deep-map: Deeply-nested, multiple key type maps.
Downloads
- deep-map-0.2.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
- No Candidates
| 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 && <0.7), indexed-traversable (>=0.1.2 && <0.2) [details] |
| License | BSD-3-Clause |
| Copyright | 2021 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 2023-10-28T15:00:46Z |
| Distributions | NixOS:0.2.0.1 |
| Downloads | 385 total (13 in the last 30 days) |
| Rating | 2.0 (votes: 1) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs not available [build log] All reported builds failed as of 2023-10-28 [all 2 reports] |
Readme for deep-map-0.2.0
[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
Bare :: v -> DeepMap '[] v
Nest :: 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.