From f47a29f922bdeca8748abdc4c9b5dc6f60a98784 Mon Sep 17 00:00:00 2001
From: Thomas Aylott <aylott@fb.com>
Date: Wed, 5 Aug 2015 12:31:51 -0700
Subject: [PATCH] [react-packager] Fixes stack traces

Summary:
TransformErrors weren't showing stack traces, making it hard to debug problems in transformer code.
---
 react-packager/src/JSTransformer/index.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/react-packager/src/JSTransformer/index.js b/react-packager/src/JSTransformer/index.js
index 7c20e10e..0cc7f2c6 100644
--- a/react-packager/src/JSTransformer/index.js
+++ b/react-packager/src/JSTransformer/index.js
@@ -121,7 +121,9 @@ Transformer.prototype.loadFileAndTransform = function(filePath) {
   });
 };
 
-function TransformError() {}
+function TransformError() {
+  Error.captureStackTrace && Error.captureStackTrace(this, TransformError);
+}
 util.inherits(TransformError, SyntaxError);
 
 function formatError(err, filename, source) {