[PATCH] D95344: [clang][cli] Accept strings instead of options in ImpliedByAnyOf

[Jan Svoboda via Phabricator via cfe-commits]

jansvoboda11 created this revision.
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To be able to use a constant keypaths (e.g. `defvar cplusplus = LangOpts<"CPlusPlus">`) inside `ImpliedByAnyOf`, let's accept strings instead of `Option` instances.

This somewhat weakens the guarantees that we're referring to an existing entity, but we can still use the option.KeyPath syntax to simulate this.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95344

Files:
  clang/include/clang/Driver/Options.td
  llvm/include/llvm/Option/OptParser.td
  llvm/unittests/Option/Opts.td

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