Internal error during typechecking of a hole in GHCi when there's shadowed identifiers
GHCi, version 8.4.3: http://www.haskell.org/ghc/ :? for help
Prelude> let x = ()
Prelude> let x = ()
Prelude> :t _
<interactive>:1:1: error:
GHC internal error: ‘Ghci1.x’ is not in scope during type checking, but it passed the renamer
tcl_env of environment: []
Seems to only happen when there were two identifiers defined with the same name.
As verified by mpickering on IRC this isn't reproducible in 8.2.2.
Trac metadata
Trac field | Value |
---|---|
Version | 8.4.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |