Swift macros contribute to improved code readability and expressiveness by generating code, effectively eliminating repetitive code and enhancing the app development experience.
Questions tagged [swift-macro]
8 questions
3
votes
1 answer
How to use Swift Macros with @Observable and @Environment?
I'm trying to use the new Swift Macros using @Observable and @Environment with the following code:
import SwiftUI
import Observation
@Observable class Note {
var text = ""
}
struct ContentView: View {
@State var note = Note()
var…
ygee
- 2,580
- 3
- 17
- 21
2
votes
0 answers
The package product 'SwiftSyntaxMacros' requires minimum platform version 10.15 for the macOS platform, but this target supports 10.13
I created a new swift macro package in my Xcode project.
My Package.swift looks like:
import CompilerPluginSupport
import PackageDescription
let package = Package(
name: "TestMockable",
platforms: [.iOS(.v14)],
products: [
.library(
…
Sharmin Khan
- 177
- 2
- 13
2
votes
1 answer
Declaration name is not covered by Swift macro
I'm fiddling around with the new Swift 5.9 Macros.
I have the following macro:
Given the following enum
@associatedValues
enum Fruit {
case banana(Banana)
case grape(Grape)
}
I want
@associatedValues
enum Fruit {
case banana(Banana)
…
Nuno Gonçalves
- 6,202
- 7
- 46
- 66
1
vote
0 answers
Cannot find #unwrap macro in Xcode Version 15.0 beta (15A5160n)
Apple demonstrated in more than one session the #unwrap macro which I thought I built into Xcode 15 and the frameworks it is shipped with directly.
But if I try to unwrap an URL:
let url = #unwrap(URL(string: "my-awsome-url.tld"))
I get the…
Tobonaut
- 2,245
- 2
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- 39
0
votes
1 answer
Swift Macros: ReturnClauseSyntax
I am doing some testing and figuring out with the new Swift Macros but I came across a hurdle I can't seem to figure out, also because there isn't a lot of helpful guides on them yet.
So first of all, if the appliance of the macro is a good idea at…
Mar-k
- 648
- 6
- 16
0
votes
0 answers
Is there a way to get the declared funcs of SimpleTypeIdentifierSyntax (representing a Protocol) in SwiftMacro?
I'm trying to create a Swift-Macro. Intention of the Macro is:
take a protocol type as input
generate a class declaration which conforms to this protocol type
implement protocol defined funcs
I've managed to get the class with its conformance…
Steve
- 1
- 1
0
votes
1 answer
@Observable initial value with classes
Converting from ObservableObject to @Observable macro, an initial value is required but initializing from init fails:
@Observable final class ViewModel {
var foo: Foo // ❌ @Observable requires property 'foo' to have an initial value (from macro…
amq
- 160
- 4
- 17
-1
votes
1 answer
Swift Macro: Missing package product 'MyFirstMacro'
In Xcode 15.0.0, I have created a package using a Swift Macro template. I named it 'MyFirstMacro'. The template includes a #stringify macro. Next, I created a new application named 'MyApp' and copied the code from the 'MyFirstMacro' main.swift…
Blazej SLEBODA
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- 7
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- 93