generateForAnnotatedElement method

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

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) {
  // print("building element ${element.name}");
  if (element is! ClassElement) {
    final name = element.displayName;
    throw InvalidGenerationSourceError(
      'Generator cannot target `$name`.',
      todo: 'Remove the [RestApi] annotation from `$name`.',
    );
  }
  return _implementClass(element, annotation);
}