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Document grammar extensions #524

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jorendorff opened this issue May 15, 2020 · 0 comments
Open

Document grammar extensions #524

jorendorff opened this issue May 15, 2020 · 0 comments
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MVP MVP Project Work - In Scope With A Commitment To Complete. P2 Project Work (MVP or Reserve) that is available for selection. parser generator Bug related to the grammar processing, parse tebale generator and the parse table backends.

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@jorendorff
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Grammar extensions seem to do several things:

  • make the grammar itself more modular
  • support adding grammar for proposals we implement, while keeping the main grammar close to the standard
  • get callbacks from grammar productions before we reach the last token
  • separate early error checking from other callbacks
  • something about traits, I think to make the parser/AstBuilder/early error checker more modular too, but I don't understand this part

We never vetted this design as a group, and I think only @nbp fully understands it. We should get it written down—both how it's meant to work, and why.
@jorendorff jorendorff added MVP MVP Project Work - In Scope With A Commitment To Complete. P2 Project Work (MVP or Reserve) that is available for selection. parser generator Bug related to the grammar processing, parse tebale generator and the parse table backends. labels May 15, 2020
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MVP MVP Project Work - In Scope With A Commitment To Complete. P2 Project Work (MVP or Reserve) that is available for selection. parser generator Bug related to the grammar processing, parse tebale generator and the parse table backends.
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