SentinelKind class Null safety

A SentinelKind is used to distinguish different kinds of Sentinel objects.

Adding new values to SentinelKind is considered a backwards compatible change. Clients must handle this gracefully.

Properties

hashCode → int: The hash code for this object.
read-onlyinherited
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited

noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

kBeingInitialized → const String: Indicates that a variable or field is in the process of being initialized.
'BeingInitialized'
kCollected → const String: Indicates that the object referred to has been collected by the GC.
'Collected'
kExpired → const String: Indicates that an object id has expired.
'Expired'
kFree → const String: Reserved for future use.
'Free'
kNotInitialized → const String: Indicates that a variable or field has not been initialized.
'NotInitialized'
kOptimizedOut → const String: Indicates that a variable has been eliminated by the optimizing compiler.
'OptimizedOut'