To be honest, I don't know what the *problem* is, but there should be a
simple workaround:
private final native <B> Promise<B> thenJava(Thenable<B> thenable) /*-{
return this.then(function() {
then: function(arg) {
return @::staticThen(*)(thenable, arg);
}
});
}-*/;
private static <B> Promise<B> staticThen(Thenable<B> thenable, B arg) {
return thenable.then(arg);
}
(or something along those lines)
BTW, you might want to add a bunch of calls to $entry() here and there.
On Thursday, February 26, 2015 at 1:18:01 PM UTC+1, Mickaël Leduque wrote:
>
> Hi,
>
> We switched to gwt 2.7 and now i have a compilation failure
>
> [ERROR] JSNI method
> JsPromise.thenJava(Lcom/codenvy/api/promises/client/Thenable;)Lcom/codenvy/api/promises/client/Promise;
>
> attempts to call method
> Thenable.then(Ljava/lang/Object;)Lcom/codenvy/api/promises/client/Thenable;
> on an instance which might be a JavaScriptObject. Such a method call is
> only allowed in pure Java (non-JSNI) functions.
>
> The code in question does
>
> @Override
> public final <B> Promise<B> then(final Thenable<B> thenable) {
> if (thenable instanceof JavaScriptObject) {
> return this.thenJs((JavaScriptObject)thenable);
> } else {
> return this.thenJava(thenable);
> }
> }
>
> private final native <B> Promise<B> thenJs(JavaScriptObject thenable)
> /*-{
> return this.then(thenable);
> }-*/;
>
> private final native <B> Promise<B> thenJava(Thenable<B> thenable) /*-{
> return this.then(function() {
> then: function(arg) {
> return
> [email protected]::then(*)(arg);
> }
> });
> }-*/;
>
> And there's a JSO implementation of the Thenale interface.
>
> I've seen for example
> https://code.google.com/p/google-web-toolkit/issues/detail?id=9008, but
> that's not the case as ThenJava will never be called with a JavaScripObject
> (unless I misunderstood).
>
> So what's the problem?
>
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