The rule for packages in this directory is that they can depend on
nothing but core Dart packages. They can't depend on dart:ui
, they
can't depend on any package:
, and they can't depend on anything
outside this directory.
Currently they do depend on dart:ui, but only for VoidCallback
and
hashValues
(and maybe one day hashList
and lerpDouble
), which
are all intended to be moved out of dart:ui
and into dart:core
.
See also:
-
https://github.com/dart-lang/sdk/issues/27791 (
VoidCallback
) -
https://github.com/dart-lang/sdk/issues/25217 (
hashValues
,hashList
, andlerpDouble
)