0x13...828D
Grand_Conquest
GC
Collection
Collection
This contract's source code is verified!
Contract Metadata
Compiler
0.8.19+commit.7dd6d404
Language
Solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity <0.9.0 >=0.5.0 >=0.7.6 >=0.8.0 >=0.8.13 ^0.8.0 ^0.8.24 ^0.8.4;
// lib/ERC721A/contracts/IERC721A.sol
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
/**
* @dev Interface of ERC721A.
*/
interface IERC721A {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by "from".
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
/**
* The "quantity" minted with ERC2309 exceeds the safety limit.
*/
error MintERC2309QuantityExceedsLimit();
/**
* The "extraData" cannot be set on an unintialized ownership slot.
*/
error OwnershipNotInitializedForExtraData();
/**
* "_sequentialUpTo()" must be greater than "_startTokenId()".
*/
error SequentialUpToTooSmall();
/**
* The "tokenId" of a sequential mint exceeds "_sequentialUpTo()".
*/
error SequentialMintExceedsLimit();
/**
* Spot minting requires a "tokenId" greater than "_sequentialUpTo()".
*/
error SpotMintTokenIdTooSmall();
/**
* Cannot mint over a token that already exists.
*/
error TokenAlreadyExists();
/**
* The feature is not compatible with spot mints.
*/
error NotCompatibleWithSpotMints();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to "startTimestamp" that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* "interfaceId". See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @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",
* 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 be 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,
bytes calldata data
) external payable;
/**
* @dev Equivalent to "safeTransferFrom(from, to, tokenId, '')".
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external payable;
/**
* @dev Transfers "tokenId" from "from" to "to".
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* 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 payable;
/**
* @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 payable;
/**
* @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);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for "tokenId" token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in "fromTokenId" to "toTokenId"
* (inclusive) is transferred from "from" to "to", as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}
// lib/solidity-examples/contracts/libraries/BytesLib.sol
/*
* @title Solidity Bytes Arrays Utils
* @author Gonçalo Sá <goncalo.sa@consensys.net>
*
* @dev Bytes tightly packed arrays utility library for ethereum contracts written in Solidity.
* The library lets you concatenate, slice and type cast bytes arrays both in memory and storage.
*/
library BytesLib {
function concat(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bytes memory) {
bytes memory tempBytes;
assembly {
// Get a location of some free memory and store it in tempBytes as
// Solidity does for memory variables.
tempBytes := mload(0x40)
// Store the length of the first bytes array at the beginning of
// the memory for tempBytes.
let length := mload(_preBytes)
mstore(tempBytes, length)
// Maintain a memory counter for the current write location in the
// temp bytes array by adding the 32 bytes for the array length to
// the starting location.
let mc := add(tempBytes, 0x20)
// Stop copying when the memory counter reaches the length of the
// first bytes array.
let end := add(mc, length)
for {
// Initialize a copy counter to the start of the _preBytes data,
// 32 bytes into its memory.
let cc := add(_preBytes, 0x20)
} lt(mc, end) {
// Increase both counters by 32 bytes each iteration.
mc := add(mc, 0x20)
cc := add(cc, 0x20)
} {
// Write the _preBytes data into the tempBytes memory 32 bytes
// at a time.
mstore(mc, mload(cc))
}
// Add the length of _postBytes to the current length of tempBytes
// and store it as the new length in the first 32 bytes of the
// tempBytes memory.
length := mload(_postBytes)
mstore(tempBytes, add(length, mload(tempBytes)))
// Move the memory counter back from a multiple of 0x20 to the
// actual end of the _preBytes data.
mc := end
// Stop copying when the memory counter reaches the new combined
// length of the arrays.
end := add(mc, length)
for {
let cc := add(_postBytes, 0x20)
} lt(mc, end) {
mc := add(mc, 0x20)
cc := add(cc, 0x20)
} {
mstore(mc, mload(cc))
}
// Update the free-memory pointer by padding our last write location
// to 32 bytes: add 31 bytes to the end of tempBytes to move to the
// next 32 byte block, then round down to the nearest multiple of
// 32. If the sum of the length of the two arrays is zero then add
// one before rounding down to leave a blank 32 bytes (the length block with 0).
mstore(
0x40,
and(
add(add(end, iszero(add(length, mload(_preBytes)))), 31),
not(31) // Round down to the nearest 32 bytes.
)
)
}
return tempBytes;
}
function concatStorage(bytes storage _preBytes, bytes memory _postBytes) internal {
assembly {
// Read the first 32 bytes of _preBytes storage, which is the length
// of the array. (We don't need to use the offset into the slot
// because arrays use the entire slot.)
let fslot := sload(_preBytes.slot)
// Arrays of 31 bytes or less have an even value in their slot,
// while longer arrays have an odd value. The actual length is
// the slot divided by two for odd values, and the lowest order
// byte divided by two for even values.
// If the slot is even, bitwise and the slot with 255 and divide by
// two to get the length. If the slot is odd, bitwise and the slot
// with -1 and divide by two.
let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
let mlength := mload(_postBytes)
let newlength := add(slength, mlength)
// slength can contain both the length and contents of the array
// if length < 32 bytes so let's prepare for that
// v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
switch add(lt(slength, 32), lt(newlength, 32))
case 2 {
// Since the new array still fits in the slot, we just need to
// update the contents of the slot.
// uint256(bytes_storage) = uint256(bytes_storage) + uint256(bytes_memory) + new_length
sstore(
_preBytes.slot,
// all the modifications to the slot are inside this
// next block
add(
// we can just add to the slot contents because the
// bytes we want to change are the LSBs
fslot,
add(
mul(
div(
// load the bytes from memory
mload(add(_postBytes, 0x20)),
// zero all bytes to the right
exp(0x100, sub(32, mlength))
),
// and now shift left the number of bytes to
// leave space for the length in the slot
exp(0x100, sub(32, newlength))
),
// increase length by the double of the memory
// bytes length
mul(mlength, 2)
)
)
)
}
case 1 {
// The stored value fits in the slot, but the combined value
// will exceed it.
// get the keccak hash to get the contents of the array
mstore(0x0, _preBytes.slot)
let sc := add(keccak256(0x0, 0x20), div(slength, 32))
// save new length
sstore(_preBytes.slot, add(mul(newlength, 2), 1))
// The contents of the _postBytes array start 32 bytes into
// the structure. Our first read should obtain the "submod"
// bytes that can fit into the unused space in the last word
// of the stored array. To get this, we read 32 bytes starting
// from "submod", so the data we read overlaps with the array
// contents by "submod" bytes. Masking the lowest-order
// "submod" bytes allows us to add that value directly to the
// stored value.
let submod := sub(32, slength)
let mc := add(_postBytes, submod)
let end := add(_postBytes, mlength)
let mask := sub(exp(0x100, submod), 1)
sstore(sc, add(and(fslot, 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00), and(mload(mc), mask)))
for {
mc := add(mc, 0x20)
sc := add(sc, 1)
} lt(mc, end) {
sc := add(sc, 1)
mc := add(mc, 0x20)
} {
sstore(sc, mload(mc))
}
mask := exp(0x100, sub(mc, end))
sstore(sc, mul(div(mload(mc), mask), mask))
}
default {
// get the keccak hash to get the contents of the array
mstore(0x0, _preBytes.slot)
// Start copying to the last used word of the stored array.
let sc := add(keccak256(0x0, 0x20), div(slength, 32))
// save new length
sstore(_preBytes.slot, add(mul(newlength, 2), 1))
// Copy over the first "submod" bytes of the new data as in
// case 1 above.
let slengthmod := mod(slength, 32)
let mlengthmod := mod(mlength, 32)
let submod := sub(32, slengthmod)
let mc := add(_postBytes, submod)
let end := add(_postBytes, mlength)
let mask := sub(exp(0x100, submod), 1)
sstore(sc, add(sload(sc), and(mload(mc), mask)))
for {
sc := add(sc, 1)
mc := add(mc, 0x20)
} lt(mc, end) {
sc := add(sc, 1)
mc := add(mc, 0x20)
} {
sstore(sc, mload(mc))
}
mask := exp(0x100, sub(mc, end))
sstore(sc, mul(div(mload(mc), mask), mask))
}
}
}
function slice(
bytes memory _bytes,
uint _start,
uint _length
) internal pure returns (bytes memory) {
require(_length + 31 >= _length, "slice_overflow");
require(_bytes.length >= _start + _length, "slice_outOfBounds");
bytes memory tempBytes;
assembly {
switch iszero(_length)
case 0 {
// Get a location of some free memory and store it in tempBytes as
// Solidity does for memory variables.
tempBytes := mload(0x40)
// The first word of the slice result is potentially a partial
// word read from the original array. To read it, we calculate
// the length of that partial word and start copying that many
// bytes into the array. The first word we copy will start with
// data we don't care about, but the last "lengthmod" bytes will
// land at the beginning of the contents of the new array. When
// we're done copying, we overwrite the full first word with
// the actual length of the slice.
let lengthmod := and(_length, 31)
// The multiplication in the next line is necessary
// because when slicing multiples of 32 bytes (lengthmod == 0)
// the following copy loop was copying the origin's length
// and then ending prematurely not copying everything it should.
let mc := add(add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)))
let end := add(mc, _length)
for {
// The multiplication in the next line has the same exact purpose
// as the one above.
