okay 0.5.0

Typesafe error-handling for dart . An implementation of rust's `Result` type in dart.

okay

Typesafe, intuitive error-handling for dart . An implementation of rust's Result type in dart.

---

Note: This package was heavily inspired by rustlang's result type.

Installation

In the dependencies: section of your pubspec.yaml, add the following line:

dependencies:
  okay: <latest_version>

Usage

import 'package:okay/okay.dart';

class FallibleOpSuccess {}
class FallibleOpFailure {}

Result<FallibleOpSuccess, FallibleOpFailure> fallibleOp() {
  if (true) {
    return ok(FallibleOpSuccess());
  } else {
    return err(FallibleOpFailure());
  }
}

final result = fallibleOp();

result.inspect((value) {
    print('Success with value: $value');
  }).inspectErr((error) {
    print('Failure with error: $error');
  });
}