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Contract

0xB0140DBA52403AdA53A1aa2efb52fc185FcC2092

Balance: 0 SOMI
Transactions sent: 1
Type: Contract · 403 bytes of code

PauseLib Verified

Compiler: v0.8.22+commit.4fc1097e
Language: solidity
Optimization: Yes, 200 runs
EVM version: shanghai
License: none
Verified: 2026-09-18

contracts/libraries/PauseLib.sol

and 1 more files

solidity

pragma solidity ^0.8.0;

import {PauseModule} from "contracts/modules/PauseModule.sol";

/// @notice Pause state transitions.
/// @dev Linked library. Runs via delegatecall against PauseModule's namespaced storage.
library PauseLib {
    /// @dev Must equal PauseModule.PauseStorageLocation.
    bytes32 private constant PauseStorageLocation = 0x242e96562e738afaa26e2a4eb34bb6ab09c26cd11226ccf8fbc02da32756d300;

    function _getPauseStorage() private pure returns (PauseModule.PauseStorage storage $) {
        assembly {
            $.slot := PauseStorageLocation
        }
    }

    function pause() external {
        PauseModule.PauseStorage storage $ = _getPauseStorage();
        if ($.isPaused) revert PauseModule.IsPaused();
        $.isPaused = true;
        emit PauseModule.Paused();
    }

    function unpause() external {
        PauseModule.PauseStorage storage $ = _getPauseStorage();
        if (!$.isPaused) revert PauseModule.NotPaused();
        $.isPaused = false;
        emit PauseModule.Unpaused();
    }
}

Other files

contracts/modules/PauseModule.sol

pragma solidity ^0.8.0;
import {PauseLib} from "contracts/libraries/PauseLib.sol";

/*
  * @title PauseModule
  * @dev Contract module that allows pausing and unpausing of the contract.
  * @dev State transitions are delegated to `PauseLib`.
*/
abstract contract PauseModule {

    struct PauseStorage {
        bool isPaused;
    }

    /// @dev keccak256(abi.encode(uint256(keccak256("frax.storage.PauseModule")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PauseStorageLocation = 0x242e96562e738afaa26e2a4eb34bb6ab09c26cd11226ccf8fbc02da32756d300;

    function _getPauseStorage() private pure returns (PauseStorage storage $) {
        assembly {
            $.slot := PauseStorageLocation
        }
    }

    function _pause() internal virtual {
        PauseLib.pause();
    }

    function _unpause() internal virtual {
        PauseLib.unpause();
    }

    /// @notice Return whether the contract is paused
    /// @return bool True if paused, false otherwise
    function isPaused() public view virtual returns (bool) {
        PauseStorage storage $ = _getPauseStorage();
        return $.isPaused;
    }

    /* ========== EVENTS ========== */
    /// @notice Event Emitted when the contract is paused
    event Paused();

    /// @notice Event Emitted when the contract is unpaused
    event Unpaused();

    /* ========== ERRORS ========== */
    error IsPaused();
    error NotPaused();
}

ABI · 4 entries

json

[
  {
    "inputs": [],
    "name": "IsPaused",
    "type": "error"
  },
  {
    "inputs": [],
    "name": "NotPaused",
    "type": "error"
  },
  {
    "anonymous": false,
    "inputs": [],
    "name": "Paused",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [],
    "name": "Unpaused",
    "type": "event"
  }
]