Refactoring

submodules/Postbox/Sources/PreferencesEntry.swift

@@ -1,6 +1,6 @@
 import Foundation
 
-public final class PreferencesEntry: Equatable {
+public final class CodableEntry: Equatable {
     public let data: Data
 
     public init(data: Data) {
@@ -18,6 +18,34 @@ public final class PreferencesEntry: Equatable {
         return decoder.decode(T.self, forKey: "_")
     }
 
+    public static func ==(lhs: CodableEntry, rhs: CodableEntry) -> Bool {
+        return lhs.data == rhs.data
+    }
+}
+
+public final class PreferencesEntry: Equatable {
+    public let data: Data
+
+    public init(data: Data) {
+        self.data = data
+    }
+
+    public init?<T: Encodable>(_ value: T?) {
+        guard let value = value else {
+            return nil
+        }
+        let encoder = PostboxEncoder()
+        encoder.encode(value, forKey: "_")
+        self.data = encoder.makeData()
+    }
+
+    public func get<T: Decodable>(_ type: T.Type) -> T? {
+        let decoder = PostboxDecoder(buffer: MemoryBuffer(data: self.data))
+        let result = decoder.decode(T.self, forKey: "_")
+        assert(result != nil)
+        return result
+    }
+
     public static func ==(lhs: PreferencesEntry, rhs: PreferencesEntry) -> Bool {
         return lhs.data == rhs.data
     }