal pure override returns (bool) { return true; } function _beforeTokenTransfer(address from, address, uint256[] memory, uint256[] memory, bytes memory) internal pure override { if (from != address(0)) { revert TransferDisabled(); } } function supportsInterface(bytes4 interfaceId) public view override(ERC1155, AccessControl) returns (bool result) { return ERC1155.supportsInterface(interfaceId) || AccessControl.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Simple ERC1155 implementation. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC1155.sol) /// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC1155.sol) /// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC1155/ERC1155.sol) /// /// @dev Note: /// - The ERC1155 standard allows for self-approvals. /// For performance, this implementation WILL NOT revert for such actions. /// Please add any checks with overrides if desired. /// - The transfer functions use the identity precompile (0x4) /// to copy memory internally. /// /// If you are overriding: /// - Make sure all variables written to storage are properly cleaned // (e.g. the bool value for `isApprovedForAll` MUST be either 1 or 0 under the hood). /// - Check that the overridden function is actually used in the function you want to /// change the behavior of. Much of the code has been manually inlined for performance. abstract contract ERC1155 { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The lengths of the input arrays are not the same. error ArrayLengthsMismatch(); /// @dev Cannot mint or transfer to the zero address. error TransferToZeroAddress(); /// @dev The recipient's balance has overflowed. error AccountBalanceOverflow(); /// @dev Insufficient balance. error InsufficientBalance(); /// @dev Only the token owner or an approved account can manage the tokens. error NotOwnerNorApproved(); /// @dev Cannot safely transfer to a contract that does not implement /// the ERC1155Receiver interface. error TransferToNonERC1155ReceiverImplementer(); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* EVENTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Emitted when `amount` of token `id` is transferred /// from `from` to `to` by `operator`. event TransferSingle( address indexed operator, address indexed from, address indexed to, uint256 id, uint256 amount ); /// @dev Emitted when `amounts` of token `ids` are transferred /// from `from` to `to` by `operator`. event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] amounts ); /// @dev Emitted when `owner` enables or disables `operator` to manage all of their tokens. event ApprovalForAll(address indexed owner, address indexed operator, bool isApproved); /// @dev Emitted when the Uniform Resource Identifier (URI) for token `id` /// is updated to `value`. This event is not used in the base contract. /// You may need to emit this event depending on your URI logic. /// /// See: https://eips.ethereum.org/EIPS/eip-1155#metadata event URI(string value, uint256 indexed id); /// @dev `keccak256(bytes("TransferSingle(address,address,address,uint256,uint256)"))`. uint256 private constant _TRANSFER_SINGLE_EVENT_SIGNATURE = 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62; /// @dev `keccak256(bytes("TransferBatch(address,address,address,uint256[],uint256[])"))`. uint256 private constant _TRANSFER_BATCH_EVENT_SIGNATURE = 0x4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb; /// @dev `keccak256(bytes("ApprovalForAll(address,address,bool)"))`. uint256 private constant _APPROVAL_FOR_ALL_EVENT_SIGNATURE = 0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* STORAGE */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The `ownerSlotSeed` of a given owner is given by. /// ``` /// let ownerSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner)) /// ``` /// /// The balance slot of `owner` is given by. /// ``` /// mstore(0x20, ownerSlotSeed) /// mstore(0x00, id) /// let balanceSlot := keccak256(0x00, 0x40) /// ``` /// /// The operator approval slot of `owner` is given by. /// ``` /// mstore(0x20, ownerSlotSeed) /// mstore(0x00, operator) /// let operatorApprovalSlot := keccak256(0x0c, 0x34) /// ``` uint256 private constant _ERC1155_MASTER_SLOT_SEED = 0x9a31110384e0b0c9; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ERC1155 METADATA */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns the URI for token `id`. /// /// You can either return the same templated URI for all token IDs, /// (e.g. "https://example.com/api/{id}.json"), /// or return a unique URI for each `id`. /// /// See: https://eips.ethereum.org/EIPS/eip-1155#metadata function uri(uint256 id) public view virtual returns (string memory); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ERC1155 */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns the amount of `id` owned by `owner`. function balanceOf(address owner, uint256 id) public view virtual returns (uint256 result) { /// @solidity memory-safe-assembly assembly { mstore(0x20, _ERC1155_MASTER_SLOT_SEED) mstore(0x14, owner) mstore(0x00, id) result := sload(keccak256(0x00, 0x40)) } } /// @dev Returns whether `operator` is approved to manage the tokens of `owner`. function isApprovedForAll(address owner, address operator) public view virtual returns (bool result) { /// @solidity memory-safe-assembly assembly { mstore(0x20, _ERC1155_MASTER_SLOT_SEED) mstore(0x14, owner) mstore(0x00, operator) result := sload(keccak256(0x0c, 0x34)) } } /// @dev Sets whether `operator` is approved to manage the tokens of the caller. /// /// Emits a {ApprovalForAll} event. function setApprovalForAll(address operator, bool isApproved) public virtual { /// @solidity memory-safe-assembly assembly { // Convert to 0 or 1. isApproved := iszero(iszero(isApproved)) // Update the `isApproved` for (`msg.sender`, `operator`). mstore(0x20, _ERC1155_MASTER_SLOT_SEED) mstore(0x14, caller()) mstore(0x00, operator) sstore(keccak256(0x0c, 0x34), isApproved) // Emit the {ApprovalForAll} event. mstore(0x00, isApproved) // forgefmt: disable-next-line log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, caller(), shr(96, shl(96, operator))) } } /// @dev Transfers `amount` of `id` from `from` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - `from` must have at least `amount` of `id`. /// - If the caller is not `from`, /// it must be approved to manage the tokens of `from`. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155Received}, which is called upon a batch transfer. /// /// Emits a {TransferSingle} event. function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) public virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, to, _single(id), _single(amount), data); } /// @solidity memory-safe-assembly assembly { let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from)) let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to)) mstore(0x20, fromSlotSeed) // Clear the upper 96 bits. from := shr(96, fromSlotSeed) to := shr(96, toSlotSeed) // Revert if `to` is the zero address. if iszero(to) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } // If the caller is not `from`, do the authorization check. if iszero(eq(caller(), from)) { mstore(0x00, caller()) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Subtract and store the updated balance of `from`. { mstore(0x00, id) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } // Increase and store the updated balance of `to`. { mstore(0x20, toSlotSeed) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } // Emit a {TransferSingle} event. mstore(0x20, amount) log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), from, to) } if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, to, _single(id), _single(amount), data); } /// @solidity memory-safe-assembly assembly { // Do the {onERC1155Received} check if `to` is a smart contract. if extcodesize(to) { // Prepare the calldata. let m := mload(0x40) // `onERC1155Received(address,address,uint256,uint256,bytes)`. mstore(m, 0xf23a6e61) mstore(add(m, 0x20), caller()) mstore(add(m, 0x40), from) mstore(add(m, 0x60), id) mstore(add(m, 0x80), amount) mstore(add(m, 0xa0), 0xa0) mstore(add(m, 0xc0), data.length) calldatacopy(add(m, 0xe0), data.offset, data.length) // Revert if the call reverts. if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, data.length), m, 0x20)) { if returndatasize() { // Bubble up the revert if the call reverts. returndatacopy(m, 0x00, returndatasize()) revert(m, returndatasize()) } } // Load the returndata and compare it with the function selector. if iszero(eq(mload(m), shl(224, 0xf23a6e61))) { mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`. revert(0x1c, 0x04) } } } } /// @dev Transfers `amounts` of `ids` from `from` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - `from` must have at least `amount` of `id`. /// - `ids` and `amounts` must have the same length. /// - If the caller is not `from`, /// it must be approved to manage the tokens of `from`. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155BatchReceived}, which is called upon a batch transfer. /// /// Emits a {TransferBatch} event. function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) public virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, to, ids, amounts, data); } /// @solidity memory-safe-assembly assembly { if iszero(eq(ids.length, amounts.length)) { mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`. revert(0x1c, 0x04) } let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from)) let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to)) mstore(0x20, fromSlotSeed) // Clear the upper 96 bits. from := shr(96, fromSlotSeed) to := shr(96, toSlotSeed) // Revert if `to` is the zero address. if iszero(to) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } // If the caller is not `from`, do the authorization check. if iszero(eq(caller(), from)) { mstore(0x00, caller()) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Loop through all the `ids` and update the balances. { for { let i := shl(5, ids.length) } i {} { i := sub(i, 0x20) let amount := calldataload(add(amounts.offset, i)) // Subtract