statestack

Simple State-like monad transformer with saveable and restorable state

Version on this page:0.3
LTS Haskell 23.26:0.3.1.1@rev:4
Stackage Nightly 2025-07-03:0.3.1.1@rev:4
Latest on Hackage:0.3.1.1@rev:4

See all snapshots statestack appears in

BSD-3-Clause licensed by Brent Yorgey
Maintained by [email protected]
This version can be pinned in stack with:statestack-0.3@sha256:36131f4e7c9a821a7460a2e54cda51e28c4ae1161f7bba4b0b254f8d4241efe4,1071

Module documentation for 0.3

Used by 1 package in lts-16.11(full list with versions):
diagrams-postscript

Simple State-like monad transformer where states can be saved to and restored from an internal stack.

Changes

0.3 (13 November 2019)

  • Now builds with with GHC 7.10 through 8.8
  • Drop support for GHC < 7.10
  • Remove deprecated ListT instance

0.2.0.5-r2 (2 April 2018)

  • Allow base-4.11
  • Allow transformers-compat-0.6.x

0.2.0.5-r1 (8 August 2017)

  • Allow base-4.10

0.2.0.5 (17 January 2016)

  • Allow transformers-compat-0.5

0.2.0.4 (19 April 2015)

  • Use transformers-compat to suppress deprecation warnings.

0.2.0.3 (2 June 2014)

  • Allow mtl-2.2
  • Allow transformers-0.4

0.2 (5 Nov 2013)

  • Update to work with latest versions of everything

0.1: Initial release