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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #1445
Closed
Open
Issue created Jun 21, 2007 by Ashley Yakeley <ashley@semantic.org>@trac-ashley

implicit parameter not hoisted

Try compiling this:

{-# OPTIONS -fglasgow-exts #-}
module Bug where
	f :: () -> (?p :: ()) => () -> ()
	f _ _ = ();

	g :: (?p :: ()) => ()
	g = f () ()

Results:

Bug.hs:7:10:
    Couldn't match expected type `{?p::()}' against inferred type `()'
    In the second argument of `f', namely `()'
    In the expression: f () ()
    In the definition of `g': g = f () ()

Expected: to compile.

Trac metadata
Trac field Value
Version 6.6
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
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Blocking
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Operating system Unknown
Architecture Unknown
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