and store the updated balance of `from`. { mstore(0x20, fromSlotSeed) mstore(0x00, calldataload(add(ids.offset, i))) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } // Increase and store the updated balance of `to`. { mstore(0x20, toSlotSeed) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } } } // Emit a {TransferBatch} event. { let m := mload(0x40) // Copy the `ids`. mstore(m, 0x40) let n := shl(5, ids.length) mstore(add(m, 0x40), ids.length) calldatacopy(add(m, 0x60), ids.offset, n) // Copy the `amounts`. mstore(add(m, 0x20), add(0x60, n)) let o := add(add(m, n), 0x60) mstore(o, ids.length) calldatacopy(add(o, 0x20), amounts.offset, n) // Do the emit. log4(m, add(add(n, n), 0x80), _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), from, to) } } if (_useAfterTokenTransfer()) { _afterTokenTransferCalldata(from, to, ids, amounts, data); } /// @solidity memory-safe-assembly assembly { // Do the {onERC1155BatchReceived} check if `to` is a smart contract. if extcodesize(to) { mstore(0x00, to) // Cache `to` to prevent stack too deep. let m := mload(0x40) // Prepare the calldata. // `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`. mstore(m, 0xbc197c81) mstore(add(m, 0x20), caller()) mstore(add(m, 0x40), from) // Copy the `ids`. mstore(add(m, 0x60), 0xa0) let n := shl(5, ids.length) mstore(add(m, 0xc0), ids.length) calldatacopy(add(m, 0xe0), ids.offset, n) // Copy the `amounts`. mstore(add(m, 0x80), add(0xc0, n)) let o := add(add(m, n), 0xe0) mstore(o, ids.length) calldatacopy(add(o, 0x20), amounts.offset, n) // Copy the `data`. mstore(add(m, 0xa0), add(add(0xe0, n), n)) o := add(add(o, n), 0x20) mstore(o, data.length) calldatacopy(add(o, 0x20), data.offset, data.length) let nAll := add(0x104, add(data.length, add(n, n))) // Revert if the call reverts. if iszero(call(gas(), mload(0x00), 0, add(mload(0x40), 0x1c), nAll, m, 0x20)) { if returndatasize() { // Bubble up the revert if the call reverts. returndatacopy(m, 0x00, returndatasize()) revert(m, returndatasize()) } } // Load the returndata and compare it with the function selector. if iszero(eq(mload(m), shl(224, 0xbc197c81))) { mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`. revert(0x1c, 0x04) } } } } /// @dev Returns the amounts of `ids` for `owners. /// /// Requirements: /// - `owners` and `ids` must have the same length. function balanceOfBatch(address[] calldata owners, uint256[] calldata ids) public view virtual returns (uint256[] memory balances) { /// @solidity memory-safe-assembly assembly { if iszero(eq(ids.length, owners.length)) { mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`. revert(0x1c, 0x04) } balances := mload(0x40) mstore(balances, ids.length) let o := add(balances, 0x20) let i := shl(5, ids.length) mstore(0x40, add(i, o)) // Loop through all the `ids` and load the balances. for {} i {} { i := sub(i, 0x20) let owner := calldataload(add(owners.offset, i)) mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner))) mstore(0x00, calldataload(add(ids.offset, i))) mstore(add(o, i), sload(keccak256(0x00, 0x40))) } } } /// @dev Returns true if this contract implements the interface defined by `interfaceId`. /// See: https://eips.ethereum.org/EIPS/eip-165 /// This function call must use less than 30000 gas. function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) { /// @solidity memory-safe-assembly assembly { let s := shr(224, interfaceId) // ERC165: 0x01ffc9a7, ERC1155: 0xd9b67a26, ERC1155MetadataURI: 0x0e89341c. result := or(or(eq(s, 0x01ffc9a7), eq(s, 0xd9b67a26)), eq(s, 0x0e89341c)) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL MINT FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Mints `amount` of `id` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155Received}, which is called upon a batch transfer. /// /// Emits a {TransferSingle} event. function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(address(0), to, _single(id), _single(amount), data); } /// @solidity memory-safe-assembly assembly { let to_ := shl(96, to) // Revert if `to` is the zero address. if iszero(to_) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } // Increase and store the updated balance of `to`. { mstore(0x20, _ERC1155_MASTER_SLOT_SEED) mstore(0x14, to) mstore(0x00, id) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } // Emit a {TransferSingle} event. mstore(0x20, amount) log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), 0, shr(96, to_)) } if (_useAfterTokenTransfer()) { _afterTokenTransfer(address(0), to, _single(id), _single(amount), data); } if (_hasCode(to)) _checkOnERC1155Received(address(0), to, id, amount, data); } /// @dev Mints `amounts` of `ids` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - `ids` and `amounts` must have the same length. