Franklin Yow
03101c0c2b
Changes to comply to internal review Closes https://github.com/dart-lang/sdk/pull/45568 https://github.com/dart-lang/sdk/pull/45568 TEST=CL contains no code changes. No-Try: true GitOrigin-RevId: 65796784e5fdfddaa021b5c55ad435b1db419700 Change-Id: I085a948f16dc9a0de128ed0bd456ae69adf6c124 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193888 Reviewed-by: Alexander Thomas <athom@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Alexander Thomas <athom@google.com>
☠☠ 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.