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Contract Name:
ERC721Holder
Compiler Version
v0.8.16+commit.07a7930e
Optimization Enabled:
Yes with 99999 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
// Copyright 2022 PROOF Holdings Inc
pragma solidity >=0.8.16 <0.9.0;
import {IMoonbirds} from "moonbirds/IMoonbirds.sol";
import {IERC721} from "openzeppelin-contracts/token/ERC721/IERC721.sol";
import {EnumerableSet} from
"openzeppelin-contracts/utils/structs/EnumerableSet.sol";
import {AccessControlEnumerable} from "ethier/utils/AccessControlEnumerable.sol";
import {IEligibilityConstraint} from "./IEligibilityConstraint.sol";
import {ANested} from "./Nested.sol";
import {
AMoonbirdConstraint,
AMoonbirdOwnerConstraint
} from "./MoonbirdConstraint.sol";
/**
* @notice Eligibility if the moonbird owner holds a token from another ERC721
* collection.
*/
abstract contract AERC721Holder is AMoonbirdOwnerConstraint {
/**
* @notice The collection of interest.
*/
IERC721 private immutable _token;
constructor(IERC721 token_) {
_token = token_;
}
/**
* @inheritdoc AMoonbirdOwnerConstraint
* @dev Returns true iff the moonbird holder also owns a token from a
* pre-defined collection.
*/
function isEligible(address owner)
public
view
virtual
override
returns (bool)
{
return _token.balanceOf(owner) > 0;
}
}
/**
* @notice Eligibility if the moonbird is nested and its owner also holds a
* token from another ERC721 collection.
*/
abstract contract ANestedERC721Holder is ANested, AERC721Holder {
/**
* @inheritdoc IEligibilityConstraint
* @dev Returns true iff the moonbird is nested and its holder also owns a
* token from a pre-defined collection.
*/
function isEligible(uint256 tokenId)
public
view
virtual
override(ANested, AMoonbirdOwnerConstraint)
returns (bool)
{
return ANested.isEligible(tokenId)
&& AMoonbirdOwnerConstraint.isEligible(tokenId);
}
}
/**
* @notice Eligibility if the moonbird owner holds a token from multiple other
* ERC721 collections.
*/
abstract contract AMultiERC721Holder is
AMoonbirdOwnerConstraint,
AccessControlEnumerable
{
using EnumerableSet for EnumerableSet.AddressSet;
/**
* @notice The collection of interest.
*/
EnumerableSet.AddressSet internal _tokens;
error NotERC721();
constructor(address admin, address steerer, IERC721[] memory tokens_) {
for (uint256 i = 0; i < tokens_.length; i++) {
_tokens.add(address(tokens_[i]));
}
_grantRole(DEFAULT_ADMIN_ROLE, admin);
_grantRole(DEFAULT_STEERING_ROLE, steerer);
}
/**
* @notice Adds new tokens to the eligibility constraint.
*/
function addToken(IERC721 token) public onlyRole(DEFAULT_STEERING_ROLE) {
if (!token.supportsInterface(type(IERC721).interfaceId)) {
revert NotERC721();
}
_tokens.add(address(token));
}
/**
* @notice Removes tokens from the eligibility constraint.
*/
function removeToken(IERC721 token)
public
onlyRole(DEFAULT_STEERING_ROLE)
{
_tokens.remove(address(token));
}
/**
* @notice Returns the list of tokens.
*/
function tokens() public view returns (IERC721[] memory) {
uint256 num = _tokens.length();
IERC721[] memory ts = new IERC721[](num);
for (uint256 i = 0; i < num; ++i) {
ts[i] = IERC721(_tokens.at(i));
}
return ts;
}
}
/**
* @notice Eligibility if the moonbird owner holds one of each from a list from
* a set of other ERC721 collections.