let cc := add(add(add(_bytes, lengthmod), mul(0x20, iszero(lengthmod))), _start)
} lt(mc, end) {
mc := add(mc, 0x20)
cc := add(cc, 0x20)
} {
mstore(mc, mload(cc))
}
mstore(tempBytes, _length)
//update free-memory pointer
//allocating the array padded to 32 bytes like the compiler does now
mstore(0x40, and(add(mc, 31), not(31)))
}
//if we want a zero-length slice let's just return a zero-length array
default {
tempBytes := mload(0x40)
//zero out the 32 bytes slice we are about to return
//we need to do it because Solidity does not garbage collect
mstore(tempBytes, 0)
mstore(0x40, add(tempBytes, 0x20))
}
}
return tempBytes;
}
function toAddress(bytes memory _bytes, uint _start) internal pure returns (address) {
require(_bytes.length >= _start + 20, "toAddress_outOfBounds");
address tempAddress;
assembly {
tempAddress := div(mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000)
}
return tempAddress;
}
function toUint8(bytes memory _bytes, uint _start) internal pure returns (uint8) {
require(_bytes.length >= _start + 1, "toUint8_outOfBounds");
uint8 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x1), _start))
}
return tempUint;
}
function toUint16(bytes memory _bytes, uint _start) internal pure returns (uint16) {
require(_bytes.length >= _start + 2, "toUint16_outOfBounds");
uint16 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x2), _start))
}
return tempUint;
}
function toUint32(bytes memory _bytes, uint _start) internal pure returns (uint32) {
require(_bytes.length >= _start + 4, "toUint32_outOfBounds");
uint32 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x4), _start))
}
return tempUint;
}
function toUint64(bytes memory _bytes, uint _start) internal pure returns (uint64) {
require(_bytes.length >= _start + 8, "toUint64_outOfBounds");
uint64 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x8), _start))
}
return tempUint;
}
function toUint96(bytes memory _bytes, uint _start) internal pure returns (uint96) {
require(_bytes.length >= _start + 12, "toUint96_outOfBounds");
uint96 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0xc), _start))
}
return tempUint;
}
function toUint128(bytes memory _bytes, uint _start) internal pure returns (uint128) {
require(_bytes.length >= _start + 16, "toUint128_outOfBounds");
uint128 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x10), _start))
}
return tempUint;
}
function toUint256(bytes memory _bytes, uint _start) internal pure returns (uint) {
require(_bytes.length >= _start + 32, "toUint256_outOfBounds");
uint tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x20), _start))
}
return tempUint;
}
function toBytes32(bytes memory _bytes, uint _start) internal pure returns (bytes32) {
require(_bytes.length >= _start + 32, "toBytes32_outOfBounds");
bytes32 tempBytes32;
assembly {
tempBytes32 := mload(add(add(_bytes, 0x20), _start))
}
return tempBytes32;
}
function equal(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bool) {
bool success = true;
assembly {
let length := mload(_preBytes)
// if lengths don't match the arrays are not equal
switch eq(length, mload(_postBytes))
case 1 {
// cb is a circuit breaker in the for loop since there's
// no said feature for inline assembly loops
// cb = 1 - don't breaker
// cb = 0 - break
let cb := 1
let mc := add(_preBytes, 0x20)
let end := add(mc, length)
for {
let cc := add(_postBytes, 0x20)
// the next line is the loop condition:
// while(uint256(mc < end) + cb == 2)
} eq(add(lt(mc, end), cb), 2) {
mc := add(mc, 0x20)
cc := add(cc, 0x20)
} {
// if any of these checks fails then arrays are not equal
if iszero(eq(mload(mc), mload(cc))) {
// unsuccess:
success := 0
cb := 0
}
}
}
default {
// unsuccess:
success := 0
}
}
return success;
}
function equalStorage(bytes storage _preBytes, bytes memory _postBytes) internal view returns (bool) {
bool success = true;
assembly {
// we know _preBytes_offset is 0
let fslot := sload(_preBytes.slot)
// Decode the length of the stored array like in concatStorage().
let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
let mlength := mload(_postBytes)
// if lengths don't match the arrays are not equal
switch eq(slength, mlength)
case 1 {
// slength can contain both the length and contents of the array
// if length < 32 bytes so let's prepare for that
// v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
if iszero(iszero(slength)) {
switch lt(slength, 32)
case 1 {
// blank the last byte which is the length
fslot := mul(div(fslot, 0x100), 0x100)
if iszero(eq(fslot, mload(add(_postBytes, 0x20)))) {
// unsuccess:
success := 0
}
}
default {
// cb is a circuit breaker in the for loop since there's
// no said feature for inline assembly loops
// cb = 1 - don't breaker
// cb = 0 - break
let cb := 1
// get the keccak hash to get the contents of the array
mstore(0x0, _preBytes.slot)
let sc := keccak256(0x0, 0x20)
let mc := add(_postBytes, 0x20)
let end := add(mc, mlength)
// the next line is the loop condition:
// while(uint256(mc < end) + cb == 2)
for {
} eq(add(lt(mc, end), cb), 2) {
sc := add(sc, 1)
mc := add(mc, 0x20)
} {
if iszero(eq(sload(sc), mload(mc))) {
// unsuccess:
success := 0
cb := 0
}
}
}
}
}
default {
// unsuccess:
success := 0
}
}
return success;
}
}
// lib/solidity-examples/contracts/libraries/ExcessivelySafeCall.sol
library ExcessivelySafeCall {
uint constant LOW_28_MASK = 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
/// @notice Use when you _really_ really _really_ don't trust the called
/// contract. This prevents the called contract from causing reversion of
/// the caller in as many ways as we can.
/// @dev The main difference between this and a solidity low-level call is
/// that we limit the number of bytes that the callee can cause to be
/// copied to caller memory. This prevents stupid things like malicious
/// contracts returning 10,000,000 bytes causing a local OOG when copying
/// to memory.
/// @param _target The address to call
/// @param _gas The amount of gas to forward to the remote contract
/// @param _maxCopy The maximum number of bytes of returndata to copy
/// to memory.
/// @param _calldata The data to send to the remote contract
/// @return success and returndata, as ".call()". Returndata is capped to
/// "_maxCopy" bytes.
function excessivelySafeCall(
address _target,
uint _gas,
uint16 _maxCopy,
bytes memory _calldata
) internal returns (bool, bytes memory) {
// set up for assembly call
uint _toCopy;
bool _success;
bytes memory _returnData = new bytes(_maxCopy);
// dispatch message to recipient
// by assembly calling "handle" function
// we call via assembly to avoid memcopying a very large returndata
// returned by a malicious contract
assembly {
_success := call(
_gas, // gas
_target, // recipient
0, // ether value
add(_calldata, 0x20), // inloc
mload(_calldata), // inlen
0, // outloc
0 // outlen
)
// limit our copy to 256 bytes
_toCopy := returndatasize()
if gt(_toCopy, _maxCopy) {
_toCopy := _maxCopy
}
// Store the length of the copied bytes
mstore(_returnData, _toCopy)
// copy the bytes from returndata[0:_toCopy]
returndatacopy(add(_returnData, 0x20), 0, _toCopy)
}
return (_success, _returnData);
}
/// @notice Use when you _really_ really _really_ don't trust the called
/// contract. This prevents the called contract from causing reversion of
/// the caller in as many ways as we can.
/// @dev The main difference between this and a solidity low-level call is
/// that we limit the number of bytes that the callee can cause to be
/// copied to caller memory. This prevents stupid things like malicious
/// contracts returning 10,000,000 bytes causing a local OOG when copying
/// to memory.
/// @param _target The address to call
/// @param _gas The amount of gas to forward to the remote contract
/// @param _maxCopy The maximum number of bytes of returndata to copy
/// to memory.
/// @param _calldata The data to send to the remote contract
/// @return success and returndata, as ".call()". Returndata is capped to
/// "_maxCopy" bytes.
function excessivelySafeStaticCall(
address _target,
uint _gas,
uint16 _maxCopy,
bytes memory _calldata
) internal view returns (bool, bytes memory) {
// set up for assembly call
uint _toCopy;
bool _success;
bytes memory _returnData = new bytes(_maxCopy);
// dispatch message to recipient
// by assembly calling "handle" function
// we call via assembly to avoid memcopying a very large returndata
// returned by a malicious contract
assembly {
_success := staticcall(
_gas, // gas
_target, // recipient
add(_calldata, 0x20), // inloc
mload(_calldata), // inlen
0, // outloc
0 // outlen
)
// limit our copy to 256 bytes
_toCopy := returndatasize()
if gt(_toCopy, _maxCopy) {
_toCopy := _maxCopy
}
// Store the length of the copied bytes
mstore(_returnData, _toCopy)
// copy the bytes from returndata[0:_toCopy]
returndatacopy(add(_returnData, 0x20), 0, _toCopy)
}
return (_success, _returnData);
}
/**
* @notice Swaps function selectors in encoded contract calls
* @dev Allows reuse of encoded calldata for functions with identical
* argument types but different names. It simply swaps out the first 4 bytes
* for the new selector. This function modifies memory in place, and should
* only be used with caution.
* @param _newSelector The new 4-byte selector
* @param _buf The encoded contract args
*/
function swapSelector(bytes4 _newSelector, bytes memory _buf) internal pure {
require(_buf.length >= 4);
uint _mask = LOW_28_MASK;
assembly {
// load the first word of
let _word := mload(add(_buf, 0x20))
// mask out the top 4 bytes
// /x
_word := and(_word, _mask)
_word := or(_newSelector, _word)
mstore(add(_buf, 0x20), _word)
}
}
}
// lib/solidity-examples/contracts/lzApp/interfaces/ILayerZeroReceiver.sol
interface ILayerZeroReceiver {
// @notice LayerZero endpoint will invoke this function to deliver the message on the destination
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function lzReceive(
uint16 _srcChainId,
bytes calldata _srcAddress,
uint64 _nonce,
bytes calldata _payload
) external;
}
// lib/solidity-examples/contracts/lzApp/interfaces/ILayerZeroUserApplicationConfig.sol
interface ILayerZeroUserApplicationConfig {
// @notice set the configuration of the LayerZero messaging library of the specified version
// @param _version - messaging library version
// @param _chainId - the chainId for the pending config change
// @param _configType - type of configuration. every messaging library has its own convention.
// @param _config - configuration in the bytes. can encode arbitrary content.
function setConfig(
uint16 _version,
uint16 _chainId,
uint _configType,
bytes calldata _config
) external;
// @notice set the send() LayerZero messaging library version to _version
// @param _version - new messaging library version
function setSendVersion(uint16 _version) external;
// @notice set the lzReceive() LayerZero messaging library version to _version
// @param _version - new messaging library version
function setReceiveVersion(uint16 _version) external;
// @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload
// @param _srcChainId - the chainId of the source chain
// @param _srcAddress - the contract address of the source contract at the source chain
function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external;
}
// node_modules/@openzeppelin/contracts/security/ReentrancyGuard.sol
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from "ReentrancyGuard" will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single "nonReentrant" guard, functions marked as
* "nonReentrant" may not call one another. This can be worked around by making
* those functions "private", and then adding "external" "nonReentrant" entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a "nonReentrant" function from another "nonReentrant"
* function is not supported. It is possible to prevent this from happening
* by making the "nonReentrant" function external, and making it call a
* "private" function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* "nonReentrant" function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
// node_modules/@openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// node_modules/@openzeppelin/contracts/utils/introspection/IERC165.sol
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
/**
* @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);
}
// lib/ERC721A/contracts/ERC721A.sol
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
/**
* @dev Interface of ERC721 token receiver.
*/
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
/**
* @title ERC721A
*
* @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
* Non-Fungible Token Standard, including the Metadata extension.
* Optimized for lower gas during batch mints.
*
* Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
* starting from "_startTokenId()".
