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some additional helpers
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README.md

Project Status: Active – The project has reached a stable, usablestate and is being activelydeveloped. Signedby Signed commit% Linux buildStatus CoverageStatus Minimal RVersion License

swiftr

Seamless R and Swift Integration

Description

eamless R and Swift Integration

What’s Inside The Tin

The following functions are implemented:

  • add_registration_glue: This examines a package swift file and builds the necessary registration glue code
  • swift_function: Define an R Function with a Swift Implementation

Installation

remotes::install_git("https://git.rud.is/hrbrmstr/swiftr.git")
# or
remotes::install_gitlab("hrbrmstr/swiftr")
# or
remotes::install_bitbucket("hrbrmstr/swiftr")
# or
remotes::install_github("hrbrmstr/swiftr")

NOTE: To use the ‘remotes’ install options you will need to have the {remotes} package installed.

Usage

library(swiftr)

# current version
packageVersion("swiftr")
## [1] '0.1.0'
swift_function(
  code = '

func ignored() {
  print("""
this will be ignored by swift_function() but you could use private
functions as helpers for the main public Swift function which will be 
made available to R.
""")
}  

@_cdecl ("read_plist")
public func read_plist(path: SEXP) -> SEXP {
  
  var out: SEXP = R_NilValue
  
  do {
    // read in the raw plist
    let plistRaw = try Data(contentsOf: URL(fileURLWithPath: String(cString: R_CHAR(STRING_ELT(path, 0)))))
  
    // convert it to a PropertyList  
    let plist = try PropertyListSerialization.propertyList(from: plistRaw, options: [], format: nil) as! [String:Any]
    
    // serialize it to JSON
    let jsonData = try JSONSerialization.data(withJSONObject: plist , options: .prettyPrinted)
    
    // setup the JSON string return
    String(data: jsonData, encoding: .utf8)?.withCString { 
      cstr in out = Rf_mkString(cstr) 
    }
    
  } catch {
    debugPrint("\\(error)")
  }
  
  return(out)
  
}
')

read_plist("/Applications/RStudio.app/Contents/Info.plist") %>% 
  jsonlite::fromJSON() %>% 
  str(1)
## List of 32
##  $ CFBundleVersion                      : chr "1.4.1093-1"
##  $ NSPhotoLibraryAddUsageDescription    : chr "R wants write access to the photo library."
##  $ NSHighResolutionCapable              : logi TRUE
##  $ NSCalendarsUsageDescription          : chr "R wants to access calendars."
##  $ CFBundleLongVersionString            : chr "1.4.1093-1"
##  $ NSContactsUsageDescription           : chr "R wants to access contacts."
##  $ CFBundleGetInfoString                : chr "RStudio 1.4.1093-1, © 2009-2020 RStudio, PBC"
##  $ NSPrincipalClass                     : chr "NSApplication"
##  $ NSCameraUsageDescription             : chr "R wants to access the camera."
##  $ NSPhotoLibraryUsageDescription       : chr "R wants to access the photo library."
##  $ CFBundleInfoDictionaryVersion        : chr "6.0"
##  $ NSRemindersUsageDescription          : chr "R wants to access the reminders."
##  $ CFBundleSignature                    : chr "Rstd"
##  $ CFBundleIconFile                     : chr "RStudio.icns"
##  $ LSRequiresCarbon                     : logi TRUE
##  $ LSApplicationCategoryType            : chr "public.app-category.developer-tools"
##  $ CFBundleExecutable                   : chr "RStudio"
##  $ CFBundlePackageType                  : chr "APPL"
##  $ NSAppleScriptEnabled                 : logi TRUE
##  $ CFBundleDocumentTypes                :'data.frame':   16 obs. of  8 variables:
##  $ OSAScriptingDefinition               : chr "RStudio.sdef"
##  $ CSResourcesFileMapped                : logi TRUE
##  $ NSHumanReadableCopyright             : chr "RStudio 1.4.1093-1, © 2009-2020 RStudio, PBC"
##  $ CFBundleDevelopmentRegion            : chr "English"
##  $ CFBundleIdentifier                   : chr "org.rstudio.RStudio"
##  $ NSBluetoothPeripheralUsageDescription: chr "R wants to access bluetooth."
##  $ NSAppleEventsUsageDescription        : chr "R wants to run AppleScript."
##  $ NSLocationWhenInUseUsageDescription  : chr "R wants to access location information."
##  $ CFBundleShortVersionString           : chr "1.4.1093-1"
##  $ NSMicrophoneUsageDescription         : chr "R wants to access the microphone."
##  $ CFBundleName                         : chr "RStudio"
##  $ NSSupportsAutomaticGraphicsSwitching : logi TRUE

swiftr Metrics

Lang # Files (%) LoC (%) Blank lines (%) # Lines (%)
R 5 0.42 199 0.42 69 0.36 49 0.31
Rmd 1 0.08 40 0.08 27 0.14 30 0.19
SUM 6 0.50 239 0.50 96 0.50 79 0.50

clock Package Metrics for swiftr

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.