haskell-src-exts-util

Helper functions for working with haskell-src-exts trees

https://github.com/pepeiborra/haskell-src-exts-util

LTS Haskell 23.16:	0.2.5
Stackage Nightly 2025-03-29:	0.2.5
Latest on Hackage:	0.2.5

See all snapshots haskell-src-exts-util appears in

BSD-3-Clause licensed by Neil Mitchell, Jose Iborra

Maintained by pepeiborra@gmail.com

This version can be pinned in stack with:haskell-src-exts-util-0.2.5@sha256:c782ce1cb01866896b6656774a28bad075d2147067e41875c1c5987e7b93be64,1427

Module documentation for 0.2.5

Language
- Language.Haskell
  - Language.Haskell.Exts
    - Language.Haskell.Exts.Util

Depends on 7 packages(full list with versions):

base, containers, data-default, haskell-src-exts, semigroups, transformers, uniplate

haskell-src-exts-util

A small suite of helper functions for working with haskell-src-exts:

Free variables
Bound variables
Minimal (approximate) rebracketing of AST values such that prettyprint roundtrips.

Acknowledgments

This package extracts some the HSE functions in HLint and generalizes them. The original code was authored over the years by Neil Mitchell and the rest of HLint contributors.

Changes

0.2.5

(Neil) Make sure to capture variables bound in PFieldPun
(Neil) Make freeVars on Foo{a} include ‘a’

0.2.4

Neil fixed the spotting of brackets inside a lambda.

0.2.3

isAtom is now more complete, thanks to Neil M.

0.2.2

Improved handling of OverloadedLabel syntax, thanks to Neil M.
Changed the treatment of multiple function composition in needParen. The new treatment is less keen to remove parentheses. Note that this is a change of behavior.
GHC 8.4 compatibility, courtesy of Ryan G. Scott