Foreign function interface

[KCreate]

• Automated mechanism to create arbitrary declarations to native c functions
  • Will lead to horrible crashes if the signature is invalid
• Automatically converts from applicable charly types to c types
• C types are automatically converted to applicable charly type
• Use libffi/libffi
• Maybe some fancy mechanism to declare c structs
  • Would need to automatically calculate struct paddings somehow?
  • Is this standardized?

import ffi

const mymathlib = ffi.dlopen("mymathlib.so")

// dlsym(name, return_type, ...arguments)
const sin = mymathlib.dlsym("sin", ffi.f64, ffi.f64)

sin                 // ForeignNativeFunction f64 sin(f64)
sin(Math.PI / 2)    // 1.0