From b36c726206eca78ae784c2b227d556a6dbc9935b Mon Sep 17 00:00:00 2001
From: Weijia Wang <381152119@qq.com>
Date: Mon, 20 Nov 2017 17:13:50 +0800
Subject: [PATCH] stream: improve the error message of `ERR_INVALID_ARG_TYPE`

The `expected` argument of `ERR_INVALID_ARG_TYPE` can be an
array, which is better than a single string.

PR-URL: https://github.com/nodejs/node/pull/17145
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
---
 lib/_stream_readable.js | 2 +-
 lib/_stream_writable.js | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 8e38030da85e4b..01d886e6cab2eb 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -285,7 +285,7 @@ function chunkInvalid(state, chunk) {
       chunk !== undefined &&
       !state.objectMode) {
     er = new errors.TypeError('ERR_INVALID_ARG_TYPE',
-                              'chunk', 'string/Buffer/Uint8Array');
+                              'chunk', ['string', 'Buffer', 'Uint8Array']);
   }
   return er;
 }
diff --git a/lib/_stream_writable.js b/lib/_stream_writable.js
index 1735fafb5f34d3..02481739250635 100644
--- a/lib/_stream_writable.js
+++ b/lib/_stream_writable.js
@@ -252,7 +252,8 @@ function validChunk(stream, state, chunk, cb) {
   } else if (typeof chunk !== 'string' &&
              chunk !== undefined &&
              !state.objectMode) {
-    er = new errors.TypeError('ERR_INVALID_ARG_TYPE', 'chunk', 'string/buffer');
+    er = new errors.TypeError('ERR_INVALID_ARG_TYPE', 'chunk',
+                              ['string', 'Buffer']);
   }
   if (er) {
     stream.emit('error', er);