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155BatchReceived}, which is called upon a batch transfer. /// /// Emits a {TransferBatch} event. function _batchMint( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(address(0), to, ids, amounts, data); } /// @solidity memory-safe-assembly assembly { if iszero(eq(mload(ids), mload(amounts))) { mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`. revert(0x1c, 0x04) } let to_ := shl(96, to) // Revert if `to` is the zero address. if iszero(to_) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } // Loop through all the `ids` and update the balances. { mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_)) for { let i := shl(5, mload(ids)) } i { i := sub(i, 0x20) } { let amount := mload(add(amounts, i)) // Increase and store the updated balance of `to`. { mstore(0x00, mload(add(ids, i))) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } } } // Emit a {TransferBatch} event. { let m := mload(0x40) // Copy the `ids`. mstore(m, 0x40) let n := add(0x20, shl(5, mload(ids))) let o := add(m, 0x40) pop(staticcall(gas(), 4, ids, n, o, n)) // Copy the `amounts`. mstore(add(m, 0x20), add(0x40, returndatasize())) o := add(o, returndatasize()) n := add(0x20, shl(5, mload(amounts))) pop(staticcall(gas(), 4, amounts, n, o, n)) n := sub(add(o, returndatasize()), m) // Do the emit. log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), 0, shr(96, to_)) } } if (_useAfterTokenTransfer()) { _afterTokenTransfer(address(0), to, ids, amounts, data); } if (_hasCode(to)) _checkOnERC1155BatchReceived(address(0), to, ids, amounts, data); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL BURN FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Equivalent to `_burn(address(0), from, id, amount)`. function _burn(address from, uint256 id, uint256 amount) internal virtual { _burn(address(0), from, id, amount); } /// @dev Destroys `amount` of `id` from `from`. /// /// Requirements: /// - `from` must have at least `amount` of `id`. /// - If `by` is not the zero address, it must be either `from`, /// or approved to manage the tokens of `from`. /// /// Emits a {TransferSingle} event. function _burn(address by, address from, uint256 id, uint256 amount) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, address(0), _single(id), _single(amount), ""); } /// @solidity memory-safe-assembly assembly { let from_ := shl(96, from) mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_)) // If `by` is not the zero address, and not equal to `from`, // check if it is approved to manage all the tokens of `from`. if iszero(or(iszero(shl(96, by)), eq(shl(96, by), from_))) { mstore(0x00, by) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Decrease and store the updated balance of `from`. { mstore(0x00, id) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } // Emit a {TransferSingle} event. mstore(0x20, amount) log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), 0) } if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, address(0), _single(id), _single(amount), ""); } } /// @dev Equivalent to `_batchBurn(address(0), from, ids, amounts)`. function _batchBurn(address from, uint256[] memory ids, uint256[] memory amounts) internal virtual { _batchBurn(address(0), from, ids, amounts); } /// @dev Destroys `amounts` of `ids` from `from`. /// /// Requirements: /// - `ids` and `amounts` must have the same length. /// - `from` must have at least `amounts` of `ids`. /// - If `by` is not the zero address, it must be either `from`, /// or approved to manage the tokens of `from`. /// /// Emits a {TransferBatch} event. function _batchBurn(address by, address from, uint256[] memory ids, uint256[] memory amounts) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, address(0), ids, amounts, ""); } /// @solidity memory-safe-assembly assembly { if iszero(eq(mload(ids), mload(amounts))) { mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`. revert(0x1c, 0x04) } let from_ := shl(96, from) mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_)) // If `by` is not the zero address, and not equal to `from`, // check if it is approved to manage all the tokens of `from`. let by_ := shl(96, by) if iszero(or(iszero(by_), eq(by_, from_))) { mstore(0x00, by) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Loop through all the `ids` and update the balances. { for { let i := shl(5, mload(ids)) } i { i := sub(i, 0x20) } { let amount := mload(add(amounts, i)) // Decrease and store the updated balance of `from`. { mstore(0x00, mload(add(ids, i))) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } } } // Emit a {TransferBatch} event. { let m := mload(0x40) // Copy the `ids`. mstore(m, 0x40) let n := add(0x20, shl(5, mload(ids))) let o := add(m, 0x40) pop(staticcall(gas(), 4, ids, n, o, n)) // Copy the `amounts`. mstore(add(m, 0x20), add(0x40, returndatasize())) o := add(o, returndatasize()) n := add(0x20, shl(5, mload(amounts))) pop(staticcall(gas(), 4, amounts, n, o, n)) n := sub(add(o, returndatasize()), m) // Do the emit. log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), 0) } } if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, address(0), ids, amounts, ""); } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL APPROVAL FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Approve