From 4b0b76cd3c35a977f2e7bdf16a5fb919c64be88a Mon Sep 17 00:00:00 2001
From: klawil <klawil@a9.com>
Date: Thu, 10 May 2018 16:51:32 -0700
Subject: [PATCH] Prevent duplicate edges in the resulting graph

---
 index.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 62ac2ef..cea9712 100644
--- a/index.js
+++ b/index.js
@@ -19,7 +19,9 @@ const mapTupleToString = t => `"${t[0]}" -> "${t[1]}"`
 
 parser(input, tuples => {
     const stream = fs.openSync('callgraph.dot', 'w');
-    const callsString = tuples.map(mapTupleToString).join(`\n`)
+    let calls = tuples.map(mapTupleToString);
+    calls = calls.filter((call, index) => calls.indexOf(call) === index);
+    const callsString = calls.join(`\n`)
     const data = `
 digraph test{
 overlap=scalexy;