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https://github.com/Dev1an/MsgPack.git
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129 lines
2.5 KiB
Swift
129 lines
2.5 KiB
Swift
//
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// Encoder.swift
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// MsgPack
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//
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// Created by Damiaan on 29/07/17.
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// Copyright © 2017 dPro. All rights reserved.
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//
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import Foundation
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public class Encoder {
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let serialiser = Serialiser()
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public init() {}
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public func encode<T : Encodable>(_ value: T) throws -> Data {
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try value.encode(to: serialiser)
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var data = Data()
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try serialiser.storage?.appendTo(data: &data)
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return data
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}
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}
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class Serialiser: Swift.Encoder {
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var codingPath = [CodingKey]()
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var userInfo = [CodingUserInfoKey : Any]()
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var storage: Format?
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func container<Key>(keyedBy type: Key.Type) -> KeyedEncodingContainer<Key> where Key : CodingKey {
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preconditionFailure()
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}
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func unkeyedContainer() -> UnkeyedEncodingContainer {
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preconditionFailure()
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}
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func singleValueContainer() -> SingleValueEncodingContainer {
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return self
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}
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}
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extension MsgPack.Serialiser: SingleValueEncodingContainer {
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enum Error: Swift.Error {
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case notImplemented, stringNotConvertibleToUTF8
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}
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func encodeNil() throws {
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storage = .nil
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}
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func encode(_ value: Bool) throws {
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storage = .boolean(value)
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}
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func encode(_ value: Int) throws {
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#if arch(arm) || arch(i386)
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storage = .int32(Int32(value))
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#else
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storage = .int64(Int64(value))
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#endif
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}
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func encode(_ value: Int8) throws {
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storage = .int8(value)
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}
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func encode(_ value: Int16) throws {
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storage = .int16(value)
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}
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func encode(_ value: Int32) throws {
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storage = .int32(value)
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}
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func encode(_ value: Int64) throws {
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storage = .int64(value)
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}
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func encode(_ value: UInt) throws {
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#if arch(arm) || arch(i386)
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storage = .uInt32(UInt32(value))
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#else
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storage = .uInt64(UInt64(value))
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#endif
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}
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func encode(_ value: UInt8) throws {
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storage = .uInt8(value)
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}
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func encode(_ value: UInt16) throws {
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storage = .uInt16(value)
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}
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func encode(_ value: UInt32) throws {
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storage = .uInt32(value)
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}
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func encode(_ value: UInt64) throws {
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storage = .uInt64(value)
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}
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func encode(_ value: Float) throws {
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storage = .float32(value)
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}
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func encode(_ value: Double) throws {
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storage = .float64(value)
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}
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func encode(_ value: String) throws {
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guard let data = value.data(using: .utf8) else {throw Error.stringNotConvertibleToUTF8}
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switch data.count {
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case 1..<32:
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storage = .fixString(data)
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case 32..<256:
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storage = .string8(data)
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case 256..<65536:
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storage = .string16(data)
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default:
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storage = .string32(data)
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}
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}
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func encode<T : Encodable>(_ value: T) throws {
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throw Error.notImplemented
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}
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}
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