Hello,
This is a minor remark, and it does affect the functioning of JsInterop, as
far as I experienced, but may be worth looking into by GWT folks. I have
the following Js object that I am wrapping in Java:
var Hotel = function() {
this.guests = [];
};
Hotel.prototype = {
addGuest : function(guest) {
this.guests.push(guest);
},
getGuestCount: function(){
return this.guests.length;
}
}
@JsType(isNative=true, namespace=GLOBAL)
public class Hotel {
@JsMethod
public native final int getGuestCount();
@JsMethod
public native final void addGuest(Guest guest);
}
I pass a Guest object to the addGuest Method
@JsType(isNative=true, namespace=GLOBAL, name="Object")
public class Guest {
public int guestId;
public String firstName;
public String lastName;
public String roomNumber;
}
public class Test implements EntryPoint {
String uninitializedString;
public void onModuleLoad() {
Hotel hotel = new Hotel();
Guest guest = new Guest();
guest.firstName= "test";
//passed object is guest = {firstName: "test"}
hotel.addGuest(guest);
Guest guest2 = new Guest();
guest2.firstName = "test";
guest2.lastName = uninitializedString;
//passed object is guest = {firstName: "test", lastName: undefined},
should also be guest = {firstName: "test"}
hotel.addGuest(guest2);
}
}
In short, if you are assigning an uninitialized variable to an
uninitialized Object field, the field will not be ignored anymore by
JsInterop, and will be transpiled as undefined, although it is still
uninitialized. This happens often with the builder pattern.
--
You received this message because you are subscribed to the Google Groups "GWT
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/google-web-toolkit.
For more options, visit https://groups.google.com/d/optout.
