chore(): swift 5.3; refactor(advanced list): make use of function builder enhancements

Author: Christian Elies

.travis.yml

@@ -1,5 +1,5 @@
 language: swift
-osx_image: xcode11.6
+osx_image: xcode12
 script:
   - swift package generate-xcodeproj
   - xcodebuild clean test -destination 'name=iPhone 8' -scheme AdvancedList-Package -enableCodeCoverage YES -derivedDataPath .build/derivedData -quiet

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.2
+// swift-tools-version:5.3
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

README.md

@@ -1,6 +1,6 @@
 # AdvancedList
 
-[![Swift 5.2](https://img.shields.io/badge/swift-5.2-green.svg?longCache=true&style=flat-square)](https://developer.apple.com/swift)
+[![Swift 5.3](https://img.shields.io/badge/swift-5.3-green.svg?longCache=true&style=flat-square)](https://developer.apple.com/swift)
 [![Platforms](https://img.shields.io/badge/platform-iOS%20%7C%20macOS%20%7C%20tvOS-lightgrey.svg?longCache=true&style=flat-square)](https://www.apple.com)
 [![Current version](https://img.shields.io/github/v/tag/crelies/AdvancedList?longCache=true&style=flat-square)](https://github.com/crelies/AdvancedList)
 [![Build status](https://travis-ci.com/crelies/AdvancedList.svg?token=THnaziKxRFFz1nKcsPgz&branch=dev)](https://travis-ci.com/crelies/AdvancedList)

Sources/AdvancedList/public/Views/AdvancedList.swift

@@ -41,7 +41,8 @@ public struct AdvancedList<Data: RandomAccessCollection, Content: View, EmptySta
 extension AdvancedList {
     public var body: some View {
         Group {
-            if listState.wrappedValue == .items {
+            switch listState.wrappedValue {
+            case .items:
                 if !data.isEmpty {
                     VStack {
                         getListView()
@@ -53,12 +54,10 @@ extension AdvancedList {
                 } else {
                     emptyStateView()
                 }
-            } else if listState.wrappedValue == .loading {
+            case .loading:
                 loadingStateView()
-            } else {
-                listState.wrappedValue.error.map {
-                    errorStateView($0)
-                }
+            case let .error(error):
+                errorStateView(error)
             }
         }
     }