1 files changed, 14 insertions, 0 deletions
diff --git a/src/plugins/cpptools/cppsnapshotupdater.cpp b/src/plugins/cpptools/cppsnapshotupdater.cpp
index 11cd3ff5b3..0a97a98fdf 100644
--- a/src/plugins/cpptools/cppsnapshotupdater.cpp
+++ b/src/plugins/cpptools/cppsnapshotupdater.cpp
@@ -41,6 +41,7 @@ SnapshotUpdater::SnapshotUpdater(const QString &fileInEditor)
     , m_fileInEditor(fileInEditor)
     , m_editorDefinesChangedSinceLastUpdate(false)
     , m_usePrecompiledHeaders(false)
+    , m_forceSnapshotInvalidation(false)
 {
 }
 
@@ -62,6 +63,11 @@ void SnapshotUpdater::update(CppModelManager::WorkingCopy workingCopy)
 
     updateProjectPart();
 
+    if (m_forceSnapshotInvalidation) {
+        invalidateSnapshot = true;
+        m_forceSnapshotInvalidation = false;
+    }
+
     if (m_projectPart) {
         configFile += m_projectPart->defines;
         includePaths = m_projectPart->includePaths;
@@ -186,6 +192,14 @@ void SnapshotUpdater::update(CppModelManager::WorkingCopy workingCopy)
     }
 }
 
+void SnapshotUpdater::releaseSnapshot()
+{
+    QMutexLocker locker(&m_mutex);
+    m_snapshot = Snapshot();
+    m_deps = DependencyTable();
+    m_forceSnapshotInvalidation = true;
+}
+
 Document::Ptr SnapshotUpdater::document() const
 {
     QMutexLocker locker(&m_mutex);