From 0c8da1c38a72ffd61664f076531ac4e6ceeb7c6d Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Wed, 31 Oct 2018 11:21:33 +0100
Subject: [PATCH] add an assert to several Command methods to be notified in
 debug mode if no active document exists

---
 src/Gui/Command.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Gui/Command.cpp b/src/Gui/Command.cpp
index d73c28ba9e..50064a91b9 100644
--- a/src/Gui/Command.cpp
+++ b/src/Gui/Command.cpp
@@ -431,16 +431,19 @@ void Command::openCommand(const char* sCmdName)
 
 void Command::commitCommand(void)
 {
+    assert(Gui::Application::Instance->activeDocument());
     Gui::Application::Instance->activeDocument()->commitCommand();
 }
 
 void Command::abortCommand(void)
 {
+    assert(Gui::Application::Instance->activeDocument());
     Gui::Application::Instance->activeDocument()->abortCommand();
 }
 
 bool Command::hasPendingCommand(void)
 {
+    assert(Gui::Application::Instance->activeDocument());
     return Gui::Application::Instance->activeDocument()->hasPendingCommand();
 }