UUpdateMemberRole class
Overview
This is an union object to improve safety and convenience of objects using Enum.
Enum provides a very powerful type for a specific group of data, but at the same time it means a loss of flexibility: values not defined in Enum are either completely ignored or an exception is thrown if parsing fails. This union object exists to solve that problem.
This union object handles the KnownValue
, a known enum value defined in Lexicon,
and the UnknownValue
, an unknown string value not defined in Lexicon. In other words,
it can handle unknown values while enjoying the type safety of Enum.
Usage
// use when syntax.
final value = object.when(
knownValue: (data) => data, // => KnownUpdateMemberRole
unknownValue: (data) => data, // => String
);
// or simpler way.
if (object.isKnownValue) {
print(object.knownValue); // => KnownUpdateMemberRole or null
} else if (object.isUnknownValue) {
print(object.unknownValue); // => String or null
}
- Implementers
- Available extensions
- Annotations
-
- @freezed
Constructors
- UUpdateMemberRole.knownValue({required KnownUpdateMemberRole data})
-
constfactory
- UUpdateMemberRole.unknownValue({required String data})
-
constfactory
Properties
Methods
-
map<
TResult extends Object?> ({required TResult knownValue(UUpdateMemberRoleKnownValue value), required TResult unknownValue(UUpdateMemberRoleUnknownValue value)}) → TResult -
inherited
-
mapOrNull<
TResult extends Object?> ({TResult? knownValue(UUpdateMemberRoleKnownValue value)?, TResult? unknownValue(UUpdateMemberRoleUnknownValue value)?}) → TResult? -
inherited
-
maybeMap<
TResult extends Object?> ({TResult knownValue(UUpdateMemberRoleKnownValue value)?, TResult unknownValue(UUpdateMemberRoleUnknownValue value)?, required TResult orElse()}) → TResult -
inherited
-
maybeWhen<
TResult extends Object?> ({TResult knownValue(KnownUpdateMemberRole data)?, TResult unknownValue(String data)?, required TResult orElse()}) → TResult -
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
when<
TResult extends Object?> ({required TResult knownValue(KnownUpdateMemberRole data), required TResult unknownValue(String data)}) → TResult -
inherited
-
whenOrNull<
TResult extends Object?> ({TResult? knownValue(KnownUpdateMemberRole data)?, TResult? unknownValue(String data)?}) → TResult? -
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited