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Nontermination in presence of empty continuations #9

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noughtmare opened this issue Jun 16, 2023 · 0 comments

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noughtmare commented Jun 16, 2023

If we ever push an empty continuation to the stack then we will get into an infinite loop.

That can happen in cases like this:

emptyk :: Parser ()
emptyk = 'emptyk
  ::= emptyk <|> pure ()

It is easy to check whether a parser parses the empty string, but it is a bit of an open question how we can use that information to fix this bug.

noughtmare added the bug label

noughtmare added this to the 0.2 milestone

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