ClassView: don't clear project's file list cache when files removed

Instead of clearing the project's file list completely,
remove just a project (in case a removed file was a project)
and remove from all project's lists the removed file (in case
a removed file was contained in any project).

Task-number: QTCREATORBUG-25317
Change-Id: I63a5f9eb1043bd0d9b835d55f4a16f7f6af7bc6e
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/plugins/classview/classviewparser.cpp b/src/plugins/classview/classviewparser.cpp
index 99ab7adcc9..c2abae643f 100644
--- a/src/plugins/classview/classviewparser.cpp
+++ b/src/plugins/classview/classviewparser.cpp
@@ -572,13 +572,15 @@ void Parser::removeFiles(const QStringList &fileList)
 
     QWriteLocker lockerPrj(&d->prjLocker);
     QWriteLocker lockerDoc(&d->docLocker);
-    foreach (const QString &name, fileList) {
+    for (const QString &name : fileList) {
         d->fileList.remove(name);
         d->cachedDocTrees.remove(name);
         d->cachedDocTreesRevision.remove(name);
         d->documentList.remove(name);
         d->cachedPrjTrees.remove(name);
-        d->cachedPrjFileLists.clear();
+        d->cachedPrjFileLists.remove(name);
+        for (auto it = d->cachedPrjFileLists.begin(); it != d->cachedPrjFileLists.end(); ++it)
+            it.value().removeOne(name);
     }
 }