Swift 包中的结构声明在使用时导致编译错误

Question

当我将 IngredientStruct 声明为 swift 包的一部分时，在 RecipesVC.swift 中声明成分的行中出现此编译错误。但是，当我在项目中声明相同的结构时，我看不到这一点。这是代码片段：

RecipeStruct.swift // 这是在 swift 包 Recipes

中

import Foundation
public struct IngredientStruct: Encodable, Decodable, Identifiable {
    public var id :                          String
    public var recipeID :                    String
    public var ingredientName :              String
    public var ingredientReplacement :       String
    public var measurementType :             String
    public var measurementQuantity :         Int
    public var storage :                     String
}

RecipesVC.swift

import SwiftUI
import Recipes  // from Recipes swift package
struct RecipesVC: View {
    var ingredient: IngredientStruct = IngredientStruct(id: "", recipeID: "", ingredientName: "", ingredientReplacement: "", measurementType: "", measurementQuantity: 0, storage: "")  // "Extra arguments at positions #1, #2, #3, #4, #5, #6, #7 in call\n  Missing argument for parameter 'from' in call \n Missing argument for parameter 'from' in call \n Insert 'from: <#Decoder#>, ‘”

    var body: View {
    …
    }
}

现在，如果我在本地项目文件中声明相同的 IngredientStruct，它可以正常编译。我不确定我需要在 Swift 包中做什么才能进行编译。有什么指点吗？

@workingdog - 我的坏.. 匆忙剪切和粘贴时出错 - 在结构中丢失了 2 行以及同一行的第二个错误。我也将名称更新为小写。但是，我仍然看到相同的错误。

这是 Package.swift 文件：

import PackageDescription
let package = Package(
    name: "Recipes",
    platforms: [.iOS(.v15), .macOS(.v12)],
    products: [
        .library(
            name: "Recipes",
            targets: ["Recipes"]),
    ],
    dependencies: [ ],
    targets: [
        .target(
            name: "Recipes",
            dependencies: []),
        .testTarget(
            name: "RecipesTests",
            dependencies: ["Recipes"]),
    ]
)

Answer 1

如果正在创建结构 public，则必须对其进行适当的初始化。在上面的示例中，init() 看起来像这样：

public struct IngredientStruct: Encodable, Decodable, Identifiable {
    public var id :                          String
    public var recipeID :                    String
    public var ingredientName :              String
    public var ingredientReplacement :       String
    public var measurementType :             String
    public var measurementQuantity :         Int
    public var storage :                     String

    public init(id: String, recipeID: String, ingredientName: String, ingredientReplacement: String, measurementType: String, measurementQuantity: Int, storage: String) {
        self.id = id
        self.recipeID = recipeID
        self.ingredientName = ingredientName
        self.ingredientReplacement = ingredientReplacement
        self.measurementType = measurementType
        self.measurementQuantity = measurementQuantity
        self.storage = storage
    }
}

Swift 包中的结构声明在使用时导致编译错误

Struct declaration in Swift Package results in compilation error when used

ios

swift

swift-package-manager