I need to pass around some data between Nim and C, and this
`someCAllocFunction` returns a void pointer. I tried casting it to a `ptr
MyType` and setting its value using `point[] = MyType()` (in reality I'm using
an object with some fields, and the object is initialized in a separate
function). But then, in a callback I passed to C, I'm trying to access my data
again, but a `SIGSEGV` is raised.
instance of TestAutowrenType
Traceback (most recent call last)
autowren.nim(143) autowren
autowren.nim(136) w_data=
autowren.nim(130) data=
gc.nim(289) unsureAsgnRef
gc.nim(185) decRef
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Run
Here's the source code of my program:
[https://github.com/liquid600pgm/rapid/blob/master/src/scripting/autowren.nim](https://github.com/liquid600pgm/rapid/blob/master/src/scripting/autowren.nim)
I understood this as the GC removing my object while it's passed around in C
code, and that's why I wanted to mark it as referenced.