*/
abstract contract AOneOfEachERC721Holder is AMultiERC721Holder {
using EnumerableSet for EnumerableSet.AddressSet;
/**
* @inheritdoc AMoonbirdOwnerConstraint
* @dev Returns true iff the moonbird holder also owns token from a set of
* collection (one of each).
*/
function isEligible(address owner)
public
view
virtual
override
returns (bool)
{
uint256 num = _tokens.length();
for (uint256 i = 0; i < num; i++) {
IERC721 token = IERC721(_tokens.at(i));
if (token.balanceOf(owner) == 0) {
return false;
}
}
return true;
}
}
/**
* @notice Eligibility if the moonbird owner holds a token from another ERC721
* collection.
*/
contract ERC721Holder is AERC721Holder {
constructor(IERC721 token, IMoonbirds moonbirds)
AERC721Holder(token)
AMoonbirdConstraint(moonbirds)
{}
}
/**
* @notice Eligibility if the moonbird is nested and its owner also holds a
* token from another ERC721 collection.
*/
contract NestedERC721Holder is ANestedERC721Holder {
constructor(IERC721 token, IMoonbirds moonbirds)
AMoonbirdConstraint(moonbirds)
AERC721Holder(token)
{}
}
/**
* @notice Eligibility if the moonbird owner holds one of each from a list from
* a set of other ERC721 collections.
*/
contract OneOfEachERC721Holder is AMultiERC721Holder, AOneOfEachERC721Holder {
constructor(
address admin,
address steerer,
IERC721[] memory tokens_,
IMoonbirds moonbirds
)
AMoonbirdConstraint(moonbirds)
AMultiERC721Holder(admin, steerer, tokens_)
{}
}// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.10 <0.9.0;
import "@openzeppelin/contracts/interfaces/IERC721.sol";
/**
@dev A minimal interface for interaction with the Moonbirds contract.
*/
interface IMoonbirds is IERC721 {
function nestingPeriod(uint256 tokenId)
external
view
returns (
bool nesting,
uint256 current,
uint256 total
);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
pragma solidity ^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.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet.
* ====
*/
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;
if (lastIndex != toDeleteIndex) {
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] = valueIndex; // Replace lastValue's index to valueIndex
}
// 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) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// 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);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
bytes32[] memory store = _values(set._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// 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(uint160(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(uint160(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(uint160(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(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// 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 in 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));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}// SPDX-License-Identifier: MIT
// Copyright (c) 2023 the ethier authors (github.com/divergencetech/ethier)
pragma solidity >=0.8.0 <0.9.0;
import {AccessControlEnumerable as ACE} from "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
contract AccessControlEnumerable is ACE {
/// @notice The default role intended to perform access-restricted actions.
/// @dev We are using this instead of DEFAULT_ADMIN_ROLE because the latter
/// is intended to grant/revoke roles and will be secured differently.
bytes32 public constant DEFAULT_STEERING_ROLE =
keccak256("DEFAULT_STEERING_ROLE");
/// @dev Overrides supportsInterface so that inheriting contracts can
/// reference this contract instead of OZ's version for further overrides.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ACE)
returns (bool)
{
return ACE.supportsInterface(interfaceId);
}
}// SPDX-License-Identifier: MIT
// Copyright 2022 PROOF Holdings Inc
pragma solidity >=0.8.16 <0.9.0;
/**
* @notice Interface to encapsulate generic eligibility requirements.
* @dev This is intended to be used with the activation of Mutators.
*/
interface IEligibilityConstraint {
/**
* @notice Checks if a given moonbird is eligible.
*/
function isEligible(uint256 tokenId) external view returns (bool);
}// SPDX-License-Identifier: MIT
// Copyright 2022 PROOF Holdings Inc
pragma solidity >=0.8.16 <0.9.0;
import {IEligibilityConstraint} from "./IEligibilityConstraint.sol";
import {IMoonbirds} from "moonbirds/IMoonbirds.sol";
import {AMoonbirdConstraint} from "./MoonbirdConstraint.sol";
/**
* @notice Eligibility if a moonbird is nested.
