0xA7...f954
REVV Motorsport
REVV-I
Collection
Collection
This contract's source code is verified!
Contract Metadata
Compiler
0.6.8+commit.0bbfe453
Language
Solidity
Contract Source Code
File 1 of 1: REVVInventory.sol
// Sources flattened with hardhat v2.0.8 https://hardhat.org
// File @openzeppelin/contracts/utils/Address.sol@v3.3.0
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC721/IERC721.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC721 Non-Fungible Token Standard, basic interface
* @dev See https://eips.ethereum.org/EIPS/eip-721
* Note: The ERC-165 identifier for this interface is 0x80ac58cd.
*/
interface IERC721 {
event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId);
event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId);
event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);
/**
* Gets the balance of the specified address
* @param owner address to query the balance of
* @return balance uint256 representing the amount owned by the passed address
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* Gets the owner of the specified ID
* @param tokenId uint256 ID to query the owner of
* @return owner address currently marked as the owner of the given ID
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* Approves another address to transfer the given token ID
* @dev The zero address indicates there is no approved address.
* @dev There can only be one approved address per token at a given time.
* @dev Can only be called by the token owner or an approved operator.
* @param to address to be approved for the given token ID
* @param tokenId uint256 ID of the token to be approved
*/
function approve(address to, uint256 tokenId) external;
/**
* Gets the approved address for a token ID, or zero if no address set
* @dev Reverts if the token ID does not exist.
* @param tokenId uint256 ID of the token to query the approval of
* @return operator address currently approved for the given token ID
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* Sets or unsets the approval of a given operator
* @dev An operator is allowed to transfer all tokens of the sender on their behalf
* @param operator operator address to set the approval
* @param approved representing the status of the approval to be set
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* Tells whether an operator is approved by a given owner
* @param owner owner address which you want to query the approval of
* @param operator operator address which you want to query the approval of
* @return bool whether the given operator is approved by the given owner
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* Transfers the ownership of a given token ID to another address
* @dev Usage of this method is discouraged, use `safeTransferFrom` whenever possible
* @dev Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* Safely transfers the ownership of a given token ID to another address
*
* If the target address is a contract, it must implement `onERC721Received`,
* which is called upon a safe transfer, and return the magic value
* `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
* the transfer is reverted.
*
* @dev Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* Safely transfers the ownership of a given token ID to another address
*
* If the target address is a contract, it must implement `onERC721Received`,
* which is called upon a safe transfer, and return the magic value
* `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
* the transfer is reverted.
*
* @dev Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes data to send along with a safe transfer check
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC721/IERC721Metadata.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
* Note: The ERC-165 identifier for this interface is 0x5b5e139f.
*/
interface IERC721Metadata {
/**
* @dev Gets the token name
* @return string representing the token name
*/
function name() external view returns (string memory);
/**
* @dev Gets the token symbol
* @return string representing the token symbol
*/
function symbol() external view returns (string memory);
/**
* @dev Returns an URI for a given token ID
* Throws if the token ID does not exist. May return an empty string.
* @param tokenId uint256 ID of the token to query
* @return string URI of given token ID
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC721/IERC721BatchTransfer.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC721 Non-Fungible Token Standard, optional unsafe batchTransfer interface
* @dev See https://eips.ethereum.org/EIPS/eip-721
* Note: The ERC-165 identifier for this interface is.
*/
interface IERC721BatchTransfer {
/**
* Unsafely transfers a batch of tokens.
* @dev Usage of this method is discouraged, use `safeTransferFrom` whenever possible
* @dev Reverts if `to` is the zero address.
* @dev Reverts if the sender is not approved.
* @dev Reverts if one of `tokenIds` is not owned by `from`.
* @dev Resets the token approval for each of `tokenIds`.
* @dev Emits an {IERC721-Transfer} event for each of `tokenIds`.
* @param from Current tokens owner.
* @param to Address of the new token owner.
* @param tokenIds Identifiers of the tokens to transfer.
*/
function batchTransferFrom(
address from,
address to,
uint256[] calldata tokenIds
) external;
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC721/IERC721Receiver.sol@v7.1.0
pragma solidity 0.6.8;
/**
@title ERC721 Non-Fungible Token Standard, token receiver
@dev See https://eips.ethereum.org/EIPS/eip-721
Interface for any contract that wants to support safeTransfers from ERC721 asset contracts.
Note: The ERC-165 identifier for this interface is 0x150b7a02.
*/
interface IERC721Receiver {
/**
@notice Handle the receipt of an NFT
@dev The ERC721 smart contract calls this function on the recipient
after a {IERC721-safeTransferFrom}. This function MUST return the function selector,
otherwise the caller will revert the transaction. The selector to be
returned can be obtained as `this.onERC721Received.selector`. This
function MAY throw to revert and reject the transfer.
Note: the ERC721 contract address is always the message sender.
@param operator The address which called `safeTransferFrom` function
@param from The address which previously owned the token
@param tokenId The NFT identifier which is being transferred
@param data Additional data with no specified format
@return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File @openzeppelin/contracts/GSN/Context.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/*
* @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 GSN 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 payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// File @openzeppelin/contracts/introspection/IERC165.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* 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[EIP 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);
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/IERC1155.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC-1155 Multi Token Standard, basic interface
* @dev See https://eips.ethereum.org/EIPS/eip-1155
* Note: The ERC-165 identifier for this interface is 0xd9b67a26.
*/
interface IERC1155 {
event TransferSingle(address indexed _operator, address indexed _from, address indexed _to, uint256 _id, uint256 _value);
event TransferBatch(address indexed _operator, address indexed _from, address indexed _to, uint256[] _ids, uint256[] _values);
event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);
event URI(string _value, uint256 indexed _id);
/**
* Safely transfers some token.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if the sender is not approved.
* @dev Reverts if `from` has an insufficient balance.
* @dev Reverts if `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155received} fails or is refused.
* @dev Emits a `TransferSingle` event.
* @param from Current token owner.
* @param to Address of the new token owner.
* @param id Identifier of the token to transfer.
* @param value Amount of token to transfer.
* @param data Optional data to send along to a receiver contract.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 value,
bytes calldata data
) external;
/**
* Safely transfers a batch of tokens.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `ids` and `values` have different lengths.
* @dev Reverts if the sender is not approved.
* @dev Reverts if `from` has an insufficient balance for any of `ids`.
* @dev Reverts if `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155batchReceived} fails or is refused.
* @dev Emits a `TransferBatch` event.
* @param from Current token owner.
* @param to Address of the new token owner.
* @param ids Identifiers of the tokens to transfer.
* @param values Amounts of tokens to transfer.
* @param data Optional data to send along to a receiver contract.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external;
/**
* Retrieves the balance of `id` owned by account `owner`.
* @param owner The account to retrieve the balance of.
* @param id The identifier to retrieve the balance of.
* @return The balance of `id` owned by account `owner`.
*/
function balanceOf(address owner, uint256 id) external view returns (uint256);
/**
* Retrieves the balances of `ids` owned by accounts `owners`. For each pair:
* @dev Reverts if `owners` and `ids` have different lengths.
* @param owners The addresses of the token holders
* @param ids The identifiers to retrieve the balance of.
* @return The balances of `ids` owned by accounts `owners`.
*/
function balanceOfBatch(address[] calldata owners, uint256[] calldata ids) external view returns (uint256[] memory);
/**
* Enables or disables an operator's approval.
* @dev Emits an `ApprovalForAll` event.
* @param operator Address of the operator.
* @param approved True to approve the operator, false to revoke an approval.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* Retrieves the approval status of an operator for a given owner.
* @param owner Address of the authorisation giver.
* @param operator Address of the operator.
* @return True if the operator is approved, false if not.
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/IERC1155MetadataURI.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC-1155 Multi Token Standard, optional metadata URI extension
* @dev See https://eips.ethereum.org/EIPS/eip-1155
* Note: The ERC-165 identifier for this interface is 0x0e89341c.
*/
interface IERC1155MetadataURI {
/**
* @notice A distinct Uniform Resource Identifier (URI) for a given token.
* @dev URIs are defined in RFC 3986.
* @dev The URI MUST point to a JSON file that conforms to the "ERC-1155 Metadata URI JSON Schema".
