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CppEditor: Cancel waiting for use selections if revision changed

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Not sure whether this can happen at all, but if it can, we should not
make the UI unusable.

Change-Id: I1a40630d0c1f057e20a33b2c755e1fd5aea0b003
Reviewed-by: David Schulz <david.schulz@qt.io>
This commit is contained in:
Nikolai Kosjar
2017-07-21 13:53:33 +02:00
parent 4335f1184e
commit 6b2d6e7965
1 changed files with 2 additions and 0 deletions
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2
src/plugins/cppeditor/cppuseselectionsupdater.cpp
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@@ -94,6 +94,7 @@ void CppUseSelectionsUpdater::update(CallType callType)
m_runnerWatcher->setFuture(cppEditorDocument->cursorInfo(params));
} else { // synchronous case
const int startRevision = cppEditorDocument->document()->revision();
QFuture<CursorInfo> future = cppEditorDocument->cursorInfo(params);
// QFuture::waitForFinished seems to block completely, not even
@@ -102,6 +103,7 @@ void CppUseSelectionsUpdater::update(CallType callType)
if (future.isCanceled())
return;
QTC_ASSERT(startRevision == cppEditorDocument->document()->revision(), return);
QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
}