From 54502c906f77ddc387b883ff4151917de086c58a Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Tue, 5 May 2020 23:19:02 +0200
Subject: [PATCH] make disposeTracked suitable to reassign member

---
 src/utils/Disposables.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/utils/Disposables.js b/src/utils/Disposables.js
index 8d90b8c6..e1d6b0a5 100644
--- a/src/utils/Disposables.js
+++ b/src/utils/Disposables.js
@@ -25,12 +25,16 @@ export class Disposables {
     }
 
     disposeTracked(value) {
+        if (value === undefined || value === null) {
+            return null;
+        }
         const idx = this._disposables.indexOf(value);
         if (idx !== -1) {
             const [foundValue] = this._disposables.splice(idx, 1);
             disposeValue(foundValue);
-            return true;
+        } else {
+            console.warn("disposable not found, did it leak?", value);
         }
-        return false;
+        return null;
     }
 }