public static JsFunction CreateDelegate(JsObject thisExpression, JsFunction lambda, JsTypeFunction delegateType = null, string delegateKey = null)
{
delegateType = delegateType ?? Jsni.reference("System.Delegate").As <JsTypeFunction>();
JsFunction delegateFunc = null;
delegateFunc = Jsni.function(() =>
{
return(lambda.apply(delegateFunc.As <Delegate>().Target.As <JsObject>(), Jsni.arguments().As <JsArray>()));
});
delegateFunc.prototype = Jsni.@new(delegateType);
delegateFunc.memberset("get_Target", Jsni.function(() => thisExpression));
delegateFunc.memberset("GetType", Jsni.function(() => delegateType.GetTypeFromType.invoke()));
Jsni.memberset(delegateFunc, SpecialNames.TypeField, delegateType);
Jsni.memberset(delegateFunc, "Invoke", delegateFunc);
Jsni.memberset(delegateFunc, "DynamicInvoke", Jsni.function(args => delegateFunc.apply(delegateFunc, args.As <JsArray>())));
Jsni.memberset(delegateFunc, "GetHashCode", Jsni.function(() => lambda.toString().GetHashCode().As <JsObject>()));
Jsni.memberset(delegateFunc, "lambda", lambda);
Jsni.memberset(delegateFunc, "Equals", Jsni.function(x => x != null && lambda == x.member("lambda")));
return(delegateFunc);
}
public static JsFunction CreateDelegate(JsObject thisExpression, JsTypeFunction delegateType, JsFunction lambda, string delegateKey = null)
{
if (delegateKey != null)
{
if (thisExpression[delegateKey])
{
return(thisExpression[delegateKey].As <JsFunction>());
}
}
else
{
if (lambda.member("$delegate") != null)
{
return(lambda.member("$delegate").As <JsFunction>());
}
}
JsFunction delegateFunc = null;
delegateFunc = Jsni.function(() =>
{
return(lambda.apply(delegateFunc.As <Delegate>().Target.As <JsObject>(), Jsni.arguments().As <JsArray>()));
});
delegateFunc.prototype = Jsni.@new(delegateType);
Jsni.type <object>().TypeInitializer.invoke(delegateFunc, delegateFunc);
Jsni.type <Delegate>().TypeInitializer.invoke(delegateFunc, delegateFunc);
Jsni.type <MulticastDelegate>().TypeInitializer.invoke(delegateFunc, delegateFunc);
delegateType.TypeInitializer.invoke(delegateFunc, delegateFunc);
Jsni.invoke(Jsni.member(Jsni.member(Jsni.type <MulticastDelegate>().prototype, "$ctor"), "call"), delegateFunc, thisExpression, new[] { delegateFunc }.As <JsArray>());
Jsni.memberset(delegateFunc, SpecialNames.TypeField, delegateType);
if (delegateKey != null)
{
thisExpression[delegateKey] = delegateFunc;
}
else
{
lambda.memberset("$delegate", delegateFunc);
}
return(delegateFunc);
}
