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‎Configs/TLVCoding.plist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>en</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIdentifier</key>
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<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>FMWK</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleSignature</key>
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<string>????</string>
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<key>CFBundleVersion</key>
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<string>$(CURRENT_PROJECT_VERSION)</string>
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<key>NSHumanReadableCopyright</key>
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<string>Copyright © 2018 Alsey Coleman Miller. All rights reserved.</string>
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<key>NSPrincipalClass</key>
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<string></string>
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</dict>
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</plist>

‎Configs/TLVCodingTests.plist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>en</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIdentifier</key>
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<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>BNDL</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleSignature</key>
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<string>????</string>
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<key>CFBundleVersion</key>
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<string>1</string>
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</dict>
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</plist>

‎Package.swift‎

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// swift-tools-version:4.0
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// The swift-tools-version declares the minimum version of Swift required to build this package.
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import PackageDescription
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let package = Package(
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name: "TLVCoding",
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products: [
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// Products define the executables and libraries produced by a package, and make them visible to other packages.
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.library(
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name: "TLVCoding",
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targets: ["TLVCoding"]),
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],
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dependencies: [
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// Dependencies declare other packages that this package depends on.
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// .package(url: /* package url */, from: "1.0.0"),
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],
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targets: [
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// Targets are the basic building blocks of a package. A target can define a module or a test suite.
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// Targets can depend on other targets in this package, and on products in packages which this package depends on.
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.target(
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name: "TLVCoding",
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dependencies: []),
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.testTarget(
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name: "TLVCodingTests",
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dependencies: ["TLVCoding"]),
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]
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)

‎Sources/TLVCodable.swift‎

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//
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// TLVCoding.swift
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// PureSwift
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//
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// Created by Alsey Coleman Miller on 3/8/18.
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// Copyright © 2018 PureSwift. All rights reserved.
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//
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import Foundation
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/// Type-Length-Value Codable
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public typealias TLVCodable = TLVEncodable & TLVDecodable
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/// TLV Decodable type
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public protocol TLVDecodable {
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static var typeCode: TLVTypeCode { get }
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init?(valueData: Foundation.Data)
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}
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public protocol TLVEncodable {
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static var typeCode: TLVTypeCode { get }
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var valueData: Foundation.Data { get }
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}
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/// TLV Type Code header
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public protocol TLVTypeCode {
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init?(rawValue: UInt8)
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var rawValue: UInt8 { get }
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}
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// MARK: - Codable Implementations
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public extension TLVDecodable where Self: RawRepresentable, Self.RawValue: RawRepresentable, Self.RawValue.RawValue: Integer {
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public init?(valueData: Foundation.Data) {
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typealias IntegerType = Self.RawValue.RawValue
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assert(MemoryLayout<IntegerType>.size == 1)
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guard valueData.count == 1
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else { return nil }
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let valueByte = valueData[0]
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guard let rawValue = RawValue.init(rawValue: numericCast(valueByte) as IntegerType)
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else { return nil }
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self.init(rawValue: rawValue)
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}
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}
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public extension TLVEncodable where Self: RawRepresentable, Self.RawValue: RawRepresentable, Self.RawValue.RawValue: Integer {
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public var valueData: Foundation.Data {
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typealias IntegerType = Self.RawValue.RawValue
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assert(MemoryLayout<IntegerType>.size == 1)
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let byte = numericCast(rawValue.rawValue) as UInt8
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return Data([byte])
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}
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}
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public extension TLVDecodable where Self: RawRepresentable, Self.RawValue: StringProtocol {
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public init?(valueData: Foundation.Data) {
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guard let string = String(data: valueData, encoding: .utf8) as? Self.RawValue
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else { return nil }
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self.init(rawValue: string)
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}
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}
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public extension TLVEncodable where Self: RawRepresentable, Self.RawValue: StringProtocol {
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public var valueData: Foundation.Data {
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guard let data = (self.rawValue as? String)?.data(using: .utf8)
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else { fatalError("Could not encode string") }
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return data
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}
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}

‎TLVCoding.podspec‎

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Pod::Spec.new do |s|
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s.name = "TLVCoding"
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s.version = "0.1"
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s.summary = ""
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s.description = <<-DESC
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Your description here.
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DESC
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s.homepage = "https://github.com/PureSwift/TLVCoding"
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s.license = { :type => "MIT", :file => "LICENSE" }
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s.author = { "Alsey Coleman Miller" => "[email protected]" }
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s.social_media_url = ""
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s.ios.deployment_target = "8.0"
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s.osx.deployment_target = "10.9"
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s.watchos.deployment_target = "2.0"
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s.tvos.deployment_target = "9.0"
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s.source = { :git => "https://github.com/PureSwift/TLVCoding.git", :tag => s.version.to_s }
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s.source_files = "Sources/**/*"
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s.frameworks = "Foundation"
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end

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