From 6ff53e35f39c605b71ad59e65659dcacc00fd087 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Wed, 2 Sep 2015 18:05:33 +0100
Subject: [PATCH] cap uids based on nodes at 20 characters - fixes #2225

---
 packages/babel-traverse/src/scope/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/babel-traverse/src/scope/index.js b/packages/babel-traverse/src/scope/index.js
index accbbb1f3d..844313e299 100644
--- a/packages/babel-traverse/src/scope/index.js
+++ b/packages/babel-traverse/src/scope/index.js
@@ -286,7 +286,7 @@ export default class Scope {
     var id = parts.join("$");
     id = id.replace(/^_/, "") || defaultName || "ref";
 
-    return this.generateUidIdentifier(id);
+    return this.generateUidIdentifier(id.slice(0, 20));
   }
 
   /**