From 84466759a1ea01460bc072dd68664453ad53d383 Mon Sep 17 00:00:00 2001
From: David Worms <david@adaltas.com>
Date: Wed, 4 Nov 2020 18:26:54 +0100
Subject: [PATCH] encoding: return buffer when null or false

---
 lib/ResizeableBuffer.js     |  8 +++++---
 lib/es5/ResizeableBuffer.js |  8 +++++---
 test/ResizableBuffer.coffee |  2 +-
 test/option.encoding.coffee | 10 ++++++++++
 4 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/lib/ResizeableBuffer.js b/lib/ResizeableBuffer.js
index f69c30c..467422c 100644
--- a/lib/ResizeableBuffer.js
+++ b/lib/ResizeableBuffer.js
@@ -48,9 +48,11 @@ class ResizeableBuffer{
     this.buf = buf
   }
   toString(encoding){
-    // console.log('!!', encoding)
-    // return this.buf.slice(0, this.length)
-    return this.buf.slice(0, this.length).toString(encoding)
+    if(encoding){
+      return this.buf.slice(0, this.length).toString(encoding)
+    }else{
+      return Uint8Array.prototype.slice.call(this.buf.slice(0, this.length))
+    }
   }
   toJSON(){
     return this.toString('utf8')
diff --git a/lib/es5/ResizeableBuffer.js b/lib/es5/ResizeableBuffer.js
index 993d02b..8df1db3 100644
--- a/lib/es5/ResizeableBuffer.js
+++ b/lib/es5/ResizeableBuffer.js
@@ -78,9 +78,11 @@ var ResizeableBuffer = /*#__PURE__*/function () {
   }, {
     key: "toString",
     value: function toString(encoding) {
-      // console.log('!!', encoding)
-      // return this.buf.slice(0, this.length)
-      return this.buf.slice(0, this.length).toString(encoding);
+      if (encoding) {
+        return this.buf.slice(0, this.length).toString(encoding);
+      } else {
+        return Uint8Array.prototype.slice.call(this.buf.slice(0, this.length));
+      }
     }
   }, {
     key: "toJSON",
diff --git a/test/ResizableBuffer.coffee b/test/ResizableBuffer.coffee
index 3b5ed31..11a2a3f 100644
--- a/test/ResizableBuffer.coffee
+++ b/test/ResizableBuffer.coffee
@@ -84,7 +84,7 @@ describe 'ResizeableBuffer', ->
         rb.append(chr.charCodeAt())
       rb.prepend(Buffer.from('abc'))
       rb.length.should.eql 6
-      rb.toString().should.eql 'abcdef'
+      rb.toString('utf8').should.eql 'abcdef'
 
     it 'throw invalid state if size equal buffer size', ->
       try
diff --git a/test/option.encoding.coffee b/test/option.encoding.coffee
index eee3452..4c89991 100644
--- a/test/option.encoding.coffee
+++ b/test/option.encoding.coffee
@@ -46,6 +46,16 @@ describe 'Option `encoding`', ->
           [ '1', '2 "3" 4', '5' ]
         ] unless err
         next err
+    
+    it 'null return buffer', (next) ->
+      parse Buffer.from( 'a,b\n1,2' ),
+        encoding: null
+      , (err, data) ->
+        data.should.eql [
+          [ Buffer.from('a'), Buffer.from('b') ]
+          [ Buffer.from('1'), Buffer.from('2') ]
+        ] unless err
+        next err
   
   describe 'with bom', ->