Just Enough Objective-C

on YouTube ↗19m

" summary

Claims that “pure Swift” apps still hit Objective‑C everywhere supported by a demo app (two source files) that presents an alert and then logs over 150,000 objc_msgSend calls. Tools shown: setting an objc_msgSend breakpoint, enabling always show disassembly, using bridging headers and performSelector to call private APIs, and using lldb regex breakpoints to find eight candidate symbols. Result: the tricks reveal Objective‑C dispatch under Swift and let debugging and private‑API probes succeed.

AI-written summary · about

" chapters (11)

1. 0:00Intro
2. 3:06ObjectiveC
3. 3:37ObjectiveC Message Send
4. 6:07Swift vs ObjectiveC
5. 7:18Apples Swift Compiler
6. 7:48ObjectiveC Wrapper
7. 8:24ObjectiveC Interfacing
8. 9:45Method Selectors
9. 12:18Debugging
10. 14:22Bridging
11. 18:08Conclusion

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