RSC_NonceManager

{{
  "language": "Solidity",
  "sources": {
    "src/RSC_NonceManager.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import {Ownable} from "./utils/Ownable.sol";

/// @title RSC_NonceManager
/// @notice Global (srcChain, channel, messageType) nonce guard
contract RSC_NonceManager is Ownable {
    // key = keccak256(abi.encode(srcChain, channel, msgType))
    mapping(bytes32 => uint256) public nonce;
    event Consumed(bytes32 indexed key, uint256 next);

    function consume(uint32 srcChain, bytes32 channel, bytes32 msgType, uint256 expected) external onlyOwner {
        bytes32 k = keccak256(abi.encode(srcChain, channel, msgType));
        require(nonce[k] == expected, "bad-order");
        nonce[k] = expected + 1;
        emit Consumed(k, nonce[k]);
    }
}


"
    },
    "src/utils/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

/// @title Minimal Ownable utility
abstract contract Ownable {
    error NotOwner();

    address public owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        owner = msg.sender;
        emit OwnershipTransferred(address(0), msg.sender);
    }

    modifier onlyOwner() {
        if (msg.sender != owner) revert NotOwner();
        _;
    }

    function transferOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "Owner=zero");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }
}


"
    }
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      "reactive-lib/=lib/reactive-lib/src/"
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    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
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    "evmVersion": "cancun",
    "viaIR": true
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}}