* @dev The uri function SHOULD be used to retrieve values if no event was emitted.
* @dev The uri function MUST return the same value as the latest event for an _id if it was emitted.
* @dev The uri function MUST NOT be used to check for the existence of a token as it is possible for
* an implementation to return a valid string even if the token does not exist.
* @return URI string
*/
function uri(uint256 id) external view returns (string memory);
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/IERC1155Inventory.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC-1155 Multi Token Standard, optional Inventory extension
* @dev See https://eips.ethereum.org/EIPS/eip-xxxx
* Interface for fungible/non-fungible tokens management on a 1155-compliant contract.
*
* This interface rationalizes the co-existence of fungible and non-fungible tokens
* within the same contract. As several kinds of fungible tokens can be managed under
* the Multi-Token standard, we consider that non-fungible tokens can be classified
* under their own specific type. We introduce the concept of non-fungible collection
* and consider the usage of 3 types of identifiers:
* (a) Fungible Token identifiers, each representing a set of Fungible Tokens,
* (b) Non-Fungible Collection identifiers, each representing a set of Non-Fungible Tokens (this is not a token),
* (c) Non-Fungible Token identifiers.
* Identifiers nature
* | Type | isFungible | isCollection | isToken |
* | Fungible Token | true | true | true |
* | Non-Fungible Collection | false | true | false |
* | Non-Fungible Token | false | false | true |
*
* Identifiers compatibilities
* | Type | transfer | balance | supply | owner |
* | Fungible Token | OK | OK | OK | NOK |
* | Non-Fungible Collection | NOK | OK | OK | NOK |
* | Non-Fungible Token | OK | 0 or 1 | 0 or 1 | OK |
*
* Note: The ERC-165 identifier for this interface is 0x469bd23f.
*/
interface IERC1155Inventory {
/**
* Optional event emitted when a collection (Fungible Token or Non-Fungible Collection) is created.
* This event can be used by a client application to determine which identifiers are meaningful
* to track through the functions `balanceOf`, `balanceOfBatch` and `totalSupply`.
* @dev This event MUST NOT be emitted twice for the same `collectionId`.
*/
event CollectionCreated(uint256 indexed collectionId, bool indexed fungible);
/**
* Retrieves the owner of a non-fungible token (ERC721-compatible).
* @dev Reverts if `nftId` is owned by the zero address.
* @param nftId Identifier of the token to query.
* @return Address of the current owner of the token.
*/
function ownerOf(uint256 nftId) external view returns (address);
/**
* Introspects whether or not `id` represents a fungible token.
* This function MUST return true even for a fungible token which is not-yet created.
* @param id The identifier to query.
* @return bool True if `id` represents afungible token, false otherwise.
*/
function isFungible(uint256 id) external pure returns (bool);
/**
* Introspects the non-fungible collection to which `nftId` belongs.
* @dev This function MUST return a value representing a non-fungible collection.
* @dev This function MUST return a value for a non-existing token, and SHOULD NOT be used to check the existence of a non-fungible token.
* @dev Reverts if `nftId` does not represent a non-fungible token.
* @param nftId The token identifier to query the collection of.
* @return The non-fungible collection identifier to which `nftId` belongs.
*/
function collectionOf(uint256 nftId) external pure returns (uint256);
/**
* Retrieves the total supply of `id`.
* @param id The identifier for which to retrieve the supply of.
* @return
* If `id` represents a collection (fungible token or non-fungible collection), the total supply for this collection.
* If `id` represents a non-fungible token, 1 if the token exists, else 0.
*/
function totalSupply(uint256 id) external view returns (uint256);
/**
* @notice this documentation overrides {IERC1155-balanceOf(address,uint256)}.
* Retrieves the balance of `id` owned by account `owner`.
* @param owner The account to retrieve the balance of.
* @param id The identifier to retrieve the balance of.
* @return
* If `id` represents a collection (fungible token or non-fungible collection), the balance for this collection.
* If `id` represents a non-fungible token, 1 if the token is owned by `owner`, else 0.
*/
// function balanceOf(address owner, uint256 id) external view returns (uint256);
/**
* @notice this documentation overrides {IERC1155-balanceOfBatch(address[],uint256[])}.
* Retrieves the balances of `ids` owned by accounts `owners`.
* @dev Reverts if `owners` and `ids` have different lengths.
* @param owners The accounts to retrieve the balances of.
* @param ids The identifiers to retrieve the balances of.
* @return An array of elements such as for each pair `id`/`owner`:
* If `id` represents a collection (fungible token or non-fungible collection), the balance for this collection.
* If `id` represents a non-fungible token, 1 if the token is owned by `owner`, else 0.
*/
// function balanceOfBatch(address[] calldata owners, uint256[] calldata ids) external view returns (uint256[] memory);
/**
* @notice this documentation overrides its {IERC1155-safeTransferFrom(address,address,uint256,uint256,bytes)}.
* Safely transfers some token.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if the sender is not approved.
* @dev Reverts if `id` does not represent a token.
* @dev Reverts if `id` represents a non-fungible token and `value` is not 1.
* @dev Reverts if `id` represents a non-fungible token and is not owned by `from`.
* @dev Reverts if `id` represents a fungible token and `value` is 0.
* @dev Reverts if `id` represents a fungible token and `from` has an insufficient balance.
* @dev Reverts if `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155received} fails or is refused.
* @dev Emits an {IERC1155-TransferSingle} event.
* @param from Current token owner.
* @param to Address of the new token owner.
* @param id Identifier of the token to transfer.
* @param value Amount of token to transfer.
* @param data Optional data to pass to the receiver contract.
*/
// function safeTransferFrom(
// address from,
// address to,
// uint256 id,
// uint256 value,
// bytes calldata data
// ) external;
/**
* @notice this documentation overrides its {IERC1155-safeBatchTransferFrom(address,address,uint256[],uint256[],bytes)}.
* Safely transfers a batch of tokens.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if the sender is not approved.
* @dev Reverts if one of `ids` does not represent a token.
* @dev Reverts if one of `ids` represents a non-fungible token and `value` is not 1.
* @dev Reverts if one of `ids` represents a non-fungible token and is not owned by `from`.
* @dev Reverts if one of `ids` represents a fungible token and `value` is 0.
* @dev Reverts if one of `ids` represents a fungible token and `from` has an insufficient balance.
* @dev Reverts if one of `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155batchReceived} fails or is refused.
* @dev Emits an {IERC1155-TransferBatch} event.
* @param from Current tokens owner.
* @param to Address of the new tokens owner.
* @param ids Identifiers of the tokens to transfer.
* @param values Amounts of tokens to transfer.
* @param data Optional data to pass to the receiver contract.
*/
// function safeBatchTransferFrom(
// address from,
// address to,
// uint256[] calldata ids,
// uint256[] calldata values,
// bytes calldata data
// ) external;
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/IERC1155TokenReceiver.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC-1155 Multi Token Standard, token receiver
* @dev See https://eips.ethereum.org/EIPS/eip-1155
* Interface for any contract that wants to support transfers from ERC1155 asset contracts.
* Note: The ERC-165 identifier for this interface is 0x4e2312e0.
*/
interface IERC1155TokenReceiver {
/**
* @notice Handle the receipt of a single ERC1155 token type.
* An ERC1155 contract MUST call this function on a recipient contract, at the end of a `safeTransferFrom` after the balance update.
* This function MUST return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61) to accept the transfer.
* Return of any other value than the prescribed keccak256 generated value MUST result in the transaction being reverted by the caller.
* @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 `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @notice Handle the receipt of multiple ERC1155 token types.
* An ERC1155 contract MUST call this function on a recipient contract, at the end of a `safeBatchTransferFrom` after the balance updates.
* This function MUST return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81) if to accept the transfer(s).
* Return of any other value than the prescribed keccak256 generated value MUST result in the transaction being reverted by the caller.
* @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)"))`
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/ERC1155InventoryBase.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC1155InventoryIdentifiersLib, a library to introspect inventory identifiers.
