whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. Map<String, Schema>? schemas,
    2. Map<String, Response>? responses,
    3. Map<String, Parameter>? parameters,
    4. Map<String, Example>? examples,
    5. Map<String, RequestBody>? requestBodies,
    6. Map<String, Header>? headers,
    7. Map<String, SecurityScheme>? securitySchemes,
    8. Map<String, Link>? links,
    9. Map<String, ApiCallback>? callbacks,
    10. Map<String, PathItem>? pathItems,
    )?
)

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(@_SchemaMapConverter()  Map<String, Schema>? schemas,  Map<String, Response>? responses,  Map<String, Parameter>? parameters,  Map<String, Example>? examples,  Map<String, RequestBody>? requestBodies,  Map<String, Header>? headers,  Map<String, SecurityScheme>? securitySchemes,  Map<String, Link>? links, @_ApiCallbackMapConverter()  Map<String, ApiCallback>? callbacks,  Map<String, PathItem>? pathItems)?  $default,) {final _that = this;
switch (_that) {
case _Components() when $default != null:
return $default(_that.schemas,_that.responses,_that.parameters,_that.examples,_that.requestBodies,_that.headers,_that.securitySchemes,_that.links,_that.callbacks,_that.pathItems);case _:
  return null;

}
}