#5936: Support for data families in generics
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Reporter: reinerp | Owner: dreixel
Type: feature request | Status: patch
Priority: normal | Milestone: 7.6.1
Component: Compiler | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by jpm@…):
commit 156ec95a8e92cc8314db134311d2fbb0269f0679
{{{
Author: Jose Pedro Magalhaes <j...@cs.ox.ac.uk>
Date: Thu Jun 21 12:23:01 2012 +0100
Allow deriving Generic1
This completes the support for generic programming introduced
in GHC 7.2. Generic1 allows defining generic functions that
operate on type containers, such as `fmap`, for instance.
Along the way we have fixed #5936 and #5939, allowing
deriving Generic/Generic1 for data families, and disallowing
deriving Generic/Generic1 for instantiated types.
Most of this patch is Nicolas Frisby's work.
compiler/basicTypes/OccName.lhs | 5 +-
compiler/prelude/PrelNames.lhs | 13 +-
compiler/typecheck/TcDeriv.lhs | 158 +++++++----
compiler/typecheck/TcGenGenerics.lhs | 514
++++++++++++++++++++++++++--------
4 files changed, 521 insertions(+), 169 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5936#comment:10>
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