[Haskell-cafe] Passing types as arguments

Simon Peyton-Jones simonpj at microsoft.com
Fri Mar 12 08:52:08 EST 2004

We pass values as proxies for types extensively in the "Scrap your
boilerplate" scheme.  The paper is on my home page.   The 'typeOf'
function is a good example.  

Part II coming up shortly.


| -----Original Message-----
| From: haskell-cafe-bounces at haskell.org
[mailto:haskell-cafe-bounces at haskell.org] On Behalf Of
| ajb at spamcop.net
| Sent: 12 March 2004 03:50
| To: haskell-cafe at haskell.org
| Subject: [Haskell-cafe] Passing types as arguments
| G'day everyone.
| Some time ago a suggestion came up about passing types as arguments
| to functions:
|     http://www.haskell.org/pipermail/haskell/2003-June/012184.html
| As a matter of curiosity, the topic has come up again on the wiki:
| For this example, we don't just want to pass types, we also want to
| pattern match on them.
| I'm curious if anyone else has put any thought to this idea.  Is it
| a syntax issue, or are there bad interactions with other parts of the
| type system?
| Cheers,
| Andrew Bromage
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