Add `enummaps` module to attach metadata to enums; as a special case, it replaces enum with holes

timotheecour commented 4 years ago

Add enummaps module which enables a DRY and flexible syntax to attach metadata to enums; it also avoids need for enum with holes

migrated from https://github.com/nim-lang/Nim/pull/14008, minus the compiler changes which were showcasing how compiler could take advantage of enummaps
pending https://github.com/nim-lang/fusion/issues/22, compiler could use fusion/enummaps and the compiler changes from https://github.com/nim-lang/Nim/pull/14008 could be done too
see https://github.com/nim-lang/Nim/pull/14008 for examples and discussion /cc @araq please squash and rebase instead of merge to avoid merge commits for consistency with nim repo, the past few PR's have merge commits :-)

Araq commented 3 years ago

Rejected and no, I don't want to discuss it further, my time is better spent elsewhere and so is yours. Make it a Nimble package and see how many people end up using it.

timotheecour commented 3 years ago

for others: continuing in my private fork for now: https://github.com/timotheecour/fusion/pull/1

nim-lang / fusion

Add `enummaps` module to attach metadata to enums; as a special case, it replaces enum with holes #23