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kordophone2/XPC/XPCConvertible.swift

@@ -78,6 +78,15 @@ extension Array: XPCConvertible where Element: XPCConvertible
 
 extension xpc_object_t
 {
+    func getObject(_ key: String) -> xpc_object_t? {
+        var raw: xpc_object_t?
+        key.withCString { cKey in
+            raw = xpc_dictionary_get_value(self, cKey)
+        }
+
+        return raw
+    }
+
     func get<T: XPCConvertible>(_ key: String) -> T? {
         var raw: xpc_object_t?
         key.withCString { cKey in
@@ -88,7 +97,42 @@ extension xpc_object_t
         return T.fromXPC(value)
     }
 
-    subscript<T: XPCConvertible>(key: String) -> T? {
-        return get(key)
+    subscript<T: XPCConvertible>(key: String) -> T? { return get(key) }
+
+    var isDictionary: Bool { xpc_get_type(self) == XPC_TYPE_DICTIONARY }
+    var isArray: Bool { xpc_get_type(self) == XPC_TYPE_ARRAY }
+}
+
+// MARK: - Dictionary wrapper
+
+struct XPCDictionary
+{
+    let raw: xpc_object_t
+
+    init?(_ value: xpc_object_t) {
+        guard xpc_get_type(value) == XPC_TYPE_DICTIONARY else { return nil }
+        self.raw = value
+    }
+
+    func object(_ key: String) -> xpc_object_t? {
+        var rawValue: xpc_object_t?
+        key.withCString { cKey in
+            rawValue = xpc_dictionary_get_value(raw, cKey)
+        }
+        return rawValue
+    }
+
+    func get<T: XPCConvertible>(_ key: String) -> T? {
+        guard let value = object(key) else { return nil }
+        return T.fromXPC(value)
+    }
+
+    subscript<T: XPCConvertible>(_ key: String) -> T? { return get(key) }
+}
+
+extension XPCDictionary
+{
+    static func wrap(_ value: xpc_object_t) -> XPCDictionary? {
+        return XPCDictionary(value)
     }
 }