public static ScriptFunctionObject CreateBuiltinFunction([NotNull] Realm realm, [NotNull] Func <ScriptArguments, ScriptValue> callback, ScriptObject prototype, int length, string name, ConstructorKind constructorKind = ConstructorKind.None)
{
var function = new ScriptFunctionObject(realm, prototype, true, callback, constructorKind);
function.DefineOwnProperty("length", new PropertyDescriptor(length, false, false, true));
function.DefineOwnProperty("name", new PropertyDescriptor(name, false, false, true));
return(function);
}
private static ScriptValue Revocable([NotNull] ScriptArguments arg)
{
//https://tc39.github.io/ecma262/#sec-proxy.revocable
var proxy = ProxyCreate(arg.Agent, arg[0], arg[1]);
var revoker = new ScriptFunctionObject(arg.Function.Realm, arg.Function.Realm.FunctionPrototype, true, ProxyRevocation, SpecialObjectType.RevocableProxy);
revoker.DefineOwnProperty("length", new PropertyDescriptor(0, false, false, true));
revoker.RevocableProxy = proxy;
var result = arg.Agent.ObjectCreate(arg.Function.Realm.ObjectPrototype);
result.CreateDataProperty("proxy", proxy);
result.CreateDataProperty("revoke", revoker);
return(result);
}