One important bit tho: The (static) methods should be somewhere close the
classes they relate to, otherwise we just go back to runtime-*.cc.

On Fri, Sep 25, 2015 at 1:37 PM, Benedikt Meurer <bmeu...@chromium.org>
wrote:

> AFAIK everyone is doing (1) currently, and so at least for now, which is
> kinda what we agreed on some time ago. I don't see why we have to change
> that now. I think (3) is essentially (2) with a different directory/base
> filename, and many people thought that (2) was bad, which AFAIR is why we
> are at (1) currently. I'm fine with moving objects.cc/.h somewhere else
> and/or split them up, but I think we should delay that for now. This will
> just be distracting for the work that has to happen in that area IMHO.
>
> On Fri, Sep 25, 2015 at 12:39 PM, 'Andreas Rossberg' via v8-dev <
> v8-dev@googlegroups.com> wrote:
>
>> Some quick thoughts.
>>
>> Option (4) is a non-starter. Section numbers are not stable across spec
>> releases.
>>
>> Option (3) doesn't sound bad, although it's not quite clear what the
>> criteria for putting something into objects vs runtime vs the new dir would
>> be. If we introduced a third category, not only stuff from runtime but also
>> significant parts of the logic in objects.cc should naturally move there.
>> Sounds like a lot of work with unclear benefit.
>>
>> Option (1) seems like the most adequate for now.
>>
>> IMHO, thinking about a new directory structure is putting the cart before
>> the horse at this point. It only is interesting as part of a broader
>> strategy for splitting up objects.h/cc. I don't think we currently have any
>> plausible plan for that.
>>
>> /Andreas
>>
>>
>> On 25 September 2015 at 11:58, Jakob Kummerow <jkumme...@chromium.org>
>> wrote:
>>
>>> As we have discussed at various occasions recently, we generally want to
>>> move in the direction of having C++ implementations of spec-defined
>>> behavior. That raises the question of where this code should live.
>>>
>>> As an example of the kind of code we're talking about, consider
>>> https://codereview.chromium.org/1368753003/diff/1/src/runtime/runtime-object.cc
>>>  *(don't
>>> panic, runtime-object.cc is not the intended final place for this code to
>>> live -- the very purpose of this thread is to figure out a better place.)*,
>>> but there are also other, existing examples (like various ToXXX conversion
>>> functions, a bunch of things spread across runtime-*.cc, the JS
>>> implementations littered with runtime calls that we want to replace, ...).
>>>
>>> Options I can think of:
>>>
>>> (1) Put everything into objects.cc.
>>> + Makes a lot of sense for things like DefineOwnProperty_Array, which
>>> could just be a static function JSArray::DefineOwnProperty.
>>> + Is an easy approach in the sense of being consistent with existing
>>> code structure (is that a good thing?)
>>> − It's not clear how this approach maps to non-HeapObjects like the new
>>> class PropertyDescriptor
>>> − I like having some distinction between high-level spec-defined
>>> operations like "DefineOwnProperty" and low-level V8 implementation details
>>> like MigrateToMap -- installing both on the same class JSObject feels like
>>> a recipe for confusion.
>>> − objects.h/.cc are too big as it is, IMHO (of course this point is moot
>>> if/when we split it up)
>>>
>>> (2) Put everything in runtime-*.cc
>>> + Works, and there's plenty of precedent.
>>> − AFAIK we have pretty wide consensus that that's not what we want.
>>> − A concrete technical drawback is a lack of callability from other
>>> places.
>>>
>>> (3) Create a new directory, put everything there.
>>> + All reference implementations would be in one place
>>> + Can use individual files for further grouping if desired. Is that
>>> desired? What file structure would be good?
>>> + Personally I think we need more separation of things anyway, this is a
>>> step in that direction
>>> • next question: how to call that directory? src/spec/? src/es6/?
>>> /src/blue/? (blue sheds are nice)
>>> − For some things it might be unclear where to put them; our
>>> "abstractions" are (necessarily?) leaky
>>> − New thing to get used to; inconsistency while it's a work in progress
>>>
>>> (4) Organize by spec chapter, e.g. put OrdinaryDefineOwnProperty into
>>> src/es2015/ch9/9.1.cc or somesuch
>>> + If applied consistently, makes it easy to find things that are already
>>> implemented, which avoids duplication
>>> − the resulting grouping may or may not make sense (it's up to the spec)
>>> − ugly
>>>
>>> Personally I'm leaning towards some variant of (3), but I'm open to
>>> being convinced otherwise. (1) sounds like a temporary solution to me; why
>>> not go for a longer-term plan right away?
>>>
>>> Thoughts? Other ideas? Indifference?
>>>
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>>
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