NullVal class

A NullVal object represents the Dart language value null.

Inheritance
Implemented types

Constructors

NullVal({String? valueAsString})

Properties

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
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
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
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
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
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