writeClassDecode method

@override void writeClassDecode(ObjcOptions generatorOptions, Root root, Indent indent, Class classDefinition, { required String dartPackageName, })

Writes a single class decode method to indent.

Implementation

@override
void writeClassDecode(
  ObjcOptions generatorOptions,
  Root root,
  Indent indent,
  Class classDefinition, {
  required String dartPackageName,
}) {
  final String className =
      _className(generatorOptions.prefix, classDefinition.name);
  indent.write('+ ($className *)fromList:(NSArray<id> *)list ');
  indent.addScoped('{', '}', () {
    const String resultName = 'pigeonResult';
    indent.writeln('$className *$resultName = [[$className alloc] init];');
    enumerate(getFieldsInSerializationOrder(classDefinition),
        (int index, final NamedType field) {
      final String valueGetter = 'GetNullableObjectAtIndex(list, $index)';
      final String? primitiveExtractionMethod =
          _nsnumberExtractionMethod(field.type);
      final String ivarValueExpression;
      if (field.type.isEnum && !field.type.isNullable) {
        _writeEnumBoxToEnum(
          indent,
          field,
          valueGetter,
          prefix: generatorOptions.prefix,
        );
        ivarValueExpression = 'enumBox.value';
      } else if (primitiveExtractionMethod != null) {
        ivarValueExpression = '[$valueGetter $primitiveExtractionMethod]';
      } else {
        ivarValueExpression = valueGetter;
      }
      indent.writeln('$resultName.${field.name} = $ivarValueExpression;');
    });
    indent.writeln('return $resultName;');
  });

  indent.write(
      '+ (nullable $className *)nullableFromList:(NSArray<id> *)list ');
  indent.addScoped('{', '}', () {
    indent.writeln('return (list) ? [$className fromList:list] : nil;');
  });
}