Update project to Swift 6

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:4.0
+// swift-tools-version:6.0
 import PackageDescription
 
 

README.md

@@ -3,10 +3,10 @@
 [![Slack](https://img.shields.io/badge/join-slack-745EAF.svg?style=flat)](http://bit.ly/2B0dEyt)
 [![Jenkins](https://ci.liveui.io/job/LiveUI/job/XMLCoding/job/master/badge/icon)](https://ci.liveui.io/job/LiveUI/job/XMLCoding/)
 [![Platforms](https://img.shields.io/badge/platforms-macOS%2010.13%20|%20Ubuntu-ff0000.svg?style=flat)](https://github.com/LiveUI/Boost)
-[![Swift 4](https://img.shields.io/badge/swift-4.1-orange.svg?style=flat)](http://swift.org)
+[![Swift 6.1](https://img.shields.io/badge/swift-6.1-orange.svg?style=flat)](http://swift.org)
 [![Vapor 3](https://img.shields.io/badge/vapor-3.0-blue.svg?style=flat)](https://vapor.codes)
 
-XMLEncoder & XMLDecoder using the codable protocol in Swift 4
+XMLEncoder & XMLDecoder using the codable protocol in Swift 6
 
 
 ### Testing

Sources/XMLCoding/Encoder/XMLEncoder.swift

@@ -16,7 +16,7 @@ import Foundation
 open class XMLEncoder {
     // MARK: Options
     /// The formatting of the output XML data.
-    public struct OutputFormatting : OptionSet {
+    public struct OutputFormatting: OptionSet, Sendable {
         /// The format's default value.
         public let rawValue: UInt
 

Sources/XMLCoding/ISO8601DateFormatter.swift

@@ -8,13 +8,16 @@
 
 import Foundation
 
+@available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
+extension ISO8601DateFormatter: @unchecked @retroactive Sendable {}
+
 //===----------------------------------------------------------------------===//
 // Shared ISO8601 Date Formatter
 //===----------------------------------------------------------------------===//
 
 // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
 @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
-internal var _iso8601Formatter: ISO8601DateFormatter = {
+internal let _iso8601Formatter: ISO8601DateFormatter = {
     let formatter = ISO8601DateFormatter()
     formatter.formatOptions = .withInternetDateTime
     return formatter

Tests/XMLCodingTests/XMLParsingTests.swift

@@ -663,23 +663,5 @@ class XMLParsingTests: XCTestCase {
         XCTAssertEqual(response, response2)
     }
 
-    static var allTests = [
-        ("testValuesElement", testValuesElement),
-        ("testEmptyValuesElement", testEmptyValuesElement),
-        ("testFailOnMissingStringElement", testFailOnMissingStringElement),
-        ("testFailOnMissingDataElement", testFailOnMissingDataElement),
-        ("testOptionalEmptyValuesElement", testOptionalEmptyValuesElement),
-        ("testOptionalMissingValuesElement", testOptionalMissingValuesElement),
-        ("testOptionalEmptyValuesCombinedTagElement", testOptionalEmptyValuesCombinedTagElement),
-        ("testValuesWithISO8601DateElement", testValuesWithISO8601DateElement),
-        ("testEmptyStructureElement", testEmptyStructureElement),
-        ("testEmptyStructureElementNotEffectingPreviousElement", testEmptyStructureElementNotEffectingPreviousElement),
-        ("testListDecodingWithDefaultStrategy", testListDecodingWithDefaultStrategy),
-        ("testMapDecodingWithDefaultStrategy", testMapDecodingWithDefaultStrategy),
-        ("testMapDecodingWithCollapsedMap", testMapDecodingWithCollapsedMap),
-        ("testMapDecodingWithCollapsedListAndMap", testMapDecodingWithCollapsedListAndMap),
-        ("testSingletonListDecodingWithDefaultStrategy", testSingletonListDecodingWithDefaultStrategy),
-        ("testListDecodingWithCollapseItemTagStrategy", testListDecodingWithCollapseItemTagStrategy),
-        ("testSingletonListDecodingWithCollapseItemTagStrategy", testSingletonListDecodingWithCollapseItemTagStrategy)
-    ]
+    // Tests discovered automatically
 }

docker/test/Dockerfile

@@ -1,4 +1,4 @@
-FROM liveui/boost-base:1.1.1
+FROM swift:6.1
 
 WORKDIR /app
 

scripts/docker-shortcuts/test.sh

@@ -1,9 +1,5 @@
 #!/usr/bin/env bash
 
-# Generate up-to-date test interface
-echo "👾 Generate up-to-date test interface"
-swift test --generate-linuxmain
-
 # Build
 echo "🤖 Build"
 docker build -f ./docker/test/Dockerfile -t xmlcoding .