Send Beginners mailing list submissions to
[email protected]
To subscribe or unsubscribe via the World Wide Web, visit
http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
or, via email, send a message with subject or body 'help' to
[email protected]
You can reach the person managing the list at
[email protected]
When replying, please edit your Subject line so it is more specific
than "Re: Contents of Beginners digest..."
Today's Topics:
1. Viewing desugared classes and instances (PATRICK BROWNE)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Feb 2018 17:15:10 +0000
From: PATRICK BROWNE <[email protected]>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <[email protected]>
Subject: [Haskell-beginners] Viewing desugared classes and instances
Message-ID:
<cagflrkcj2eoe0inty8vtshukk8ghphhjxdpac92b8-rtkqi...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
In the Haskell litrature desugaring of type clases to a data type is
mentioned.
For example:
class Foo a where
quux :: a -> Int
muux :: a -> Bool
Desugared to
data FooD a = FooD -- class Foo a where
{ quuxD :: a -> Int -- quux :: a -> Int
, muuxD :: a -> Bool -- muux :: a -> Bool
}
Is there any way using core dumps to actuall view the desugring of classes,
sub-classes, and instances, in my own code?
I have tried:
ghc -c -ddump-ds Foo.hs
But I cannot understand the output.
Thanks,
Pat
--
This email originated from DIT. If you received this email in error, please
delete it from your system. Please note that if you are not the named
addressee, disclosing, copying, distributing or taking any action based on
the contents of this email or attachments is prohibited. www.dit.ie
Is ó ITBÁC a tháinig an ríomhphost seo. Má fuair tú an ríomhphost seo trí
earráid, scrios de do chóras é le do thoil. Tabhair ar aird, mura tú an
seolaí ainmnithe, go bhfuil dianchosc ar aon nochtadh, aon chóipeáil, aon
dáileadh nó ar aon ghníomh a dhéanfar bunaithe ar an ábhar atá sa
ríomhphost nó sna hiatáin seo. www.dit.ie
Tá ITBÁC ag aistriú go Gráinseach Ghormáin – DIT is on the move to
Grangegorman <http://www.dit.ie/grangegorman>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://mail.haskell.org/pipermail/beginners/attachments/20180221/0606dd69/attachment-0001.html>
------------------------------
Subject: Digest Footer
_______________________________________________
Beginners mailing list
[email protected]
http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
------------------------------
End of Beginners Digest, Vol 116, Issue 2
*****************************************
