Implement FromJSValConvertible for *mut JSObject

Author: Xanewok

src/conversions.rs

@@ -654,3 +654,22 @@ impl ToJSValConvertible for Heap<*mut JSObject> {
         maybe_wrap_object_or_null_value(cx, rval);
     }
 }
+
+// https://heycam.github.io/webidl/#es-object
+impl FromJSValConvertible for *mut JSObject {
+    type Config = ();
+    #[inline]
+    unsafe fn from_jsval(cx: *mut JSContext,
+                         value: HandleValue,
+                         _option: ())
+                         -> Result<ConversionResult<*mut JSObject>, ()> {
+        if !value.is_object() {
+            throw_type_error(cx, "value is not an object");
+            return Err(());
+        }
+
+        AssertSameCompartment(cx, value.to_object());
+
+        Ok(ConversionResult::Success(value.to_object()))
+    }
+}

src/rust.rs

@@ -593,7 +593,7 @@ impl<T: CustomTrace> CustomAutoRooter<T> {
 /// The underlying data can be accessed through this guard via its Deref and
 /// DerefMut implementations.
 /// This structure is created by `root` method on `CustomAutoRooter` or
-/// by an appropriate macro (e.g. `rooted_vec!` for `SequenceRooter` alias).
+/// by the `auto_root!` macro.
 pub struct CustomAutoRooterGuard<'a, T: 'a + CustomTrace> {
     rooter: &'a mut CustomAutoRooter<T>
 }