* @dev With N=32, representing the Non-Fungible Collection mask length, identifiers are represented as follow:
* (a) a Fungible Token:
* - most significant bit == 0
* (b) a Non-Fungible Collection:
* - most significant bit == 1
* - (256-N) least significant bits == 0
* (c) a Non-Fungible Token:
* - most significant bit == 1
* - (256-N) least significant bits != 0
*/
library ERC1155InventoryIdentifiersLib {
// Non-fungible bit. If an id has this bit set, it is a non-fungible (either collection or token)
uint256 internal constant _NF_BIT = 1 << 255;
// Mask for non-fungible collection (including the nf bit)
uint256 internal constant _NF_COLLECTION_MASK = uint256(type(uint32).max) << 224;
uint256 internal constant _NF_TOKEN_MASK = ~_NF_COLLECTION_MASK;
function isFungibleToken(uint256 id) internal pure returns (bool) {
return id & _NF_BIT == 0;
}
function isNonFungibleToken(uint256 id) internal pure returns (bool) {
return id & _NF_BIT != 0 && id & _NF_TOKEN_MASK != 0;
}
function getNonFungibleCollection(uint256 nftId) internal pure returns (uint256) {
return nftId & _NF_COLLECTION_MASK;
}
}
abstract contract ERC1155InventoryBase is IERC1155, IERC1155MetadataURI, IERC1155Inventory, IERC165, Context {
using ERC1155InventoryIdentifiersLib for uint256;
bytes4 private constant _ERC165_INTERFACE_ID = type(IERC165).interfaceId;
bytes4 private constant _ERC1155_INTERFACE_ID = type(IERC1155).interfaceId;
bytes4 private constant _ERC1155_METADATA_URI_INTERFACE_ID = type(IERC1155MetadataURI).interfaceId;
bytes4 private constant _ERC1155_INVENTORY_INTERFACE_ID = type(IERC1155Inventory).interfaceId;
// bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))
bytes4 internal constant _ERC1155_RECEIVED = 0xf23a6e61;
// bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))
bytes4 internal constant _ERC1155_BATCH_RECEIVED = 0xbc197c81;
// Burnt non-fungible token owner's magic value
uint256 internal constant _BURNT_NFT_OWNER = 0xdead000000000000000000000000000000000000000000000000000000000000;
/* owner => operator => approved */
mapping(address => mapping(address => bool)) internal _operators;
/* collection ID => owner => balance */
mapping(uint256 => mapping(address => uint256)) internal _balances;
/* collection ID => supply */
mapping(uint256 => uint256) internal _supplies;
/* NFT ID => owner */
mapping(uint256 => uint256) internal _owners;
/* collection ID => creator */
mapping(uint256 => address) internal _creators;
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == _ERC165_INTERFACE_ID ||
interfaceId == _ERC1155_INTERFACE_ID ||
interfaceId == _ERC1155_METADATA_URI_INTERFACE_ID ||
interfaceId == _ERC1155_INVENTORY_INTERFACE_ID;
}
//================================== ERC1155 =======================================/
/// @dev See {IERC1155-balanceOf(address,uint256)}.
function balanceOf(address owner, uint256 id) public view virtual override returns (uint256) {
require(owner != address(0), "Inventory: zero address");
if (id.isNonFungibleToken()) {
return address(_owners[id]) == owner ? 1 : 0;
}
return _balances[id][owner];
}
/// @dev See {IERC1155-balanceOfBatch(address[],uint256[])}.
function balanceOfBatch(address[] calldata owners, uint256[] calldata ids) external view virtual override returns (uint256[] memory) {
require(owners.length == ids.length, "Inventory: inconsistent arrays");
uint256[] memory balances = new uint256[](owners.length);
for (uint256 i = 0; i != owners.length; ++i) {
balances[i] = balanceOf(owners[i], ids[i]);
}
return balances;
}
/// @dev See {IERC1155-setApprovalForAll(address,bool)}.
function setApprovalForAll(address operator, bool approved) public virtual override {
address sender = _msgSender();
require(operator != sender, "Inventory: self-approval");
_operators[sender][operator] = approved;
emit ApprovalForAll(sender, operator, approved);
}
/// @dev See {IERC1155-isApprovedForAll(address,address)}.
function isApprovedForAll(address tokenOwner, address operator) public view virtual override returns (bool) {
return _operators[tokenOwner][operator];
}
//================================== ERC1155Inventory =======================================/
/// @dev See {IERC1155Inventory-isFungible(uint256)}.
function isFungible(uint256 id) external pure virtual override returns (bool) {
return id.isFungibleToken();
}
/// @dev See {IERC1155Inventory-collectionOf(uint256)}.
function collectionOf(uint256 nftId) external pure virtual override returns (uint256) {
require(nftId.isNonFungibleToken(), "Inventory: not an NFT");
return nftId.getNonFungibleCollection();
}
/// @dev See {IERC1155Inventory-ownerOf(uint256)}.
function ownerOf(uint256 nftId) public view virtual override returns (address) {
address owner = address(_owners[nftId]);
require(owner != address(0), "Inventory: non-existing NFT");
return owner;
}
/// @dev See {IERC1155Inventory-totalSupply(uint256)}.
function totalSupply(uint256 id) external view virtual override returns (uint256) {
if (id.isNonFungibleToken()) {
return address(_owners[id]) == address(0) ? 0 : 1;
} else {
return _supplies[id];
}
}
//================================== ABI-level Internal Functions =======================================/
/**
* Creates a collection (optional).
* @dev Reverts if `collectionId` does not represent a collection.
* @dev Reverts if `collectionId` has already been created.
* @dev Emits a {IERC1155Inventory-CollectionCreated} event.
* @param collectionId Identifier of the collection.
*/
function _createCollection(uint256 collectionId) internal virtual {
require(!collectionId.isNonFungibleToken(), "Inventory: not a collection");
require(_creators[collectionId] == address(0), "Inventory: existing collection");
_creators[collectionId] = _msgSender();
emit CollectionCreated(collectionId, collectionId.isFungibleToken());
}
/// @dev See {IERC1155InventoryCreator-creator(uint256)}.
function _creator(uint256 collectionId) internal view virtual returns (address) {
require(!collectionId.isNonFungibleToken(), "Inventory: not a collection");
return _creators[collectionId];
}
//================================== Internal Helper Functions =======================================/
/**
* Returns whether `sender` is authorised to make a transfer on behalf of `from`.
* @param from The address to check operatibility upon.
* @param sender The sender address.
* @return True if sender is `from` or an operator for `from`, false otherwise.
*/
function _isOperatable(address from, address sender) internal view virtual returns (bool) {
return (from == sender) || _operators[from][sender];
}
/**
* Calls {IERC1155TokenReceiver-onERC1155Received} on a target contract.
* @dev Reverts if `to` is not a contract.
* @dev Reverts if the call to the target fails or is refused.
* @param from Previous token owner.
* @param to New token owner.
* @param id Identifier of the token transferred.
* @param value Amount of token transferred.
* @param data Optional data to send along with the receiver contract call.
*/
function _callOnERC1155Received(
address from,
address to,
uint256 id,
uint256 value,
bytes memory data
) internal {
require(IERC1155TokenReceiver(to).onERC1155Received(_msgSender(), from, id, value, data) == _ERC1155_RECEIVED, "Inventory: transfer refused");
}
/**
* Calls {IERC1155TokenReceiver-onERC1155batchReceived} on a target contract.
* @dev Reverts if `to` is not a contract.
* @dev Reverts if the call to the target fails or is refused.
* @param from Previous tokens owner.
* @param to New tokens owner.
* @param ids Identifiers of the tokens to transfer.
* @param values Amounts of tokens to transfer.
* @param data Optional data to send along with the receiver contract call.
*/
function _callOnERC1155BatchReceived(
address from,
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) internal {
require(
IERC1155TokenReceiver(to).onERC1155BatchReceived(_msgSender(), from, ids, values, data) == _ERC1155_BATCH_RECEIVED,
"Inventory: transfer refused"
);
}
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155721/ERC1155721Inventory.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC1155721Inventory, an ERC1155Inventory with additional support for ERC721.
*/
abstract contract ERC1155721Inventory is IERC721, IERC721Metadata, IERC721BatchTransfer, ERC1155InventoryBase {
using Address for address;
bytes4 private constant _ERC165_INTERFACE_ID = type(IERC165).interfaceId;
bytes4 private constant _ERC1155_TOKEN_RECEIVER_INTERFACE_ID = type(IERC1155TokenReceiver).interfaceId;
bytes4 private constant _ERC721_INTERFACE_ID = type(IERC721).interfaceId;
bytes4 private constant _ERC721_METADATA_INTERFACE_ID = type(IERC721Metadata).interfaceId;
bytes4 internal constant _ERC721_RECEIVED = type(IERC721Receiver).interfaceId;
uint256 internal constant _APPROVAL_BIT_TOKEN_OWNER_ = 1 << 160;
/* owner => NFT balance */
mapping(address => uint256) internal _nftBalances;
/* NFT ID => operator */
mapping(uint256 => address) internal _nftApprovals;
/// @dev See {IERC165-supportsInterface(bytes4)}.
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return super.supportsInterface(interfaceId) || interfaceId == _ERC721_INTERFACE_ID || interfaceId == _ERC721_METADATA_INTERFACE_ID;
}
//===================================== ERC721 ==========================================/
/// @dev See {IERC721-balanceOf(address)}.
function balanceOf(address tokenOwner) external view virtual override returns (uint256) {
require(tokenOwner != address(0), "Inventory: zero address");
return _nftBalances[tokenOwner];
}
/// @dev See {IERC721-ownerOf(uint256)} and {IERC1155Inventory-ownerOf(uint256)}.
function ownerOf(uint256 nftId) public view virtual override(IERC721, ERC1155InventoryBase) returns (address) {
return ERC1155InventoryBase.ownerOf(nftId);
}
/// @dev See {IERC721-approve(address,uint256)}.
function approve(address to, uint256 nftId) external virtual override {
address tokenOwner = ownerOf(nftId);
require(to != tokenOwner, "Inventory: self-approval");
require(_isOperatable(tokenOwner, _msgSender()), "Inventory: non-approved sender");
_owners[nftId] = uint256(tokenOwner) | _APPROVAL_BIT_TOKEN_OWNER_;
_nftApprovals[nftId] = to;
emit Approval(tokenOwner, to, nftId);
}
/// @dev See {IERC721-getApproved(uint256)}.
function getApproved(uint256 nftId) external view virtual override returns (address) {
uint256 tokenOwner = _owners[nftId];
require(address(tokenOwner) != address(0), "Inventory: non-existing NFT");
if (tokenOwner & _APPROVAL_BIT_TOKEN_OWNER_ != 0) {
return _nftApprovals[nftId];
} else {
return address(0);
}
}
/// @dev See {IERC721-isApprovedForAll(address,address)} and {IERC1155-isApprovedForAll(address,address)}
function isApprovedForAll(address tokenOwner, address operator) public view virtual override(IERC721, ERC1155InventoryBase) returns (bool) {
return ERC1155InventoryBase.isApprovedForAll(tokenOwner, operator);
}
/// @dev See {IERC721-isApprovedForAll(address,address)} and {IERC1155-isApprovedForAll(address,address)}
function setApprovalForAll(address operator, bool approved) public virtual override(IERC721, ERC1155InventoryBase) {
return ERC1155InventoryBase.setApprovalForAll(operator, approved);
}
/**
* Unsafely transfers a Non-Fungible Token (ERC721-compatible).
* @dev See {IERC1155721Inventory-transferFrom(address,address,uint256)}.
*/
function transferFrom(
address from,
address to,
uint256 nftId
) public virtual override {
_transferFrom(
from,
to,
nftId,
"",
/* safe */
false
);
}
/**
* Safely transfers a Non-Fungible Token (ERC721-compatible).
* @dev See {IERC1155721Inventory-safeTransferFrom(address,address,uint256)}.
*/
function safeTransferFrom(
address from,
address to,
uint256 nftId
) public virtual override {
_transferFrom(
from,
to,
nftId,
"",
/* safe */
true
);
}
/**
* Safely transfers a Non-Fungible Token (ERC721-compatible).
* @dev See {IERC1155721Inventory-safeTransferFrom(address,address,uint256,bytes)}.
*/
function safeTransferFrom(
address from,
address to,
uint256 nftId,
bytes memory data
) public virtual override {
_transferFrom(
from,
to,
nftId,
data,
/* safe */
true
);
}
/**
* Unsafely transfers a batch of Non-Fungible Tokens (ERC721-compatible).
* @dev See {IERC1155721BatchTransfer-batchTransferFrom(address,address,uint256[])}.
*/
function batchTransferFrom(
address from,
address to,
uint256[] memory nftIds
) public virtual override {
require(to != address(0), "Inventory: transfer to zero");
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
uint256 length = nftIds.length;
uint256[] memory values = new uint256[](length);
uint256 nfCollectionId;
uint256 nfCollectionCount;
for (uint256 i; i != length; ++i) {
uint256 nftId = nftIds[i];
values[i] = 1;
_transferNFT(from, to, nftId, 1, operatable, true);
emit Transfer(from, to, nftId);
uint256 nextCollectionId = nftId.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_transferNFTUpdateCollection(from, to, nfCollectionId, nfCollectionCount);
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
}
if (nfCollectionId != 0) {
_transferNFTUpdateCollection(from, to, nfCollectionId, nfCollectionCount);
_transferNFTUpdateBalances(from, to, length);
}
emit TransferBatch(_msgSender(), from, to, nftIds, values);
if (to.isContract() && _isERC1155TokenReceiver(to)) {
_callOnERC1155BatchReceived(from, to, nftIds, values, "");
}
}
/// @dev See {IERC721Metadata-tokenURI(uint256)}.
function tokenURI(uint256 nftId) external view virtual override returns (string memory) {
require(address(_owners[nftId]) != address(0), "Inventory: non-existing NFT");
return uri(nftId);
}
//================================== ERC1155 =======================================/
/**
* Safely transfers some token (ERC1155-compatible).
* @dev See {IERC1155721Inventory-safeTransferFrom(address,address,uint256,uint256,bytes)}.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 value,
bytes memory data
) public virtual override {
address sender = _msgSender();
require(to != address(0), "Inventory: transfer to zero");
bool operatable = _isOperatable(from, sender);
if (id.isFungibleToken()) {
_transferFungible(from, to, id, value, operatable);
} else if (id.isNonFungibleToken()) {
_transferNFT(from, to, id, value, operatable, false);
emit Transfer(from, to, id);
} else {
revert("Inventory: not a token id");
}
emit TransferSingle(sender, from, to, id, value);
if (to.isContract()) {
_callOnERC1155Received(from, to, id, value, data);
}
}
/**
* Safely transfers a batch of tokens (ERC1155-compatible).
* @dev See {IERC1155721Inventory-safeBatchTransferFrom(address,address,uint256[],uint256[],bytes)}.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) public virtual override {
// internal function to avoid stack too deep error
_safeBatchTransferFrom(from, to, ids, values, data);
}
//================================== ERC1155MetadataURI =======================================/
/// @dev See {IERC1155MetadataURI-uri(uint256)}.
function uri(uint256) public view virtual override returns (string memory);
//================================== ABI-level Internal Functions =======================================/
/**
* Safely or unsafely transfers some token (ERC721-compatible).
* @dev For `safe` transfer, see {IERC1155721Inventory-transferFrom(address,address,uint256)}.
* @dev For un`safe` transfer, see {IERC1155721Inventory-safeTransferFrom(address,address,uint256,bytes)}.
*/
function _transferFrom(
address from,
address to,
uint256 nftId,
bytes memory data,
bool safe
) internal {
require(to != address(0), "Inventory: transfer to zero");
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
_transferNFT(from, to, nftId, 1, operatable, false);
emit Transfer(from, to, nftId);
emit TransferSingle(sender, from, to, nftId, 1);
if (to.isContract()) {
if (_isERC1155TokenReceiver(to)) {
_callOnERC1155Received(from, to, nftId, 1, data);
} else if (safe) {
_callOnERC721Received(from, to, nftId, data);
}
}
}
/**
* Safely transfers a batch of tokens (ERC1155-compatible).
* @dev See {IERC1155721Inventory-safeBatchTransferFrom(address,address,uint256[],uint256[],bytes)}.
*/
function _safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) internal {
require(to != address(0), "Inventory: transfer to zero");
uint256 length = ids.length;
require(length == values.length, "Inventory: inconsistent arrays");
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
uint256 nfCollectionId;
uint256 nfCollectionCount;
uint256 nftsCount;
for (uint256 i; i != length; ++i) {
uint256 id = ids[i];
if (id.isFungibleToken()) {
_transferFungible(from, to, id, values[i], operatable);
} else if (id.isNonFungibleToken()) {
_transferNFT(from, to, id, values[i], operatable, true);
emit Transfer(from, to, id);
uint256 nextCollectionId = id.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_transferNFTUpdateCollection(from, to, nfCollectionId, nfCollectionCount);
nfCollectionId = nextCollectionId;
nftsCount += nfCollectionCount;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
} else {
revert("Inventory: not a token id");
}
}
if (nfCollectionId != 0) {
_transferNFTUpdateCollection(from, to, nfCollectionId, nfCollectionCount);
nftsCount += nfCollectionCount;
_transferNFTUpdateBalances(from, to, nftsCount);
}
emit TransferBatch(_msgSender(), from, to, ids, values);
if (to.isContract()) {
_callOnERC1155BatchReceived(from, to, ids, values, data);
}
}
/**
* Safely or unsafely mints some token (ERC721-compatible).
* @dev For `safe` mint, see {IERC1155721InventoryMintable-mint(address,uint256)}.
* @dev For un`safe` mint, see {IERC1155721InventoryMintable-safeMint(address,uint256,bytes)}.
*/
function _mint(
address to,
uint256 nftId,
bytes memory data,
bool safe
) internal {
require(to != address(0), "Inventory: transfer to zero");
require(nftId.isNonFungibleToken(), "Inventory: not an NFT");
_mintNFT(to, nftId, 1, false);
emit Transfer(address(0), to, nftId);
emit TransferSingle(_msgSender(), address(0), to, nftId, 1);
if (to.isContract()) {
if (_isERC1155TokenReceiver(to)) {
_callOnERC1155Received(address(0), to, nftId, 1, data);
} else if (safe) {
_callOnERC721Received(address(0), to, nftId, data);
}
}
}
/**
* Unsafely mints a batch of Non-Fungible Tokens (ERC721-compatible).
* @dev See {IERC1155721InventoryMintable-batchMint(address,uint256[])}.
*/
function _batchMint(address to, uint256[] memory nftIds) internal {
require(to != address(0), "Inventory: transfer to zero");
uint256 length = nftIds.length;
uint256[] memory values = new uint256[](length);
uint256 nfCollectionId;
uint256 nfCollectionCount;
for (uint256 i; i != length; ++i) {
uint256 nftId = nftIds[i];
require(nftId.isNonFungibleToken(), "Inventory: not an NFT");
values[i] = 1;
_mintNFT(to, nftId, 1, true);
emit Transfer(address(0), to, nftId);
uint256 nextCollectionId = nftId.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_balances[nfCollectionId][to] += nfCollectionCount;
_supplies[nfCollectionId] += nfCollectionCount;
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
}
_balances[nfCollectionId][to] += nfCollectionCount;
_supplies[nfCollectionId] += nfCollectionCount;
_nftBalances[to] += length;
emit TransferBatch(_msgSender(), address(0), to, nftIds, values);
if (to.isContract() && _isERC1155TokenReceiver(to)) {
_callOnERC1155BatchReceived(address(0), to, nftIds, values, "");
}
}
/**
* Safely mints some token (ERC1155-compatible).
* @dev See {IERC1155721InventoryMintable-safeMint(address,uint256,uint256,bytes)}.
*/
function _safeMint(
address to,
uint256 id,
uint256 value,
bytes memory data
) internal virtual {
require(to != address(0), "Inventory: transfer to zero");
address sender = _msgSender();
if (id.isFungibleToken()) {
_mintFungible(to, id, value);
} else if (id.isNonFungibleToken()) {
_mintNFT(to, id, value, false);
emit Transfer(address(0), to, id);
} else {
revert("Inventory: not a token id");
}
emit TransferSingle(sender, address(0), to, id, value);
if (to.isContract()) {
_callOnERC1155Received(address(0), to, id, value, data);
}
}
/**
* Safely mints a batch of tokens (ERC1155-compatible).
* @dev See {IERC1155721InventoryMintable-safeBatchMint(address,uint256[],uint256[],bytes)}.
*/
function _safeBatchMint(
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) internal virtual {
require(to != address(0), "Inventory: transfer to zero");
uint256 length = ids.length;
require(length == values.length, "Inventory: inconsistent arrays");
uint256 nfCollectionId;
uint256 nfCollectionCount;
uint256 nftsCount;
for (uint256 i; i != length; ++i) {
uint256 id = ids[i];
uint256 value = values[i];
if (id.isFungibleToken()) {
_mintFungible(to, id, value);
} else if (id.isNonFungibleToken()) {
_mintNFT(to, id, value, true);
emit Transfer(address(0), to, id);
uint256 nextCollectionId = id.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_balances[nfCollectionId][to] += nfCollectionCount;
_supplies[nfCollectionId] += nfCollectionCount;
nfCollectionId = nextCollectionId;
nftsCount += nfCollectionCount;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
} else {
revert("Inventory: not a token id");
}
}
if (nfCollectionId != 0) {
_balances[nfCollectionId][to] += nfCollectionCount;
_supplies[nfCollectionId] += nfCollectionCount;
nftsCount += nfCollectionCount;
_nftBalances[to] += nftsCount;
}
emit TransferBatch(_msgSender(), address(0), to, ids, values);
if (to.isContract()) {
_callOnERC1155BatchReceived(address(0), to, ids, values, data);
}
}
//============================== Internal Helper Functions =======================================/
function _mintFungible(
address to,
uint256 id,
uint256 value
) internal {
require(value != 0, "Inventory: zero value");
uint256 supply = _supplies[id];
uint256 newSupply = supply + value;
require(newSupply > supply, "Inventory: supply overflow");
_supplies[id] = newSupply;
// cannot overflow as supply cannot overflow
_balances[id][to] += value;
}
function _mintNFT(
address to,
uint256 id,
uint256 value,
bool isBatch
) internal {
require(value == 1, "Inventory: wrong NFT value");
require(_owners[id] == 0, "Inventory: existing/burnt NFT");
_owners[id] = uint256(to);
if (!isBatch) {
uint256 collectionId = id.getNonFungibleCollection();
// it is virtually impossible that a non-fungible collection supply
// overflows due to the cost of minting individual tokens
++_supplies[collectionId];
++_balances[collectionId][to];
++_nftBalances[to];
}
}
function _transferFungible(
address from,
address to,
uint256 id,
uint256 value,
bool operatable
) internal {
require(operatable, "Inventory: non-approved sender");
require(value != 0, "Inventory: zero value");
uint256 balance = _balances[id][from];
require(balance >= value, "Inventory: not enough balance");
if (from != to) {
_balances[id][from] = balance - value;
// cannot overflow as supply cannot overflow
_balances[id][to] += value;
}
}
function _transferNFT(
address from,
address to,
uint256 id,
uint256 value,
bool operatable,
bool isBatch
) internal virtual {
require(value == 1, "Inventory: wrong NFT value");
uint256 owner = _owners[id];
require(from == address(owner), "Inventory: non-owned NFT");
if (!operatable) {
require((owner & _APPROVAL_BIT_TOKEN_OWNER_ != 0) && _msgSender() == _nftApprovals[id], "Inventory: non-approved sender");
}
_owners[id] = uint256(to);
if (!isBatch) {
_transferNFTUpdateBalances(from, to, 1);
_transferNFTUpdateCollection(from, to, id.getNonFungibleCollection(), 1);
}
}
function _transferNFTUpdateBalances(
address from,
address to,
uint256 amount
) internal virtual {
if (from != to) {
// cannot underflow as balance is verified through ownership
_nftBalances[from] -= amount;
// cannot overflow as supply cannot overflow
_nftBalances[to] += amount;
}
}
function _transferNFTUpdateCollection(
address from,
address to,
uint256 collectionId,
uint256 amount
) internal virtual {
if (from != to) {
// cannot underflow as balance is verified through ownership
_balances[collectionId][from] -= amount;
// cannot overflow as supply cannot overflow
_balances[collectionId][to] += amount;
}
}
///////////////////////////////////// Receiver Calls Internal /////////////////////////////////////
/**
* Queries whether a contract implements ERC1155TokenReceiver.
