Use Swift dynamic library without swiftmodule file

This repository demonstrates a technique that you can use to create a .swiftmodule file for a .dylib without having access to the original .swift file.

Steps:

1. Analyze the .dylib using nm -gU libModule.dylib
2. Use xcrun swift-demangle to reconstruct the structure of the library
3. Create a mock implementation of the Swift module (see Module.swift)
4. Use the mock implementation to generate the .swiftdoc and .swiftmodule files
5. Compile your program (main.swift) using the mock .swiftmodule and link it against the real dylib (libModule.dylib)

Acknowledgements:

• Thanks to Michael Gianarakis for sharing the slides from his Reverse Engineering Swift Apps talk that introduced me to swift-demangle