feat: Enable AOT compatibility (#157)

Dreamescaper · Nov 6, 2024 · d1a26a1 · d1a26a1
1 parent 2e98dad
commit d1a26a1
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Showing 4 changed files with 65 additions and 64 deletions.
diff --git a/src/BlazorBindings.Core/BlazorBindings.Core.csproj b/src/BlazorBindings.Core/BlazorBindings.Core.csproj
@@ -6,7 +6,7 @@
 		<Description>Common logic for using Blazor to target native renderers. For mobile app projects for Android and iOS use the BlazorBindings.Maui package.</Description>
 		<PackageTags>blazor;blazorbindings</PackageTags>
 		<ImplicitUsings>enable</ImplicitUsings>
-		<IsTrimmable>true</IsTrimmable>
+		<IsAotCompatible>true</IsAotCompatible>
 	</PropertyGroup>
 
 	<ItemGroup>

diff --git a/src/BlazorBindings.Maui/BlazorBindings.Maui.csproj b/src/BlazorBindings.Maui/BlazorBindings.Maui.csproj
@@ -5,7 +5,7 @@
 		<Title>Maui binding for Blazor</Title>
 		<Description>Maui Blazor Bindings enables using Blazor syntax in .razor files to build native apps for iOS and Android.</Description>
 		<PackageTags>blazor;blazorbindings</PackageTags>
-		<IsTrimmable>true</IsTrimmable>
+		<IsAotCompatible>true</IsAotCompatible>
 
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">10.0</SupportedOSPlatformVersion>
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">13.1</SupportedOSPlatformVersion>

diff --git a/src/BlazorBindings.Maui/Elements/Internal/DataTemplates/DataTemplateSelectorComponent.cs b/src/BlazorBindings.Maui/Elements/Internal/DataTemplates/DataTemplateSelectorComponent.cs
@@ -57,7 +57,7 @@ private int AddTemplateGroup()
     void INonPhysicalChild.SetParent(object parentElement)
     {
         var parent = (TControl)parentElement;
-        var dataTemplate = new DataTemplateSelector(TemplateSelector, AddTemplateGroup, AddTemplateRootToGroup);
+        var dataTemplate = new DataTemplateSelector<TItem>(TemplateSelector, AddTemplateGroup, AddTemplateRootToGroup);
         SetDataTemplateSelectorAction(parent, dataTemplate);
     }
 
@@ -66,57 +66,58 @@ void INonPhysicalChild.RemoveFromParent(object parentElement) { }
     void IContainerElementHandler.AddChild(object child, int physicalSiblingIndex) { }
     void IContainerElementHandler.RemoveChild(object child, int physicalSiblingIndex) { }
 
-    class DataTemplateSelector : MC.DataTemplateSelector
+}
+
+file class DataTemplateSelector<TItem> : MC.DataTemplateSelector
+{
+    private readonly RenderFragment<TItem> _renderFragment;
+    private readonly Func<int> _addGroupFunc;
+    private readonly Func<int, MC.View> _addRootToGroupFunc;
+    private readonly Dictionary<Type, MC.DataTemplate> _dataTemplates = new();
+
+    public DataTemplateSelector(RenderFragment<TItem> renderFragment, Func<int> addGroupFunc, Func<int, MC.View> addRootToGroupFunc)
     {
-        private readonly RenderFragment<TItem> _renderFragment;
-        private readonly Func<int> _addGroupFunc;
-        private readonly Func<int, MC.View> _addRootToGroupFunc;
-        private readonly Dictionary<Type, MC.DataTemplate> _dataTemplates = new();
+        _renderFragment = renderFragment;
+        _addGroupFunc = addGroupFunc;
+        _addRootToGroupFunc = addRootToGroupFunc;
+    }
 
-        public DataTemplateSelector(RenderFragment<TItem> renderFragment, Func<int> addGroupFunc, Func<int, MC.View> addRootToGroupFunc)
+    protected override MC.DataTemplate OnSelectTemplate(object item, MC.BindableObject container)
+    {
+        var componentType = GetComponentType(_renderFragment((TItem)item));
+
+        if (!_dataTemplates.TryGetValue(componentType, out var dataTemplate))
         {
-            _renderFragment = renderFragment;
-            _addGroupFunc = addGroupFunc;
-            _addRootToGroupFunc = addRootToGroupFunc;
+            var groupIndex = _addGroupFunc();
+            dataTemplate = new MC.DataTemplate(() => _addRootToGroupFunc(groupIndex));
+            _dataTemplates[componentType] = dataTemplate;
         }
 
-        protected override MC.DataTemplate OnSelectTemplate(object item, MC.BindableObject container)
+        return dataTemplate;
+    }
+
+    static readonly RenderTreeBuilder InspectRenderTreeBuilder = new();
+    private static Type GetComponentType(RenderFragment renderFragment)
+    {
+        // Consider reworking if https://github.com/dotnet/aspnetcore/issues/17200 is implemented.
+        try
         {
-            var componentType = GetComponentType(_renderFragment((TItem)item));
+            renderFragment(InspectRenderTreeBuilder);
+            var frames = InspectRenderTreeBuilder.GetFrames();
 
-            if (!_dataTemplates.TryGetValue(componentType, out var dataTemplate))
+            for (var i = 0; i < frames.Count; i++)
             {
-                var groupIndex = _addGroupFunc();
-                dataTemplate = new MC.DataTemplate(() => _addRootToGroupFunc(groupIndex));
-                _dataTemplates[componentType] = dataTemplate;
+                if (frames.Array[i].FrameType == RenderTreeFrameType.Component)
+                {
+                    return frames.Array[i].ComponentType;
+                }
             }
 
-            return dataTemplate;
+            throw new InvalidOperationException("RenderFragment does not contain any components.");
         }
-
-        static readonly RenderTreeBuilder InspectRenderTreeBuilder = new();
-        private static Type GetComponentType(RenderFragment renderFragment)
+        finally
         {
-            // Consider reworking if https://github.com/dotnet/aspnetcore/issues/17200 is implemented.
-            try
-            {
-                renderFragment(InspectRenderTreeBuilder);
-                var frames = InspectRenderTreeBuilder.GetFrames();
-
-                for (var i = 0; i < frames.Count; i++)
-                {
-                    if (frames.Array[i].FrameType == RenderTreeFrameType.Component)
-                    {
-                        return frames.Array[i].ComponentType;
-                    }
-                }
-
-                throw new InvalidOperationException("RenderFragment does not contain any components.");
-            }
-            finally
-            {
-                InspectRenderTreeBuilder.Clear();
-            }
+            InspectRenderTreeBuilder.Clear();
         }
     }
-}
+}
diff --git a/src/BlazorBindings.Maui/Elements/Internal/DataTemplates/SyncDataTemplateItemsComponent.cs b/src/BlazorBindings.Maui/Elements/Internal/DataTemplates/SyncDataTemplateItemsComponent.cs
@@ -46,35 +46,35 @@ public MC.BindableObject AddTemplateRoot(TItem initialItem)
     void INonPhysicalChild.SetParent(object parentElement)
     {
         var parent = (TControl)parentElement;
-        var dataTemplate = new DataTemplateSelector(AddTemplateRoot);
+        var dataTemplate = new DataTemplateSelector<TItem>(AddTemplateRoot);
         SetDataTemplateAction(parent, dataTemplate);
     }
 
     void INonPhysicalChild.RemoveFromParent(object parentElement) { }
     object IElementHandler.TargetElement => null;
     void IContainerElementHandler.AddChild(object child, int physicalSiblingIndex) { }
     void IContainerElementHandler.RemoveChild(object child, int physicalSiblingIndex) { }
+}
 
-    // In order to be able to render the item synchronously, we need to have an item upfront, before the render.
-    // Unfortunately, regular DataTemplate does not have an access to the item, it is set set BindingContext afterwards.
-    // In order to workaround this issue, we use a DataTemplateSelector, which returns the same DataTemplate. But we're able
-    // to store the item from OnSelectTemplate method, which is used to render the item in DataTemplate.
-    class DataTemplateSelector : MC.DataTemplateSelector
-    {
-        private readonly MC.DataTemplate _dataTemplate;
-        private readonly Func<TItem, MC.BindableObject> _loadTemplate;
-        private TItem _initialItem;
+// In order to be able to render the item synchronously, we need to have an item upfront, before the render.
+// Unfortunately, regular DataTemplate does not have an access to the item, it is set set BindingContext afterwards.
+// In order to workaround this issue, we use a DataTemplateSelector, which returns the same DataTemplate. But we're able
+// to store the item from OnSelectTemplate method, which is used to render the item in DataTemplate.
+file class DataTemplateSelector<TItem> : MC.DataTemplateSelector
+{
+    private readonly MC.DataTemplate _dataTemplate;
+    private readonly Func<TItem, MC.BindableObject> _loadTemplate;
+    private TItem _initialItem;
 
-        public DataTemplateSelector(Func<TItem, MC.BindableObject> loadTemplate)
-        {
-            _loadTemplate = loadTemplate;
-            _dataTemplate = new MC.DataTemplate(() => _loadTemplate(_initialItem));
-        }
+    public DataTemplateSelector(Func<TItem, MC.BindableObject> loadTemplate)
+    {
+        _loadTemplate = loadTemplate;
+        _dataTemplate = new MC.DataTemplate(() => _loadTemplate(_initialItem));
+    }
 
-        protected override MC.DataTemplate OnSelectTemplate(object item, MC.BindableObject container)
-        {
-            _initialItem = (TItem)item;
-            return _dataTemplate;
-        }
+    protected override MC.DataTemplate OnSelectTemplate(object item, MC.BindableObject container)
+    {
+        _initialItem = (TItem)item;
+        return _dataTemplate;
     }
-}
+}