Use Swift 5.7 nightly on CI, fix build issues

.github/workflows/ci.yml

@@ -27,8 +27,8 @@ jobs:
       matrix:
         include:
           - { toolchain: wasm-5.6.0-RELEASE }
-          - { toolchain: wasm-5.7-SNAPSHOT-2022-06-01-a }
-          - { toolchain: wasm-DEVELOPMENT-SNAPSHOT-2022-06-23-a }
+          - { toolchain: wasm-5.7-SNAPSHOT-2022-07-27-a }
+          - { toolchain: wasm-DEVELOPMENT-SNAPSHOT-2022-07-23-a }
 
     steps:
       - uses: actions/checkout@v2
@@ -85,7 +85,7 @@ jobs:
         shell: bash
         run: |
           set -ex
-          sudo xcode-select --switch /Applications/Xcode_13.4.app/Contents/Developer/
+          sudo xcode-select --switch /Applications/Xcode_13.4.1.app/Contents/Developer/
 
           brew install gtk+3
 
@@ -94,7 +94,7 @@ jobs:
   gtk_ubuntu_18_04_build:
     runs-on: ubuntu-latest
     container:
-      image: swiftlang/swift:nightly-bionic
+      image: swiftlang/swift:nightly-5.7-bionic
 
     steps:
       - uses: actions/checkout@v2
@@ -109,7 +109,7 @@ jobs:
   gtk_ubuntu_20_04_build:
     runs-on: ubuntu-latest
     container:
-      image: swiftlang/swift:nightly-focal
+      image: swiftlang/swift:nightly-5.7-focal
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/codecov.yml

@@ -8,26 +8,26 @@ on:
 jobs:
   codecov:
     container:
-      image: swiftlang/swift:nightly-focal
+      image: swiftlang/swift:nightly-5.7-focal
     runs-on: ubuntu-latest
     steps:
-    - run: apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y gtk+-3.0 libgtk+-3.0
-    - name: Checkout Branch
-      uses: actions/checkout@v2
-    - name: Build Test Target
-      run: swift build -Xswiftc -profile-coverage-mapping -Xswiftc -profile-generate --product TokamakPackageTests
-    - name: Run Tests
-      run: swift test --enable-code-coverage --skip-build
-    - name: Generate Branch Coverage Report
-      uses: mattpolzin/swift-codecov-action@0.7.1
-      id: cov
-      with:
-        MINIMUM_COVERAGE: 15
-    - name: Post Positive Results
-      if: ${{ success() }}
-      run: |
-        echo "::warning file=Package.swift,line=1,col=1::The current code coverage percentage is passing with ${{ steps.cov.outputs.codecov }} (minimum allowed: ${{ steps.cov.outputs.minimum_coverage }}%)."
-    - name: Post Negative Results
-      if: ${{ failure() }}
-      run: |
-        echo "::error file=Package.swift,line=1,col=1::The current code coverage percentage is failing with ${{ steps.cov.outputs.codecov }} (minimum allowed: ${{ steps.cov.outputs.minimum_coverage }}%)."
+      - run: apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y gtk+-3.0 libgtk+-3.0
+      - name: Checkout Branch
+        uses: actions/checkout@v2
+      - name: Build Test Target
+        run: swift build -Xswiftc -profile-coverage-mapping -Xswiftc -profile-generate --product TokamakPackageTests
+      - name: Run Tests
+        run: swift test --enable-code-coverage --skip-build
+      - name: Generate Branch Coverage Report
+        uses: mattpolzin/swift-codecov-action@0.7.1
+        id: cov
+        with:
+          MINIMUM_COVERAGE: 15
+      - name: Post Positive Results
+        if: ${{ success() }}
+        run: |
+          echo "::warning file=Package.swift,line=1,col=1::The current code coverage percentage is passing with ${{ steps.cov.outputs.codecov }} (minimum allowed: ${{ steps.cov.outputs.minimum_coverage }}%)."
+      - name: Post Negative Results
+        if: ${{ failure() }}
+        run: |
+          echo "::error file=Package.swift,line=1,col=1::The current code coverage percentage is failing with ${{ steps.cov.outputs.codecov }} (minimum allowed: ${{ steps.cov.outputs.minimum_coverage }}%)."

Sources/TokamakCore/Fiber/Layout/StackLayout.swift

@@ -261,30 +261,8 @@ extension VStack: StackLayout {
   public var _alignment: Alignment { .init(horizontal: alignment, vertical: .center) }
 }
 
-public extension VStack where Content == EmptyView {
-  init(
-    alignment: HorizontalAlignment = .center,
-    spacing: CGFloat? = nil
-  ) {
-    self.alignment = alignment
-    self.spacing = spacing
-    content = EmptyView()
-  }
-}
-
 @_spi(TokamakCore)
 extension HStack: StackLayout {
   public static var orientation: Axis { .horizontal }
   public var _alignment: Alignment { .init(horizontal: .center, vertical: alignment) }
 }
-
-public extension HStack where Content == EmptyView {
-  init(
-    alignment: VerticalAlignment = .center,
-    spacing: CGFloat? = nil
-  ) {
-    self.alignment = alignment
-    self.spacing = spacing
-    content = EmptyView()
-  }
-}

Sources/TokamakCore/Views/Containers/List/List.swift

@@ -39,46 +39,48 @@ public struct List<SelectionValue, Content>: View
     self.content = content()
   }
 
-  var listStack: some View {
-    VStack(alignment: .leading, spacing: 0) { () -> AnyView in
-      if let contentContainer = content as? ParentView {
-        var sections = [AnyView]()
-        var currentSection = [AnyView]()
-        for child in contentContainer.children {
-          if child.view is SectionView {
-            if currentSection.count > 0 {
-              sections.append(AnyView(Section {
-                ForEach(Array(currentSection.enumerated()), id: \.offset) { _, view in view }
-              }))
-              currentSection = []
-            }
-            sections.append(child)
-          } else {
-            if child.children.count > 0 {
-              currentSection.append(contentsOf: child.children)
-            } else {
-              currentSection.append(child)
-            }
+  func stackContent() -> AnyView {
+    if let contentContainer = content as? ParentView {
+      var sections = [AnyView]()
+      var currentSection = [AnyView]()
+      for child in contentContainer.children {
+        if child.view is SectionView {
+          if currentSection.count > 0 {
+            sections.append(AnyView(Section {
+              ForEach(Array(currentSection.enumerated()), id: \.offset) { _, view in view }
+            }))
+            currentSection = []
           }
-        }
-        if currentSection.count > 0 {
-          sections.append(AnyView(Section {
-            ForEach(Array(currentSection.enumerated()), id: \.offset) { _, view in view }
-          }))
-        }
-        return AnyView(_ListRow.buildItems(sections) { view, isLast in
-          if let section = view.view as? SectionView {
-            section.listRow(style)
+          sections.append(child)
+        } else {
+          if child.children.count > 0 {
+            currentSection.append(contentsOf: child.children)
           } else {
-            _ListRow.listRow(view, style, isLast: isLast)
+            currentSection.append(child)
           }
-        })
-      } else {
-        return AnyView(content)
+        }
       }
+      if currentSection.count > 0 {
+        sections.append(AnyView(Section {
+          ForEach(Array(currentSection.enumerated()), id: \.offset) { _, view in view }
+        }))
+      }
+      return AnyView(_ListRow.buildItems(sections) { view, isLast in
+        if let section = view.view as? SectionView {
+          section.listRow(style)
+        } else {
+          _ListRow.listRow(view, style, isLast: isLast)
+        }
+      })
+    } else {
+      return AnyView(content)
     }
   }
 
+  var listStack: some View {
+    VStack(alignment: .leading, spacing: 0, content: stackContent)
+  }
+
   @_spi(TokamakCore)
   public var body: some View {
     if let style = style as? ListStyleDeferredToRenderer {