*
* The "_sequentialUpTo()" function can be overriden to enable spot mints
* (i.e. non-consecutive mints) for "tokenId"s greater than "_sequentialUpTo()".
*
* Assumptions:
*
* - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
* - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721A is IERC721A {
// Bypass for a "--via-ir" bug (https://github.com/chiru-labs/ERC721A/pull/364).
struct TokenApprovalRef {
address value;
}
// =============================================================
// CONSTANTS
// =============================================================
// Mask of an entry in packed address data.
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
// The bit position of "numberMinted" in packed address data.
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
// The bit position of "numberBurned" in packed address data.
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
// The bit position of "aux" in packed address data.
uint256 private constant _BITPOS_AUX = 192;
// Mask of all 256 bits in packed address data except the 64 bits for "aux".
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
// The bit position of "startTimestamp" in packed ownership.
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
// The bit mask of the "burned" bit in packed ownership.
uint256 private constant _BITMASK_BURNED = 1 << 224;
// The bit position of the "nextInitialized" bit in packed ownership.
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
// The bit mask of the "nextInitialized" bit in packed ownership.
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
// The bit position of "extraData" in packed ownership.
uint256 private constant _BITPOS_EXTRA_DATA = 232;
// Mask of all 256 bits in a packed ownership except the 24 bits for "extraData".
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
// The mask of the lower 160 bits for addresses.
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
// The maximum "quantity" that can be minted with {_mintERC2309}.
// This limit is to prevent overflows on the address data entries.
// For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
// is required to cause an overflow, which is unrealistic.
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
// The "Transfer" event signature is given by:
// "keccak256(bytes("Transfer(address,address,uint256)"))".
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
// =============================================================
// STORAGE
// =============================================================
// The next token ID to be minted.
uint256 private _currentIndex;
// The number of tokens burned.
uint256 private _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned.
// See {_packedOwnershipOf} implementation for details.
//
// Bits Layout:
// - [0..159] "addr"
// - [160..223] "startTimestamp"
// - [224] "burned"
// - [225] "nextInitialized"
// - [232..255] "extraData"
mapping(uint256 => uint256) private _packedOwnerships;
// Mapping owner address to address data.
//
// Bits Layout:
// - [0..63] "balance"
// - [64..127] "numberMinted"
// - [128..191] "numberBurned"
// - [192..255] "aux"
mapping(address => uint256) private _packedAddressData;
// Mapping from token ID to approved address.
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
// The amount of tokens minted above "_sequentialUpTo()".
// We call these spot mints (i.e. non-sequential mints).
uint256 private _spotMinted;
// =============================================================
// CONSTRUCTOR
// =============================================================
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
if (_sequentialUpTo() < _startTokenId()) _revert(SequentialUpToTooSmall.selector);
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID for sequential mints.
*
* Override this function to change the starting token ID for sequential mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the maximum token ID (inclusive) for sequential mints.
*
* Override this function to return a value less than 2**256 - 1,
* but greater than "_startTokenId()", to enable spot (non-sequential) mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _sequentialUpTo() internal view virtual returns (uint256) {
return type(uint256).max;
}
/**
* @dev Returns the next token ID to be minted.
*/
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() public view virtual override returns (uint256 result) {
// Counter underflow is impossible as "_burnCounter" cannot be incremented
// more than "_currentIndex + _spotMinted - _startTokenId()" times.
unchecked {
// With spot minting, the intermediate "result" can be temporarily negative,
// and the computation must be unchecked.
result = _currentIndex - _burnCounter - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256 result) {
// Counter underflow is impossible as "_currentIndex" does not decrement,
// and it is initialized to "_startTokenId()".
unchecked {
result = _currentIndex - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
/**
* @dev Returns the total number of tokens that are spot-minted.
*/
function _totalSpotMinted() internal view virtual returns (uint256) {
return _spotMinted;
}
// =============================================================
// ADDRESS DATA OPERATIONS
// =============================================================
/**
* @dev Returns the number of tokens in "owner"'s account.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens minted by "owner".
*/
function _numberMinted(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens burned by or on behalf of "owner".
*/
function _numberBurned(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the auxiliary data for "owner". (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
/**
* Sets the auxiliary data for "owner". (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
// Cast "aux" with assembly to avoid redundant masking.
assembly {
auxCasted := aux
}
packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* "interfaceId". See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
// The interface IDs are constants representing the first 4 bytes
// of the XOR of all function selectors in the interface.
// See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
// (e.g. "bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)")
return
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
}
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the token collection symbol.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for "tokenId" token.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the "baseURI" and the "tokenId". Empty
* by default, it can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return '';
}
// =============================================================
// OWNERSHIPS OPERATIONS
// =============================================================
/**
* @dev Returns the owner of the "tokenId" token.
*
* Requirements:
*
* - "tokenId" must exist.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return address(uint160(_packedOwnershipOf(tokenId)));
}
/**
* @dev Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around over time.
*/
function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
/**
* @dev Returns the unpacked "TokenOwnership" struct at "index".
*/
function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnerships[index]);
}
/**
* @dev Returns whether the ownership slot at "index" is initialized.
* An uninitialized slot does not necessarily mean that the slot has no owner.
*/
function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
return _packedOwnerships[index] != 0;
}
/**
* @dev Initializes the ownership slot minted at "index" for efficiency purposes.
*/
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
/**
* @dev Returns the packed ownership data of "tokenId".
*/
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {
if (_startTokenId() <= tokenId) {
packed = _packedOwnerships[tokenId];
if (tokenId > _sequentialUpTo()) {
if (_packedOwnershipExists(packed)) return packed;
_revert(OwnerQueryForNonexistentToken.selector);
}
// If the data at the starting slot does not exist, start the scan.
if (packed == 0) {
if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
// Invariant:
// There will always be an initialized ownership slot
// (i.e. "ownership.addr != address(0) && ownership.burned == false")
// before an unintialized ownership slot
// (i.e. "ownership.addr == address(0) && ownership.burned == false")
// Hence, "tokenId" will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
for (;;) {
unchecked {
packed = _packedOwnerships[--tokenId];
}
if (packed == 0) continue;
if (packed & _BITMASK_BURNED == 0) return packed;
// Otherwise, the token is burned, and we must revert.
// This handles the case of batch burned tokens, where only the burned bit
// of the starting slot is set, and remaining slots are left uninitialized.
_revert(OwnerQueryForNonexistentToken.selector);
}
}
// Otherwise, the data exists and we can skip the scan.
// This is possible because we have already achieved the target condition.
// This saves 2143 gas on transfers of initialized tokens.
// If the token is not burned, return "packed". Otherwise, revert.
if (packed & _BITMASK_BURNED == 0) return packed;
}
_revert(OwnerQueryForNonexistentToken.selector);
}
/**
* @dev Returns the unpacked "TokenOwnership" struct from "packed".
*/
function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
/**
* @dev Packs ownership data into a single uint256.
*/
function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
assembly {
// Mask "owner" to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// "owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags".
result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
}
}
/**
* @dev Returns the "nextInitialized" flag set if "quantity" equals 1.
*/
function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
// For branchless setting of the "nextInitialized" flag.
assembly {
// "(quantity == 1) << _BITPOS_NEXT_INITIALIZED".
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Gives permission to "to" to transfer "tokenId" token to another account. See {ERC721A-_approve}.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
*/
function approve(address to, uint256 tokenId) public payable virtual override {
_approve(to, tokenId, true);
}
/**
* @dev Returns the account approved for "tokenId" token.
*
* Requirements:
*
* - "tokenId" must exist.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector);
return _tokenApprovals[tokenId].value;
}
/**
* @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) public virtual override {
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
/**
* @dev Returns if the "operator" is allowed to manage all of the assets of "owner".
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev Returns whether "tokenId" exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted. See {_mint}.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool result) {
if (_startTokenId() <= tokenId) {
if (tokenId > _sequentialUpTo()) return _packedOwnershipExists(_packedOwnerships[tokenId]);
if (tokenId < _currentIndex) {
uint256 packed;
while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;
result = packed & _BITMASK_BURNED == 0;
}
}
}
/**
* @dev Returns whether "packed" represents a token that exists.
*/
function _packedOwnershipExists(uint256 packed) private pure returns (bool result) {
assembly {
// The following is equivalent to "owner != address(0) && burned == false".
// Symbolically tested.
result := gt(and(packed, _BITMASK_ADDRESS), and(packed, _BITMASK_BURNED))
}
}
/**
* @dev Returns whether "msgSender" is equal to "approvedAddress" or "owner".
*/
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
// Mask "owner" to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// Mask "msgSender" to the lower 160 bits, in case the upper bits somehow aren't clean.
msgSender := and(msgSender, _BITMASK_ADDRESS)
// "msgSender == owner || msgSender == approvedAddress".
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
/**
* @dev Returns the storage slot and value for the approved address of "tokenId".
*/
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
// The following is equivalent to "approvedAddress = _tokenApprovals[tokenId].value".
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
// =============================================================
// TRANSFER OPERATIONS
// =============================================================
/**
* @dev Transfers "tokenId" from "from" to "to".
*
* 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
) public payable virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
// Mask "from" to the lower 160 bits, in case the upper bits somehow aren't clean.
from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));
if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to "delete _tokenApprovals[tokenId]".
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as "tokenId" would have to be 2**256.
unchecked {
// We can directly increment and decrement the balances.
--_packedAddressData[from]; // Updates: "balance -= 1".
++_packedAddressData[to]; // Updates: "balance += 1".
// Updates:
// - "address" to the next owner.
// - "startTimestamp" to the timestamp of transfering.
// - "burned" to "false".
// - "nextInitialized" to "true".
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. "nextInitialized == false") .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for "ownerOf(tokenId + 1)".
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
// Mask "to" to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
assembly {
// Emit the "Transfer" event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
from, // "from".
toMasked, // "to".
tokenId // "tokenId".
)
}
if (toMasked == 0) _revert(TransferToZeroAddress.selector);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to "safeTransferFrom(from, to, tokenId, '')".
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
safeTransferFrom(from, to, tokenId, '');
}
/**
* @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 memory _data
) public payable virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
}
/**
* @dev Hook that is called before a set of serially-ordered token IDs
* are about to be transferred. This includes minting.
* And also called before burning one token.
*
* "startTokenId" - the first token ID to be transferred.
* "quantity" - the amount to be transferred.
*
* Calling conditions:
*
* - When "from" and "to" are both non-zero, "from"'s "tokenId" will be
* transferred to "to".
* - When "from" is zero, "tokenId" will be minted for "to".
* - When "to" is zero, "tokenId" will be burned by "from".
