located-base

Location-aware variants of partial functions

http://github.com/gridaphobe/located-base

Latest on Hackage:

0.1.1.1

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD-3-Clause licensed by Eric Seidel

Maintained by [email protected]

This library provides variants of standard partial functions that include their call-site in the error message when they crash.

For example:

ghci> Data.List.Located.head []
*** Exception: Prelude.head: empty list
Callstack:
  error, called at src/Data/List/Located.hs:19:14 in locat_KhGZ7Rz1bn9DKFeFxhawNB:Data.List.Located
  head, called at <interactive>:6:1 in interactive:Ghci1