#5590: "guarded instances": instance selection can add extra parameters to the
class
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Reporter: nfrisby | Owner:
Type: feature request | Status: new
Priority: normal | Component: Compiler (Type checker)
Version: 7.2.1 | Keywords:
Testcase: | Blockedby:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Comment(by nfrisby):
Agda's [http://wiki.portal.chalmers.se/agda/agda.php?n=ReferenceManual
.With-expression with-patterns] seems similar…
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5590#comment:2>
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