*/
abstract contract ANested is AMoonbirdConstraint {
/**
* @inheritdoc IEligibilityConstraint
* @dev Returns true iff the moonbird is nested.
*/
function isEligible(uint256 tokenId) public view virtual returns (bool) {
(bool nesting,,) = _moonbirds.nestingPeriod(tokenId);
return nesting;
}
}
/**
* @notice Eligibility if a moonbird is nested since a given time.
*/
abstract contract ANestedSince is AMoonbirdConstraint {
/**
* @notice A moonbird has to be nested since this timestamp to be eligible.
*/
uint256 private immutable _sinceTimestamp;
constructor(uint256 sinceTimestamp_) {
_sinceTimestamp = sinceTimestamp_;
}
/**
* @inheritdoc IEligibilityConstraint
* @dev Returns true iff the moonbird is nested since a given time.
*/
function isEligible(uint256 tokenId) public view virtual returns (bool) {
(bool nested, uint256 current,) = _moonbirds.nestingPeriod(tokenId);
//solhint-disable-next-line not-rely-on-time
return nested && block.timestamp - current <= _sinceTimestamp;
}
}
/**
* @notice Eligibility if a moonbird is nested.
*/
contract Nested is ANested {
constructor(IMoonbirds moonbirds) AMoonbirdConstraint(moonbirds) {}
}
/**
* @notice Eligibility if a moonbird is nested since a given time.
*/
contract NestedSince is ANestedSince {
constructor(IMoonbirds moonbirds, uint256 sinceTimestamp)
AMoonbirdConstraint(moonbirds)
ANestedSince(sinceTimestamp)
{}
}// SPDX-License-Identifier: MIT
// Copyright 2022 PROOF Holdings Inc
pragma solidity >=0.8.16 <0.9.0;
import {IEligibilityConstraint} from "./IEligibilityConstraint.sol";
import {IMoonbirds} from "moonbirds/IMoonbirds.sol";
/**
* @notice Eligibility based on moonbird properties.
*/
abstract contract AMoonbirdConstraint is IEligibilityConstraint {
/**
* @notice The moonbird token.
*/
IMoonbirds internal immutable _moonbirds;
constructor(IMoonbirds moonbirds) {
_moonbirds = moonbirds;
}
}
/**
* @notice Eligibility based on moonbird owner properties.
*/
abstract contract AMoonbirdOwnerConstraint is AMoonbirdConstraint {
/**
* @inheritdoc IEligibilityConstraint
* @dev Returns true iff the holder of the given moonbird is eligible.
*/
function isEligible(uint256 tokenId) public view virtual returns (bool) {
return isEligible(_moonbirds.ownerOf(tokenId));
}
/**
* @notice Returns true iff a given moonbird owner is eligible.
* @dev Intended to be implemented by derived contracts.
*/
function isEligible(address owner) public view virtual returns (bool);
}// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol) pragma solidity ^0.8.0; import "../token/ERC721/IERC721.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol)
pragma solidity ^0.8.0;
import "./IAccessControlEnumerable.sol";
import "./AccessControl.sol";
import "../utils/structs/EnumerableSet.sol";
/**
* @dev Extension of {AccessControl} that allows enumerating the members of each role.
*/
abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
using EnumerableSet for EnumerableSet.AddressSet;
mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @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 virtual override returns (address) {
return _roleMembers[role].at(index);
}
/**
* @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 virtual override returns (uint256) {
return _roleMembers[role].length();
}
/**
* @dev Overload {_grantRole} to track enumerable memberships
*/
function _grantRole(bytes32 role, address account) internal virtual override {
super._grantRole(role, account);
_roleMembers[role].add(account);
}
/**
* @dev Overload {_revokeRole} to track enumerable memberships
*/
function _revokeRole(bytes32 role, address account) internal virtual override {
super._revokeRole(role, account);
_roleMembers[role].remove(account);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
/**
* @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
*/
interface IAccessControlEnumerable is IAccessControl {
/**
* @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) external view returns (address);
/**
* @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) external view returns (uint256);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* 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, IAccessControl, ERC165 {
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
Strings.toHexString(account),
" is missing role ",
Strings.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleGranted} event.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleRevoked} event.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*
* May emit a {RoleRevoked} event.
