#2639: Core lint failure with type families, data families, and typeclasses
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Reporter: ryani | Owner: chak
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 6.9
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Unknown
Testcase: T2639 | Architecture: Unknown/Multiple
Os: Unknown/Multiple |
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Changes (by chak):
* testcase: => T2639
* status: new => closed
* resolution: => fixed
Comment:
The type checker completely omitted to produce one cast plus associated
coercion when data family pattern matching was combined with local type
refinement.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2639#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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