[Template-haskell] reifyDecl and reifyType not working
g9ks157k at acme.softbase.org
Mon Sep 10 17:59:15 EDT 2007
Am Montag, 10. September 2007 22:13 schrieb Ian Lynagh:
> On Mon, Sep 10, 2007 at 06:57:09PM +0200, Wolfgang Jeltsch wrote:
> > Am Montag, 10. September 2007 14:18 schrieb Ian Lynagh:
> > > On Mon, Sep 10, 2007 at 08:59:45AM +0100, Simon Peyton-Jones wrote:
> > > > 'reifyDecl' is not a language construct; it's a function. You need
> > > > to import Language.Haskell.TH to bring it into scope.
> > >
> > > It's also just called reify these days.
> > of type Name. The Template Haskell library doesn’t seem to provide a way
> > to create a Name value which always refers to the same entity, regardless
> > of the splice where it is used. So I wanted to use workarounds like
> > this:
> > className :: Name
> > ClassD _ className _ _ _ = reifyDecl Class
> You can get names with the ' and '' syntax:
Oh, I didn’t know about this syntax. Is this documented somewhere?
More information about the template-haskell