when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String name,
    2. @JsonKey.new(name: 'full_name') String fullName,
    3. String? tap,
    4. String desc,
    5. String? license,
    6. String homepage,
    7. Map<String, dynamic> versions,
    8. List<String> dependencies,
    9. @JsonKey.new(name: 'build_dependencies') List<String> buildDependencies,
    10. @JsonKey.new(name: 'optional_dependencies') List<String> optionalDependencies,
    11. @JsonKey.new(name: 'keg_only') bool kegOnly,
    12. bool deprecated,
    13. bool disabled,
    14. Map<String, dynamic>? analytics,
    15. @JsonKey.new(name: 'analytics_linux') Map<String, dynamic>? analyticsLinux,
    16. @JsonKey.new(name: 'generated_date') String? generatedDate,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String name, @JsonKey(name: 'full_name')  String fullName,  String? tap,  String desc,  String? license,  String homepage,  Map<String, dynamic> versions,  List<String> dependencies, @JsonKey(name: 'build_dependencies')  List<String> buildDependencies, @JsonKey(name: 'optional_dependencies')  List<String> optionalDependencies, @JsonKey(name: 'keg_only')  bool kegOnly,  bool deprecated,  bool disabled,  Map<String, dynamic>? analytics, @JsonKey(name: 'analytics_linux')  Map<String, dynamic>? analyticsLinux, @JsonKey(name: 'generated_date')  String? generatedDate)  $default,) {final _that = this;
switch (_that) {
case _FormulaDetail():
return $default(_that.name,_that.fullName,_that.tap,_that.desc,_that.license,_that.homepage,_that.versions,_that.dependencies,_that.buildDependencies,_that.optionalDependencies,_that.kegOnly,_that.deprecated,_that.disabled,_that.analytics,_that.analyticsLinux,_that.generatedDate);case _:
  throw StateError('Unexpected subclass');

}
}