or remove the `operator` as an operator for `by`, /// without authorization checks. /// /// Emits a {ApprovalForAll} event. function _setApprovalForAll(address by, address operator, bool isApproved) internal virtual { /// @solidity memory-safe-assembly assembly { // Convert to 0 or 1. isApproved := iszero(iszero(isApproved)) // Update the `isApproved` for (`by`, `operator`). mstore(0x20, _ERC1155_MASTER_SLOT_SEED) mstore(0x14, by) mstore(0x00, operator) sstore(keccak256(0x0c, 0x34), isApproved) // Emit the {ApprovalForAll} event. mstore(0x00, isApproved) let m := shr(96, not(0)) log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, and(m, by), and(m, operator)) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL TRANSFER FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Equivalent to `_safeTransfer(address(0), from, to, id, amount, data)`. function _safeTransfer(address from, address to, uint256 id, uint256 amount, bytes memory data) internal virtual { _safeTransfer(address(0), from, to, id, amount, data); } /// @dev Transfers `amount` of `id` from `from` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - `from` must have at least `amount` of `id`. /// - If `by` is not the zero address, it must be either `from`, /// or approved to manage the tokens of `from`. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155Received}, which is called upon a batch transfer. /// /// Emits a {TransferSingle} event. function _safeTransfer( address by, address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, to, _single(id), _single(amount), data); } /// @solidity memory-safe-assembly assembly { let from_ := shl(96, from) let to_ := shl(96, to) // Revert if `to` is the zero address. if iszero(to_) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_)) // If `by` is not the zero address, and not equal to `from`, // check if it is approved to manage all the tokens of `from`. let by_ := shl(96, by) if iszero(or(iszero(by_), eq(by_, from_))) { mstore(0x00, by) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Subtract and store the updated balance of `from`. { mstore(0x00, id) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } // Increase and store the updated balance of `to`. { mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_)) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } // Emit a {TransferSingle} event. mstore(0x20, amount) // forgefmt: disable-next-line log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_)) } if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, to, _single(id), _single(amount), data); } if (_hasCode(to)) _checkOnERC1155Received(from, to, id, amount, data); } /// @dev Equivalent to `_safeBatchTransfer(address(0), from, to, ids, amounts, data)`. function _safeBatchTransfer( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { _safeBatchTransfer(address(0), from, to, ids, amounts, data); } /// @dev Transfers `amounts` of `ids` from `from` to `to`. /// /// Requirements: /// - `to` cannot be the zero address. /// - `ids` and `amounts` must have the same length. /// - `from` must have at least `amounts` of `ids`. /// - If `by` is not the zero address, it must be either `from`, /// or approved to manage the tokens of `from`. /// - If `to` refers to a smart contract, it must implement /// {ERC1155-onERC1155BatchReceived}, which is called upon a batch transfer. /// /// Emits a {TransferBatch} event. function _safeBatchTransfer( address by, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { if (_useBeforeTokenTransfer()) { _beforeTokenTransfer(from, to, ids, amounts, data); } /// @solidity memory-safe-assembly assembly { if iszero(eq(mload(ids), mload(amounts))) { mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`. revert(0x1c, 0x04) } let from_ := shl(96, from) let to_ := shl(96, to) // Revert if `to` is the zero address. if iszero(to_) { mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`. revert(0x1c, 0x04) } let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, from_) let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, to_) mstore(0x20, fromSlotSeed) // If `by` is not the zero address, and not equal to `from`, // check if it is approved to manage all the tokens of `from`. let by_ := shl(96, by) if iszero(or(iszero(by_), eq(by_, from_))) { mstore(0x00, by) if iszero(sload(keccak256(0x0c, 0x34))) { mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`. revert(0x1c, 0x04) } } // Loop through all the `ids` and update the balances. { for { let i := shl(5, mload(ids)) } i { i := sub(i, 0x20) } { let amount := mload(add(amounts, i)) // Subtract and store the updated balance of `from`. { mstore(0x20, fromSlotSeed) mstore(0x00, mload(add(ids, i))) let fromBalanceSlot := keccak256(0x00, 0x40) let fromBalance := sload(fromBalanceSlot) if gt(amount, fromBalance) { mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`. revert(0x1c, 0x04) } sstore(fromBalanceSlot, sub(fromBalance, amount)) } // Increase and store the updated balance of `to`. { mstore(0x20, toSlotSeed) let toBalanceSlot := keccak256(0x00, 