Ignore errors on thisValue property accesses

sinonjs · Feb 19, 2020 · a49167c · a49167c
1 parent 8c8336c
commit a49167c
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/lib/sinon/util/core/function-to-string.js b/lib/sinon/util/core/function-to-string.js
@@ -8,9 +8,14 @@ module.exports = function toString() {
         while (i--) {
             thisValue = this.getCall(i).thisValue;
 
+            // eslint-disable-next-line guard-for-in
             for (prop in thisValue) {
-                if (thisValue[prop] === this) {
-                    return prop;
+                try {
+                    if (thisValue[prop] === this) {
+                        return prop;
+                    }
+                } catch (e) {
+                    // no-op - accessing props can throw an error, nothing to do here
                 }
             }
         }