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/externandnotdefined.cxx b/compilerplugins/clang/externandnotdefined.cxx
index 97dff5a8dfa3..faf6bffb136c 100644
--- a/compilerplugins/clang/externandnotdefined.cxx
+++ b/compilerplugins/clang/externandnotdefined.cxx
@@ -17,10 +17,10 @@
 namespace {
 
 class ExternAndNotDefined:
-    public RecursiveASTVisitor<ExternAndNotDefined>, public loplugin::Plugin
+    public loplugin::FilteringPlugin<ExternAndNotDefined>
 {
 public:
-    explicit ExternAndNotDefined(loplugin::InstantiationData const & data): Plugin(data) {}
+    explicit ExternAndNotDefined(loplugin::InstantiationData const & data): FilteringPlugin(data) {}
 
     virtual void run() override { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }