#4181: Template Haskell + -fdicts-strict fails
---------------------------------+------------------------------------------
Reporter: LouisWasserman | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.3 | Keywords: template haskell strict
dictionary
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: Compile-time crash
---------------------------------+------------------------------------------
{{{
module Foo where
import Language.Haskell.TH
foo :: Q Name
foo = do
VarE x <- [| (>>=) |]
return x
}}}
When compiled with -fdicts-strict -XTemplateHaskell, the resulting Core
contains
{{{
Foo.foo3 :: forall (m_aPo :: * -> *). Functor m_aPo
GblId
Foo.foo3 =
\ (@ m_aPo::* -> *) ->
Control.Exception.Base.runtimeError
@ Functor m_aPo
"Oops! Entered absent arg ww_sQJ{v} [lid] <pred>base:Functor{tc 2a}
m{tv aPo} [tv]"
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4181>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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