From 8a2a2d8af60e50c7428ef7e0f389334ca13c0c9b Mon Sep 17 00:00:00 2001
From: Forrest Li <forrest.li@kitware.com>
Date: Mon, 12 Jul 2021 10:53:52 -0400
Subject: [PATCH] fix(macro): add shouldUpdate guards

shouldUpdate should check for a deleted output, since that would
invalidate a getMTime() call.
---
 Sources/macro.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sources/macro.js b/Sources/macro.js
index 655d12e4c76..17206ac5387 100644
--- a/Sources/macro.js
+++ b/Sources/macro.js
@@ -705,6 +705,11 @@ export function algo(publicAPI, model, numberOfInputs, numberOfOutputs) {
       if (!model.output[count]) {
         return true;
       }
+
+      if (model.output[count].isDeleted()) {
+        return true;
+      }
+
       const mt = model.output[count].getMTime();
       if (mt < localMTime) {
         return true;