Upgrading from 0.7 to 0.8

1. Change use ruru::traits::Object to use ruru::Object.

2. Some general methods were moved to Object trait, so import ruru::Object when using:

• AnyObject::to()
• AnyObject::ty()
• Class::define()
• Class::define_method()
• Class::define_singleton_method()

3. Object::to() (AnyObject::to() in 0.7.x) was marked as unsafe.

object.to::<Array>();

becomes

unsafe { object.to::<Array>() };

3. methods! macro:

• If you are sure that arguments that are received from Ruby always have correct types, change methods! macro to unsafe_methods!. No more changes required.

• Otherwise to safely convert objects, method arguments will have Result<T: Object, Error> type.

  For example if your method signature looks like

  fn some_method(array: Array) -> NilClass {}

  array variable will have type array: Result<Array, Error>

  See documentation for methods! for more examples.

4. Class::new() receives optional superclass, so add None as second argument for compatibility

   Class::new("SomeClass", None);

5. Hash::each was changed to yield keys and values only as AnyObjects.

   You should remove types from closure arguments and use safe/unsafe conversions to convert AnyObjects to the type which is needed.