hs-boot/hsig ambiguity empty data declaration or type with no constructors
When I write in a boot or signature file:
data Fooit is ambiguous whether or not this is a fully-specified empty data declaration, or a data type which has its constructors unspecified. This doesn't matter too much for hs-boot (since you can't use the data constructors in any case) but for signatures we might want to force a data type to be empty. Though I think this case should be rare.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.11 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | lowest |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Blocking | |
| CC | |
| Operating system | |
| Architecture |