some: Existential type: Some

[ bsd3, data, dependent-types, library ] [ Propose Tags ]

This library defines an existential type Some.

data Some f where
    Some :: f a -> Some f

in few variants, and utilities to work with it.

If you are unsure which variant to use, use the one in Data.Some module.

Versions [faq] 1, 1.0.0.1, 1.0.0.2, 1.0.0.3 (info)
Change log ChangeLog.md
Dependencies base (>=4.3 && <4.14), deepseq (>=1.3.0.0 && <1.5), semigroups (>=0.18.5 && <0.20), transformers (>=0.3 && <0.6), transformers-compat (==0.6.*), type-equality (>=1 && <1.1) [details]
License BSD-3-Clause
Author James Cook <mokus@deepbondi.net>, Oleg Grenrus <oleg.grenrus@iki.fi>
Maintainer Oleg Grenrus <oleg.grenrus@iki.fi>
Category Data, Dependent Types
Home page https://github.com/phadej/some
Source repo head: git clone git://github.com/phadej/some.git(some)
Uploaded by phadej at Fri Sep 13 07:19:57 UTC 2019
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Downloads 100 total (100 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2019-09-13 [all 1 reports]

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Flags

NameDescriptionDefaultType
newtype-unsafe

Use implementation using newtype and unsafe Any, instead of GADT

EnabledManual

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

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