using DMD git HEAD

struct A
{
    B* b;

    ~this()
    {
        doStuff();
    }
}

struct B
{
    ~this()
    {
        doOtherStuff();
    }
}

example usage:

void main()
{
    A a;
    a.b = new B;
}


Requirements:

doOtherStuff must be called before doStuff.
doOtherStuff and doStuff must be called exactly once each.

Possible solution:

insert a b.__dtor(); before doStuff. Unfortunately b.__dtor() is called again on exit (by the GC I assume). doOtherStuff can be guarded with a flag to prevent this.

b.destroy() doesn't seem to actually call B.__dtor().


Is there a "right" way to do this?

On Wednesday, 18 February 2015 at 15:22:47 UTC, John Colvin wrote:
> doOtherStuff must be called before doStuff.

That'll never happen; B is still valid until after A is destroyed, if they weren't on the heap you'd see doStuff goes first too.

You should probably make a method to clean B up yourself, I wouldn't even use the destructor, just a regular like "dispose" method that you can guard with a flag. I think that's the best way to do it.