Re: How check if destructor has been called?

[Ben Jones via Digitalmars-d-learn]

On Tuesday, 13 September 2022 at 14:06:42 UTC, Injeckt wrote:
Hi, I'm trying to check if destructor has been called, but when 
I'm deleting class object I didn't get any calls from 
destructor.

myclass.d

    ~this() {
        this.log("\nDestructor\n");
        this._free_trash();
    }


main.d

    try {
        server.server_init(server);
    } catch (Exception e) {
        server.log(e.msg);
        server = null;
    }

Classes are allocated on the GC heap, so even though you're 
setting the reference to null, it's not being collected at that 
point.  You can use `destroy` to make sure the destructor is 
called (see here: https://dlang.org/spec/class.html#destructors)

Or you could make your instance `scope` and then it basically 
follows the same lifetime rules as `struct`s.