Am 30.01.2011 03:51, schrieb Bruce Gray:
Perl 5?
Obviously not! If it *were* acceptable, we would not have moved all
that Perl 5 code into PIR, now would we?
agreed.
Perl 6?
No, for political reasons; Having chunks of Parrot written in Perl 6
will be disagreeable for Perl 6's "competitors". Isn't this why PaFo
is separate from the Perl Foundation?
There are also technical reasons: we haven't explored how well Perl 6
can be optimized, so it doesn't seem like a very good option to offer as
"the" HLL to write parrot components in. (Which is why NQP-rx only
support a subset of Perl 6 that fits very well onto Parrot).
C?
Acceptable, but only where PASM/PIR are problematic. For example, IMCC
is being replaced, having been a long-term thorn due to its C-ness.
It kinda feels wrong to write a virtual machine, and then fall back to
the most basic HLL, and do the memory management etc. all manually again.
PASM?
Definitely acceptable.
(but rarely optimal or even advisable for anything not tiny)
I wouldn't want to write large portions of code in PASM.
PIR?
Definitely acceptable, and usually preferred.
(but sometimes sub-optimal; the few large PIR programs make us wish
for something higher level)
There would be some benefit, though, if nothing was above PASM/PIR level.
No real bootstrapping concerns!
(Whoops, not true with IMCC's replacement)
I wouldn't want to write large portions of code in PIR. goto, I hear
your call...
And as far as I can tell, PIR wasn't desgined to be written by humans.
Even if we replace IMCC by something that can be easily modified, I
don't think it's a promising prospect to morph it into a HLL that's
pleasant to write.
NQP?
wfm.
[Other, *future* possibilities]
QJS? (PIR++)?
Since IMCC is the thing that has been holding back the evolution of
PIR, and IMCC will soon be replaced by something easier to modify, we
could see improvements to PIR that would alleviate some of the need
for a NQP-level language. However, not all past limits to PIR's
evolution have been IMCC's fault. PIR has been intended as fairly
low-level in the past, with just enough sugar over PASM to keep
everyone from choking. To enhance PIR to anywhere close to NQP's level
would be a major change in philosophy.
see above.
Not-Quite-NQP?
Something similar to NQP could be created, to forever be oriented to
Parrot's own needs. Particle mentioned forking the current NQP.
wfm.
My take on the original discussion is less that NQP is walking away from
Parrot,
and more that NQP is walking in a direction that it dearly hopes Parrot
will also soon follow.
Exactly.
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