C syntax - Wikipedia
Add '@objcMembers' attribute to all class declarations – Swiftify
objc not working as explained. · Issue #82 · raywenderlich/swift-style-guide · GitHub
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FrameworkName' is not a member type of 'FrameworkName' errors inside swiftinterface - Using Swift - Swift Forums
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Write Objective-C Code
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Lesson 2: Creating Custom Classes in Objective-C | by Will Harrison | Introduction to iPhone Application Development | Medium
Calling Hidden/Private API from Swift in Style | The Startup
iOS Tests working with Objective-C and Swift class together | by MonGuNare | If let swift = Programming! | Medium
Add '@objcMembers' attribute to all class declarations – Swiftify
objc' can only be applied to an extension of a class , calling extension method from swift to objective c - Stack Overflow
Swift 3 protocol extension using selector error - Stack Overflow
Advanced Swift · objc.io
objective-c-style-guide/README.md at master · nytimes/objective-c-style-guide · GitHub
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Lesson 2: Creating Custom Classes in Objective-C | by Will Harrison | Introduction to iPhone Application Development | Medium
objc' can only be applied to an extension of a class , calling extension method from swift to objective c - Stack Overflow
clang: clang::ObjCInterfaceDecl Class Reference
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Swift vs. Objective-C: 10 reasons the future favors Swift | InfoWorld
