<div dir="ltr"><div>Hi,</div><div><br></div><div>Sometimes, when working with a type-checked AST, it can be useful to know the types of subexpressions as well. A simple use case would be any kind of static analysis of the code. Currently, the type-checker discards all intermediate results after the type checking ends, so the AST only has info about nodes with names. Storing the types of subexpressions somewhere would be a great benefit for many tools. Do you plan on including these intermediate results in the HIE file?</div><div><br></div><div>Regards,</div><div>Peter<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 14, 2018 at 3:30 PM, Simon Peyton Jones via ghc-devs <span dir="ltr"><<a href="mailto:ghc-devs@haskell.org" target="_blank">ghc-devs@haskell.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:12.0pt">Interesting.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Please do keep the wiki page up to date so that it accurately describes the current design. For example, I hope you’ll flesh out what a “</span>simplified, source aware, annotated AST derived from the Renamed/Typechecked
Source” <span style="font-size:12.0pt">really is.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Why not put the .hie-file info into the .hi file? (Optionally, of course.)
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<p class="MsoNormal"><span style="font-size:12.0pt">What tools/libraries do you plan to produce to allow clients to read a .hie file and make send of the contents?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Simon<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> ghc-devs <<a href="mailto:ghc-devs-bounces@haskell.org" target="_blank">ghc-devs-bounces@haskell.org</a>>
<b>On Behalf Of </b>Zubin Duggal<br>
<b>Sent:</b> 14 May 2018 13:32<br>
<b>To:</b> <a href="mailto:ghc-devs@haskell.org" target="_blank">ghc-devs@haskell.org</a><br>
<b>Cc:</b> Joachim Breitner <<a href="mailto:mail@joachim-breitner.de" target="_blank">mail@joachim-breitner.de</a>>; Gershom B <<a href="mailto:gershomb@gmail.com" target="_blank">gershomb@gmail.com</a>><br>
<b>Subject:</b> HIE Files<u></u><u></u></span></p>
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Hello,<u></u><u></u></p>
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I will be working on a GSOC project that will allow GHC to output a new .hie file to be written next to .hi files. It will contain information about the typechecked Haskell AST, allowing tooling(like haddocks --hyperlinked-source and haskell-ide-engine) to
work without having to parse, rename and typecheck files all over again.<u></u><u></u></p>
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I have made a GHC wiki page containing more details here:<br>
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<a href="https://ghc.haskell.org/trac/ghc/wiki/HIEFiles" target="_blank">https://ghc.haskell.org/trac/<wbr>ghc/wiki/HIEFiles</a><u></u><u></u></p>
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<u></u> <u></u></p>
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Looking forward to any comments and suggestions.<u></u><u></u></p>
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Thanks,<u></u><u></u></p>
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<p class="MsoNormal" style="margin-right:0cm;margin-bottom:6.0pt;margin-left:0cm">
Zubin.<u></u><u></u></p>
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