Swift Language Support: Drop <5.9, Add 6.0 (#73)

* Swift Language Support: Drop <5.9, Add 6.0

* wip

* wip

.github/workflows/ci.yml

@@ -10,17 +10,26 @@ on:
 
 jobs:
   build:
-    name: MacOS
-    runs-on: macOS-latest
+    name: macOS
+    runs-on: macos-14
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+    - name: Select Xcode
+      run: sudo xcode-select -s /Applications/Xcode_15.4.app
     - name: Run tests
-      run: make test-swift
+      run: swift test
 
-  ubuntu:
-    name: Ubuntu
+  linux:
+    strategy:
+      matrix:
+        swift:
+          - '5.10'
+    name: Linux (Swift ${{ matrix.swift }})
     runs-on: ubuntu-latest
+    container: swift:${{ matrix.swift }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Run tests
-      run: make test-linux
+      - uses: actions/checkout@v4
+      - name: Run tests
+        run: swift test --parallel
+      - name: Run tests (release)
+        run: swift test -c release --parallel

Package.swift

@@ -1,4 +1,5 @@
-// swift-tools-version:5.1
+// swift-tools-version: 5.9
+
 import Foundation
 import PackageDescription
 
@@ -20,3 +21,10 @@ var package = Package(
     .testTarget(name: "TaggedTimeTests", dependencies: ["TaggedTime"]),
   ]
 )
+
+for target in package.targets {
+  target.swiftSettings = target.swiftSettings ?? []
+  target.swiftSettings!.append(contentsOf: [
+    .enableExperimentalFeature("StrictConcurrency")
+  ])
+}

Package@swift-6.0.swift

@@ -0,0 +1,24 @@
+// swift-tools-version: 6.0
+
+import Foundation
+import PackageDescription
+
+var package = Package(
+  name: "swift-tagged",
+  products: [
+    .library(name: "Tagged", targets: ["Tagged"]),
+    .library(name: "TaggedMoney", targets: ["TaggedMoney"]),
+    .library(name: "TaggedTime", targets: ["TaggedTime"]),
+  ],
+  targets: [
+    .target(name: "Tagged", dependencies: []),
+    .testTarget(name: "TaggedTests", dependencies: ["Tagged"]),
+
+    .target(name: "TaggedMoney", dependencies: ["Tagged"]),
+    .testTarget(name: "TaggedMoneyTests", dependencies: ["TaggedMoney"]),
+
+    .target(name: "TaggedTime", dependencies: ["Tagged"]),
+    .testTarget(name: "TaggedTimeTests", dependencies: ["TaggedTime"]),
+  ],
+  swiftLanguageVersions: [.v6]
+)