#1531: _result can get bound to the wrong value in a breakpoint
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Reporter: mnislaih | Owner:
Type: bug | Status: new
Priority: low | Milestone: _|_
Component: GHCi | Version: 6.7
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: result001 | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Changes (by phercek):
* cc: [email protected] (added)
Comment:
I think I hit the same problem (ghci 6.10.1).
{{{
Ok, modules loaded: Main.
*Main> :! cat b.hs
fn :: Int -> Int
fn x =
if x > 10
then 10
else x
*Main> :break 3
Breakpoint 0 activated at b.hs:3:5-10
*Main> fn 5
Stopped at b.hs:3:5-10
_result :: Int = _
x :: Int = 5
2 fn x =
3 if x > 10
4 then 10
[b.hs:3:5-10] *Main> :force _result
*** Ignoring breakpoint
_result = 5
[b.hs:3:5-10] *Main>
}}}
_result should have been False and not 5.[[BR]]
_result does not correspond to the selected expression ('''x > 10''').
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1531#comment:6>
GHC <http://www.haskell.org/ghc/>
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