extension_type_unions 1.0.1 
extension_type_unions: ^1.0.1 copied to clipboard
Simple union types. The package provides the extension types `Union2 ... Union9`, modeling a simple kind of union types. The union of `int` and `String` can be specified as `Union2<int, String>`. An e [...]
Use this package as a library
Depend on it
Run this command:
With Dart:
$ dart pub add extension_type_unionsThis will add a line like this to your package's pubspec.yaml (and run an implicit dart pub get):
dependencies:
extension_type_unions: ^1.0.1Alternatively, your editor might support dart pub get. Check the docs for your editor to learn more.
Import it
Now in your Dart code, you can use:
import 'package:extension_type_unions/extension_type_unions.dart';Metadata
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Metadata
Simple union types. The package provides the extension types `Union2 ... Union9`, modeling a simple kind of union types. The union of `int` and `String` can be specified as `Union2<int, String>`. An expression with a union type type can be obtained by calling a constructor like `Union2<int, String>.in1(42)` or `Union2<int, String>.in2('foo')`. A more concise form uses an extension getter, e.g., `42.u21`, `'foo'.u22` (`u2` means `Union2`, and the last digit specifies the chosen type, e.g., `1` for `int`).
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