[PATCH] D65044: [Format] Add option to enable coroutines keywords

[Brian Gesiak via Phabricator via cfe-commits]

modocache created this revision.
modocache added reviewers: rsmith, sammccall, Typz, klimek.
Herald added a subscriber: EricWF.
Herald added a project: clang.

In a previous change, https://reviews.llvm.org/D65043, I allowed users to
explicitly opt-in to formatting according to the C++20 standard. Should
a user choose to do so, the formatter would treat coroutine keywords
such as `co_yield` as keywords, whereas under the C++11 standard they
would be treated as identifiers.

However, this excludes a use case in which, for example, a user's codebase
is written using the C++17 standard, but with an explicit opt-in to
`-fcoroutines-ts`. This commit adds an option to clang-format to allow
formatting under an arbitrary standard, but with `co_yield` and friends
treated as keywords.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D65044

Files:
  clang/docs/ClangFormatStyleOptions.rst
  clang/include/clang/Format/Format.h
  clang/lib/Format/Format.cpp
  clang/unittests/Format/FormatTest.cpp

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