[GHC] #7973: Simplifier introduces unbound kind variables (caught by -dcore-lint)
GHC
ghc-devs at haskell.org
Mon Jun 10 12:05:28 CEST 2013
#7973: Simplifier introduces unbound kind variables (caught by -dcore-lint)
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Reporter: diatchki | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler (Type checker)
Version: 7.7 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Blockedby:
Blocking: | Related:
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Comment(by simonpj@…):
commit 8c846f714223c33adef76e6072ba94d3e33b7e97
{{{
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date: Mon Jun 10 11:04:09 2013 +0100
Fix substitution but in liftCoSubst (Trac #7973)
Iavor uncovered this subtle omission in liftCoSubst. The problem and
its
solution are desribed in
Note [Substituting kinds in liftCoSubst]
compiler/types/Coercion.lhs | 82
+++++++++++++++++++++++++++++++++++++++++--
1 files changed, 79 insertions(+), 3 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7973#comment:1>
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