The ghc-vis package

[Tags: bsd3, library]

Visualize live data structures in GHCi. Evaluation is not forced and you can interact with the visualized data structures. This allows seeing Haskell's lazy evaluation and sharing in action.

See for the basic usage of ghc-vis or watch a short video demonstrating how it can be used with GHCi's debugger:


Versions0.1, 0.2, 0.2.1, 0.3, 0.3.1,, 0.3.2, 0.4, 0.5, 0.6, 0.6.1,, 0.7,, 0.7.1, 0.7.2,,,,,,,
Change logNone available
Dependenciesbase (==4.6.*), cairo (==0.12.*), containers (>=0.4 && <0.6), deepseq (==1.3.*), fgl (==5.4.*), ghc-heap-view (==0.4.*), graphviz (==2999.16.*), gtk (==0.12.*), mtl (>=2.0 && <2.2), SDL (==0.6.*), svgcairo (>=0.12), text (==0.11.*), transformers (==0.3.*), xdot (==0.2.*)
CopyrightDennis Felsing 2012
AuthorDennis Felsing <>
MaintainerDennis Felsing <>
CategoryGHC, Debug, Development
Home page
Source repositoryhead: git clone git://
UploadedTue Mar 5 02:33:41 UTC 2013 by DennisFelsing
Downloads3293 total (219 in last 30 days)
StatusDocs uploaded by user
Build status unknown [no reports yet]




graph"Enable graph view using Graphviz"Enabled
full"Full ghc-vis window: decorations, buttons, legend"Enabled
sdl"SDL window"Disabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info


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