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1 /*
2  * Copyright 2021 Google Inc. All rights reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 import Foundation
18 
19 public protocol NativeObject {}
20 
21 extension NativeObject {
22 
23   /// Serialize is a helper function that serailizes the data from the Object API to a bytebuffer directly th
24   /// - Parameter type: Type of the Flatbuffer object
25   /// - Returns: returns the encoded sized ByteBuffer
serialize<T: ObjectAPIPacker>null26   public func serialize<T: ObjectAPIPacker>(type: T.Type) -> ByteBuffer where T.T == Self {
27     var builder = FlatBufferBuilder(initialSize: 1024)
28     return serialize(builder: &builder, type: type.self)
29   }
30 
31   /// Serialize is a helper function that serailizes the data from the Object API to a bytebuffer directly.
32   ///
33   /// - Parameters:
34   ///   - builder: A FlatBufferBuilder
35   ///   - type: Type of the Flatbuffer object
36   /// - Returns: returns the encoded sized ByteBuffer
37   /// - Note: The `serialize(builder:type)` can be considered as a function that allows you to create smaller builder instead of the default `1024`.
38   ///  It can be considered less expensive in terms of memory allocation
serialize<T: ObjectAPIPacker>null39   public func serialize<T: ObjectAPIPacker>(builder: inout FlatBufferBuilder, type: T.Type) -> ByteBuffer where T.T == Self {
40     var s = self
41     let root = type.pack(&builder, obj: &s)
42     builder.finish(offset: root)
43     return builder.sizedBuffer
44   }
45 }
46