restructure fs

lang/Nub.Lang/Frontend/Parsing/BinaryExpressionNode.cs

@@ -0,0 +1,22 @@
+namespace Nub.Lang.Frontend.Parsing;
+
+public class BinaryExpressionNode(ExpressionNode left, BinaryExpressionOperator @operator, ExpressionNode right) : ExpressionNode
+{
+    public ExpressionNode Left { get; } = left;
+    public BinaryExpressionOperator Operator { get; } = @operator;
+    public ExpressionNode Right { get; } = right;
+}
+
+public enum BinaryExpressionOperator
+{
+    Equal,
+    NotEqual,
+    GreaterThan,
+    GreaterThanOrEqual,
+    LessThan,
+    LessThanOrEqual,
+    Plus,
+    Minus,
+    Multiply,
+    Divide
+}