whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>({ TResult? object(String? title, String? description, dynamic defaultValue, String? ref, List<Schema>? allOf, List<Schema>? oneOf, List<Schema>? anyOf, List<String>? required, Discriminator? discriminator, ExternalDocs? externalDocs, Map<String, Schema>? properties, bool? nullable, Xml? xml,)?, TResult? boolean(Xml? xml, String? title, String? description, bool? defaultValue, bool? nullable, bool? example, String? ref,)?, TResult? string(Xml? xml, String? title, String? description, String? defaultValue, bool? nullable, StringFormat? format, String? pattern, String? example, int? minLength, int? maxLength, int? exclusiveMinimum, int? exclusiveMaximum, String? ref,)?, TResult? integer(Xml? xml, String? title, String? description, int? defaultValue, bool? nullable, IntegerFormat? format, int? example, int? minimum, int? maximum, int? exclusiveMinimum, int? exclusiveMaximum, int? multipleOf, String? ref,)?, TResult? number(Xml? xml, String? title, String? description, double? defaultValue, bool? nullable, NumberFormat? format, double? example, double? minimum, double? maximum, int? exclusiveMinimum, int? exclusiveMaximum, double? multipleOf, String? ref,)?, TResult? enumeration(String? title, String? description, String? example, String? defaultValue, bool? nullable, String? unknownValue, List<String>? values, String? ref,)?, TResult? array(Xml? xml, String? title, String? description, List? defaultValue, bool? nullable, dynamic example, int? minItems, int? maxItems, Schema items, String? ref,)?, TResult? map(Xml? xml, String? title, String? description, Map? defaultValue, bool? nullable, Map? example, Schema? valueSchema, String? ref,)?, })

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>({TResult? Function( String? title,  String? description, @JsonKey(name: 'default')  dynamic defaultValue, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref, @_SchemaListConverter()  List<Schema>? allOf, @_SchemaListConverter()  List<Schema>? oneOf, @_SchemaListConverter()  List<Schema>? anyOf,  List<String>? required,  Discriminator? discriminator,  ExternalDocs? externalDocs,  Map<String, Schema>? properties,  bool? nullable,  Xml? xml)?  object,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default')  bool? defaultValue,  bool? nullable,  bool? example, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  boolean,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default')  String? defaultValue,  bool? nullable, @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)  StringFormat? format,  String? pattern,  String? example, @JsonKey(fromJson: _fromJsonInt)  int? minLength, @JsonKey(fromJson: _fromJsonInt)  int? maxLength, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMinimum, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMaximum, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  string,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default', fromJson: _fromJsonInt)  int? defaultValue,  bool? nullable, @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)  IntegerFormat? format, @JsonKey(fromJson: _fromJsonInt)  int? example, @JsonKey(fromJson: _fromJsonInt)  int? minimum, @JsonKey(fromJson: _fromJsonInt)  int? maximum, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMinimum, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMaximum, @JsonKey(fromJson: _fromJsonInt)  int? multipleOf, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  integer,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default', fromJson: _fromJsonDouble)  double? defaultValue,  bool? nullable, @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)  NumberFormat? format, @JsonKey(fromJson: _fromJsonDouble)  double? example, @JsonKey(fromJson: _fromJsonDouble)  double? minimum, @JsonKey(fromJson: _fromJsonDouble)  double? maximum, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMinimum, @JsonKey(fromJson: _fromJsonInt)  int? exclusiveMaximum, @JsonKey(fromJson: _fromJsonDouble)  double? multipleOf, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  number,TResult? Function( String? title,  String? description,  String? example, @JsonKey(name: 'default')  String? defaultValue,  bool? nullable, @JsonKey(includeToJson: false, includeFromJson: false)  String? unknownValue, @JsonKey(name: 'enum')  List<String>? values, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  enumeration,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default')  List? defaultValue,  bool? nullable,  dynamic example, @JsonKey(fromJson: _fromJsonInt)  int? minItems, @JsonKey(fromJson: _fromJsonInt)  int? maxItems,  Schema items, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  array,TResult? Function( Xml? xml,  String? title,  String? description, @JsonKey(name: 'default')  Map? defaultValue,  bool? nullable,  Map? example, @JsonKey(name: 'additionalProperties', toJson: _toMapProps, fromJson: _fromMapProps)  Schema? valueSchema, @JsonKey(name: '\$ref')@_SchemaRefConverter()  String? ref)?  map,}) {final _that = this;
switch (_that) {
case SchemaObject() when object != null:
return object(_that.title,_that.description,_that.defaultValue,_that.ref,_that.allOf,_that.oneOf,_that.anyOf,_that.required,_that.discriminator,_that.externalDocs,_that.properties,_that.nullable,_that.xml);case SchemaBoolean() when boolean != null:
return boolean(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.example,_that.ref);case SchemaString() when string != null:
return string(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.format,_that.pattern,_that.example,_that.minLength,_that.maxLength,_that.exclusiveMinimum,_that.exclusiveMaximum,_that.ref);case SchemaInteger() when integer != null:
return integer(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.format,_that.example,_that.minimum,_that.maximum,_that.exclusiveMinimum,_that.exclusiveMaximum,_that.multipleOf,_that.ref);case SchemaNumber() when number != null:
return number(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.format,_that.example,_that.minimum,_that.maximum,_that.exclusiveMinimum,_that.exclusiveMaximum,_that.multipleOf,_that.ref);case SchemaEnum() when enumeration != null:
return enumeration(_that.title,_that.description,_that.example,_that.defaultValue,_that.nullable,_that.unknownValue,_that.values,_that.ref);case SchemaArray() when array != null:
return array(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.example,_that.minItems,_that.maxItems,_that.items,_that.ref);case SchemaMap() when map != null:
return map(_that.xml,_that.title,_that.description,_that.defaultValue,_that.nullable,_that.example,_that.valueSchema,_that.ref);case _:
  return null;

}
}