error-or

Composable, hierarchical errors.

https://github.com/luntain/error-or-bundle/blob/master/error-or#readme

Version on this page:0.2.0.0@rev:1
LTS Haskell 24.18:0.3.0
Stackage Nightly 2025-11-04:0.3.0
Latest on Hackage:0.3.0

See all snapshots error-or appears in

BSD-3-Clause licensed by Kamil Dworakowski
Maintained by [email protected]
This version can be pinned in stack with:error-or-0.2.0.0@sha256:480965e23c9c193e2ca2523fed6f3b76aa911275c770e2b27598e1e6fca3f79b,1145

Module documentation for 0.2.0.0

Depends on 4 packages(full list with versions):
base, containers, mtl, text
Used by 3 packages in lts-19.18(full list with versions):
error-or-utils, inbox, mock-time

error-or

Build Status

Composable, hierarchical errors.

Capture all the errors by using the Applicative instance

Add error context to results from lower level with ‘tag’

Changes

0.2.0.0 (2021-06-24)

  • Renames to reduce the likelihood of name collisions on importing the module unqualified
    • rename err to failText, to suggest the use of MonadFail.fail
    • prepend ErrAcc constructors with ‘Err’ prefix
    • rename pretty to prettyErrAcc
  • Define a MonadError instance for ErrorOr

0.1.2.0 (2020-12-16)

  • Mark the OK and Error patterns of ErrorOr complete for the exhaustiveness checker

0.1.1.0 (2020-12-02)

  • Add tagIO