CppTools: Cancel parsing if editor is closed

The m_parserFuture.cancel() in ~BuiltinEditorDocumentProcessor() did not
cancel anything. Thus, closing a document while the parser was running
led to a blocking UI thread.

Now it cancels at the next include directive it encounters.

Change-Id: I092fddbbd747e0bc95265b6e9b4fcc26b3f76cb3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/plugins/cpptools/cppsourceprocessor.cpp b/src/plugins/cpptools/cppsourceprocessor.cpp
index f238a841f7..e04d977ebf 100644
--- a/src/plugins/cpptools/cppsourceprocessor.cpp
+++ b/src/plugins/cpptools/cppsourceprocessor.cpp
@@ -121,6 +121,11 @@ CppSourceProcessor::CppSourceProcessor(const Snapshot &snapshot, DocumentCallbac
 CppSourceProcessor::~CppSourceProcessor()
 { }
 
+void CppSourceProcessor::setCancelChecker(const CppSourceProcessor::CancelChecker &cancelChecker)
+{
+    m_preprocess.setCancelChecker(cancelChecker);
+}
+
 void CppSourceProcessor::setWorkingCopy(const WorkingCopy &workingCopy)
 { m_workingCopy = workingCopy; }