Add instance IsString ShowS where fromString = showString
lennart at augustsson.net
Mon Oct 5 08:17:42 EDT 2009
What Ganesh said.
On Mon, Oct 5, 2009 at 1:32 PM, Ross Paterson <ross at soi.city.ac.uk> wrote:
> On Sun, Sep 27, 2009 at 10:51:04PM +0200, Bas van Dijk wrote:
>> It would be really nice to use OverloadedStrings when constructing a
>> ShowS, for example in a definition of showsPrec in an instance for
>> The patch attached in the ticket adds the necessary instance to
>> instance IsString ShowS where
>> fromString = showString
>> Note that this does require TypeSynonymInstances.
> and also FlexibleInstances. I think that's a problem, as Ganesh outlined.
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