A NullVal object represents the Dart language value null.

Inheritance

• Object
• Response
• Obj
• Instance
• NullVal

Implemented types

• NullValRef

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