map-syntax

Syntax sugar for defining maps

Version on this page:	0.3@rev:7
LTS Haskell 24.16:	0.3@rev:9
Stackage Nightly 2025-10-24:	0.3@rev:9
Latest on Hackage:	0.3@rev:9

See all snapshots map-syntax appears in

BSD-3-Clause licensed by Doug Beardsley

Maintained by [email protected]

This version can be pinned in stack with:map-syntax-0.3@sha256:f7082df82d8fc3333ef671ab299db890f598c8418a205d6180ce53768dd009ef,2471

Module documentation for 0.3

Data
- Data.Map
  - Data.Map.Syntax

Depends on 3 packages(full list with versions):

base, containers, mtl

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.