From 4e18493fd7207996d65480b21f4d2ce2e33ace1c Mon Sep 17 00:00:00 2001
From: Michael Hoffmann <brennan.brisad@gmail.com>
Date: Wed, 19 Sep 2018 20:43:50 +0200
Subject: [PATCH] Add binding for Object.getOwnPropertyNames()

---
 crates/js-sys/src/lib.rs           | 8 ++++++++
 crates/js-sys/tests/wasm/Object.rs | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/crates/js-sys/src/lib.rs b/crates/js-sys/src/lib.rs
index d72bbcac..86b9d05b 100644
--- a/crates/js-sys/src/lib.rs
+++ b/crates/js-sys/src/lib.rs
@@ -2040,6 +2040,14 @@ extern "C" {
     #[wasm_bindgen(static_method_of = Object, js_name = getOwnPropertyDescriptors)]
     pub fn get_own_property_descriptors(obj: &Object) -> JsValue;
 
+    /// The Object.getOwnPropertyNames() method returns an array of
+    /// all properties (including non-enumerable properties except for
+    /// those which use Symbol) found directly upon a given object.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames)
+    #[wasm_bindgen(static_method_of = Object, js_name = getOwnPropertyNames)]
+    pub fn get_own_property_names(obj: &Object) -> Array;
+
     /// The `hasOwnProperty()` method returns a boolean indicating whether the
     /// object has the specified property as its own property (as opposed to
     /// inheriting it).
diff --git a/crates/js-sys/tests/wasm/Object.rs b/crates/js-sys/tests/wasm/Object.rs
index 525bfab3..ccd555cb 100644
--- a/crates/js-sys/tests/wasm/Object.rs
+++ b/crates/js-sys/tests/wasm/Object.rs
@@ -122,6 +122,15 @@ fn get_own_property_descriptors() {
     assert_eq!(PropertyDescriptor::from(foo_desc).value(), 42);
 }
 
+#[wasm_bindgen_test]
+fn get_own_property_names() {
+    let names = Object::get_own_property_names(&foo_42());
+    assert_eq!(names.length(), 1);
+    names.for_each(&mut |x, _, _| {
+        assert_eq!(x, "foo");
+    });
+}
+
 #[wasm_bindgen_test]
 fn has_own_property() {
     assert!(foo_42().has_own_property(&"foo".into()));