Commit

1 files changed, 31 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2019/GetOwnPropertyKeys.js b/src/node_modules/es-abstract/2019/GetOwnPropertyKeys.js
new file mode 100644
index 0000000..8d7e5ee
--- /dev/null
+++ b/src/node_modules/es-abstract/2019/GetOwnPropertyKeys.js
@@ -0,0 +1,31 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var hasSymbols = require('has-symbols')();
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var $gOPN = GetIntrinsic('%Object.getOwnPropertyNames%');
+var $gOPS = hasSymbols && GetIntrinsic('%Object.getOwnPropertySymbols%');
+var keys = require('object-keys');
+
+var esType = require('./Type');
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-getownpropertykeys
+
+module.exports = function GetOwnPropertyKeys(O, Type) {
+	if (esType(O) !== 'Object') {
+		throw new $TypeError('Assertion failed: Type(O) is not Object');
+	}
+	if (Type === 'Symbol') {
+		return $gOPS ? $gOPS(O) : [];
+	}
+	if (Type === 'String') {
+		if (!$gOPN) {
+			return keys(O);
+		}
+		return $gOPN(O);
+	}
+	throw new $TypeError('Assertion failed: `Type` must be `"String"` or `"Symbol"`');
+};