NullVal class

A NullVal object represents the Dart language value null.

Inheritance
Implemented types

Constructors

NullVal({String? valueAsString})

Properties

allEntries InstanceRef?
The entries for a (Native)Finalizer instance.
getter/setter pairinherited
allocationLocation InstanceRef?
The stack trace associated with the allocation of a ReceivePort.
getter/setter pairinherited
associations List<MapAssociation>?
The elements of a Map instance.
getter/setter pairinherited
bound InstanceRef?
The bound of a TypeParameter or BoundedType.
getter/setter pairinherited
bytes String?
The bytes of a TypedData instance.
getter/setter pairinherited
callback InstanceRef?
The callback for a Finalizer instance.
getter/setter pairinherited
callbackAddress InstanceRef?
The callback for a NativeFinalizer instance.
getter/setter pairinherited
classRef ClassRef?
Instance references always include their class.
getter/setter pairinherited
closureContext ContextRef?
The context associated with a Closure instance.
getter/setter pairinherited
closureFunction FuncRef?
The function associated with a Closure instance.
getter/setter pairinherited
closureReceiver InstanceRef?
The receiver captured by tear-off Closure instance.
getter/setter pairinherited
count int?
The number of elements or associations or codeunits returned. This is only provided when it is less than length.
getter/setter pairinherited
debugName String?
A name associated with a ReceivePort used for debugging purposes.
getter/setter pairinherited
detach InstanceRef?
The detach key for a FinalizerEntry instance.
getter/setter pairinherited
elements List?
The elements of a List or Set instance.
getter/setter pairinherited
fields List<BoundField>?
The (non-static) fields of this Instance.
getter/setter pairinherited
fixedId bool?
Provided and set to true if the id of an Object is fixed. If true, the id of an Object is guaranteed not to change or expire. The object may, however, still be Collected.
getter/setter pairinherited
hashCode int
The hash code for this object.
no setteroverride
id String?
A unique identifier for an Object. Passed to the getObject RPC to reload this Object.
getter/setter pairinherited
identityHashCode int?
The identityHashCode assigned to the allocated object. This hash code is the same as the hash code provided in HeapSnapshot and CpuSample's returned by getAllocationTraces().
getter/setter pairinherited
isCaseSensitive bool?
Whether this regular expression is case sensitive.
getter/setter pairinherited
isMultiLine bool?
Whether this regular expression matches multiple lines.
getter/setter pairinherited
json Map<String, dynamic>?
getter/setter pairinherited
kind String?
What kind of instance is this?
getter/setter pairinherited
label String?
The label associated with a UserTag.
getter/setter pairinherited
length int?
The number of (non-static) fields of a PlainInstance, or the length of a List, or the number of associations in a Map, or the number of codeunits in a String, or the total number of fields (positional and named) in a Record.
getter/setter pairinherited
mirrorReferent ObjRef?
The referent of a MirrorReference instance.
getter/setter pairinherited
name String?
The name of a Type instance.
getter/setter pairinherited
offset int?
The index of the first element or association or codeunit returned. This is only provided when it is non-zero.
getter/setter pairinherited
parameterIndex int?
The index of a TypeParameter instance.
getter/setter pairinherited
parameterizedClass ClassRef?
The parameterized class of a type parameter:
getter/setter pairinherited
parameters List<Parameter>?
The list of parameter types for a function.
getter/setter pairinherited
pattern InstanceRef?
The pattern of a RegExp instance.
getter/setter pairinherited
portId int?
The port ID for a ReceivePort.
getter/setter pairinherited
propertyKey ObjRef?
The key for a WeakProperty instance.
getter/setter pairinherited
propertyValue ObjRef?
The key for a WeakProperty instance.
getter/setter pairinherited
returnType InstanceRef?
The return type of a function.
getter/setter pairinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
size int?
The size of this object in the heap.
getter/setter pairinherited
target ObjRef?
The target for a WeakReference instance.
getter/setter pairinherited
targetType InstanceRef?
The type bounded by a BoundedType instance.
getter/setter pairinherited
token InstanceRef?
The token passed to the finalizer callback for a FinalizerEntry instance.
getter/setter pairinherited
type String
no setteroverride
typeArguments TypeArgumentsRef?
The type arguments for this type.
getter/setter pairinherited
typeClass ClassRef?
The corresponding Class if this Type is canonical.
getter/setter pairinherited
typeParameters List<InstanceRef>?
The type parameters for a function.
getter/setter pairinherited
value InstanceRef?
The value being watched for finalization for a FinalizerEntry instance.
getter/setter pairinherited
valueAsString String?
Always 'null'.
getter/setter pairoverride
valueAsStringIsTruncated bool?
The valueAsString for String references may be truncated. If so, this property is added with the value 'true'.
getter/setter pairinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toJson() Map<String, dynamic>
override
toString() String
A string representation of this object.
override

Operators

operator ==(Object other) bool
The equality operator.
override

Static Methods

parse(Map<String, dynamic>? json) NullVal?
override