languages/dart-sdk
languages/dart-sdk
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dart-sdk/pkg/dart_internal/README.md
Bob Nystrom c67cf2090a Make warning more warning-y. 
Change-Id: If5ecb0f3a8ac94acd0f3fe13e315df47029107b6
Reviewed-on: https://dart-review.googlesource.com/44680
Reviewed-by: Nate Bosch <nbosch@google.com>
2018-03-02 02:04:44 +00:00

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☠☠ 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.