On Nov 2, 2007, at 11:51 , Jonathan Cast wrote:
I will grant that hiding *World / RealWorld# inside IO is cleaner
from a practical standpoint, though. Just not from a semantic one.
On the contrary. GHC's IO newtype isn't an implementation of IO in
Haskell at all. It's an implementation in a language that has a
Haskell-compatible subset, but that also has semantically bad
constructs
Differing viewpoints, I guess; from my angle, Clean's "uniqueness
constraint" looks like a hack hidden in the compiler.
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
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