A disciplined, evidence-first workflow for autonomous code agents
The Cursor Operational Doctrine (file core.md) encodes the agent’s always-on principles—reconnaissance before action, empirical validation over conjecture, strict command-execution hygiene, and zero-assumption stewardship.
| import XCTest | |
| extension XCTestCase { | |
| func assertDeallocated( | |
| _ instance: AnyObject, | |
| file: StaticString = #filePath, | |
| line: UInt = #line | |
| ) { | |
| addTeardownBlock { [weak instance] in | |
| XCTAssertNil( |
| import UIKit | |
| import Combine | |
| protocol UIControlPublishable: UIControl {} | |
| extension UIControlPublishable { | |
| func publisher(for event: UIControl.Event) -> UIControl.InteractionPublisher<Self> { | |
| return InteractionPublisher(control: self, event: event) |
| // I re-typed what I saw in reference 3 below, | |
| // went to Liked videos page on YouTube[1] while logged in, | |
| // pasted that into browser dev tools console (Google Chrome Version 97.0.4692.99 (Official Build) (x86_64)), | |
| // pressed enter, and it seemed to do its thing, for the most part | |
| // (when I refreshed the page, there was still 1 video remaining). | |
| // [1] as of 2022-01-23 that’s at https://www.youtube.com/playlist?list=LL | |
| // context: https://twitter.com/QiaochuYuan/status/1485164256970510340 | |
| // references: |
This breakpoint provides an easy way to track view controller deinitialization (deallocation) in UIKit-based applications. This can help finding memory leaks caused by retain cycles preventing view controllers from being deinitialized when dismissed or popped.
From Cédric Luthi's tweet in 2017:
Useful Xcode breakpoint. When you dismiss a controller and you don’t hear the pop sound (or see the log), you probably have a retain cycle.
| import SwiftUI | |
| class KeyboardAvoidingHostingController<Content>: UIHostingController<Content> where Content: View { | |
| override func viewDidAppear(_ animated: Bool) { | |
| super.viewDidAppear(animated) | |
| NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillChangeFrame), name: UIResponder.keyboardWillChangeFrameNotification, object: nil) | |
| } | |
| override func viewDidDisappear(_ animated: Bool) { | |
| super.viewDidDisappear(animated) |
| let crtBase64 = "..." | |
| if let certificateData = Data(base64Encoded: crtBase64, options: []), | |
| let certificate = SecCertificateCreateWithData(nil, certificateData as CFData) { | |
| // use certificate to initialize PinnedCertificatesTrustEvaluator, or ... | |
| var trust: SecTrust? | |
| let policy = SecPolicyCreateBasicX509() | |
| let status = SecTrustCreateWithCertificates(certificate, policy, &trust) | |
| import UIKit | |
| /// An enum that defines an output to be passed on from | |
| /// a child to it's parents over the responders Chain | |
| public protocol CoordinatorOutput {} | |
| /// An enum that defines an input to be passed on from | |
| /// the parent to it's children | |
| public protocol CoordinatorInput {} |
| import Foundation | |
| /// Defines the CacheService errors | |
| /// | |
| /// - encryptionFailed: the key encription has failed | |
| /// - couldNotSaveData: the data could not be saved | |
| /// - couldNotLoadData: the data could not be loaded | |
| /// - raw: some system error, not previously defined | |
| public enum CacheServiceError: Error { | |
| case encryptionFailed |
| function triggerKeyboardEvent(el, keyCode, type) | |
| { | |
| var eventObj = document.createEventObject ? | |
| document.createEventObject() : document.createEvent("Events"); | |
| if(eventObj.initEvent){ | |
| eventObj.initEvent(type, true, true); | |
| } | |
| eventObj.keyCode = keyCode; |