lexing and parsing unary operators

Compiler/Parser/Nodes/NodeType.cs

@@ -5,6 +5,7 @@ namespace Compiler.Parser.Nodes
         ProgramNode,
         FunctionNode,
         ReturnStatementNode,
-        ExpressionNode
+        ExpressionNode,
+        
     }
 }

Compiler/Parser/Nodes/OperatorType.cs

@@ -0,0 +1,10 @@
+namespace Compiler.Parser.Nodes
+{
+    public enum OperatorType
+    {
+        //unary operators
+        Negation,
+        BitwiseComplement,
+        LogicalNegation,
+    }
+}

Compiler/Parser/Nodes/UnaryOperatorNode.cs

@@ -0,0 +1,14 @@
+namespace Compiler.Parser.Nodes
+{
+    public sealed class UnaryOperatorNode : Node
+    {
+        public override NodeType NodeType { get; set; }
+        public OperatorType OperatorType { get; set; }
+
+        public UnaryOperatorNode(OperatorType operatorType)
+        {
+            OperatorType = operatorType;
+            NodeType = NodeType.ExpressionNode;
+        }
+    }
+}