#1509: Make unboxed tuples more supported
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Reporter: guest | Owner:
Type: feature request | Status: new
Priority: low | Milestone: _|_
Component: Compiler | Version: 6.6.1
Severity: minor | Keywords:
Difficulty: Unknown | Os: Unknown
Testcase: | Architecture: Unknown
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Unboxed tuples {{{(# a, b #)}}} do not have the same features as boxed
tuples {{{( a, b )}}}. In particular:
1) There is no prefix form, {{{(#,#) a b}}} is not equivalent to {{{(# a,
b #)}}}. We would have to define a collection of such functions in the
Prelude (see Data.Tuple, for the (,,,,) functions). We'd have to do is to
make the parser understand {{{(#,,,#)}}}.
2) Currently GHC does not allow {{{f :: (# a, b #) -> ...}}}, but there's
no real reason why not; GHC could transform them away just before code
generation.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1509>
GHC <http://www.haskell.org/ghc/>
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