deep-map: Deeply-nested, multiple key type maps.
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- deep-map-0.3.2.tar.gz [browse] (Cabal source package)
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| Versions [RSS] | 0.1.0.0, 0.1.1.0, 0.2.0, 0.2.0.1, 0.3.0, 0.3.1, 0.3.2 (info) |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | base (>=4.11 && <5), containers (>=0.5.11 && <0.8), indexed-traversable (>=0.1.2 && <0.2), witherable (>=0.5) [details] |
| License | BSD-3-Clause |
| Copyright | 2021-2024 Melanie Brown |
| Author | Melanie Brown |
| Maintainer | brown.m@pm.me |
| Category | Data, Statistics |
| Home page | https://github.com/mixphix/deep-map |
| Bug tracker | https://github.com/mixphix/deep-map/issues |
| Uploaded | by melaniebrown at 2024-11-20T17:05:37Z |
| Distributions | NixOS:0.3.2 |
| Downloads | 473 total (15 in the last 30 days) |
| Rating | 2.0 (votes: 1) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2024-11-20 [all 1 reports] |
Readme for deep-map-0.3.2
[back to package description]deep-map
A DeepMap is a map that has several layers of keys.
type DeepMap :: [Type] -> Type -> Type
data DeepMap ks v where
Core :: v -> DeepMap '[] v
Wrap :: Map k (DeepMap ks v) -> DeepMap (k ': ks) v
For a given (k ': ks) :: [Type], the type DeepMap (k ': ks) v is isomorphic to lists of the form [(k, k0, .., kn, v)] where ks = '[k0, ..., kn], but with better performance.