[PATCH] D47272: [clangd] Build index on preamble changes instead of the AST changes

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov added a comment.

In https://reviews.llvm.org/D47272#1110958, @ioeric wrote:

> Would it be possible to add some integration tests for file index plus preamble?


Sure, will do



================
Comment at: clangd/index/FileIndex.cpp:37
+  std::vector<Decl *> TopLevelDecls(
+      AST.getTranslationUnitDecl()->decls().begin(),
+      AST.getTranslationUnitDecl()->decls().end());
----------------
ioeric wrote:
> Would this give us decls in namespaces? It seems that `AST.getTranslationUnitDecl()->decls()` are only decls that are immediately inside the TU context. 
I'll double check and add a test for that, but I think the indexer visits the namespaces that we provide, I'm not sure if we have tests though.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D47272