On 2008 Nov 12, at 5:38, Alberto G. Corona wrote:
Is there any abstract container that permits the addition of new
types of data? I know how to simulate the extension of Algebraic
datatypes, but this does not permit the addition of data with new
types in the same container and recover them in a type-safe way.
Did I reinvent the Weel? I found something, that permits this for
any Typeable datatype. For example
I think you want http://www.haskell.org/ghc/docs/latest/html/libraries/base/Data-Dynamic.html
.
--
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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