#3447: Class restrictions on type instances
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Reporter: LysikovVV | Owner:
Type: feature request | Status: new
Priority: normal | Milestone: _|_
Component: Compiler | Version: 6.10.4
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Changes (by simonpj):
* milestone: 6.14.1 => _|_
Comment:
Ah yes, sorry. I don't think I see a good way to achieve what you want,
at least not without a new, ad-hoc extension.
Happily, though, what you want is to ''reject'' more programs. You can
still write the programs you want.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3447#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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