From ea0ac134dbe1af2847201be88f1703ea196b51ea Mon Sep 17 00:00:00 2001
From: Sendil Kumar <sendilkumarn@live.com>
Date: Tue, 14 Aug 2018 19:29:13 +0200
Subject: [PATCH] js-sys: Add extends attributes for js_sys::Uint8Array

---
 crates/js-sys/src/lib.rs               |  1 +
 crates/js-sys/tests/wasm/TypedArray.rs | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/crates/js-sys/src/lib.rs b/crates/js-sys/src/lib.rs
index 852d49f1..7bdcc9d0 100644
--- a/crates/js-sys/src/lib.rs
+++ b/crates/js-sys/src/lib.rs
@@ -2539,6 +2539,7 @@ extern {
 // Uint8Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Uint8Array;
 
diff --git a/crates/js-sys/tests/wasm/TypedArray.rs b/crates/js-sys/tests/wasm/TypedArray.rs
index e3b6292a..ac9dcaba 100644
--- a/crates/js-sys/tests/wasm/TypedArray.rs
+++ b/crates/js-sys/tests/wasm/TypedArray.rs
@@ -1,7 +1,26 @@
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_test::*;
+use wasm_bindgen::JsCast;
 use js_sys::*;
 
+macro_rules! each {
+    ($m:ident) => (
+        $m!(Uint8Array);
+    )
+}
+
+macro_rules! test_inheritence {
+    ($arr:ident) => ({
+        let arr = $arr::new(&JsValue::undefined());
+        assert!(arr.is_instance_of::<Uint8Array>());
+        assert!(arr.is_instance_of::<Object>());        
+    })
+}
+#[wasm_bindgen_test]
+fn inheritence() {
+    each!(test_inheritence);
+}
+
 macro_rules! each {
     ($m:ident) => (
         $m!(Uint8Array);