* - "from" and "to" are never both zero.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token IDs
* have been transferred. This includes minting.
* And also called after one token has been burned.
*
* "startTokenId" - the first token ID to be transferred.
* "quantity" - the amount to be transferred.
*
* Calling conditions:
*
* - When "from" and "to" are both non-zero, "from"'s "tokenId" has been
* transferred to "to".
* - When "from" is zero, "tokenId" has been minted for "to".
* - When "to" is zero, "tokenId" has been burned by "from".
* - "from" and "to" are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* "from" - Previous owner of the given token ID.
* "to" - Target address that will receive the token.
* "tokenId" - Token ID to be transferred.
* "_data" - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
bytes4 retval
) {
return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
assembly {
revert(add(32, reason), mload(reason))
}
}
}
// =============================================================
// MINT OPERATIONS
// =============================================================
/**
* @dev Mints "quantity" tokens and transfers them to "to".
*
* Requirements:
*
* - "to" cannot be the zero address.
* - "quantity" must be greater than 0.
*
* Emits a {Transfer} event for each mint.
*/
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) _revert(MintZeroQuantity.selector);
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// "balance" and "numberMinted" have a maximum limit of 2**64.
// "tokenId" has a maximum limit of 2**256.
unchecked {
// Updates:
// - "address" to the owner.
// - "startTimestamp" to the timestamp of minting.
// - "burned" to "false".
// - "nextInitialized" to "quantity == 1".
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
// Updates:
// - "balance += quantity".
// - "numberMinted += quantity".
//
// We can directly add to the "balance" and "numberMinted".
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Mask "to" to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
uint256 end = startTokenId + quantity;
uint256 tokenId = startTokenId;
if (end - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
do {
assembly {
// Emit the "Transfer" event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // "address(0)".
toMasked, // "to".
tokenId // "tokenId".
)
}
// The "!=" check ensures that large values of "quantity"
// that overflows uint256 will make the loop run out of gas.
} while (++tokenId != end);
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints "quantity" tokens and transfers them to "to".
*
* This function is intended for efficient minting only during contract creation.
*
* It emits only one {ConsecutiveTransfer} as defined in
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
* instead of a sequence of {Transfer} event(s).
*
* Calling this function outside of contract creation WILL make your contract
* non-compliant with the ERC721 standard.
* For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
* {ConsecutiveTransfer} event is only permissible during contract creation.
*
* Requirements:
*
* - "to" cannot be the zero address.
* - "quantity" must be greater than 0.
*
* Emits a {ConsecutiveTransfer} event.
*/
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) _revert(MintToZeroAddress.selector);
if (quantity == 0) _revert(MintZeroQuantity.selector);
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are unrealistic due to the above check for "quantity" to be below the limit.
unchecked {
// Updates:
// - "balance += quantity".
// - "numberMinted += quantity".
//
// We can directly add to the "balance" and "numberMinted".
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - "address" to the owner.
// - "startTimestamp" to the timestamp of minting.
// - "burned" to "false".
// - "nextInitialized" to "quantity == 1".
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
if (startTokenId + quantity - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Safely mints "quantity" tokens and transfers them to "to".
*
* Requirements:
*
* - If "to" refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - "quantity" must be greater than 0.
*
* See {_mint}.
*
* Emits a {Transfer} event for each mint.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
} while (index < end);
// This prevents reentrancy to "_safeMint".
// It does not prevent reentrancy to "_safeMintSpot".
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to "_safeMint(to, quantity, '')".
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
/**
* @dev Mints a single token at "tokenId".
*
* Note: A spot-minted "tokenId" that has been burned can be re-minted again.
*
* Requirements:
*
* - "to" cannot be the zero address.
* - "tokenId" must be greater than "_sequentialUpTo()".
* - "tokenId" must not exist.
*
* Emits a {Transfer} event for each mint.
*/
function _mintSpot(address to, uint256 tokenId) internal virtual {
if (tokenId <= _sequentialUpTo()) _revert(SpotMintTokenIdTooSmall.selector);
uint256 prevOwnershipPacked = _packedOwnerships[tokenId];
if (_packedOwnershipExists(prevOwnershipPacked)) _revert(TokenAlreadyExists.selector);
_beforeTokenTransfers(address(0), to, tokenId, 1);
// Overflows are incredibly unrealistic.
// The "numberMinted" for "to" is incremented by 1, and has a max limit of 2**64 - 1.
// "_spotMinted" is incremented by 1, and has a max limit of 2**256 - 1.
unchecked {
// Updates:
// - "address" to the owner.
// - "startTimestamp" to the timestamp of minting.
// - "burned" to "false".
// - "nextInitialized" to "true" (as "quantity == 1").
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_nextInitializedFlag(1) | _nextExtraData(address(0), to, prevOwnershipPacked)
);
// Updates:
// - "balance += 1".
// - "numberMinted += 1".
//
// We can directly add to the "balance" and "numberMinted".
_packedAddressData[to] += (1 << _BITPOS_NUMBER_MINTED) | 1;
// Mask "to" to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
assembly {
// Emit the "Transfer" event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // "address(0)".
toMasked, // "to".
tokenId // "tokenId".
)
}
++_spotMinted;
}
_afterTokenTransfers(address(0), to, tokenId, 1);
}
/**
* @dev Safely mints a single token at "tokenId".
*
* Note: A spot-minted "tokenId" that has been burned can be re-minted again.
*
* Requirements:
*
* - If "to" refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}.
* - "tokenId" must be greater than "_sequentialUpTo()".
* - "tokenId" must not exist.
*
* See {_mintSpot}.
*
* Emits a {Transfer} event.
*/
function _safeMintSpot(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mintSpot(to, tokenId);
unchecked {
if (to.code.length != 0) {
uint256 currentSpotMinted = _spotMinted;
if (!_checkContractOnERC721Received(address(0), to, tokenId, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
// This prevents reentrancy to "_safeMintSpot".
// It does not prevent reentrancy to "_safeMint".
if (_spotMinted != currentSpotMinted) revert();
}
}
}
/**
* @dev Equivalent to "_safeMintSpot(to, tokenId, '')".
*/
function _safeMintSpot(address to, uint256 tokenId) internal virtual {
_safeMintSpot(to, tokenId, '');
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Equivalent to "_approve(to, tokenId, false)".
*/
function _approve(address to, uint256 tokenId) internal virtual {
_approve(to, tokenId, false);
}
/**
* @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:
*
* - "tokenId" must exist.
*
* Emits an {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
bool approvalCheck
) internal virtual {
address owner = ownerOf(tokenId);
if (approvalCheck && _msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
_revert(ApprovalCallerNotOwnerNorApproved.selector);
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
// =============================================================
// BURN OPERATIONS
// =============================================================
/**
* @dev Equivalent to "_burn(tokenId, false)".
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys "tokenId".
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - "tokenId" must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to "delete _tokenApprovals[tokenId]".
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as "tokenId" would have to be 2**256.
unchecked {
// Updates:
// - "balance -= 1".
// - "numberBurned += 1".
//
// We can directly decrement the balance, and increment the number burned.
// This is equivalent to "packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;".
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
// Updates:
// - "address" to the last owner.
// - "startTimestamp" to the timestamp of burning.
// - "burned" to "true".
// - "nextInitialized" to "true".
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. "nextInitialized == false") .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for "ownerOf(tokenId + 1)".
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as "_burnCounter" cannot be exceed "_currentIndex + _spotMinted" times.
unchecked {
_burnCounter++;
}
}
// =============================================================
// EXTRA DATA OPERATIONS
// =============================================================
/**
* @dev Directly sets the extra data for the ownership data "index".
*/
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);
uint256 extraDataCasted;
// Cast "extraData" with assembly to avoid redundant masking.
assembly {
extraDataCasted := extraData
}
packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
/**
* @dev Called during each token transfer to set the 24bit "extraData" field.
* Intended to be overridden by the cosumer contract.
*
* "previousExtraData" - the value of "extraData" before transfer.
*
* Calling conditions:
*
* - When "from" and "to" are both non-zero, "from"'s "tokenId" will be
* transferred to "to".
* - When "from" is zero, "tokenId" will be minted for "to".
* - When "to" is zero, "tokenId" will be burned by "from".
* - "from" and "to" are never both zero.
*/
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
/**
* @dev Returns the next extra data for the packed ownership data.
* The returned result is shifted into position.
*/
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
// =============================================================
// OTHER OPERATIONS
// =============================================================
/**
* @dev Returns the message sender (defaults to "msg.sender").
*
* If you are writing GSN compatible contracts, you need to override this function.
*/
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
/**
* @dev Converts a uint256 to its ASCII string decimal representation.
*/
function _toString(uint256 value) internal pure virtual returns (string memory str) {
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit), but
// we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
// We will need 1 word for the trailing zeros padding, 1 word for the length,
// and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
let m := add(mload(0x40), 0xa0)
// Update the free memory pointer to allocate.
mstore(0x40, m)
// Assign the "str" to the end.
str := sub(m, 0x20)
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end of the memory to calculate the length later.
let end := str
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
// prettier-ignore
for { let temp := value } 1 {} {
str := sub(str, 1)
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing "temp" until zero.
temp := div(temp, 10)
// prettier-ignore
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
/**
* @dev For more efficient reverts.
*/
function _revert(bytes4 errorSelector) internal pure {
assembly {
mstore(0x00, errorSelector)
revert(0x00, 0x04)
}
}
}
// lib/solidity-examples/contracts/lzApp/interfaces/ILayerZeroEndpoint.sol
interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig {
// @notice send a LayerZero message to the specified address at a LayerZero endpoint.
