HazardyKnusperkeks added a comment.

In D132256#3740714 <https://reviews.llvm.org/D132256#3740714>, @alecto wrote:

> If possible I would like to error out if MaxEmptyLinesToKeep < 
> DefinitionBlockSpacing, because that case is probably a mistake on the part 
> of the user, and a failure would be better than clang-format silently doing 
> something unexpected, but I'm not sure where to put the logic for failure.
>
> Where does clang-format handle style/input validation, and what method does 
> it use for handling errors? (Does it rely on exceptions, or returning a 
> "failure" state of some kind?)

Take a look at 
https://github.com/llvm/llvm-project/blob/2b8f722e630d0fdf1ca267361866a27c8d4c9387/clang/lib/Format/Format.cpp#L1696


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132256/new/

https://reviews.llvm.org/D132256

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