microlens: A tiny part of the lens library which you can depend upon

This is an extract from 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.

Use this library:

• if you want to define lenses or traversals in your own library, but don't want to depend on lens

• if you are new to lenses and want a small library to play with, but don't want to use something “inferior” or have to relearn things when/if you switch to lens

Don't use this library:

• if you need Isos, Prisms, indexed traversals, at, ix, or actually anything else which isn't defined here

• if you think lenses compose “in the wrong order” (in which case you're looking for fclabels)

Note that microlens has no dependencies starting from GHC 7.10 (base-4.8). Prior to that, it has to depend on transformers-0.2 or above.

Also note that it's not done yet and there's a lot of things missing and I'm still writing a tutorial for it.

Modules

[Index]

Downloads

• microlens-0.1.3.0.tar.gz [browse] (Cabal source package)
• Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

• Artyom, stevenfontanella

For package maintainers and hackage trustees

• edit package information

Candidates

• 0.4.13.0, 0.4.13.1, 0.4.14.0