// @param _dstChainId - the destination chain identifier
// @param _destination - the address on destination chain (in bytes). address length/format may vary by chains
// @param _payload - a custom bytes payload to send to the destination contract
// @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address
// @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction
// @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination
function send(
uint16 _dstChainId,
bytes calldata _destination,
bytes calldata _payload,
address payable _refundAddress,
address _zroPaymentAddress,
bytes calldata _adapterParams
) external payable;
// @notice used by the messaging library to publish verified payload
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source contract (as bytes) at the source chain
// @param _dstAddress - the address on destination chain
// @param _nonce - the unbound message ordering nonce
// @param _gasLimit - the gas limit for external contract execution
// @param _payload - verified payload to send to the destination contract
function receivePayload(
uint16 _srcChainId,
bytes calldata _srcAddress,
address _dstAddress,
uint64 _nonce,
uint _gasLimit,
bytes calldata _payload
) external;
// @notice get the inboundNonce of a lzApp from a source chain which could be EVM or non-EVM chain
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
function getInboundNonce(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (uint64);
// @notice get the outboundNonce from this source chain which, consequently, is always an EVM
// @param _srcAddress - the source chain contract address
function getOutboundNonce(uint16 _dstChainId, address _srcAddress) external view returns (uint64);
// @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery
// @param _dstChainId - the destination chain identifier
// @param _userApplication - the user app address on this EVM chain
// @param _payload - the custom message to send over LayerZero
// @param _payInZRO - if false, user app pays the protocol fee in native token
// @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain
function estimateFees(
uint16 _dstChainId,
address _userApplication,
bytes calldata _payload,
bool _payInZRO,
bytes calldata _adapterParam
) external view returns (uint nativeFee, uint zroFee);
// @notice get this Endpoint's immutable source identifier
function getChainId() external view returns (uint16);
// @notice the interface to retry failed message on this Endpoint destination
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
// @param _payload - the payload to be retried
function retryPayload(
uint16 _srcChainId,
bytes calldata _srcAddress,
bytes calldata _payload
) external;
// @notice query if any STORED payload (message blocking) at the endpoint.
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
function hasStoredPayload(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool);
// @notice query if the _libraryAddress is valid for sending msgs.
// @param _userApplication - the user app address on this EVM chain
function getSendLibraryAddress(address _userApplication) external view returns (address);
// @notice query if the _libraryAddress is valid for receiving msgs.
// @param _userApplication - the user app address on this EVM chain
function getReceiveLibraryAddress(address _userApplication) external view returns (address);
// @notice query if the non-reentrancy guard for send() is on
// @return true if the guard is on. false otherwise
function isSendingPayload() external view returns (bool);
// @notice query if the non-reentrancy guard for receive() is on
// @return true if the guard is on. false otherwise
function isReceivingPayload() external view returns (bool);
// @notice get the configuration of the LayerZero messaging library of the specified version
// @param _version - messaging library version
// @param _chainId - the chainId for the pending config change
// @param _userApplication - the contract address of the user application
// @param _configType - type of configuration. every messaging library has its own convention.
function getConfig(
uint16 _version,
uint16 _chainId,
address _userApplication,
uint _configType
) external view returns (bytes memory);
// @notice get the send() LayerZero messaging library version
// @param _userApplication - the contract address of the user application
function getSendVersion(address _userApplication) external view returns (uint16);
// @notice get the lzReceive() LayerZero messaging library version
// @param _userApplication - the contract address of the user application
function getReceiveVersion(address _userApplication) external view returns (uint16);
}
// lib/solidity-examples/contracts/token/onft721/interfaces/IONFT721Core.sol
/**
* @dev Interface of the ONFT Core standard
*/
interface IONFT721Core is IERC165 {
/**
* @dev Emitted when "_tokenIds[]" are moved from the "_sender" to ("_dstChainId", "_toAddress")
* "_nonce" is the outbound nonce from
*/
event SendToChain(uint16 indexed _dstChainId, address indexed _from, bytes indexed _toAddress, uint[] _tokenIds);
event ReceiveFromChain(uint16 indexed _srcChainId, bytes indexed _srcAddress, address indexed _toAddress, uint[] _tokenIds);
event SetMinGasToTransferAndStore(uint _minGasToTransferAndStore);
event SetDstChainIdToTransferGas(uint16 _dstChainId, uint _dstChainIdToTransferGas);
event SetDstChainIdToBatchLimit(uint16 _dstChainId, uint _dstChainIdToBatchLimit);
/**
* @dev Emitted when "_payload" was received from lz, but not enough gas to deliver all tokenIds
*/
event CreditStored(bytes32 _hashedPayload, bytes _payload);
/**
* @dev Emitted when "_hashedPayload" has been completely delivered
*/
event CreditCleared(bytes32 _hashedPayload);
/**
* @dev send token "_tokenId" to ("_dstChainId", "_toAddress") from "_from"
* "_toAddress" can be any size depending on the "dstChainId".
* "_zroPaymentAddress" set to address(0x0) if not paying in ZRO (LayerZero Token)
* "_adapterParams" is a flexible bytes array to indicate messaging adapter services
*/
function sendFrom(
address _from,
uint16 _dstChainId,
bytes calldata _toAddress,
uint _tokenId,
address payable _refundAddress,
address _zroPaymentAddress,
bytes calldata _adapterParams
) external payable;
/**
* @dev send tokens "_tokenIds[]" to ("_dstChainId", "_toAddress") from "_from"
* "_toAddress" can be any size depending on the "dstChainId".
* "_zroPaymentAddress" set to address(0x0) if not paying in ZRO (LayerZero Token)
* "_adapterParams" is a flexible bytes array to indicate messaging adapter services
*/
function sendBatchFrom(
address _from,
uint16 _dstChainId,
bytes calldata _toAddress,
uint[] calldata _tokenIds,
address payable _refundAddress,
address _zroPaymentAddress,
bytes calldata _adapterParams
) external payable;
/**
* @dev estimate send token "_tokenId" to ("_dstChainId", "_toAddress")
* _dstChainId - L0 defined chain id to send tokens too
* _toAddress - dynamic bytes array which contains the address to whom you are sending tokens to on the dstChain
* _tokenId - token Id to transfer
* _useZro - indicates to use zro to pay L0 fees
* _adapterParams - flexible bytes array to indicate messaging adapter services in L0
*/
function estimateSendFee(
uint16 _dstChainId,
bytes calldata _toAddress,
uint _tokenId,
bool _useZro,
bytes calldata _adapterParams
) external view returns (uint nativeFee, uint zroFee);
/**
* @dev estimate send token "_tokenId" to ("_dstChainId", "_toAddress")
* _dstChainId - L0 defined chain id to send tokens too
* _toAddress - dynamic bytes array which contains the address to whom you are sending tokens to on the dstChain
* _tokenIds[] - token Ids to transfer
* _useZro - indicates to use zro to pay L0 fees
* _adapterParams - flexible bytes array to indicate messaging adapter services in L0
*/
function estimateSendBatchFee(
uint16 _dstChainId,
bytes calldata _toAddress,
uint[] calldata _tokenIds,
bool _useZro,
bytes calldata _adapterParams
) external view returns (uint nativeFee, uint zroFee);
}
// node_modules/@openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
/**
* @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() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* "onlyOwner" functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(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");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account ("newOwner").
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// node_modules/@openzeppelin/contracts/token/ERC721/IERC721.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.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);
}
// node_modules/@openzeppelin/contracts/utils/introspection/ERC165.sol
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.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;
}
}
// src/KingdomlyAdmin.sol
contract KingdomlyAdmin is Ownable {
uint public kingdomlyBridgeFee;
uint public kingdomlyBridgeZroFee;
constructor(uint _startingBridgeFee, uint _startingBridgeZroFee) Ownable() {
kingdomlyBridgeFee = _startingBridgeFee;
kingdomlyBridgeZroFee = _startingBridgeZroFee;
}
function setBridgeFee(uint _newFee) external onlyOwner {
kingdomlyBridgeFee = _newFee;
}
function setBridgeZroFee(uint _newFee) external onlyOwner {
kingdomlyBridgeZroFee = _newFee;
}
function getBridgeFee() external view returns (uint) {
return kingdomlyBridgeFee;
}
function getBridgeZroFee() external view returns (uint) {
return kingdomlyBridgeZroFee;
}
}
// lib/solidity-examples/contracts/token/onft721/interfaces/IONFT721.sol
/**
* @dev Interface of the ONFT standard
*/
interface IONFT721 is IONFT721Core, IERC721 {
}
// lib/solidity-examples/contracts/lzApp/LzApp.sol
/*
* a generic LzReceiver implementation
*/
abstract contract LzApp is Ownable, ILayerZeroReceiver, ILayerZeroUserApplicationConfig {
using BytesLib for bytes;
// ua can not send payload larger than this by default, but it can be changed by the ua owner
uint public constant DEFAULT_PAYLOAD_SIZE_LIMIT = 10000;
ILayerZeroEndpoint public immutable lzEndpoint;
mapping(uint16 => bytes) public trustedRemoteLookup;
mapping(uint16 => mapping(uint16 => uint)) public minDstGasLookup;
mapping(uint16 => uint) public payloadSizeLimitLookup;
address public precrime;
event SetPrecrime(address precrime);
event SetTrustedRemote(uint16 _remoteChainId, bytes _path);
event SetTrustedRemoteAddress(uint16 _remoteChainId, bytes _remoteAddress);
event SetMinDstGas(uint16 _dstChainId, uint16 _type, uint _minDstGas);
constructor(address _endpoint) {
lzEndpoint = ILayerZeroEndpoint(_endpoint);
}
function lzReceive(
uint16 _srcChainId,
bytes calldata _srcAddress,
uint64 _nonce,
bytes calldata _payload
) public virtual override {
// lzReceive must be called by the endpoint for security
require(_msgSender() == address(lzEndpoint), "LzApp: invalid endpoint caller");
bytes memory trustedRemote = trustedRemoteLookup[_srcChainId];
// if will still block the message pathway from (srcChainId, srcAddress). should not receive message from untrusted remote.
