From b552139554ea7807514fcc3a3726c45bd8cfff21 Mon Sep 17 00:00:00 2001
From: Beni von Cheni <benjaminlchen@gmail.com>
Date: Sat, 16 Mar 2019 01:19:44 -0400
Subject: [PATCH] stream: reduce internal usage of public require of util
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PR-URL: https://github.com/nodejs/node/pull/26698
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 lib/internal/js_stream_socket.js       | 3 +--
 lib/internal/streams/buffer_list.js    | 2 +-
 lib/internal/streams/lazy_transform.js | 4 ++--
 lib/stream.js                          | 2 +-
 4 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/lib/internal/js_stream_socket.js b/lib/internal/js_stream_socket.js
index 038aa56c4288c6..abfea278359640 100644
--- a/lib/internal/js_stream_socket.js
+++ b/lib/internal/js_stream_socket.js
@@ -1,11 +1,10 @@
 'use strict';
 
 const assert = require('internal/assert');
-const util = require('util');
 const { Socket } = require('net');
 const { JSStream } = internalBinding('js_stream');
 const uv = internalBinding('uv');
-const debug = util.debuglog('stream_socket');
+const debug = require('internal/util/debuglog').debuglog('stream_socket');
 const { owner_symbol } = require('internal/async_hooks').symbols;
 const { ERR_STREAM_WRAP } = require('internal/errors').codes;
 
diff --git a/lib/internal/streams/buffer_list.js b/lib/internal/streams/buffer_list.js
index aa254309a03a5c..e0ba6e885cb60e 100644
--- a/lib/internal/streams/buffer_list.js
+++ b/lib/internal/streams/buffer_list.js
@@ -1,7 +1,7 @@
 'use strict';
 
 const { Buffer } = require('buffer');
-const { inspect } = require('util');
+const { inspect } = require('internal/util/inspect');
 
 function copyBuffer(src, target, offset) {
   Buffer.prototype.copy.call(src, target, offset);
diff --git a/lib/internal/streams/lazy_transform.js b/lib/internal/streams/lazy_transform.js
index c4d8c64b3dd041..7fc7f899c606cb 100644
--- a/lib/internal/streams/lazy_transform.js
+++ b/lib/internal/streams/lazy_transform.js
@@ -4,7 +4,6 @@
 'use strict';
 
 const stream = require('stream');
-const util = require('util');
 
 const {
   getDefaultEncoding
@@ -17,7 +16,8 @@ function LazyTransform(options) {
   this.writable = true;
   this.readable = true;
 }
-util.inherits(LazyTransform, stream.Transform);
+Object.setPrototypeOf(LazyTransform.prototype, stream.Transform.prototype);
+Object.setPrototypeOf(LazyTransform, stream.Transform);
 
 function makeGetter(name) {
   return function() {
diff --git a/lib/stream.js b/lib/stream.js
index dfe61aaf09d95d..97c86f7d6faad9 100644
--- a/lib/stream.js
+++ b/lib/stream.js
@@ -43,7 +43,7 @@ Stream.Stream = Stream;
 
 // Internal utilities
 try {
-  const types = require('util').types;
+  const types = require('internal/util/types');
   if (types && typeof types.isUint8Array === 'function') {
     Stream._isUint8Array = types.isUint8Array;
   } else {