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  • #7151

Closed
Open
Opened Aug 15, 2012 by bitonic@trac-bitonic

GHC accepts invalid type declaration

The declaration

type Foo = [Int, String]

is accepted by GHC with no extensions enabled, while it is clearly invalid Haskell. I didn't think about it but I suspect it has to do with DataKinds stepping in when it shouldn't.

Trac metadata
Trac field Value
Version 7.4.2
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
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Blocking
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Operating system
Architecture
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7.6.1
Milestone
7.6.1
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Reference: ghc/ghc#7151