Create parser for chain (dot operator)

smnp/ast/node/operator.py

@@ -6,6 +6,44 @@ from smnp.error.syntax import SyntaxException
 from smnp.token.type import TokenType
 
 
+class BinaryOperator(Node):
+    def __init__(self, pos):
+        super().__init__(pos)
+        self.children = [NoneNode(), NoneNode(), NoneNode()]
+
+    @property
+    def left(self):
+        return self[0]
+
+    @left.setter
+    def left(self, value):
+        self[0] = value
+
+    @property
+    def operator(self):
+        return self[1]
+
+    @operator.setter
+    def operator(self, value):
+        self[1] = value
+
+    @property
+    def right(self):
+        return self[2]
+
+    @right.setter
+    def right(self, value):
+        self[2] = value
+
+    @classmethod
+    def withValues(cls, left, operator, right):
+        node = cls(operator.pos)
+        node.left = left
+        node.operator = operator
+        node.right = right
+        return node
+
+
 class LeftAssociativeOperatorNode(ExpressionNode):
     def __init__(self, pos):
         super().__init__(pos)
@@ -67,7 +105,7 @@ class LeftAssociativeOperatorNode(ExpressionNode):
         )
 
 
-class OperatorNode(Node):
+class Operator(Node):
     def __init__(self, pos):
         super().__init__(pos)
         self.children = [None]