[analyzer] Prepare to rename error codes to camelCase. A temporary script is added, `pkg/analyzer/tool/messages/rename_error_constants.dart`, which will rename every error code in the analyzer (and related packages) from SCREAMING_CAPS to camelCase. Also, the error message code generator is enhanced so that it can generate error codes using either SCREAMING_CAPS or camelCase, based on the setting of a temporary constant, `_useLowerCamelCaseNames`. The constant is currently set to `false`; `rename_error_constants.dart` will change it to `true`. There are a few references to the old SCREAMING_CAPS names that won't be able to be automatically addressed by the script. To avoid breakages, a mechanism has been added to the error message code generator to preserve those names after the migration, as deprecated aliases. The names that will be preserved are listed in the `ErrorClassInfo.deprecatedSnakeCaseNames` field, in `error_code_info.dart`. These will be cleaned up in future CLs. Once the rename is complete, the temporary script and constant will be removed. Change-Id: I6a6a69640b077c6bc4da92cec97686e4b2c3b906 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/444920 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Moritz Sümmermann <mosum@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
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 is free and open source.
See LICENSE and PATENT_GRANT.
Visit dart.dev to learn more about the language, tools, and to find codelabs.
Browse pub.dev for more packages and libraries contributed by the community and the Dart team.
Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).
If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.
There are more documents in our repo at docs.
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.
Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.