From ff43b5c553b88d7a788464809b1b791f3dfe7d18 Mon Sep 17 00:00:00 2001
From: Lawrence Niu <lawrence@mbfbioscience.com>
Date: Mon, 24 Jul 2023 15:31:46 -0400
Subject: [PATCH] Add extra generated checks for attributes

If the attribute is dependent on another property, then the dependent
object should be treated as empty if the object is a link.
---
 +file/fillExport.m | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/+file/fillExport.m b/+file/fillExport.m
index 1fb5a1c2..a287e129 100644
--- a/+file/fillExport.m
+++ b/+file/fillExport.m
@@ -231,7 +231,10 @@
             flattened = strrep(elisions(1:flattened(end)), '/', '_');
             depPropname = [flattened prop.dependent];
         end
-        propertyChecks{end+1} = ['~isempty(obj.' depPropname ')'];
+        propertyReference = sprintf('obj.%s', depPropname);
+        propertyChecks{end+1} = sprintf(['~isempty(%1$s) ' ...
+        '&& ~isa(%1$s, ''types.untyped.SoftLink'') ' ...
+        '&& ~isa(%1$s, ''types.untyped.ExternalLink'')'], propertyReference);
     end
 
     if ~prop.required