Commit

1 files changed, 20 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2018/IsExtensible.js b/src/node_modules/es-abstract/2018/IsExtensible.js
new file mode 100644
index 0000000..0c4c8a6
--- /dev/null
+++ b/src/node_modules/es-abstract/2018/IsExtensible.js
@@ -0,0 +1,20 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $Object = GetIntrinsic('%Object%');
+
+var isPrimitive = require('../helpers/isPrimitive');
+
+var $preventExtensions = $Object.preventExtensions;
+var $isExtensible = $Object.isExtensible;
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-isextensible-o
+
+module.exports = $preventExtensions
+	? function IsExtensible(obj) {
+		return !isPrimitive(obj) && $isExtensible(obj);
+	}
+	: function IsExtensible(obj) {
+		return !isPrimitive(obj);
+	};