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Contract Name
LaunchToken (诺克萨生命)
Compiler
solidity · v0.8.26+commit.8a97fa7a
Optimization
Yes · 200 runs
EVM Version
cancun
Source
Mirrored from Robinhood Chain explorer
Contract Source Code
Outline
C LaunchToken
ƒ setRestrictionExempt
ƒ restrictionsActive
ƒ _update
LaunchToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
/// @notice ERC20 launched by the LaunchFactory. Enforces anti-snipe max-wallet /
/// max-tx limits until `restrictionsEndBlock`, after which it behaves as a plain ERC20.
contract LaunchToken is ERC20 {
error NotFactory();
error MaxWalletExceeded();
error MaxTxExceeded();
address public immutable factory;
uint256 public immutable restrictionsEndBlock;
uint256 public immutable maxWalletAmount; // 0 = no limit
uint256 public immutable maxTxAmount; // 0 = no limit
/// @notice Addresses exempt from restrictions (pool, locker, position manager, router, factory).
mapping(address => bool) public restrictionExempt;
constructor(
string memory name_,
string memory symbol_,
uint256 supply_,
uint16 maxWalletBps_,
uint16 maxTxBps_,
uint256 restrictionsEndBlock_
) ERC20(name_, symbol_) {
factory = msg.sender;
restrictionsEndBlock = restrictionsEndBlock_;
maxWalletAmount = maxWalletBps_ >= 10_000 ? 0 : (supply_ * maxWalletBps_) / 10_000;
maxTxAmount = maxTxBps_ >= 10_000 ? 0 : (supply_ * maxTxBps_) / 10_000;
restrictionExempt[msg.sender] = true;
_mint(msg.sender, supply_);
}
/// @notice Factory marks protocol addresses as exempt during launch (one-way).
function setRestrictionExempt(address account) external {
if (msg.sender != factory) revert NotFactory();
restrictionExempt[account] = true;
}
function restrictionsActive() public view returns (bool) {
return block.number < restrictionsEndBlock;
}
function _update(address from, address to, uint256 value) internal override {
if (from != address(0) && to != address(0) && restrictionsActive()) {
if (maxTxAmount != 0 && value > maxTxAmount && !restrictionExempt[from] && !restrictionExempt[to]) {
revert MaxTxExceeded();
}
if (maxWalletAmount != 0 && !restrictionExempt[to] && balanceOf(to) + value > maxWalletAmount) {
revert MaxWalletExceeded();
}
}
super._update(from, to, value);
}
}Contract ABI
[
{
"type": "constructor",
"inputs": [
{
"name": "name_",
"type": "string",
"internalType": "string"
},
{
"name": "symbol_",
"type": "string",
"internalType": "string"
},
{
"name": "supply_",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "maxWalletBps_",
"type": "uint16",
"internalType": "uint16"
},
{
"name": "maxTxBps_",
"type": "uint16",
"internalType": "uint16"
},
{
"name": "restrictionsEndBlock_",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "nonpayable"
},
{
"name": "ERC20InsufficientAllowance",
"type": "error",
"inputs": [
{
"name": "spender",
"type": "address",
"internalType": "address"
},
{
"name": "allowance",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "needed",
"type": "uint256",
"internalType": "uint256"
}
]
},
{
"name": "ERC20InsufficientBalance",
"type": "error",
"inputs": [
{
"name": "sender",
"type": "address",
"internalType": "address"
},
{
"name": "balance",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "needed",
"type": "uint256",
"internalType": "uint256"
}
]
},
{
"name": "ERC20InvalidApprover",
"type": "error",
"inputs": [
{
"name": "approver",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "ERC20InvalidReceiver",
"type": "error",
"inputs": [
{
"name": "receiver",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "ERC20InvalidSender",
"type": "error",
"inputs": [
{
"name": "sender",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "ERC20InvalidSpender",
"type": "error",
"inputs": [
{
"name": "spender",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "MaxTxExceeded",
"type": "error",
"inputs": []
},
{
"name": "MaxWalletExceeded",
"type": "error",
"inputs": []
},
{
"name": "NotFactory",
"type": "error",
"inputs": []
},
{
"name": "Approval",
"type": "event",
"inputs": [
{
"name": "owner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "Transfer",
"type": "event",
"inputs": [
{
"name": "from",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "to",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "allowance",
"type": "function",
"inputs": [
{
"name": "owner",
"type": "address",
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "approve",
"type": "function",
"inputs": [
{
"name": "spender",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"name": "balanceOf",
"type": "function",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "decimals",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint8",
"internalType": "uint8"
}
],
"stateMutability": "view"
},
{
"name": "factory",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "maxTxAmount",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "maxWalletAmount",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "name",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "restrictionExempt",
"type": "function",
"inputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"name": "restrictionsActive",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"name": "restrictionsEndBlock",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "setRestrictionExempt",
"type": "function",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "symbol",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "totalSupply",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "transfer",
"type": "function",
"inputs": [
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"name": "transferFrom",
"type": "function",
"inputs": [
{
"name": "from",
"type": "address",
"internalType": "address"
},
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
}
]Creation code isn’t shown — this contract was deployed by a factory (internal CREATE), so it has no standalone creation transaction.
Deployed Bytecode
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|---|---|---|---|---|
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Address
0x145298aa67b5442ba55a9f7c8061260f544ddddf
Type
ERC-20 Token
Bytecode Size
2423 bytes
Created at
Balance
0 ETH
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