From ba2d0cdd62026d04c601345e6bd738c7a08d877a Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Mon, 22 Feb 2021 01:13:38 +0000
Subject: [PATCH] Nullptr safety.

---
 pcbnew/pcb_expr_evaluator.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pcbnew/pcb_expr_evaluator.cpp b/pcbnew/pcb_expr_evaluator.cpp
index da288b2239..f442210541 100644
--- a/pcbnew/pcb_expr_evaluator.cpp
+++ b/pcbnew/pcb_expr_evaluator.cpp
@@ -125,7 +125,10 @@ static void isPlated( LIBEVAL::CONTEXT* aCtx, void* self )
     PCB_EXPR_VAR_REF* vref = static_cast<PCB_EXPR_VAR_REF*>( self );
     BOARD_ITEM*       item = vref ? vref->GetObject( aCtx ) : nullptr;
 
-    if( item->Type() == PCB_PAD_T && dynamic_cast<PAD*>( item )->GetAttribute() == PAD_ATTRIB_PTH )
+    if( !item )
+        return;
+
+    if( item->Type() == PCB_PAD_T && static_cast<PAD*>( item )->GetAttribute() == PAD_ATTRIB_PTH )
         result->Set( 1.0 );
     else if( item->Type() == PCB_VIA_T )
         result->Set( 1.0 );