Name: fclabels Version: 1.1.4.2 Author: Sebastiaan Visser, Erik Hesselink, Chris Eidhof, Sjoerd Visscher with lots of help and feedback from others. Synopsis: First class accessor labels. Description: This package provides first class labels that can act as bidirectional record fields. The labels can be derived automatically using Template Haskell which means you don't have to write any boilerplate yourself. The labels are implemented as lenses and are fully composable. Labels can be used to /get/, /set/ and /modify/ parts of a datatype in a consistent way. . See "Data.Label" for an introductory explanation. . Internally lenses are not tied to Haskell functions directly, but are implemented as arrows. Arrows allow the lenses to be run in custom computational contexts. This approach allows us to make partial lenses that point to fields of multi-constructor datatypes in an elegant way. . See the "Data.Label.Maybe" module for the use of partial labels. . > 1.1.4 -> 1.1.4.2 > - Make compilable against template haskell 2.8. > Thanks to Shimuuar for the pull request. Maintainer: Sebastiaan Visser License: BSD3 License-File: LICENSE Category: Data Cabal-Version: >= 1.6 Build-Type: Simple Library HS-Source-Dirs: src Other-Modules: Data.Label.Derive Exposed-Modules: Data.Label Data.Label.Abstract Data.Label.Maybe Data.Label.MaybeM Data.Label.Pure Data.Label.PureM GHC-Options: -Wall Build-Depends: base < 5 , template-haskell >= 2.2 && < 2.9 , mtl >= 1.0 && < 2.2 , transformers >= 0.2 && < 0.4 Source-Repository head Type: git Location: git://github.com/sebastiaanvisser/fclabels.git