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ERC-20
Add Token to MetaMask (Web3)Overview
Max Total Supply
2,100,000 BMP
Holders
20,849
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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| # | Exchange | Pair | Price | 24H Volume | % Volume |
|---|
Contract Source Code Verified (Exact Match)
Contract Name:
BitmapPunks
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 1000 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import {OwnableRoles} from "solady/auth/OwnableRoles.sol";
import {BitmapBT404} from "../bt404/BitmapBT404.sol";
contract BitmapPunks is BitmapBT404, OwnableRoles {
/// @dev The role that can update the fee configurations of the contract.
uint256 private constant _FEE_MANAGER_ROLE = _ROLE_101;
uint32 public constant MAX_SUPPLY = 2_100_000;
uint32 public constant MAX_PER_WALLET = 100;
uint32 public constant MAX_PER_WALLET_SEND_TO = 5;
error Locked();
error InvalidMint();
error TotalSupplyReached();
string private _name;
string private _symbol;
uint32 public totalMinted;
bool public nameAndSymbolLocked;
bool public mintable;
mapping(address sender => mapping(address receiver => uint256 nftAmount)) private _sendAmount;
mapping(address sender => uint256 walletAmount) private _sendWallets;
constructor(address mirror) {
_initializeOwner(tx.origin);
_name = "BitmapPunks";
_symbol = "BMP";
_initializeBT404(0, address(0), mirror, tx.origin);
}
modifier checkAndUpdateTotalMinted(uint256 nftAmount) {
uint256 newTotalMinted = uint256(totalMinted) + nftAmount;
require(newTotalMinted <= MAX_SUPPLY, TotalSupplyReached());
totalMinted = uint32(newTotalMinted);
_;
}
modifier checkAndUpdateBuyerMintCount(uint256 nftAmount) {
uint256 currentMintCount = _getAux(msg.sender);
uint256 newMintCount = currentMintCount + nftAmount;
require(newMintCount <= MAX_PER_WALLET, InvalidMint());
_setAux(msg.sender, uint56(newMintCount));
_;
}
modifier checkMintable() {
require(mintable, InvalidMint());
_;
}
function name() public view override returns (string memory) {
return _name;
}
function symbol() public view override returns (string memory) {
return _symbol;
}
function mint(uint256 nftAmount)
public
payable
checkMintable
checkAndUpdateBuyerMintCount(nftAmount)
checkAndUpdateTotalMinted(nftAmount)
{
_mint(msg.sender, nftAmount * _unit());
}
function mint(address to, uint256 nftAmount)
public
payable
checkMintable
checkAndUpdateTotalMinted(nftAmount)
{
uint256 minted = _sendAmount[msg.sender][to];
require(minted + nftAmount <= MAX_PER_WALLET / MAX_PER_WALLET_SEND_TO, InvalidMint());
if (minted == 0) {
require(_sendWallets[msg.sender] < MAX_PER_WALLET_SEND_TO, InvalidMint());
_sendWallets[msg.sender] += 1;
}
_sendAmount[msg.sender][to] += nftAmount;
_mint(to, nftAmount * _unit());
}
function setExchangeNFTFeeRate(uint256 feeBips) public onlyOwnerOrRoles(_FEE_MANAGER_ROLE) {
_setExchangeNFTFeeRate(feeBips);
}
function setNameAndSymbol(string memory name_, string memory symbol_) public onlyOwner {
require(!nameAndSymbolLocked, Locked());
_name = name_;
_symbol = symbol_;
}
function lockNameAndSymbol() public onlyOwner {
nameAndSymbolLocked = true;
}
function setMintable(bool mintable_) public onlyOwner {
mintable = mintable_;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import {Ownable} from "./Ownable.sol";
/// @notice Simple single owner and multiroles authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/OwnableRoles.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract OwnableRoles is Ownable {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The `user`'s roles is updated to `roles`.
/// Each bit of `roles` represents whether the role is set.
event RolesUpdated(address indexed user, uint256 indexed roles);
/// @dev `keccak256(bytes("RolesUpdated(address,uint256)"))`.
uint256 private constant _ROLES_UPDATED_EVENT_SIGNATURE =
0x715ad5ce61fc9595c7b415289d59cf203f23a94fa06f04af7e489a0a76e1fe26;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The role slot of `user` is given by:
/// ```
/// mstore(0x00, or(shl(96, user), _ROLE_SLOT_SEED))
/// let roleSlot := keccak256(0x00, 0x20)
/// ```
/// This automatically ignores the upper bits of the `user` in case
/// they are not clean, as well as keep the `keccak256` under 32-bytes.
///
/// Note: This is equivalent to `uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))`.
uint256 private constant _ROLE_SLOT_SEED = 0x8b78c6d8;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Overwrite the roles directly without authorization guard.
function _setRoles(address user, uint256 roles) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
// Store the new value.
sstore(keccak256(0x0c, 0x20), roles)
// Emit the {RolesUpdated} event.
log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), roles)
}
}
/// @dev Updates the roles directly without authorization guard.
/// If `on` is true, each set bit of `roles` will be turned on,
/// otherwise, each set bit of `roles` will be turned off.
function _updateRoles(address user, uint256 roles, bool on) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
let roleSlot := keccak256(0x0c, 0x20)
// Load the current value.
let current := sload(roleSlot)
// Compute the updated roles if `on` is true.
let updated := or(current, roles)
// Compute the updated roles if `on` is false.
// Use `and` to compute the intersection of `current` and `roles`,
// `xor` it with `current` to flip the bits in the intersection.
if iszero(on) { updated := xor(current, and(current, roles)) }
// Then, store the new value.
sstore(roleSlot, updated)
// Emit the {RolesUpdated} event.
log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), updated)
}
}
/// @dev Grants the roles directly without authorization guard.
/// Each bit of `roles` represents the role to turn on.
function _grantRoles(address user, uint256 roles) internal virtual {
_updateRoles(user, roles, true);
}
/// @dev Removes the roles directly without authorization guard.
/// Each bit of `roles` represents the role to turn off.
function _removeRoles(address user, uint256 roles) internal virtual {
_updateRoles(user, roles, false);
}
/// @dev Throws if the sender does not have any of the `roles`.
function _checkRoles(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Throws if the sender is not the owner,
/// and does not have any of the `roles`.
/// Checks for ownership first, then lazily checks for roles.
function _checkOwnerOrRoles(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// If the caller is not the stored owner.
// Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Throws if the sender does not have any of the `roles`,
/// and is not the owner.
/// Checks for roles first, then lazily checks for ownership.
function _checkRolesOrOwner(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
// If the caller is not the stored owner.
// Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Convenience function to return a `roles` bitmap from an array of `ordinals`.
/// This is meant for frontends like Etherscan, and is therefore not fully optimized.
/// Not recommended to be called on-chain.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _rolesFromOrdinals(uint8[] memory ordinals) internal pure returns (uint256 roles) {
/// @solidity memory-safe-assembly
assembly {
for { let i := shl(5, mload(ordinals)) } i { i := sub(i, 0x20) } {
// We don't need to mask the values of `ordinals`, as Solidity
// cleans dirty upper bits when storing variables into memory.
roles := or(shl(mload(add(ordinals, i)), 1), roles)
}
}
}
/// @dev Convenience function to return an array of `ordinals` from the `roles` bitmap.
/// This is meant for frontends like Etherscan, and is therefore not fully optimized.
/// Not recommended to be called on-chain.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _ordinalsFromRoles(uint256 roles) internal pure returns (uint8[] memory ordinals) {
/// @solidity memory-safe-assembly
assembly {
// Grab the pointer to the free memory.
ordinals := mload(0x40)
let ptr := add(ordinals, 0x20)
let o := 0
// The absence of lookup tables, De Bruijn, etc., here is intentional for
// smaller bytecode, as this function is not meant to be called on-chain.
for { let t := roles } 1 {} {
mstore(ptr, o)
// `shr` 5 is equivalent to multiplying by 0x20.
// Push back into the ordinals array if the bit is set.
ptr := add(ptr, shl(5, and(t, 1)))
o := add(o, 1)
t := shr(o, roles)
if iszero(t) { break }
}
// Store the length of `ordinals`.
mstore(ordinals, shr(5, sub(ptr, add(ordinals, 0x20))))
// Allocate the memory.
mstore(0x40, ptr)
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC UPDATE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Allows the owner to grant `user` `roles`.
/// If the `user` already has a role, then it will be an no-op for the role.
function grantRoles(address user, uint256 roles) public payable virtual onlyOwner {
_grantRoles(user, roles);
}
/// @dev Allows the owner to remove `user` `roles`.
/// If the `user` does not have a role, then it will be an no-op for the role.
function revokeRoles(address user, uint256 roles) public payable virtual onlyOwner {
_removeRoles(user, roles);
}
/// @dev Allow the caller to remove their own roles.
/// If the caller does not have a role, then it will be an no-op for the role.
function renounceRoles(uint256 roles) public payable virtual {
_removeRoles(msg.sender, roles);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC READ FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the roles of `user`.
function rolesOf(address user) public view virtual returns (uint256 roles) {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
// Load the stored value.
roles := sload(keccak256(0x0c, 0x20))
}
}
/// @dev Returns whether `user` has any of `roles`.
function hasAnyRole(address user, uint256 roles) public view virtual returns (bool) {
return rolesOf(user) & roles != 0;
}
/// @dev Returns whether `user` has all of `roles`.
function hasAllRoles(address user, uint256 roles) public view virtual returns (bool) {
return rolesOf(user) & roles == roles;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MODIFIERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Marks a function as only callable by an account with `roles`.
modifier onlyRoles(uint256 roles) virtual {
_checkRoles(roles);
_;
}
/// @dev Marks a function as only callable by the owner or by an account
/// with `roles`. Checks for ownership first, then lazily checks for roles.
modifier onlyOwnerOrRoles(uint256 roles) virtual {
_checkOwnerOrRoles(roles);
_;
}
/// @dev Marks a function as only callable by an account with `roles`
/// or the owner. Checks for roles first, then lazily checks for ownership.
modifier onlyRolesOrOwner(uint256 roles) virtual {
_checkRolesOrOwner(roles);
_;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ROLE CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// IYKYK
uint256 internal constant _ROLE_0 = 1 << 0;
uint256 internal constant _ROLE_1 = 1 << 1;
uint256 internal constant _ROLE_2 = 1 << 2;
uint256 internal constant _ROLE_3 = 1 << 3;
uint256 internal constant _ROLE_4 = 1 << 4;
uint256 internal constant _ROLE_5 = 1 << 5;
uint256 internal constant _ROLE_6 = 1 << 6;
uint256 internal constant _ROLE_7 = 1 << 7;
uint256 internal constant _ROLE_8 = 1 << 8;
uint256 internal constant _ROLE_9 = 1 << 9;
uint256 internal constant _ROLE_10 = 1 << 10;
uint256 internal constant _ROLE_11 = 1 << 11;
uint256 internal constant _ROLE_12 = 1 << 12;
uint256 internal constant _ROLE_13 = 1 << 13;
uint256 internal constant _ROLE_14 = 1 << 14;
uint256 internal constant _ROLE_15 = 1 << 15;
uint256 internal constant _ROLE_16 = 1 << 16;
uint256 internal constant _ROLE_17 = 1 << 17;
uint256 internal constant _ROLE_18 = 1 << 18;
uint256 internal constant _ROLE_19 = 1 << 19;
uint256 internal constant _ROLE_20 = 1 << 20;
uint256 internal constant _ROLE_21 = 1 << 21;
uint256 internal constant _ROLE_22 = 1 << 22;
uint256 internal constant _ROLE_23 = 1 << 23;
uint256 internal constant _ROLE_24 = 1 << 24;
uint256 internal constant _ROLE_25 = 1 << 25;
uint256 internal constant _ROLE_26 = 1 << 26;
uint256 internal constant _ROLE_27 = 1 << 27;
uint256 internal constant _ROLE_28 = 1 << 28;
uint256 internal constant _ROLE_29 = 1 << 29;
uint256 internal constant _ROLE_30 = 1 << 30;
uint256 internal constant _ROLE_31 = 1 << 31;
uint256 internal constant _ROLE_32 = 1 << 32;
uint256 internal constant _ROLE_33 = 1 << 33;
uint256 internal constant _ROLE_34 = 1 << 34;
uint256 internal constant _ROLE_35 = 1 << 35;
uint256 internal constant _ROLE_36 = 1 << 36;
uint256 internal constant _ROLE_37 = 1 << 37;
uint256 internal constant _ROLE_38 = 1 << 38;
uint256 internal constant _ROLE_39 = 1 << 39;
uint256 internal constant _ROLE_40 = 1 << 40;
uint256 internal constant _ROLE_41 = 1 << 41;
uint256 internal constant _ROLE_42 = 1 << 42;
uint256 internal constant _ROLE_43 = 1 << 43;
uint256 internal constant _ROLE_44 = 1 << 44;
uint256 internal constant _ROLE_45 = 1 << 45;
uint256 internal constant _ROLE_46 = 1 << 46;
uint256 internal constant _ROLE_47 = 1 << 47;
uint256 internal constant _ROLE_48 = 1 << 48;
uint256 internal constant _ROLE_49 = 1 << 49;
uint256 internal constant _ROLE_50 = 1 << 50;
uint256 internal constant _ROLE_51 = 1 << 51;
uint256 internal constant _ROLE_52 = 1 << 52;
uint256 internal constant _ROLE_53 = 1 << 53;
uint256 internal constant _ROLE_54 = 1 << 54;
uint256 internal constant _ROLE_55 = 1 << 55;
uint256 internal constant _ROLE_56 = 1 << 56;
uint256 internal constant _ROLE_57 = 1 << 57;
uint256 internal constant _ROLE_58 = 1 << 58;
uint256 internal constant _ROLE_59 = 1 << 59;
uint256 internal constant _ROLE_60 = 1 << 60;
uint256 internal constant _ROLE_61 = 1 << 61;
uint256 internal constant _ROLE_62 = 1 << 62;
uint256 internal constant _ROLE_63 = 1 << 63;
uint256 internal constant _ROLE_64 = 1 << 64;
uint256 internal constant _ROLE_65 = 1 << 65;
uint256 internal constant _ROLE_66 = 1 << 66;
uint256 internal constant _ROLE_67 = 1 << 67;
uint256 internal constant _ROLE_68 = 1 << 68;
uint256 internal constant _ROLE_69 = 1 << 69;
uint256 internal constant _ROLE_70 = 1 << 70;
uint256 internal constant _ROLE_71 = 1 << 71;
uint256 internal constant _ROLE_72 = 1 << 72;
uint256 internal constant _ROLE_73 = 1 << 73;
uint256 internal constant _ROLE_74 = 1 << 74;
uint256 internal constant _ROLE_75 = 1 << 75;
uint256 internal constant _ROLE_76 = 1 << 76;
uint256 internal constant _ROLE_77 = 1 << 77;
uint256 internal constant _ROLE_78 = 1 << 78;
uint256 internal constant _ROLE_79 = 1 << 79;
uint256 internal constant _ROLE_80 = 1 << 80;
uint256 internal constant _ROLE_81 = 1 << 81;
uint256 internal constant _ROLE_82 = 1 << 82;
uint256 internal constant _ROLE_83 = 1 << 83;
uint256 internal constant _ROLE_84 = 1 << 84;
uint256 internal constant _ROLE_85 = 1 << 85;
uint256 internal constant _ROLE_86 = 1 << 86;
uint256 internal constant _ROLE_87 = 1 << 87;
uint256 internal constant _ROLE_88 = 1 << 88;
uint256 internal constant _ROLE_89 = 1 << 89;
uint256 internal constant _ROLE_90 = 1 << 90;
uint256 internal constant _ROLE_91 = 1 << 91;
uint256 internal constant _ROLE_92 = 1 << 92;
uint256 internal constant _ROLE_93 = 1 << 93;
uint256 internal constant _ROLE_94 = 1 << 94;
uint256 internal constant _ROLE_95 = 1 << 95;
uint256 internal constant _ROLE_96 = 1 << 96;
uint256 internal constant _ROLE_97 = 1 << 97;
uint256 internal constant _ROLE_98 = 1 << 98;
uint256 internal constant _ROLE_99 = 1 << 99;
uint256 internal constant _ROLE_100 = 1 << 100;
uint256 internal constant _ROLE_101 = 1 << 101;
uint256 internal constant _ROLE_102 = 1 << 102;
uint256 internal constant _ROLE_103 = 1 << 103;
uint256 internal constant _ROLE_104 = 1 << 104;
uint256 internal constant _ROLE_105 = 1 << 105;
uint256 internal constant _ROLE_106 = 1 << 106;
uint256 internal constant _ROLE_107 = 1 << 107;
uint256 internal constant _ROLE_108 = 1 << 108;
uint256 internal constant _ROLE_109 = 1 << 109;
uint256 internal constant _ROLE_110 = 1 << 110;
uint256 internal constant _ROLE_111 = 1 << 111;
uint256 internal constant _ROLE_112 = 1 << 112;
uint256 internal constant _ROLE_113 = 1 << 113;
uint256 internal constant _ROLE_114 = 1 << 114;
uint256 internal constant _ROLE_115 = 1 << 115;
uint256 internal constant _ROLE_116 = 1 << 116;
uint256 internal constant _ROLE_117 = 1 << 117;
uint256 internal constant _ROLE_118 = 1 << 118;
uint256 internal constant _ROLE_119 = 1 << 119;
uint256 internal constant _ROLE_120 = 1 << 120;
uint256 internal constant _ROLE_121 = 1 << 121;
uint256 internal constant _ROLE_122 = 1 << 122;
uint256 internal constant _ROLE_123 = 1 << 123;
uint256 internal constant _ROLE_124 = 1 << 124;
uint256 internal constant _ROLE_125 = 1 << 125;
uint256 internal constant _ROLE_126 = 1 << 126;
uint256 internal constant _ROLE_127 = 1 << 127;
uint256 internal constant _ROLE_128 = 1 << 128;
uint256 internal constant _ROLE_129 = 1 << 129;
uint256 internal constant _ROLE_130 = 1 << 130;
uint256 internal constant _ROLE_131 = 1 << 131;
uint256 internal constant _ROLE_132 = 1 << 132;
uint256 internal constant _ROLE_133 = 1 << 133;
uint256 internal constant _ROLE_134 = 1 << 134;
uint256 internal constant _ROLE_135 = 1 << 135;
uint256 internal constant _ROLE_136 = 1 << 136;
uint256 internal constant _ROLE_137 = 1 << 137;
uint256 internal constant _ROLE_138 = 1 << 138;
uint256 internal constant _ROLE_139 = 1 << 139;
uint256 internal constant _ROLE_140 = 1 << 140;
uint256 internal constant _ROLE_141 = 1 << 141;
uint256 internal constant _ROLE_142 = 1 << 142;
uint256 internal constant _ROLE_143 = 1 << 143;
uint256 internal constant _ROLE_144 = 1 << 144;
uint256 internal constant _ROLE_145 = 1 << 145;
uint256 internal constant _ROLE_146 = 1 << 146;
uint256 internal constant _ROLE_147 = 1 << 147;
uint256 internal constant _ROLE_148 = 1 << 148;
uint256 internal constant _ROLE_149 = 1 << 149;
uint256 internal constant _ROLE_150 = 1 << 150;
uint256 internal constant _ROLE_151 = 1 << 151;
uint256 internal constant _ROLE_152 = 1 << 152;
uint256 internal constant _ROLE_153 = 1 << 153;
uint256 internal constant _ROLE_154 = 1 << 154;
uint256 internal constant _ROLE_155 = 1 << 155;
uint256 internal constant _ROLE_156 = 1 << 156;
uint256 internal constant _ROLE_157 = 1 << 157;
uint256 internal constant _ROLE_158 = 1 << 158;
uint256 internal constant _ROLE_159 = 1 << 159;
uint256 internal constant _ROLE_160 = 1 << 160;
uint256 internal constant _ROLE_161 = 1 << 161;
uint256 internal constant _ROLE_162 = 1 << 162;
uint256 internal constant _ROLE_163 = 1 << 163;
uint256 internal constant _ROLE_164 = 1 << 164;
uint256 internal constant _ROLE_165 = 1 << 165;
uint256 internal constant _ROLE_166 = 1 << 166;
uint256 internal constant _ROLE_167 = 1 << 167;
uint256 internal constant _ROLE_168 = 1 << 168;
uint256 internal constant _ROLE_169 = 1 << 169;
uint256 internal constant _ROLE_170 = 1 << 170;
uint256 internal constant _ROLE_171 = 1 << 171;
uint256 internal constant _ROLE_172 = 1 << 172;
uint256 internal constant _ROLE_173 = 1 << 173;
uint256 internal constant _ROLE_174 = 1 << 174;
uint256 internal constant _ROLE_175 = 1 << 175;
uint256 internal constant _ROLE_176 = 1 << 176;
uint256 internal constant _ROLE_177 = 1 << 177;
uint256 internal constant _ROLE_178 = 1 << 178;
uint256 internal constant _ROLE_179 = 1 << 179;
uint256 internal constant _ROLE_180 = 1 << 180;
uint256 internal constant _ROLE_181 = 1 << 181;
uint256 internal constant _ROLE_182 = 1 << 182;
uint256 internal constant _ROLE_183 = 1 << 183;
uint256 internal constant _ROLE_184 = 1 << 184;
uint256 internal constant _ROLE_185 = 1 << 185;
uint256 internal constant _ROLE_186 = 1 << 186;
uint256 internal constant _ROLE_187 = 1 << 187;
uint256 internal constant _ROLE_188 = 1 << 188;
uint256 internal constant _ROLE_189 = 1 << 189;
uint256 internal constant _ROLE_190 = 1 << 190;
uint256 internal constant _ROLE_191 = 1 << 191;
uint256 internal constant _ROLE_192 = 1 << 192;
uint256 internal constant _ROLE_193 = 1 << 193;
uint256 internal constant _ROLE_194 = 1 << 194;
uint256 internal constant _ROLE_195 = 1 << 195;
uint256 internal constant _ROLE_196 = 1 << 196;
uint256 internal constant _ROLE_197 = 1 << 197;
uint256 internal constant _ROLE_198 = 1 << 198;
uint256 internal constant _ROLE_199 = 1 << 199;
uint256 internal constant _ROLE_200 = 1 << 200;
uint256 internal constant _ROLE_201 = 1 << 201;
uint256 internal constant _ROLE_202 = 1 << 202;
uint256 internal constant _ROLE_203 = 1 << 203;
uint256 internal constant _ROLE_204 = 1 << 204;
uint256 internal constant _ROLE_205 = 1 << 205;
uint256 internal constant _ROLE_206 = 1 << 206;
uint256 internal constant _ROLE_207 = 1 << 207;
uint256 internal constant _ROLE_208 = 1 << 208;
uint256 internal constant _ROLE_209 = 1 << 209;
uint256 internal constant _ROLE_210 = 1 << 210;
uint256 internal constant _ROLE_211 = 1 << 211;
uint256 internal constant _ROLE_212 = 1 << 212;
uint256 internal constant _ROLE_213 = 1 << 213;
uint256 internal constant _ROLE_214 = 1 << 214;
uint256 internal constant _ROLE_215 = 1 << 215;
uint256 internal constant _ROLE_216 = 1 << 216;
uint256 internal constant _ROLE_217 = 1 << 217;
uint256 internal constant _ROLE_218 = 1 << 218;
uint256 internal constant _ROLE_219 = 1 << 219;
uint256 internal constant _ROLE_220 = 1 << 220;
uint256 internal constant _ROLE_221 = 1 << 221;
uint256 internal constant _ROLE_222 = 1 << 222;
uint256 internal constant _ROLE_223 = 1 << 223;
uint256 internal constant _ROLE_224 = 1 << 224;
uint256 internal constant _ROLE_225 = 1 << 225;
uint256 internal constant _ROLE_226 = 1 << 226;
uint256 internal constant _ROLE_227 = 1 << 227;
uint256 internal constant _ROLE_228 = 1 << 228;
uint256 internal constant _ROLE_229 = 1 << 229;
uint256 internal constant _ROLE_230 = 1 << 230;
uint256 internal constant _ROLE_231 = 1 << 231;
uint256 internal constant _ROLE_232 = 1 << 232;
uint256 internal constant _ROLE_233 = 1 << 233;
uint256 internal constant _ROLE_234 = 1 << 234;
uint256 internal constant _ROLE_235 = 1 << 235;
uint256 internal constant _ROLE_236 = 1 << 236;
uint256 internal constant _ROLE_237 = 1 << 237;
uint256 internal constant _ROLE_238 = 1 << 238;
uint256 internal constant _ROLE_239 = 1 << 239;
uint256 internal constant _ROLE_240 = 1 << 240;
uint256 internal constant _ROLE_241 = 1 << 241;
uint256 internal constant _ROLE_242 = 1 << 242;
uint256 internal constant _ROLE_243 = 1 << 243;
uint256 internal constant _ROLE_244 = 1 << 244;
uint256 internal constant _ROLE_245 = 1 << 245;
uint256 internal constant _ROLE_246 = 1 << 246;
uint256 internal constant _ROLE_247 = 1 << 247;
uint256 internal constant _ROLE_248 = 1 << 248;
uint256 internal constant _ROLE_249 = 1 << 249;
uint256 internal constant _ROLE_250 = 1 << 250;
uint256 internal constant _ROLE_251 = 1 << 251;
uint256 internal constant _ROLE_252 = 1 << 252;
uint256 internal constant _ROLE_253 = 1 << 253;
uint256 internal constant _ROLE_254 = 1 << 254;
uint256 internal constant _ROLE_255 = 1 << 255;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import {BT404} from "../bt404/BT404.sol";
abstract contract BitmapBT404 is BT404 {
function tokenURI(uint256 tokenId) public view override returns (string memory result) {
address mirror = mirrorERC721();
assembly ("memory-safe") {
result := mload(0x40)
mstore(0x00, 0xc87b56dd) // `tokenURI(uint256)`
mstore(0x20, tokenId)
if iszero(staticcall(gas(), mirror, 0x1c, 0x24, 0x00, 0x00)) {
returndatacopy(result, 0x00, returndatasize())
revert(result, returndatasize())
}
returndatacopy(0x00, 0x00, 0x20) // Copy the offset of the string in returndata.
returndatacopy(result, mload(0x00), 0x20) // Copy the length of the string.
returndatacopy(add(result, 0x20), add(mload(0x00), 0x20), mload(result)) // Copy the string.
mstore(0x40, add(add(result, 0x20), mload(result))) // Allocate memory.
}
}
/// @dev Mints `amount` tokens to `to`, increasing the total supply.
///
/// Will mint NFTs to `to` based on new tokens only (amount / _unit()).
/// The number of NFTs minted is strictly equal to amount / _unit().
/// This NFT minting is not affected by the skipNFT flag.
///
/// Note:
/// - NFTs will be minted with consecutive IDs starting from nextTokenId
/// - NFT minting is deterministic based on amount only
///
/// Emits a {Transfer} event.
function _mint(address to, uint256 amount) internal virtual {
require(to != address(0), TransferToZeroAddress());
BT404Storage storage $ = _getBT404Storage();
AddressData storage toAddressData = $.addressData[to];
_MintTemps memory t;
uint256 toIndex = toAddressData.ownedLength;
unchecked {
{
uint256 toBalance = uint256(toAddressData.balance) + amount;
toAddressData.balance = uint96(toBalance);
t.toEnd = toIndex + amount / _unit();
}
uint256 idLimit;
{
uint256 newTotalSupply = uint256($.totalSupply) + amount;
$.totalSupply = uint96(newTotalSupply);
uint256 overflows = _toUint(_totalSupplyOverflows(newTotalSupply));
require((overflows | _toUint(newTotalSupply < amount)) == 0, TotalSupplyOverflow());
idLimit = newTotalSupply / _unit();
}
// Always mint nft.
while (true) {
Uint32Map storage toOwned = $.owned[to];
Uint32Map storage oo = $.oo;
if ((t.numNFTMints = _zeroFloorSub(t.toEnd, toIndex)) == uint256(0)) break;
_PackedLogs memory packedLogs = _packedLogsMalloc(t.numNFTMints);
_packedLogsSet(packedLogs, to, 0);
$.totalNFTSupply += uint32(t.numNFTMints);
toAddressData.ownedLength = uint32(t.toEnd);
uint32 toAlias = _registerAndResolveAlias(toAddressData, to);
t.fromTokenId = $.nextTokenId;
t.toTokenId = t.fromTokenId;
do {
uint256 id = t.toTokenId++;
_set(toOwned, toIndex, uint32(id));
_setOwnerAliasAndOwnedIndex(oo, id, toAlias, uint32(toIndex++));
_packedLogsAppend(packedLogs, id);
} while (toIndex != t.toEnd);
require(t.toTokenId <= idLimit, TokenIdExceedsLimit());
$.nextTokenId = uint32(t.toTokenId);
_packedLogsSend(packedLogs, $.mirrorERC721);
break;
}
}
assembly ("memory-safe") {
// Emit the {Transfer} event.
mstore(0x00, amount)
log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, shl(96, to)))
}
if (t.numNFTMints > 0) {
_afterConsecutiveMints(to, t.fromTokenId, t.toTokenId - 1);
}
}
function _afterConsecutiveMints(address to, uint256 fromTokenId, uint256 toTokenId) internal {
address mirror = mirrorERC721();
assembly ("memory-safe") {
let m := mload(0x40)
mstore(0x00, 0x778e1229) // `afterMintBatch(address,uint256,uint256)`.
mstore(0x20, to)
mstore(0x40, fromTokenId)
mstore(0x60, toTokenId)
if iszero(
and(eq(mload(0x00), 1), call(gas(), mirror, callvalue(), 0x1c, 0x64, 0x00, 0x20))
) {
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
mstore(0x40, m) // Restore the free memory pointer.
mstore(0x60, 0) // Restore the zero pointer.
}
}
/// @dev Struct of temporary variables for mints.
struct _MintTemps {
uint256 toEnd;
uint256 numNFTMints;
uint256 fromTokenId;
uint256 toTokenId;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The caller is not authorized to call the function.
error Unauthorized();
/// @dev The `newOwner` cannot be the zero address.
error NewOwnerIsZeroAddress();
/// @dev The `pendingOwner` does not have a valid handover request.
error NoHandoverRequest();
/// @dev Cannot double-initialize.
error AlreadyInitialized();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The ownership is transferred from `oldOwner` to `newOwner`.
/// This event is intentionally kept the same as OpenZeppelin's Ownable to be
/// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
/// despite it not being as lightweight as a single argument event.
event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);
/// @dev An ownership handover to `pendingOwner` has been requested.
event OwnershipHandoverRequested(address indexed pendingOwner);
/// @dev The ownership handover to `pendingOwner` has been canceled.
event OwnershipHandoverCanceled(address indexed pendingOwner);
/// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;
/// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;
/// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The owner slot is given by:
/// `bytes32(~uint256(uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))))`.
/// It is intentionally chosen to be a high value
/// to avoid collision with lower slots.
/// The choice of manual storage layout is to enable compatibility
/// with both regular and upgradeable contracts.
bytes32 internal constant _OWNER_SLOT =
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff74873927;
/// The ownership handover slot of `newOwner` is given by:
/// ```
/// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
/// let handoverSlot := keccak256(0x00, 0x20)
/// ```
/// It stores the expiry timestamp of the two-step ownership handover.
uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Override to return true to make `_initializeOwner` prevent double-initialization.
function _guardInitializeOwner() internal pure virtual returns (bool guard) {}
/// @dev Initializes the owner directly without authorization guard.
/// This function must be called upon initialization,
/// regardless of whether the contract is upgradeable or not.
/// This is to enable generalization to both regular and upgradeable contracts,
/// and to save gas in case the initial owner is not the caller.
/// For performance reasons, this function will not check if there
/// is an existing owner.
function _initializeOwner(address newOwner) internal virtual {
if (_guardInitializeOwner()) {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
if sload(ownerSlot) {
mstore(0x00, 0x0dc149f0) // `AlreadyInitialized()`.
revert(0x1c, 0x04)
}
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Store the new value.
sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
}
} else {
/// @solidity memory-safe-assembly
assembly {
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Store the new value.
sstore(_OWNER_SLOT, newOwner)
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
}
}
}
/// @dev Sets the owner directly without authorization guard.
function _setOwner(address newOwner) internal virtual {
if (_guardInitializeOwner()) {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
// Store the new value.
sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
}
} else {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
// Store the new value.
sstore(ownerSlot, newOwner)
}
}
}
/// @dev Throws if the sender is not the owner.
function _checkOwner() internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// If the caller is not the stored owner, revert.
if iszero(eq(caller(), sload(_OWNER_SLOT))) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Returns how long a two-step ownership handover is valid for in seconds.
