How are you able to copy a struct in zig?
#How are you able to copy a struct in zig?
livid tulip
limber rock
Use parseFromSliceLeaky to get the value directly, not wrapped in a Parsed
er, wait
That would be, well, leaky.. I guess instead why not just return parsed (and not deinit it inside of fetch)?
Well, that could result in more memory usage than desired... so if you just wanna copy the value, create a new Response with the allocator, and copy it in to it
Actually I've confused myself now...
Right, okay, yeah, resp.content is a slice, which is a pointer and a length -- parsed.value is copied when you return it, but the pointer remains a pointer to the memory from the arena inside parsed, which is freed when it's deinit-ed
The easiest solution is returning the full parsed and letting the caller deinit it
Which will entail a little more memory overhead than copying just the exact memory you need, but will be faster since it doesn't require a copy
If you want to copy, you'd use allocator.dupe on the slice(s) you need to copy
I don't think that the std has a generic deep copy function in it rn, so you'd have to just manually do it for the relevant fields
e.g. if content is your only slice field:
var res: Response = parsed.value;
res.content = allocator.dupe(u8, res.content);
return res;
(and then the caller is responsible for calling allocator.free(res.content) after finishing with it)