MBLTDev15: Marius Racwitz, Realm
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This document discusses the challenges of building a Swift framework called Realm that provides object-oriented database functionality. It addresses how to interface Swift and C++, distribute the framework via CocoaPods and Carthage, generate API documentation, support multiple Swift versions, and set up continuous integration testing. Maintaining the framework across evolving Swift versions is an ongoing challenge.
MBLTDev15: Marius Racwitz, Realm
- 4. REALM > Object-oriented > Fully ACID transactions > Well-defined threading model > Native links > Zero-copy > Cross-Platform
- 8. HOW TO INTERFACE C++ FROM SWIFT?
- 11. CLANG MODULEMAP framework module Realm { umbrella header "Realm.h" export * module * { export * } explicit module Private { header "RLMArray_Private.h" header "RLMObject_Private.h" // … } }
- 12. FIND A VIABLE WAY TO DISTRIBUTE A FRAMEWORK WHICH VENDORS ANOTHER
- 14. ! APPSTORE
- 16. CARTHAGE EXPECTS ONLY 1 FRAMEWORK PER REPO
- 19. Pod::Spec.new do |s| s.name = 'Realm' # … s.module_map = 'Realm/module.modulemap' end Pod::Spec.new do |s| s.name = 'RealmSwift' # … s.dependency 'Realm', "= #{s.version}" end
- 20. ! READY TO SHIP
- 21. ! BUT WHAT ELSE IS NEEDED?
- 22. DOCS
- 23. API DOCS
- 24. APPLEDOC FOR OBJECTIVE-C /** Lorem ipsum dolor sit amet. @param bar Consectetur adipisicing elit. @return Sed do eiusmod tempor. */ func foo(bar: String) -> AnyObject { ... }
- 25. RESTRUCTURED TEXT (REST) UNTIL SWIFT 1.2 /** Lorem ipsum dolor sit amet. :param: bar Consectetur adipisicing elit. :returns: Sed do eiusmod tempor. */ func foo(bar: String) -> AnyObject { ... }
- 26. MARKDOWN FOR SWIFT 2.0 /** Lorem ipsum dolor sit amet. - parameter bar: Consectetur adipisicing elit. - returns: Sed do eiusmod tempor. */ func foo(bar: String) -> AnyObject { ... }
- 30. !
- 32. ☺
- 34. SWIFT IS EVOLVING FAST
- 35. IT'S HARD TO KEEP UP WITH THE PACE ! WHEN WRITING ACTUAL APPS
- 36. TO MANY OTHER THINGS TO DELIVER > Extensions > Watch Extensions > Watch Apps > 3D Touch > …
- 37. SWIFT 1.2 ! IS STILL RELEVANT
- 38. ! IN THE ROOM
- 39. CI
- 40. HOW TO SUPPORT MULTIPLE SWIFT VERSIONS AT ONCE?
- 41. MULTIPLE BRANCH MODEL > master > swift-1.2 > swift-2.1 > …
- 42. $ tree -L 2 | ! . !"" RealmSwift -> RealmSwift-swift2.0 !"" RealmSwift-swift1.2 # !"" Object.swift # !"" … # $"" Tests # !"" RealmSwift-swift2.0 # !"" Object.swift # !"" … # $"" Tests # !"" RealmSwift-swift2.1 -> RealmSwift-swift2.0 # !"" …
- 43. CI DOESN'T NEED TO STOP AT TESTS
- 45. pod lib lint
- 46. STYLEGUIDE
- 50. try! questions.map { try $0.answer() }