How to do something before object destruction in Dart?

Question

In Java we can do something like override finalize(), in C++ we can do something like ~Someclass(),

But How can I do it in dart, I read the doc in https://www.dartlang.org/ but did not find answers.

If you are using angular-dart, DetachAware can help you. Implement your component from DetachAware and override detach method. — ashokd, Aug 21 '15 at 18:18

score 33 · Answer 1 · edited May 23 '17 at 11:53

33

This is not supported. There is nothing like a destructor in Dart.
JS garbage collector doesn't provide a way to implement this. See also https://stackoverflow.com/a/20490161/217408 and https://github.com/dart-lang/sdk/issues/3691

edited May 23 '17 at 11:53

Community

answered Jul 27 '15 at 05:50

score 5 · Answer 2 · answered Aug 16 '22 at 00:12

5

Dart now provides finalizers, as of Dart 2.17.

answered Aug 16 '22 at 00:12

Randal Schwartz

2 Answers2