Multiple-generic abstraction

multiple-generic-abstraction.md

Dart Generic Type OOP

Multiple generic abstraction

This code structure promotes flexibility and code reusability. By using abstract classes and generics, you can create an executor for different types of calculations while ensuring type safety and consistency.

Declaration

import 'dart:async';

abstract class A<U extends Param, T> {
  A();
  FutureOr<T> calculate(U a);
}

abstract class B<int> extends A<ParamImpl, int> {
  B();
  @override
  int calculate(ParamImpl b);
}

abstract class Param {}

Implementation

class ParamImpl extends Param{}

class BImpl implements B {
  @override
  int calculate(ParamImpl b){return 0;}
}