#2668: Standalone deriving doesn't do newtype deriving properly
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Reporter: ryani | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.11
Severity: normal | Resolution:
Keywords: | Testcase:
Architecture: Unknown/Multiple | Os: Unknown/Multiple
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Comment (by ajd):
When I comment out the standalone stuff, GHC gives the message
{{{
The equation(s) for 'ret' have one argument,
but its type 'M s i i a' has none
In the definition for the method 'ret'
In the instance declaration for IxMonad (M s)
}}}
which seems kind of similar...
I'm using 6.8.2 on Windows.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2668#comment:1>
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