60 lines
1.8 KiB
Swift
60 lines
1.8 KiB
Swift
/*
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* Copyright 2021 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import Foundation
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extension String: FlatbuffersInitializable {
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/// Initailizes a string from a Flatbuffers ByteBuffer
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/// - Parameters:
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/// - bb: ByteBuffer containing the readable string
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/// - o: Current position
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public init(_ bb: ByteBuffer, o: Int32) {
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let count = bb.read(def: Int32.self, position: Int(o))
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self = bb.readString(
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at: Int32(MemoryLayout<Int32>.size) + o,
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count: count) ?? ""
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}
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}
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extension String: ObjectAPIPacker {
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public static func pack(_ builder: inout FlatBufferBuilder, obj: inout String?) -> Offset {
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guard var obj = obj else { return Offset() }
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return pack(&builder, obj: &obj)
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}
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public static func pack(_ builder: inout FlatBufferBuilder, obj: inout String) -> Offset {
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builder.create(string: obj)
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}
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public mutating func unpack() -> String {
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self
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}
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}
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extension String: NativeObject {
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public func serialize<T: ObjectAPIPacker>(type: T.Type) -> ByteBuffer where T.T == Self {
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fatalError("serialize should never be called from string directly")
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}
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public func serialize<T: ObjectAPIPacker>(builder: inout FlatBufferBuilder, type: T.Type) -> ByteBuffer where T.T == Self {
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fatalError("serialize should never be called from string directly")
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}
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}
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