[PATCH] D130414: [pseudo] Reorganize CXX.h enums

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added reviewers: hokein, usaxena95.
Herald added a project: All.
sammccall requested review of this revision.
Herald added subscribers: cfe-commits, alextsao1999.
Herald added a project: clang-tools-extra.

- Place rules under rule::lhs::rhs__rhs__rhs
- Change mangling of keywords to ALL_CAPS (needed to turn keywords that appear alone on RHS into valid identifiers)
- Make enums implicitly convertible to underlying type (though still scoped, using alias tricks)

In principle this lets us exhaustively write a switch over all rules of a NT:

  switch ((rule::declarator)N->rule()) {
    case rule::declarator::noptr_declarator:
      ...
  }

In practice we don't do this anywhere yet as we're often switching over multiple
nonterminal kinds at once.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130414

Files:
  clang-tools-extra/pseudo/gen/Main.cpp
  clang-tools-extra/pseudo/include/clang-pseudo/cxx/CXX.h
  clang-tools-extra/pseudo/lib/cxx/CXX.cpp
  clang-tools-extra/pseudo/lib/grammar/Grammar.cpp
  clang-tools-extra/pseudo/unittests/GrammarTest.cpp

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