[Template-haskell] not an instance of Lift?
Simon Peyton-Jones
simonpj at microsoft.com
Tue Apr 5 02:46:16 EDT 2005
Yes you can make new instances of Lift. The class itself is defined in
Language.Haskell.TH.Syntax.
Simon
| -----Original Message-----
| From: template-haskell-bounces at haskell.org
[mailto:template-haskell-bounces at haskell.org] On
| Behalf Of WANG Meng
| Sent: 05 April 2005 05:20
| To: template-haskell at haskell.org
| Subject: [Template-haskell] not an instance of Lift?
|
| Hi All,
|
| When I am trying to define the following program:
|
| test x = [|x|]
| y = test (Just True)
|
| The compiler will complain that Maybe Bool is not an instance of Lift.
|
| Is there any way to resolve this? Can I add instances to the class
Lift?
|
|
| -W-M-
| @ @
| |
| \_/
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