[Vm-dev] [Cog] Proposal: get rid of checks if files should be regenerated

[Eliot Miranda]

On Wed, Jun 29, 2011 at 10:27 AM, Igor Stasenko <siguctua at gmail.com> wrote:

>
> Hello,
>
> just a proposal.
> A full VMMaker sources generation under cog vm takes less than 1
> minute, in fact even less:
>
> [ CogMacOSConfig generateWithSources ] timeToRun 24919
>

You miss the point.  By not regenerating e.g. interp.h one avoids
recompiling every file in the VM when one does a C compilation.  If every
time one regenerates the CoInterpreter one also regenerates interp.h then
all the files in the VM will be recompiled even though only CoInterpreter
has changed and needs recompiling.  I build three VMs (production, assert,
debug) for each of three platforms (Mac, WIndows, linux).  So avoiding
regenerating unchanged header files turns out to be rater valuable.

Make sense now?


>
> (so, in fact its 25 seconds)
> this is including all plugins and cmake files!
>
> which makes me thinking that we could simplify code generation a lot
> by removing unnecessary checks whether file(s) should be re-generated
> or not.
> Because it just adds a mess and unnecessary complexity into already
> complex code.
> What you think?
>
> --
> Best regards,
> Igor Stasenko AKA sig.
>



-- 
best,
Eliot
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