#2187: Top-level bindings are broken for polymorphic values
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Reporter: yallop | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.10 branch
Component: Compiler | Version: 6.8.2
Severity: major | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Changes (by igloo):
* difficulty: => Unknown
* milestone: => 6.10 branch
Comment:
Thanks for the report. Your first example is deliberately broken (relative
to Haskell98); see
http://www.haskell.org/ghc/docs/latest/html/users_guide/monomorphism.html
for details, or use `-XNoMonoPatBinds` to get the Haskell98-specified
behaviour.
If you give a type signature for `x` then I would have expected it to
work; Simon?
yallop, I assume you ran into this problem in a real program?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2187#comment:1>
GHC <http://www.haskell.org/ghc/>
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