blob: c7119a817aaea57bd6d72d1934530c18adea8896 [file] [log] [blame]
'use strict';
var $export = require('./_export')
, $typed = require('./_typed')
, buffer = require('./_typed-buffer')
, anObject = require('./_an-object')
, toIndex = require('./_to-index')
, toLength = require('./_to-length')
, isObject = require('./_is-object')
, TYPED_ARRAY = require('./_wks')('typed_array')
, ArrayBuffer = require('./_global').ArrayBuffer
, speciesConstructor = require('./_species-constructor')
, $ArrayBuffer = buffer.ArrayBuffer
, $DataView = buffer.DataView
, $isView = $typed.ABV && ArrayBuffer.isView
, $slice = $ArrayBuffer.prototype.slice
, VIEW = $typed.VIEW
, ARRAY_BUFFER = 'ArrayBuffer';
$export($export.G + $export.W + $export.F * (ArrayBuffer !== $ArrayBuffer), {ArrayBuffer: $ArrayBuffer});
$export($export.S + $export.F * !$typed.CONSTR, ARRAY_BUFFER, {
// 24.1.3.1 ArrayBuffer.isView(arg)
isView: function isView(it){
return $isView && $isView(it) || isObject(it) && VIEW in it;
}
});
$export($export.P + $export.U + $export.F * require('./_fails')(function(){
return !new $ArrayBuffer(2).slice(1, undefined).byteLength;
}), ARRAY_BUFFER, {
// 24.1.4.3 ArrayBuffer.prototype.slice(start, end)
slice: function slice(start, end){
if($slice !== undefined && end === undefined)return $slice.call(anObject(this), start); // FF fix
var len = anObject(this).byteLength
, first = toIndex(start, len)
, final = toIndex(end === undefined ? len : end, len)
, result = new (speciesConstructor(this, $ArrayBuffer))(toLength(final - first))
, viewS = new $DataView(this)
, viewT = new $DataView(result)
, index = 0;
while(first < final){
viewT.setUint8(index++, viewS.getUint8(first++));
} return result;
}
});
require('./_set-species')(ARRAY_BUFFER);