A simple object reference system in dart.
Features
Normally it is impossible in languages like dart to pass an Object like an int to a method and change the value of the passed parameter, because all Objects, except for collections, are passed by value.
With this package you can create a method that accepts a reference and modify the value of the reference in the method.
import 'package:object_reference/object_reference.dart';
void main() {
final ref = 0.ref<int>();
// Prints 0, because we initialized it with this value.
print(ref.value);
modifyInt(ref);
// Prints 10, because modifyInt sets the value of ref to 10.
print(ref.value);
}
void modifyInt(MutableRef<int> i) {
i.value = 10;
}
Getting started
Just import import 'package:object_reference/object_reference.dart';
in the dart file in which you want to use references and you are good to go.
Usage
You can use the constructors of the various reference types to create a reference of a specific value, or you can just call the .ref()
, or .constRef()
method on any Object.