Contract 0xD3b06cEbF099CE7DA4AcCf578aaebFDBd6e88a93 2

Contract Overview

Balance:
0 ETH
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0xcd3482d870bc847b5e359654b8f465206fbf16fcc113f3ad5886c3cc0bd9d0bdCcip Send85744362024-04-12 10:19:203 days 12 hrs ago0xe4217040c894e8873ee19d675b6d0eec992c2c0d IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000765766623125 ETH0.0007907936741.500000292
0xe08a773e58d996c588597d4e78ad3aad0cc805ae5c8fdcc453fc092edbe7a95aCcip Send85743882024-04-12 10:17:443 days 12 hrs ago0xe4217040c894e8873ee19d675b6d0eec992c2c0d IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000839796179959 ETH0.0008095354031.50000029
0x92b48ac2a644311f4162d4d079d3788d32b086ba49eeb59c165f60015d134099Ccip Send85431762024-04-11 16:57:204 days 6 hrs ago0x3f1cf2c4ed96554b76763c8b38d66b66cc48e841 IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.001322002172121 ETH0.0008179535641.500000281
0x161f2b36881faee58e816ff7ec47578fea5cef523eee2e9fe6556ceeea2921f6Ccip Send85424322024-04-11 16:32:324 days 6 hrs ago0xaddfe0b2342800ebd67c30d1c2bd479e4d498bd5 IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000675257030515 ETH0.0006782611071.500000283
0x0363fd25f615a742f2450b6a7d1935e7a70452f71b78950b804026569b24eb2fCcip Send84937002024-04-10 13:28:085 days 9 hrs ago0xe4217040c894e8873ee19d675b6d0eec992c2c0d IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000150305555555 ETH0.0006664886121.500000313
0xb20e34989f5b806e70aa3ec8b9972e420d1d1f0e17112a0753de4e98ad9700fcCcip Send84876932024-04-10 10:07:545 days 13 hrs ago0xe4217040c894e8873ee19d675b6d0eec992c2c0d IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000712542580555 ETH0.000331679151.500000287
0x021edbcc33642f9bfc67c5cd4952b8b343cd279ff5a355db890327e58966cafbCcip Send84862492024-04-10 9:19:465 days 13 hrs ago0xe4217040c894e8873ee19d675b6d0eec992c2c0d IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000548511168315 ETH0.0003214889411.500000295
0x1f21de801e498081dcd011057efe07188eb3ac1e25f5636a1962f11b104e73f6Ccip Send84413342024-04-09 8:22:366 days 14 hrs ago0xfcbd8ec3f8cb200fa26dc7892da24ad94373978c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000266111111111 ETH0.0006353967571.500000292
0x17297f273018322778d16f5a5e797273d970b7d2eb30974a213251d0fa1f5c82Ccip Send82728342024-04-05 10:45:5610 days 12 hrs ago0xfcbd8ec3f8cb200fa26dc7892da24ad94373978c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000624055651063 ETH0.0004200579621.500000331
0x848f1968a1cb6c817dc640aef6232dc04039f083428ac77345900a1029f7ae0eCcip Send82484742024-04-04 21:13:5611 days 1 hr ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000150325555555 ETH0.0000351050150.001000287
0xc7e96c0cda1aaee450f94fc1f750bc5f6b9800c9286e69784a7bccc5d2c82647Ccip Send82466392024-04-04 20:12:4611 days 2 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000347815960.001000286
0x19e50bd2b2043d67c3778bce90b7c564291dca15e4dc11527aa20e4c1366099bCcip Send82072292024-04-03 22:19:0612 days 50 mins ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000076775420.001000252
0xfaddb89a2a0a317d2b7c9944c229b553d96cd7f804e8a679f9259fd0a36aebc2Ccip Send82068252024-04-03 22:05:3812 days 1 hr ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000100201150.001000252
0xa641df5d5db769123a23506ac5d690ef58ed249553a8e72a5aa44af5c2a7029aCcip Send82063592024-04-03 21:50:0612 days 1 hr ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000274635730.001000252
0x9520436bc6c9552a073670c0a249abd5aa88b7ec9c840ad3f6422655dcfa1db3Ccip Send79954132024-03-30 0:38:3416 days 22 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000071251310.001000252
0xa8e04a02c12f3d8c7dc5b33d3f3937412a78570ce4bccb78deb97e308796b63fCcip Send79954132024-03-30 0:38:3416 days 22 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000071421890.001000252
0xcd7b8246a44cd09a9f597551ed3df61cea1be26b7b244ac3d04af63f45dbf094Ccip Send79945132024-03-30 0:08:3416 days 23 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000058895480.001000252
0x1c37bffe6504879df293759c9b3fc80e0d72c6b2f61b330371ca9b10338e7d62Ccip Send79945132024-03-30 0:08:3416 days 23 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000058895480.001000252
0x73cf80a057201ddcfb619c779f4ef64e000a2209db924b6abe8ca81cd2282dbcCcip Send79936142024-03-29 23:38:3616 days 23 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000050502090.001000252
0x479dc2041a2d9bd62bdcd2f71c1360d65e904dd988a30fd2348eb17657b2ed36Ccip Send79936132024-03-29 23:38:3416 days 23 hrs ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000050382290.001000252
0x25eba29dec0c443a42f52383cc33dd4a16ede3b571826f0de32d818284d26a1eCcip Send79927132024-03-29 23:08:3417 days ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000043328550.001000252
0xeb8ca07580f99128b414c4830f1d56b73bffddf676fd07fc8e538d0a06d149c0Ccip Send79927132024-03-29 23:08:3417 days ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000043328550.001000252
0x58ebafc4e6a2ad3e61b67f8c6e4bc431fdfd2ed0127fcae7e1358ce480ae1189Ccip Send79918132024-03-29 22:38:3417 days 30 mins ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000050502090.001000252
0x89c0081c59250ab0abf113563bfaff37d0962212747f488b91c3ef9acce5384bCcip Send79918132024-03-29 22:38:3417 days 30 mins ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000050382290.001000252
0x81d5d97b5465dc28c431f764805c720cda8b9edf385c9244777aae3320cdfdb9Ccip Send79909132024-03-29 22:08:3417 days 1 hr ago0x1a2a69e3eb1382fe34bc579add5bae39e31d4a2c IN  0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930 ETH0.0000045017740.001000252
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Latest 25 internal transaction
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0x95a38a94883e0eddf2084eb9ac702ea1ad80aa09921d158fa19286332bae837b86547962024-04-14 6:58:001 day 16 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.001104621078903361 ETH
0x95a38a94883e0eddf2084eb9ac702ea1ad80aa09921d158fa19286332bae837b86547962024-04-14 6:58:001 day 16 hrs ago 0xfe823dddb1e0f5162a1a500672fb06f11142ff14 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.001104621078903361 ETH
0x41a7df915542bd4cb7a223494974db9c852ccc9dab3e9efe65da6786a46bec6f86541862024-04-14 6:37:401 day 16 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000939284161628017 ETH
0x41a7df915542bd4cb7a223494974db9c852ccc9dab3e9efe65da6786a46bec6f86541862024-04-14 6:37:401 day 16 hrs ago 0xfe823dddb1e0f5162a1a500672fb06f11142ff14 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000939284161628017 ETH
0xcf25621dcfab3ff34a40ffeeaffe3b169c8d0e955e46eb3441a1d3d0442feee086527212024-04-14 5:48:501 day 17 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000939261912380945 ETH
0xcf25621dcfab3ff34a40ffeeaffe3b169c8d0e955e46eb3441a1d3d0442feee086527212024-04-14 5:48:501 day 17 hrs ago 0xfe823dddb1e0f5162a1a500672fb06f11142ff14 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000939261912380945 ETH
0xa782879ba167a801378247a00ab734faed09f9f78dd2551dcefcbb3b0e7e167086427312024-04-14 0:15:501 day 22 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000939345704947553 ETH
0xa782879ba167a801378247a00ab734faed09f9f78dd2551dcefcbb3b0e7e167086427312024-04-14 0:15:501 day 22 hrs ago 0xfe823dddb1e0f5162a1a500672fb06f11142ff14 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000939345704947553 ETH
0xcd3482d870bc847b5e359654b8f465206fbf16fcc113f3ad5886c3cc0bd9d0bd85744362024-04-12 10:19:203 days 12 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000765766623125555 ETH
0xe08a773e58d996c588597d4e78ad3aad0cc805ae5c8fdcc453fc092edbe7a95a85743882024-04-12 10:17:443 days 12 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000839796179959555 ETH
0x92b48ac2a644311f4162d4d079d3788d32b086ba49eeb59c165f60015d13409985431762024-04-11 16:57:204 days 6 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.001322002172121333 ETH
0x161f2b36881faee58e816ff7ec47578fea5cef523eee2e9fe6556ceeea2921f685424322024-04-11 16:32:324 days 6 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000675257030515555 ETH
0x80acc11a7d7a7cbb36008987a2b92638e5c73930898dda13db267017ff5c5f5885341742024-04-11 11:57:164 days 11 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.001081430162419441 ETH
0x80acc11a7d7a7cbb36008987a2b92638e5c73930898dda13db267017ff5c5f5885341742024-04-11 11:57:164 days 11 hrs ago 0x8f0eba86f0b0379cc0c6cc5ed490010a920416c0 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.001081430162419441 ETH
0xd461c405459e3268f82f8b1b6776f7086a7ba120e208549e9a158e5f2c17bc7e85318522024-04-11 10:39:524 days 12 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.001148384846945873 ETH
0xd461c405459e3268f82f8b1b6776f7086a7ba120e208549e9a158e5f2c17bc7e85318522024-04-11 10:39:524 days 12 hrs ago 0x8f0eba86f0b0379cc0c6cc5ed490010a920416c0 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.001148384846945873 ETH
0x13d0ce2f70e6b706d60c32dd1d0e7a46094850dc438d864a25fe935ba3fd7ff685304202024-04-11 9:52:084 days 13 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000057210580516771 ETH
0x13d0ce2f70e6b706d60c32dd1d0e7a46094850dc438d864a25fe935ba3fd7ff685304202024-04-11 9:52:084 days 13 hrs ago 0x8f0eba86f0b0379cc0c6cc5ed490010a920416c0 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000057210580516771 ETH
0x00b18abf2f9ce8bad9fe82830657c1c33d232556952703e3f101549a518ee4b085221882024-04-11 5:17:444 days 17 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.001404739726296545 ETH
0x00b18abf2f9ce8bad9fe82830657c1c33d232556952703e3f101549a518ee4b085221882024-04-11 5:17:444 days 17 hrs ago 0x4e327042770247477f743e6680b1decbcfc93cba 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.001404739726296545 ETH
0x64fe9f494b4e80391627385c8e26af83006431c0ffd9af10af21bcf86af581f785221662024-04-11 5:17:004 days 17 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000890026666666666 ETH
0x64fe9f494b4e80391627385c8e26af83006431c0ffd9af10af21bcf86af581f785221662024-04-11 5:17:004 days 17 hrs ago 0x4e327042770247477f743e6680b1decbcfc93cba 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930.000890026666666666 ETH
0x0363fd25f615a742f2450b6a7d1935e7a70452f71b78950b804026569b24eb2f84937002024-04-10 13:28:085 days 9 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000150305555555555 ETH
0xb20e34989f5b806e70aa3ec8b9972e420d1d1f0e17112a0753de4e98ad9700fc84876932024-04-10 10:07:545 days 13 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000712542580555555 ETH
0x021edbcc33642f9bfc67c5cd4952b8b343cd279ff5a355db890327e58966cafb84862492024-04-10 9:19:465 days 13 hrs ago 0xd3b06cebf099ce7da4accf578aaebfdbd6e88a930x42000000000000000000000000000000000000060.000548511168315555 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x076b8bd0b84c1d1a17c8d73b5b43b67bd91bc62a
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Router

