On 23 March 2010 10:02, Dupont Corentin
I’m relatively new to Haskell.
Welcome!
I’m wondering if it exist a tool to graphically represent Haskell code.
Look at the little graphics at: http://www.haskell.org/arrows/index.html (and following pages) from Ross Paterson.
If found these very useful to understand the Arrow monad.
Why not automatise this in a tool? Such a tool could draw a graphic from the code of a program.
1) Because no-one has written such a tool yet (though someone has suggested doing one as a GSoC project). 2) I'm of the opinion that unless you just use it on small snippets, the generated images will be too large and unweildy.
This could be done entirely automatically from the types of the functions.
Except not everyone provides type signatures for their functions; whilst it may be possible to use the GHC API to infer these type signatures, my understanding is that it's preferable to use other parsers such as haskell-src-exts as the GHC API is unstable. [shameless plug] My SourceGraph (http://hackage.haskell.org/package/SourceGraph) tool does function call visualisation as part of its analyses. [/shameless plug] -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com