#2102: Typeclass membership doesn't bring coercion superclass requirements into
scope
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Reporter: ryani | Owner: chak
Type: bug | Status: new
Priority: normal | Milestone: 6.10 branch
Component: Compiler (Type checker) | Version: 6.8.2
Severity: normal | Resolution:
Keywords: superclass equalities | Difficulty: Unknown
Testcase: | Architecture: Unknown/Multiple
Os: Unknown/Multiple |
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Changes (by chak):
* keywords: => superclass equalities
Comment:
Sorry, but this one is not going to be fixed for 6.10.1. It requires an
extension of the data structure between the type checker and desugarer to
get the type-preserving translation right. This is too serious a change
to attempt shortly before a release.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2102#comment:6>
GHC <http://www.haskell.org/ghc/>
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