moving Builder logic into Particulator::__init__() and removing builder.py (+ fix in to_host() logic for FakeThrustRTC)

[KmazuR-afk]

No description provided.

[KmazuR-afk]

I suggest making request_attribute() a private helper method for now and replacing external calls with a requested_attributes tuple passed to build() or we could consider removing self.req_attr_names entirely and constructing the requested attribute names locally inside build(). @slayoo ?

[KmazuR-afk]

Another question is - what to do with register() methods in another classes e.g. Displacement?
In Displacement.register(), we currently have:

def register(self, builder):
    builder.request_attribute("relative fall velocity")
    self.particulator = builder.particulator

What should be the approach here - moving it to build method whenever class Displacement is used?

[slayoo]

thanks!

@KmazuR-afk, a viable recaftor could likely involve:

• creating a Particulator::__init__() which combines (almost as-is) the logic of Builder::__init__() and Builder::build()
• then, the register() calls are handled as they were
• the requested_attributes tuple as argument seems a good plan (and making a private __request_attribute())

[KmazuR-afk]

I moved most, if not all, of the Builder setup logic into Particulator. With this change, Particulator.__init__() now performs the full initialization previously split between Builder.__init__() and Builder.build().

I am not entirely sure whether this is the desired final architecture, but in this form builder.py could likely be removed entirely, or kept only as a temporary compatibility wrapper.

Additionally, I made the setup-related arguments in Particulator.__init__() keyword-only by adding * to the signature.

[slayoo]

🚀 !
removing builder.py is exactly what we're only waiting for with the v3 release! :)
Thanks!

[KmazuR-afk]

@slayoo as for now I am sticiking to refactors of examples in alphabetical order and whatever comes up during working on them. In commits I will add the names of last folder I finished the commit on.