[PATCH] D110278: Adding doWithCleanup abstraction

[Chris Bieneman via Phabricator via cfe-commits]

beanz created this revision.
beanz added reviewers: lhames, dblaikie.
Herald added subscribers: dexonsmith, mgorny.
beanz requested review of this revision.
Herald added projects: clang, LLVM.

This patch adds a new `doWithCleanup` abstraction to LLVM that works
with `llvm::Error`, `int`, `bool`, and <insert your own type here>
return types that propagate status.

This abstraction is a more general way of having a conditional cleanup
that can be used with multiple return paths out of a function.

Test cases and a first use case in clang are part of the patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D110278

Files:
  clang/include/clang/Frontend/FrontendAction.h
  clang/lib/Frontend/FrontendAction.cpp
  llvm/include/llvm/Support/Cleanup.h
  llvm/unittests/Support/CMakeLists.txt
  llvm/unittests/Support/CleanupTests.cpp

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