From 7c45bf2aebbd7ced77cc209d69e20336cc619c75 Mon Sep 17 00:00:00 2001
From: Sarah Tattersall <sarah.tattersall09@imperial.ac.uk>
Date: Sun, 23 Feb 2014 17:40:27 +0000
Subject: [PATCH] Fixes #25

* Passed null into ExpressionEvaluator, replaced with Petri net
* Tested manually, seems to work
---
 .../main/java/pipe/gui/widgets/TransitionFunctionEditor.java | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pipe-gui/src/main/java/pipe/gui/widgets/TransitionFunctionEditor.java b/pipe-gui/src/main/java/pipe/gui/widgets/TransitionFunctionEditor.java
index df027dba..a91f4eb9 100644
--- a/pipe-gui/src/main/java/pipe/gui/widgets/TransitionFunctionEditor.java
+++ b/pipe-gui/src/main/java/pipe/gui/widgets/TransitionFunctionEditor.java
@@ -33,7 +33,7 @@ public TransitionFunctionEditor(TransitionEditorPanel transitionEditorPanel,
         init(petriNet);
     }
 
-    private void init(PetriNet petriNet) {
+    private void init(final PetriNet petriNet) {
 
         final JTextArea function = new JTextArea();
         function.setText(transitionController.getRateExpr());
@@ -80,8 +80,7 @@ public void actionPerformed(java.awt.event.ActionEvent evt) {
                         exit();
                         return;
                     }
-                    //TODD: DONT PASS NULL
-                    ExprEvaluator parser = new ExprEvaluator(null);
+                    ExprEvaluator parser = new ExprEvaluator(petriNet);
                     if (parser.parseAndEvalExprForTransition(func) != null) {
                         _editor.setRate(func);
                         //transitionController.setRate(func);