public unsafe ClassDefinition(JSClassID id, JSClassCall call, JSClassGCMark gcMark, JSClassFinalizer finalizer)
{
if ((id.ToInt32() & 0xFFFF0000) != 0) // JSObject.class_id is 16 bit unsigned integer.
{
throw new ArgumentOutOfRangeException(nameof(id));
}
JS_NewClassID(ref id);
this.ID = id;
if (call != null)
{
_callImpl = sizeof(JSValue) == 8 ? (Delegate) new JSClassCall32(CallImpl8) : new JSClassCall(CallImpl16);
this.Call = call;
}
if (gcMark != null)
{
_markImpl = GCMarkImpl;
this.Mark = gcMark;
}
if (finalizer != null)
{
_finalizerImpl = FinalizerImpl;
this.Finalizer = finalizer;
}
}
/// <summary>
/// Register a new JS class.
/// </summary>
/// <param name="className">The name of the class.</param>
/// <param name="call">
/// A function callback if the object of this class is a function. If objects of a class
/// shouldn't be callable, use NULL. Most objects are not callable.
/// </param>
/// <param name="gcMark">
/// The QuickJS JavaScript engine calls this callback during the mark phase of
/// garbage collection.
/// </param>
/// <param name="finalizer">
/// An object finalizer callback. This callback invoked when
/// an object is finalized (prepared for garbage collection).
/// </param>
public unsafe JSClassID RegisterNewClass(string className, JSClassCall call, JSClassGCMark gcMark, JSClassFinalizer finalizer)
{
if (className is null)
{
throw new ArgumentNullException(nameof(className));
}
var classDefinition = new ClassDefinition(default, call, gcMark, finalizer);
public ExoticClassDefinition(JSClassID id, JSClassCall call, JSClassGCMark gcMark, JSClassFinalizer finalizer,
JSGetOwnPropertyDelegate getOwnProperty, JSGetOwnPropertyNamesDelegate getOwnPropertyNames,
JSDeletePropertyDelegate deleteProperty, JSDefineOwnPropertyDelegate defineOwnProperty,
JSHasPropertyDelegate hasProperty, JSGetPropertyDelegate getProperty, JSSetPropertyDelegate setProperty)
: base(id, call, gcMark, finalizer)
{
_callbacks.get_own_property = getOwnProperty;
_callbacks.get_own_property_names = getOwnPropertyNames;
_callbacks.delete_property = deleteProperty;
_callbacks.define_own_property = defineOwnProperty;
_callbacks.has_property = hasProperty;
_callbacks.get_property = getProperty;
_callbacks.set_property = setProperty;
if (getOwnProperty != null)
{
_callbacksImpl.get_own_property = GetOwnPropertyImpl;
}
if (getOwnPropertyNames != null)
{
_callbacksImpl.get_own_property_names = new JSGetOwnPropertyNamesUnsafeDelegate(GetOwnPropertyNamesImpl);
}
if (deleteProperty != null)
{
_callbacksImpl.delete_property = DeletePropertyImpl;
}
if (defineOwnProperty != null)
{
_callbacksImpl.define_own_property = DefineOwnPropertyImpl;
}
if (hasProperty != null)
{
_callbacksImpl.has_property = HasPropertyImpl;
}
if (getProperty != null)
{
_callbacksImpl.get_property = sizeof(JSValue) == 8 ? (Delegate) new JSGetPropertyDelegate32(GetPropertyImpl8) : new JSGetPropertyDelegate(GetPropertyImpl16);
}
if (setProperty != null)
{
_callbacksImpl.set_property = SetPropertyImpl;
}
_exotic = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(JSClassExoticMethods)));
Marshal.StructureToPtr(_callbacksImpl, _exotic, false);
}