type variable out of scope in worker/wrapper transformation
I ran into a bug while using type families in an array library that I'm writing. The original error looked something like:
Declaration for $wslice:
Iface type variable out of scope: s
I've tried to strip down the code as much as possible into the attached cabal package with two modules. The package builds itself with -dcore-lint and -O2; so just running cabal install inside of the package should cause a Core Lint error.
Let me know if there's any more information I can provide to help diagnose this issue.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.10.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |