Warnings for redundant imports doesn't take name shadowing into account (Regression)
Reproduction:
module Log where
import Prelude hiding (log)
f :: ()
f = log where log = ()Compiling this with -Wall On GHC 7.8.2:
> ghc Log.hs -Wall
[1 of 1] Compiling Log ( Log.hs, Log.o )
Log.hs:3:1: Warning:
The import of ‘Prelude’ is redundant
except perhaps to import instances from ‘Prelude’
To import instances alone, use: import Prelude()The suggestion is incorrect since removing the import statement gives the following warning:
Log.hs:4:15: Warning:
This binding for ‘log’ shadows the existing binding
imported from ‘Prelude’ at Log.hs:1:8-10
(and originally defined in ‘GHC.Float’)On GHC 7.6.3 the Reproduction does not give any warnings (which is correct).
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |