ERC721AssetVault
ERC721AssetVault
_inventory
mapping(address => mapping(uint256 => address)) _inventory
Vault inventory Mapping token address -> token ID -> owner.
constructor
constructor(address operator, address acl) public
Constructor.
| Name | Type | Description |
|---|---|---|
| operator | address | First operator account. |
| acl | address | ACL contract address |
onERC721Received
function onERC721Received(address operator, address from, uint256 tokenId, bytes) external returns (bytes4)
_Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called.
It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`._
returnToOwner
function returnToOwner(address token, uint256 tokenId) external
Transfers the asset to the original owner, registered upon deposit. NOTE: The asset is always returns to the owner. There is no way to send the `asset` to an arbitrary address.
| Name | Type | Description |
|---|---|---|
| token | address | Token address. |
| tokenId | uint256 | Token ID. |
assetClass
function assetClass() external pure returns (bytes4)
Returns vault asset class.
| Name | Type | Description |
|---|---|---|
| [0] | bytes4 | Asset class ID. |
supportsInterface
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool)
_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._