[PATCH] D141280: [clang][wip] Build UsingType for elaborated type specifiers.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
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This is a hacky prototype to support building UsingType for elaborated
type specifiers:

  namespace ns { class Foo {}; }
  
  using ns::Foo;
  
  // The TypeLoc of `Foo` below should be a ElaboratedTypeLoc with an
  inner UsingTypeLoc rather than the underlying `CXXRecordTypeLoc`
  class Foo foo;

It seems to work, and improves some diagnostics.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D141280

Files:
  clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
  clang/include/clang/Sema/DeclSpec.h
  clang/include/clang/Sema/Sema.h
  clang/lib/Parse/ParseDecl.cpp
  clang/lib/Parse/ParseDeclCXX.cpp
  clang/lib/Sema/SemaDecl.cpp
  clang/lib/Sema/SemaType.cpp
  clang/test/CXX/drs/dr2xx.cpp
  clang/test/CXX/drs/dr4xx.cpp
  clang/test/SemaCXX/using-decl-1.cpp

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