generateForAnnotatedElement method

  1. @override
dynamic 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
generateForAnnotatedElement(
    Element element, ConstantReader annotation, BuildStep buildStep) {
  var visitor = ModelClassVisitor();
  // register visitor
  element.visitChildren(visitor);
  String name = annotation.read('moduleName').stringValue;

  /* old and deprecated, since it's not using visitor

  String location = element.location.components.first;
  String moduleClassName = LibraryReader(element.library).classes.first.name;
  String methodName = LibraryReader(element.library).classes.first.methods.first.name;
  */
  String moduleClassName =
      visitor.className!.getDisplayString(withNullability: false);
  String? location = visitor.location;
  String methodName = visitor.methodNames.first;

  log.fine("element.name ${name}");
  log.fine("element.location ${location}");
  log.fine(" LibraryReader(element).classes.first.name ${moduleClassName}");
  log.fine(" methodName ${methodName}");
  return jsonEncode(MicroPackageModuleModel(location, name, moduleClassName,
      methodName: methodName));
}