From c55c1b8cb32510f92bd33d7c833364ecd3964dea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=BA=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20?=
 =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=B8=D1=82=D0=B0=20=D0=90=D0=BD=D0=B4=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B5=D0=B2=D0=B8=D1=87?= <chalkerx@gmail.com>
Date: Sat, 23 Jan 2021 00:28:40 +0300
Subject: [PATCH] Avoid hitting __proto__

PR-URL: https://github.com/isaacs/node-graceful-fs/pull/201
Credit: @ChALkeR
Close: #201
Reviewed-by: @ljharb, @coreyfarrell
---
 clone.js     | 6 +++++-
 polyfills.js | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/clone.js b/clone.js
index 028356c..dff3cc8 100644
--- a/clone.js
+++ b/clone.js
@@ -2,12 +2,16 @@
 
 module.exports = clone
 
+var getPrototypeOf = Object.getPrototypeOf || function (obj) {
+  return obj.__proto__
+}
+
 function clone (obj) {
   if (obj === null || typeof obj !== 'object')
     return obj
 
   if (obj instanceof Object)
-    var copy = { __proto__: obj.__proto__ }
+    var copy = { __proto__: getPrototypeOf(obj) }
   else
     var copy = Object.create(null)
 
diff --git a/polyfills.js b/polyfills.js
index 3dd7074..56d08d1 100644
--- a/polyfills.js
+++ b/polyfills.js
@@ -133,7 +133,7 @@ function patch (fs) {
     }
 
     // This ensures `util.promisify` works as it does for native `fs.read`.
-    read.__proto__ = fs$read
+    if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read)
     return read
   })(fs.read)