From 8d3dcc55bcff5c0a5a392336e70457cf39e8aa36 Mon Sep 17 00:00:00 2001
From: Basile Burg <basile.b@gmx.com>
Date: Tue, 27 Nov 2018 14:40:12 +0100
Subject: [PATCH] fix #723 - segfault when running D-Scanner master against
 dparse repo with -S

---
 src/dscanner/analysis/unused.d | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/dscanner/analysis/unused.d b/src/dscanner/analysis/unused.d
index 42ddcb9..141164f 100644
--- a/src/dscanner/analysis/unused.d
+++ b/src/dscanner/analysis/unused.d
@@ -308,9 +308,11 @@ final class UnusedVariableCheck : BaseAnalyzer
 	override void visit(const WithStatement withStatetement)
 	{
 		interestDepth++;
-		withStatetement.expression.accept(this);
+		if (withStatetement.expression)
+			withStatetement.expression.accept(this);
 		interestDepth--;
-		withStatetement.declarationOrStatement.accept(this);
+		if (withStatetement.declarationOrStatement)
+			withStatetement.declarationOrStatement.accept(this);
 	}
 
 	override void visit(const Parameter parameter)