On 2015/02/25 12:34:18, rossberg wrote:
On 2015/02/25 11:21:18, Dmitry Lomov (chromium) wrote:
> 1. Writing experimental prototype CLs and seeking feedback is fine and
greatly
> encouraged as long as those CLs are clearly marked as such.
> 2. I am not convinced that now is the right time to land exponentiation
operator
> in V8:
> - we are in time of great churn, what with all the ES6 features and
TurboFan
> trying to replace Crankshaft
> - you see for yourself that this Cl ends up being pretty invasive
and a
> moving part on top of a bunch of other moving parts
> - it is not that we see a high demand for exponentiation operator
being
> implemented in V8 at this point
> - once this lands, we need to support exp operator throughout any
and all
> changes and refactorings we need to do. To really get exp operator
support
on
> par with other arithmetic operators we have, we would need to implement
> BinaryOpIC support for it and so on and so forth - I do not think we
have
> bandwidth at this point to do this.
>
> So my recommendation would be to not land this at this point of time.
I agree with what Dmitry said. A new primitive operator is a rather
intrusive
feature, and we have more than enough loose ends to deal with at the
moment. I
prefer to focus on our current priorities (ES6, Turbofan, strong mode),
and
avoid broadening the surface of the language & system further before we
are
through with all that.
That said, we of course welcome experimentation. To address Michael's
concerns,
it would help if the description of experimental CLs clearly stated the
intention (in particular, when there is no intent to land; an explicit
heads-up
reply is appreciated once such a CL is emerging from experimental
to "real").
So I'll just do the desugar-to-runtime-call thing in parsing and get rid of
all
the compiler changes. it's a pretty trivial, this just makes the parser and
AST
a bit weirder than they should be. There's no real requirement that this
touches
the compiler
https://codereview.chromium.org/953563002/
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