/// Override to return a different value if needed.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _ownershipHandoverValidFor() internal view virtual returns (uint64) {
return 48 * 3600;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC UPDATE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Allows the owner to transfer the ownership to `newOwner`.
function transferOwnership(address newOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
if iszero(shl(96, newOwner)) {
mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
revert(0x1c, 0x04)
}
}
_setOwner(newOwner);
}
/// @dev Allows the owner to renounce their ownership.
function renounceOwnership() public payable virtual onlyOwner {
_setOwner(address(0));
}
/// @dev Request a two-step ownership handover to the caller.
/// The request will automatically expire in 48 hours (172800 seconds) by default.
function requestOwnershipHandover() public payable virtual {
unchecked {
uint256 expires = block.timestamp + _ownershipHandoverValidFor();
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to `expires`.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), expires)
// Emit the {OwnershipHandoverRequested} event.
log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
}
}
}
/// @dev Cancels the two-step ownership handover to the caller, if any.
function cancelOwnershipHandover() public payable virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), 0)
// Emit the {OwnershipHandoverCanceled} event.
log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
}
}
/// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
/// Reverts if there is no existing ownership handover requested by `pendingOwner`.
function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
let handoverSlot := keccak256(0x0c, 0x20)
// If the handover does not exist, or has expired.
if gt(timestamp(), sload(handoverSlot)) {
mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
revert(0x1c, 0x04)
}
// Set the handover slot to 0.
sstore(handoverSlot, 0)
}
_setOwner(pendingOwner);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC READ FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the owner of the contract.
function owner() public view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
result := sload(_OWNER_SLOT)
}
}
/// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
function ownershipHandoverExpiresAt(address pendingOwner)
public
view
virtual
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
// Compute the handover slot.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
// Load the handover slot.
result := sload(keccak256(0x0c, 0x20))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MODIFIERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Marks a function as only callable by the owner.
modifier onlyOwner() virtual {
_checkOwner();
_;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import {LibBitmap} from "solady/utils/LibBitmap.sol";
import {SafeTransferLib} from "solady/utils/SafeTransferLib.sol";
/// @title BT404
/// @notice BT404 is a hybrid ERC20 and ERC721 implementation that mints
/// and burns NFTs based on an account's ERC20 token balance.
///
/// @author FlooringLab
/// @author Modified from DN404(https://github.com/Vectorized/dn404/src/DN404.sol)
///
/// @dev Note:
/// - The ERC721 data is stored in this base BT404 contract, however a
/// BT404Mirror contract ***MUST*** be deployed and linked during
/// initialization.
abstract contract BT404 {
using LibBitmap for LibBitmap.Bitmap;
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* EVENTS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Emitted when `amount` tokens is transferred from `from` to `to`.
event Transfer(address indexed from, address indexed to, uint256 amount);
/// @dev Emitted when `amount` tokens is approved by `owner` to be used by `spender`.
event Approval(address indexed owner, address indexed spender, uint256 amount);
/// @dev Emitted when `target` sets their skipNFT flag to `status`.
event SkipNFTSet(address indexed target, bool status);
/// @dev Emitted when `exchangeNFTFeeBips` is set.
event ExchangeMarketFeeSet(uint256 feeBips);
/// @dev Emitted when `listMarketFeeBips`
event ListMarketFeeSet(uint256 feeBips);
/// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
uint256 internal constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
/// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
uint256 internal constant _APPROVAL_EVENT_SIGNATURE =
0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;
/// @dev `keccak256(bytes("SkipNFTSet(address,bool)"))`.
uint256 internal constant _SKIP_NFT_SET_EVENT_SIGNATURE =
0xb5a1de456fff688115a4f75380060c23c8532d14ff85f687cc871456d6420393;
/// @dev `keccak256(bytes("ExchangeMarketFeeSet(uint256)"))`.
uint256 internal constant _EXCHANGE_MARKET_FEE_SET_EVENT_SIGNATURE =
0xe10129be59d54095da8caee0e01e0b82530bb6275510fbb843816dda3a5921d6;
/// @dev `keccak256(bytes("ListMarketFeeSet(uint256)"))`.
uint256 internal constant _LIST_MARKET_FEE_SET_EVENT_SIGNATURE =
0xdf10c155355452a496e5ffa2e30708bc26ccb58e654d0b145ec6056bce9af822;
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* CUSTOM ERRORS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Thrown when attempting to double-initialize the contract.
error DNAlreadyInitialized();
/// @dev Thrown when attempting to transfer or burn more tokens than sender's balance.
error InsufficientBalance();
/// @dev Thrown when a spender attempts to transfer tokens with an insufficient allowance.
error InsufficientAllowance();
/// @dev Thrown when minting an amount of tokens that would overflow the max tokens.
error TotalSupplyOverflow();
/// @dev The unit cannot be zero.
error InvalidUnit();
/// @dev Thrown when the caller for a fallback NFT function is not the mirror contract.
error SenderNotMirror();
/// @dev Thrown when attempting to transfer tokens to the zero address.
error TransferToZeroAddress();
/// @dev Thrown when the mirror address provided for initialization is the zero address.
error MirrorAddressIsZero();
/// @dev Thrown when the link call to the mirror contract reverts.
error LinkMirrorContractFailed();
/// @dev Thrown when setting an NFT token approval
/// and the caller is not the owner or an approved operator.
error ApprovalCallerNotOwnerNorApproved();
/// @dev Thrown when transferring an NFT
/// and the caller is not the owner or an approved operator.
error TransferCallerNotOwnerNorApproved();
/// @dev Thrown when transferring an NFT and the from address is not the current owner.
error TransferFromIncorrectOwner();
/// @dev Thrown when checking the owner or approved address for a non-existent NFT.
error TokenDoesNotExist();
/// @dev Thrown when attempting to mint a token whose ID exceeds the limit.
error TokenIdExceedsLimit();
/// @dev Thrown when exchanging the NFTs that locked.
error ExchangeTokenLocked();
/// @dev Thrown when attempting to lock the NFTs that locked,
/// or to unlock the NFTs that unlocked.
error TokenLockStatusNoChange();
/// @dev Thrown when transferring tokens but the balance is insufficient to to maintain locked NFTs.
error InsufficientBalanceToMaintainLockedTokens();
/// @dev Thrown when buy/sell with invalid price.
error InvalidSalePrice();
/// @dev Thrown when buy/sell with invalid token.
error InvalidOrderToken();
/// @dev Throw when NFT is not locked.
error TokenNotLocked();
/// @dev Throw when buy/sell but the address is not matched.
error InvalidSellerOrBuyer();
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* CONSTANTS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev The flag to denote that the address data is initialized.
uint8 internal constant _ADDRESS_DATA_INITIALIZED_FLAG = 1 << 0;
/// @dev The flag to denote that the address should skip NFTs.
uint8 internal constant _ADDRESS_DATA_SKIP_NFT_FLAG = 1 << 1;
/// @dev The alias of the burned pool which will be used in `oo` map.
/// It is the largest alias.
uint32 internal constant _ADDRESS_ALIAS_BURNED_POOL = type(uint32).max;
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* STORAGE */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Struct containing an address's token data and settings.
struct AddressData {
// Auxiliary data.
uint56 aux;
// Flags for `initialized` and `skipNFT`.
uint8 flags;
// The alias for the address. Zero means absence of an alias.
uint32 addressAlias;
// The number of NFT tokens locked.
uint32 lockedLength;
// The number of NFT tokens owned.
uint32 ownedLength;
// The token balance in wei.
uint96 balance;
// snapshot of `accFeePerNFT` when the account fee accrued
uint96 feePerNFTSnap;
}
/// @dev Struct represents the offer to sell an NFT.
struct NFTOffer {
uint32 seller;
uint32 sellTo;
uint96 minTokens;
address offerToken;
}
/// @dev Struct represents the bid to buy an NFT.
struct NFTBid {
uint96 tokens;
address bidToken;
}
/// @dev A uint32 map in storage.
struct Uint32Map {
mapping(uint256 => uint256) map;
}
/// @dev A struct to wrap a uint256 in storage.
struct Uint256Ref {
uint256 value;
}
/// @dev Struct containing the base token contract storage.
struct BT404Storage {
// Current number of address aliases assigned.
uint32 numAliases;
// Next NFT ID to assign for a mint.
uint32 nextTokenId;
// Total number of NFT IDs in the burned pool.
uint32 burnedPoolSize;
// Total supply of minted NFTs.
uint32 totalNFTSupply;
// Total supply of tokens.
uint96 totalSupply;
// Address of the NFT mirror contract.
address mirrorERC721;
// Mapping of a user alias number to their address.
mapping(uint32 => address) aliasToAddress;
// Mapping of user operator approvals for NFTs.
mapping(address => mapping(address => Uint256Ref)) operatorApprovals;
// Mapping of NFT approvals to approved operators.
mapping(uint256 => address) nftApprovals;
// Bitmap of whether an non-zero NFT approval may exist.
LibBitmap.Bitmap mayHaveNFTApproval;
// Mapping of user allowances for ERC20 spenders.
mapping(address => mapping(address => Uint256Ref)) allowance;
// Mapping of NFT IDs owned by an address.
mapping(address => Uint32Map) owned;
// Mapping of NFT token IDs locked by an address.
mapping(address => Uint32Map) locked;
// The pool of burned NFT IDs.
Uint32Map burnedPool;
// Even indices: owner aliases. Odd indices: owned indices.
// if NFT token was locked, owned indices are ref to `locked`, otherwise `owned`
Uint32Map oo;
// Mapping of user account AddressData.
mapping(address => AddressData) addressData;
// Mapping of NFT token to locked flag
LibBitmap.Bitmap tokenLocks;
// The number of NFT tokens locked globally.
uint32 numLockedNFT;
// The number of NFT tokens approved to `this` globally.
uint32 numExchangableNFT;
// Fee rate to charged per NFT when exchange unlocking NFTs
uint16 exchangeNFTFeeBips;
// accumulated fee per unlocked NFT should receive
uint96 accFeePerNFT;
// Slot gap.
uint80 __gap;
// Fee rate to charged per NFT when trading through market(bid/ask).
uint16 listMarketFeeBips;
// Mapping of NFT to sale offers.
mapping(uint256 => NFTOffer) offers;
// Mapping of NFT to buy bids.
// NFTId => bidder => Bid
mapping(uint256 => mapping(address => NFTBid)) bids;
// Mapping of token address to accounted fees.
mapping(address => Uint256Ref) accountedFees;
}
/// @dev Returns a storage pointer for BT404Storage.
function _getBT404Storage() internal pure virtual returns (BT404Storage storage $) {
/// @solidity memory-safe-assembly
assembly {
// `uint72(bytes9(keccak256("DN404_STORAGE")))`.
$.slot := 0xa20d6e21d0e5255308 // Truncate to 9 bytes to reduce bytecode size.
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* INITIALIZER */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Initializes the BT404 contract with an
/// `initialTokenSupply`, `initialTokenOwner` and `mirror` NFT contract address.
function _initializeBT404(
uint256 initialTokenSupply,
address initialSupplyOwner,
address mirror,
address deployer
) internal virtual {
BT404Storage storage $ = _getBT404Storage();
if ($.mirrorERC721 != address(0)) revert DNAlreadyInitialized();
if (mirror == address(0)) revert MirrorAddressIsZero();
/// @solidity memory-safe-assembly
assembly {
// Make the call to link the mirror contract.
mstore(0x00, 0x0f4599e5) // `linkMirrorContract(address)`.
mstore(0x20, deployer)
if iszero(and(eq(mload(0x00), 1), call(gas(), mirror, 0, 0x1c, 0x24, 0x00, 0x20))) {
mstore(0x00, 0xd125259c) // `LinkMirrorContractFailed()`.
revert(0x1c, 0x04)
}
}
$.mirrorERC721 = mirror;
if (_unit() < 10 ** decimals() || _unit() > 10 ** 24) revert InvalidUnit();
if (initialTokenSupply != 0) {
if (initialSupplyOwner == address(0)) {
revert TransferToZeroAddress();
}
if (_totalSupplyOverflows(initialTokenSupply)) {
revert TotalSupplyOverflow();
}
$.totalSupply = uint96(initialTokenSupply);
AddressData storage initialOwnerAddressData = _addressData(initialSupplyOwner);
initialOwnerAddressData.balance = uint96(initialTokenSupply);
/// @solidity memory-safe-assembly
assembly {
// Emit the {Transfer} event.
mstore(0x00, initialTokenSupply)
log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, shl(96, initialSupplyOwner)))
}
_setSkipNFT(initialSupplyOwner, true);
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* BASE UNIT FUNCTION TO OVERRIDE */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Amount of token balance that is equal to one NFT.
function _unit() internal view virtual returns (uint256) {
return 10 ** 18;
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* METADATA FUNCTIONS TO OVERRIDE */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the name of the token.
function name() public view virtual returns (string memory);
/// @dev Returns the symbol of the token.
function symbol() public view virtual returns (string memory);
/// @dev Returns the Uniform Resource Identifier (URI) for token `id`.
function tokenURI(uint256 id) public view virtual returns (string memory);
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* ERC20 OPERATIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the decimals places of the token. Always 18.
function decimals() public pure returns (uint8) {
return 18;
}
/// @dev Returns the amount of tokens in existence.
function totalSupply() public view virtual returns (uint256) {
return uint256(_getBT404Storage().totalSupply);
}
/// @dev Returns the amount of tokens owned by `owner`.
function balanceOf(address owner) public view virtual returns (uint256) {
return _getBT404Storage().addressData[owner].balance;
}
/// @dev Returns the amount of tokens that `spender` can spend on behalf of `owner`.
function allowance(address owner, address spender) public view returns (uint256) {
return _getBT404Storage().allowance[owner][spender].value;
}
/// @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
///
/// Emits a {Approval} event.
function approve(address spender, uint256 amount) public virtual returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
/// @dev Transfer `amount` tokens from the caller to `to`.
///
/// Will burn sender NFTs if balance after transfer is less than
/// the amount required to support the current NFT balance.
///
/// Will mint NFTs to `to` if the recipient's new balance supports
/// additional NFTs ***AND*** the `to` address's skipNFT flag is
/// set to false.
///
/// Requirements:
/// - `from` must at least have `amount`.
///
/// Emits a {Transfer} event.
function transfer(address to, uint256 amount) public virtual returns (bool) {
BT404Storage storage $ = _getBT404Storage();
_pullFeeForTwo($, msg.sender, to);
_transfer(msg.sender, to, amount);
return true;
}
/// @dev Transfers `amount` tokens from `from` to `to`.
///
/// Note: Does not update the allowance if it is the maximum uint256 value.
///
/// Will burn sender NFTs if balance after transfer is less than
/// the amount required to support the current NFT balance.
///
/// Will mint NFTs to `to` if the recipient's new balance supports
/// additional NFTs ***AND*** the `to` address's skipNFT flag is
/// set to false.
///
/// Requirements:
/// - `from` must at least have `amount`.
/// - The caller must have at least `amount` of allowance to transfer the tokens of `from`.
///
/// Emits a {Transfer} event.
function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
BT404Storage storage $ = _getBT404Storage();
Uint256Ref storage a = $.allowance[from][msg.sender];
uint256 allowed = a.value;
if (allowed != type(uint256).max) {
if (amount > allowed) revert InsufficientAllowance();
unchecked {
a.value = allowed - amount;
}
}
_pullFeeForTwo($, from, to);
_transfer(from, to, amount);
return true;
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* INTERNAL TRANSFER FUNCTIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Moves `amount` of tokens from `from` to `to`.
///
/// Will burn sender NFTs if balance after transfer is less than
/// the amount required to support the current NFT balance.
///
/// Will mint NFTs to `to` if the recipient's new balance supports
/// additional NFTs ***AND*** the `to` address's skipNFT flag is
/// set to false.
