#7787: modifyMVar does not restore value if callback returns error value
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Reporter: joeyadams | Owner:
Type: bug | simonmar
Priority: high | Status: new
Component: libraries/base | Milestone: 7.8.1
Resolution: | Version: 7.7
Operating System: Unknown/Multiple | Keywords:
Type of failure: Incorrect result at runtime | Architecture:
Test Case: | Unknown/Multiple
Blocking: | Difficulty:
| Unknown
| Blocked By:
| Related Tickets:
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Comment (by simonmar):
Fixed:
commit fd39d598e570145ac144b9cb6512c7faa3092ae1
{{{
Author: Simon Marlow <[email protected]>
Date: Fri Jul 19 09:09:39 2013 +0100
Fix #7787
Now the pair is evaluated strictly inside the exception handler. I
figured this would be less likely to introduce space leaky bugs than
using an irrefutable pattern match.
}}}
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7787#comment:6>
GHC <http://www.haskell.org/ghc/>
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