Dactyloidae iOS initial commit

mobile/ios/ReadingList/ReadingListClientMetadata.swift

@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import Foundation
+
+public struct ReadingListClientMetadata: Equatable {
+    /// The id of the record in the database
+    public var id: Int64
+    /// A client timestamp
+    public var lastModified: ReadingListTimestamp
+
+    public init?(row: [String: Any]) {
+        guard let id = row["client_id"] as? Int64,
+            let lastModified = row["client_last_modified"] as? Int64 else {
+            return nil
+        }
+        self.id = id
+        self.lastModified = lastModified
+    }
+}
+
+public func ==(lhs: ReadingListClientMetadata, rhs: ReadingListClientMetadata) -> Bool {
+    return lhs.id == rhs.id && lhs.lastModified == rhs.lastModified
+}