#7508: Make -XNoMonoPatBinds documentation match ghc behavior
-----------------------------+----------------------------------------------
Reporter: dagit | Owner:
Type: bug | Status: new
Priority: normal | Component: Documentation
Version: 7.6.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Blockedby:
Blocking: | Related:
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According to this documentation:
http://www.haskell.org/ghc/docs/7.4.1/html/users_guide/monomorphism.html
And this ticket: http://hackage.haskell.org/trac/ghc/ticket/4940
I would expect for ghc-7.4.1 to give an error about this example:
{{{
foo :: a -> a
bar :: a -> a
(foo, bar) = (\x -> x, \y -> y)
main = print $ foo $ bar 1
}}}
Trying this code on ghc 7.0.1 gives the error listed in #4940 but on
ghc-7.4.1 this code type checks and using -XNoMonoPatBinds gives this
warning:
{{{
on the commandline:
Warning: -XMonoPatBinds is deprecated: Experimental feature now
removed; has no effect
}}}
I suspect the bug is with the documentation and the section about mono pat
binds is in the user guide of the latest release of GHC.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7508>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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