From 5e2ad9457f8681aa14b8a2f4029a88c89bbcdbbd Mon Sep 17 00:00:00 2001
From: David Schulz <david.schulz@qt.io>
Date: Thu, 1 Mar 2018 12:33:48 +0100
Subject: [PATCH] ClangCodeModel: Fix crash on git diff/show

currentEditorChanged is emitted also for none TextEditors, so
check the qobject casted TextDocument before accessing it.

Change-Id: I57080221bec34b879f21e022029524818ea92569
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
---
 .../clangcodemodel/clangcurrentdocumentfilter.cpp        | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/plugins/clangcodemodel/clangcurrentdocumentfilter.cpp b/src/plugins/clangcodemodel/clangcurrentdocumentfilter.cpp
index d5a84b611d4..adc4507b88b 100644
--- a/src/plugins/clangcodemodel/clangcurrentdocumentfilter.cpp
+++ b/src/plugins/clangcodemodel/clangcurrentdocumentfilter.cpp
@@ -176,11 +176,12 @@ void ClangCurrentDocumentFilter::onCurrentEditorChanged(Core::IEditor *newCurren
         m_currentEditor = newCurrent;
         Core::IDocument *document = m_currentEditor->document();
         QTC_ASSERT(document, return;);
-        auto *textDocument = qobject_cast<TextEditor::TextDocument *>(document);
-        m_currentPath = textDocument->filePath().toString();
-    } else {
-        reset();
+        if (auto *textDocument = qobject_cast<TextEditor::TextDocument *>(document)) {
+            m_currentPath = textDocument->filePath().toString();
+            return;
+        }
     }
+    reset();
 }
 
 } // namespace ClangCodeModel