#5957: signatures are too permissive
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Reporter: maeder | Owner: simonpj
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler (Type checker) | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by simonpj@…):
commit 4f7599dbc50bba98869be5770bdec5a59e8292c2
{{{
Author: Simon Peyton Jones <[email protected]>
Date: Wed Apr 4 14:14:35 2012 +0100
Tighten up on type validity checking
Fixes Trac #5957, which pointed out that
Int -> Ord a => a -> a
is not Haskell 98
compiler/ghc.cabal.in | 2 +-
compiler/typecheck/TcMType.lhs | 102
+++++++++++++++++++++++++---------------
2 files changed, 65 insertions(+), 39 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5957#comment:2>
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