* @param _contract address of the contract.
* @return wheter the given contract implements ERC1155TokenReceiver.
*/
function _isERC1155TokenReceiver(address _contract) internal view returns (bool) {
bool success;
bool result;
bytes memory staticCallData = abi.encodeWithSelector(_ERC165_INTERFACE_ID, _ERC1155_TOKEN_RECEIVER_INTERFACE_ID);
assembly {
let call_ptr := add(0x20, staticCallData)
let call_size := mload(staticCallData)
let output := mload(0x40) // Find empty storage location using "free memory pointer"
mstore(output, 0x0)
success := staticcall(10000, _contract, call_ptr, call_size, output, 0x20) // 32 bytes
result := mload(output)
}
// (10000 / 63) "not enough for supportsInterface(...)" // consume all gas, so caller can potentially know that there was not enough gas
assert(gasleft() > 158);
return success && result;
}
/**
* Calls {IERC721Receiver-onERC721Received} on a target contract.
* @dev Reverts if `to` is not a contract.
* @dev Reverts if the call to the target fails or is refused.
* @param from Previous token owner.
* @param to New token owner.
* @param nftId Identifier of the token transferred.
* @param data Optional data to send along with the receiver contract call.
*/
function _callOnERC721Received(
address from,
address to,
uint256 nftId,
bytes memory data
) internal {
require(IERC721Receiver(to).onERC721Received(_msgSender(), from, nftId, data) == _ERC721_RECEIVED, "Inventory: transfer refused");
}
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155721/IERC1155721InventoryBurnable.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title IERC1155721InventoryBurnable interface.
* The function {IERC721Burnable-burnFrom(address,uint256)} is not provided as
* {IERC1155Burnable-burnFrom(address,uint256,uint256)} can be used instead.
*/
interface IERC1155721InventoryBurnable {
/**
* Burns some token (ERC1155-compatible).
* @dev Reverts if the sender is not approved.
* @dev Reverts if `id` does not represent a token.
* @dev Reverts if `id` represents a fungible token and `value` is 0.
* @dev Reverts if `id` represents a fungible token and `value` is higher than `from`'s balance.
* @dev Reverts if `id` represents a non-fungible token and `value` is not 1.
* @dev Reverts if `id` represents a non-fungible token which is not owned by `from`.
* @dev Emits an {IERC721-Transfer} event to the zero address if `id` represents a non-fungible token.
* @dev Emits an {IERC1155-TransferSingle} event to the zero address.
* @param from Address of the current token owner.
* @param id Identifier of the token to burn.
* @param value Amount of token to burn.
*/
function burnFrom(
address from,
uint256 id,
uint256 value
) external;
/**
* Burns multiple tokens (ERC1155-compatible).
* @dev Reverts if `ids` and `values` have different lengths.
* @dev Reverts if the sender is not approved.
* @dev Reverts if one of `ids` does not represent a token.
* @dev Reverts if one of `ids` represents a fungible token and `value` is 0.
* @dev Reverts if one of `ids` represents a fungible token and `value` is higher than `from`'s balance.
* @dev Reverts if one of `ids` represents a non-fungible token and `value` is not 1.
* @dev Reverts if one of `ids` represents a non-fungible token which is not owned by `from`.
* @dev Emits an {IERC721-Transfer} event to the zero address for each burnt non-fungible token.
* @dev Emits an {IERC1155-TransferBatch} event to the zero address.
* @param from Address of the current tokens owner.
* @param ids Identifiers of the tokens to burn.
* @param values Amounts of tokens to burn.
*/
function batchBurnFrom(
address from,
uint256[] calldata ids,
uint256[] calldata values
) external;
/**
* Burns a batch of Non-Fungible Tokens (ERC721-compatible).
* @dev Reverts if the sender is not approved.
* @dev Reverts if one of `nftIds` does not represent a non-fungible token.
* @dev Reverts if one of `nftIds` is not owned by `from`.
* @dev Emits an {IERC721-Transfer} event to the zero address for each of `nftIds`.
* @dev Emits an {IERC1155-TransferBatch} event to the zero address.
* @param from Current token owner.
* @param nftIds Identifiers of the tokens to transfer.
*/
function batchBurnFrom(address from, uint256[] calldata nftIds) external;
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155721/ERC1155721InventoryBurnable.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC1155721InventoryBurnable, a burnable ERC1155721Inventory.
*/
abstract contract ERC1155721InventoryBurnable is IERC1155721InventoryBurnable, ERC1155721Inventory {
//============================== ERC1155721InventoryBurnable =======================================/
/**
* Burns some token (ERC1155-compatible).
* @dev See {IERC1155721InventoryBurnable-burnFrom(address,uint256,uint256)}.
*/
function burnFrom(
address from,
uint256 id,
uint256 value
) public virtual override {
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
if (id.isFungibleToken()) {
_burnFungible(from, id, value, operatable);
} else if (id.isNonFungibleToken()) {
_burnNFT(from, id, value, operatable, false);
emit Transfer(from, address(0), id);
} else {
revert("Inventory: not a token id");
}
emit TransferSingle(sender, from, address(0), id, value);
}
/**
* Burns a batch of token (ERC1155-compatible).
* @dev See {IERC1155721InventoryBurnable-batchBurnFrom(address,uint256[],uint256[])}.
*/
function batchBurnFrom(
address from,
uint256[] memory ids,
uint256[] memory values
) public virtual override {
uint256 length = ids.length;
require(length == values.length, "Inventory: inconsistent arrays");
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
uint256 nfCollectionId;
uint256 nfCollectionCount;
uint256 nftsCount;
for (uint256 i; i != length; ++i) {
uint256 id = ids[i];
if (id.isFungibleToken()) {
_burnFungible(from, id, values[i], operatable);
} else if (id.isNonFungibleToken()) {
_burnNFT(from, id, values[i], operatable, true);
emit Transfer(from, address(0), id);
uint256 nextCollectionId = id.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_burnNFTUpdateCollection(from, nfCollectionId, nfCollectionCount);
nfCollectionId = nextCollectionId;
nftsCount += nfCollectionCount;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
} else {
revert("Inventory: not a token id");
}
}
if (nfCollectionId != 0) {
_burnNFTUpdateCollection(from, nfCollectionId, nfCollectionCount);
nftsCount += nfCollectionCount;
// cannot underflow as balance is verified through ownership
_nftBalances[from] -= nftsCount;
}
emit TransferBatch(sender, from, address(0), ids, values);
}
/**
* Burns a batch of token (ERC721-compatible).
* @dev See {IERC1155721InventoryBurnable-batchBurnFrom(address,uint256[])}.
*/
function batchBurnFrom(address from, uint256[] memory nftIds) public virtual override {
address sender = _msgSender();
bool operatable = _isOperatable(from, sender);
uint256 length = nftIds.length;
uint256[] memory values = new uint256[](length);
uint256 nfCollectionId;
uint256 nfCollectionCount;
for (uint256 i; i != length; ++i) {
uint256 nftId = nftIds[i];
values[i] = 1;
_burnNFT(from, nftId, values[i], operatable, true);
emit Transfer(from, address(0), nftId);
uint256 nextCollectionId = nftId.getNonFungibleCollection();
if (nfCollectionId == 0) {
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
if (nextCollectionId != nfCollectionId) {
_burnNFTUpdateCollection(from, nfCollectionId, nfCollectionCount);
nfCollectionId = nextCollectionId;
nfCollectionCount = 1;
} else {
++nfCollectionCount;
}
}
}
if (nfCollectionId != 0) {
_burnNFTUpdateCollection(from, nfCollectionId, nfCollectionCount);
_nftBalances[from] -= length;
}
emit TransferBatch(sender, from, address(0), nftIds, values);
}
//============================== Internal Helper Functions =======================================/
function _burnFungible(
address from,
uint256 id,
uint256 value,
bool operatable
) internal {
require(value != 0, "Inventory: zero value");
require(operatable, "Inventory: non-approved sender");
uint256 balance = _balances[id][from];
require(balance >= value, "Inventory: not enough balance");
_balances[id][from] = balance - value;
// Cannot underflow
_supplies[id] -= value;
}
function _burnNFT(
address from,
uint256 id,
uint256 value,
bool operatable,
bool isBatch
) internal virtual {
require(value == 1, "Inventory: wrong NFT value");
uint256 owner = _owners[id];
require(from == address(owner), "Inventory: non-owned NFT");
if (!operatable) {
require((owner & _APPROVAL_BIT_TOKEN_OWNER_ != 0) && _msgSender() == _nftApprovals[id], "Inventory: non-approved sender");
}
_owners[id] = _BURNT_NFT_OWNER;
if (!isBatch) {
_burnNFTUpdateCollection(from, id.getNonFungibleCollection(), 1);
// cannot underflow as balance is verified through NFT ownership
--_nftBalances[from];
}
}
function _burnNFTUpdateCollection(
address from,
uint256 collectionId,
uint256 amount
) internal virtual {
// cannot underflow as balance is verified through NFT ownership
_balances[collectionId][from] -= amount;
_supplies[collectionId] -= amount;
}
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155721/IERC1155721InventoryMintable.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title IERC1155721InventoryMintable interface.
