whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>({
  1. TResult? apiKey(
    1. String name,
    2. String? description,
    3. ApiKeyLocation location
    )?,
  2. TResult? http(
    1. HttpSecurityScheme scheme,
    2. String? bearerFormat,
    3. String? description
    )?,
  3. TResult? mutualTLS(
    1. String? description
    )?,
  4. TResult? oauth2(
    1. String? description,
    2. OAuthFlows flows
    )?,
  5. TResult? openIdConnect(
    1. String? description,
    2. String url
    )?,
})

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 name,  String? description, @JsonKey(name: 'in')  ApiKeyLocation location)?  apiKey,TResult? Function( HttpSecurityScheme scheme,  String? bearerFormat,  String? description)?  http,TResult? Function( String? description)?  mutualTLS,TResult? Function( String? description,  OAuthFlows flows)?  oauth2,TResult? Function( String? description, @JsonKey(name: 'openIdConnectUrl')  String url)?  openIdConnect,}) {final _that = this;
switch (_that) {
case SecuritySchemeApiKey() when apiKey != null:
return apiKey(_that.name,_that.description,_that.location);case SecuritySchemeHttp() when http != null:
return http(_that.scheme,_that.bearerFormat,_that.description);case SecuritySchemeMutualTLS() when mutualTLS != null:
return mutualTLS(_that.description);case SecuritySchemeOauth2() when oauth2 != null:
return oauth2(_that.description,_that.flows);case SecuritySchemeOpenIdConnect() when openIdConnect != null:
return openIdConnect(_that.description,_that.url);case _:
  return null;

}
}