Facing problems with Class Properties

[Jesse Phillips]

d coder Wrote:

> The issue is that when I try to compile the program, I get the error
> bug.d(10): Error: no property 'length' for type 'test.Bar'
> 
> I am explicitly checking the field type, and I am making sure that the field
> is an array type, before looking for its length. So I am not sure why this
> error appears. Please guide me.
> 
> Regards
> Cherry
> 
> import std.stdio;
> class BaseClass { }
> 
> class Bar: BaseClass { }
> 
> class Foo: BaseClass {
>   this() {
>     foreach(i, f; this.tupleof) {
>       if (is (typeof(f) : BaseClass[])) {
> for (size_t j = 0; j < f.length; ++j) {
>   f[j] = new typeof(f[j]) ();
> }
>       }
>       if (is(typeof(f) : BaseClass)) {
> f = new typeof(f) ();
>       }
>     }
>   }
>   Bar instance1;
>   Bar instance2;
>   Bar [10] instances;
> }
> 
> unittest {
>   Foo foo;
>   foo = new Foo;
> }

typeof() and is() are compile time constructs. Change your if statements to
static if.