In ceylon, how do I get Class object from a class?

Question

I have a method that takes a java.lang.Class object as a parameter. How do I get that from a Ceylon class?

That is, the equivalent of SomeClass.class in Java.

Answer 1

For SomeClass.class, use a meta literal: `SomeClass` for a closed model, `class SomeClass` for the open declaration.

For someInstance.class, you can use the type function from ceylon.language.meta.

import ceylon.language.meta { type }

class C() {}
class D() extends C() {}

shared void run() {
    C c = D();
    print(type(c));
}

Try it!

(type returns a closed model, i. e. with type arguments applied; you can get the open declaration with .declaration.)