#2601: Extra parens in error message's displayed code
-------------------------------+--------------------------------------------
Reporter: kaol | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.8.2 | Severity: minor
Keywords: | Testcase:
Architecture: x86_64 (amd64) | Os: Linux
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I'm forwarding the bug [http://bugs.debian.org/499137 #499137] from
Debian's BTS.
With this example:
{{{
import System.Environment
main = do args <- filter (/= "--nofork") getArgs
return ()
}}}
I get this error message:
{{{
Couldn't match expected type `[[Char]]'
against inferred type `IO [String]'
In the second argument of `filter', namely `getArgs'
In a 'do' expression: args <- filter ((/= "--nofork")) getArgs
In the expression:
do args <- filter ((/= "--nofork")) getArgs
return ()
}}}
At some turn, the expression gained an extraneous pair of parenthesis.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2601>
GHC <http://www.haskell.org/ghc/>
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