#8306: NegativeLiterals allows negative type-level integers
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Reporter: monoidal | Owner: thoughtpolice
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.7
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture: Unknown/Multiple
Type of failure: GHC accepts | Difficulty: Easy (less than 1
invalid program | hour)
Test Case: | Blocked By:
Blocking: | Related Tickets:
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Comment (by Austin Seipp <austin@…>):
In [changeset:3ee47002dd483e0daa604d37ec45dc33133ff04b/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="3ee47002dd483e0daa604d37ec45dc33133ff04b"
Make sure type literals aren't negative (#8306)
As Krzysztof pointed out in #8306, with NegativeLiterals and DataKinds,
definitions such as:
type T = -1
were accepted, although type literals must be greater than zero.
Signed-off-by: Austin Seipp <[email protected]>
}}}
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8306#comment:2>
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