[analysis_server] Handle requests for resolved units in handlers between initialization and analysis roots being set

If you open VS Code and have some Dart files open, it may send requests to the analysis server before we have (asynchronously) set up the analysis roots. This often results in "File not analyzed" errors in the console, but until now I had believed these errors to not cause any visible issues.

However, https://github.com/Dart-Code/Dart-Code/issues/5030 had a good repro for where this is visible - the Outline view would never populate for these open files.

We had some existing code to wait for in-progress context rebuilds to complete when fetching a resolved unit in a request handler, but requests could still get in before that started.

This change also waits for the client to send Initialized, which is when we start the analysis root build, so this bridges that gap and ensures the initial analysis roots are set before any handlers get to run.

Fixes https://github.com/Dart-Code/Dart-Code/issues/5030

Change-Id: I4b2d936f533f0696e3e363972faa82a2304276c0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/356722
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
7 files changed
tree: 8b028221afa4386984028bf84920b09f44661925
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. CONTRIBUTING.md
  26. DEPS
  27. LICENSE
  28. OWNERS
  29. PATENT_GRANT
  30. PRESUBMIT.py
  31. README.dart-sdk
  32. README.md
  33. sdk.code-workspace
  34. sdk_args.gni
  35. SECURITY.md
  36. WATCHLISTS
README.md

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

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See LICENSE and PATENT_GRANT.

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