1

Any and all LocalizedStringKey and String.LocalizationValue initialization string literals should be extracted with the Xcode "Export Localizations..." command. But an array of String.LocalizationValue is not extracted:

    // 👎👎👎 but an array of String.LocaizationValue are not extracted!!! 👎
    let charcuteries = [
        String.LocalizationValue("Prosciutto"),
        "Capicola",
    ]

works for LocalizadStringKey:

    // works!! 👍👍👍
    let wines = [
        LocalizedStringKey("Barbera"),
        "Zinfandel"
    ]

I think the extract tool is based on compiler generated output and should handle all String.LocaizationValue initialization. FB9787096

Edit: so to workaround this problem, I am making a copy and change the type from String.LocalizationValue to LocalizedStringKey so the "Export Localizations..." tool can extract the strings:

enum WorkaroundCopyHereForLocalizationExtract {
    static let junk =  Array<LocalizedStringKey>([
        "Prosciutto",
        "Capicola",
    ])
}

I keep the original array of String.LocalizationValue for my real code.

@luca_bernardi

My test 
import SwiftUI

struct Foo: View {
    let text: LocalizedStringKey  // text will be extracted

    var body: some View {
        Text(text)
    }
}

struct Bar: Identifiable, View {
    let id = UUID()
    let text: String

    init(localized text: String.LocalizationValue) {
        self.text = String(localized: text)
    }

    var body: some View {
        Text("Localized ->") + Text(text.first).font(.largeTitle).foregroundColor(.mint) + Text(text.dropFirst().dropLast()) + Text(text.last).font(.largeTitle).foregroundColor(.red)
    }
}

extension Text {
    init(_ c: Character?) {
        self.init(c == nil ? "" : String(c!))
    }
}

struct ContentView: View {
    // these are extracted 👍
    let coffees: [Bar] = [
        .init(localized: "Greater Alarm"),
        .init(localized: "Ambrosia"),
    ]

    // String.LocalizationValue by itself is extracted 👍
    let name1 = String.LocalizationValue("Paul")
    // String.LocalizationValue initialize in this form is extracted 👍
    let name2: String.LocalizationValue = "Jimmy"
    let name3: LocalizedStringKey = "Patty"

    #warning("these are not extracted")
    // 👎👎👎 but an array of String.LocaizationValue are not extracted!!! 👎
    let charcuteries = Array<String.LocalizationValue>([
        "Prosciutto",
        "Capicola",
    ]).map(Bar.init(localized:))

    // works!! 👍👍👍
    let wines = Array<LocalizedStringKey>([
        "Barbera",
        "Zinfandel"
    ])

    // for interpolation
    let gibberish = "abba+cadabra"
    let n = 123
    let d = 123.0
    var body: some View {
        VStack {
            Text("Hello, world!")
                .padding()
            Foo(text: "My name is \("Paul")")   // extracted 👍
            Bar(localized: "Aaa")               // extracted 👍
            Bar(localized: name1)
            Bar(localized: "Blahblah \(gibberish) \(n) \(d) haha")       // extracted 👍
            ForEach(coffees) {
                $0
            }
            ForEach(charcuteries) {
                $0
            }
        }
    }
}