Re: clone method of Object

[grauzone]

grauzone wrote:
Qian Xu wrote:
Hi All,
is there any (easy) way to clone an object or any other classes?


--Qian

Simple answer: No.

Complicated answer: Yes, but you have to write it yourself.

Here's a nice starting point. You can use tupleof to get all members of 
a class. Note that this doesn't deal with superclasses, and members of 
superclasses are not copied:

T clone(T)(T old) {
    auto newobject = new T();
    foreach (int i, _; old.tupleof) {
        newobject.tupleof[i] = old.tupleof[i];
    }
    return newobject;
}

cloned = clone(yourobject);

I should add that members of subclasses are not copied either. E.g. if 
you have

class A {int a;}
class B : A {int b;}
class C : B {int c;}

B someobject;
clone(someobject);

the clone method will only copy member b, but not a or c.