Good News: Almost all druntime supported on arsd webassembly

[Adam D Ruppe]

On Friday, 6 January 2023 at 22:14:23 UTC, Ferhat Kurtulmuş wrote:
> One question. Does GC work with Adam's druntime for wasm?

I haven't actually written one yet, so it leaks if you don't pay 
attention yourself. But I have a plan that should work: you do 
the setTimeout(collect, 0) so it runs when the event loop is 
idle. Then the wasm stack is empty so you can scan pure memory.

> IMHO, D's GC need a second thread

This isn't true, it never needs a second thread, even on normal 
desktop.

The problem with GC on wasm is the webasm stack is opaque. You 
can have the compiler output a shadow stack or my plan of 
scanning when it is empty. Either should work but I haven't had 
time to implement anything.