debugger gives "Can't unify" when stopped at an exception
Presumably due to exceptions now using existential types, the GHCi debugger now gives:
ghc: panic! (the 'impossible' happened)
(GHC version 6.9.20080731 for x86_64-unknown-linux):
Can't unify
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
when it stops at an exception. See break011
and break024
for testcases.
Trac metadata
Trac field | Value |
---|---|
Version | 6.8.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | break011, break024 |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Unknown |
Architecture | Unknown |