Name : ghc-microlens
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Version : 0.4.9.1
| Vendor : obs://build_opensuse_org/home:ShikharJ
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Release : 1.1
| Date : 2018-07-26 13:45:25
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Group : Development/Libraries/Haskell
| Source RPM : ghc-microlens-0.4.9.1-1.1.src.rpm
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Size : 0.13 MB
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Packager : (none)
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Summary : A tiny lens library with no dependencies. If you\'re writing an app, you probably want microlens-platform, not this
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Description :
NOTE: If you\'re writing an app, you probably want < http://hackage.haskell.org/package/microlens-platform microlens-platform> – it has the most features. < http://hackage.haskell.org/package/microlens microlens> is intended more for library writers who want a tiny lens library (after all, lenses are pretty useful for everything, not just for updating records!).
This library is an extract from < http://hackage.haskell.org/package/lens lens> (with no dependencies). It\'s not a toy lenses library, unsuitable for “real world”, but merely a small one. It is compatible with lens, and should have same performance. It also has better documentation.
There\'s a longer readme < https://github.com/aelve/microlens#readme on Github>. It has a migration guide for lens users, a description of other packages in the family, a discussion of other lens libraries you could use instead, and so on.
Here are some usecases for this library:
* You want to define lenses or traversals in your own library, but don\'t want to depend on lens. Having lenses available often make working with a library more pleasant.
* You just want to be able to use lenses to transform data (or even just use \'over _1\' to change the first element of a tuple).
* You are new to lenses and want a small library to play with.
However, don\'t use this library if:
* You need \'Iso\'s, \'Prism\'s, indexed traversals, or actually anything else which isn\'t defined here (tho some indexed functions are available elsewhere – containers and vector provide them for their types, and < http://hackage.haskell.org/package/ilist ilist> provides indexed functions for lists).
* You want a library with a clean, understandable implementation (in which case you\'re looking for < http://hackage.haskell.org/package/lens-simple lens-simple>).
As already mentioned, if you\'re writing an application which uses lenses more extensively, look at < http://hackage.haskell.org/package/microlens-platform microlens-platform> – it combines features of most other microlens packages (< http://hackage.haskell.org/package/microlens-mtl microlens-mtl>, < http://hackage.haskell.org/package/microlens-th microlens-th>, < http://hackage.haskell.org/package/microlens-ghc microlens-ghc>).
If you want to export getters or folds and don\'t mind the < http://hackage.haskell.org/package/contravariant contravariant> dependency, please consider using < http://hackage.haskell.org/package/microlens-contra microlens-contra>.
If you haven\'t ever used lenses before, read < http://hackage.haskell.org/package/lens-tutorial/docs/Control-Lens-Tutorial.html this tutorial>. (It\'s for lens, but it applies to microlens just as well.)
Note that microlens has no dependencies starting from GHC 7.10 (base-4.8). Prior to that, it depends on transformers-0.2 or above.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/home:/ShikharJ:/HaskellStack/SLE_12_SP1_Backports/x86_64 |
Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server
Provides :
ghc-microlens
ghc-microlens(x86-64)
libHSmicrolens-0.4.9.1-Il1wVteoTNOAmlNI3I8KNh-ghc8.4.3.so()(64bit)
Requires :