require(
_srcAddress.length == trustedRemote.length && trustedRemote.length > 0 && keccak256(_srcAddress) == keccak256(trustedRemote),
"LzApp: invalid source sending contract"
);
_blockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
}
// abstract function - the default behaviour of LayerZero is blocking. See: NonblockingLzApp if you dont need to enforce ordered messaging
function _blockingLzReceive(
uint16 _srcChainId,
bytes memory _srcAddress,
uint64 _nonce,
bytes memory _payload
) internal virtual;
function _lzSend(
uint16 _dstChainId,
bytes memory _payload,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams,
uint _nativeFee
) internal virtual {
bytes memory trustedRemote = trustedRemoteLookup[_dstChainId];
require(trustedRemote.length != 0, "LzApp: destination chain is not a trusted source");
_checkPayloadSize(_dstChainId, _payload.length);
lzEndpoint.send{value: _nativeFee}(_dstChainId, trustedRemote, _payload, _refundAddress, _zroPaymentAddress, _adapterParams);
}
function _checkGasLimit(
uint16 _dstChainId,
uint16 _type,
bytes memory _adapterParams,
uint _extraGas
) internal view virtual {
uint providedGasLimit = _getGasLimit(_adapterParams);
uint minGasLimit = minDstGasLookup[_dstChainId][_type];
require(minGasLimit > 0, "LzApp: minGasLimit not set");
require(providedGasLimit >= minGasLimit + _extraGas, "LzApp: gas limit is too low");
}
function _getGasLimit(bytes memory _adapterParams) internal pure virtual returns (uint gasLimit) {
require(_adapterParams.length >= 34, "LzApp: invalid adapterParams");
assembly {
gasLimit := mload(add(_adapterParams, 34))
}
}
function _checkPayloadSize(uint16 _dstChainId, uint _payloadSize) internal view virtual {
uint payloadSizeLimit = payloadSizeLimitLookup[_dstChainId];
if (payloadSizeLimit == 0) {
// use default if not set
payloadSizeLimit = DEFAULT_PAYLOAD_SIZE_LIMIT;
}
require(_payloadSize <= payloadSizeLimit, "LzApp: payload size is too large");
}
//---------------------------UserApplication config----------------------------------------
function getConfig(
uint16 _version,
uint16 _chainId,
address,
uint _configType
) external view returns (bytes memory) {
return lzEndpoint.getConfig(_version, _chainId, address(this), _configType);
}
// generic config for LayerZero user Application
function setConfig(
uint16 _version,
uint16 _chainId,
uint _configType,
bytes calldata _config
) external override onlyOwner {
lzEndpoint.setConfig(_version, _chainId, _configType, _config);
}
function setSendVersion(uint16 _version) external override onlyOwner {
lzEndpoint.setSendVersion(_version);
}
function setReceiveVersion(uint16 _version) external override onlyOwner {
lzEndpoint.setReceiveVersion(_version);
}
function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external override onlyOwner {
lzEndpoint.forceResumeReceive(_srcChainId, _srcAddress);
}
// _path = abi.encodePacked(remoteAddress, localAddress)
// this function set the trusted path for the cross-chain communication
function setTrustedRemote(uint16 _remoteChainId, bytes calldata _path) external onlyOwner {
trustedRemoteLookup[_remoteChainId] = _path;
emit SetTrustedRemote(_remoteChainId, _path);
}
function setTrustedRemoteAddress(uint16 _remoteChainId, bytes calldata _remoteAddress) external onlyOwner {
trustedRemoteLookup[_remoteChainId] = abi.encodePacked(_remoteAddress, address(this));
emit SetTrustedRemoteAddress(_remoteChainId, _remoteAddress);
}
function getTrustedRemoteAddress(uint16 _remoteChainId) external view returns (bytes memory) {
bytes memory path = trustedRemoteLookup[_remoteChainId];
require(path.length != 0, "LzApp: no trusted path record");
return path.slice(0, path.length - 20); // the last 20 bytes should be address(this)
}
function setPrecrime(address _precrime) external onlyOwner {
precrime = _precrime;
emit SetPrecrime(_precrime);
}
function setMinDstGas(
uint16 _dstChainId,
uint16 _packetType,
uint _minGas
) external onlyOwner {
minDstGasLookup[_dstChainId][_packetType] = _minGas;
emit SetMinDstGas(_dstChainId, _packetType, _minGas);
}
// if the size is 0, it means default size limit
function setPayloadSizeLimit(uint16 _dstChainId, uint _size) external onlyOwner {
payloadSizeLimitLookup[_dstChainId] = _size;
}
//--------------------------- VIEW FUNCTION ----------------------------------------
function isTrustedRemote(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool) {
bytes memory trustedSource = trustedRemoteLookup[_srcChainId];
return keccak256(trustedSource) == keccak256(_srcAddress);
}
}
// lib/solidity-examples/contracts/lzApp/NonblockingLzApp.sol
/*
* the default LayerZero messaging behaviour is blocking, i.e. any failed message will block the channel
* this abstract class try-catch all fail messages and store locally for future retry. hence, non-blocking
* NOTE: if the srcAddress is not configured properly, it will still block the message pathway from (srcChainId, srcAddress)
*/
abstract contract NonblockingLzApp is LzApp {
using ExcessivelySafeCall for address;
constructor(address _endpoint) LzApp(_endpoint) {}
mapping(uint16 => mapping(bytes => mapping(uint64 => bytes32))) public failedMessages;
event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload, bytes _reason);
event RetryMessageSuccess(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _payloadHash);
// overriding the virtual function in LzReceiver
function _blockingLzReceive(
uint16 _srcChainId,
bytes memory _srcAddress,
uint64 _nonce,
bytes memory _payload
) internal virtual override {
(bool success, bytes memory reason) = address(this).excessivelySafeCall(
gasleft(),
150,
abi.encodeWithSelector(this.nonblockingLzReceive.selector, _srcChainId, _srcAddress, _nonce, _payload)
);
if (!success) {
_storeFailedMessage(_srcChainId, _srcAddress, _nonce, _payload, reason);
}
}
function _storeFailedMessage(
uint16 _srcChainId,
bytes memory _srcAddress,
uint64 _nonce,
bytes memory _payload,
bytes memory _reason
) internal virtual {
failedMessages[_srcChainId][_srcAddress][_nonce] = keccak256(_payload);
emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload, _reason);
}
function nonblockingLzReceive(
uint16 _srcChainId,
bytes calldata _srcAddress,
uint64 _nonce,
bytes calldata _payload
) public virtual {
// only internal transaction
require(_msgSender() == address(this), "NonblockingLzApp: caller must be LzApp");
_nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
}
//@notice override this function
function _nonblockingLzReceive(
uint16 _srcChainId,
bytes memory _srcAddress,
uint64 _nonce,
bytes memory _payload
) internal virtual;
function retryMessage(
uint16 _srcChainId,
bytes calldata _srcAddress,
uint64 _nonce,
bytes calldata _payload
) public payable virtual {
// assert there is message to retry
bytes32 payloadHash = failedMessages[_srcChainId][_srcAddress][_nonce];
require(payloadHash != bytes32(0), "NonblockingLzApp: no stored message");
require(keccak256(_payload) == payloadHash, "NonblockingLzApp: invalid payload");
// clear the stored message
failedMessages[_srcChainId][_srcAddress][_nonce] = bytes32(0);
// execute the message. revert if it fails again
_nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
emit RetryMessageSuccess(_srcChainId, _srcAddress, _nonce, payloadHash);
}
}
// lib/solidity-examples/contracts/token/onft721/ONFT721Core.sol
abstract contract ONFT721Core is NonblockingLzApp, ERC165, ReentrancyGuard, IONFT721Core {
uint16 public constant FUNCTION_TYPE_SEND = 1;
struct StoredCredit {
uint16 srcChainId;
address toAddress;
uint index; // which index of the tokenIds remain
bool creditsRemain;
}
uint public minGasToTransferAndStore; // min amount of gas required to transfer, and also store the payload
mapping(uint16 => uint) public dstChainIdToBatchLimit;
mapping(uint16 => uint) public dstChainIdToTransferGas; // per transfer amount of gas required to mint/transfer on the dst
mapping(bytes32 => StoredCredit) public storedCredits;
constructor(uint _minGasToTransferAndStore, address _lzEndpoint) NonblockingLzApp(_lzEndpoint) {
require(_minGasToTransferAndStore > 0, "minGasToTransferAndStore must be > 0");
minGasToTransferAndStore = _minGasToTransferAndStore;
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IONFT721Core).interfaceId || super.supportsInterface(interfaceId);
}
function estimateSendFee(
uint16 _dstChainId,
bytes memory _toAddress,
uint _tokenId,
bool _useZro,
bytes memory _adapterParams
) public view virtual override returns (uint nativeFee, uint zroFee) {
return estimateSendBatchFee(_dstChainId, _toAddress, _toSingletonArray(_tokenId), _useZro, _adapterParams);
}
function estimateSendBatchFee(
uint16 _dstChainId,
bytes memory _toAddress,
uint[] memory _tokenIds,
bool _useZro,
bytes memory _adapterParams
) public view virtual override returns (uint nativeFee, uint zroFee) {
bytes memory payload = abi.encode(_toAddress, _tokenIds);
return lzEndpoint.estimateFees(_dstChainId, address(this), payload, _useZro, _adapterParams);
}
function sendFrom(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint _tokenId,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams
) public payable virtual override {
_send(_from, _dstChainId, _toAddress, _toSingletonArray(_tokenId), _refundAddress, _zroPaymentAddress, _adapterParams);
}
function sendBatchFrom(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint[] memory _tokenIds,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams
) public payable virtual override {
_send(_from, _dstChainId, _toAddress, _tokenIds, _refundAddress, _zroPaymentAddress, _adapterParams);
}
function _send(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint[] memory _tokenIds,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams
) internal virtual {
// allow 1 by default
require(_tokenIds.length > 0, "tokenIds[] is empty");
require(_tokenIds.length == 1 || _tokenIds.length <= dstChainIdToBatchLimit[_dstChainId], "batch size exceeds dst batch limit");
for (uint i = 0; i < _tokenIds.length; i++) {
_debitFrom(_from, _dstChainId, _toAddress, _tokenIds[i]);
}
bytes memory payload = abi.encode(_toAddress, _tokenIds);
_checkGasLimit(_dstChainId, FUNCTION_TYPE_SEND, _adapterParams, dstChainIdToTransferGas[_dstChainId] * _tokenIds.length);
_lzSend(_dstChainId, payload, _refundAddress, _zroPaymentAddress, _adapterParams, msg.value);
emit SendToChain(_dstChainId, _from, _toAddress, _tokenIds);
}
function _nonblockingLzReceive(
uint16 _srcChainId,
bytes memory _srcAddress,
uint64, /*_nonce*/
bytes memory _payload
) internal virtual override {
// decode and load the toAddress
(bytes memory toAddressBytes, uint[] memory tokenIds) = abi.decode(_payload, (bytes, uint[]));
address toAddress;
assembly {
toAddress := mload(add(toAddressBytes, 20))
}
uint nextIndex = _creditTill(_srcChainId, toAddress, 0, tokenIds);
if (nextIndex < tokenIds.length) {
// not enough gas to complete transfers, store to be cleared in another tx
bytes32 hashedPayload = keccak256(_payload);
storedCredits[hashedPayload] = StoredCredit(_srcChainId, toAddress, nextIndex, true);
emit CreditStored(hashedPayload, _payload);
}
emit ReceiveFromChain(_srcChainId, _srcAddress, toAddress, tokenIds);
}
// Public function for anyone to clear and deliver the remaining batch sent tokenIds
function clearCredits(bytes memory _payload) external virtual nonReentrant {
bytes32 hashedPayload = keccak256(_payload);
require(storedCredits[hashedPayload].creditsRemain, "no credits stored");
(, uint[] memory tokenIds) = abi.decode(_payload, (bytes, uint[]));
uint nextIndex = _creditTill(
storedCredits[hashedPayload].srcChainId,
storedCredits[hashedPayload].toAddress,
storedCredits[hashedPayload].index,
tokenIds
);
require(nextIndex > storedCredits[hashedPayload].index, "not enough gas to process credit transfer");
if (nextIndex == tokenIds.length) {
// cleared the credits, delete the element
delete storedCredits[hashedPayload];
emit CreditCleared(hashedPayload);
} else {
// store the next index to mint
storedCredits[hashedPayload] = StoredCredit(
storedCredits[hashedPayload].srcChainId,
storedCredits[hashedPayload].toAddress,
nextIndex,
true
);
}
}
// When a srcChain has the ability to transfer more chainIds in a single tx than the dst can do.
