Test of RInside with R 3.6, Xcode 11 & Swift 5 on macOS Catalina
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README.md

Test of RInside with R 3.6, Xcode 11 & Swift 5 on macOS Catalina

This is a sample Xcode 11 project (a nigh vanilla/default SwiftUI project) which has:

all setup including sample bridging code to enable function execution and data exchange between Swift 5 and R.

A few key things are included/set:

  • Search paths:
    • /Library/Frameworks/R.framework/Headers/
    • /Library/Frameworks/R.framework/Versions/3.6/Resources/library/RInside/include/
    • /Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include/
  • Frameworks, Libraries and Embedded Content:
    • /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libR.dylib
    • /Library/Frameworks/R.framework/Versions/3.6/Resources/library/RInside/lib/libRInside.dylib
    • Hardened Runtime is enabled with an entitlement of "Disable Library Validation" because the RInside and R shared libraries aren't codesigned (see rin-swift/rin_test.entitlements)
  • one .mm file which lets Xcode know we're using Objective-C++. This is where you include things like R.h, Rcpp.h, and RInside.h or other C/C++ libraries
  • one ^^ corresponding .hpp file that has no imports or includes of anything R/Rcpp-ish and defines the functions you're going to expose to Swift
  • one bridging header (setup as as an "Objective C Bridging Header" under "Swift Compiler" in the General settings. This should just include ^^
  • R (RInside) is initialized in the AppDelegate.swift and an example of calling functions with and without parameters is in ContentView.swift

There are quite a number of post-compilation yellow flags due to the R-ish headers but it builds and runs fine.

Built on the shoulders of:

  • Brian Hall's old-ish (2015) example of getting R to play nice with Xcode
  • Ben Gorman's more recent (March, 2019) example of getting R 3.5 & RInside to play nice with Xcode
  • Patrick Wardle's example of getting C-ish things to work with Objective C)