Workarounds for Linux

This disables FHIRAbstractResource’s `instantiate()` method because of a compiler crash (argument type mismatch when it calls out to the factory). Also adds a somewhat nasty conversion from `Decimal` to `Double` – needed while NSJSONSerialization works differently on Linux and macOS.

Sources/Models/FHIRAbstractResource.swift

@@ -33,16 +33,19 @@ open class FHIRAbstractResource: FHIRAbstractBase {
 
 	- note: If the factory does not return a subclass of the receiver, will discard the factory-created instance and use
 	`self.init(json:owner:)` instead.
+	- todo: Disabled factory use on Linux for now since it crashes the compiler as of Swift 3.0.1
 
 	- parameter json:  A FHIRJSON decoded from a JSON response
 	- parameter owner: The FHIRAbstractBase owning the new instance, if appropriate
 	- returns:         If possible the appropriate FHIRAbstractBase subclass, instantiated from the given JSON dictionary, Self otherwise
 	- throws:          FHIRValidationError
 	*/
 	public final override class func instantiate(from json: FHIRJSON, owner: FHIRAbstractBase?) throws -> Self {
+		#if !os(Linux)
 		if let type = json["resourceType"] as? String {
 			return try factory(type, json: json, owner: owner, type: self)
 		}
+		#endif
 		return try self.init(json: json, owner: owner)		// must use 'required' init with dynamic type
 	}
 

Sources/Models/FHIRDecimal.swift

@@ -71,7 +71,7 @@ public struct FHIRDecimal: FHIRPrimitive, LosslessStringConvertible, Expressible
 
 	public func asJSON(errors: inout [FHIRValidationError]) -> JSONType {
 		#if os(Linux)
-		return doubleValue
+		return Double("\(decimal)") ?? 0.0
 		#else
 		return decimal as NSNumber
 		#endif