#2014: getLinkDeps panic
----------------------+-----------------------------------------------------
Reporter: fons | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.8.3
Component: Compiler | Version: 6.8.2
Severity: blocker | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
----------------------+-----------------------------------------------------
Comment (by igloo):
Here's a small testcase:
A.hs-boot:
{{{
module A where
}}}
A.hs:
{{{
module A where
}}}
B.hs:
{{{
module B where
import {-# SOURCE #-} A ()
import Language.Haskell.TH
expQ :: ExpQ
expQ = [| () |]
}}}
C.hs:
{{{
module C where
import B
foo :: a
foo = undefined
where second = $( expQ )
}}}
Gives:
{{{
ghc -Wall -fglasgow-exts -fth -c A.hs-boot
ghc -Wall -fglasgow-exts -fth -c A.hs
ghc -Wall -fglasgow-exts -fth -c B.hs
ghc -Wall -fglasgow-exts -fth -c C.hs
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
ghc-6.9.20080511: panic! (the 'impossible' happened)
(GHC version 6.9.20080511 for i386-unknown-linux):
getLinkDeps No iface for main:A
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2014#comment:4>
GHC <http://www.haskell.org/ghc/>
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