filter out some of the AST in the plugins

by checking if the current namespace decl is in our code, so we have to
scan less stuff, which results in a 10% perf improvement for me

Change-Id: Idf0e30d57b6d0dcd13daa9ed679c28b9d233d387
Reviewed-on: https://gerrit.libreoffice.org/58942
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/compilerplugins/clang/memoryvar.cxx b/compilerplugins/clang/memoryvar.cxx
index 590af94b7c7a..d3842f4f3eb5 100644
--- a/compilerplugins/clang/memoryvar.cxx
+++ b/compilerplugins/clang/memoryvar.cxx
@@ -22,10 +22,10 @@ namespace
 {
 
 class MemoryVar:
-    public RecursiveASTVisitor<MemoryVar>, public loplugin::Plugin
+    public loplugin::FilteringPlugin<MemoryVar>
 {
 public:
-    explicit MemoryVar(loplugin::InstantiationData const & data): Plugin(data), mbChecking(false) {}
+    explicit MemoryVar(loplugin::InstantiationData const & data): FilteringPlugin(data), mbChecking(false) {}
 
     virtual void run() override {
         TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());