struct S
{
    @disable this();
    this(int x) { writeln("ctor ", x); }

    void opAssign(S s) {
        writeln("assign");
    }

    ~this() { writeln("dtor"); }
}

class A
{
    S s;
    this() {
        s = S(1); // opAssign/dtor is called instead of constructor??
    }
}

S s; // error. why??
static this() {
    s = S(1);
}

void main() {
    auto a = new A;
}