#1650: .boot modules interact badly with the ghci debugger
--------------------------------+-------------------------------------------
Reporter: mnislaih | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.8
Component: GHCi | Version: 6.7
Severity: normal | Keywords: debugger
Difficulty: Unknown | Os: Unknown
Testcase: break022 break023 | Architecture: Unknown
--------------------------------+-------------------------------------------
If a boot module is loaded _after_ its normal counterpart, which can
happen, the module ends up with empty modBreaks info, which leads to
errors while debugging.
It looks like boot modules take the place of their normal counterparts in
the HomePackageTable perhaps?
An example:
{{{
GHCi, version 6.7.20070826: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
Prelude> :l C
[1 of 4] Compiling B[boot] ( B.hs-boot, interpreted )
[2 of 4] Compiling A ( A.hs, interpreted )
[3 of 4] Compiling B ( B.hs, interpreted )
[4 of 4] Compiling C ( C.hs, interpreted )
Ok, modules loaded: B, B, C, A.
*C> :! touch A.hs
*C> :r
[1 of 4] Compiling B[boot] ( B.hs-boot, interpreted )
[2 of 4] Compiling A ( A.hs, interpreted )
Ok, modules loaded: B, B, C, A.
*C> :break a
Breakpoint 0 activated at A.hs:4:0-8
*C> a ()
Stopped at A.hs:4:0-8
_result :: a = _
3
4 a x = b x
[A.hs:4:0-8] *C> :st
Stopped at A.hs:4:6-8
_result :: () = _
x :: () = ()
3
4 a x = b x
[A.hs:4:6-8] *C> :st
*** Exception: Error in array index
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1650>
GHC <http://www.haskell.org/ghc/>
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