fix(deps): update dependency dart_style to v3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
dart_style	dependencies	major	^2.3.7 -> ^3.0.0

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Release Notes

dart-lang/dart_style (dart_style)

v3.0.1

Compare Source

• Handle trailing commas in for-loop updaters (#​1354).
• Format || patterns like fallthrough cases in switch expressions (#​1602).
• Handle comments and metadata before variables more gracefully (#​1604).
• Ensure comment formatting is idempotent (#​1606).
• Better indentation of leading comments on property accesses in binary operator operands (#​1611).
• Don't crash on doc comments in local variable declarations (#​1621).

v3.0.0

Compare Source

This is a large change. Under the hood, the formatter was almost completely rewritten, with the codebase now containing both the old and new implementations. The old formatter exists to support the older "short" style and the new code implements the new "tall" style.

The formatter uses the language version of the formatted code to determine which style you get. If the language version is 3.6 or lower, the code is formatted with the old style. If 3.7 or later, you get the new tall style. You typically control the language version by setting a min SDK constraint in your package's pubspec.

In addition to the new formatting style, a number of other API and CLI changes are included, some of them breaking:

• Support project-wide page width configuration. By long request, you can now configure your preferred formatting page width on a project-wide basis. When formatting files, the formatter will look in the file's directory and any surrounding directories for an analysis_options.yaml file. If it finds one, it looks for the following YAML:

  formatter:
    page_width: 123
  

  If it finds a formatter key containing a map with a page_width key whose value is an integer, then that is the page width that the file is formatted using. Since the formatter will walk the surrounding directories until it finds an analysis_options.yaml file, this can be used to globally set the page width for an entire directory, package, or even collection of packages.

• Support overriding the page width for a single file. In code formatted using the new tall style, you can use a special marker comment to control the page width that it's formatted using:

  // dart format width=30
  main() {
    someExpression +
        thatSplitsAt30;
  }
  

  This comment must appear before any code in the file and must match that format exactly. The width set by the comment overrides the width set by any surrounding analysis_options.yaml file.

  This feature is mainly for code generators that generate and immediately format code but don't know about any surrounding analysis_options.yaml that might be configuring the page width. By inserting this comment in the generated code before formatting, it ensures that the code generator's behavior matches the behavior of dart format.

  End users should mostly use analysis_options.yaml for configuring their preferred page width (or do nothing and use the default page width of 80).

• Support opting out a region of code from formatting. In code formatted using the new tall style, you can use a pair of special marker comments to opt a region of code out of automated formatting:

  main() {
    this.isFormatted();
    // dart format off
    no   +   formatting
      +
        here;
    // dart format on
    formatting.isBackOnHere();
  }
  

  The comments must be exactly // dart format off and // dart format on. A file may have multiple regions, but they can't overlap or nest.

  This can be useful for highly structured data where custom layout can help a reader understand the data, like large lists of numbers.

• Remove support for fixes and --fix. The tools that come with the Dart SDK provide two ways to apply automated changes to code: dart format --fix and dart fix. The former is older and used to be faster. But it can only apply a few fixes and hasn't been maintained in many years. The dart fix command is actively maintained, can apply all of the fixes that dart format --fix could apply and many many more.

  In order to avoid duplicate engineering effort, we decided to consolidate on dart fix as the one way to make automated changes that go beyond the simple formatting and style changes that dart format applies.

  The ability to apply fixes is also removed from the DartFormatter() library API.

• Make the language version parameter to DartFormatter() mandatory. This way, the formatter always knows what language version the input is intended to be treated as. Note that a // @​dart= language version comment, if present, overrides the specified language version. You can think of the version passed to the DartFormatter() constructor as a "default" language version which the file's contents may then override.

  If you don't particularly care about the version of what you're formatting, you can pass in DartFormatter.latestLanguageVersion to unconditionally get the latest language version that the formatter supports. Note that doing so means you will also implicitly opt into the new tall style.

  This change only affects the library API. When using the formatter from the command line, you can use --language-version= to specify a language version or pass --language-version=latest to use the latest supported version. If omitted, the formatter will look in the surrounding directories for a package config file and infer the language version for the package from that, similar to how other Dart tools behave like dart analyze and dart run.

• Remove the old formatter executables and CLI options. Before the dart format command was added to the core Dart SDK, users accessed the formatter by running a separate dartfmt executable that was included with the Dart SDK. That executable had a different CLI interface. For example, you had to pass -w to get it to overwrite files. When we added dart format, we took that opportunity to revamp the CLI options.

  However, the dart_style package still exposed an executable with the old CLI. If you ran dart pub global activate dart_style, this would give you a dartfmt (and dartformat) executable with the old CLI options. Now that almost everyone is using dart format, we have removed the old CLI and the old package executables.

  You can still run the formatter on the CLI through the package (for example, if you want to use a particular version of dart_style instead of the one bundled with your Dart SDK). But it now uses the exact same CLI options and arguments as the dart format command. You can invoke it with dart run dart_style:format <args...>.

• Treat the --stdin-name name as a path when inferring language version. When reading input on stdin, the formatter still needs to know what language version to parse the code as. If the --stdin-name option is set, then that is treated as a file path and the formatter looks for a package config surrounding that file path to infer the language version from.

  If you don't want that behavior, pass in an explicit language version using --language-version=, or use --language-version=latest to parse the input using the latest language version supported by the formatter.

  If --stdin-name and --language-version are both omitted, then the formatter parses stdin using the latest supported language version.

• Rename the --line-length option to --page-width. This is consistent with the public API, internal implementation, and docs, which all use "page width" to refer to the limit that the formatter tries to fit code into.

  The --line-length name is still supported for backwards compatibility, but may be removed at some point in the future. You're encouraged to move to --page-width. Use of this option (however it's named) is rare, and will likely be even rarer now that project-wide configuration is supported, so this shouldn't affect many users.

• Apply class modifiers to API classes. The dart_style package exposes only a few classes in its public API: DartFormatter, SourceCode, FormatterException, and UnexpectedOutputException. None were ever intended to be extended or implemented. They are now all marked final to make that intention explicit.

• Require package:analyzer >=6.5.0 <8.0.0.

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[4akloon]

please update dart_style, i have conflicts with freezed