Observable()

Declaration

@attached(member, names: named(_$observationRegistrar), named(access), named(withMutation), named(shouldNotifyObservers)) @attached(memberAttribute) @attached(extension, conformances: Observable) macro Observable()

Mentioned in

• Applying Macros

Overview

This macro adds observation support to a custom type and conforms the type to the Observable protocol. For example, the following code applies the Observable macro to the type Car making it observable:

@Observable 
class Car {
   var name: String = ""
   var needsRepairs: Bool = false

   init(name: String, needsRepairs: Bool = false) {
       self.name = name
       self.needsRepairs = needsRepairs
   }
}

See Also

Observable conformance

• Observable