SwiftMacros

1.4.1

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A practical collection of Swift Macros that help code correctly and swiftly.
ShenghaiWang/SwiftMacros

What's New

Syntax improvement & bug fixes

2023-12-21T19:43:36Z

Syntax improvement & bug fixes

SwiftMacros

A practical collection of Swift Macros that help code correctly and swiftly.

Install

.package(url: "https://github.com/ShenghaiWang/SwiftMacros.git", from: "1.0.0")

Macros API Doc

Macro Description
@Access An easy API to access UserDefaults, Keychain, NSCache and NSMapTable. 
struct TestAccess {
    static let cache = NSCache<NSString, AnyObject>()

    // Please make sure the generic type is the same as the type of the variable
    // Without defalut value
    @Access<Bool?>(.userDefaults())
    var isPaidUser: Bool?

    // With default value
    @Access< Bool>(.userDefaults())
    var isPaidUser2: Bool = false

    @Access<NSObject?>(.nsCache(TestAccess.cache))
    var hasPaid: NSObject?

    @Access<NSObject?>(.nsMapTable(TestAccess.mapTable))
    var hasPaid2: NSObject?

    @Access<TestStruct?>(.keychain)
    var keychainValue: TestStruct?
}
@AddAssociatedValueVariable Add variables to retrieve the associated values 
@AddAssociatedValueVariable
enum MyEnum {
    case first
    case second(Int)
    case third(String, Int)
    case forth(a: String, b: Int), forth2(String, Int)
    case fifth(() -> Void)
}
@AddInit Generate initialiser for the class/struct/actor. The variables with optional types will have nil as default values. Using withMock: true if want to generate mock data.
For custmoised data type, it will use Type.mock. In case there is no this value, need to define this yourself or use @Mock or @AddInit(withMock: true) to generate this variable.
@AddPublisher Generate a Combine publisher to a Combine subject in order to avoid overexposing subject variable 
@AddPublisher
private let mySubject = PassthroughSubject<Void, Never>()
 
@AddInit
struct InitStruct {
    let a: Int
    let b: Int?
    let c: (Int?) -> Void
    let d: ((Int?) -> Void)?
}
@AddInit(withMock: true)
class AStruct {
    let a: Float
}
#buildDate Build a Date from components
This solution addes in a resultBulder DateBuilder, which can be used directly if prefer builder pattern.
Note: this is for a simpler API. Please use it with caution in places that require efficiency.		 
let date = #buildDate(DateString("03/05/2003", dateFormat: "MM/dd/yyyy"),
                      Date(),
                      Month(10),
                      Year(1909),
                      YearForWeekOfYear(2025))
#buildURL Build a url from components.
This solution addes in a resultBulder URLBuilder, which can be used directly if prefer builder pattern.		 
let url = #buildURL("http://google.com",
                   URLScheme.https,
                   URLQueryItems([.init(name: "q1", value: "q1v"), .init(name: "q2", value: "q2v")]))
let url2 = buildURL {
    "http://google.com"
    URLScheme.https
    URLQueryItems([.init(name: "q1", value: "q1v"), .init(name: "q2", value: "q2v")])
}
#buildURLRequest Build a URLRequest from components.
This solution addes in a resultBulder URLRequestBuilder, which can be used directly if prefer builder pattern.		 
let urlrequest = #buildURLRequest(url!, RequestTimeOutInterval(100))
let urlRequest2 = buildURLRequest {
    url!
    RequestTimeOutInterval(100)
}
@ConformToEquatable Add Equtable conformance to a class type
Use it with caution per https://github.com/apple/swift-evolution/blob/main/proposals/0185-synthesize-equatable-hashable.md#synthesis-for-class-types-and-tuples		 
@AddInit
@ConformToEquatable
class AClass {
    let a: Int?
    let b: () -> Void
}
@ConformToHashable Add Hashable conformance to a class type
Use it with caution per https://github.com/apple/swift-evolution/blob/main/proposals/0185-synthesize-equatable-hashable.md#synthesis-for-class-types-and-tuples		 
@AddInit
@ConformToHashable
class AClass {
    let a: Int?
    let b: () -> Void
}
#encode Encode an Encodable to data using JSONEncoder 
#encode(value)
#decode Decode a Decodable to a typed value using JSONDecoder 
#decode(TestStruct.self, from: data)
#formatDate Format date to a string 
#formatDate(Date(), dateStyle: .full)
#formatDateComponents Format date differences/timeinterval/date components to a string 
#formatDateComponents(from: Date(), to: Date(), allowedUnits: [.day, .hour, .minute, .second])
#formatDateComponents(fromInterval: 100, allowedUnits: [.day, .hour, .minute, .second])
#formatDateComponents(fromComponents: DateComponents(hour: 10), allowedUnits: [.day, .hour, .minute, .second])
#formatDateInterval Format two dates into interval string 
#formatDateInterval(from: Date(), to: Date(), dateStyle: .short)
@Mock Generate a static variable mock using the attached initializer.
For custmoised data type, it will use Type.mock. In case there is no this value, need to define this yourself or use @Mock or @AddInit(withMock: true) to generate this variable.		 
class AStruct {
    let a: Float
    @Mock(type: AStruct.self)
    init(a: Float) {
        self.a = a
    }
}
#postNotification An easy way to post notifications 
#postNotification(.NSCalendarDayChanged)
@Singleton Generate Swift singleton code for struct and class types 
@Singleton
struct A {}

To be added

Please feel free to add the macros you want here. All PRs(with or without implementations) are welcome.

Macro Description
@ Your new macro ideas

Description

  • Swift Tools 5.9.0
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Dependencies

Last updated: Wed May 01 2024 04:37:52 GMT-0900 (Hawaii-Aleutian Daylight Time)