The new updateAnalysisOptions4 parameter is a callback function, similar to updateAnalysisOptions3, but with one removed parameter itself, the `DartSdk sdk` parameter. The one place where this parameter was used in the callback passed by the caller, was in DAS's ContextManager, and it was just used in order to compute a FeatureSet from (a) the computed DartSdk and (b) the command-line `--enable-experiment` options. We can instead provide a `enabledExperiments` parameter on AnalysisContextCollectionImpl, leading to a simpler API and still a simple implementation in ContextBuilder. The reason for the incremental migration is that dartdoc, and possibly some internal clients, use updateAnalysisOptions3. Change-Id: Ie990ab8f7b850aed1ce3ef39ab71c01835c080da Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447400 Commit-Queue: Samuel Rawlins <srawlins@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
SDK development code analysis
dartanalyzer used to be the tool for statically analyzing dart code
at the command line. However, this tool has been replaced with
dart analyze for this purpose in current SDKs and will no longer
be published on pub.
Do not depend on the command line interface or other semantics in
this directory as it is now an internal tool for SDK development, used
as the dart2analyzer "compiler" for tools/test.py in the SDK.
It is configured as part of the test runner,
here.
SDK development usage
For SDK development, run analysis from the test tool to validate analysis conclusions on language samples in the testing directory. From the root of the SDK:
tools/test.py --build --use-sdk -c dart2analyzer co19 language
This will build the Dart VM and compile dartanalyzer into a snapshot, then use
that snapshot while analyzing those directories under testing/. Without
--use-sdk, test.py will use the source code version of the analyzer
instead of the compiled one, which can be useful for debugging.