[PATCH] D51525: [ADT] Add a new class OwnedOrBorrowed<T>

[Zachary Turner via Phabricator via llvm-commits]

zturner created this revision.
zturner added reviewers: rnk, chandlerc, timshen, dblaikie.
Herald added subscribers: dexonsmith, mgorny.

This might be controversial, but this class is essentially a `variant<unique_ptr<T>, T&>`.  I can go into great detail about why I need this, but it's a huge wall of text, so unless anyone asks, I'll spare you the details.  The idea, however, is simple.  You can construct this class with a `unique_ptr<T>` or with a `T&`.  In the former case, the class owns the object, in the latter it doesn't.  Aside from that, it's a simple smart pointer with all the overloaded operators, structors, and other functionality you'd expect.


https://reviews.llvm.org/D51525

Files:
  llvm/include/llvm/ADT/OwnedOrBorrowed.h
  llvm/unittests/ADT/CMakeLists.txt
  llvm/unittests/ADT/OwnedOrBorrowedTest.cpp

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