AutoChangeable is a simple library that provides a convenient way to copy instances of Swift types with changed properties:
struct User: AutoChangeable {
let id: Int
let name: String
let age: Int
}
let steve = User(id: 1, name: "Steve", age: 21)
// Copy the instance by changing the `name` and `age` properties
let steveJobs = steve.changing { newUser in
newUser.name = "Steve Jobs"
newUser.age = 41
}
The most convenient way to use AutoChangeable is to configure code generation
and conform your structs to the AutoChangeable
protocol:
struct User: AutoChangeable {
let id: Int
let name: String
let age: Int
}
If you don't want to configure code generation, you just need to implement initialization from a copy manually:
extension User: Changeable {
init(copy: ChangeableWrapper<Self>) {
self.init(
id: copy.id,
name: copy.name,
age: copy.age
)
}
}
CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:
$ gem install cocoapods
To integrate AutoChangeable into your Xcode project using CocoaPods, specify it in your Podfile
:
platform :ios, '10.0'
use_frameworks!
target '<Your Target Name>' do
pod 'AutoChangeable'
end
Finally run the following command:
$ pod install
Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. You can install Carthage with Homebrew using the following command:
$ brew update
$ brew install carthage
To integrate AutoChangeable into your Xcode project using Carthage, specify it in your Cartfile
:
github "almazrafi/AutoChangeable" ~> 1.0.1
Finally run carthage update
to build the framework and drag the built AutoChangeable.framework
into your Xcode project.
The Swift Package Manager is a tool for managing the distribution of Swift code. It’s integrated with the Swift build system to automate the process of downloading, compiling, and linking dependencies.
To integrate AutoChangeable into your Xcode project using Swift Package Manager,
add the following as a dependency to your Package.swift
:
.package(url: "https://github.com/almazrafi/AutoChangeable.git", from: "1.0.1")
and then specify "AutoChangeable"
as a dependency of the Target in which you wish to use AutoChangeable.
Here's an example Package.swift
:
// swift-tools-version:5.0
import PackageDescription
let package = Package(
name: "MyPackage",
products: [
.library(name: "MyPackage", targets: ["MyPackage"])
],
dependencies: [
.package(url: "https://github.com/almazrafi/AutoChangeable.git", from: "1.0.1")
],
targets: [
.target(name: "MyPackage", dependencies: ["AutoChangeable"])
]
)
To generate code for the AutoChangeable
protocol, the first thing you need to do
is to install the Sourcery command line tool.
You can use a ready-made Stencil-template for Sourcery, which can be downloaded from the latest release files on the repository releases page.
If AutoChangeable is installed using CocoaPods, it already contains this template and a helper script for generating code. You can either run it manually or in a custom build phase using the following command:
Pods/AutoChangeable/Bin/AutoChangeable \
--sources Path/to/yours/sources \
--output Path/to/generated/file
AutoChangeable is available under the MIT license. See the LICENSE file for more info.
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