[GHC] #10561: "deriving (Functor)" on a polykinded type produces ill-kinded instance
GHC
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Thu Jun 25 14:51:17 UTC 2015
#10561: "deriving (Functor)" on a polykinded type produces ill-kinded instance
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Reporter: rwbarton | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.11
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
Type of failure: None/Unknown | Unknown/Multiple
Blocked By: | Test Case:
Related Tickets: | Blocking:
| Differential Revisions:
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Comment (by Simon Peyton Jones <simonpj@…>):
In [changeset:"9a348640c5ddd63c3385d3722fb3ade38013a148/ghc"]:
{{{
#!CommitTicketReference repository="ghc"
revision="9a348640c5ddd63c3385d3722fb3ade38013a148"
Improve kind-checking for 'deriving' clauses
The main payload is in 'mk_functor_like_constraints' in
TcDeriv.inferConstraints.
This is moving towards a fix for Trac #10561
}}}
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10561#comment:2>
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