1 files changed, 16 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/es.object.prevent-extensions.js b/node_modules/core-js/modules/es.object.prevent-extensions.js
new file mode 100644
index 0000000..bb7b268
--- /dev/null
+++ b/node_modules/core-js/modules/es.object.prevent-extensions.js
@@ -0,0 +1,16 @@
+var $ = require('../internals/export');
+var isObject = require('../internals/is-object');
+var onFreeze = require('../internals/internal-metadata').onFreeze;
+var FREEZING = require('../internals/freezing');
+var fails = require('../internals/fails');
+
+var nativePreventExtensions = Object.preventExtensions;
+var FAILS_ON_PRIMITIVES = fails(function () { nativePreventExtensions(1); });
+
+// `Object.preventExtensions` method
+// https://tc39.github.io/ecma262/#sec-object.preventextensions
+$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
+  preventExtensions: function preventExtensions(it) {
+    return nativePreventExtensions && isObject(it) ? nativePreventExtensions(onFreeze(it)) : it;
+  }
+});