Compiler Version
v0.8.19+commit.7dd6d404

Optimization Enabled:
Yes with 26000 runs

Other Settings:
paris EvmVersion
File 1 of 23 : Router.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

import {ITypeAndVersion} from "../shared/interfaces/ITypeAndVersion.sol";
import {IRouterClient} from "./interfaces/IRouterClient.sol";
import {IRouter} from "./interfaces/IRouter.sol";
import {IEVM2AnyOnRamp} from "./interfaces/IEVM2AnyOnRamp.sol";
import {IARM} from "./interfaces/IARM.sol";
import {IWrappedNative} from "./interfaces/IWrappedNative.sol";
import {IAny2EVMMessageReceiver} from "./interfaces/IAny2EVMMessageReceiver.sol";

import {Client} from "./libraries/Client.sol";
import {Internal} from "./libraries/Internal.sol";
import {CallWithExactGas} from "../shared/call/CallWithExactGas.sol";
import {OwnerIsCreator} from "../shared/access/OwnerIsCreator.sol";

import {EnumerableSet} from "../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/structs/EnumerableSet.sol";
import {SafeERC20} from "../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20} from "../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";

/// @title Router
/// @notice This is the entry point for the end user wishing to send data across chains.
/// @dev This contract is used as a router for both on-ramps and off-ramps
contract Router is IRouter, IRouterClient, ITypeAndVersion, OwnerIsCreator {
  using SafeERC20 for IERC20;
  using EnumerableSet for EnumerableSet.UintSet;

  error FailedToSendValue();
  error InvalidRecipientAddress(address to);
  error OffRampMismatch(uint64 chainSelector, address offRamp);
  error BadARMSignal();

  event OnRampSet(uint64 indexed destChainSelector, address onRamp);
  event OffRampAdded(uint64 indexed sourceChainSelector, address offRamp);
  event OffRampRemoved(uint64 indexed sourceChainSelector, address offRamp);
  event MessageExecuted(bytes32 messageId, uint64 sourceChainSelector, address offRamp, bytes32 calldataHash);

  struct OnRamp {
    uint64 destChainSelector;
    address onRamp;
  }

  struct OffRamp {
    uint64 sourceChainSelector;
    address offRamp;
  }

  // solhint-disable-next-line chainlink-solidity/all-caps-constant-storage-variables
  string public constant override typeAndVersion = "Router 1.2.0";
  // We limit return data to a selector plus 4 words. This is to avoid
  // malicious contracts from returning large amounts of data and causing
  // repeated out-of-gas scenarios.
  uint16 public constant MAX_RET_BYTES = 4 + 4 * 32;
  // STATIC CONFIG
  // Address of arm proxy contract.
  address private immutable i_armProxy;

  // DYNAMIC CONFIG
  address private s_wrappedNative;
  // destChainSelector => onRamp address
  // Only ever one onRamp enabled at a time for a given destChainSelector.
  mapping(uint256 destChainSelector => address onRamp) private s_onRamps;
  // Stores [sourceChainSelector << 160 + offramp] as a pair to allow for
  // lookups for specific chain/offramp pairs.
  EnumerableSet.UintSet private s_chainSelectorAndOffRamps;

  constructor(address wrappedNative, address armProxy) {
    // Zero address indicates unsupported auto-wrapping, therefore, unsupported
    // native fee token payments.
    s_wrappedNative = wrappedNative;
    i_armProxy = armProxy;
  }

  // ================================================================
  // │                       Message sending                        │
  // ================================================================

  /// @inheritdoc IRouterClient
  function getFee(
    uint64 destinationChainSelector,
    Client.EVM2AnyMessage memory message
  ) external view returns (uint256 fee) {
    if (message.feeToken == address(0)) {
      // For empty feeToken return native quote.
      message.feeToken = address(s_wrappedNative);
    }
    address onRamp = s_onRamps[destinationChainSelector];
    if (onRamp == address(0)) revert UnsupportedDestinationChain(destinationChainSelector);
    return IEVM2AnyOnRamp(onRamp).getFee(destinationChainSelector, message);
  }

  /// @inheritdoc IRouterClient
  function getSupportedTokens(uint64 chainSelector) external view returns (address[] memory) {
    if (!isChainSupported(chainSelector)) {
      return new address[](0);
    }
    return IEVM2AnyOnRamp(s_onRamps[uint256(chainSelector)]).getSupportedTokens(chainSelector);
  }

  /// @inheritdoc IRouterClient
  function isChainSupported(uint64 chainSelector) public view returns (bool) {
    return s_onRamps[chainSelector] != address(0);
  }

  /// @inheritdoc IRouterClient
  function ccipSend(
    uint64 destinationChainSelector,
    Client.EVM2AnyMessage memory message
  ) external payable whenHealthy returns (bytes32) {
    address onRamp = s_onRamps[destinationChainSelector];
    if (onRamp == address(0)) revert UnsupportedDestinationChain(destinationChainSelector);
    uint256 feeTokenAmount;
    // address(0) signals payment in true native
    if (message.feeToken == address(0)) {
      // for fee calculation we check the wrapped native price as we wrap
      // as part of the native fee coin payment.
      message.feeToken = s_wrappedNative;
      // We rely on getFee to validate that the feeToken is whitelisted.
      feeTokenAmount = IEVM2AnyOnRamp(onRamp).getFee(destinationChainSelector, message);
      // Ensure sufficient native.
      if (msg.value < feeTokenAmount) revert InsufficientFeeTokenAmount();
      // Wrap and send native payment.
      // Note we take the whole msg.value regardless if its larger.
      feeTokenAmount = msg.value;
      IWrappedNative(message.feeToken).deposit{value: feeTokenAmount}();
      IERC20(message.feeToken).safeTransfer(onRamp, feeTokenAmount);
    } else {
      if (msg.value > 0) revert InvalidMsgValue();
      // We rely on getFee to validate that the feeToken is whitelisted.
      feeTokenAmount = IEVM2AnyOnRamp(onRamp).getFee(destinationChainSelector, message);
      IERC20(message.feeToken).safeTransferFrom(msg.sender, onRamp, feeTokenAmount);
    }

    // Transfer the tokens to the token pools.
    for (uint256 i = 0; i < message.tokenAmounts.length; ++i) {
      IERC20 token = IERC20(message.tokenAmounts[i].token);
      // We rely on getPoolBySourceToken to validate that the token is whitelisted.
      token.safeTransferFrom(
        msg.sender,
        address(IEVM2AnyOnRamp(onRamp).getPoolBySourceToken(destinationChainSelector, token)),
        message.tokenAmounts[i].amount
      );
    }

    return IEVM2AnyOnRamp(onRamp).forwardFromRouter(destinationChainSelector, message, feeTokenAmount, msg.sender);
  }

  // ================================================================
  // │                      Message execution                       │
  // ================================================================

  /// @inheritdoc IRouter
  /// @dev _callWithExactGas protects against return data bombs by capping the return data size at MAX_RET_BYTES.
  function routeMessage(
    Client.Any2EVMMessage calldata message,
    uint16 gasForCallExactCheck,
    uint256 gasLimit,
    address receiver
  ) external override whenHealthy returns (bool success, bytes memory retData, uint256 gasUsed) {
    // We only permit offRamps to call this function.
    if (!isOffRamp(message.sourceChainSelector, msg.sender)) revert OnlyOffRamp();

    // We encode here instead of the offRamps to constrain specifically what functions
    // can be called from the router.
    bytes memory data = abi.encodeWithSelector(IAny2EVMMessageReceiver.ccipReceive.selector, message);

    (success, retData, gasUsed) = CallWithExactGas._callWithExactGasSafeReturnData(
      data,
      receiver,
      gasLimit,
      gasForCallExactCheck,
      Internal.MAX_RET_BYTES
    );

    emit MessageExecuted(message.messageId, message.sourceChainSelector, msg.sender, keccak256(data));
    return (success, retData, gasUsed);
  }

  // @notice Merges a chain selector and offRamp address into a single uint256 by shifting the
  // chain selector 160 bits to the left.
  function _mergeChainSelectorAndOffRamp(
    uint64 sourceChainSelector,
    address offRampAddress
  ) internal pure returns (uint256) {
    return (uint256(sourceChainSelector) << 160) + uint160(offRampAddress);
  }

  // ================================================================
  // │                           Config                             │
  // ================================================================

  /// @notice Gets the wrapped representation of the native fee coin.
  /// @return The address of the ERC20 wrapped native.
  function getWrappedNative() external view returns (address) {
    return s_wrappedNative;
  }

  /// @notice Sets a new wrapped native token.
  /// @param wrappedNative The address of the new wrapped native ERC20 token.
  function setWrappedNative(address wrappedNative) external onlyOwner {
    s_wrappedNative = wrappedNative;
  }

  /// @notice Gets the arm address
  /// @return The address of the ARM proxy contract.
  function getArmProxy() external view returns (address) {
    return i_armProxy;
  }

  /// @notice Return the configured onramp for specific a destination chain.
  /// @param destChainSelector The destination chain Id to get the onRamp for.
  /// @return The address of the onRamp.
  function getOnRamp(uint64 destChainSelector) external view returns (address) {
    return s_onRamps[destChainSelector];
  }

  function getOffRamps() external view returns (OffRamp[] memory) {
    uint256[] memory encodedOffRamps = s_chainSelectorAndOffRamps.values();
    OffRamp[] memory offRamps = new OffRamp[](encodedOffRamps.length);
    for (uint256 i = 0; i < encodedOffRamps.length; ++i) {
      uint256 encodedOffRamp = encodedOffRamps[i];
      offRamps[i] = OffRamp({
        sourceChainSelector: uint64(encodedOffRamp >> 160),
        offRamp: address(uint160(encodedOffRamp))
      });
    }
    return offRamps;
  }

  function isOffRamp(uint64 sourceChainSelector, address offRamp) public view returns (bool) {
    // We have to encode the sourceChainSelector and offRamp into a uint256 to use as a key in the set.
    return s_chainSelectorAndOffRamps.contains(_mergeChainSelectorAndOffRamp(sourceChainSelector, offRamp));
  }

  /// @notice applyRampUpdates applies a set of ramp changes which provides
  /// the ability to add new chains and upgrade ramps.
  function applyRampUpdates(
    OnRamp[] calldata onRampUpdates,
    OffRamp[] calldata offRampRemoves,
    OffRamp[] calldata offRampAdds
  ) external onlyOwner {
    // Apply egress updates.
    // We permit zero address as way to disable egress.
    for (uint256 i = 0; i < onRampUpdates.length; ++i) {
      OnRamp memory onRampUpdate = onRampUpdates[i];
      s_onRamps[onRampUpdate.destChainSelector] = onRampUpdate.onRamp;
      emit OnRampSet(onRampUpdate.destChainSelector, onRampUpdate.onRamp);
    }

    // Apply ingress updates.
    for (uint256 i = 0; i < offRampRemoves.length; ++i) {
      uint64 sourceChainSelector = offRampRemoves[i].sourceChainSelector;
      address offRampAddress = offRampRemoves[i].offRamp;

      // If the selector-offRamp pair does not exist, revert.
      if (!s_chainSelectorAndOffRamps.remove(_mergeChainSelectorAndOffRamp(sourceChainSelector, offRampAddress)))
        revert OffRampMismatch(sourceChainSelector, offRampAddress);

      emit OffRampRemoved(sourceChainSelector, offRampAddress);
    }

    for (uint256 i = 0; i < offRampAdds.length; ++i) {
      uint64 sourceChainSelector = offRampAdds[i].sourceChainSelector;
      address offRampAddress = offRampAdds[i].offRamp;

      if (s_chainSelectorAndOffRamps.add(_mergeChainSelectorAndOffRamp(sourceChainSelector, offRampAddress))) {
        emit OffRampAdded(sourceChainSelector, offRampAddress);
      }
    }
  }

  /// @notice Provides the ability for the owner to recover any tokens accidentally
  /// sent to this contract.
  /// @dev Must be onlyOwner to avoid malicious token contract calls.
  /// @param tokenAddress ERC20-token to recover
  /// @param to Destination address to send the tokens to.
  function recoverTokens(address tokenAddress, address to, uint256 amount) external onlyOwner {
    if (to == address(0)) revert InvalidRecipientAddress(to);

    if (tokenAddress == address(0)) {
      (bool success, ) = to.call{value: amount}("");
      if (!success) revert FailedToSendValue();
      return;
    }
    IERC20(tokenAddress).safeTransfer(to, amount);
  }

  // ================================================================
  // │                           Access                             │
  // ================================================================

  /// @notice Ensure that the ARM has not emitted a bad signal, and that the latest heartbeat is not stale.
  modifier whenHealthy() {
    if (IARM(i_armProxy).isCursed()) revert BadARMSignal();
    _;
  }
}

File 2 of 23 : ITypeAndVersion.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ITypeAndVersion {
  function typeAndVersion() external pure returns (string memory);
}

File 3 of 23 : IRouterClient.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {Client} from "../libraries/Client.sol";

interface IRouterClient {
  error UnsupportedDestinationChain(uint64 destChainSelector);
  error InsufficientFeeTokenAmount();
  error InvalidMsgValue();

  /// @notice Checks if the given chain ID is supported for sending/receiving.
  /// @param chainSelector The chain to check.
  /// @return supported is true if it is supported, false if not.
  function isChainSupported(uint64 chainSelector) external view returns (bool supported);

  /// @notice Gets a list of all supported tokens which can be sent or received
  /// to/from a given chain id.
  /// @param chainSelector The chainSelector.
  /// @return tokens The addresses of all tokens that are supported.
  function getSupportedTokens(uint64 chainSelector) external view returns (address[] memory tokens);

  /// @param destinationChainSelector The destination chainSelector
  /// @param message The cross-chain CCIP message including data and/or tokens
  /// @return fee returns execution fee for the message
  /// delivery to destination chain, denominated in the feeToken specified in the message.
  /// @dev Reverts with appropriate reason upon invalid message.
  function getFee(
    uint64 destinationChainSelector,
    Client.EVM2AnyMessage memory message
  ) external view returns (uint256 fee);

  /// @notice Request a message to be sent to the destination chain
  /// @param destinationChainSelector The destination chain ID
  /// @param message The cross-chain CCIP message including data and/or tokens
  /// @return messageId The message ID
  /// @dev Note if msg.value is larger than the required fee (from getFee) we accept
  /// the overpayment with no refund.
  /// @dev Reverts with appropriate reason upon invalid message.
  function ccipSend(
    uint64 destinationChainSelector,
    Client.EVM2AnyMessage calldata message
  ) external payable returns (bytes32);
}

File 4 of 23 : IRouter.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {Client} from "../libraries/Client.sol";

interface IRouter {
  error OnlyOffRamp();

  /// @notice Route the message to its intended receiver contract.
  /// @param message Client.Any2EVMMessage struct.
  /// @param gasForCallExactCheck of params for exec
  /// @param gasLimit set of params for exec
  /// @param receiver set of params for exec
  /// @dev if the receiver is a contracts that signals support for CCIP execution through EIP-165.
  /// the contract is called. If not, only tokens are transferred.
  /// @return success A boolean value indicating whether the ccip message was received without errors.
  /// @return retBytes A bytes array containing return data form CCIP receiver.
  /// @return gasUsed the gas used by the external customer call. Does not include any overhead.
  function routeMessage(
    Client.Any2EVMMessage calldata message,
    uint16 gasForCallExactCheck,
    uint256 gasLimit,
    address receiver
  ) external returns (bool success, bytes memory retBytes, uint256 gasUsed);
}

File 5 of 23 : IEVM2AnyOnRamp.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IEVM2AnyOnRampClient} from "./IEVM2AnyOnRampClient.sol";

import {Internal} from "../libraries/Internal.sol";

interface IEVM2AnyOnRamp is IEVM2AnyOnRampClient {
  /// @notice Gets the next sequence number to be used in the onRamp
  /// @return the next sequence number to be used
  function getExpectedNextSequenceNumber() external view returns (uint64);

  /// @notice Get the next nonce for a given sender
  /// @param sender The sender to get the nonce for
  /// @return nonce The next nonce for the sender
  function getSenderNonce(address sender) external view returns (uint64 nonce);

  /// @notice Adds and removed token pools.
  /// @param removes The tokens and pools to be removed
  /// @param adds The tokens and pools to be added.
  function applyPoolUpdates(Internal.PoolUpdate[] memory removes, Internal.PoolUpdate[] memory adds) external;
}

File 6 of 23 : IARM.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice This interface contains the only ARM-related functions that might be used on-chain by other CCIP contracts.
interface IARM {
  /// @notice A Merkle root tagged with the address of the commit store contract it is destined for.
  struct TaggedRoot {
    address commitStore;
    bytes32 root;
  }

  /// @notice Callers MUST NOT cache the return value as a blessed tagged root could become unblessed.
  function isBlessed(TaggedRoot calldata taggedRoot) external view returns (bool);

  /// @notice When the ARM is "cursed", CCIP pauses until the curse is lifted.
  function isCursed() external view returns (bool);
}

File 7 of 23 : IWrappedNative.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";

interface IWrappedNative is IERC20 {
  function deposit() external payable;
}

File 8 of 23 : IAny2EVMMessageReceiver.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {Client} from "../libraries/Client.sol";

/// @notice Application contracts that intend to receive messages from
/// the router should implement this interface.
interface IAny2EVMMessageReceiver {
  /// @notice Called by the Router to deliver a message.
  /// If this reverts, any token transfers also revert. The message
  /// will move to a FAILED state and become available for manual execution.
  /// @param message CCIP Message
  /// @dev Note ensure you check the msg.sender is the OffRampRouter
  function ccipReceive(Client.Any2EVMMessage calldata message) external;
}

File 9 of 23 : Client.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// End consumer library.
library Client {
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct EVMTokenAmount {
    address token; // token address on the local chain.
    uint256 amount; // Amount of tokens.
  }

  struct Any2EVMMessage {
    bytes32 messageId; // MessageId corresponding to ccipSend on source.
    uint64 sourceChainSelector; // Source chain selector.
    bytes sender; // abi.decode(sender) if coming from an EVM chain.
    bytes data; // payload sent in original message.
    EVMTokenAmount[] destTokenAmounts; // Tokens and their amounts in their destination chain representation.
  }

  // If extraArgs is empty bytes, the default is 200k gas limit.
  struct EVM2AnyMessage {
    bytes receiver; // abi.encode(receiver address) for dest EVM chains
    bytes data; // Data payload
    EVMTokenAmount[] tokenAmounts; // Token transfers
    address feeToken; // Address of feeToken. address(0) means you will send msg.value.
    bytes extraArgs; // Populate this with _argsToBytes(EVMExtraArgsV1)
  }

  // bytes4(keccak256("CCIP EVMExtraArgsV1"));
  bytes4 public constant EVM_EXTRA_ARGS_V1_TAG = 0x97a657c9;
  struct EVMExtraArgsV1 {
    uint256 gasLimit;
  }

  function _argsToBytes(EVMExtraArgsV1 memory extraArgs) internal pure returns (bytes memory bts) {
    return abi.encodeWithSelector(EVM_EXTRA_ARGS_V1_TAG, extraArgs);
  }
}

File 10 of 23 : Internal.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {Client} from "./Client.sol";
import {MerkleMultiProof} from "../libraries/MerkleMultiProof.sol";

// Library for CCIP internal definitions common to multiple contracts.
library Internal {
  /// @dev The minimum amount of gas to perform the call with exact gas.
  /// We include this in the offramp so that we can redeploy to adjust it
  /// should a hardfork change the gas costs of relevant opcodes in callWithExactGas.
  uint16 internal constant GAS_FOR_CALL_EXACT_CHECK = 5_000;
  // @dev We limit return data to a selector plus 4 words. This is to avoid
  // malicious contracts from returning large amounts of data and causing
  // repeated out-of-gas scenarios.
  uint16 internal constant MAX_RET_BYTES = 4 + 4 * 32;

  /// @notice A collection of token price and gas price updates.
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct PriceUpdates {
    TokenPriceUpdate[] tokenPriceUpdates;
    GasPriceUpdate[] gasPriceUpdates;
  }

  /// @notice Token price in USD.
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct TokenPriceUpdate {
    address sourceToken; // Source token
    uint224 usdPerToken; // 1e18 USD per smallest unit of token
  }

  /// @notice Gas price for a given chain in USD, its value may contain tightly packed fields.
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct GasPriceUpdate {
    uint64 destChainSelector; // Destination chain selector
    uint224 usdPerUnitGas; // 1e18 USD per smallest unit (e.g. wei) of destination chain gas
  }

  /// @notice A timestamped uint224 value that can contain several tightly packed fields.
  struct TimestampedPackedUint224 {
    uint224 value; // ───────╮ Value in uint224, packed.
    uint32 timestamp; // ────╯ Timestamp of the most recent price update.
  }

  /// @dev Gas price is stored in 112-bit unsigned int. uint224 can pack 2 prices.
  /// When packing L1 and L2 gas prices, L1 gas price is left-shifted to the higher-order bits.
  /// Using uint8 type, which cannot be higher than other bit shift operands, to avoid shift operand type warning.
  uint8 public constant GAS_PRICE_BITS = 112;

  struct PoolUpdate {
    address token; // The IERC20 token address
    address pool; // The token pool address
  }

  /// @notice Report that is submitted by the execution DON at the execution phase.
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct ExecutionReport {
    EVM2EVMMessage[] messages;
    // Contains a bytes array for each message, each inner bytes array contains bytes per transferred token
    bytes[][] offchainTokenData;
    bytes32[] proofs;
    uint256 proofFlagBits;
  }

  /// @notice The cross chain message that gets committed to EVM chains.
  /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers.
  struct EVM2EVMMessage {
    uint64 sourceChainSelector; // ─────────╮ the chain selector of the source chain, note: not chainId
    address sender; // ─────────────────────╯ sender address on the source chain
    address receiver; // ───────────────────╮ receiver address on the destination chain
    uint64 sequenceNumber; // ──────────────╯ sequence number, not unique across lanes
    uint256 gasLimit; //                      user supplied maximum gas amount available for dest chain execution
    bool strict; // ────────────────────────╮ DEPRECATED
    uint64 nonce; //                        │ nonce for this lane for this sender, not unique across senders/lanes
    address feeToken; // ───────────────────╯ fee token
    uint256 feeTokenAmount; //                fee token amount
    bytes data; //                            arbitrary data payload supplied by the message sender
    Client.EVMTokenAmount[] tokenAmounts; //  array of tokens and amounts to transfer
    bytes[] sourceTokenData; //               array of token pool return values, one per token
    bytes32 messageId; //                     a hash of the message data
  }

  /// @dev EVM2EVMMessage struct has 13 fields, including 3 variable arrays.
  /// Each variable array takes 1 more slot to store its length.
  /// When abi encoded, excluding array contents,
  /// EVM2EVMMessage takes up a fixed number of 16 lots, 32 bytes each.
  /// For structs that contain arrays, 1 more slot is added to the front, reaching a total of 17.
  uint256 public constant MESSAGE_FIXED_BYTES = 32 * 17;

  /// @dev Each token transfer adds 1 EVMTokenAmount and 1 bytes.
  /// When abiEncoded, each EVMTokenAmount takes 2 slots, each bytes takes 2 slots, excl bytes contents
  uint256 public constant MESSAGE_FIXED_BYTES_PER_TOKEN = 32 * 4;

  function _toAny2EVMMessage(
    EVM2EVMMessage memory original,
    Client.EVMTokenAmount[] memory destTokenAmounts
  ) internal pure returns (Client.Any2EVMMessage memory message) {
    message = Client.Any2EVMMessage({
      messageId: original.messageId,
      sourceChainSelector: original.sourceChainSelector,
      sender: abi.encode(original.sender),
      data: original.data,
      destTokenAmounts: destTokenAmounts
    });
  }

  bytes32 internal constant EVM_2_EVM_MESSAGE_HASH = keccak256("EVM2EVMMessageHashV2");

  function _hash(EVM2EVMMessage memory original, bytes32 metadataHash) internal pure returns (bytes32) {
    // Fixed-size message fields are included in nested hash to reduce stack pressure.
    // This hashing scheme is also used by RMN. If changing it, please notify the RMN maintainers.
    return
      keccak256(
        abi.encode(
          MerkleMultiProof.LEAF_DOMAIN_SEPARATOR,
          metadataHash,
          keccak256(
            abi.encode(
              original.sender,
              original.receiver,
              original.sequenceNumber,
              original.gasLimit,
              original.strict,
              original.nonce,
              original.feeToken,
              original.feeTokenAmount
            )
          ),
          keccak256(original.data),
          keccak256(abi.encode(original.tokenAmounts)),
          keccak256(abi.encode(original.sourceTokenData))
        )
      );
  }

  /// @notice Enum listing the possible message execution states within
  /// the offRamp contract.
  /// UNTOUCHED never executed
  /// IN_PROGRESS currently being executed, used a replay protection
  /// SUCCESS successfully executed. End state
  /// FAILURE unsuccessfully executed, manual execution is now enabled.
  /// @dev RMN depends on this enum, if changing, please notify the RMN maintainers.
  enum MessageExecutionState {
    UNTOUCHED,
    IN_PROGRESS,
    SUCCESS,
    FAILURE
  }
}

File 11 of 23 : CallWithExactGas.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice This library contains various callWithExactGas functions. All of them are
/// safe from gas bomb attacks.
/// @dev There is code duplication in this library. This is done to not leave the assembly
/// the blocks.
library CallWithExactGas {
  error NoContract();
  error NoGasForCallExactCheck();
  error NotEnoughGasForCall();

  bytes4 internal constant NO_CONTRACT_SIG = 0x0c3b563c;
  bytes4 internal constant NO_GAS_FOR_CALL_EXACT_CHECK_SIG = 0xafa32a2c;
  bytes4 internal constant NOT_ENOUGH_GAS_FOR_CALL_SIG = 0x37c3be29;

  /// @notice calls target address with exactly gasAmount gas and payload as calldata.
  /// Accounts for gasForCallExactCheck gas that will be used by this function. Will revert
  /// if the target is not a contact. Will revert when there is not enough gas to call the
  /// target with gasAmount gas.
  /// @dev Ignores the return data, which makes it immune to gas bomb attacks.
  /// @return success whether the call succeeded
  function _callWithExactGas(
    bytes memory payload,
    address target,
    uint256 gasLimit,
    uint16 gasForCallExactCheck
  ) internal returns (bool success) {
    assembly {
      // solidity calls check that a contract actually exists at the destination, so we do the same
      // Note we do this check prior to measuring gas so gasForCallExactCheck (our "cushion")
      // doesn't need to account for it.
      if iszero(extcodesize(target)) {
        mstore(0x0, NO_CONTRACT_SIG)
        revert(0x0, 0x4)
      }

      let g := gas()
      // Compute g -= gasForCallExactCheck and check for underflow
      // The gas actually passed to the callee is _min(gasAmount, 63//64*gas available).
      // We want to ensure that we revert if gasAmount >  63//64*gas available
      // as we do not want to provide them with less, however that check itself costs
      // gas. gasForCallExactCheck ensures we have at least enough gas to be able
      // to revert if gasAmount >  63//64*gas available.
      if lt(g, gasForCallExactCheck) {
        mstore(0x0, NO_GAS_FOR_CALL_EXACT_CHECK_SIG)
        revert(0x0, 0x4)
      }
      g := sub(g, gasForCallExactCheck)
      // if g - g//64 <= gasAmount, revert. We subtract g//64 because of EIP-150
      if iszero(gt(sub(g, div(g, 64)), gasLimit)) {
        mstore(0x0, NOT_ENOUGH_GAS_FOR_CALL_SIG)
        revert(0x0, 0x4)
      }

      // call and return whether we succeeded. ignore return data
      // call(gas,addr,value,argsOffset,argsLength,retOffset,retLength)
      success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0)
    }
    return success;
  }

  /// @notice calls target address with exactly gasAmount gas and payload as calldata.
  /// Account for gasForCallExactCheck gas that will be used by this function. Will revert
  /// if the target is not a contact. Will revert when there is not enough gas to call the
  /// target with gasAmount gas.
  /// @dev Caps the return data length, which makes it immune to gas bomb attacks.
  /// @dev Return data cap logic borrowed from
  /// https://github.com/nomad-xyz/ExcessivelySafeCall/blob/main/src/ExcessivelySafeCall.sol.
  /// @return success whether the call succeeded
  /// @return retData the return data from the call, capped at maxReturnBytes bytes
  /// @return gasUsed the gas used by the external call. Does not include the overhead of this function.
  function _callWithExactGasSafeReturnData(
    bytes memory payload,
    address target,
    uint256 gasLimit,
    uint16 gasForCallExactCheck,
    uint16 maxReturnBytes
  ) internal returns (bool success, bytes memory retData, uint256 gasUsed) {
    // allocate retData memory ahead of time
    retData = new bytes(maxReturnBytes);

    assembly {
      // solidity calls check that a contract actually exists at the destination, so we do the same
      // Note we do this check prior to measuring gas so gasForCallExactCheck (our "cushion")
      // doesn't need to account for it.
      if iszero(extcodesize(target)) {
        mstore(0x0, NO_CONTRACT_SIG)
        revert(0x0, 0x4)
      }

      let g := gas()
      // Compute g -= gasForCallExactCheck and check for underflow
      // The gas actually passed to the callee is _min(gasAmount, 63//64*gas available).
      // We want to ensure that we revert if gasAmount >  63//64*gas available
      // as we do not want to provide them with less, however that check itself costs
      // gas. gasForCallExactCheck ensures we have at least enough gas to be able
      // to revert if gasAmount >  63//64*gas available.
      if lt(g, gasForCallExactCheck) {
        mstore(0x0, NO_GAS_FOR_CALL_EXACT_CHECK_SIG)
        revert(0x0, 0x4)
      }
      g := sub(g, gasForCallExactCheck)
      // if g - g//64 <= gasAmount, revert. We subtract g//64 because of EIP-150
      if iszero(gt(sub(g, div(g, 64)), gasLimit)) {
        mstore(0x0, NOT_ENOUGH_GAS_FOR_CALL_SIG)
        revert(0x0, 0x4)
      }

      // We save the gas before the call so we can calculate how much gas the call used
      let gasBeforeCall := gas()
      // call and return whether we succeeded. ignore return data
      // call(gas,addr,value,argsOffset,argsLength,retOffset,retLength)
      success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0)
      gasUsed := sub(gasBeforeCall, gas())

      // limit our copy to maxReturnBytes bytes
      let toCopy := returndatasize()
      if gt(toCopy, maxReturnBytes) {
        toCopy := maxReturnBytes
      }
      // Store the length of the copied bytes
      mstore(retData, toCopy)
      // copy the bytes from retData[0:_toCopy]
      returndatacopy(add(retData, 0x20), 0x0, toCopy)
    }
    return (success, retData, gasUsed);
  }

  /// @notice Calls target address with exactly gasAmount gas and payload as calldata
  /// or reverts if at least gasLimit gas is not available.
  /// @dev Does not check if target is a contract. If it is not a contract, the low-level
  /// call will still be made and it will succeed.
  /// @dev Ignores the return data, which makes it immune to gas bomb attacks.
  /// @return success whether the call succeeded
  /// @return sufficientGas Whether there was enough gas to make the call
  function _callWithExactGasEvenIfTargetIsNoContract(
    bytes memory payload,
    address target,
    uint256 gasLimit,
    uint16 gasForCallExactCheck
  ) internal returns (bool success, bool sufficientGas) {
    assembly {
      let g := gas()
      // Compute g -= CALL_WITH_EXACT_GAS_CUSHION and check for underflow. We
      // need the cushion since the logic following the above call to gas also
      // costs gas which we cannot account for exactly. So cushion is a
      // conservative upper bound for the cost of this logic.
      if iszero(lt(g, gasForCallExactCheck)) {
        g := sub(g, gasForCallExactCheck)
        // If g - g//64 <= gasAmount, we don't have enough gas. We subtract g//64 because of EIP-150.
        if gt(sub(g, div(g, 64)), gasLimit) {
          // Call and ignore success/return data. Note that we did not check
          // whether a contract actually exists at the target address.
          success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0)
          sufficientGas := true
        }
      }
    }
    return (success, sufficientGas);
  }
}

File 12 of 23 : OwnerIsCreator.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {ConfirmedOwner} from "./ConfirmedOwner.sol";

/// @title The OwnerIsCreator contract
/// @notice A contract with helpers for basic contract ownership.
contract OwnerIsCreator is ConfirmedOwner {
  constructor() ConfirmedOwner(msg.sender) {}
}

File 13 of 23 : EnumerableSet.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
  // To implement this library for multiple types with as little code
  // repetition as possible, we write it in terms of a generic Set type with
  // bytes32 values.
  // The Set implementation uses private functions, and user-facing
  // implementations (such as AddressSet) are just wrappers around the
  // underlying Set.
  // This means that we can only create new EnumerableSets for types that fit
  // in bytes32.

  struct Set {
    // Storage of set values
    bytes32[] _values;
    // Position of the value in the `values` array, plus 1 because index 0
    // means a value is not in the set.
    mapping(bytes32 => uint256) _indexes;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function _add(Set storage set, bytes32 value) private returns (bool) {
    if (!_contains(set, value)) {
      set._values.push(value);
      // The value is stored at length-1, but we add 1 to all indexes
      // and use 0 as a sentinel value
      set._indexes[value] = set._values.length;
      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function _remove(Set storage set, bytes32 value) private returns (bool) {
    // We read and store the value's index to prevent multiple reads from the same storage slot
    uint256 valueIndex = set._indexes[value];

    if (valueIndex != 0) {
      // Equivalent to contains(set, value)
      // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
      // the array, and then remove the last element (sometimes called as 'swap and pop').
      // This modifies the order of the array, as noted in {at}.

      uint256 toDeleteIndex = valueIndex - 1;
      uint256 lastIndex = set._values.length - 1;

      if (lastIndex != toDeleteIndex) {
        bytes32 lastValue = set._values[lastIndex];

        // Move the last value to the index where the value to delete is
        set._values[toDeleteIndex] = lastValue;
        // Update the index for the moved value
        set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
      }

      // Delete the slot where the moved value was stored
      set._values.pop();

      // Delete the index for the deleted slot
      delete set._indexes[value];

      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function _contains(Set storage set, bytes32 value) private view returns (bool) {
    return set._indexes[value] != 0;
  }

  /**
   * @dev Returns the number of values on the set. O(1).
   */
  function _length(Set storage set) private view returns (uint256) {
    return set._values.length;
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function _at(Set storage set, uint256 index) private view returns (bytes32) {
    return set._values[index];
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function _values(Set storage set) private view returns (bytes32[] memory) {
    return set._values;
  }

  // Bytes32Set

  struct Bytes32Set {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
    return _add(set._inner, value);
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
    return _remove(set._inner, value);
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
    return _contains(set._inner, value);
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(Bytes32Set storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
    return _at(set._inner, index);
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
    bytes32[] memory store = _values(set._inner);
    bytes32[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }

  // AddressSet

  struct AddressSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(AddressSet storage set, address value) internal returns (bool) {
    return _add(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(AddressSet storage set, address value) internal returns (bool) {
    return _remove(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(AddressSet storage set, address value) internal view returns (bool) {
    return _contains(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(AddressSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(AddressSet storage set, uint256 index) internal view returns (address) {
    return address(uint160(uint256(_at(set._inner, index))));
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(AddressSet storage set) internal view returns (address[] memory) {
    bytes32[] memory store = _values(set._inner);
    address[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }

  // UintSet

  struct UintSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(UintSet storage set, uint256 value) internal returns (bool) {
    return _add(set._inner, bytes32(value));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(UintSet storage set, uint256 value) internal returns (bool) {
    return _remove(set._inner, bytes32(value));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(UintSet storage set, uint256 value) internal view returns (bool) {
    return _contains(set._inner, bytes32(value));
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(UintSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(UintSet storage set, uint256 index) internal view returns (uint256) {
    return uint256(_at(set._inner, index));
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(UintSet storage set) internal view returns (uint256[] memory) {
    bytes32[] memory store = _values(set._inner);
    uint256[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }
}

File 14 of 23 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
  using Address for address;

  function safeTransfer(IERC20 token, address to, uint256 value) internal {
    _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
  }

  function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
    _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
  }

  /**
   * @dev Deprecated. This function has issues similar to the ones found in
   * {IERC20-approve}, and its usage is discouraged.
   *
   * Whenever possible, use {safeIncreaseAllowance} and
   * {safeDecreaseAllowance} instead.
   */
  function safeApprove(IERC20 token, address spender, uint256 value) internal {
    // safeApprove should only be called when setting an initial allowance,
    // or when resetting it to zero. To increase and decrease it, use
    // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
    require(
      (value == 0) || (token.allowance(address(this), spender) == 0),
      "SafeERC20: approve from non-zero to non-zero allowance"
    );
    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
  }

  function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
    uint256 newAllowance = token.allowance(address(this), spender) + value;
    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
  }

  function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
    unchecked {
      uint256 oldAllowance = token.allowance(address(this), spender);
      require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
      uint256 newAllowance = oldAllowance - value;
      _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }
  }

  function safePermit(
    IERC20Permit token,
    address owner,
    address spender,
    uint256 value,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) internal {
    uint256 nonceBefore = token.nonces(owner);
    token.permit(owner, spender, value, deadline, v, r, s);
    uint256 nonceAfter = token.nonces(owner);
    require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
  }

  /**
   * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
   * on the return value: the return value is optional (but if data is returned, it must not be false).
   * @param token The token targeted by the call.
   * @param data The call data (encoded using abi.encode or one of its variants).
   */
  function _callOptionalReturn(IERC20 token, bytes memory data) private {
    // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
    // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
    // the target address contains contract code and also asserts for success in the low-level call.

    bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
    if (returndata.length > 0) {
      // Return data is optional
      require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }
  }
}

File 15 of 23 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
  /**
   * @dev Emitted when `value` tokens are moved from one account (`from`) to
   * another (`to`).
   *
   * Note that `value` may be zero.
   */
  event Transfer(address indexed from, address indexed to, uint256 value);

  /**
   * @dev Emitted when the allowance of a `spender` for an `owner` is set by
   * a call to {approve}. `value` is the new allowance.
   */
  event Approval(address indexed owner, address indexed spender, uint256 value);

  /**
   * @dev Returns the amount of tokens in existence.
   */
  function totalSupply() external view returns (uint256);

  /**
   * @dev Returns the amount of tokens owned by `account`.
   */
  function balanceOf(address account) external view returns (uint256);

  /**
   * @dev Moves `amount` tokens from the caller's account to `to`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address to, uint256 amount) external returns (bool);

  /**
   * @dev Returns the remaining number of tokens that `spender` will be
   * allowed to spend on behalf of `owner` through {transferFrom}. This is
   * zero by default.
   *
   * This value changes when {approve} or {transferFrom} are called.
   */
  function allowance(address owner, address spender) external view returns (uint256);

  /**
   * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * IMPORTANT: Beware that changing an allowance with this method brings the risk
   * that someone may use both the old and the new allowance by unfortunate
   * transaction ordering. One possible solution to mitigate this race
   * condition is to first reduce the spender's allowance to 0 and set the
   * desired value afterwards:
   * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
   *
   * Emits an {Approval} event.
   */
  function approve(address spender, uint256 amount) external returns (bool);

  /**
   * @dev Moves `amount` tokens from `from` to `to` using the
   * allowance mechanism. `amount` is then deducted from the caller's
   * allowance.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

File 16 of 23 : IEVM2AnyOnRampClient.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IPool} from "./pools/IPool.sol";

import {Client} from "../libraries/Client.sol";

import {IERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";

interface IEVM2AnyOnRampClient {
  /// @notice Get the fee for a given ccip message
  /// @param destChainSelector The destination chain selector
  /// @param message The message to calculate the cost for
  /// @return fee The calculated fee
  function getFee(uint64 destChainSelector, Client.EVM2AnyMessage calldata message) external view returns (uint256 fee);

  /// @notice Get the pool for a specific token
  /// @param destChainSelector The destination chain selector
  /// @param sourceToken The source chain token to get the pool for
  /// @return pool Token pool
  function getPoolBySourceToken(uint64 destChainSelector, IERC20 sourceToken) external view returns (IPool);

  /// @notice Gets a list of all supported source chain tokens.
  /// @param destChainSelector The destination chain selector
  /// @return tokens The addresses of all tokens that this onRamp supports the given destination chain
  function getSupportedTokens(uint64 destChainSelector) external view returns (address[] memory tokens);

  /// @notice Send a message to the remote chain
  /// @dev only callable by the Router
  /// @dev approve() must have already been called on the token using the this ramp address as the spender.
  /// @dev if the contract is paused, this function will revert.
  /// @param destChainSelector The destination chain selector
  /// @param message Message struct to send
  /// @param feeTokenAmount Amount of fee tokens for payment
  /// @param originalSender The original initiator of the CCIP request
  function forwardFromRouter(
    uint64 destChainSelector,
    Client.EVM2AnyMessage memory message,
    uint256 feeTokenAmount,
    address originalSender
  ) external returns (bytes32);
}

File 17 of 23 : MerkleMultiProof.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

library MerkleMultiProof {
  /// @notice Leaf domain separator, should be used as the first 32 bytes of a leaf's preimage.
  bytes32 internal constant LEAF_DOMAIN_SEPARATOR = 0x0000000000000000000000000000000000000000000000000000000000000000;
  /// @notice Internal domain separator, should be used as the first 32 bytes of an internal node's preiimage.
  bytes32 internal constant INTERNAL_DOMAIN_SEPARATOR =
    0x0000000000000000000000000000000000000000000000000000000000000001;

  uint256 internal constant MAX_NUM_HASHES = 256;

  error InvalidProof();
  error LeavesCannotBeEmpty();

  /// @notice Computes the root based on provided pre-hashed leaf nodes in
  /// leaves, internal nodes in proofs, and using proofFlagBits' i-th bit to
  /// determine if an element of proofs or one of the previously computed leafs
  /// or internal nodes will be used for the i-th hash.
  /// @param leaves Should be pre-hashed and the first 32 bytes of a leaf's
  /// preimage should match LEAF_DOMAIN_SEPARATOR.
  /// @param proofs The hashes to be used instead of a leaf hash when the proofFlagBits
  ///  indicates a proof should be used.
  /// @param proofFlagBits A single uint256 of which each bit indicates whether a leaf or
  ///  a proof needs to be used in a hash operation.
  /// @dev the maximum number of hash operations it set to 256. Any input that would require
  ///  more than 256 hashes to get to a root will revert.
  /// @dev For given input `leaves` = [a,b,c] `proofs` = [D] and `proofFlagBits` = 5
  ///     totalHashes = 3 + 1 - 1 = 3
  ///  ** round 1 **
  ///    proofFlagBits = (5 >> 0) & 1 = true
  ///    hashes[0] = hashPair(a, b)
  ///    (leafPos, hashPos, proofPos) = (2, 0, 0);
  ///
  ///  ** round 2 **
  ///    proofFlagBits = (5 >> 1) & 1 = false
  ///    hashes[1] = hashPair(D, c)
  ///    (leafPos, hashPos, proofPos) = (3, 0, 1);
  ///
  ///  ** round 3 **
  ///    proofFlagBits = (5 >> 2) & 1 = true
  ///    hashes[2] = hashPair(hashes[0], hashes[1])
  ///    (leafPos, hashPos, proofPos) = (3, 2, 1);
  ///
  ///    i = 3 and no longer < totalHashes. The algorithm is done
  ///    return hashes[totalHashes - 1] = hashes[2]; the last hash we computed.
  // We mark this function as internal to force it to be inlined in contracts
  // that use it, but semantically it is public.
  // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore
  function merkleRoot(
    bytes32[] memory leaves,
    bytes32[] memory proofs,
    uint256 proofFlagBits
  ) internal pure returns (bytes32) {
    unchecked {
      uint256 leavesLen = leaves.length;
      uint256 proofsLen = proofs.length;
      if (leavesLen == 0) revert LeavesCannotBeEmpty();
      if (!(leavesLen <= MAX_NUM_HASHES + 1 && proofsLen <= MAX_NUM_HASHES + 1)) revert InvalidProof();
      uint256 totalHashes = leavesLen + proofsLen - 1;
      if (!(totalHashes <= MAX_NUM_HASHES)) revert InvalidProof();
      if (totalHashes == 0) {
        return leaves[0];
      }
      bytes32[] memory hashes = new bytes32[](totalHashes);
      (uint256 leafPos, uint256 hashPos, uint256 proofPos) = (0, 0, 0);

      for (uint256 i = 0; i < totalHashes; ++i) {
        // Checks if the bit flag signals the use of a supplied proof or a leaf/previous hash.
        bytes32 a;
        if (proofFlagBits & (1 << i) == (1 << i)) {
          // Use a leaf or a previously computed hash.
          if (leafPos < leavesLen) {
            a = leaves[leafPos++];
          } else {
            a = hashes[hashPos++];
          }
        } else {
          // Use a supplied proof.
          a = proofs[proofPos++];
        }

        // The second part of the hashed pair is never a proof as hashing two proofs would result in a
        // hash that can already be computed offchain.
        bytes32 b;
        if (leafPos < leavesLen) {
          b = leaves[leafPos++];
        } else {
          b = hashes[hashPos++];
        }

        if (!(hashPos <= i)) revert InvalidProof();

        hashes[i] = _hashPair(a, b);
      }
      if (!(hashPos == totalHashes - 1 && leafPos == leavesLen && proofPos == proofsLen)) revert InvalidProof();
      // Return the last hash.
      return hashes[totalHashes - 1];
    }
  }

  /// @notice Hashes two bytes32 objects in their given order, prepended by the
  /// INTERNAL_DOMAIN_SEPARATOR.
  function _hashInternalNode(bytes32 left, bytes32 right) private pure returns (bytes32 hash) {
    return keccak256(abi.encode(INTERNAL_DOMAIN_SEPARATOR, left, right));
  }

  /// @notice Hashes two bytes32 objects. The order is taken into account,
  /// using the lower value first.
  function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
    return a < b ? _hashInternalNode(a, b) : _hashInternalNode(b, a);
  }
}

File 18 of 23 : ConfirmedOwner.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {ConfirmedOwnerWithProposal} from "./ConfirmedOwnerWithProposal.sol";

/// @title The ConfirmedOwner contract
/// @notice A contract with helpers for basic contract ownership.
contract ConfirmedOwner is ConfirmedOwnerWithProposal {
  constructor(address newOwner) ConfirmedOwnerWithProposal(newOwner, address(0)) {}
}

File 19 of 23 : draft-IERC20Permit.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
  /**
   * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
   * given ``owner``'s signed approval.
   *
   * IMPORTANT: The same issues {IERC20-approve} has related to transaction
   * ordering also apply here.
   *
   * Emits an {Approval} event.
   *
   * Requirements:
   *
   * - `spender` cannot be the zero address.
   * - `deadline` must be a timestamp in the future.
   * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
   * over the EIP712-formatted function arguments.
   * - the signature must use ``owner``'s current nonce (see {nonces}).
   *
   * For more information on the signature format, see the
   * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
   * section].
   */
  function permit(
    address owner,
    address spender,
    uint256 value,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external;

  /**
   * @dev Returns the current nonce for `owner`. This value must be
   * included whenever a signature is generated for {permit}.
   *
   * Every successful call to {permit} increases ``owner``'s nonce by one. This
   * prevents a signature from being used multiple times.
   */
  function nonces(address owner) external view returns (uint256);

  /**
   * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
   */
  // solhint-disable-next-line func-name-mixedcase
  function DOMAIN_SEPARATOR() external view returns (bytes32);
}

File 20 of 23 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
  /**
   * @dev Returns true if `account` is a contract.
   *
   * [IMPORTANT]
   * ====
   * It is unsafe to assume that an address for which this function returns
   * false is an externally-owned account (EOA) and not a contract.
   *
   * Among others, `isContract` will return false for the following
   * types of addresses:
   *
   *  - an externally-owned account
   *  - a contract in construction
   *  - an address where a contract will be created
   *  - an address where a contract lived, but was destroyed
   * ====
   *
   * [IMPORTANT]
   * ====
   * You shouldn't rely on `isContract` to protect against flash loan attacks!
   *
   * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
   * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
   * constructor.
   * ====
   */
  function isContract(address account) internal view returns (bool) {
    // This method relies on extcodesize/address.code.length, which returns 0
    // for contracts in construction, since the code is only stored at the end
    // of the constructor execution.

    return account.code.length > 0;
  }

  /**
   * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
   * `recipient`, forwarding all available gas and reverting on errors.
   *
   * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
   * of certain opcodes, possibly making contracts go over the 2300 gas limit
   * imposed by `transfer`, making them unable to receive funds via
   * `transfer`. {sendValue} removes this limitation.
   *
   * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
   *
   * IMPORTANT: because control is transferred to `recipient`, care must be
   * taken to not create reentrancy vulnerabilities. Consider using
   * {ReentrancyGuard} or the
   * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
   */
  function sendValue(address payable recipient, uint256 amount) internal {
    require(address(this).balance >= amount, "Address: insufficient balance");

    (bool success, ) = recipient.call{value: amount}("");
    require(success, "Address: unable to send value, recipient may have reverted");
  }

  /**
   * @dev Performs a Solidity function call using a low level `call`. A
   * plain `call` is an unsafe replacement for a function call: use this
   * function instead.
   *
   * If `target` reverts with a revert reason, it is bubbled up by this
   * function (like regular Solidity function calls).
   *
   * Returns the raw returned data. To convert to the expected return value,
   * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
   *
   * Requirements:
   *
   * - `target` must be a contract.
   * - calling `target` with `data` must not revert.
   *
   * _Available since v3.1._
   */
  function functionCall(address target, bytes memory data) internal returns (bytes memory) {
    return functionCallWithValue(target, data, 0, "Address: low-level call failed");
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
   * `errorMessage` as a fallback revert reason when `target` reverts.
   *
   * _Available since v3.1._
   */
  function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
    return functionCallWithValue(target, data, 0, errorMessage);
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
   * but also transferring `value` wei to `target`.
   *
   * Requirements:
   *
   * - the calling contract must have an ETH balance of at least `value`.
   * - the called Solidity function must be `payable`.
   *
   * _Available since v3.1._
   */
  function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
    return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
  }

  /**
   * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
   * with `errorMessage` as a fallback revert reason when `target` reverts.
   *
   * _Available since v3.1._
   */
  function functionCallWithValue(
    address target,
    bytes memory data,
    uint256 value,
    string memory errorMessage
  ) internal returns (bytes memory) {
    require(address(this).balance >= value, "Address: insufficient balance for call");
    (bool success, bytes memory returndata) = target.call{value: value}(data);
    return verifyCallResultFromTarget(target, success, returndata, errorMessage);
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
   * but performing a static call.
   *
   * _Available since v3.3._
   */
  function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
    return functionStaticCall(target, data, "Address: low-level static call failed");
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
   * but performing a static call.
   *
   * _Available since v3.3._
   */
  function functionStaticCall(
    address target,
    bytes memory data,
    string memory errorMessage
  ) internal view returns (bytes memory) {
    (bool success, bytes memory returndata) = target.staticcall(data);
    return verifyCallResultFromTarget(target, success, returndata, errorMessage);
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
   * but performing a delegate call.
   *
   * _Available since v3.4._
   */
  function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
    return functionDelegateCall(target, data, "Address: low-level delegate call failed");
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
   * but performing a delegate call.
   *
   * _Available since v3.4._
   */
  function functionDelegateCall(
    address target,
    bytes memory data,
    string memory errorMessage
  ) internal returns (bytes memory) {
    (bool success, bytes memory returndata) = target.delegatecall(data);
    return verifyCallResultFromTarget(target, success, returndata, errorMessage);
  }

  /**
   * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
   * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
   *
   * _Available since v4.8._
   */
  function verifyCallResultFromTarget(
    address target,
    bool success,
    bytes memory returndata,
    string memory errorMessage
  ) internal view returns (bytes memory) {
    if (success) {
      if (returndata.length == 0) {
        // only check isContract if the call was successful and the return data is empty
        // otherwise we already know that it was a contract
        require(isContract(target), "Address: call to non-contract");
      }
      return returndata;
    } else {
      _revert(returndata, errorMessage);
    }
  }

  /**
   * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
   * revert reason or using the provided one.
   *
   * _Available since v4.3._
   */
  function verifyCallResult(
    bool success,
    bytes memory returndata,
    string memory errorMessage
  ) internal pure returns (bytes memory) {
    if (success) {
      return returndata;
    } else {
      _revert(returndata, errorMessage);
    }
  }

  function _revert(bytes memory returndata, string memory errorMessage) private pure {
    // Look for revert reason and bubble it up if present
    if (returndata.length > 0) {
      // The easiest way to bubble the revert reason is using memory via assembly
      /// @solidity memory-safe-assembly
      assembly {
        let returndata_size := mload(returndata)
        revert(add(32, returndata), returndata_size)
      }
    } else {
      revert(errorMessage);
    }
  }
}

File 21 of 23 : IPool.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "../../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";

// Shared public interface for multiple pool types.
// Each pool type handles a different child token model (lock/unlock, mint/burn.)
interface IPool {
  /// @notice Lock tokens into the pool or burn the tokens.
  /// @param originalSender Original sender of the tokens.
  /// @param receiver Receiver of the tokens on destination chain.
  /// @param amount Amount to lock or burn.
  /// @param destChainSelector Destination chain Id.
  /// @param extraArgs Additional data passed in by sender for lockOrBurn processing
  /// in custom pools on source chain.
  /// @return retData Optional field that contains bytes. Unused for now but already
  /// implemented to allow future upgrades while preserving the interface.
  function lockOrBurn(
    address originalSender,
    bytes calldata receiver,
    uint256 amount,
    uint64 destChainSelector,
    bytes calldata extraArgs
  ) external returns (bytes memory);

  /// @notice Releases or mints tokens to the receiver address.
  /// @param originalSender Original sender of the tokens.
  /// @param receiver Receiver of the tokens.
  /// @param amount Amount to release or mint.
  /// @param sourceChainSelector Source chain Id.
  /// @param extraData Additional data supplied offchain for releaseOrMint processing in
  /// custom pools on dest chain. This could be an attestation that was retrieved through a
  /// third party API.
  /// @dev offchainData can come from any untrusted source.
  function releaseOrMint(
    bytes memory originalSender,
    address receiver,
    uint256 amount,
    uint64 sourceChainSelector,
    bytes memory extraData
  ) external;

  /// @notice Gets the IERC20 token that this pool can lock or burn.
  /// @return token The IERC20 token representation.
  function getToken() external view returns (IERC20 token);
}

File 22 of 23 : ConfirmedOwnerWithProposal.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IOwnable} from "../interfaces/IOwnable.sol";

/// @title The ConfirmedOwner contract
/// @notice A contract with helpers for basic contract ownership.
contract ConfirmedOwnerWithProposal is IOwnable {
  address private s_owner;
  address private s_pendingOwner;

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    // solhint-disable-next-line custom-errors
    require(newOwner != address(0), "Cannot set owner to zero");

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /// @notice Allows an owner to begin transferring ownership to a new address.
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /// @notice Allows an ownership transfer to be completed by the recipient.
  function acceptOwnership() external override {
    // solhint-disable-next-line custom-errors
    require(msg.sender == s_pendingOwner, "Must be proposed owner");

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /// @notice Get the current owner
  function owner() public view override returns (address) {
    return s_owner;
  }

  /// @notice validate, transfer ownership, and emit relevant events
  function _transferOwnership(address to) private {
    // solhint-disable-next-line custom-errors
    require(to != msg.sender, "Cannot transfer to self");

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /// @notice validate access
  function _validateOwnership() internal view {
    // solhint-disable-next-line custom-errors
    require(msg.sender == s_owner, "Only callable by owner");
  }

  /// @notice Reverts if called by anyone other than the contract owner.
  modifier onlyOwner() {
    _validateOwnership();
    _;
  }
}

File 23 of 23 : IOwnable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IOwnable {
  function owner() external returns (address);

  function transferOwnership(address recipient) external;

  function acceptOwnership() external;
}

Settings
{
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    "forge-std/=foundry-lib/forge-std/src/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "hardhat/=node_modules/hardhat/",
    "@eth-optimism/=node_modules/@eth-optimism/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 26000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "none",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

Contract ABI

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Deployed Bytecode

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