///
/// Emits a {Transfer} event.
function _transfer(address from, address to, uint256 amount) internal virtual {
if (to == address(0)) revert TransferToZeroAddress();
BT404Storage storage $ = _getBT404Storage();
AddressData storage fromAddressData = _addressData(from);
AddressData storage toAddressData = _addressData(to);
_TransferTemps memory t;
t.fromOwnedLength = fromAddressData.ownedLength;
t.toOwnedLength = toAddressData.ownedLength;
if (amount > (t.fromBalance = fromAddressData.balance)) {
revert InsufficientBalance();
}
unchecked {
t.fromBalance -= amount;
t.fromLockedLength = fromAddressData.lockedLength;
// need enough token to maintain locked NFTs
if (t.fromBalance < t.fromLockedLength * _unit()) {
revert InsufficientBalanceToMaintainLockedTokens();
}
fromAddressData.balance = uint96(t.fromBalance);
toAddressData.balance = uint96(t.toBalance = toAddressData.balance + amount);
t.numNFTBurns =
_zeroFloorSub(t.fromOwnedLength + t.fromLockedLength, t.fromBalance / _unit());
if (toAddressData.flags & _ADDRESS_DATA_SKIP_NFT_FLAG == 0) {
if (from == to) t.toOwnedLength = t.fromOwnedLength - t.numNFTBurns;
t.numNFTMints = _zeroFloorSub(
t.toBalance / _unit(),
t.toOwnedLength + toAddressData.lockedLength // balance needed for locked and owned
);
}
{
// cache `address(this)` approvals
mapping(address => Uint256Ref) storage thisOperatorApprovals =
$.operatorApprovals[address(this)];
// `from` burns NFTs
if (thisOperatorApprovals[from].value != 0) {
$.numExchangableNFT -= uint32(t.numNFTBurns);
}
// `to`mints NFTs
if (thisOperatorApprovals[to].value != 0) {
$.numExchangableNFT += uint32(t.numNFTMints);
}
}
$.totalNFTSupply = uint32(uint256($.totalNFTSupply) + t.numNFTMints - t.numNFTBurns);
Uint32Map storage oo = $.oo;
{
uint256 n = _min(t.numNFTBurns, t.numNFTMints);
if (n != 0) {
t.numNFTBurns -= n;
t.numNFTMints -= n;
if (from == to) {
t.toOwnedLength += n;
} else {
_DNDirectLogs memory directLogs = _directLogsMalloc(n, from, to);
Uint32Map storage fromOwned = $.owned[from];
Uint32Map storage toOwned = $.owned[to];
uint32 toAlias = _registerAndResolveAlias(toAddressData, to);
// Direct transfer loop.
do {
uint256 id = _get(fromOwned, --t.fromOwnedLength);
_set(toOwned, t.toOwnedLength, uint32(id));
_setOwnerAliasAndOwnedIndex(oo, id, toAlias, uint32(t.toOwnedLength++));
_removeNFTApproval($, id);
_directLogsAppend(directLogs, id);
} while (--n != 0);
_directLogsSend(directLogs, $.mirrorERC721);
fromAddressData.ownedLength = uint32(t.fromOwnedLength);
toAddressData.ownedLength = uint32(t.toOwnedLength);
}
}
}
_PackedLogs memory packedLogs = _packedLogsMalloc(t.numNFTBurns + t.numNFTMints);
uint256 burnedPoolSize = $.burnedPoolSize;
if (t.numNFTBurns != 0) {
_packedLogsSet(packedLogs, from, 1);
Uint32Map storage fromOwned = $.owned[from];
uint256 fromIndex = t.fromOwnedLength;
uint256 fromEnd = fromIndex - t.numNFTBurns;
fromAddressData.ownedLength = uint32(fromEnd);
// Burn loop.
do {
uint256 id = _get(fromOwned, --fromIndex);
_setOwnerAliasAndOwnedIndex(
oo, id, _ADDRESS_ALIAS_BURNED_POOL, uint32(burnedPoolSize)
);
_set($.burnedPool, burnedPoolSize++, uint32(id));
_removeNFTApproval($, id);
_packedLogsAppend(packedLogs, id);
} while (fromIndex != fromEnd);
}
if (t.numNFTMints != 0) {
_packedLogsSet(packedLogs, to, 0);
Uint32Map storage toOwned = $.owned[to];
uint256 toIndex = t.toOwnedLength;
uint256 toEnd = toIndex + t.numNFTMints;
t.toAlias = _registerAndResolveAlias(toAddressData, to);
toAddressData.ownedLength = uint32(toEnd);
// Mint loop.
do {
uint256 randomIndex = uint256(
keccak256(abi.encodePacked(block.prevrandao, msg.sender))
) % burnedPoolSize;
uint256 id = _get($.burnedPool, randomIndex);
if (randomIndex != (--burnedPoolSize)) {
_set($.burnedPool, randomIndex, _get($.burnedPool, burnedPoolSize));
}
_set(toOwned, toIndex, uint32(id));
_setOwnerAliasAndOwnedIndex(oo, id, t.toAlias, uint32(toIndex++));
_packedLogsAppend(packedLogs, id);
} while (toIndex != toEnd);
}
if (packedLogs.logs.length != 0) {
$.burnedPoolSize = uint32(burnedPoolSize);
_packedLogsSend(packedLogs, $.mirrorERC721);
}
/// @solidity memory-safe-assembly
assembly {
// Emit the {Transfer} event.
mstore(0x00, amount)
// forgefmt: disable-next-item
log3(
0x00,
0x20,
_TRANSFER_EVENT_SIGNATURE,
shr(96, shl(96, from)),
shr(96, shl(96, to))
)
}
}
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Call must originate from the mirror contract.
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// `msgSender` must be the owner of the token, or be approved to manage the token.
///
/// Emits a {Transfer} event.
function _transferFromNFT(address from, address to, uint256 id, address msgSender)
internal
virtual
{
if (to == address(0)) revert TransferToZeroAddress();
BT404Storage storage $ = _getBT404Storage();
Uint32Map storage oo = $.oo;
if (from != $.aliasToAddress[_get(oo, _ownershipIndex(id))]) {
revert TransferFromIncorrectOwner();
}
if (msgSender != from) {
if ($.operatorApprovals[msgSender][from].value == 0) {
if (msgSender != $.nftApprovals[id]) {
revert TransferCallerNotOwnerNorApproved();
}
}
}
AddressData storage fromAddressData = _addressData(from);
AddressData storage toAddressData = _addressData(to);
uint256 unit = _unit();
fromAddressData.balance -= uint96(unit);
unchecked {
toAddressData.balance += uint96(unit);
_removeNFTApproval($, id);
_clearNFTOffer($, id);
uint32 toTransferIdx = _get(oo, _ownedIndex(id));
if (LibBitmap.get($.tokenLocks, id)) {
// operate `locked` map
// delete transferred NFT
_delNFTAt($.locked[from], oo, toTransferIdx, --fromAddressData.lockedLength);
} else {
if ($.operatorApprovals[address(this)][from].value != 0) {
// The unlocked NFTs amount of account `from` will decrease, collecting fees first
_pullFeeForTwo($, from, from);
// `from` lock 1 NFT
--$.numExchangableNFT;
}
// operate `owned` map
// delete transferred NFT
_delNFTAt($.owned[from], oo, toTransferIdx, --fromAddressData.ownedLength);
// lock
LibBitmap.setTo($.tokenLocks, id, true);
++$.numLockedNFT;
}
// transfer ownership
// lock the NFT by default for ERC721 transfer
uint256 n = toAddressData.lockedLength++;
_set($.locked[to], n, uint32(id));
_setOwnerAliasAndOwnedIndex(
oo, id, _registerAndResolveAlias(toAddressData, to), uint32(n)
);
}
/// @solidity memory-safe-assembly
assembly {
// Emit the {Transfer} event.
mstore(0x00, unit)
// forgefmt: disable-next-item
log3(
0x00,
0x20,
_TRANSFER_EVENT_SIGNATURE,
shr(96, shl(96, from)),
shr(96, shl(96, to))
)
}
}
function _exchangeNFT(uint256 idX, uint256 idY, address msgSender)
internal
virtual
returns (address x, address y, uint256 exchangeFee)
{
BT404Storage storage $ = _getBT404Storage();
if (
_toUint(LibBitmap.get($.tokenLocks, idX)) | _toUint(LibBitmap.get($.tokenLocks, idY))
!= 0
) {
revert ExchangeTokenLocked();
}
x = _ownerOf(idX);
y = _ownerAt(idY);
// Only owner or spender can operate the token `idX`
if (msgSender != x) {
if ($.operatorApprovals[msgSender][x].value == 0) {
if (msgSender != $.nftApprovals[idX]) {
revert TransferCallerNotOwnerNorApproved();
}
}
}
Uint32Map storage oo = $.oo;
bool exchangeBurned = _get(oo, _ownershipIndex(idY)) == _ADDRESS_ALIAS_BURNED_POOL;
mapping(address => Uint256Ref) storage thisOperatorApprovals =
$.operatorApprovals[address(this)];
/// Only Burned or Approved NFT can be exchanged.
if (!exchangeBurned && thisOperatorApprovals[y].value == 0) {
revert ApprovalCallerNotOwnerNorApproved();
}
_removeNFTApproval($, idX);
if (!exchangeBurned) _removeNFTApproval($, idY);
// collecting fees for account `x` and `y` first
_pullFeeForTwo($, x, exchangeBurned ? x : y);
// Will be used to snapshot owned index of `idY`
uint256 yIndex;
// idY to account x, then lock
// must transfer `idY` firstly, otherwise the ownedIndex of `idX` is wrong
unchecked {
uint256 xIndex = _get(oo, _ownedIndex(idX));
AddressData storage xAddressData = _addressData(x);
// remove NFT `idX` from account `x`
_delNFTAt($.owned[x], oo, xIndex, --xAddressData.ownedLength);
yIndex = idX == idY ? xIndex : _get(oo, _ownedIndex(idY));
// append `idY` to `locked`
uint256 n = xAddressData.lockedLength++;
_set($.locked[x], n, uint32(idY));
_setOwnerAliasAndOwnedIndex(oo, idY, xAddressData.addressAlias, uint32(n));
// lock `idY`
LibBitmap.setTo($.tokenLocks, idY, true);
++$.numLockedNFT;
}
// idX to account y
if (idX != idY) {
uint32 yAlias =
exchangeBurned ? _ADDRESS_ALIAS_BURNED_POOL : _addressData(y).addressAlias;
_setOwnerAliasAndOwnedIndex(oo, idX, yAlias, uint32(yIndex));
Uint32Map storage ownedMap = exchangeBurned ? $.burnedPool : $.owned[y];
_set(ownedMap, yIndex, uint32(idX));
}
// transfer nft first, then token, otherwise specified NFT transfer may not success
// fee charges in percentage of the unit
exchangeFee = $.exchangeNFTFeeBips;
if (exchangeFee > 0) {
// Only refresh when the balance of `msgSender` will be changed.
if (msgSender != x) _pullFeeForTwo($, msgSender, msgSender);
unchecked {
exchangeFee *= _unit() / 10000;
_transfer(msgSender, address(this), exchangeFee);
uint256 num = $.numExchangableNFT;
// In case no one is seeding, users can also exchange the burned NFTs.
// These fees will not be tracked because:
// - The fees will be distributed to the seeding users, unless no one is interested in the profit.
if (num > 0) $.accFeePerNFT += uint96(exchangeFee / $.numExchangableNFT);
}
}
// If `msgSender` exchanged on behalf of `x`, `msgSender` receive the NFT.
if (msgSender != x) _transferFromNFT(x, msgSender, idY, x);
// x lock 1 NFT
if (!exchangeBurned && thisOperatorApprovals[x].value != 0) {
unchecked {
--$.numExchangableNFT;
}
}
}
function _pullFeeForTwo(BT404Storage storage $, address account1, address account2)
internal
virtual
{
// Cannot receive fee if `address(this)` has no operator approvals
mapping(address => Uint256Ref) storage thisOperatorApprovals =
$.operatorApprovals[address(this)];
uint256 accFeePerNFT;
uint256 accruedFee1;
if (thisOperatorApprovals[account1].value > 0) {
accFeePerNFT = $.accFeePerNFT;
AddressData storage addressData = $.addressData[account1];
// only unlocked NFTs receive fee
accruedFee1 = accFeePerNFT - addressData.feePerNFTSnap;
if (accruedFee1 > 0) addressData.feePerNFTSnap = uint96(accFeePerNFT);
accruedFee1 *= addressData.ownedLength;
}
if (account2 != account1) {
if (thisOperatorApprovals[account2].value > 0) {
if (accFeePerNFT == 0) {
accFeePerNFT = $.accFeePerNFT;
}
AddressData storage addressData = $.addressData[account2];
// only unlocked NFTs receive fee
uint256 accrued = (accFeePerNFT - addressData.feePerNFTSnap);
if (accrued > 0) addressData.feePerNFTSnap = uint96(accFeePerNFT);
accrued *= (addressData.ownedLength);
if (accrued > 0) {
_transfer(address(this), account2, accrued);
}
}
}
if (accruedFee1 > 0) {
_transfer(address(this), account1, accruedFee1);
}
}
/// @dev Internal function for minting new NFTs.
function _mintNFT(address, uint256[] memory, bool) internal virtual {
// implementation should be provided by inheriting contracts.
}
/// @dev Internal function for burning existing NFTs.
function _burnNFT(address, uint256[] memory) internal virtual {
// implementation should be provided by inheriting contracts.
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* INTERNAL APPROVE FUNCTIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Sets `amount` as the allowance of `spender` over the tokens of `owner`.
///
/// Emits a {Approval} event.
function _approve(address owner, address spender, uint256 amount) internal virtual {
Uint256Ref storage ref = _getBT404Storage().allowance[owner][spender];
if (amount > 0 && ref.value > 0) revert();
ref.value = amount;
/// @solidity memory-safe-assembly
assembly {
// Emit the {Approval} event.
mstore(0x00, amount)
// forgefmt: disable-next-item
log3(
0x00,
0x20,
_APPROVAL_EVENT_SIGNATURE,
shr(96, shl(96, owner)),
shr(96, shl(96, spender))
)
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* DATA HITCHHIKING FUNCTIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the auxiliary data for `owner`.
/// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
/// Auxiliary data can be set for any address, even if it does not have any tokens.
function _getAux(address owner) internal view virtual returns (uint56) {
return _getBT404Storage().addressData[owner].aux;
}
/// @dev Set the auxiliary data for `owner` to `value`.
/// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
/// Auxiliary data can be set for any address, even if it does not have any tokens.
function _setAux(address owner, uint56 value) internal virtual {
_getBT404Storage().addressData[owner].aux = value;
}
function _setExchangeNFTFeeRate(uint256 feeBips) internal virtual {
if (feeBips > 10000) revert();
_getBT404Storage().exchangeNFTFeeBips = uint16(feeBips);
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, feeBips)
log1(0x00, 0x20, _EXCHANGE_MARKET_FEE_SET_EVENT_SIGNATURE)
}
}
function _setListMarketFeeRate(uint256 feeBips) internal virtual {
if (feeBips > 10000) revert();
_getBT404Storage().listMarketFeeBips = uint16(feeBips);
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, feeBips)
log1(0x00, 0x20, _LIST_MARKET_FEE_SET_EVENT_SIGNATURE)
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* SKIP NFT FUNCTIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns true if minting and transferring ERC20s to `owner` will skip minting NFTs.
/// Returns false otherwise.
function getSkipNFT(address owner) public view virtual returns (bool) {
AddressData storage d = _getBT404Storage().addressData[owner];
if (d.flags & _ADDRESS_DATA_INITIALIZED_FLAG == 0) {
return true;
}
return d.flags & _ADDRESS_DATA_SKIP_NFT_FLAG != 0;
}
/// @dev Sets the caller's skipNFT flag to `skipNFT`. Returns true.
///
/// Emits a {SkipNFTSet} event.
function setSkipNFT(bool skipNFT) public virtual returns (bool) {
_setSkipNFT(msg.sender, skipNFT);
return true;
}
/// @dev Internal function to set account `owner` skipNFT flag to `state`
///
/// Initializes account `owner` AddressData if it is not currently initialized.
///
/// Emits a {SkipNFTSet} event.
function _setSkipNFT(address owner, bool state) internal virtual {
AddressData storage d = _addressData(owner);
if ((d.flags & _ADDRESS_DATA_SKIP_NFT_FLAG != 0) != state) {
d.flags ^= _ADDRESS_DATA_SKIP_NFT_FLAG;
}
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, iszero(iszero(state)))
log2(0x00, 0x20, _SKIP_NFT_SET_EVENT_SIGNATURE, shr(96, shl(96, owner)))
}
}
/// @dev Returns a storage data pointer for account `owner` AddressData
///
/// Initializes account `owner` AddressData if it is not currently initialized.
function _addressData(address owner) internal virtual returns (AddressData storage d) {
d = _getBT404Storage().addressData[owner];
unchecked {
if (d.flags & _ADDRESS_DATA_INITIALIZED_FLAG == 0) {
d.flags = uint8(_ADDRESS_DATA_SKIP_NFT_FLAG | _ADDRESS_DATA_INITIALIZED_FLAG);
}
}
}
/// @dev Returns the `addressAlias` of account `to`.
///
/// Assigns and registers the next alias if `to` alias was not previously registered.
function _registerAndResolveAlias(AddressData storage toAddressData, address to)
internal
virtual
returns (uint32 addressAlias)
{
addressAlias = toAddressData.addressAlias;
if (addressAlias == 0) {
BT404Storage storage $ = _getBT404Storage();
unchecked {
addressAlias = ++$.numAliases;
}
toAddressData.addressAlias = addressAlias;
$.aliasToAddress[addressAlias] = to;
if (addressAlias == _ADDRESS_ALIAS_BURNED_POOL) revert(); // Overflow.
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* MIRROR OPERATIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the address of the mirror NFT contract.
function mirrorERC721() public view virtual returns (address) {
return _getBT404Storage().mirrorERC721;
}
/// @dev Returns the total NFT supply.
function _totalNFTSupply() internal view virtual returns (uint256) {
return _getBT404Storage().totalNFTSupply;
}
/// @dev Returns `owner` NFT balance.
function _balanceOfNFT(address owner) internal view virtual returns (uint256) {
AddressData storage addressData = _getBT404Storage().addressData[owner];
unchecked {
return addressData.ownedLength + addressData.lockedLength;
}
}
/// @dev Returns the owner of token `id`.
/// Returns the zero address instead of reverting if the token does not exist.
function _ownerAt(uint256 id) internal view virtual returns (address) {
BT404Storage storage $ = _getBT404Storage();
return $.aliasToAddress[_get($.oo, _ownershipIndex(id))];
}
/// @dev Returns the owner of token `id`.
///
/// Requirements:
/// - Token `id` must exist.
function _ownerOf(uint256 id) internal view virtual returns (address) {
address owner = _ownerAt(id);
if (owner == address(0)) revert TokenDoesNotExist();
return owner;
}
/// @dev Returns if token `id` exists.
function _exists(uint256 id) internal view virtual returns (bool) {
return _ownerAt(id) != address(0);
}
/// @dev Returns the account approved to manage token `id`.
///
/// Requirements:
/// - Token `id` must exist.
function _getApproved(uint256 id) internal view virtual returns (address) {
if (!_exists(id)) revert TokenDoesNotExist();
return _getBT404Storage().nftApprovals[id];
}
/// @dev Sets `spender` as the approved account to manage token `id`, using `msgSender`.
///
/// Requirements:
/// - `msgSender` must be the owner or an approved operator for the token owner.
function _approveNFT(address spender, uint256 id, address msgSender)
internal
virtual
returns (address owner)
{
BT404Storage storage $ = _getBT404Storage();
owner = $.aliasToAddress[_get($.oo, _ownershipIndex(id))];
if (msgSender != owner) {
if ($.operatorApprovals[msgSender][owner].value == 0) {
revert ApprovalCallerNotOwnerNorApproved();
}
}
$.nftApprovals[id] = spender;
LibBitmap.setTo($.mayHaveNFTApproval, id, spender != address(0));
}
function _removeNFTApproval(BT404Storage storage $, uint256 id) internal virtual {
if (LibBitmap.get($.mayHaveNFTApproval, id)) {
LibBitmap.setTo($.mayHaveNFTApproval, id, false);
delete $.nftApprovals[id];
}
}
/// @dev Approve or remove the `operator` as an operator for `msgSender`,
/// without authorization checks.
function _setApprovalForAll(address operator, bool approved, address msgSender)
internal
virtual
{
BT404Storage storage $ = _getBT404Storage();
Uint256Ref storage ref = $.operatorApprovals[operator][msgSender];
if (operator == address(this)) {
bool status = ref.value != 0;
AddressData storage senderAddressData = $.addressData[msgSender];
if (_toUint(approved) & _toUint(!status) != 0) {
// initialize when approving
senderAddressData.feePerNFTSnap = $.accFeePerNFT;
unchecked {
$.numExchangableNFT += senderAddressData.ownedLength;
}
} else if (_toUint(!approved) & _toUint(status) != 0) {
// refresh when removing approval
_pullFeeForTwo($, msgSender, msgSender);
unchecked {
$.numExchangableNFT -= senderAddressData.ownedLength;
}
}
}
ref.value = _toUint(approved); // `approved ? 1 : 0`
}
/// @dev Lock or unlock the `id`,
/// `msgSener` should be authorized as the operator of the owner of the NFT
function _setNFTLockState(uint256[] memory ids, bool lock, address msgSender)
internal
virtual
{
BT404Storage storage $ = _getBT404Storage();
_pullFeeForTwo($, msgSender, msgSender);
Uint32Map storage oo = $.oo;
LibBitmap.Bitmap storage tokenLocks = $.tokenLocks;
AddressData storage ownerAddressData = _addressData(msgSender);
Uint32Map storage ownerLocked = $.locked[msgSender];
Uint32Map storage ownerOwned = $.owned[msgSender];
uint32 ownerAlias = _registerAndResolveAlias(ownerAddressData, msgSender);
uint256 idLen = ids.length;
unchecked {
for (uint256 i; i < idLen; ++i) {
uint256 id = ids[i];
if (_get(oo, _ownershipIndex(id)) != ownerAlias) {
revert ApprovalCallerNotOwnerNorApproved();
}
uint32 ownedIndex = _get(oo, _ownedIndex(id));
if (LibBitmap.get(tokenLocks, id) == lock) revert TokenLockStatusNoChange();
if (!lock) {
// already locked, to unlock
LibBitmap.setTo(tokenLocks, id, false);
// swap with last NFT and pop the last
_delNFTAt(ownerLocked, oo, ownedIndex, --ownerAddressData.lockedLength);
_clearNFTOffer($, id);
uint256 n = ownerAddressData.ownedLength++;
_set(ownerOwned, n, uint32(id));
_set(oo, _ownedIndex(id), uint32(n));
} else {
// not locked, to lock
LibBitmap.setTo(tokenLocks, id, true);
// swap with last NFT and pop the last
_delNFTAt(ownerOwned, oo, ownedIndex, --ownerAddressData.ownedLength);
uint256 n = ownerAddressData.lockedLength++;
_set(ownerLocked, n, uint32(id));
_set(oo, _ownedIndex(id), uint32(n));
}
}
}
unchecked {
if (lock) $.numLockedNFT += uint32(idLen);
else $.numLockedNFT -= uint32(idLen);
if ($.operatorApprovals[address(this)][msgSender].value != 0) {
if (lock) $.numExchangableNFT -= uint32(ids.length);
else $.numExchangableNFT += uint32(ids.length);
}
}
}
/// @dev Returns the NFT IDs of `owner` in range `[begin, end)`.
/// Optimized for smaller bytecode size, as this function is intended for off-chain calling.
function _ownedIds(address owner, uint256 begin, uint256 end, bool locked)
internal
view
virtual
returns (uint256[] memory ids)
{
BT404Storage storage $ = _getBT404Storage();
(Uint32Map storage owned, uint256 n) = locked
? ($.locked[owner], $.addressData[owner].lockedLength)
: ($.owned[owner], $.addressData[owner].ownedLength);
n = _min(n, end);
/// @solidity memory-safe-assembly
assembly {
// Allocate one more word to store the offset when returning with assembly.
ids := mload(0x40)
mstore(0x20, owned.slot)
let i := begin
for {} lt(i, n) { i := add(i, 1) } {
mstore(0x00, shr(3, i))
let s := keccak256(0x00, 0x40) // Storage slot.
let id := and(0xffffffff, shr(shl(5, and(i, 7)), sload(s)))
mstore(add(add(ids, 0x20), shl(5, sub(i, begin))), id) // Append to.
}
mstore(ids, sub(i, begin)) // Store the length.
mstore(0x40, add(add(ids, 0x20), shl(5, sub(i, begin)))) // Allocate memory.
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* NFT OFFER BID FUNCTIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
struct NFTOrder {
uint256 id;
uint256 tokenUnits;
address token;
// 1. `saleTo` in `offerForSale`.
// 2. `seller` in `acceptOffer`.
// 3. None in `bidForBuy`.
// 4. `bidder` in `acceptBid`.
address trader;
}
function _offerForSale(address msgSender, NFTOrder[] memory orders) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => NFTOffer) storage offers = $.offers;
uint32 senderAlias = _registerAndResolveAlias(_addressData(msgSender), msgSender);
for (uint256 i; i < orders.length;) {
uint256 id;
uint256 minTokenUnits;
address token;
address saleTo;
{
NFTOrder memory order = orders[i];
(id, minTokenUnits, token, saleTo) =
(order.id, order.tokenUnits, order.token, order.trader);
}
uint32 ownerAlias = _get($.oo, _ownershipIndex(id));
// Only the owner can make an offer because
// if the owner revokes approval after making an offer, the ownership will become incorrect.
if (senderAlias != ownerAlias) revert ApprovalCallerNotOwnerNorApproved();
// Only locked NFTs can be offered to sale.
if (!LibBitmap.get($.tokenLocks, id)) revert TokenNotLocked();
if (minTokenUnits == 0 || minTokenUnits > type(uint96).max) revert InvalidSalePrice();
offers[id] = NFTOffer({
seller: ownerAlias,
sellTo: saleTo == address(0)
? 0
: _registerAndResolveAlias($.addressData[saleTo], saleTo),
minTokens: uint96(minTokenUnits),
offerToken: token
});
unchecked {
++i;
}
}
}
function _acceptOffer(address msgSender, NFTOrder[] memory orders) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => NFTOffer) storage offers = $.offers;
uint32 senderAlias = _registerAndResolveAlias(_addressData(msgSender), msgSender);
uint256 nativeOfferTokens;
uint256 feeBips = $.listMarketFeeBips;
for (uint256 i; i < orders.length;) {
uint256 id;
uint256 tokenUnits;
address token;
address seller;
// Cache the variables.
{
NFTOrder memory order = orders[i];
(id, tokenUnits, token, seller) =
(order.id, order.tokenUnits, order.token, order.trader);
}
// Check parameters.
{
NFTOffer memory offer = offers[id];
// check if nft owner and seller are matched.
{
uint32 sellerAlias = offer.seller;
// 1. NFT isn't for sale.
// 2. Seller isn't the current NFT owner.
// 3. Seller isn't equal to the order trader.
if (
sellerAlias == 0 || sellerAlias != _get($.oo, _ownershipIndex(id))
|| sellerAlias != $.addressData[seller].addressAlias
) {
revert InvalidSellerOrBuyer();
}
}
uint32 sellToAlias = offer.sellTo;
// exclusive address was set but is not matched.
if (sellToAlias != 0 && sellToAlias != senderAlias) {
revert InvalidSellerOrBuyer();
}
if (offer.minTokens > tokenUnits) revert InvalidSalePrice();
if (!LibBitmap.get($.tokenLocks, id)) revert TokenNotLocked();
if (token != offer.offerToken) revert InvalidOrderToken();
}
{
uint256 fee = tokenUnits * feeBips / 10000;
// Sender receives the NFT.(The offer will be cleaned)
_transferFromNFT(seller, msgSender, id, seller);
// Seller receives the funds
_transferToken(token, msgSender, seller, tokenUnits - fee);
if (fee > 0) {
$.accountedFees[token].value += fee;
_transferToken(token, msgSender, address(this), fee);
}
if (token == address(0)) nativeOfferTokens += tokenUnits;
}
NFTBid memory bid = $.bids[id][msgSender];
if (bid.tokens > 0) {
delete $.bids[id][msgSender];
_transferToken(bid.bidToken, address(this), msgSender, bid.tokens);
}
unchecked {
++i;
}
}
if (nativeOfferTokens != msg.value) revert InvalidSalePrice();
}
function _cancelOffer(address msgSender, uint256[] memory ids) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => NFTOffer) storage offers = $.offers;
uint32 senderAlias = _registerAndResolveAlias(_addressData(msgSender), msgSender);
for (uint256 i; i < ids.length;) {
uint256 id = ids[i];
if (senderAlias != _get($.oo, _ownershipIndex(id))) {
revert InvalidSellerOrBuyer();
}
delete offers[id];
unchecked {
++i;
}
}
}
function _clearNFTOffer(BT404Storage storage $, uint256 id) internal {
// Clear exist offer if needed.
if ($.offers[id].seller != 0) delete $.offers[id];
}
function _bidForBuy(address msgSender, NFTOrder[] memory orders) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => mapping(address => NFTBid)) storage bids = $.bids;
uint32 senderAlias = _registerAndResolveAlias($.addressData[msgSender], msgSender);
uint256 nativeBidTokens;
for (uint256 i; i < orders.length;) {
uint256 id;
uint256 tokenUnits;
address token;
{
NFTOrder memory order = orders[i];
(id, tokenUnits, token) = (order.id, order.tokenUnits, order.token);
}
{
// Owner can't bid.
if (senderAlias == _get($.oo, _ownershipIndex(id))) revert InvalidSellerOrBuyer();
if (tokenUnits == 0 || tokenUnits > type(uint96).max) revert InvalidSalePrice();
}
{
NFTBid memory bid = bids[id][msgSender];
// Bidder can change his bid.
if (tokenUnits == bid.tokens && bid.bidToken == token) revert InvalidSalePrice();
// Update bid firstly.
bids[id][msgSender] = NFTBid({tokens: uint96(tokenUnits), bidToken: token});
// Refund exist bid.(Prevent Reentrancy externally)
_transferToken(bid.bidToken, address(this), msgSender, bid.tokens);
// Receive new bid funds.
_transferToken(token, msgSender, address(this), tokenUnits);
if (token == address(0)) nativeBidTokens += tokenUnits;
}
unchecked {
++i;
}
}
if (nativeBidTokens != msg.value) revert InvalidSalePrice();
}
function _acceptBid(address msgSender, NFTOrder[] memory orders) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => mapping(address => NFTBid)) storage bids = $.bids;
uint32 senderAlias = _registerAndResolveAlias(_addressData(msgSender), msgSender);
uint256 feeBips = $.listMarketFeeBips;
for (uint256 i; i < orders.length;) {
uint256 id;
uint256 tokenUnits;
address token;
address bidder;
{
NFTOrder memory order = orders[i];
(id, tokenUnits, token, bidder) =
(order.id, order.tokenUnits, order.token, order.trader);
}
{
// Only owner can sell.
if (senderAlias != _get($.oo, _ownershipIndex(id))) revert InvalidSellerOrBuyer();
NFTBid memory bid = bids[id][bidder];
if (tokenUnits == 0 || bid.tokens < tokenUnits) revert InvalidSalePrice();
if (token != bid.bidToken) revert InvalidOrderToken();
delete bids[id][bidder];
// Take full bid.
tokenUnits = bid.tokens;
}
// The exist offer will be cleaned inner.
_transferFromNFT(msgSender, bidder, id, msgSender);
uint256 fee = tokenUnits * feeBips / 10000;
_transferToken(token, address(this), msgSender, tokenUnits - fee);
if (fee > 0) $.accountedFees[token].value += fee;
unchecked {
++i;
}
}
}
function _cancelBid(address msgSender, uint256[] memory ids) internal {
BT404Storage storage $ = _getBT404Storage();
mapping(uint256 => mapping(address => NFTBid)) storage bids = $.bids;
for (uint256 i; i < ids.length;) {
uint256 id = ids[i];
NFTBid memory bid = bids[id][msgSender];
if (bid.tokens == 0) revert InvalidSellerOrBuyer();
delete bids[id][msgSender];
_transferToken(bid.bidToken, address(this), msgSender, bid.tokens);
unchecked {
++i;
}
}
}
function _transferToken(address token, address from, address to, uint256 amount) private {
if (token == address(0)) {
if (to != address(this)) {
SafeTransferLib.safeTransferETH(to, amount);
}
} else if (token == address(this)) {
_pullFeeForTwo(
_getBT404Storage(),
from == address(this) ? to : from,
to == address(this) ? from : to
);
_transfer(from, to, amount);
} else {
if (from == address(this)) {
SafeTransferLib.safeTransfer(token, to, amount);
} else {
SafeTransferLib.safeTransferFrom(token, from, to, amount);
}
}
}
/// @dev Fallback modifier to dispatch calls from the mirror NFT contract
/// to internal functions in this contract.
modifier bt404Fallback() virtual {
BT404Storage storage $ = _getBT404Storage();
uint256 fnSelector = _calldataload(0x00) >> 224;
// `transferFromNFT(address,address,uint256,address)`.
if (fnSelector == 0xe5eb36c8) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_transferFromNFT(
address(uint160(_calldataload(0x04))), // `from`.
address(uint160(_calldataload(0x24))), // `to`.
_calldataload(0x44), // `id`.
address(uint160(_calldataload(0x64))) // `msgSender`.
);
_return(1);
}
// `setApprovalForAll(address,bool,address)`.
if (fnSelector == 0x813500fc) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_setApprovalForAll(
address(uint160(_calldataload(0x04))), // `spender`.
_calldataload(0x24) != 0, // `status`.
address(uint160(_calldataload(0x44))) // `msgSender`.
);
_return(1);
}
// `exchangeNFT(uint256,uint256,address)`.
if (fnSelector == 0x2c5966af) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
(address x, address y, uint256 fee) = _exchangeNFT(
_calldataload(0x04), // `idX`
_calldataload(0x24), // `idY`
address(uint160(_calldataload(0x44))) // `msgSender`
);
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, x)
mstore(0x20, y)
mstore(0x40, fee)
return(0x00, 0x60)
}
}
// `setNFTLockState(uint256,uint256[])`.
if (fnSelector == 0xb79cc1bd) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
uint256 senderAndLockFlag = _calldataload(0x04);
_setNFTLockState(
_calldatacopyArray(_calldataload(0x24) + 0x04), // `ids`
uint8(senderAndLockFlag) != 0, // `lock`
address(uint160(senderAndLockFlag >> 96)) // `msgSender`
);
_return(1);
}
// `mintNFT(uint256,uint256[])`
if (fnSelector == 0x3e0446a1) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
uint256 senderAndLockFlag = _calldataload(0x04);
_mintNFT(
address(uint160(senderAndLockFlag >> 96)), // `to`
_calldatacopyArray(_calldataload(0x24) + 0x04), // `ids`
uint8(senderAndLockFlag) != 0 // `lock`
);
_return(1);
}
// `burnNFT(address,uint256[])`
if (fnSelector == 0x86529a61) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_burnNFT(
address(uint160(_calldataload(0x04))), // `from`
_calldatacopyArray(_calldataload(0x24) + 0x04) // `ids`
);
_return(1);
}
// `offerForSale(address,(uint256,uint256,address,address)[])`
if (fnSelector == 0x73e63d89) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_offerForSale(
address(uint160(_calldataload(0x04))),
_calldatacopyOrders(_calldataload(0x24) + 0x04)
);
_return(1);
}
// `acceptOffer(address,(uint256,uint256,address,address)[])`
if (fnSelector == 0x53ffa071) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_acceptOffer(
address(uint160(_calldataload(0x04))),
_calldatacopyOrders(_calldataload(0x24) + 0x04)
);
_return(1);
}
// `cancelOffer(address,uint256[])`
if (fnSelector == 0x2da2a859) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_cancelOffer(
address(uint160(_calldataload(0x04))), // `from`
_calldatacopyArray(_calldataload(0x24) + 0x04) // `ids`
);
_return(1);
}
// `bidForBuy(address,(uint256,uint256,address,address)[])`
if (fnSelector == 0xb5a1305b) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_bidForBuy(
address(uint160(_calldataload(0x04))),
_calldatacopyOrders(_calldataload(0x24) + 0x04)
);
_return(1);
}
// `acceptBid(address,(uint256,uint256,address,address)[])`
if (fnSelector == 0xb6ebe103) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_acceptBid(
address(uint160(_calldataload(0x04))),
_calldatacopyOrders(_calldataload(0x24) + 0x04)
);
_return(1);
}
// `cancelBid(address,uint256[])`
if (fnSelector == 0xa38beee1) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
_cancelBid(
address(uint160(_calldataload(0x04))), // `from`
_calldatacopyArray(_calldataload(0x24) + 0x04) // `ids`
);
_return(1);
}
// `isApprovedForAll(address,address)`.
if (fnSelector == 0xe985e9c5) {
address owner = address(uint160(_calldataload(0x04)));
address spender = address(uint160(_calldataload(0x24)));
Uint256Ref storage ref = $.operatorApprovals[spender][owner];
_return(ref.value);
}
// `ownerOf(uint256)`.
if (fnSelector == 0x6352211e) {
_return(uint160(_ownerOf(_calldataload(0x04))));
}
// `ownerAt(uint256)`.
if (fnSelector == 0x24359879) {
_return(uint160(_ownerAt(_calldataload(0x04))));
}
// `approveNFT(address,uint256,address)`.
if (fnSelector == 0xd10b6e0c) {
if (msg.sender != $.mirrorERC721) revert SenderNotMirror();
address owner = _approveNFT(
address(uint160(_calldataload(0x04))), // `spender`.
_calldataload(0x24), // `id`.
address(uint160(_calldataload(0x44))) // `msgSender`.
);
_return(uint160(owner));
}
// `ownedIds(uint256,uint256,uint256)`.
if (fnSelector == 0xf9b4b328) {
uint256 addrAndFlag = _calldataload(0x04);
/// @solidity memory-safe-assembly
assembly {
// Allocate one word to store the offset of the array in returndata.
mstore(0x40, add(mload(0x40), 0x20))
}
uint256[] memory ids = _ownedIds(
address(uint160(addrAndFlag >> 96)),
_calldataload(0x24),
_calldataload(0x44),
uint8(addrAndFlag) != 0
);
/// @solidity memory-safe-assembly
assembly {
// Memory safe, as we've advanced the free memory pointer by a word.
let p := sub(ids, 0x20)
mstore(p, 0x20) // Store the offset of the array in returndata.
return(p, add(0x40, shl(5, mload(ids))))
}
}
// `getApproved(uint256)`.
if (fnSelector == 0x081812fc) {
_return(uint160(_getApproved(_calldataload(0x04))));
}
// `balanceOfNFT(address)`.
if (fnSelector == 0xf5b100ea) {
_return(_balanceOfNFT(address(uint160(_calldataload(0x04)))));
}
// `totalNFTSupply()`.
if (fnSelector == 0xe2c79281) {
_return(_totalNFTSupply());
}
// `implementsBT404()`, `implementsDN404()`.
if (fnSelector == 0xc89e2ab1 || fnSelector == 0xb7a94eb8) {
_return(1);
}
_;
}
/// @dev Fallback function for calls from mirror NFT contract.
fallback() external payable virtual bt404Fallback {}
receive() external payable virtual {}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* INTERNAL / PRIVATE HELPERS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns `i << 1`.
function _ownershipIndex(uint256 i) internal pure returns (uint256) {
unchecked {
return i << 1;
}
}
/// @dev Returns `(i << 1) + 1`.
function _ownedIndex(uint256 i) internal pure returns (uint256) {
unchecked {
return (i << 1) + 1;
}
}
function _delNFTAt(
Uint32Map storage owned,
Uint32Map storage oo,
uint256 toDelIndex,
uint256 lastIndex
) internal {
if (toDelIndex != lastIndex) {
uint256 updatedId = _get(owned, lastIndex);
_set(owned, toDelIndex, uint32(updatedId));
_set(oo, _ownedIndex(updatedId), uint32(toDelIndex));
}
}
/// @dev Returns whether `amount` is a valid `totalSupply`.
function _totalSupplyOverflows(uint256 amount) internal view returns (bool result) {
uint256 unit = _unit();
/// @solidity memory-safe-assembly
assembly {
result := iszero(iszero(or(shr(96, amount), lt(0xfffffffe, div(amount, unit)))))
}
}
/// @dev Struct containing direct transfer log data for {Transfer} events to be
/// emitted by the mirror NFT contract.
struct _DNDirectLogs {
uint256 offset;
address from;
address to;
uint256[] logs;
}
/// @dev Initiates memory allocation for direct logs with `n` log items.
function _directLogsMalloc(uint256 n, address from, address to)
private
pure
returns (_DNDirectLogs memory p)
{
/// @solidity memory-safe-assembly
assembly {
// Note that `p` implicitly allocates and advances the free memory pointer by
// 4 words, which we can safely mutate in `_packedLogsSend`.
let logs := mload(0x40)
mstore(logs, n) // Store the length.
let offset := add(0x20, logs) // Skip the word for `p.logs.length`.
mstore(0x40, add(offset, shl(5, n))) // Allocate memory.
mstore(add(0x60, p), logs) // Set `p.logs`.
mstore(add(0x40, p), shr(96, shl(96, to))) // Set `p.to`.
mstore(add(0x20, p), shr(96, shl(96, from))) // Set `p.from`.
mstore(p, offset) // Set `p.offset`.
}
}
/// @dev Adds a direct log item to `p` with token `id`.
function _directLogsAppend(_DNDirectLogs memory p, uint256 id) private pure {
/// @solidity memory-safe-assembly
assembly {
let offset := mload(p)
mstore(offset, id)
mstore(p, add(offset, 0x20))
}
}
/// @dev Calls the `mirror` NFT contract to emit {Transfer} events for packed logs `p`.
function _directLogsSend(_DNDirectLogs memory p, address mirror) private {
/// @solidity memory-safe-assembly
assembly {
let logs := mload(add(p, 0x60))
let n := add(0x84, shl(5, mload(logs))) // Length of calldata to send.
let o := sub(logs, 0x80) // Start of calldata to send.
mstore(o, 0x144027d3) // `logDirectTransfer(address,address,uint256[])`.
mstore(add(o, 0x20), mload(add(0x20, p)))
mstore(add(o, 0x40), mload(add(0x40, p)))
mstore(add(o, 0x60), 0x60) // Offset of `logs` in the calldata to send.
if iszero(and(eq(mload(o), 1), call(gas(), mirror, 0, add(o, 0x1c), n, o, 0x20))) {
revert(o, 0x00)
}
}
}
/// emitted by the mirror NFT contract.
struct _PackedLogs {
uint256 offset;
uint256 addressAndBit;
uint256[] logs;
}
/// @dev Initiates memory allocation for packed logs with `n` log items.
function _packedLogsMalloc(uint256 n) internal pure returns (_PackedLogs memory p) {
/// @solidity memory-safe-assembly
assembly {
// Note that `p` implicitly allocates and advances the free memory pointer by
// 2 words, which we can safely mutate in `_packedLogsSend`.
let logs := mload(0x40)
mstore(logs, n) // Store the length.
let offset := add(0x20, logs)
mstore(0x40, add(offset, shl(5, n))) // Allocate memory.
mstore(add(0x40, p), logs) // Set `p.logs`.
mstore(p, offset) // Set `p.offset`.
}
}
/// @dev Set the current address and the burn bit.
function _packedLogsSet(_PackedLogs memory p, address a, uint256 burnBit) internal pure {
/// @solidity memory-safe-assembly
assembly {
mstore(add(p, 0x20), or(shl(96, a), burnBit))
}
}
/// @dev Adds a packed log item to `p` with token `id`.
function _packedLogsAppend(_PackedLogs memory p, uint256 id) internal pure {
/// @solidity memory-safe-assembly
assembly {
let offset := mload(p)
mstore(offset, or(mload(add(p, 0x20)), shl(8, id)))
mstore(p, add(offset, 0x20))
}
}
function _packedLogsSend(_PackedLogs memory p, address mirror) internal {
/// @solidity memory-safe-assembly
assembly {
let logs := mload(add(p, 0x40))
let o := sub(logs, 0x40) // Start of calldata to send.
mstore(o, 0x263c69d6) // `logTransfer(uint256[])`.
mstore(add(o, 0x20), 0x20) // Offset of `logs` in the calldata to send.
let n := add(0x44, shl(5, mload(logs))) // Length of calldata to send.
if iszero(and(eq(mload(o), 1), call(gas(), mirror, 0, add(o, 0x1c), n, o, 0x20))) {
revert(o, 0x00)
}
}
}
/// @dev Struct of temporary variables for transfers.
struct _TransferTemps {
uint256 numNFTBurns;
uint256 numNFTMints;
uint256 fromBalance;
uint256 toBalance;
uint256 fromOwnedLength;
uint256 toOwnedLength;
uint256 totalSupply;
uint256 fromLockedLength;
uint256 toLockedLength;
uint256 maxNFTId;
uint32 toAlias;
}
/// @dev Returns the calldata value at `offset`.
function _calldataload(uint256 offset) internal pure returns (uint256 value) {
/// @solidity memory-safe-assembly
assembly {
value := calldataload(offset)
}
}
function _calldatacopyArray(uint256 offset) private pure returns (uint256[] memory value) {
/// @solidity memory-safe-assembly
assembly {
let length := calldataload(offset)
value := mload(0x40)
mstore(0x40, add(add(value, 0x20), shl(5, length))) // Allocate memory.
mstore(value, length) // Store array length
calldatacopy(add(value, 0x20), add(offset, 0x20), shl(5, length)) // Copy array elements
}
}
function _calldatacopyOrders(uint256 offset) private pure returns (NFTOrder[] memory orders) {
// For array of `NFTOrder`, the layoutes between `calldata` and `memory` are different.
// In memory, it contains the elements offset.
uint256 length;
/// @solidity memory-safe-assembly
assembly {
length := calldataload(offset)
offset := add(offset, 0x20) // Skip length.
}
orders = new NFTOrder[](length);
for (uint256 i; i < length;) {
NFTOrder memory tmp;
// @solidity memory-safe-assembly
assembly {
calldatacopy(tmp, offset, 0x80) // Copy array element
offset := add(offset, 0x80)
mstore(add(tmp, 0x40), shr(96, shl(96, mload(add(tmp, 0x40)))))
mstore(add(tmp, 0x60), shr(96, shl(96, mload(add(tmp, 0x60)))))
}
orders[i] = tmp;
unchecked {
++i;
}
}
}
/// @dev Executes a return opcode to return `x` and end the current call frame.
function _return(uint256 x) internal pure {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, x)
return(0x00, 0x20)
}
}
/// @dev Returns `max(0, x - y)`.
function _zeroFloorSub(uint256 x, uint256 y) internal pure returns (uint256 z) {
/// @solidity memory-safe-assembly
assembly {
z := mul(gt(x, y), sub(x, y))
}
}
/// @dev Returns `x < y ? x : y`.
function _min(uint256 x, uint256 y) internal pure returns (uint256 z) {
/// @solidity memory-safe-assembly
assembly {
z := xor(x, mul(xor(x, y), lt(y, x)))
}
}
/// @dev Returns `b ? 1 : 0`.
function _toUint(bool b) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
result := iszero(iszero(b))
}
}
/// @dev Returns the uint32 value at `index` in `map`.
function _get(Uint32Map storage map, uint256 index) internal view returns (uint32 result) {
result = uint32(map.map[index >> 3] >> ((index & 7) << 5));
}
/// @dev Updates the uint32 value at `index` in `map`.
function _set(Uint32Map storage map, uint256 index, uint32 value) internal {
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, map.slot)
mstore(0x00, shr(3, index))
let s := keccak256(0x00, 0x40) // Storage slot.
let o := shl(5, and(index, 7)) // Storage slot offset (bits).
let v := sload(s) // Storage slot value.
let m := 0xffffffff // Value mask.
sstore(s, xor(v, shl(o, and(m, xor(shr(o, v), value)))))
}
}
/// @dev Sets the owner alias and the owned index together.
function _setOwnerAliasAndOwnedIndex(
Uint32Map storage map,
uint256 id,
uint32 ownership,
uint32 ownedIndex
) internal {
/// @solidity memory-safe-assembly
assembly {
let value := or(shl(32, ownedIndex), and(0xffffffff, ownership))
mstore(0x20, map.slot)
mstore(0x00, shr(2, id))
let s := keccak256(0x00, 0x40) // Storage slot.
let o := shl(6, and(id, 3)) // Storage slot offset (bits).
let v := sload(s) // Storage slot value.
let m := 0xffffffffffffffff // Value mask.
sstore(s, xor(v, shl(o, and(m, xor(shr(o, v), value)))))
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import {LibBit} from "./LibBit.sol";
/// @notice Library for storage of packed unsigned booleans.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibBitmap.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/LibBitmap.sol)
/// @author Modified from Solidity-Bits (https://github.com/estarriolvetch/solidity-bits/blob/main/contracts/BitMaps.sol)
library LibBitmap {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The constant returned when a bitmap scan does not find a result.
uint256 internal constant NOT_FOUND = type(uint256).max;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STRUCTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev A bitmap in storage.
struct Bitmap {
mapping(uint256 => uint256) map;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the boolean value of the bit at `index` in `bitmap`.
function get(Bitmap storage bitmap, uint256 index) internal view returns (bool isSet) {
// It is better to set `isSet` to either 0 or 1, than zero vs non-zero.
// Both cost the same amount of gas, but the former allows the returned value
// to be reused without cleaning the upper bits.
uint256 b = (bitmap.map[index >> 8] >> (index & 0xff)) & 1;
/// @solidity memory-safe-assembly
assembly {
isSet := b
}
}
/// @dev Updates the bit at `index` in `bitmap` to true.
function set(Bitmap storage bitmap, uint256 index) internal {
bitmap.map[index >> 8] |= (1 << (index & 0xff));
}
/// @dev Updates the bit at `index` in `bitmap` to false.
function unset(Bitmap storage bitmap, uint256 index) internal {
bitmap.map[index >> 8] &= ~(1 << (index & 0xff));
}
/// @dev Flips the bit at `index` in `bitmap`.
/// Returns the boolean result of the flipped bit.
function toggle(Bitmap storage bitmap, uint256 index) internal returns (bool newIsSet) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, bitmap.slot)
mstore(0x00, shr(8, index))
let storageSlot := keccak256(0x00, 0x40)
let shift := and(index, 0xff)
let storageValue := xor(sload(storageSlot), shl(shift, 1))
// It makes sense to return the `newIsSet`,
// as it allow us to skip an additional warm `sload`,
// and it costs minimal gas (about 15),
// which may be optimized away if the returned value is unused.
newIsSet := and(1, shr(shift, storageValue))
sstore(storageSlot, storageValue)
}
}
/// @dev Updates the bit at `index` in `bitmap` to `shouldSet`.
function setTo(Bitmap storage bitmap, uint256 index, bool shouldSet) internal {
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, bitmap.slot)
mstore(0x00, shr(8, index))
let storageSlot := keccak256(0x00, 0x40)
let storageValue := sload(storageSlot)
let shift := and(index, 0xff)
sstore(
storageSlot,
// Unsets the bit at `shift` via `and`, then sets its new value via `or`.
or(and(storageValue, not(shl(shift, 1))), shl(shift, iszero(iszero(shouldSet))))
)
}
}
/// @dev Consecutively sets `amount` of bits starting from the bit at `start`.
function setBatch(Bitmap storage bitmap, uint256 start, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
let max := not(0)
let shift := and(start, 0xff)
mstore(0x20, bitmap.slot)
mstore(0x00, shr(8, start))
if iszero(lt(add(shift, amount), 257)) {
let storageSlot := keccak256(0x00, 0x40)
sstore(storageSlot, or(sload(storageSlot), shl(shift, max)))
let bucket := add(mload(0x00), 1)
let bucketEnd := add(mload(0x00), shr(8, add(amount, shift)))
amount := and(add(amount, shift), 0xff)
shift := 0
for {} iszero(eq(bucket, bucketEnd)) { bucket := add(bucket, 1) } {
mstore(0x00, bucket)
sstore(keccak256(0x00, 0x40), max)
}
mstore(0x00, bucket)
}
let storageSlot := keccak256(0x00, 0x40)
sstore(storageSlot, or(sload(storageSlot), shl(shift, shr(sub(256, amount), max))))
}
}
/// @dev Consecutively unsets `amount` of bits starting from the bit at `start`.
function unsetBatch(Bitmap storage bitmap, uint256 start, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
let shift := and(start, 0xff)
mstore(0x20, bitmap.slot)
mstore(0x00, shr(8, start))
if iszero(lt(add(shift, amount), 257)) {
let storageSlot := keccak256(0x00, 0x40)
sstore(storageSlot, and(sload(storageSlot), not(shl(shift, not(0)))))
let bucket := add(mload(0x00), 1)
let bucketEnd := add(mload(0x00), shr(8, add(amount, shift)))
amount := and(add(amount, shift), 0xff)
shift := 0
for {} iszero(eq(bucket, bucketEnd)) { bucket := add(bucket, 1) } {
mstore(0x00, bucket)
sstore(keccak256(0x00, 0x40), 0)
}
mstore(0x00, bucket)
}
let storageSlot := keccak256(0x00, 0x40)
sstore(
storageSlot, and(sload(storageSlot), not(shl(shift, shr(sub(256, amount), not(0)))))
)
}
}
/// @dev Returns number of set bits within a range by
/// scanning `amount` of bits starting from the bit at `start`.
function popCount(Bitmap storage bitmap, uint256 start, uint256 amount)
internal
view
returns (uint256 count)
{
unchecked {
uint256 bucket = start >> 8;
uint256 shift = start & 0xff;
if (!(amount + shift < 257)) {
count = LibBit.popCount(bitmap.map[bucket] >> shift);
uint256 bucketEnd = bucket + ((amount + shift) >> 8);
amount = (amount + shift) & 0xff;
shift = 0;
for (++bucket; bucket != bucketEnd; ++bucket) {
count += LibBit.popCount(bitmap.map[bucket]);
}
}
count += LibBit.popCount((bitmap.map[bucket] >> shift) << (256 - amount));
}
}
/// @dev Returns the index of the most significant set bit in `[0..upTo]`.
/// If no set bit is found, returns `NOT_FOUND`.
function findLastSet(Bitmap storage bitmap, uint256 upTo)
internal
view
returns (uint256 setBitIndex)
{
setBitIndex = NOT_FOUND;
uint256 bucket = upTo >> 8;
uint256 bits;
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, bucket)
mstore(0x20, bitmap.slot)
let offset := and(0xff, not(upTo)) // `256 - (255 & upTo) - 1`.
bits := shr(offset, shl(offset, sload(keccak256(0x00, 0x40))))
if iszero(or(bits, iszero(bucket))) {
for {} 1 {} {
bucket := add(bucket, setBitIndex) // `sub(bucket, 1)`.
mstore(0x00, bucket)
bits := sload(keccak256(0x00, 0x40))
if or(bits, iszero(bucket)) { break }
}
}
}
if (bits != 0) {
setBitIndex = (bucket << 8) | LibBit.fls(bits);
/// @solidity memory-safe-assembly
assembly {
setBitIndex := or(setBitIndex, sub(0, gt(setBitIndex, upTo)))
}
}
}
/// @dev Returns the index of the least significant unset bit in `[begin..upTo]`.
/// If no unset bit is found, returns `NOT_FOUND`.
function findFirstUnset(Bitmap storage bitmap, uint256 begin, uint256 upTo)
internal
view
returns (uint256 unsetBitIndex)
{
unsetBitIndex = NOT_FOUND;
uint256 bucket = begin >> 8;
uint256 negBits;
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, bucket)
mstore(0x20, bitmap.slot)
let offset := and(0xff, begin)
negBits := shl(offset, shr(offset, not(sload(keccak256(0x00, 0x40)))))
if iszero(negBits) {
let lastBucket := shr(8, upTo)
for {} 1 {} {
bucket := add(bucket, 1)
mstore(0x00, bucket)
negBits := not(sload(keccak256(0x00, 0x40)))
if or(negBits, gt(bucket, lastBucket)) { break }
}
if gt(bucket, lastBucket) {
negBits := shl(and(0xff, not(upTo)), shr(and(0xff, not(upTo)), negBits))
}
}
}
if (negBits != 0) {
uint256 r = (bucket << 8) | LibBit.ffs(negBits);
/// @solidity memory-safe-assembly
assembly {
unsetBitIndex := or(r, sub(0, or(gt(r, upTo), lt(r, begin))))
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @author Permit2 operations from (https://github.com/Uniswap/permit2/blob/main/src/libraries/Permit2Lib.sol)
///
/// @dev Note:
/// - For ETH transfers, please use `forceSafeTransferETH` for DoS protection.
library SafeTransferLib {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The ETH transfer has failed.
error ETHTransferFailed();
/// @dev The ERC20 `transferFrom` has failed.
error TransferFromFailed();
/// @dev The ERC20 `transfer` has failed.
error TransferFailed();
/// @dev The ERC20 `approve` has failed.
error ApproveFailed();
/// @dev The Permit2 operation has failed.
error Permit2Failed();
/// @dev The Permit2 amount must be less than `2**160 - 1`.
error Permit2AmountOverflow();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Suggested gas stipend for contract receiving ETH that disallows any storage writes.
uint256 internal constant GAS_STIPEND_NO_STORAGE_WRITES = 2300;
/// @dev Suggested gas stipend for contract receiving ETH to perform a few
/// storage reads and writes, but low enough to prevent griefing.
uint256 internal constant GAS_STIPEND_NO_GRIEF = 100000;
/// @dev The unique EIP-712 domain domain separator for the DAI token contract.
bytes32 internal constant DAI_DOMAIN_SEPARATOR =
0xdbb8cf42e1ecb028be3f3dbc922e1d878b963f411dc388ced501601c60f7c6f7;
/// @dev The address for the WETH9 contract on Ethereum mainnet.
address internal constant WETH9 = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
/// @dev The canonical Permit2 address.
/// [Github](https://github.com/Uniswap/permit2)
/// [Etherscan](https://etherscan.io/address/0x000000000022D473030F116dDEE9F6B43aC78BA3)
address internal constant PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ETH OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// If the ETH transfer MUST succeed with a reasonable gas budget, use the force variants.
//
// The regular variants:
// - Forwards all remaining gas to the target.
// - Reverts if the target reverts.
// - Reverts if the current contract has insufficient balance.
//
// The force variants:
// - Forwards with an optional gas stipend
// (defaults to `GAS_STIPEND_NO_GRIEF`, which is sufficient for most cases).
// - If the target reverts, or if the gas stipend is exhausted,
// creates a temporary contract to force send the ETH via `SELFDESTRUCT`.
// Future compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758.
// - Reverts if the current contract has insufficient balance.
//
// The try variants:
// - Forwards with a mandatory gas stipend.
// - Instead of reverting, returns whether the transfer succeeded.
/// @dev Sends `amount` (in wei) ETH to `to`.
function safeTransferETH(address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
if iszero(call(gas(), to, amount, codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Sends all the ETH in the current contract to `to`.
function safeTransferAllETH(address to) internal {
/// @solidity memory-safe-assembly
assembly {
// Transfer all the ETH and check if it succeeded or not.
if iszero(call(gas(), to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Force sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
function forceSafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal {
/// @solidity memory-safe-assembly
assembly {
if lt(selfbalance(), amount) {
mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
revert(0x1c, 0x04)
}
if iszero(call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, to) // Store the address in scratch space.
mstore8(0x0b, 0x73) // Opcode `PUSH20`.
mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
}
}
}
/// @dev Force sends all the ETH in the current contract to `to`, with a `gasStipend`.
function forceSafeTransferAllETH(address to, uint256 gasStipend) internal {
/// @solidity memory-safe-assembly
assembly {
if iszero(call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, to) // Store the address in scratch space.
mstore8(0x0b, 0x73) // Opcode `PUSH20`.
mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
}
}
}
/// @dev Force sends `amount` (in wei) ETH to `to`, with `GAS_STIPEND_NO_GRIEF`.
function forceSafeTransferETH(address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
if lt(selfbalance(), amount) {
mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
revert(0x1c, 0x04)
}
if iszero(call(GAS_STIPEND_NO_GRIEF, to, amount, codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, to) // Store the address in scratch space.
mstore8(0x0b, 0x73) // Opcode `PUSH20`.
mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
}
}
}
/// @dev Force sends all the ETH in the current contract to `to`, with `GAS_STIPEND_NO_GRIEF`.
function forceSafeTransferAllETH(address to) internal {
/// @solidity memory-safe-assembly
assembly {
// forgefmt: disable-next-item
if iszero(call(GAS_STIPEND_NO_GRIEF, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, to) // Store the address in scratch space.
mstore8(0x0b, 0x73) // Opcode `PUSH20`.
mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
}
}
}
/// @dev Sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
function trySafeTransferETH(address to, uint256 amount, uint256 gasStipend)
internal
returns (bool success)
{
/// @solidity memory-safe-assembly
assembly {
success := call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)
}
}
/// @dev Sends all the ETH in the current contract to `to`, with a `gasStipend`.
function trySafeTransferAllETH(address to, uint256 gasStipend)
internal
returns (bool success)
{
/// @solidity memory-safe-assembly
assembly {
success := call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC20 OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
/// Reverts upon failure.
///
/// The `from` account must have at least `amount` approved for
/// the current contract to manage.
function safeTransferFrom(address token, address from, address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
mstore(0x60, amount) // Store the `amount` argument.
mstore(0x40, to) // Store the `to` argument.
mstore(0x2c, shl(96, from)) // Store the `from` argument.
mstore(0x0c, 0x23b872dd000000000000000000000000) // `transferFrom(address,address,uint256)`.
let success := call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
revert(0x1c, 0x04)
}
}
mstore(0x60, 0) // Restore the zero slot to zero.
mstore(0x40, m) // Restore the free memory pointer.
}
}
/// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
///
/// The `from` account must have at least `amount` approved for the current contract to manage.
function trySafeTransferFrom(address token, address from, address to, uint256 amount)
internal
returns (bool success)
{
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
mstore(0x60, amount) // Store the `amount` argument.
mstore(0x40, to) // Store the `to` argument.
mstore(0x2c, shl(96, from)) // Store the `from` argument.
mstore(0x0c, 0x23b872dd000000000000000000000000) // `transferFrom(address,address,uint256)`.
success := call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
success := lt(or(iszero(extcodesize(token)), returndatasize()), success)
}
mstore(0x60, 0) // Restore the zero slot to zero.
mstore(0x40, m) // Restore the free memory pointer.
}
}
/// @dev Sends all of ERC20 `token` from `from` to `to`.
/// Reverts upon failure.
///
/// The `from` account must have their entire balance approved for the current contract to manage.
function safeTransferAllFrom(address token, address from, address to)
internal
returns (uint256 amount)
{
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
mstore(0x40, to) // Store the `to` argument.
mstore(0x2c, shl(96, from)) // Store the `from` argument.
mstore(0x0c, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
// Read the balance, reverting upon failure.
if iszero(
and( // The arguments of `and` are evaluated from right to left.
gt(returndatasize(), 0x1f), // At least 32 bytes returned.
staticcall(gas(), token, 0x1c, 0x24, 0x60, 0x20)
)
) {
mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
revert(0x1c, 0x04)
}
mstore(0x00, 0x23b872dd) // `transferFrom(address,address,uint256)`.
amount := mload(0x60) // The `amount` is already at 0x60. We'll need to return it.
// Perform the transfer, reverting upon failure.
let success := call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
revert(0x1c, 0x04)
}
}
mstore(0x60, 0) // Restore the zero slot to zero.
mstore(0x40, m) // Restore the free memory pointer.
}
}
/// @dev Sends `amount` of ERC20 `token` from the current contract to `to`.
/// Reverts upon failure.
function safeTransfer(address token, address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
mstore(0x14, to) // Store the `to` argument.
mstore(0x34, amount) // Store the `amount` argument.
mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
// Perform the transfer, reverting upon failure.
let success := call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
revert(0x1c, 0x04)
}
}
mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
}
}
/// @dev Sends all of ERC20 `token` from the current contract to `to`.
/// Reverts upon failure.
function safeTransferAll(address token, address to) internal returns (uint256 amount) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, 0x70a08231) // Store the function selector of `balanceOf(address)`.
mstore(0x20, address()) // Store the address of the current contract.
