[GHC] #8577: Polymorphism and typed TH
GHC
ghc-devs at haskell.org
Thu Dec 5 08:31:20 UTC 2013
#8577: Polymorphism and typed TH
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Reporter: monoidal | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Template Haskell | Version: 7.6.3
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture: Unknown/Multiple
Type of failure: None/Unknown | Difficulty: Unknown
Test Case: | Blocked By:
Blocking: | Related Tickets:
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Comment (by Simon Peyton Jones <simonpj@…>):
In [changeset:"8b642debfabe00377f47d461d31d70636bf0fce3/ghc"]:
{{{
#!CommitTicketReference repository="ghc"
revision="8b642debfabe00377f47d461d31d70636bf0fce3"
Typecheck typed TH splices properly (fix Trac #8577)
This was an egregious error. If e :: T (Q ty1)
then when we have the splice
$e :: ty2
we must ensure that ty1~ty2 before we even think about
running the splice!
I took the opportunity to remove the dead-code tcSpliceDecls
altogether.
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8577#comment:1>
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