// Needs the ability to iterate and stop if the minGasToTransferAndStore is not met
function _creditTill(
uint16 _srcChainId,
address _toAddress,
uint _startIndex,
uint[] memory _tokenIds
) internal returns (uint) {
uint i = _startIndex;
while (i < _tokenIds.length) {
// if not enough gas to process, store this index for next loop
if (gasleft() < minGasToTransferAndStore) break;
_creditTo(_srcChainId, _toAddress, _tokenIds[i]);
i++;
}
// indicates the next index to send of tokenIds,
// if i == tokenIds.length, we are finished
return i;
}
function setMinGasToTransferAndStore(uint _minGasToTransferAndStore) external onlyOwner {
require(_minGasToTransferAndStore > 0, "minGasToTransferAndStore must be > 0");
minGasToTransferAndStore = _minGasToTransferAndStore;
emit SetMinGasToTransferAndStore(_minGasToTransferAndStore);
}
// ensures enough gas in adapter params to handle batch transfer gas amounts on the dst
function setDstChainIdToTransferGas(uint16 _dstChainId, uint _dstChainIdToTransferGas) external onlyOwner {
require(_dstChainIdToTransferGas > 0, "dstChainIdToTransferGas must be > 0");
dstChainIdToTransferGas[_dstChainId] = _dstChainIdToTransferGas;
emit SetDstChainIdToTransferGas(_dstChainId, _dstChainIdToTransferGas);
}
// limit on src the amount of tokens to batch send
function setDstChainIdToBatchLimit(uint16 _dstChainId, uint _dstChainIdToBatchLimit) external onlyOwner {
require(_dstChainIdToBatchLimit > 0, "dstChainIdToBatchLimit must be > 0");
dstChainIdToBatchLimit[_dstChainId] = _dstChainIdToBatchLimit;
emit SetDstChainIdToBatchLimit(_dstChainId, _dstChainIdToBatchLimit);
}
function _debitFrom(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint _tokenId
) internal virtual;
function _creditTo(
uint16 _srcChainId,
address _toAddress,
uint _tokenId
) internal virtual;
function _toSingletonArray(uint element) internal pure returns (uint[] memory) {
uint[] memory array = new uint[](1);
array[0] = element;
return array;
}
}
// lib/solidity-examples/contracts/token/onft721/ONFT721A.sol
// DISCLAIMER:
// This contract can only be deployed on one chain and must be the first minter of each token id!
// This is because ERC721A does not have the ability to mint a specific token id.
// Other chains must have ONFT721 deployed.
// NOTE: this ONFT contract has no public minting logic.
// must implement your own minting logic in child contract
contract ONFT721A is ONFT721Core, ERC721A, ERC721A__IERC721Receiver {
constructor(
string memory _name,
string memory _symbol,
uint _minGasToTransferAndStore,
address _lzEndpoint
) ERC721A(_name, _symbol) ONFT721Core(_minGasToTransferAndStore, _lzEndpoint) {}
function supportsInterface(bytes4 interfaceId) public view virtual override(ONFT721Core, ERC721A) returns (bool) {
return interfaceId == type(IONFT721Core).interfaceId || super.supportsInterface(interfaceId);
}
function _debitFrom(
address _from,
uint16,
bytes memory,
uint _tokenId
) internal virtual override(ONFT721Core) {
safeTransferFrom(_from, address(this), _tokenId);
}
function _creditTo(
uint16,
address _toAddress,
uint _tokenId
) internal virtual override(ONFT721Core) {
require(_exists(_tokenId) && ERC721A.ownerOf(_tokenId) == address(this));
safeTransferFrom(address(this), _toAddress, _tokenId);
}
function onERC721Received(
address,
address,
uint,
bytes memory
) public virtual override returns (bytes4) {
return ERC721A__IERC721Receiver.onERC721Received.selector;
}
}
// src/Grand_Conquest.sol
error MintInactive();
error Unauthorized(address caller);
error InvalidOperation(string reason);
error ExceedsMaxSupply(uint256 requested, uint256 available);
error InsufficientEther(uint256 required, uint256 provided);
error ExceedsMaxPerWallet(uint256 requested, uint256 allowed);
error ExceedsMintQuota(uint256 requested, uint256 allowed);
error ExceedsMaxMintGroupSupply(uint256 requested, uint256 available); // Remove when allowlist is off
error MintGroupInactive(uint256 mintId); // Remove when allowlist is off
error NotInPresale(address caller, uint256 mintId); // Remove when allowlist is off
error MintGroupDoesNotExist(uint256 mintId); // Remove when allowlist is off
error ArrayLengthMismatch(); // Remove when allowlist is off
contract Grand_Conquest is ONFT721A {
event BatchMetadataUpdate(
uint256 indexed fromTokenId,
uint256 indexed toTokenId
);
event TokensMinted(
address indexed recipient,
uint256 amount,
uint256 mintId,
address affiliate
);
event SalePriceChanged(uint256 indexed mintId, uint256 newPrice);
struct BaseVariables {
string name;
string symbol;
address ownerPayoutAddress;
string initialBaseURI;
uint256 maxSupply;
uint256 threeDollarsEth;
}
//Base variables
mapping(address => uint256) private pendingBalances;
uint256 public maxSupply;
uint256 public threeDollarsEth;
bool public mintLive = false;
string public baseURI;
address public feeAddress;
address public ownerPayoutAddress;
//Affiliates variables
uint256 public affiliatePercentage;
//Bridge variables
KingdomlyAdmin public kingdomlyAdminContract;
address public kingdomlyAddress;
//Map pairings.
mapping(uint256 => uint256) public maxMintPerWallet;
mapping(uint256 => uint256) public mintPrice;
mapping(uint256 => uint256) public maxSupplyPerMintGroup;
mapping(uint256 => uint256) public mintGroupMints;
mapping(address => mapping(uint256 => uint256)) private addressMints; // Added address mints for mint group cap
mapping(uint256 => mapping(address => uint256)) public mintQuotas; // Changed presale checker to mintQuotas for individual addresses
mapping(uint256 => bool) public presaleActive;
uint256[] public activeMintGroups; //Array to get all active mint groups. Remove when allowlist is off
constructor(
//Base variables
BaseVariables memory _baseVariables,
//Allowlist variables
uint256[] memory _maxMintPerWallet, // Turn into uint256 if allowlist is off
uint256[] memory _maxSupplyPerMintGroup, // Remove if allowlist is off
uint256[] memory _mintPrice, // Turn into uint256 if allowlist is off
//ONFT variables
uint _minGasToTransferAndStore,
address _lzEndpoint,
//Bridge Variables
address _kingdomlyAddress,
address _kingdomlyAdminContractAddress
)
ONFT721A(
_baseVariables.name,
_baseVariables.symbol,
_minGasToTransferAndStore,
_lzEndpoint
)
{
//Error handler to check if map pairs each other. Remove if allowlist is off
if (
_maxMintPerWallet.length != _maxSupplyPerMintGroup.length &&
_maxMintPerWallet.length != _mintPrice.length
) {
revert ArrayLengthMismatch();
}
//Remove if allowlist is off
uint256 totalMaxSupplyPerMintGroup = 0;
for (uint256 i = 0; i < _maxSupplyPerMintGroup.length; i++) {
totalMaxSupplyPerMintGroup += _maxSupplyPerMintGroup[i];
maxSupplyPerMintGroup[i] = _maxSupplyPerMintGroup[i];
maxMintPerWallet[i] = _maxMintPerWallet[i];
mintPrice[i] = _mintPrice[i];
mintGroupMints[i] = 0;
activeMintGroups.push(i);
}
//Checker if max supply per mint group exceeds total max supply. Remove if allowlist is off
if (totalMaxSupplyPerMintGroup > _baseVariables.maxSupply) {
revert InvalidOperation({
reason: "Max supply per mint group exceeds total max supply"
});
}
//Base variables
maxSupply = _baseVariables.maxSupply;
threeDollarsEth = _baseVariables.threeDollarsEth;
baseURI = _baseVariables.initialBaseURI;
ownerPayoutAddress = _baseVariables.ownerPayoutAddress;
feeAddress = 0x428Deb81A93BeD820068724eb1fCc7503d71e417;
kingdomlyAddress = _kingdomlyAddress;
kingdomlyAdminContract = KingdomlyAdmin(_kingdomlyAdminContractAddress);
affiliatePercentage = 0;
}
//===================================START Allowlist Functions===================================//
// Initializer for new mint groups for all maps
function initializeNewMintGroup(uint256 mintId) internal {
mintPrice[mintId] = 0;
maxMintPerWallet[mintId] = 0;
maxSupplyPerMintGroup[mintId] = 0;
mintGroupMints[mintId] = 0;
activeMintGroups.push(mintId);
}
function isMintGroupActive(uint256 mintId) private view returns (bool) {
for (uint256 i = 0; i < activeMintGroups.length; i++) {
if (activeMintGroups[i] == mintId) {
return true;
}
}
return false;
}
// Changes the max mint per mint group. Only the contract owner can call this function. Remove this function if allowlist is off
function setNewMaxPerMintGroup(
uint256 mintId,
uint256 newMax
) public onlyOwner {
//Checks if mintId already exists inside activeMintGroups. This allows the contract to adjust the mappings for new mint groups
if (!isMintGroupActive(mintId)) {
initializeNewMintGroup(mintId);
}
// Checker if new max exceeds total supply
uint256 totalMaxMintPerMG = 0;
for (uint256 i = 0; i < activeMintGroups.length; i++) {
if (activeMintGroups[i] == mintId) {
totalMaxMintPerMG += newMax; // Use the new max for the specified mintId
} else {
totalMaxMintPerMG += maxSupplyPerMintGroup[activeMintGroups[i]];
}
}
if (totalMaxMintPerMG > maxSupply) {
revert InvalidOperation({
reason: "New supply per mint group exceeds total supply."
