Plug-in architecture pattern with Swift

Talk at 11° CocoaHeads Fortaleza

Transcript

1. PLUG-IN ARCHITECTURE PATTERN WITH SWIFT 11° COCOAHEADS FORTALEZA
2. WHO AM I?
3. Bruno Macabeus macabeus
4. WHY SHOULD I USE PLUGIN ARCHITECTURE?
7. It's open! (๑>◡<๑) https://github.com/stalkr-io http://getstal.kr
8. HOW PLUGIN ARCHITECT WORK?
9. Also called as “microkernel architecture” Source: www.oreilly.com/ideas/software-architecture-patterns/page/4/microkernel-architecture
10. BRIEF EXAMPLE WITH PYTHON
17. pyCertificate/ main.py plugin/ Certificado.py - loads the plugins - base class Certificado, with abstract attributes
18. assinaturas/ plugin/ alynne.py edson.py certificado/ CertificadoEventoPalestrante.py CertificadoEventoOuvinte.py logo/ ifce.py
19. Going go to PyCharm
20. NOW… HOW TO MAKE IT WITH SWIFT?
21. HEY… ONE LITTLE ADVICE
22. WARNING Everything here is experiments!!
23. USEFUL but, it is…
24. MY ATTEMPTS - DYLIB - BUNDLES
25. ST 1 ATTEMPT DYNAMIC LIBRARIES
26. Dynamic libraries: a.k.a dynamic shared libraries, shared objects, or dynamically linked libraries O que por nesse slide???
27. App using static libraries Source: https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/OverviewOfDynamicLibraries.html
28. App using dynamic libraries Source: https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/OverviewOfDynamicLibraries.html
29. Create a new dylib in Swift
30. Use your dylib with Swift
31. Eeeeh! It’s work!!
32. NO It’s not work in iOS/ tvOS
33. I sent a e-mail for Apple Engineer support: I want to compile a dynamic library to use in my apple tv's application. My dylib is wrote with Swift. I tried (see "Steps to Reproduce" section), but I can't load my dylib neither at simulator nor at physical device. Then I received: Thank you for contacting Apple Developer Technical Support (DTS). Our engineers have reviewed your request and have concluded that there is no supported way to achieve the desired functionality given the currently shipping system configurations.
34. 2 ATTEMPT BUNDLES ND
35. Ohh! I found a Apple’s documentation with a suggestive name and, this documentation explain about “Bundle”… but… what is it?
36. Bundles provide a interface to encapsulate executable (dylib, for example) and the resources (xib, for example). Source: https://developer.apple.com/library/content/documentation/CoreFoundation/Conceptual/CFBundles/AboutBundles/AboutBundles.html
37. Somebody make this things to iOS? Or with Swift? Yes! Somebody make it work in iOS! So so… Somebody make it work with Swift + Objc-C
38. Then… I created a Proof of Concept purely in Swift with a app to iOS, to send a AppStore
39. Eeeeh! It’s work!!
40. NO I can’t send it to AppStore
41. For some reasons, I can’t send it to AppStore - problem in certificate in bundle - size of app - and others random problems
42. BUT… THE MAJOR PROBLEM IS…
45. OTHER EXPERIMENTS - SCRIPT - LLVM C API
46. 1 EXPERIMENT SCRIPT ST
47. Maybe another strategy is using not compiled code, but yes a script to download and execute in run time!
48. With JS, we have a proof of concept to run JS in AppleTV
49. 2 EXPERIMENT LLVM C API ND
50. What is LLVM? Well… LLVM is “Low Level Virtual Machine”, and it’s not only one virtual machine Source: http://aosabook.org/en/llvm.html
51. Example of C code to LLVM IR C LLVM IR Source: http://aosabook.org/en/llvm.html
52. Then, Alex Desinov created a example of using LLVM C API with Swift
53. WORKAROUND…
54. Well… We can use a simple workaround… We could make the app 100% open source and, if the user wants create a plugin, he will need create a new file in the project. Some tools, like Fastlane, can help
55. Create a reflexive code can help… READ IT IN MY BLOG!! macalogs.com.br
56. SOME OTHERS THINGS…
57. Like Apple kill the dlopen in NSUserDefault, him can kill others solutions that appear. Apple has been closing any way to create a app can execute arbitrary code, even with respondsToSelector and performSelector
58. ABI
59. LITERATURE
60. http://aosabook.org/en/
61. https://www.oreilly.com/ideas/software-architecture-patterns