#7489: Obscure warning: Var/Type length mismatch when using GADTs and
TypeFamilies
-------------------------------------------------+--------------------------
Reporter: portnov | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 7.6.1
Resolution: fixed | Keywords:
Os: Unknown/Multiple | Architecture:
Unknown/Multiple
Failure: Incorrect warning at compile-time | Difficulty: Unknown
Testcase: indexed_types/should_compile/T7489 | Blockedby:
Blocking: | Related:
-------------------------------------------------+--------------------------
Changes (by simonpj):
* status: new => closed
* difficulty: => Unknown
* resolution: => fixed
* testcase: => indexed_types/should_compile/T7489
Comment:
commit 3394d49af13697626145aca6d80b65ae8661418c
{{{
Author: Simon Peyton Jones <[email protected]>
Date: Wed Dec 19 17:37:27 2012 +0000
Pass the correct inst_tys argument to dataConCannotMatch, in
mkRecSelBinds
This fixes Trac #7503.
compiler/typecheck/TcTyClsDecls.lhs | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
}}}
The commit message is wrong... this is the patch that fixes #7489!
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7489#comment:2>
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The Glasgow Haskell Compiler
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