dot_cast 1.1.0

This package provides the user with extension methods for casting objects allowing you to write less and cleaner code.

This package allows you to cast your Objects in a more convenient way.

Features

This package contains functions and extensions for casting objects.

Functions

The functions are just another way of casting objects which might make it a bit more readable and usable.

With cast you can force a cast. It will throw an error if the cast fails.

Car car = cast<Car>(vehicle); // vehicle as Car

If you are not sure if the cast will be valid, you can use tryCast to receive a null when the cast fails.

Car? car = tryCast<Car>(vehicle); // vehicle is Car ? vehicle as Car : null

Extensions

There are two extensions that allow for a more easy way to cast objects and continue using them.

With .cast you can force a cast. You should only do this if you are 100% certain that the cast is valid, or else an error is thrown.

Car car = vehicle.cast<Car>(); // vehicle as Car

If you are not 100% sure .cast is going to work, you can use .tryCast. .tryCast will return null if the cast fails.

Car? car = vehicle.tryCast<Car>(); // vehicle is Car ? vehicle as Car : null

These two extensions make it easier to use your casted objects.

For example when you only need to show items when your state has been loaded, you simply do the following:

final items = state.tryCast<Loaded>()?.items;