transformers

Version 0.6.0.1 revision 1 uploaded 2021-07-09T22:54:19.000Z by RossPaterson.

Package meta

Synopsis

Concrete functor and monad transformers

Description

A portable library of functor and monad transformers, inspired by the paper

• "Functional Programming with Overloading and Higher-Order Polymorphism", by Mark P Jones, in Advanced School of Functional Programming, 1995 (http://web.cecs.pdx.edu/~mpj/pubs/springschool.html).

This package contains:

• the monad transformer class (in Control.Monad.Trans.Class)

• concrete functor and monad transformers, each with associated operations and functions to lift operations associated with other transformers.

The package can be used on its own in portable Haskell code, in which case operations need to be manually lifted through transformer stacks (see Control.Monad.Trans.Class for some examples). Alternatively, it can be used with the non-portable monad classes in the mtl or monads-tf packages, which automatically lift operations introduced by monad transformers through other transformers.

Author

Andy Gill, Ross Paterson

Bug reports

http://hub.darcs.net/ross/transformers/issues

Category

Control

Copyright

n/a

Homepage

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Maintainer

Ross Paterson <R.Paterson@city.ac.uk>

Package URL

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Stability

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Components

• lib:transformers