Safe constructors for fs.ReadStream and fs.WriteStream

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/fs.js b/lib/fs.js
index 4e1d8b9f66..8f09235b56 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -598,6 +598,8 @@ fs.createReadStream = function(path, options) {
 };
 
 var ReadStream = fs.ReadStream = function(path, options) {
+  if (!(this instanceof ReadStream)) return new ReadStream(path, options);
+
   events.EventEmitter.call(this);
 
   var self = this;
@@ -794,6 +796,8 @@ fs.createWriteStream = function(path, options) {
 };
 
 var WriteStream = fs.WriteStream = function(path, options) {
+  if (!(this instanceof WriteStream)) return new WriteStream(path, options);
+
   events.EventEmitter.call(this);
 
   this.path = path;