• Nathan S. (10/12) Jul 10 2019 I want to be able to do things like:
• Basile B. (21/33) Jul 10 2019 Hi, not tested extensively but :

Nathan S. <no.public.email example.com> writes:

I want to be able to do things like:

---
bool isSame(Object a, Object b) { return a is b; }

interface SomeInterface { int whatever(); }

bool failsToCompile(SomeInterface a, SomeInterface b) { return 
isSame(a, b); }
---

Error: function isSame(Object a, Object b) is not callable using 
argument types (SomeInterface, SomeInterface)

Is there a way to declare an interface as explicitly not a COM 
interface or a C++ interface? Having to add "cast(Object)" 
everywhere is annoying.

Basile B. <b2.temp gmx.com> writes:

On Wednesday, 10 July 2019 at 08:03:30 UTC, Nathan S. wrote:
 I want to be able to do things like:

 ---
 bool isSame(Object a, Object b) { return a is b; }

 interface SomeInterface { int whatever(); }

 bool failsToCompile(SomeInterface a, SomeInterface b) { return 
 isSame(a, b); }
 ---

Error: function isSame(Object a, Object b) is not callable 
using argument types (SomeInterface, SomeInterface)

 Is there a way to declare an interface as explicitly not a COM 
 interface or a C++ interface? Having to add "cast(Object)" 
 everywhere is annoying.

Hi, not tested extensively but :

---
interface Foo
{
     final Object asObject()
     {
         return cast(Object) this;
     }

     alias asObject this;
}

class Bar : Foo
{

}

void main(string[] args)
{
     Foo foo = new Bar;
     Object o = foo;
     writeln(o);
}
---