Introduce Options and OptionsMonad #427
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This was referenced Dec 21, 2019
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This patch introduces an `Options` data type and an `mtl`-like `OptionsMonad` class for monads that carry `Options`. At present, the only things one can do with `Options` are: * Toggle the generation of `SingKind` instances. Suppressing `SingKind` instances provides an effective workaround for #150. * Hook into the TH machinery's naming conventions for promoted and singled names. This fixes #204. The vast majority of this patch simply adds plumbing by using `OptionsMonad` in places that need it. See the `D.S.TH.Options` module for where most of the new code is housed, as well as the `T150` and `T204` test cases for examples of how to use it.
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This patch introduces an
Optionsdata type and anmtl-likeOptionsMonadclass for monads that carryOptions. At present, the only things one can do withOptionsare:SingKindinstances. SuppressingSingKindinstances provides an effective workaround for Promote GADTs #150.The vast majority of this patch simply adds plumbing by using
OptionsMonadin places that need it. See theD.S.TH.Optionsmodule for where most of the new code is housed, as well as theT150andT204test cases for examples of how to use it.