[Scons-dev] Variable Substitution

[Bill Deegan]

Jason,

You mentioned:

Variable Substitution:
> I abuse this in Parts to share data in a lazy fashion between components.
> It has been a sore point for me, given reason stated below. We have done
> some work to address the items by reusing states better. I can say there
> are some issues with the current code that causes memory bloat and wasted
> time. I don’t want to dwell on this, but will say that this is the second
> biggest item in my mind that would have a big impact to overall time to the
> user. I know I want to change the load logic in Parts to avoid using the
> substitution engine as much as possible.
>


Can you expand upon how you abuse variable substitution?
Is it about storing information for later use that will never really be
expanded by Subst()?
Or something else?

Thanks,
Bill
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