* The function {IERC721Mintable-safeMint(address,uint256,bytes)} is not provided as
* {IERC1155Mintable-safeMint(address,uint256,uint256,bytes)} can be used instead.
*/
interface IERC1155721InventoryMintable {
/**
* Safely mints some token (ERC1155-compatible).
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `id` is not a token.
* @dev Reverts if `id` represents a non-fungible token and `value` is not 1.
* @dev Reverts if `id` represents a non-fungible token which has already been minted.
* @dev Reverts if `id` represents a fungible token and `value` is 0.
* @dev Reverts if `id` represents a fungible token and there is an overflow of supply.
* @dev Reverts if `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155Received} fails or is refused.
* @dev Emits an {IERC721-Transfer} event from the zero address if `id` represents a non-fungible token.
* @dev Emits an {IERC1155-TransferSingle} event from the zero address.
* @param to Address of the new token owner.
* @param id Identifier of the token to mint.
* @param value Amount of token to mint.
* @param data Optional data to send along to a receiver contract.
*/
function safeMint(
address to,
uint256 id,
uint256 value,
bytes calldata data
) external;
/**
* Safely mints a batch of tokens (ERC1155-compatible).
* @dev Reverts if `ids` and `values` have different lengths.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if one of `ids` is not a token.
* @dev Reverts if one of `ids` represents a non-fungible token and its paired value is not 1.
* @dev Reverts if one of `ids` represents a non-fungible token which has already been minted.
* @dev Reverts if one of `ids` represents a fungible token and its paired value is 0.
* @dev Reverts if one of `ids` represents a fungible token and there is an overflow of supply.
* @dev Reverts if `to` is a contract and the call to {IERC1155TokenReceiver-onERC1155batchReceived} fails or is refused.
* @dev Emits an {IERC721-Transfer} event from the zero address for each non-fungible token minted.
* @dev Emits an {IERC1155-TransferBatch} event from the zero address.
* @param to Address of the new tokens owner.
* @param ids Identifiers of the tokens to mint.
* @param values Amounts of tokens to mint.
* @param data Optional data to send along to a receiver contract.
*/
function safeBatchMint(
address to,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external;
/**
* Unsafely mints a Non-Fungible Token (ERC721-compatible).
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `nftId` does not represent a non-fungible token.
* @dev Reverts if `nftId` has already been minted.
* @dev Emits an {IERC721-Transfer} event from the zero address.
* @dev Emits an {IERC1155-TransferSingle} event from the zero address.
* @dev If `to` is a contract and supports ERC1155TokenReceiver, calls {IERC1155TokenReceiver-onERC1155Received} with empty data.
* @param to Address of the new token owner.
* @param nftId Identifier of the token to mint.
*/
function mint(address to, uint256 nftId) external;
/**
* Unsafely mints a batch of Non-Fungible Tokens (ERC721-compatible).
* @dev Reverts if `to` is the zero address.
* @dev Reverts if one of `nftIds` does not represent a non-fungible token.
* @dev Reverts if one of `nftIds` has already been minted.
* @dev Emits an {IERC721-Transfer} event from the zero address for each of `nftIds`.
* @dev Emits an {IERC1155-TransferBatch} event from the zero address.
* @dev If `to` is a contract and supports ERC1155TokenReceiver, calls {IERC1155TokenReceiver-onERC1155BatchReceived} with empty data.
* @param to Address of the new token owner.
* @param nftIds Identifiers of the tokens to mint.
*/
function batchMint(address to, uint256[] calldata nftIds) external;
/**
* Safely mints a token (ERC721-compatible).
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `tokenId` has already ben minted.
* @dev Reverts if `to` is a contract which does not implement IERC721Receiver or IERC1155TokenReceiver.
* @dev Reverts if `to` is an IERC1155TokenReceiver or IERC721TokenReceiver contract which refuses the transfer.
* @dev Emits an {IERC721-Transfer} event from the zero address.
* @dev Emits an {IERC1155-TransferSingle} event from the zero address.
* @param to Address of the new token owner.
* @param nftId Identifier of the token to mint.
* @param data Optional data to pass along to the receiver call.
*/
function safeMint(
address to,
uint256 nftId,
bytes calldata data
) external;
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/token/ERC1155/IERC1155InventoryCreator.sol@v7.1.0
pragma solidity 0.6.8;
/**
* @title ERC-1155 Inventory, additional creator interface
* @dev See https://eips.ethereum.org/EIPS/eip-1155
*/
interface IERC1155InventoryCreator {
/**
* Returns the creator of a collection, or the zero address if the collection has not been created.
* @dev Reverts if `collectionId` does not represent a collection.
* @param collectionId Identifier of the collection.
* @return The creator of a collection, or the zero address if the collection has not been created.
*/
function creator(uint256 collectionId) external view returns (address);
}
// File @openzeppelin/contracts/access/Ownable.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// File @animoca/ethereum-contracts-core_library/contracts/utils/types/UInt256ToDecimalString.sol@v4.0.2
pragma solidity 0.6.8;
library UInt256ToDecimalString {
function toDecimalString(uint256 value) internal pure returns (string memory) {
// Inspired by OpenZeppelin's String.toString() implementation - MIT licence
// https://github.com/OpenZeppelin/openzeppelin-contracts/blob/8b10cb38d8fedf34f2d89b0ed604f2dceb76d6a9/contracts/utils/Strings.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
uint256 index = digits - 1;
temp = value;
while (temp != 0) {
buffer[index--] = bytes1(uint8(48 + (temp % 10)));
temp /= 10;
}
return string(buffer);
}
}
// File @animoca/ethereum-contracts-assets_inventory/contracts/metadata/BaseMetadataURI.sol@v7.1.0
pragma solidity 0.6.8;
contract BaseMetadataURI is Ownable {
using UInt256ToDecimalString for uint256;
event BaseMetadataURISet(string baseMetadataURI);
string public baseMetadataURI;
function setBaseMetadataURI(string calldata baseMetadataURI_) external onlyOwner {
baseMetadataURI = baseMetadataURI_;
emit BaseMetadataURISet(baseMetadataURI_);
}
function _uri(uint256 id) internal view virtual returns (string memory) {
return string(abi.encodePacked(baseMetadataURI, id.toDecimalString()));
}
}
// File @openzeppelin/contracts/utils/EnumerableSet.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping (bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) { // Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
// When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
// so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.
bytes32 lastvalue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastvalue;
// Update the index for the moved value
set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
require(set._values.length > index, "EnumerableSet: index out of bounds");
return set._values[index];
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(value)));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(value)));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(value)));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint256(_at(set._inner, index)));
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
}
// File @openzeppelin/contracts/access/AccessControl.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms.
*
* 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:
*
* ```
* 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}:
*
* ```
* 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.
*/
abstract contract AccessControl is Context {
using EnumerableSet for EnumerableSet.AddressSet;
using Address for address;
struct RoleData {
EnumerableSet.AddressSet members;
bytes32 adminRole;
}
mapping (bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @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.
*
* _Available since v3.1._
*/
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, an admin role
* bearer except when using {_setupRole}.
*/
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) public view returns (bool) {
return _roles[role].members.contains(account);
}
/**
* @dev Returns the number of accounts that have `role`. Can be used
* together with {getRoleMember} to enumerate all bearers of a role.
