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dart-sdk/pkg/frontend_server
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Alexander Markov c4c9dc5994 [vm] Enable new implementation of async/await in AOT mode 
The new implementation results in a much smaller overhead of
async/await on AOT snapshot size. The savings depend on
how often async/await is used.

On a large Flutter app (customer: money)
AOT snapshot size -13.7% (arm64), -12.86% (arm)

Another large Flutter app
AOT snapshot size -8.69% (arm64).

Part 1 (kernel): https://dart-review.googlesource.com/c/sdk/+/241842
Part 2 (vm): https://dart-review.googlesource.com/c/sdk/+/242000

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: Idf99bb98725a1ffb21a15b111f03f5461ed2c9d9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242384
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-04-29 01:03:50 +00:00
..
bin Set language to 2.15 for frontend_server, opt-out all existing files. 2022-03-31 14:14:55 +00:00
lib [vm] Enable new implementation of async/await in AOT mode 2022-04-29 01:03:50 +00:00
test Add --binary-protocol-address to frontend_server/. 2022-04-13 18:39:14 +00:00
LICENSE Update LICENSE 2021-04-07 10:28:38 +00:00
OWNERS [infra] Add OWNERS to the Dart SDK 2022-02-14 14:06:34 +00:00
pubspec.yaml Set language to 2.15 for frontend_server, opt-out all existing files. 2022-03-31 14:14:55 +00:00
README.md [frontend_server] add API stability documentatioon 2020-12-03 19:28:13 +00:00

README.md

The frontend_server package is used by both the flutter command line tool and the frontend_server_client package (used by webdev and package:test).

API Stability

Changes to the command line API or behavior should be tested against the follwing test suites (in addition to normal HHH testing):

Otherwise these changes will need to be carefully coordinated with the flutter tooling and frontend_server_client teams.

This API stability does not cover any of the source code APIs.

Stable subset

  • The frontend_server kernel compilation and expression evaluation for kernel should be considered "stable".
  • The frontend_server JavaScript compilation is semi-stable, but clients should anticipate coordinated breaking changes in the future.
  • The frontend_server JavaScript expression evaluation is experimental and is expected to change significantly from Dec 2020 through the end of 2021.
  • Specific flags like the --flutter-widget-cache may be added for experimentation and should not be considered stable.