#7506: adding extra arguments to a foreign import statement can cause ghc to
panic
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Reporter: jwlato | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler (FFI) | Version: 7.6.1
Resolution: fixed | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Compile-time crash | Difficulty: Unknown
Testcase: ffi/should_fail/T7506 | Blockedby:
Blocking: | Related:
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Changes (by simonpj):
* status: new => closed
* difficulty: => Unknown
* resolution: => fixed
* testcase: => ffi/should_fail/T7506
Comment:
The problem here is simply that a foreign import with a "&" should not
have an arrow in its type. See the
[http://www.cse.unsw.edu.au/~chak/haskell/ffi/ffi/ffise4.html#x7-150004
FFI spec].
GHC should not crash though. Now it says
{{{
T7506.hs:6:1:
Unacceptable type in foreign declaration: Int -> IO ()
A foreign-imported address (via &foo) must have type (Ptr a) or
(FunPtr a)
When checking declaration:
foreign import ccall safe "static stdio.h &putchar" c_putchar
:: Int -> IO ()
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7506#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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