The lens-family-core package
This package provides first class(†) functional references. In addition to the usual operations of getting, setting and composition, plus integration with the state monad, lens families provide some unique features:
Polymorphic updating
Traversals
Cast projection functions to read-only lenses
Cast "toList" functions to read-only traversals
Cast semantic editor combinators to modify-only traversals.
(†) For optimal first-class support use the lens-family package with rank 2 / rank N polymorphism. Lens.Family.Clone allows for first-class support of lenses and traversals for those who require Haskell 98.
Properties
| Versions | 0.0.0, 0.0.1, 0.1.0, 1.0.0, 1.0.1, 1.1.0, 1.2.0, 1.2.1 |
|---|---|
| Change log | CHANGELOG |
| Dependencies | base (==4.*), containers (>=0.3 && <0.6), transformers (>=0.2.0 && <0.6) [details] |
| License | BSD3 |
| Copyright | Copyright (C) 2012,2013,2014 Russell O'Connor |
| Author | Russell O'Connor |
| Maintainer | Russell O'Connor <roconnor@theorem.ca> |
| Category | Data, Lenses |
| Source repository | head: darcs get http://r6.ca/lens-family |
| Uploaded | Tue Jun 21 03:39:16 UTC 2016 by RussellOConnor |
| Distributions | LTSHaskell:1.2.1, NixOS:1.2.1, Stackage:1.2.1, Tumbleweed:1.2.1 |
| Downloads | 4401 total (343 in the last 30 days) |
| Votes | |
| Status | Docs available [build log] Last success reported on 2016-06-21 [all 1 reports] Hackage Matrix CI |
Downloads
- lens-family-core-1.2.1.tar.gz [browse] (Cabal source package)
- Package description (included in the package)