EnumMagic

Dynamically construct an enum value based on its case name and an array of associated values

Beware dragons!

This library brazenly works with unsafe bytes and bitcasts it back into the Swift type system. It is compatible with the current Fragile Enum Layout specification.

How to use it

import EnumMagic

enum IntDoubleOrBignum {  // => LLVM <{ i64, i2 }>
  case Int(Int)           // => <{ i64, i2 }> {           %Int,            0 }
  case Double(Double)     // => <{ i64, i2 }> { (bitcast  %Double to i64), 1 }
  case Bignum(Bignum)     // => <{ i64, i2 }> { (ptrtoint %Bignum to i64), 2 }
  case Alexis(Int, Double)
  case Blank1            // => <{ i64, i2 }> {           0,               3 }
  case Blank2            // => <{ i64, i2 }> {           1,               3 }
  case ASDFA(Int, Bignum)
}

let dynamicInt = CreateEnum(IntDoubleOrBignum.self, "Int", payload: [5])
let dynamicBlank1 = CreateEnum(IntDoubleOrBignum.self, "Blank1")
let dynamicBlank2 = CreateEnum(IntDoubleOrBignum.self, "Blank2")
let dynamicASDFA = CreateEnum(IntDoubleOrBignum.self, "ASDFA", payload: [6, Bignum(num: 5)])