dart-sdk/pkg/dart_internal
Nicholas Shahan 4f71abcd71 [dart_internal] Bump SDK constraint upper-bound to <2.5.0
Issue: #37324
Change-Id: Ibea63bb775c83484523fb8d6caeda918df25e849
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106949
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
2019-06-21 00:39:25 +00:00
..
lib Disable analyzer warning on special 'dart:_internal' import. 2017-12-21 23:21:04 +00:00
analysis_options.yaml
LICENSE
pubspec.yaml [dart_internal] Bump SDK constraint upper-bound to <2.5.0 2019-06-21 00:39:25 +00:00
README.md Make warning more warning-y. 2018-03-02 02:04:44 +00:00

☠☠ Warning: This package is experimental and may be removed in a future version of Dart. ☠☠

This package is not intended for wide use. It provides a temporary API to solve the problem: "Given an object some generic type A, how do I construct an instance of generic type B with the same type argument(s)?"

This is necessary in a few rare places in order to migrate existing code to Dart 2's stronger type system. Eventually, the hope is to have direct language support for solving this problem but we don't have time to get that into 2.0, so this package is provided as a temporary workaround.

We will very likely remove support for this in a later version of Dart. Please avoid using this if you can. If you feel you do need to use it, please reach out to @munificent or @leafpetersen and let us know.