The file-location package

[Tags: bsd3, library]

Common debugging/error/exception functions that give file location information

> $(err "OH NO!") > > main:Main main.hs:16:1 OH NO!

Notice how it displays package:module file:line:character It exposes the functions err (error), undef (undefined), and trc (Debug.Trace.trace). All of these behave the same as their normal counterpart but also spit out a location.

Here is my favorite helper, debug, which is like trace but just show the value.

> debug [1,2,3] > > DEBUG: [1,2,3] > [1,2,3]

And The Template Haskell version.

> $(dbg) [1,2,3] > > DEBUG main:Main main.hs:1:3 [1,2,3] > [1,2,3]

Also there is a version of thrwIO that gives location information > ($(thrwIO) $ AException) `catch` \e -> putStrLn ("Caught " ++ show (e :: AException)) > > Caught AException "main:Main test/main.hs:25:6"

See module for a listing of all the functions with short descriptions, and the homepage for some more examples https://github.com/gregwebs/ErrorLocation.hs


Properties

Versions0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.5.1, 0.4.5.2, 0.4.5.3
Dependenciesbase (==4.*), monad-control (==0.2.*), template-haskell
LicenseBSD3
AuthorGreg Weber
Maintainergreg@gregweber.info
CategoryDevelopment
Home pagehttps://github.com/gregwebs/ErrorLocation.hs
Source repositoryhead: git clone https://github.com/gregwebs/FileLocation.hs
Upload dateThu Aug 11 00:33:19 UTC 2011
Uploaded byGregWeber
DistributionsDebian:0.4.5.2, NixOS:0.4.5.3
Downloads1965 total (243 in last 30 days)

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