serialize method

@override String? serialize(DartType targetType, String expression, TypeHelperContext context)

Returns Dart code that serializes an expression representing a Dart object of type targetType.

If targetType is not supported, returns null.

Let's say you want to serialize a class Foo as just its id property of type int.

Treating expression as a opaque Dart expression, the serialize implementation could be a simple as:

String serialize(DartType targetType, String expression) =>
  "$expression.id";
```.

Implementation

@override
String? serialize(
  DartType targetType,
  String expression,
  TypeHelperContext context,
) {
  if (targetType.isDartCoreObject ||
      targetType.isDynamic ||
      simpleJsonTypeChecker.isAssignableFromType(targetType)) {
    return expression;
  }

  return null;
}