--- /dev/null
+'use strict';
+var $ = require('../internals/export');
+var fails = require('../internals/fails');
+var ArrayBufferModule = require('../internals/array-buffer');
+var anObject = require('../internals/an-object');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var toLength = require('../internals/to-length');
+var speciesConstructor = require('../internals/species-constructor');
+
+var ArrayBuffer = ArrayBufferModule.ArrayBuffer;
+var DataView = ArrayBufferModule.DataView;
+var nativeArrayBufferSlice = ArrayBuffer.prototype.slice;
+
+var INCORRECT_SLICE = fails(function () {
+ return !new ArrayBuffer(2).slice(1, undefined).byteLength;
+});
+
+// `ArrayBuffer.prototype.slice` method
+// https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice
+$({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
+ slice: function slice(start, end) {
+ if (nativeArrayBufferSlice !== undefined && end === undefined) {
+ return nativeArrayBufferSlice.call(anObject(this), start); // FF fix
+ }
+ var length = anObject(this).byteLength;
+ var first = toAbsoluteIndex(start, length);
+ var fin = toAbsoluteIndex(end === undefined ? length : end, length);
+ var result = new (speciesConstructor(this, ArrayBuffer))(toLength(fin - first));
+ var viewSource = new DataView(this);
+ var viewTarget = new DataView(result);
+ var index = 0;
+ while (first < fin) {
+ viewTarget.setUint8(index++, viewSource.getUint8(first++));
+ } return result;
+ }
+});