The file-location package
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
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|Versions||0.2.0, 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|
|Dependencies||base (==4.*), template-haskell, transformers (==0.2.*)|
|Source repository||head: git clone https://github.com/gregwebs/FileLocation.hs|
|Uploaded||Thu Aug 18 15:16:07 UTC 2011 by GregWeber|
|Distributions||Debian:0.4.5.2, NixOS:0.4.5.3, Stackage:0.4.5.3|
|Downloads||2103 total (138 in last 30 days)|
|Status||Docs uploaded by user [build log]|
Successful builds reported [all 1 reports]
- file-location-0.4.0.tar.gz [browse] (Cabal source package)
- Package description (included in the package)
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