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 |
|---|---|
| Dependencies | base (==4.*), containers (>=0.3 && <0.6), transformers (>=0.2.0 && <0.4) |
| License | BSD3 |
| Copyright | Copyright (C) 2012,2013 Russell O'Connor |
| Author | Russell O'Connor |
| Maintainer | Russell O'Connor <roconnor@theorem.ca> |
| Stability | experimental |
| Category | Data, Lenses |
| Source repository | head: darcs get http://r6.ca/lens-family |
| Upload date | Wed Oct 30 01:25:28 UTC 2013 |
| Uploaded by | RussellOConnor |
| Distributions | NixOS:1.0.0 |
| Downloads | 650 total (62 in last 30 days) |
Modules
Downloads
- lens-family-core-1.0.0.tar.gz [browse] (Cabal source package)
- Package description (included in the package)
Maintainers' corner
For package maintainers and hackage trustees