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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
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  • #6034
Closed
Open
Issue created Apr 23, 2012 by Richard Eisenberg@raeDeveloper

Parse error when using ' with promoted kinds

The following code generates a parse error:

{-# LANGUAGE DataKinds #-}

data Proxy a = Proxy
foo :: Proxy '['[True, False],'[False]]
foo = Proxy

The problem is that the '[' prefix to the type index is parsed as a character. Rewriting that string as '[ ' fixes the problem.

This is admittedly a very low priority problem, but it seemed to be enough of an infelicity to be worth reporting.

This was tested on 7.5.20120420.

Trac metadata
Trac field Value
Version 7.5
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (Parser)
Test case
Differential revisions
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