On Tuesday, 3 September 2019 at 20:03:37 UTC, Martin DeMello
wrote:
On Sunday, 1 September 2019 at 11:19:11 UTC, DanielG wrote:
Do you know whether SWIG's D generator is even being
maintained?
I've searched for it on the forums in the past and got the
impression that it's outdated.
I didn't realise that :( It was included in the current release
of swig, so I figured it was maintained.
It's pretty sad if it's not, because trying to access C++
libraries directly from D has some limitations (most notably
not being able to create new C++ objects from D) and swig would
have let things just work.
I think DPP can call constructors. YMMV.
We are working on a little project I started as another step in
the eternal personal hackathon.
Libclang isn't my cup of tea. It's almost very cool but they put
in whatever the guy needed and so it's inconsistent but your
alternative is code that breaks things between breakfast and
teatime.
Cling is used at CERN and I found libcling more pleasant. I only
wrapped the cppyy fork but that actually allows you to reflect at
runtime on a lot. From our DSL at work I can include a header,
instantiate a templated type, create an instance of the class and
call a method on it. Can, but it's not what I would call fun.
I didn't yet get time to wrap the rest of the interpreter.
But the idea is to make a tool for wrapping c++ via simpler
extern (C++). If one isn't quite sure upfront what will work and
not then it's much more pragmatic. I can't see how it won't work
but we will know in a week or two.
My first version is here.
https://github.com/kaleidicassociates/cpp-reflect-d
There is another route people don't think of. Calypso can
introspect on C++ too. You might not want to use it in
production but you don't need to. Either I guess you could use
it to generate wrappers or you can use it to replace a chunk of
cpp code.
The surface area of a method must be larger than thr surface area
of a chunk. Well chosen then it's easy to write glue code semi
automatically. But it's nice to be able to replace a method at a
time and have working code at every step.
You don't need to trust Calypso in production to be able to use
it for this purpose.
