map-syntax

Syntax sugar for defining maps

Version on this page:	0.2@rev:1
LTS Haskell 24.33:	0.3@rev:10
Stackage Nightly 2026-03-13:	0.3@rev:10
Latest on Hackage:	0.3@rev:10

See all snapshots map-syntax appears in

BSD-3-Clause licensed and maintained by Doug Beardsley

This version can be pinned in stack with:map-syntax-0.2@sha256:a93319d0e596c19820b62ff5e62f97f26133b4af8500b143ecdd3a8ab1ee271e,2237

Module documentation for 0.2

Data
- Data.Map
  - Data.Map.Syntax

Depends on 3 packages(full list with versions):

base, containers, mtl

Used by 1 package in lts-3.22(full list with versions):

heist

Haskell’s canonical list of tuples syntax for defining maps is not very convenient and also has ambiguous semantics. This package leverages do notation to create a lighter syntax that makes semantics explicit and also allows the option of fail-fast handling of duplicate keys.