*/
function getRoleMemberCount(bytes32 role) public view returns (uint256) {
return _roles[role].members.length();
}
/**
* @dev Returns one of the accounts that have `role`. `index` must be a
* value between 0 and {getRoleMemberCount}, non-inclusive.
*
* Role bearers are not sorted in any particular way, and their ordering may
* change at any point.
*
* WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
* you perform all queries on the same block. See the following
* https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
* for more information.
*/
function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
return _roles[role].members.at(index);
}
/**
* @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 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.
*/
function grantRole(bytes32 role, address account) public virtual {
require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");
_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.
*/
function revokeRole(bytes32 role, address account) public virtual {
require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");
_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 granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) public virtual {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);
_roles[role].adminRole = adminRole;
}
function _grantRole(bytes32 role, address account) private {
if (_roles[role].members.add(account)) {
emit RoleGranted(role, account, _msgSender());
}
}
function _revokeRole(bytes32 role, address account) private {
if (_roles[role].members.remove(account)) {
emit RoleRevoked(role, account, _msgSender());
}
}
}
// File @animoca/ethereum-contracts-core_library/contracts/access/MinterRole.sol@v4.0.2
pragma solidity 0.6.8;
/**
* Contract module which allows derived contracts access control over token
* minting operations.
*
* This module is used through inheritance. It will make available the modifier
* `onlyMinter`, which can be applied to the minting functions of your contract.
* Those functions will only be accessible to accounts with the minter role
* once the modifer is put in place.
*/
contract MinterRole is AccessControl {
event MinterAdded(address indexed account);
event MinterRemoved(address indexed account);
/**
* Modifier to make a function callable only by accounts with the minter role.
*/
modifier onlyMinter() {
require(isMinter(_msgSender()), "MinterRole: not a Minter");
_;
}
/**
* Constructor.
*/
constructor() internal {
_setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
emit MinterAdded(_msgSender());
}
/**
* Validates whether or not the given account has been granted the minter role.
* @param account The account to validate.
* @return True if the account has been granted the minter role, false otherwise.
*/
function isMinter(address account) public view returns (bool) {
return hasRole(DEFAULT_ADMIN_ROLE, account);
}
/**
* Grants the minter role to a non-minter.
* @param account The account to grant the minter role to.
*/
function addMinter(address account) public onlyMinter {
require(!isMinter(account), "MinterRole: already Minter");
grantRole(DEFAULT_ADMIN_ROLE, account);
emit MinterAdded(account);
}
/**
* Renounces the granted minter role.
*/
function renounceMinter() public onlyMinter {
renounceRole(DEFAULT_ADMIN_ROLE, _msgSender());
emit MinterRemoved(_msgSender());
}
}
// File @openzeppelin/contracts/utils/Pausable.sol@v3.3.0
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor () internal {
_paused = false;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view returns (bool) {
return _paused;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
require(!_paused, "Pausable: paused");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
require(_paused, "Pausable: not paused");
_;
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// File contracts/solc-0.6/token/ERC1155721/REVVInventory.sol
pragma solidity ^0.6.8;
contract REVVInventory is
Ownable,
Pausable,
ERC1155721InventoryBurnable,
IERC1155721InventoryMintable,
IERC1155InventoryCreator,
BaseMetadataURI,
MinterRole
{
// solhint-disable-next-line const-name-snakecase
string public constant override name = "REVV Inventory";
// solhint-disable-next-line const-name-snakecase
string public constant override symbol = "REVV-I";
//================================== ERC1155MetadataURI =======================================/
/// @dev See {IERC1155MetadataURI-uri(uint256)}.
function uri(uint256 id) public view virtual override returns (string memory) {
return _uri(id);
}
//================================== ERC1155InventoryCreator =======================================/
/// @dev See {IERC1155InventoryCreator-creator(uint256)}.
function creator(uint256 collectionId) external view override returns (address) {
return _creator(collectionId);
}
// ===================================================================================================
// Admin Public Functions
// ===================================================================================================
//================================== Pausable =======================================/
function pause() external virtual {
require(owner() == _msgSender(), "Inventory: not the owner");
_pause();
}
function unpause() external virtual {
require(owner() == _msgSender(), "Inventory: not the owner");
_unpause();
}
//================================== ERC1155Inventory =======================================/
/**
* Creates a collection.
* @dev Reverts if `collectionId` does not represent a collection.
* @dev Reverts if `collectionId` has already been created.
* @dev Emits a {IERC1155Inventory-CollectionCreated} event.
* @param collectionId Identifier of the collection.
*/
function createCollection(uint256 collectionId) external onlyOwner {
_createCollection(collectionId);
}
//================================== ERC1155721InventoryMintable =======================================/
/**
* Unsafely mints a Non-Fungible Token (ERC721-compatible).
* @dev See {IERC1155721InventoryMintable-batchMint(address,uint256)}.
*/
function mint(address to, uint256 nftId) public virtual override {
require(isMinter(_msgSender()), "Inventory: not a minter");
_mint(to, nftId, "", false);
}
/**
* Unsafely mints a batch of Non-Fungible Tokens (ERC721-compatible).
* @dev See {IERC1155721InventoryMintable-batchMint(address,uint256[])}.
*/
function batchMint(address to, uint256[] memory nftIds) public virtual override {
require(isMinter(_msgSender()), "Inventory: not a minter");
_batchMint(to, nftIds);
}
/**
* Safely mints a Non-Fungible Token (ERC721-compatible).
* @dev See {IERC1155721InventoryMintable-safeMint(address,uint256,bytes)}.
*/
function safeMint(
address to,
uint256 nftId,
bytes memory data
) public virtual override {
require(isMinter(_msgSender()), "Inventory: not a minter");
_mint(to, nftId, data, true);
}
/**
* Safely mints some token (ERC1155-compatible).
* @dev See {IERC1155721InventoryMintable-safeMint(address,uint256,uint256,bytes)}.
*/
function safeMint(
address to,
uint256 id,
uint256 value,
bytes memory data
) public virtual override {
require(isMinter(_msgSender()), "Inventory: not a minter");
_safeMint(to, id, value, data);
}
/**
* Safely mints a batch of tokens (ERC1155-compatible).
* @dev See {IERC1155721InventoryMintable-safeBatchMint(address,uint256[],uint256[],bytes)}.
*/
function safeBatchMint(
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) public virtual override {
require(isMinter(_msgSender()), "Inventory: not a minter");
_safeBatchMint(to, ids, values, data);
}
//================================== ERC721 =======================================/
function transferFrom(
address from,
address to,
uint256 nftId
) public virtual override {
require(!paused(), "Inventory: paused");
super.transferFrom(from, to, nftId);
}
function batchTransferFrom(
address from,
address to,
uint256[] memory nftIds
) public virtual override {
require(!paused(), "Inventory: paused");
super.batchTransferFrom(from, to, nftIds);
}
function safeTransferFrom(
address from,
address to,
uint256 nftId
) public virtual override {
require(!paused(), "Inventory: paused");
super.safeTransferFrom(from, to, nftId);
}
function safeTransferFrom(
address from,
address to,
uint256 nftId,
bytes memory data
) public virtual override {
require(!paused(), "Inventory: paused");
super.safeTransferFrom(from, to, nftId, data);
}
function batchBurnFrom(address from, uint256[] memory nftIds) public virtual override {
require(!paused(), "Inventory: paused");
super.batchBurnFrom(from, nftIds);
}
//================================== ERC1155 =======================================/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 value,
bytes memory data
) public virtual override {
require(!paused(), "Inventory: paused");
super.safeTransferFrom(from, to, id, value, data);
}
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory values,
bytes memory data
) public virtual override {
require(!paused(), "Inventory: paused");
super.safeBatchTransferFrom(from, to, ids, values, data);
}
function burnFrom(
address from,
uint256 id,
uint256 value
) public virtual override {
require(!paused(), "Inventory: paused");
super.burnFrom(from, id, value);
}
function batchBurnFrom(
address from,
uint256[] memory ids,
uint256[] memory values
) public virtual override {
require(!paused(), "Inventory: paused");
super.batchBurnFrom(from, ids, values);
}
}Settings
{
"compilationTarget": {
"REVVInventory.sol": "REVVInventory"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 2000
},
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