Are structs saved in multi-thread delegate call?

[ag0aep6g via Digitalmars-d-learn]

On 23.04.2016 03:11, Ramon wrote:
> mmm, I figured the problem, but don't know how to solve it.
> my struct has a destructor which clears itself:
>
> struct json_value
> {
>    ~this() { .ValueClear(&data); }
> }

So the struct is destroyed at the end of DoDirSearch, despite there 
being a closure for it. Is the compiler doing the right thing here? 
Shouldn't the struct be considered alive until the closure gets garbage 
collected?