How to use typedef inside a class with Generics?

[tolotrasamuel]

How to use typedef with generics ?

How to use typedef inside a class ?

I have the following class.

class Bar<T> {
  void bar() {
    print(T);
  }
}

class Foo<T> {
  Bar<T> merge(Bar<T> a, Bar<T> b, Bar<T> c) {
    a.bar();
    b.bar();
    return c;
  }
}

To avoid repeating Bar<T> I want to use typedef

class Foo<T> {

  typedef Baz = Bar<T>;
  
  Baz merge(Baz a, Baz b, Baz c) {
    a.bar();
    b.bar();
    return c;
  }
}

But this is obviously not working with the current Dart. Is it supported ? I know I create an alias of the Bar to a shorter string but this does not remove the generic, the problem is in reality, the generic has several nested class like Foo<Bar<Baz<Foz<Boz<T>>>>

[mateusfccp]

How to use typedef with generics ?

typedef Foo<T> = Bar<T>;

How to use typedef inside a class ?

That's not possible, by definition.

A type alias is a top-level declaration, which means it can only appear [sic] in the top-level scope.

There's already an issue for this case: #67 (see also #2952), so I think this can be closed.