diff --git a/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/GreenNode.Debug.g.cs b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/GreenNode.Debug.g.cs
new file mode 100644
index 0000000..1cbf49a
--- /dev/null
+++ b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/GreenNode.Debug.g.cs
@@ -0,0 +1,38 @@
+// GreenBase = global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode
+// RedBase = global::Tsu.Trees.RedGreen.Sample.SampleNode
+// KindEnum = global::Tsu.Trees.RedGreen.Sample.SampleKind
+// CreateVisitors = True
+// CreateWalker = True
+// CreateRewriter = True
+// Root = global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode
+// global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode
+//     Children:
+//     ExtraData:
+//         global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = False)
+//     global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample
+//         Children:
+//         ExtraData:
+//             global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = True)
+//         global::Tsu.Trees.RedGreen.Sample.Internal.FunctionCallExpressionSample
+//             Children:
+//                 global::Tsu.Trees.RedGreen.Sample.Internal.IdentifierExpressionSample (Name = identifier, IsOptional = False, PassToBase = False)
+//                 global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample (Name = firstArg, IsOptional = False, PassToBase = False)
+//                 global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample (Name = secondArg, IsOptional = True, PassToBase = False)
+//             ExtraData:
+//                 global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = True)
+//         global::Tsu.Trees.RedGreen.Sample.Internal.BinaryOperationExpressionSample
+//             Children:
+//                 global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample (Name = _left, IsOptional = False, PassToBase = False)
+//                 global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample (Name = _right, IsOptional = False, PassToBase = False)
+//             ExtraData:
+//                 global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = True)
+//         global::Tsu.Trees.RedGreen.Sample.Internal.NumericalLiteralExpressionSample
+//             Children:
+//             ExtraData:
+//                 global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = True)
+//                 double (Name = _value, IsOptional = False, PassToBase = False)
+//         global::Tsu.Trees.RedGreen.Sample.Internal.IdentifierExpressionSample
+//             Children:
+//             ExtraData:
+//                 global::Tsu.Trees.RedGreen.Sample.SampleKind (Name = _kind, IsOptional = False, PassToBase = True)
+//                 string (Name = _name, IsOptional = False, PassToBase = False)
diff --git a/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Initialized.g.cs b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Initialized.g.cs
new file mode 100644
index 0000000..631a29a
--- /dev/null
+++ b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Initialized.g.cs
@@ -0,0 +1 @@
+// <auto-generated />
\ No newline at end of file
diff --git a/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Sample.Internal.g.cs b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Sample.Internal.g.cs
new file mode 100644
index 0000000..0937437
--- /dev/null
+++ b/Tsu.Trees.RedGreen/sample/Generated/Tsu.Trees.RedGreen.SourceGenerator/Tsu.Trees.RedGreen.SourceGenerator.Generator/Sample.Internal.g.cs
@@ -0,0 +1,140 @@
+// <auto-generated />
+
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+
+namespace Tsu.Trees.RedGreen.Sample.Internal
+{
+    abstract partial class GreenNode : global::Tsu.Trees.RedGreen.Internal.IGreenNode<global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode, global::Tsu.Trees.RedGreen.Sample.SampleNode, global::Tsu.Trees.RedGreen.Sample.SampleKind>
+    {
+        private readonly global::Tsu.Trees.RedGreen.Sample.SampleKind _kind;
+        private byte _slotCount;
+
+        protected GreenNode(global::Tsu.Trees.RedGreen.Sample.SampleKind kind)
+        {
+            this._kind = kind;
+        }
+
+        public global::Tsu.Trees.RedGreen.Sample.SampleKind Kind => this._kind;
+
+        public int SlotCount
+        {
+            get
+            {
+                int count = this._slotCount;
+                if (count == byte.MaxValue)
+                    count = this.GetSlotCount();
+                return count;
+            }
+            protected set => _slotCount = (byte) value;
+        }
+
+        public abstract global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode? GetSlot(int slot);
+
+        public global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode GetRequiredSlot(int slot)
+        {
+            var node = this.GetSlot(slot);
+            Debug.Assert((object)node != null)
+            return node;
+        }
+
+        protected virtual int GetSlotCount() => _slotCount;
+
+        public global::System.Collections.Generic.IEnumerable<global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode> ChildNodes()
+        {
+            var count = this.SlotCount;
+            for (var slot = 0; slot < count; slot++)
+                yield return this.GetRequiredSlot(slot);
+        }
+
+        public global::System.Collections.Generic.IEnumerable<global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode> EnumerateDescendants()
+        {
+            var stack = new Stack<global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode>(24);
+            stack.Push(this);
+
+            while (stack.Count > 0)
+            {
+                var current = stack.Pop();
+
+                yield return current;
+
+                foreach (var child in current.ChildNodes().Reverse())
+                {
+                    stack.Push(child);
+                }
+            }
+        }
+
+        public virtual bool IsEquivalentTo([NotNullWhen(true)] global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode? other)
+        {
+            if (this == other) return true;
+            if (other == null) return false;
+            if (this.Kind != other.Kind) return false;
+var n = this.SlotCount;
+            if (n != other.SlotCount) return false;
+
+            for (int i = 0; i < n; i++)
+            {
+                var thisChild = this.GetSlot(i);
+                var otherChild = other.GetSlot(i);
+                if (thisChild != null && otherChild != null && !thisChild.IsEquivalentTo(otherChild))
+                {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        public global::Tsu.Trees.RedGreen.Sample.SampleNode CreateRed() => this.CreateRed(null);
+        public abstract global::Tsu.Trees.RedGreen.Sample.SampleNode CreateRed(global::Tsu.Trees.RedGreen.Sample.SampleNode? parent);
+    }
+
+    abstract partial class ExpressionSample : global::Tsu.Trees.RedGreen.Sample.Internal.GreenNode
+    {
+        protected ExpressionSample(global::Tsu.Trees.RedGreen.Sample.SampleKind kind) : base(kind)
+        {
+        }
+    }
+
+    partial class IdentifierExpressionSample : global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample
+    {
+        internal IdentifierExpressionSample(global::Tsu.Trees.RedGreen.Sample.SampleKind kind, string name) : base(kind)
+        {
+            this.SlotCount = 0;
+            this._name = name;
+        }
+    }
+
+    partial class NumericalLiteralExpressionSample : global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample
+    {
+        internal NumericalLiteralExpressionSample(global::Tsu.Trees.RedGreen.Sample.SampleKind kind, double value) : base(kind)
+        {
+            this.SlotCount = 0;
+            this._value = value;
+        }
+    }
+
+    partial class BinaryOperationExpressionSample : global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample
+    {
+        internal BinaryOperationExpressionSample(global::Tsu.Trees.RedGreen.Sample.SampleKind kind, global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample left, global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample right) : base(kind)
+        {
+            this.SlotCount = 2;
+            this._left = left;
+            this._right = right;
+        }
+    }
+
+    partial class FunctionCallExpressionSample : global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample
+    {
+        internal FunctionCallExpressionSample(global::Tsu.Trees.RedGreen.Sample.SampleKind kind, global::Tsu.Trees.RedGreen.Sample.Internal.IdentifierExpressionSample identifier, global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample firstArg, global::Tsu.Trees.RedGreen.Sample.Internal.ExpressionSample secondArg) : base(kind)
+        {
+            this.SlotCount = 3;
+            this.identifier = identifier;
+            this.firstArg = firstArg;
+            this.secondArg = secondArg;
+        }
+    }
+}
+
diff --git a/Tsu.Trees.RedGreen/sample/Tree.cs b/Tsu.Trees.RedGreen/sample/Tree.cs
index 9097b62..7dbee9e 100644
--- a/Tsu.Trees.RedGreen/sample/Tree.cs
+++ b/Tsu.Trees.RedGreen/sample/Tree.cs
@@ -20,6 +20,7 @@ public abstract partial class SampleNode
 
