runTestTT from ghci caused a panic.
Inside a REPL within Emacs+Intero-mode, running a stack project. I am writing a simple lexer for fun and I decided to try to see why I wasn't getting expected behaviour from an HUnit function.
runTestTT classificationTests
ghc: panic! (the 'impossible' happened)
(GHC version 8.4.4 for x86_64-unknown-linux):
nameModule
system $dShow_a5Xw
Call stack:
CallStack (from HasCallStack):
callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in ghc:Outputable
pprPanic, called at compiler/basicTypes/Name.hs:241:3 in ghc:Name
Trac metadata
Trac field | Value |
---|---|
Version | 8.4.4 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |