1 files changed, 10 insertions, 0 deletions
diff --git a/node_modules/callsite/index.js b/node_modules/callsite/index.js
new file mode 100644
index 000000000..d3ee6f8cf
--- /dev/null
+++ b/node_modules/callsite/index.js
@@ -0,0 +1,10 @@
+
+module.exports = function(){
+  var orig = Error.prepareStackTrace;
+  Error.prepareStackTrace = function(_, stack){ return stack; };
+  var err = new Error;
+  Error.captureStackTrace(err, arguments.callee);
+  var stack = err.stack;
+  Error.prepareStackTrace = orig;
+  return stack;
+};