How can I use class and wasm?

Adam D. Ruppe destructionator at
Fri Oct 16 03:42:22 UTC 2020

On Friday, 16 October 2020 at 03:04:25 UTC, Jack wrote:
> How can I allocate memory for this class?

It is possible but not easy without druntime.

If you are using -betterC, you can use extern(C++) classes with 
extern(D) members. The compiler will let you declare that. But 
then you need to allocate it. `__traits(classInstanceSize, 
Whatever)` will tell you the size to malloc, but you also need to 
copy an initializer over before you call the constructor.

I have a technique here that works on dmd...

but ldc is more strict about the type definition and I don't know 
the magic it expects there... like it should be doable but idk 
how so this might not be of much use.

Personally, I prefer to just not use betterC and make my own mini 

in particular

But that's also not easy, lots of unfinished cases in my thing, 
but I did manage to make it work... for my specific case.

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