From 641d3e60211631c2c680b3e63e8aa7acfa00e338 Mon Sep 17 00:00:00 2001
From: Yusuke Kawasaki <u-suke@kawa.net>
Date: Wed, 17 Oct 2018 11:02:40 +0900
Subject: [PATCH] re #98: Buffer.from() and Buffer.alloc()

node v4.5+ required
---
 lib/bufferish-buffer.js | 19 +++----------------
 lib/ext-unpacker.js     |  2 +-
 2 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/lib/bufferish-buffer.js b/lib/bufferish-buffer.js
index abbd985..1c2ca1e 100644
--- a/lib/bufferish-buffer.js
+++ b/lib/bufferish-buffer.js
@@ -3,21 +3,12 @@
 var Bufferish = require("./bufferish");
 var Buffer = Bufferish.global;
 
-var exports = module.exports = Bufferish.hasBuffer ? alloc(0) : [];
+var exports = module.exports = Buffer ? Buffer.alloc(0) : [];
 
-exports.alloc = Bufferish.hasBuffer && Buffer.alloc || alloc;
+exports.alloc = Buffer && Buffer.alloc;
 exports.concat = Bufferish.concat;
 exports.from = from;
 
-/**
- * @param size {Number}
- * @returns {Buffer|Uint8Array|Array}
- */
-
-function alloc(size) {
-  return new Buffer(size);
-}
-
 /**
  * @param value {Array|ArrayBuffer|Buffer|String}
  * @returns {Buffer}
@@ -38,9 +29,5 @@ function from(value) {
   }
 
   // Array-like to Buffer
-  if (Buffer.from && Buffer.from.length !== 1) {
-    return Buffer.from(value); // node v6+
-  } else {
-    return new Buffer(value); // node v4
-  }
+  return Buffer.from(value); // node v4.5+
 }
diff --git a/lib/ext-unpacker.js b/lib/ext-unpacker.js
index 03e525d..e0257e8 100644
--- a/lib/ext-unpacker.js
+++ b/lib/ext-unpacker.js
@@ -47,7 +47,7 @@ function setExtUnpackers(codec) {
   }
 
   if (Bufferish.hasBuffer) {
-    codec.addExtUnpacker(0x1B, unpackClass(Buffer));
+    codec.addExtUnpacker(0x1B, Buffer.from);
   }
 }