Use Node class from monkey.util in parser

Also simplify rules for list expressions.

1 files changed, 2 insertions, 2 deletions

diff --git a/monkey/graph.py b/monkey/graph.py
index 5bf78ec..3e1d3a2 100644
--- a/monkey/graph.py
+++ b/monkey/graph.py
@@ -1,10 +1,10 @@
 #!/usr/bin/python3
 
 class Node(object):
-    def __init__(self, data):
+    def __init__(self, data, eout=None):
         self.data = data
         self.ein = []
-        self.eout = []
+        self.eout = eout if eout else []
 
     # (Re-)insert a child node [target] to [self] at index [idx] (or as the
     # rightmost child if index is not given). Also append [self] to the list of