From: Nikolai Vavilov <vvnicholas@gmail.com>
Date: Fri, 1 May 2020 18:14:40 +0000 (+0300)
Subject: Remove descending copy from end
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=5c5325913cb3860278ff761f8c8d4a77132cffd7;p=buffer.git

Remove descending copy from end

Uint8Array.prototype.set handles overlapping ranges on its own.
---

diff --git a/index.js b/index.js
index e87bfaa..9743883 100644
--- a/index.js
+++ b/index.js
@@ -1543,11 +1543,6 @@ Buffer.prototype.copy = function copy (target, targetStart, start, end) {
   if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
     // Use built-in when available, missing from IE11
     this.copyWithin(targetStart, start, end)
-  } else if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (var i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start]
-    }
   } else {
     Uint8Array.prototype.set.call(
       target,