[clang][ExtractAPI] Add support for namespaces

Serialize namespaces, nested namespaces, and class relationships inside them.

Depends on D157076

Reviewed By: dang

Differential Revision: https://reviews.llvm.org/D158239

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/ExtractAPI/DeclarationFragments.cpp b/clang/lib/ExtractAPI/DeclarationFragments.cpp
index 36b0d1f..f1fff6b 100644
--- a/clang/lib/ExtractAPI/DeclarationFragments.cpp
+++ b/clang/lib/ExtractAPI/DeclarationFragments.cpp
@@ -423,6 +423,16 @@ DeclarationFragments DeclarationFragmentsBuilder::getFragmentsForType(
   return QualsFragments.appendSpace().append(std::move(TypeFragments));
 }
 
+DeclarationFragments DeclarationFragmentsBuilder::getFragmentsForNamespace(
+    const NamespaceDecl *Decl) {
+  DeclarationFragments Fragments;
+  Fragments.append("namespace", DeclarationFragments::FragmentKind::Keyword);
+  if (!Decl->isAnonymousNamespace())
+    Fragments.appendSpace().append(
+        Decl->getName(), DeclarationFragments::FragmentKind::Identifier);
+  return Fragments.append(";", DeclarationFragments::FragmentKind::Text);
+}
+
 DeclarationFragments
 DeclarationFragmentsBuilder::getFragmentsForVar(const VarDecl *Var) {
   DeclarationFragments Fragments;