Re: [Scheme-reports] Some comments after reading the r7rs public draft

[John Cowan <cowan@x>]

Aaron W. Hsu scripsit:

> I do not think we should use space to mention this issue, but
> implementations are obviously free to use threads to evaluate suitable
> delayed expressions if they follow the correct behavior, as Alex
> suggested.

Okay, I have backed out my changes.

> Thus, instead, I would prefer to clarify that a forced thunk should
> evaluate in a context equivalent to the dynamic context (including
> exception handlers and parameters) of the call to force which first
> requested the delayed expression's value.

This is more than a motherhood note: ticket #397 filed.

-- 
John Cowan  cowan@x  http://ccil.org/~cowan
In the sciences, we are now uniquely privileged to sit side by side
with the giants on whose shoulders we stand.
        --Gerald Holton

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