Poor error message if type signature lacks definition
The file
nub :: aProduces the error message in GHC:
Temp.hs:5:0: Not in scope: `nub'The problem isn't that nub is not in scope, but that there is no definition. Importing Data.List (and bringing nub into scope) doesn't solve the problem, but gives a new error message. Hugs does quite a bit better:
ERROR file:.\Temp.hs:5 - Missing binding for variable "nub" in type signatureTrac metadata
| Trac field | Value |
|---|---|
| Version | 6.8.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Unknown |
| Architecture | Unknown |