Bug 4609 – clear() does not call base constructor if a class does not implement a default constructor

If a class only defines a constructor with one or more parameters and no default constructor, clear() does not call any constructor of the base classes nor does it throw an exception. class A { int n = -1; this() { n = 0; } } class B : A { // uncomment the following line and the unittest will pass // this(){} this(int b) { n = b; } } unittest { auto foo = new B(42); assert( foo.n == 42 ); clear(foo); assert( foo.n == 0 ); //fails }

`destroy` (new name of `clear`) shouldn't call constructors at all. It just destroys current object without creatuing a new valid one. Uncommenting constructor in derived class doesn't (and shouldn't) change anything. If it was, that was a bug (disappeared now) in `clear`.