generateForAnnotatedElement method

  1. @override
String generateForAnnotatedElement(
  1. Element element,
  2. ConstantReader annotation,
  3. BuildStep buildStep
)

Implement to return source code to generate for element.

This method is invoked based on finding elements annotated with an instance of T. The annotation is provided as a ConstantReader.

Supported return values include a single String or multiple String instances within an Iterable or Stream. It is also valid to return a Future of String, Iterable, or Stream.

Implementations should return null when no content is generated. Empty or whitespace-only String instances are also ignored.

Implementation

@override
String generateForAnnotatedElement(
  Element element,
  ConstantReader annotation,
  BuildStep buildStep,
) {
  if (element.isPrivate) {
    throw InvalidGenerationSourceError(
      'Widgetbook annotations cannot be applied to private elements',
      element: element,
    );
  }

  final data = WidgetbookLocalizationBuilderData(
    name: element.name!,
    importStatement: element.importStatement,
    dependencies: element.dependencies,
  );

  return [data].toJson();
}