2dbd981d38
1490a90bc1 Track guards using NullabilityNode rather than ConstraintVariable. 7f224d9fbe Track parameters that might need to be made optional/required using NullabilityNode. 6c063512ae Validate that nullability is propagated from optional/required named parameters. ed7f524afb Refactor more of the migration tool to use NullabilityNode rather than ConstraintVariable. 78c55022b1 [VM] - Fix for issue 36484 exposed when ExperimentalFlag.constantUpdate2018 is turned on in CFE a7175938c3 Remove use of package_root in analyzer/test/error_test 45a5349175 Track constant field initializers for field analysis. 91c042c066 Implement isCovariant for fields.
Flutter Engine
Flutter is a new way to build high-performance, cross-platform mobile apps. Flutter is optimized for today's, and tomorrow's, mobile devices. We are focused on low-latency input and high frame rates on Android and iOS.
The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.
If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at flutter.io. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.io.
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