fix interpolated components graphed as text control

Author: quinchs

src/Discord.Net.ComponentDesigner.Generator/Graph/CXGraph.cs

@@ -252,6 +252,7 @@ GraphInitializationContext context
             var current = nodes[i];
 
             if (
+                !IsInterpolatedComponent(current, context) &&
                 TextControlElement.TryCreate(
                     context,
                     nodes,
@@ -305,6 +306,22 @@ GraphInitializationContext context
 
         foreach (var diagnostic in diagnostics)
             context.Diagnostics.Add(diagnostic);
+
+        static bool IsInterpolatedComponent(
+            ICXNode node,
+            GraphInitializationContext context
+        ) => node switch
+        {
+            CXValue.Interpolation { InterpolationIndex: var index } => ComponentBuilderKind.IsValidComponentBuilderType(
+                context.CX.InterpolationInfos[index].Symbol,
+                context.Compilation
+            ),
+            CXToken { InterpolationIndex: { } index } => ComponentBuilderKind.IsValidComponentBuilderType(
+                context.CX.InterpolationInfos[index].Symbol,
+                context.Compilation
+            ),
+            _ => false
+        };
     }
 
     private static IEnumerable<GraphNode> CreateNodes(
@@ -381,7 +398,7 @@ GraphInitializationContext context
             }
 
             if (
-                element.OpeningTag.Identifier is CXIdentifier.Interpolated || 
+                element.OpeningTag.Identifier is CXIdentifier.Interpolated ||
                 !ComponentNode.TryGetNode(element.Identifier, out var componentNode)
             )
             {

src/Discord.Net.ComponentDesigner.Generator/Utils/TypeUtils.cs

@@ -20,7 +20,7 @@ public static bool IsInTypeTree(this ITypeSymbol symbol, ITypeSymbol? other)
     {
         if (other is null) return false;
 
-        if (symbol.TypeKind is TypeKind.Class)
+        if (symbol.TypeKind is TypeKind.Class && other.TypeKind is TypeKind.Class)
         {
             var current = symbol;
 
@@ -35,7 +35,7 @@ public static bool IsInTypeTree(this ITypeSymbol symbol, ITypeSymbol? other)
         }
 
         return other.Equals(symbol, SymbolEqualityComparer.Default) ||
-               other.AllInterfaces.Contains(symbol, SymbolEqualityComparer.Default);
+               symbol.AllInterfaces.Contains(other, SymbolEqualityComparer.Default);
     }
 
     public static bool TryGetEnumerableType(this ITypeSymbol? symbol, out ITypeSymbol inner)

tests/ComponentTests/MediaGalleryTests.cs

@@ -8,6 +8,33 @@ namespace UnitTests.ComponentTests;
 
 public sealed class MediaGalleryTests(ITestOutputHelper output) : BaseComponentTest(output)
 {
+    [Fact]
+    public void InterpolatedGallery()
+    {
+        Graph(
+            """
+            <text>Foo</text>
+            {new MediaGalleryBuilder(attachments.Select(x => new MediaGalleryItemProperties(new(x))))}
+            """,
+            pretext: "IReadOnlyList<string> attachments = null!;"
+        );
+        {
+            Node<TextDisplayComponentNode>();
+            Node<InterleavedComponentNode>();
+
+            Validate(hasErrors: false);
+
+            Renders(
+                """
+                new global::Discord.TextDisplayBuilder(
+                    content: "Foo"
+                ),
+                designer.GetValue<global::Discord.MediaGalleryBuilder>(0)
+                """
+            );
+        }
+    }
+
     [Fact]
     public void EmptyGallery()
     {