[PATCH] D120131: [clangd] prototype: for singly-instantiated templates, examine the instantiation

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
Herald added subscribers: usaxena95, kadircet, arphaman.
sammccall requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
Herald added projects: clang, clang-tools-extra.

This prototype is crude and breaks things (e.g. including rename).
It has this behavior for all selections and nothing else.
A real version would use it for *some* selections (not rename!) and some other
traversals too (syntax highlighting).

It does allow hover/go-to-definition to work in cases like:

  void callMeWithFoos(std::function<void(Foo)>);
  ...
  callMeWithFoos([](auto &&x) {
    x.^bar(); // will jump to Foo::bar
  });

as well as other cases handled in D119537 <https://reviews.llvm.org/D119537>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120131

Files:
  clang-tools-extra/clangd/FindTarget.cpp
  clang-tools-extra/clangd/Selection.cpp
  clang/include/clang/AST/RecursiveASTVisitor.h

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