Parser accepts malformed types with implicit parameters
The parser in GHC 6.11 currently accepts this:
thing :: (?dude :: Int) -> Int
thing = undefined
Where the type should really be written with => like
thing :: (?dude :: Int) => Int
thing = undefined
Running hlint on the malformed-but-accepted-by-GHC version crashes haskell-src-exts:
benl@humboldt:~$ cat tmp/Main.hs
main = undefined
thing :: (?dude :: Int) -> Int
thing = undefined
benl@humboldt:~$ hlint tmp/Main.hs
hlint: src/Language/Haskell/Exts/ParseUtils.hs:(841,18)-(863,53): Non-exhaustive patterns in case
Trac metadata
Trac field | Value |
---|---|
Version | 6.11 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler (Parser) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |