From d3b7251eac214068e9dfa17749e2623fcef9360d Mon Sep 17 00:00:00 2001
From: Jean-Paul Chaput <Jean-Paul.Chaput@lip6.fr>
Date: Thu, 12 May 2022 17:53:21 +0200
Subject: [PATCH] NetRoutingExtension::get() failsafe when net is NULL.

---
 hurricane/src/hurricane/NetRoutingProperty.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hurricane/src/hurricane/NetRoutingProperty.cpp b/hurricane/src/hurricane/NetRoutingProperty.cpp
index 0e6f381c..7547221e 100644
--- a/hurricane/src/hurricane/NetRoutingProperty.cpp
+++ b/hurricane/src/hurricane/NetRoutingProperty.cpp
@@ -227,7 +227,8 @@ namespace Hurricane {
 
   NetRoutingState* NetRoutingExtension::get ( const Net* net )
   {
-    if (net == _owner) return _cache;
+    if (not net) return NULL;
+    if ((net == _owner) and _cache) return _cache;
     _owner = net;
 
     Property* property = _owner->getProperty( NetRoutingProperty::getPropertyName() );