Supoort void methods in Expose attributes

Appegy.Union.Generator~/Appegy.Union.Generator.Shapes/Shapes/Shape.cs

@@ -5,6 +5,7 @@ namespace Appegy.Union.Generator.Shapes;
 public interface IShape
 {
     double Area { get; }
+    void LogArea();
 }
 
 [Union(typeof(Circle), typeof(Rectangle), typeof(Hexagon))]

Appegy.Union.Generator~/Appegy.Union.Generator.Shapes/Shapes/Variants/Circle.cs

@@ -8,6 +8,11 @@ public readonly struct Circle(double radius) : IShape, IEquatable<Circle>
 
     public double Area => Math.PI * Radius * Radius;
 
+    public void LogArea()
+    {
+        Console.WriteLine($"{nameof(Circle)} area: {Area}");
+    }
+
     public override string ToString()
     {
         return nameof(Circle);

Appegy.Union.Generator~/Appegy.Union.Generator.Shapes/Shapes/Variants/Hexagon.cs

@@ -8,6 +8,11 @@ public readonly struct Hexagon(double sideLength) : IShape, IEquatable<Hexagon>
 
     public double Area => 3 * Math.Sqrt(3) * SideLength * SideLength / 2;
 
+    public void LogArea()
+    {
+        Console.WriteLine($"{nameof(Hexagon)} area: {Area}");
+    }
+
     public override string ToString()
     {
         return nameof(Hexagon);

Appegy.Union.Generator~/Appegy.Union.Generator.Shapes/Shapes/Variants/Rectangle.cs

@@ -8,6 +8,11 @@ public readonly struct Rectangle(double width, double height) : IShape, IEquatab
     public double Height { get; } = height;
     public double Area => Width * Height;
 
+    public void LogArea()
+    {
+        Console.WriteLine($"{nameof(Rectangle)} area: {Area}");
+    }
+
     public override string ToString()
     {
         return nameof(Rectangle);

Appegy.Union.Generator~/Appegy.Union.Generator/Expose/Implementations/ImplementMethods.cs

@@ -165,7 +165,14 @@ private static void GenerateMethodBody(IndentedTextWriter codeWriter, IMethodSym
 
             codeWriter.Write("(");
             GenerateMethodArguments(codeWriter, methodSymbol);
-            codeWriter.WriteLine(");");
+            codeWriter.Write(");");
+
+            if (methodSymbol.ReturnsVoid)
+            {
+                codeWriter.Write(" break;");
+            }
+
+            codeWriter.WriteLine();
         }
 
         codeWriter.WriteLine("default: throw new global::System.InvalidOperationException($\"Unknown type of union: {_type}\");");