Create ast package

smnp/ast/node/function.py

@@ -0,0 +1,20 @@
+from smnp.ast.node.model import Node
+
+
+class FunctionCallNode(Node):
+    def __init__(self, identifier, arguments, parent, pos):
+        Node.__init__(self, parent, pos)
+        self.children.extend([identifier, arguments])
+
+        self.identifier = self.children[0]
+        self.arguments = self.children[1]
+
+
+class FunctionDefinitionNode(Node):
+    def __init__(self, name, parameters, body, parent, pos):
+        Node.__init__(self, parent, pos)
+        self.children.extend([name, parameters, body])
+
+        self.name = self.children[0]
+        self.parameters = self.children[1]
+        self.body = self.children[2]