[Larceny-users] Commutativity

[William D Clinger]

david (disguised as "richard rush") wrote:
> Well I hope that since you're on the committee (well I thought you
> were last time I looked which was *ages* ago) that it will. I realize
> that R6RS is progressing into the 'real-world', but I think it would
> be a huge loss to lose *any* of compiler optimizations because of
> standardization language - and I say this even though I was bitten
> last night by current Twobit's reordering of LET-bindings where I was
> reading from a file. I deserved it :)

Yes, I am on the editors' committee, but I think this
is a lost cause.  It is very clear to me that some of
Twobit's optimizations will have to be turned off or
rewritten (in ways that will make them less effective)
in order to satisfy the mandates of R6RS.  Since many
of those mandates serve no useful purpose, some future
version of Larceny may default to a non-R6RS mode that
most programmers won't be able to distinguish from its
R6RS-compatible mode without using a stopwatch.

Will