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.comgregwebsErrorLocation.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
Dependenciesbase (==4.*), containers, lifted-base, template-haskell, transformers (>=0.2 && <0.4)
LicenseBSD3
AuthorGreg Weber
Maintainergreg@gregweber.info
CategoryDevelopment
Home pagehttps://github.com/gregwebs/FileLocation.hs
Source repositoryhead: git clone https://github.com/gregwebs/FileLocation.hs
Upload dateThu Nov 22 14:40:51 UTC 2012
Uploaded byGregWeber
DistributionsDebian:0.4.5.2, NixOS:0.4.5.2
Downloads1336 total (95 in last 30 days)

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