tree a4f5f8a2631385493d19a1dd4aec7ad796abf8fd
parent fe3969126944e74172d3297bfa1bc7a028b55270
author Jens Johansen <jensj@google.com> 1537783167 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1537783167 +0000

Introduce option to serialize less in frontend_server

This CL introduces an option - unsafe-package-serialization - where a
caller can select to reuse the serialization of packages. This makes it
unsafe in general, but if never invalidating packages, such as in tests,
it can be used to greatly increase the speed of processing many inputs.

This change - used in flutter - takes the time it takes to run
`flutter test` in `packages/flutter` from ~2 minutes 30 seconds to
~1 minute 15 seconds (on my machine).
A change to how flutter test executes the frontend_server
(to pass the option) is needed for it to take effect though.

Change-Id: Ibe47b43c41286eb08f80c9e7a398e1dc67bf9bc0
Reviewed-on: https://dart-review.googlesource.com/48200
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>