0x40) let toBalanceBefore := sload(toBalanceSlot) let toBalanceAfter := add(toBalanceBefore, amount) if lt(toBalanceAfter, toBalanceBefore) { mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`. revert(0x1c, 0x04) } sstore(toBalanceSlot, toBalanceAfter) } } } // Emit a {TransferBatch} event. { let m := mload(0x40) // Copy the `ids`. mstore(m, 0x40) let n := add(0x20, shl(5, mload(ids))) let o := add(m, 0x40) pop(staticcall(gas(), 4, ids, n, o, n)) // Copy the `amounts`. mstore(add(m, 0x20), add(0x40, returndatasize())) o := add(o, returndatasize()) n := add(0x20, shl(5, mload(amounts))) pop(staticcall(gas(), 4, amounts, n, o, n)) n := sub(add(o, returndatasize()), m) // Do the emit. log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_)) } } if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, to, ids, amounts, data); } if (_hasCode(to)) _checkOnERC1155BatchReceived(from, to, ids, amounts, data); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* HOOKS FOR OVERRIDING */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Override this function to return true if `_beforeTokenTransfer` is used. /// This is to help the compiler avoid producing dead bytecode. function _useBeforeTokenTransfer() internal view virtual returns (bool) { return false; } /// @dev Hook that is called before any token transfer. /// This includes minting and burning, as well as batched variants. /// /// The same hook is called on both single and batched variants. /// For single transfers, the length of the `id` and `amount` arrays are 1. function _beforeTokenTransfer( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} /// @dev Override this function to return true if `_afterTokenTransfer` is used. /// This is to help the compiler avoid producing dead bytecode. function _useAfterTokenTransfer() internal view virtual returns (bool) { return false; } /// @dev Hook that is called after any token transfer. /// This includes minting and burning, as well as batched variants. /// /// The same hook is called on both single and batched variants. /// For single transfers, the length of the `id` and `amount` arrays are 1. function _afterTokenTransfer( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PRIVATE HELPERS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Helper for calling the `_afterTokenTransfer` hook. /// This is to help the compiler avoid producing dead bytecode. function _afterTokenTransferCalldata( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) private { if (_useAfterTokenTransfer()) { _afterTokenTransfer(from, to, ids, amounts, data); } } /// @dev Returns if `a` has bytecode of non-zero length. function _hasCode(address a) private view returns (bool result) { /// @solidity memory-safe-assembly assembly { result := extcodesize(a) // Can handle dirty upper bits. } } /// @dev Perform a call to invoke {IERC1155Receiver-onERC1155Received} on `to`. /// Reverts if the target does not support the function correctly. function _checkOnERC1155Received( address from, address to, uint256 id, uint256 amount, bytes memory data ) private { /// @solidity memory-safe-assembly assembly { // Prepare the calldata. let m := mload(0x40) // `onERC1155Received(address,address,uint256,uint256,bytes)`. mstore(m, 0xf23a6e61) mstore(add(m, 0x20), caller()) mstore(add(m, 0x40), shr(96, shl(96, from))) mstore(add(m, 0x60), id) mstore(add(m, 0x80), amount) mstore(add(m, 0xa0), 0xa0) let n := mload(data) mstore(add(m, 0xc0), n) if n { pop(staticcall(gas(), 4, add(data, 0x20), n, add(m, 0xe0), n)) } // Revert if the call reverts. if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, n), m, 0x20)) { if returndatasize() { // Bubble up the revert if the call reverts. returndatacopy(m, 0x00, returndatasize()) revert(m, returndatasize()) } } // Load the returndata and compare it with the function selector. if iszero(eq(mload(m), shl(224, 0xf23a6e61))) { mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`. revert(0x1c, 0x04) } } } /// @dev Perform a call to invoke {IERC1155Receiver-onERC1155BatchReceived} on `to`. /// Reverts if the target does not support the function correctly. function _checkOnERC1155BatchReceived( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { /// @solidity memory-safe-assembly assembly { // Prepare the calldata. let m := mload(0x40) // `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`. mstore(m, 0xbc197c81) mstore(add(m, 0x20), caller()) mstore(add(m, 0x40), shr(96, shl(96, from))) // Copy the `ids`. mstore(add(m, 0x60), 0xa0) let n := add(0x20, shl(5, mload(ids))) let o := add(m, 0xc0) pop(staticcall(gas(), 4, ids, n, o, n)) // Copy the `amounts`. let s := add(0xa0, returndatasize()) mstore(add(m, 0x80), s) o := add(o, returndatasize()) n := add(0x20, shl(5, mload(amounts))) pop(staticcall(gas(), 4, amounts, n, o, n)) // Copy the `data`. mstore(add(m, 0xa0), add(s, returndatasize())) o := add(o, returndatasize()) n := add(0x20, mload(data)) pop(staticcall(gas(), 4, data, n, o, n)) n := sub(add(o, returndatasize()), add(m, 0x1c)) // Revert if the call reverts. if iszero(call(gas(), to, 0, add(m, 0x1c), n, m, 0x20)) { if returndatasize() { // Bubble up the revert if the call reverts. returndatacopy(m, 0x00, returndatasize()) revert(m, returndatasize()) } } // Load the returndata and compare it with the function selector. if iszero(eq(mload(m), shl(224, 0xbc197c81))) { mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`. revert(0x1c, 0x04) } } } /// @dev Returns `x` in an array with a single element. function _single(uint256 x) private pure returns (uint256[] memory result) { /// @solidity memory-safe-assembly assembly { result := mload(0x40) mstore(0x40, add(result, 0x40)) mstore(result, 1) mstore(add(result, 0x20), x) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol) pragma solidity ^0.8.20; import {IAccessControl} from "./IAccessControl.sol"; import {Context} from "../utils/Context.sol"; import {ERC165} from "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address account => bool) hasRole; bytes32 adminRole; } mapping(bytes32 role => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with an {AccessControlUnauthorizedAccount} error including the required role. */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual returns (bool) { return _roles[role].hasRole[account]; } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()` * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier. */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account` * is missing `role`. */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert AccessControlUnauthorizedAccount(account, role); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address callerConfirmation) public virtual { if (callerConfirmation != _msgSender()) { revert AccessControlBadConfirmation(); } _revokeRole(role, callerConfirmation); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual returns (bool) { if (!hasRole(role, account)) { _roles[role].hasRole[account] = true; emit RoleGranted(role, account, _msgSender()); return true; } else { return false; } } /** * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual returns (bool) { if (hasRole(role, account)) { _roles[role].hasRole[account] = false; emit RoleRevoked(role, account, _msgSender()); return true; } else { return false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol) pragma solidity ^0.8.20; /** * @dev External interface of AccessControl declared to support ERC-165 detection. */ interface IAccessControl { /** * @dev The `account` is missing a role. */ error AccessControlUnauthorizedAccount(address account, bytes32 neededRole); /** * @dev The caller of a function is not the expected one. * * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}. */ error AccessControlBadConfirmation(); /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role). * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. */ function renounceRole(bytes32 role, address callerConfirmation) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[ERC]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
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Contract Security Audit
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Contract ABI
API[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AccessControlBadConfirmation","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes32","name":"neededRole","type":"bytes32"}],"name":"AccessControlUnauthorizedAccount","type":"error"},{"inputs":[],"name":"AccountBalanceOverflow","type":"error"},{"inputs":[],"name":"ArrayLengthsMismatch","type":"error"},{"inputs":[],"name":"InsufficientBalance","type":"error"},{"inputs":[],"name":"NotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferDisabled","type":"error"},{"inputs":[],"name":"TransferToNonERC1155ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"isApproved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"TransferBatch","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TransferSingle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"value","type":"string"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"}],"name":"URI","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_ID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"owners","type":"address[]"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"}],"name":"balanceOfBatch","outputs":[{"internalType":"uint256[]","name":"balances","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"result","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeBatchTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"isApproved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxId","type":"uint256"}],"name":"setMaxId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"},{"internalType":"string","name":"_uri","type":"string"}],"name":"setUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"result","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]
Deployed Bytecode
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Multichain Portfolio | 34 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.