Union2<X1, X2>
extension type
Emulate the union of the types X1 and X2.
- on
Constructors
- Union2.in1(X1 value)
- Create a Union2 value from the first type argument.
- Union2.in2(X2 value)
- Create a Union2 value from the second type argument.
Properties
- as1 → X1
-
Return the value if it has type
X1, otherwise throw.no setter - as1OrNull → X1?
-
Return the value if it has type
X1, otherwise null.no setter - as2 → X2
-
Return the value if it has type
X2, otherwise throw.no setter - as2OrNull → X2?
-
Return the value if it has type
X2, otherwise null.no setter - is1 → bool
-
Return type iff the value has type
X1.no setter - is2 → bool
-
Return type iff the value has type
X2.no setter - isValid → bool
-
Return true iff this Union2 has type
X1orX2.no setter - value → Object?
-
final
Methods
-
split<
R> (R on1(X1), R on2(X2)) → R -
splitNamed<
R> ({R on1(X1)?, R on2(X2)?, R onOther(Object?)?, R onInvalid(Object?)?}) → R?