Erc1155 implementation

src/interfaces/IERC1155.sol

@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.30;
+
+/// @title ERC-1155 Multi Token Standard Interface
+/// @notice Interface for ERC-1155 token contracts with custom errors
+/// @dev This interface includes all custom errors used by ERC-1155 implementations (ERC-6093)
+interface IERC1155 {
+    /// @notice Error indicating insufficient balance for a transfer.
+    /// @param _sender Address attempting the transfer.
+    /// @param _balance Current balance of the sender.
+    /// @param _needed Amount required to complete the operation.
+    /// @param _tokenId The token ID involved.
+    error ERC1155InsufficientBalance(address _sender, uint256 _balance, uint256 _needed, uint256 _tokenId);
+
+    /// @notice Error indicating the sender address is invalid.
+    /// @param _sender Invalid sender address.
+    error ERC1155InvalidSender(address _sender);
+
+    /// @notice Error indicating the receiver address is invalid.
+    /// @param _receiver Invalid receiver address.
+    error ERC1155InvalidReceiver(address _receiver);
+
+    /// @notice Error indicating missing approval for an operator.
+    /// @param _operator Address attempting the operation.
+    /// @param _owner The token owner.
+    error ERC1155MissingApprovalForAll(address _operator, address _owner);
+
+    /// @notice Error indicating the approver address is invalid.
+    /// @param _approver Invalid approver address.
+    error ERC1155InvalidApprover(address _approver);
+
+    /// @notice Error indicating the operator address is invalid.
+    /// @param _operator Invalid operator address.
+    error ERC1155InvalidOperator(address _operator);
+
+    /// @notice Error indicating array length mismatch in batch operations.
+    /// @param _idsLength Length of the ids array.
+    /// @param _valuesLength Length of the values array.
+    error ERC1155InvalidArrayLength(uint256 _idsLength, uint256 _valuesLength);
+    /// @notice Emitted when `value` amount of tokens of type `id` are transferred from `from` to `to` by `operator`.
+    /// @param _operator The address which initiated the transfer.
+    /// @param _from The address which previously owned the token.
+    /// @param _to The address which now owns the token.
+    /// @param _id The token type being transferred.
+    /// @param _value The amount of tokens transferred.
+
+    event TransferSingle(
+        address indexed _operator, address indexed _from, address indexed _to, uint256 _id, uint256 _value
+    );
+
+    /// @notice Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all transfers.
+    /// @param _operator The address which initiated the batch transfer.
+    /// @param _from The address which previously owned the tokens.
+    /// @param _to The address which now owns the tokens.
+    /// @param _ids The token types being transferred.
+    /// @param _values The amounts of tokens transferred.
+    event TransferBatch(
+        address indexed _operator, address indexed _from, address indexed _to, uint256[] _ids, uint256[] _values
+    );
+
+    /// @notice Emitted when `account` grants or revokes permission to `operator` to transfer their tokens.
+    /// @param _account The token owner granting/revoking approval.
+    /// @param _operator The address being approved/revoked.
+    /// @param _approved True if approval is granted, false if revoked.
+    event ApprovalForAll(address indexed _account, address indexed _operator, bool _approved);
+
+    /// @notice Emitted when the URI for token type `id` changes to `value`.
+    /// @param _value The new URI for the token type.
+    /// @param _id The token type whose URI changed.
+    event URI(string _value, uint256 indexed _id);
+
+    /// @notice Returns the amount of tokens of token type `id` owned by `account`.
+    /// @param _account The address to query the balance of.
+    /// @param _id The token type to query.
+    /// @return The balance of the token type.
+    function balanceOf(address _account, uint256 _id) external view returns (uint256);
+
+    /// @notice Batched version of {balanceOf}.
+    /// @param _accounts The addresses to query the balances of (order and length must match _ids array).
+    /// @param _ids The token types to query (order and length must match _accounts array).
+    /// @return The balances of the token types.
+    function balanceOfBatch(address[] calldata _accounts, uint256[] calldata _ids)
+        external
+        view
+        returns (uint256[] memory);
+
+    /// @notice Grants or revokes permission to `operator` to transfer the caller's tokens.
+    /// @param _operator The address to grant/revoke approval to.
+    /// @param _approved True to approve, false to revoke.
+    function setApprovalForAll(address _operator, bool _approved) external;
+
+    /// @notice Returns true if `operator` is approved to transfer `account`'s tokens.
+    /// @param _account The token owner.
+    /// @param _operator The operator to query.
+    /// @return True if the operator is approved, false otherwise.
+    function isApprovedForAll(address _account, address _operator) external view returns (bool);
+
+    /// @notice Transfers `value` amount of token type `id` from `from` to `to`.
+    /// @param _from The address to transfer from.
+    /// @param _to The address to transfer to.
+    /// @param _id The token type to transfer.
+    /// @param _value The amount to transfer.
+    /// @param _data Additional data with no specified format.
+    function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _value, bytes calldata _data) external;
+
+    /// @notice Batched version of {safeTransferFrom}.
+    /// @param _from The address to transfer from.
+    /// @param _to The address to transfer to.
+    /// @param _ids The token types to transfer (order and length must match _values array).
+    /// @param _values The amounts to transfer (order and length must match _ids array).
+    /// @param _data Additional data with no specified format.
+    function safeBatchTransferFrom(
+        address _from,
+        address _to,
+        uint256[] calldata _ids,
+        uint256[] calldata _values,
+        bytes calldata _data
+    ) external;
+
+    /// @notice Returns the URI for token type `id`.
+    /// @param _id The token type to query.
+    /// @return The URI for the token type.
+    function uri(uint256 _id) external view returns (string memory);
+}

src/interfaces/IERC1155Receiver.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.30;
+
+/// @title ERC-1155 Token Receiver Interface
+/// @notice Interface that must be implemented by smart contracts in order to receive ERC-1155 token transfers.
+interface IERC1155Receiver {
+    /**
+     * @notice Handles the receipt of a single ERC-1155 token type.
+     * @dev This function is called at the end of a `safeTransferFrom` after the balance has been updated.
+     *
+     * IMPORTANT: To accept the transfer, this must return
+     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
+     * (i.e. 0xf23a6e61, or its own function selector).
+     *
+     * @param _operator The address which initiated the transfer (i.e. msg.sender).
+     * @param _from The address which previously owned the token.
+     * @param _id The ID of the token being transferred.
+     * @param _value The amount of tokens being transferred.
+     * @param _data Additional data with no specified format.
+     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed.
+     */
+    function onERC1155Received(address _operator, address _from, uint256 _id, uint256 _value, bytes calldata _data)
+        external
+        returns (bytes4);
+
+    /**
+     * @notice Handles the receipt of multiple ERC-1155 token types.
+     * @dev This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated.
+     *
+     * IMPORTANT: To accept the transfer(s), this must return
+     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
+     * (i.e. 0xbc197c81, or its own function selector).
+     *
+     * @param _operator The address which initiated the batch transfer (i.e. msg.sender).
+     * @param _from The address which previously owned the token.
+     * @param _ids An array containing ids of each token being transferred (order and length must match _values array).
+     * @param _values An array containing amounts of each token being transferred (order and length must match _ids array).
+     * @param _data Additional data with no specified format.
+     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed.
+     */
+    function onERC1155BatchReceived(
+        address _operator,
+        address _from,
+        uint256[] calldata _ids,
+        uint256[] calldata _values,
+        bytes calldata _data
+    ) external returns (bytes4);
+}