Sure.

Kjetil

On Sep 30, 11:46 am, Derek Chen-Becker <dchenbec...@gmail.com> wrote:
> Can you open a ticket on this? Lift uses reflection to locate the methods
> unless you're using a DispatchSnippet (the preferred way to do it), so we
> can probably enumerate all methods on the class and see if there is a method
> with the same name but different args or return types when we fail to locate
> something.
>
> Derek
>
> On Tue, Sep 29, 2009 at 7:03 AM, Kjetil Valstadsve 
> <valstad...@gmail.com>wrote:
>
>
>
>
>
> > Hi, I know I just raved about #liftweb error reporting on Twitter,
> > but... now that I found out what was wrong, I still have a gripe about
> > it. I am very unforgiving on error reporting logic, but most of the
> > time people's error handling is so hopeless that I just throw up my
> > arms and emit some mock Italian. When I bother to post this complaint,
> > it's because I think lift is doing great and I want to help improve
> > it.
>
> > The case occurs when a <lift:Foo.bar> tag fails to match the bar
> > method in Foo. The rendered red box (which is very nice) tells me that
> > the method was not found. However, it would be very handy if it
> > handled the special case of "method found but the signature is wrong".
> > As it is, I got the same message when I definitely had the method, per
> > se. Before I knew it, I was on a quest to find the outdated class
> > file, rebuilding here and there to make sure I had the war file in
> > synch with my code.
>
> > In my case, I hadn't specified the return type, and I was mistakenly
> > using foreach instead of flatMap inside the method, implicitly giving
> > Unit as return type. So lift was completely right, the method could
> > not be found. However, this is siding with the compiler against the
> > human, if you know what I mean. Also, since you cannot overload a
> > method by varying only the return type, it is a pretty safe assumption
> > that the mis-typed method is the one the user meant to use, especially
> > if it takes the correct argument list, too.
>
> > Kjetil

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