// Read the balance, reverting upon failure.
if iszero(
and( // The arguments of `and` are evaluated from right to left.
gt(returndatasize(), 0x1f), // At least 32 bytes returned.
staticcall(gas(), token, 0x1c, 0x24, 0x34, 0x20)
)
) {
mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
revert(0x1c, 0x04)
}
mstore(0x14, to) // Store the `to` argument.
amount := mload(0x34) // The `amount` is already at 0x34. We'll need to return it.
mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
// Perform the transfer, reverting upon failure.
let success := call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
revert(0x1c, 0x04)
}
}
mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
}
}
/// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
/// Reverts upon failure.
function safeApprove(address token, address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
mstore(0x14, to) // Store the `to` argument.
mstore(0x34, amount) // Store the `amount` argument.
mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
let success := call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
revert(0x1c, 0x04)
}
}
mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
}
}
/// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
/// If the initial attempt to approve fails, attempts to reset the approved amount to zero,
/// then retries the approval again (some tokens, e.g. USDT, requires this).
/// Reverts upon failure.
function safeApproveWithRetry(address token, address to, uint256 amount) internal {
/// @solidity memory-safe-assembly
assembly {
mstore(0x14, to) // Store the `to` argument.
mstore(0x34, amount) // Store the `amount` argument.
mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
// Perform the approval, retrying upon failure.
let success := call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x34, 0) // Store 0 for the `amount`.
mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
pop(call(gas(), token, 0, 0x10, 0x44, codesize(), 0x00)) // Reset the approval.
mstore(0x34, amount) // Store back the original `amount`.
// Retry the approval, reverting upon failure.
success := call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
if iszero(and(eq(mload(0x00), 1), success)) {
// Check the `extcodesize` again just in case the token selfdestructs lol.
if iszero(lt(or(iszero(extcodesize(token)), returndatasize()), success)) {
mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
revert(0x1c, 0x04)
}
}
}
}
mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
}
}
/// @dev Returns the amount of ERC20 `token` owned by `account`.
/// Returns zero if the `token` does not exist.
function balanceOf(address token, address account) internal view returns (uint256 amount) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x14, account) // Store the `account` argument.
mstore(0x00, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
amount :=
mul( // The arguments of `mul` are evaluated from right to left.
mload(0x20),
and( // The arguments of `and` are evaluated from right to left.
gt(returndatasize(), 0x1f), // At least 32 bytes returned.
staticcall(gas(), token, 0x10, 0x24, 0x20, 0x20)
)
)
}
}
/// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
/// If the initial attempt fails, try to use Permit2 to transfer the token.
/// Reverts upon failure.
///
/// The `from` account must have at least `amount` approved for the current contract to manage.
function safeTransferFrom2(address token, address from, address to, uint256 amount) internal {
if (!trySafeTransferFrom(token, from, to, amount)) {
permit2TransferFrom(token, from, to, amount);
}
}
/// @dev Sends `amount` of ERC20 `token` from `from` to `to` via Permit2.
/// Reverts upon failure.
function permit2TransferFrom(address token, address from, address to, uint256 amount)
internal
{
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40)
mstore(add(m, 0x74), shr(96, shl(96, token)))
mstore(add(m, 0x54), amount)
mstore(add(m, 0x34), to)
mstore(add(m, 0x20), shl(96, from))
// `transferFrom(address,address,uint160,address)`.
mstore(m, 0x36c78516000000000000000000000000)
let p := PERMIT2
let exists := eq(chainid(), 1)
if iszero(exists) { exists := iszero(iszero(extcodesize(p))) }
if iszero(
and(
call(gas(), p, 0, add(m, 0x10), 0x84, codesize(), 0x00),
lt(iszero(extcodesize(token)), exists) // Token has code and Permit2 exists.
)
) {
mstore(0x00, 0x7939f4248757f0fd) // `TransferFromFailed()` or `Permit2AmountOverflow()`.
revert(add(0x18, shl(2, iszero(iszero(shr(160, amount))))), 0x04)
}
}
}
/// @dev Permit a user to spend a given amount of
/// another user's tokens via native EIP-2612 permit if possible, falling
/// back to Permit2 if native permit fails or is not implemented on the token.
function permit2(
address token,
address owner,
address spender,
uint256 amount,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
bool success;
/// @solidity memory-safe-assembly
assembly {
for {} shl(96, xor(token, WETH9)) {} {
mstore(0x00, 0x3644e515) // `DOMAIN_SEPARATOR()`.
if iszero(
and( // The arguments of `and` are evaluated from right to left.
lt(iszero(mload(0x00)), eq(returndatasize(), 0x20)), // Returns 1 non-zero word.
// Gas stipend to limit gas burn for tokens that don't refund gas when
// an non-existing function is called. 5K should be enough for a SLOAD.
staticcall(5000, token, 0x1c, 0x04, 0x00, 0x20)
)
) { break }
// After here, we can be sure that token is a contract.
let m := mload(0x40)
mstore(add(m, 0x34), spender)
mstore(add(m, 0x20), shl(96, owner))
mstore(add(m, 0x74), deadline)
if eq(mload(0x00), DAI_DOMAIN_SEPARATOR) {
mstore(0x14, owner)
mstore(0x00, 0x7ecebe00000000000000000000000000) // `nonces(address)`.
mstore(add(m, 0x94), staticcall(gas(), token, 0x10, 0x24, add(m, 0x54), 0x20))
mstore(m, 0x8fcbaf0c000000000000000000000000) // `IDAIPermit.permit`.
// `nonces` is already at `add(m, 0x54)`.
// `1` is already stored at `add(m, 0x94)`.
mstore(add(m, 0xb4), and(0xff, v))
mstore(add(m, 0xd4), r)
mstore(add(m, 0xf4), s)
success := call(gas(), token, 0, add(m, 0x10), 0x104, codesize(), 0x00)
break
}
mstore(m, 0xd505accf000000000000000000000000) // `IERC20Permit.permit`.
mstore(add(m, 0x54), amount)
mstore(add(m, 0x94), and(0xff, v))
mstore(add(m, 0xb4), r)
mstore(add(m, 0xd4), s)
success := call(gas(), token, 0, add(m, 0x10), 0xe4, codesize(), 0x00)
break
}
}
if (!success) simplePermit2(token, owner, spender, amount, deadline, v, r, s);
}
/// @dev Simple permit on the Permit2 contract.
function simplePermit2(
address token,
address owner,
address spender,
uint256 amount,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40)
mstore(m, 0x927da105) // `allowance(address,address,address)`.
{
let addressMask := shr(96, not(0))
mstore(add(m, 0x20), and(addressMask, owner))
mstore(add(m, 0x40), and(addressMask, token))
mstore(add(m, 0x60), and(addressMask, spender))
mstore(add(m, 0xc0), and(addressMask, spender))
}
let p := mul(PERMIT2, iszero(shr(160, amount)))
if iszero(
and( // The arguments of `and` are evaluated from right to left.
gt(returndatasize(), 0x5f), // Returns 3 words: `amount`, `expiration`, `nonce`.
staticcall(gas(), p, add(m, 0x1c), 0x64, add(m, 0x60), 0x60)
)
) {
mstore(0x00, 0x6b836e6b8757f0fd) // `Permit2Failed()` or `Permit2AmountOverflow()`.
revert(add(0x18, shl(2, iszero(p))), 0x04)
}
mstore(m, 0x2b67b570) // `Permit2.permit` (PermitSingle variant).
// `owner` is already `add(m, 0x20)`.
// `token` is already at `add(m, 0x40)`.
mstore(add(m, 0x60), amount)
mstore(add(m, 0x80), 0xffffffffffff) // `expiration = type(uint48).max`.
// `nonce` is already at `add(m, 0xa0)`.
// `spender` is already at `add(m, 0xc0)`.
mstore(add(m, 0xe0), deadline)
mstore(add(m, 0x100), 0x100) // `signature` offset.
mstore(add(m, 0x120), 0x41) // `signature` length.
mstore(add(m, 0x140), r)
mstore(add(m, 0x160), s)
mstore(add(m, 0x180), shl(248, v))
if iszero( // Revert if token does not have code, or if the call fails.
mul(extcodesize(token), call(gas(), p, 0, add(m, 0x1c), 0x184, codesize(), 0x00))) {
mstore(0x00, 0x6b836e6b) // `Permit2Failed()`.
revert(0x1c, 0x04)
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Library for bit twiddling and boolean operations.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibBit.sol)
/// @author Inspired by (https://graphics.stanford.edu/~seander/bithacks.html)
library LibBit {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BIT TWIDDLING OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Find last set.
/// Returns the index of the most significant bit of `x`,
/// counting from the least significant bit position.
/// If `x` is zero, returns 256.
function fls(uint256 x) internal pure returns (uint256 r) {
/// @solidity memory-safe-assembly
assembly {
r := or(shl(8, iszero(x)), shl(7, lt(0xffffffffffffffffffffffffffffffff, x)))
r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, x))))
r := or(r, shl(5, lt(0xffffffff, shr(r, x))))
r := or(r, shl(4, lt(0xffff, shr(r, x))))
r := or(r, shl(3, lt(0xff, shr(r, x))))
// forgefmt: disable-next-item
r := or(r, byte(and(0x1f, shr(shr(r, x), 0x8421084210842108cc6318c6db6d54be)),
0x0706060506020504060203020504030106050205030304010505030400000000))
}
}
/// @dev Count leading zeros.
/// Returns the number of zeros preceding the most significant one bit.
/// If `x` is zero, returns 256.
function clz(uint256 x) internal pure returns (uint256 r) {
/// @solidity memory-safe-assembly
assembly {
r := shl(7, lt(0xffffffffffffffffffffffffffffffff, x))
r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, x))))
r := or(r, shl(5, lt(0xffffffff, shr(r, x))))
r := or(r, shl(4, lt(0xffff, shr(r, x))))
r := or(r, shl(3, lt(0xff, shr(r, x))))
// forgefmt: disable-next-item
r := add(xor(r, byte(and(0x1f, shr(shr(r, x), 0x8421084210842108cc6318c6db6d54be)),
0xf8f9f9faf9fdfafbf9fdfcfdfafbfcfef9fafdfafcfcfbfefafafcfbffffffff)), iszero(x))
}
}
/// @dev Find first set.
/// Returns the index of the least significant bit of `x`,
/// counting from the least significant bit position.
/// If `x` is zero, returns 256.
/// Equivalent to `ctz` (count trailing zeros), which gives
/// the number of zeros following the least significant one bit.
function ffs(uint256 x) internal pure returns (uint256 r) {
/// @solidity memory-safe-assembly
assembly {
// Isolate the least significant bit.
x := and(x, add(not(x), 1))
// For the upper 3 bits of the result, use a De Bruijn-like lookup.
// Credit to adhusson: https://blog.adhusson.com/cheap-find-first-set-evm/
// forgefmt: disable-next-item
r := shl(5, shr(252, shl(shl(2, shr(250, mul(x,
0xb6db6db6ddddddddd34d34d349249249210842108c6318c639ce739cffffffff))),
0x8040405543005266443200005020610674053026020000107506200176117077)))
// For the lower 5 bits of the result, use a De Bruijn lookup.
// forgefmt: disable-next-item
r := or(r, byte(and(div(0xd76453e0, shr(r, x)), 0x1f),
0x001f0d1e100c1d070f090b19131c1706010e11080a1a141802121b1503160405))
}
}
/// @dev Returns the number of set bits in `x`.
function popCount(uint256 x) internal pure returns (uint256 c) {
/// @solidity memory-safe-assembly
assembly {
let max := not(0)
let isMax := eq(x, max)
x := sub(x, and(shr(1, x), div(max, 3)))
x := add(and(x, div(max, 5)), and(shr(2, x), div(max, 5)))
x := and(add(x, shr(4, x)), div(max, 17))
c := or(shl(8, isMax), shr(248, mul(x, div(max, 255))))
}
}
/// @dev Returns whether `x` is a power of 2.
function isPo2(uint256 x) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
// Equivalent to `x && !(x & (x - 1))`.
result := iszero(add(and(x, sub(x, 1)), iszero(x)))
}
}
/// @dev Returns `x` reversed at the bit level.
function reverseBits(uint256 x) internal pure returns (uint256 r) {
uint256 m0 = 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f;
uint256 m1 = m0 ^ (m0 << 2);
uint256 m2 = m1 ^ (m1 << 1);
r = reverseBytes(x);
r = (m2 & (r >> 1)) | ((m2 & r) << 1);
r = (m1 & (r >> 2)) | ((m1 & r) << 2);
r = (m0 & (r >> 4)) | ((m0 & r) << 4);
}
/// @dev Returns `x` reversed at the byte level.
function reverseBytes(uint256 x) internal pure returns (uint256 r) {
unchecked {
// Computing masks on-the-fly reduces bytecode size by about 200 bytes.
uint256 m0 = 0x100000000000000000000000000000001 * (~toUint(x == uint256(0)) >> 192);
uint256 m1 = m0 ^ (m0 << 32);
uint256 m2 = m1 ^ (m1 << 16);
uint256 m3 = m2 ^ (m2 << 8);
r = (m3 & (x >> 8)) | ((m3 & x) << 8);
r = (m2 & (r >> 16)) | ((m2 & r) << 16);
r = (m1 & (r >> 32)) | ((m1 & r) << 32);
r = (m0 & (r >> 64)) | ((m0 & r) << 64);
r = (r >> 128) | (r << 128);
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BOOLEAN OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// A Solidity bool on the stack or memory is represented as a 256-bit word.
// Non-zero values are true, zero is false.
// A clean bool is either 0 (false) or 1 (true) under the hood.
// Usually, if not always, the bool result of a regular Solidity expression,
// or the argument of a public/external function will be a clean bool.
// You can usually use the raw variants for more performance.
// If uncertain, test (best with exact compiler settings).
// Or use the non-raw variants (compiler can sometimes optimize out the double `iszero`s).
/// @dev Returns `x & y`. Inputs must be clean.
function rawAnd(bool x, bool y) internal pure returns (bool z) {
/// @solidity memory-safe-assembly
assembly {
z := and(x, y)
}
}
/// @dev Returns `x & y`.
function and(bool x, bool y) internal pure returns (bool z) {
/// @solidity memory-safe-assembly
assembly {
z := and(iszero(iszero(x)), iszero(iszero(y)))
}
}
/// @dev Returns `x | y`. Inputs must be clean.
function rawOr(bool x, bool y) internal pure returns (bool z) {
/// @solidity memory-safe-assembly
assembly {
z := or(x, y)
}
}
/// @dev Returns `x | y`.
function or(bool x, bool y) internal pure returns (bool z) {
/// @solidity memory-safe-assembly
assembly {
z := or(iszero(iszero(x)), iszero(iszero(y)))
}
}
/// @dev Returns 1 if `b` is true, else 0. Input must be clean.
function rawToUint(bool b) internal pure returns (uint256 z) {
/// @solidity memory-safe-assembly
assembly {
z := b
}
}
/// @dev Returns 1 if `b` is true, else 0.
function toUint(bool b) internal pure returns (uint256 z) {
/// @solidity memory-safe-assembly
assembly {
z := iszero(iszero(b))
}
}
}{
"remappings": [
"forge-std/=lib/forge-std/src/",
"solady/=lib/solady/src/",
"@openzeppelin-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
"@openzeppelin/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
"@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
"@openzeppelin/contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/",
"ds-test/=lib/openzeppelin-contracts-upgradeable/lib/forge-std/lib/ds-test/src/",
"erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
"forge-std/=lib/forge-std/src/",
"halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
"openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
"openzeppelin-contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
"solady/=lib/solady/src/"
],
"optimizer": {
"enabled": true,
"runs": 1000
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "cancun",
"viaIR": false,
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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ype":"address"}],"name":"completeOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"getSkipNFT","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"grantRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAllRoles","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAnyRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockNameAndSymbol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"nftAmount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"nftAmount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"mintable","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mirrorERC721","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nameAndSymbolLocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"ownershipHandoverExpiresAt","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"renounceRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"revokeRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"rolesOf","outputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"feeBips","type":"uint256"}],"name":"setExchangeNFTFeeRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"mintable_","type":"bool"}],"name":"setMintable","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"name":"setNameAndSymbol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"skipNFT","type":"bool"}],"name":"setSkipNFT","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"result","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalMinted","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000bbbba1ee822c9b8fc134dea6adfc26603a9cbbbb
-----Decoded View---------------
Arg [0] : mirror (address): 0xBBBBA1eE822c9B8fc134deA6aDfC26603a9cBBBB
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000bbbba1ee822c9b8fc134dea6adfc26603a9cbbbb
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