     }
 }
+
 namespace Tsu.Trees.RedGreen.Sample.Internal
 {
     [GreenTreeRoot(typeof(SampleNode), "Sample", typeof(SampleKind), CreateRewriter = true, CreateVisitors = true, CreateWalker = true)]
@@ -34,20 +35,20 @@ internal abstract partial class ExpressionSample : GreenNode
     [GreenNode(SampleKind.IdentifierExpression)]
     internal sealed partial class IdentifierExpressionSample : ExpressionSample
     {
-        private readonly string name;
+        private readonly string _name;
     }
 
     [GreenNode(SampleKind.NumericalLiteralExpression)]
     internal sealed partial class NumericalLiteralExpressionSample : ExpressionSample
     {
-        private readonly double value;
+        private readonly double _value;
     }
 
     [GreenNode(SampleKind.AdditionExpression, SampleKind.DivisionExpression, SampleKind.MultiplicationExpression, SampleKind.SubtractionExpression)]
     internal sealed partial class BinaryOperationExpressionSample : ExpressionSample
     {
-        private readonly ExpressionSample left;
-        private readonly ExpressionSample right;
+        private readonly ExpressionSample _left;
+        private readonly ExpressionSample _right;
     }
 
     [GreenNode(SampleKind.FunctionCallExpression)]