JSClassDefinition class

struct JSStaticFunction This structure contains properties and callbacks that define a type of object. All fields other than the version field are optional. Any pointer may be NULL. The staticValues and staticFunctions arrays are the simplest and most efficient means for vending custom properties. Statically declared properties autmatically service requests like getProperty, setProperty, and getPropertyNames. Property access callbacks are required only to implement unusual properties, like array indexes, whose names are not known at compile-time.

If you named your getter function "GetX" and your setter function "SetX", you would declare a JSStaticValue array containing "X" like this:

JSStaticValue StaticValueArray[] = { Standard JavaScript practice calls for storing function objects in prototypes, so they can be shared. The default JSClass created by JSClassCreate follows this idiom, instantiating objects with a shared, automatically generating prototype containing the class's function objects. The kJSClassAttributeNoAutomaticPrototype attribute specifies that a JSClass should not automatically generate such a prototype. The resulting JSClass instantiates objects with the default object prototype, and gives each instance object its own copy of the class's function objects.

Implemented types

• Finalizable

Mixed-in types

• AutoDisposeFinalizer

Constructors

JSClassDefinition.new(JSClassDefinitionRef _ref, {List<JSStaticVale>? staticValues, List<JSStaticFunction>? staticFunctions, bool autoDispose = true})

JSClassDefinition.create({int version = 0, JSClassAttributes attributes = JSClassAttributes.kJSClassAttributeNone, required String className, JSClass? parentClass, List<JSStaticVale>? staticValues, List<JSStaticFunction>? staticFunctions, JSObjectInitializeCallback? initialize, JSObjectFinalizeCallback? finalize, JSObjectHasPropertyCallback? hasProperty, JSObjectGetPropertyCallback? getProperty, JSObjectSetPropertyCallback? setProperty, JSObjectDeletePropertyCallback? deleteProperty, JSObjectGetPropertyNamesCallback? getPropertyNames, JSObjectCallAsConstructorCallback? callAsConstructor, JSObjectCallAsFunctionCallback? callAsFunction, JSObjectHasInstanceCallback? hasInstance, JSObjectConvertToTypeCallback? convertToType})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

nativeFinalizer ↔ NativeFinalizer?

dart 对象回收器

getter/setter pair, inherited

ref → JSClassDefinitionRef

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

attach(Pointer<NativeFinalizerFunction> callback, Pointer<Void> token, {bool autoDispose = true, Object? detach, int? externalSize}) → dynamic

将引擎持有的指针和 dart 对象回收器绑定。确保 dart 对象销毁的时候，释放引擎持有的指针和资源

inherited

detach() → dynamic

将引擎持有的指针和资源释放

inherited

free() → void

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited