More and more improvements and changes on Google Dart.
We just published a draft of spec changes for library and source.
* #library changes to library
* #source changes to part
* source’d files have a ‘part of’
* library names are now useful
* you can re-export names from imported libraries
* you can restrict the set of names imported by a library using show and hide
Please give it a read as this attempts to answer some of the feedback we’ve received from using #library. Let us know if you have questions!