SB-6.1-PRE

node_modules/es-abstract/2016/IsDataDescriptor.js

@@ -0,0 +1,23 @@
+'use strict';
+
+var has = require('has');
+
+var assertRecord = require('../helpers/assertRecord');
+
+var Type = require('./Type');
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-isdatadescriptor
+
+module.exports = function IsDataDescriptor(Desc) {
+	if (typeof Desc === 'undefined') {
+		return false;
+	}
+
+	assertRecord(Type, 'Property Descriptor', 'Desc', Desc);
+
+	if (!has(Desc, '[[Value]]') && !has(Desc, '[[Writable]]')) {
+		return false;
+	}
+
+	return true;
+};