buffer: alias subarray and slice

benjamingr · BethGriggs · commit 89c327387b14 · 2022-01-24T17:35:54.000Z
PR-URL: #41596 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
diff --git a/lib/buffer.js b/lib/buffer.js
@@ -1112,14 +1112,18 @@ function adjustOffset(offset, length){
 return NumberIsNaN(offset) ? 0 : length;
 }
 
-Buffer.prototype.slice = function slice(start, end){
+Buffer.prototype.subarray = function subarray(start, end){
 const srcLength = this.length;
 start = adjustOffset(start, srcLength);
 end = end !== undefined ? adjustOffset(end, srcLength) : srcLength;
 const newLength = end > start ? end - start : 0;
 return new FastBuffer(this.buffer, this.byteOffset + start, newLength);
 };
 
+Buffer.prototype.slice = function slice(start, end){
+ return this.subarray(start, end);
+};
+
 function swap(b, n, m){
 const i = b[n];
 b[n] = b[m];

-Original file line number
+Diff line change
 returnNumberIsNaN(offset) ? 0 : length;
+}
 -Buffer.prototype.slice=functionslice(start,end){
 +Buffer.prototype.subarray=functionsubarray(start,end){
 constsrcLength=this.length;
 start=adjustOffset(start,srcLength);
 end=end!==undefined ? adjustOffset(end,srcLength) : srcLength;
 constnewLength=end>start ? end-start : 0;
 returnnewFastBuffer(this.buffer,this.byteOffset+start,newLength);
 };
 +Buffer.prototype.slice=functionslice(start,end){
 +returnthis.subarray(start,end);
 +};
++
 functionswap(b,n,m){
 consti=b[n];
 b[n]=b[m];