});
}
maxSupplyPerMintGroup[mintId] = newMax;
}
// Changed add to presale to set mint quota for individual addresses.
function setMintQuota(
address[] memory addressToAdd,
uint256 mintId,
uint256[] memory _mintQuotas
) external onlyOwner {
//Checks if mintId already exists inside activeMintGroups. This allows the contract to adjust the mappings for new mint groups
if (!isMintGroupActive(mintId)) {
initializeNewMintGroup(mintId);
}
for (uint256 i = 0; i < addressToAdd.length; i++) {
mintQuotas[mintId][addressToAdd[i]] = _mintQuotas[i];
}
}
// Control the presale status
function stopOrStartpresaleMint(
bool presaleStatus,
uint256 mintId
) public onlyOwner {
//Checks if mintId already exists inside activeMintGroups.
if (!isMintGroupActive(mintId)) {
revert MintGroupDoesNotExist({mintId: mintId});
}
presaleActive[mintId] = presaleStatus;
}
//===================================END Allowlist Functions===================================//
// Sets the maximum number of tokens that can be minted in a batch. Only the contract owner can call this function.
function setMaxMintPerWallet(
uint256 newMaxMintPerWallet,
uint256 mintGroupId
) public onlyOwner {
maxMintPerWallet[mintGroupId] = newMaxMintPerWallet;
}
// Changes the price to mint a token. Only the contract owner can call this function.
function changeSalePrice(
uint256 newMintPrice,
uint256 mintId
) public onlyOwner {
//Checks if mintId already exists inside activeMintGroups. This allows the contract to adjust the mappings for new mint groups
if (!isMintGroupActive(mintId)) {
initializeNewMintGroup(mintId);
}
mintPrice[mintId] = newMintPrice;
emit SalePriceChanged(mintId, newMintPrice);
}
//===================================START Affiliate Functions===================================//
// Changes the affiliate percentage. Only the contract owner can call this function. Note: 100 = 100%
function setAffiliatePercentage(
uint256 _affiliatePercentage
) public onlyOwner {
if (_affiliatePercentage > 100) {
revert InvalidOperation({reason: "value must be <= 100"});
}
affiliatePercentage = _affiliatePercentage;
}
//===================================END Affiliate Functions===================================//
//===================================START Mint Functions===================================//
// Cleaner and more efficient batchMint function
function batchMint(
uint256 amount,
uint256 mintId, // Remove if allowlist is off
address affiliate // Remove if affilaites is off
) external payable returns (uint256 totalCostWithFee) {
// Checker for connected wallet
if (
amount + addressMints[msg.sender][mintId] > maxMintPerWallet[mintId]
) {
revert ExceedsMaxPerWallet({
requested: amount,
allowed: maxMintPerWallet[mintId] -
addressMints[msg.sender][mintId]
});
}
addressMints[msg.sender][mintId] += amount;
// NOTE: Checks and Effects should always be before (avoid reentrancy!)
totalCostWithFee = _batchMint(msg.sender, amount, mintId, affiliate);
emit TokensMinted(msg.sender, amount, mintId, affiliate);
_refundExcessEther(totalCostWithFee);
}
//==================START Internal Mint Functions==================//
function _batchMint(
address delegatedCaller,
uint256 amount,
uint256 mintId,
address affiliate
) internal returns (uint256) {
if (amount == 0) {
revert InvalidOperation({reason: "Amount must be greater than 0"});
}
// Pre-conditions checks
if (!mintLive) {
revert MintInactive();
}
if (!presaleActive[mintId]) {
revert MintGroupInactive({mintId: mintId});
}
if (mintId != 0) {
if (mintQuotas[mintId][delegatedCaller] == 0) {
revert NotInPresale({caller: delegatedCaller, mintId: mintId});
}
if (amount > mintQuotas[mintId][delegatedCaller]) {
revert ExceedsMintQuota({
requested: amount,
allowed: mintQuotas[mintId][delegatedCaller]
});
}
mintQuotas[mintId][delegatedCaller] -= amount;
}
if (mintGroupMints[mintId] + amount > maxSupplyPerMintGroup[mintId]) {
revert ExceedsMaxMintGroupSupply({
requested: amount,
available: maxSupplyPerMintGroup[mintId] -
mintGroupMints[mintId]
});
}
if (totalSupply() + amount > maxSupply) {
revert ExceedsMaxSupply({
requested: amount,
available: maxSupply - totalSupply()
});
}
// Calculate fees, check if we have enough msg.value
(uint256 totalCostWithFee, uint256 feeAmount) = quoteBatchMint(
mintId,
amount
);
uint256 totalCost = totalCostWithFee - feeAmount;
if (msg.value < totalCostWithFee) {
revert InsufficientEther({
required: totalCostWithFee,
provided: msg.value
});
}
// Update balances
pendingBalances[feeAddress] += feeAmount;
if (
affiliatePercentage != 0 &&
affiliate != address(0) &&
affiliate != msg.sender &&
affiliate != delegatedCaller
) {
// affiliate fees are due
uint256 affiliateAmount = (totalCost * affiliatePercentage) / 100;
pendingBalances[ownerPayoutAddress] += totalCost - affiliateAmount;
pendingBalances[affiliate] += affiliateAmount;
totalCost -= affiliateAmount; // Adjust total cost after affiliate share
} else {
// affliiate fees are NOT due
pendingBalances[ownerPayoutAddress] += totalCost;
}
// Finalize minting
mintGroupMints[mintId] += amount;
_safeMint(msg.sender, amount);
return totalCostWithFee;
}
// @notice Quote the total cost of minting a batch of tokens
// @dev This is the same price for both the owner and the delegate
// @param mintId The mint group ID
// @param amount The number of tokens to mint
// @return totalCostWithFee The total cost of minting the batch, including the fee
// @return feeAmount The fee amount only for minting the batch
function quoteBatchMint(
uint256 mintId,
uint256 amount
) public view returns (uint256 totalCostWithFee, uint256 feeAmount) {
uint256 totalCost = mintPrice[mintId] * amount;
feeAmount = ((totalCost * 3) / 100) + (threeDollarsEth * amount); // 3% + 3$ fee
totalCostWithFee = totalCost + feeAmount;
}
//===================================END Mint Functions===================================//
//===================================START Base Functions===================================//
// Changes the minting status. Only the contract owner can call this function.
function changeMintStatus(bool status) public onlyOwner {
if (mintLive == status) {
revert InvalidOperation({
reason: "Mint status is already the one you entered"
});
}
mintLive = status;
}
// Sets the base URI for the token metadata. Only the contract owner can call this function.
function setBaseURI(string memory newBaseURI) public onlyOwner {
baseURI = newBaseURI;
emit BatchMetadataUpdate(1, type(uint256).max); // Signal that all token metadata has been updated
}
function _withdrawFor(address user) internal returns (uint256 payout) {
payout = pendingBalances[user];
pendingBalances[user] = 0;
(bool success, ) = payable(user).call{value: payout}("");
if (!success) {
revert InvalidOperation({reason: "Withdraw Transfer Failed"});
}
}
// Allows the contract owner to withdraw the funds that have been paid into the contract.
function withdrawMintFunds() public {
_withdrawFor(ownerPayoutAddress);
_withdrawFor(feeAddress);
}
// Allows the fee address to withdraw their portion of the funds.
function withdrawFeeFunds() public {
_withdrawFor(feeAddress);
}
// Allows the affiliate to withdraw their portion of the mint funds in ETH.
function withdrawAffiliateMintFunds() public {
_withdrawFor(msg.sender);
}
// Internal function to refund excess Ether sent in a transaction
function _refundExcessEther(uint256 totalCharge) internal {
uint256 excess = msg.value - totalCharge;
if (excess > 0) {
(bool success, ) = payable(msg.sender).call{value: excess}("");
if (!success) {
pendingBalances[msg.sender] += excess;
}
}
}
// Returns the base URI for the token metadata.
function _baseURI() internal view override returns (string memory) {
return baseURI;
}
// Checks the balance pending withdrawal for the sender.
function checkPendingBalance() public view returns (uint256) {
return pendingBalances[msg.sender];
}
// Overrides the start token ID function from the ONFT721A contract.
function _startTokenId() internal view virtual override returns (uint256) {
return 1;
}
// Overrides the supports interface function to add support for the ONFT721A interface.
function supportsInterface(
bytes4 interfaceId
) public view override(ONFT721A) returns (bool) {
return
ONFT721A.supportsInterface(interfaceId) ;
}
//===================================END Base Functions===================================//
//===================================START Bridge Functions===================================//
function sendFrom(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint _tokenId,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams
) public payable virtual override {
(uint nativeFee, uint zroFee) = estimateSendFee(
_dstChainId,
_toAddress,
_tokenId,
false,
_adapterParams
);
require(
getKingdomlyBridgeFee() + nativeFee >= msg.value,
"Insufficient Ether or ZRO sent for the send fee"
);
_send(
_from,
_dstChainId,
_toAddress,
_toSingletonArray(_tokenId),
payable(kingdomlyAddress),
_zroPaymentAddress,
_adapterParams
);
}
function sendBatchFrom(
address _from,
uint16 _dstChainId,
bytes memory _toAddress,
uint[] memory _tokenIds,
address payable _refundAddress,
address _zroPaymentAddress,
bytes memory _adapterParams
) public payable virtual override {
(uint nativeFee, uint zroFee) = estimateSendBatchFee(
_dstChainId,
_toAddress,
_tokenIds,
false,
_adapterParams
);
require(
(getKingdomlyBridgeFee() * _tokenIds.length) + nativeFee >=
msg.value,
"Insufficient Ether or ZRO sent for the send fee"
);
_send(
_from,
_dstChainId,
_toAddress,
_tokenIds,
payable(kingdomlyAddress),
_zroPaymentAddress,
_adapterParams
);
}
function getKingdomlyAdminContractAddress() public view returns (address) {
return kingdomlyAddress;
}
function getKingdomlyBridgeFee() public view returns (uint) {
return kingdomlyAdminContract.getBridgeFee();
}
function getKingdomlyBridgeZroFee() public view returns (uint) {
return kingdomlyAdminContract.getBridgeZroFee();
}
function switchKingdomlyAdminContractAddress(
address _newKingdomlyAdminAddress
) public {
require(
msg.sender == kingdomlyAddress,
"ONFT721: only kingdomly can switch admin contract"
);
kingdomlyAdminContract = KingdomlyAdmin(_newKingdomlyAdminAddress);
}
//===================================END Bridge Functions===================================//
}{
"compilationTarget": {
"Grand_Conquest.sol": "Grand_Conquest"
},
"evmVersion": "shanghai",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
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