From 57d53a47e86c310f99e991ea0afb4a3790a54751 Mon Sep 17 00:00:00 2001
From: Karl Skomski <karl@skomski.com>
Date: Mon, 18 Jun 2012 11:03:32 +0200
Subject: [PATCH] Use parent SlowBuffer, if any, when Buffer is sliced

Closes #3416
Closes #3477
---
 lib/buffer.js              | 6 +++++-
 test/simple/test-buffer.js | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/buffer.js b/lib/buffer.js
index ee81eac8016..53f484c56dc 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -210,8 +210,12 @@ function Buffer(subject, encoding, offset) {
 
   // Are we slicing?
   if (typeof offset === 'number') {
+    if (!Buffer.isBuffer(subject)) {
+      throw new Error('First argument must be a Buffer when slicing');
+    }
+
     this.length = coerce(encoding);
-    this.parent = subject;
+    this.parent = subject.parent ? subject.parent : subject;
     this.offset = offset;
   } else {
     // Find the length
diff --git a/test/simple/test-buffer.js b/test/simple/test-buffer.js
index b64a6e5933c..847fbc58421 100644
--- a/test/simple/test-buffer.js
+++ b/test/simple/test-buffer.js
@@ -724,3 +724,6 @@ var a = Buffer(3);
 var b = Buffer('xxx');
 a.write('aaaaaaaa', 'base64');
 assert.equal(b.toString(), 'xxx');
+
+// issue GH-3416
+Buffer(Buffer(0), 0, 0);