#7026: Impredicative implicit parameters
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Reporter: Ashley Yakeley | Owner:
Type: bug | Status: new
Priority: normal | Milestone: _|_
Component: Compiler (Type checker) | Version: 7.4.2
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: GHC rejects valid
program
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by simonpj):
Yes, maybe use a wrapper like this
{{{
newtype VM a = VM ((?jvmenv :: VMEnv) => IO a)
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7026#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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