in source_gen/lib/src/generator_for_annotation.dart [49:65]
FutureOr<String> generate(LibraryReader library, BuildStep buildStep) async {
final values = <String>{};
for (var annotatedElement in library.annotatedWith(typeChecker)) {
final generatedValue = generateForAnnotatedElement(
annotatedElement.element,
annotatedElement.annotation,
buildStep,
);
await for (var value in normalizeGeneratorOutput(generatedValue)) {
assert(value.length == value.trim().length);
values.add(value);
}
}
return values.join('\n\n');
}