*/
function renounceRole(bytes32 role, address account) public virtual override {
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.
*
* May emit a {RoleGranted} event.
*
* [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}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
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 {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleGranted} event.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleRevoked} event.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @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 {AccessControl-_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) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^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 meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = 1;
// compute log10(value), and add it to length
uint256 valueCopy = value;
if (valueCopy >= 10**64) {
valueCopy /= 10**64;
length += 64;
}
if (valueCopy >= 10**32) {
valueCopy /= 10**32;
length += 32;
}
if (valueCopy >= 10**16) {
valueCopy /= 10**16;
length += 16;
}
if (valueCopy >= 10**8) {
valueCopy /= 10**8;
length += 8;
}
if (valueCopy >= 10**4) {
valueCopy /= 10**4;
length += 4;
}
if (valueCopy >= 10**2) {
valueCopy /= 10**2;
length += 2;
}
if (valueCopy >= 10**1) {
length += 1;
}
// now, length is log10(value) + 1
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = 1;
// compute log256(value), and add it to length
uint256 valueCopy = value;
if (valueCopy >= 1 << 128) {
valueCopy >>= 128;
length += 16;
}
if (valueCopy >= 1 << 64) {
valueCopy >>= 64;
length += 8;
}
if (valueCopy >= 1 << 32) {
valueCopy >>= 32;
length += 4;
}
if (valueCopy >= 1 << 16) {
valueCopy >>= 16;
length += 2;
}
if (valueCopy >= 1 << 8) {
valueCopy >>= 8;
length += 1;
}
// now, length is log256(value) + 1
return toHexString(value, length);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}{
"remappings": [
"@divergencetech/ethier/=lib/ethier_0_27_0/",
"erc721a/=lib/ERC721A/",
"ds-test/=lib/forge-std/lib/ds-test/src/",
"ethier/=lib/ethier/contracts/",
"forge-std/=lib/forge-std/src/",
"inflate-sol/=lib/inflate-sol/contracts/",
"moonbirds-inchain/=src/",
"openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
"@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
"moonbirds/=lib/moonbirds-contract/contracts/",
"ERC721A/=lib/ERC721A/contracts/",
"solidify-contracts/=lib/solidify/contracts/",
"erc4626-tests/=lib/solidify/lib/openzeppelin-contracts/lib/erc4626-tests/",
"ethier_0_27_0/=lib/ethier_0_27_0/",
"moonbirds-contract/=lib/moonbirds-contract/",
"solidify-test/=lib/solidify/./test/",
"solidify/=lib/solidify/"
],
"optimizer": {
"enabled": true,
"runs": 99999
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "london",
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"contract IERC721","name":"token","type":"address"},{"internalType":"contract IMoonbirds","name":"moonbirds","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"isEligible","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"isEligible","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000d1169e5349d1cb9941f3dcba135c8a4b9eacfdde00000000000000000000000023581767a106ae21c074b2276d25e5c3e136a68b
-----Decoded View---------------
Arg [0] : token (address): 0xd1169e5349d1cB9941F3DCbA135C8A4b9eACFDDE
Arg [1] : moonbirds (address): 0x23581767a106ae21c074b2276D25e5C3e136a68b
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000d1169e5349d1cb9941f3dcba135c8a4b9eacfdde
Arg [1] : 00000000000000000000000023581767a106ae21c074b2276d25e5c3e136a68b
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Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 33 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.