check for property via selector before using value(forKey:)

2018-09-11 18:12:27 +01:00
parent d71fe2a2ee
commit 0074ee1d4a
3 changed files with 12 additions and 2 deletions
--- a/Sources/Variable.swift
+++ b/Sources/Variable.swift
@@ -104,7 +104,9 @@ public struct Variable : Equatable, Resolvable {
        #if os(Linux)
          return nil
        #else
-          current = object.value(forKey: bit)
+          if object.responds(to: Selector(bit)) {
+            current = object.value(forKey: bit)
+          }
        #endif
      } else if let value = current {
        current = Mirror(reflecting: value).getValue(for: bit)