Non-ASCII type names get garbled when their `TypeRep` is shown
Typeable allows easily showing the name of a type by, well, using show on it. However, this does not work right for types with Unicode symbols in their name:
GHCi, version 8.2.1: http://www.haskell.org/ghc/ :? for help
Prelude> :m +Data.Typeable
Prelude Data.Typeable> data W = W
Prelude Data.Typeable> typeOf W
W
Prelude Data.Typeable> data Ω = Ω
Prelude Data.Typeable> typeOf Ω
ΩThis did not yet happen in GHC-7:
GHCi, version 7.10.2: http://www.haskell.org/ghc/ :? for help
Prelude> :m +Data.Typeable
Prelude Data.Typeable> data W = W
Prelude Data.Typeable> typeOf W
W
Prelude Data.Typeable> data Ω = Ω
Prelude Data.Typeable> typeOf Ω
ΩN.b.:
Prelude> import Data.ByteString.Char8 as BC8
Prelude BC8> BC8.putStrLn $ pack "Ω"
ΩSo, this appears to be a UTF-8 problem – something interprets bytestring-stored type-representation names as a different character encoding.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.2.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | low |
| Resolution | Unresolved |
| Component | libraries/base |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |