But think about if enforced immutability is really what you
want.
You don't need to mark the fields immutable to be able to
construct immutable Xs. A `pure` constructor is handy, as it can
construct both mutable and immutable objects.
class X
{
private int x;
this(int x) pure { this.x = x; }
}
void main()
{
auto m = new X(5);
auto i = new immutable X(5);
}
Note also that (x1 != x2) even though they should be equal (I
think...)
By default, equality of objects is defined as identity. That is,
an Object is equal only to itself. Override opEquals to change
that.
I know I can make a class immutable, but the problem is I want
to constrain a template parameter to only immutable types,
and I want to use class types.
-Eric
