update source_gen to v4

[NatsuOnFire]

No description provided.

[Copilot]

Pull request overview

This pull request upgrades the source_gen dependency to version 4.0.0 and updates related dependencies across the repository. This upgrade requires changes to accommodate breaking API changes in the analyzer and build_test packages, including the transition from deprecated element APIs to newer fragment-based APIs.

Key changes:

• Updated source_gen from 2.0.0 to 4.0.0 and analyzer from 7.3.0 to 8.0.0
• Migrated from deprecated element APIs (name, enclosingElement3, parameters, etc.) to newer alternatives (displayName, enclosingElement, formalParameters)
• Updated test utilities to use new build_test v3.0.0 API (result.readerWriter instead of InMemoryAssetWriter)

Reviewed changes

Copilot reviewed 33 out of 33 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/realm_generator/pubspec.yaml	Updated core dependencies including source_gen, analyzer, build, and build_test
packages/realm_generator/test/test_util.dart	Migrated test builder usage from InMemoryAssetWriter to result.readerWriter API
packages/realm_generator/test/common.dart	Changed from AnalysisError to Diagnostic for error handling
packages/realm_generator/lib/src/type_checkers.dart	Replaced TypeChecker.fromRuntime with TypeChecker.typeNamed
packages/realm_generator/lib/src/realm_field_info.dart	Updated field name access from name to displayName
packages/realm_generator/lib/src/field_element_ex.dart	Migrated multiple deprecated element APIs to current versions
packages/realm_generator/lib/src/error.dart	Changed enclosingElement3 to enclosingElement
packages/realm_generator/lib/src/element.dart	Updated from getElementDeclaration to getFragmentDeclaration API
packages/realm_generator/lib/src/dart_type_ex.dart	Replaced TypeChecker.fromRuntime with TypeChecker.typeNamed and added package specifications
packages/realm_generator/lib/src/class_element_ex.dart	Changed name to displayName for element access
packages/ejson_lint/pubspec.yaml	Updated analyzer and custom_lint_builder dependencies
packages/ejson_lint/lib/src/lints/*.dart	Migrated lint rules to use DiagnosticSeverity, DiagnosticReporter, and fragment-based APIs
packages/ejson_generator/pubspec.yaml	Updated source_gen, analyzer, build, and build_test dependencies
packages/ejson_generator/test/compile_test.dart	Migrated test builder usage to result.readerWriter API
packages/ejson_generator/lib/src/generator.dart	Changed from parameters to formalParameters and name to displayName
packages/ejson_analyzer/pubspec.yaml	Updated analyzer and source_gen dependencies
packages/ejson_analyzer/lib/src/ejson_analyzer_base.dart	Replaced TypeChecker.fromRuntime with TypeChecker.typeNamed
packages/*/pubspec.yaml	Updated SDK constraint to ^3.7.0 and various lints/test dependencies
CHANGELOG.md	Documented the dependency updates

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[NatsuOnFire]

@nirinchev
I don't understand why the CI isn't working. Do you have any idea?

[mszczesniak94]

@NatsuOnFire I checked your branch (with flutter 3.35.5) and when running melos bs I encountered issues with the realm_tests package:

  - realm_tests
    └> packages/realm/tests
       └> Failed to install.

Resolving dependencies...
Note: test_api is pinned to version 0.7.6 by flutter_test from the flutter SDK.
See https://dart.dev/go/sdk-version-pinning for details.
Because test >=1.27.0 depends on test_api 0.7.8 and test >=1.26.3 <1.27.0 depends on test_api 0.7.7, test >=1.26.3 requires test_api 0.7.7 or 0.7.8.
And because every version of flutter_test from sdk depends on test_api 0.7.6, flutter_test from sdk is incompatible with test >=1.26.3.
So, because realm_tests depends on both flutter_test from sdk and test ^1.26.3, version solving failed.
Failed to update packages.
BootstrapException: Failed to install.: realm_tests at /Users/marcinszczesniak/Mobile/realm-dart/packages/realm/tests.

It seems that the dependencies require a higher version of test_api than the one bundled with the current Flutter SDK. If you want to revert to an older test_api, it looks like analytics would also need to be downgraded from version 8 to 7.

One solution I found is that the latest Flutter version (^3.38) satisfies the required test_api constraints, and the bootstrap process completes successfully.

So it appears you may need to either downgrade some dependencies or upgrade Flutter to ^3.38.0 (I checked you branch with flutter 3.38.3 and everything seems ok)

Hope this helps!

[NatsuOnFire]

Thanks @mszczesniak94
I upgrade all packages to test 1.27 and flutter 3.38 🙂