[Issue 19032] Alias this does not interact with inheritance.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19032

Simen Kjaeraas <simen.kjaras at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |simen.kjaras at gmail.com

--- Comment #1 from Simen Kjaeraas <simen.kjaras at gmail.com> ---
Simplified:

class A {
    int n;
    alias n this;
}

class B : A {}

unittest {
    // Works when accessed through an A:
    static assert(__traits(compiles, cast(int)new A()));
    static assert(__traits(compiles, cast(int)cast(A)new B()));

    // Fails when accessed through a B:
    static assert(!__traits(compiles, cast(int)new B()));
}

OP also requires multiple alias this, which the documentation states is
currently unimplemented (issue 6083).

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