On 10 April 2006 22:41, Andy Gill wrote:
> Why can't we just steal a bit in the (GHC)
> info table,
> rather than mess with LSB of pointers, or have two info tables?
Because you need one bit per constructor *instance*. eg. there are two
variants of Just: the normal one, and the deepSeq'd one. So I either
put the bit in the constructor instance itself, or I need one info table
for each variant, or I need to distinguish based on the address of the
closure.
Cheers,
Simon
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