This was mistakenly relying on a Darwin-style bridged cast. So…:
… only fetch values that are objects — it makes a new warning happen on Darwin that I can't silence, but it will work on both platforms and without warnings on Linux.
diff --git a/Foundation/UserDefaults.swift b/Foundation/UserDefaults.swift
index 88cf816..275a7d8 100644
--- a/Foundation/UserDefaults.swift
+++ b/Foundation/UserDefaults.swift
@@ -268,7 +268,15 @@
}
open func register(defaults registrationDictionary: [String : Any]) {
- registeredDefaults.merge(registrationDictionary.mapValues { _SwiftValue.fetch(nonOptional: $0 as AnyObject) }, uniquingKeysWith: { $1 })
+ registeredDefaults.merge(registrationDictionary.mapValues { value in
+ // This line will produce a 'Conditional cast always succeeds' warning on Darwin, since Darwin has bridging casts of any value to an object,
+ // but is required for non-Darwin to work correctly, since that platform _doesn't_ have bridging casts of that kind for now.
+ if let object = value as? AnyObject {
+ return _SwiftValue.fetch(nonOptional: object)
+ } else {
+ return value
+ }
+ }, uniquingKeysWith: { $1 })
}
open func addSuite(named suiteName: String) {
