Roll src/third_party/dart 7b9ab9f353..714a082a5d (7 commits)

714a082a5d Minimal integration of summary2 into AnalysisDriver.
dd3530450d make "late" and "required" builtin keywords
836efd6520 Add a language_2 test for having an invalid type in an on clause
81e554ea43 parse "required" modifier for NNBD
1eab04ed3f Reland "[VM-debugger] resolve column breakpoint tokenposition into a single value"
ec27b09e68 [vm, service] Fix deferral of service extension invocation to not be mislead by other OOB messages.
1e30bb90dc [vm/dbc] Support unboxed Int64 on DBC
2 files changed
tree: 1e15bb1b3fb1ed350d44637b7fc7842d38431141
  1. .cirrus.yml
  2. .clang-format
  3. .gitattributes
  4. .gitignore
  8. DEPS
  11. analysis_options.yaml
  12. assets/
  13. benchmarking/
  14. build/
  15. ci/
  16. common/
  17. docs/
  18. flow/
  19. flutter_kernel_transformers/
  20. fml/
  21. frontend_server/
  22. lib/
  23. runtime/
  24. shell/
  25. sky/
  26. testing/
  27. third_party/
  28. tools/
  29. vulkan/
  30. web_sdk/

Flutter Engine

Build Status

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 For specific information about Flutter's APIs, consider our API reference which can be found at the

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