dexorder

lib_openzeppelin_contracts/certora/harnesses/DoubleEndedQueueHarness.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import {DoubleEndedQueue} from "../patched/utils/structs/DoubleEndedQueue.sol";
+
+contract DoubleEndedQueueHarness {
+    using DoubleEndedQueue for DoubleEndedQueue.Bytes32Deque;
+
+    DoubleEndedQueue.Bytes32Deque private _deque;
+
+    function pushFront(bytes32 value) external {
+        _deque.pushFront(value);
+    }
+
+    function pushBack(bytes32 value) external {
+        _deque.pushBack(value);
+    }
+
+    function popFront() external returns (bytes32 value) {
+        return _deque.popFront();
+    }
+
+    function popBack() external returns (bytes32 value) {
+        return _deque.popBack();
+    }
+
+    function clear() external {
+        _deque.clear();
+    }
+
+    function begin() external view returns (uint128) {
+        return _deque._begin;
+    }
+
+    function end() external view returns (uint128) {
+        return _deque._end;
+    }
+
+    function length() external view returns (uint256) {
+        return _deque.length();
+    }
+
+    function empty() external view returns (bool) {
+        return _deque.empty();
+    }
+
+    function front() external view returns (bytes32 value) {
+        return _deque.front();
+    }
+
+    function back() external view returns (bytes32 value) {
+        return _deque.back();
+    }
+
+    function at_(uint256 index) external view returns (bytes32 value) {
+        return _deque.at(index);
+    }
+}