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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

Homepage:

https://github.com/gregwebs/FileLocation.hs

License:

BSD

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Metadata

Description

• 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

Maintainers

• Gentoo Haskell (haskell@gentoo.org) - Type: project

<pkgmetadata>
	<maintainer type="project">
		<email>haskell@gentoo.org</email>
		<name>Gentoo Haskell</name>
	</maintainer>
	<longdescription>
		Common debugging/error/exception functions that give file location information
		
		&gt; $(err "OH NO!")
		&gt;
		&gt; 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.
		
		&gt; debug [1,2,3]
		&gt;
		&gt; DEBUG: [1,2,3]
		&gt; [1,2,3]
		
		And The Template Haskell version.
		
		&gt; $(dbg) [1,2,3]
		&gt;
		&gt; DEBUG main:Main main.hs:1:3 [1,2,3]
		&gt; [1,2,3]
		
		Also there is a version of thrwIO that gives location information
		&gt; ($(thrwIO) $ AException) `catch` \e -&gt; putStrLn ("Caught " ++ show (e :: AException))
		&gt;
		&gt; 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
	</longdescription>
</pkgmetadata>

Lint Warnings

• [Warning] Missing md5-cache for version 0.4.9.1. Run 'ebuild <ebuild_file> manifest' or 'egencache' to generate it.

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