Expression syntax

[Zdenek Tronicek]

Hi Paul,

I am not Neal nor Remi but I will try to answer anyway :).

Braces are not optional here because they distinguish between  
expression and statement lambda:

#int(T) p = #(T t) t.m();  // expression lambda
#int(T) p = #(T t) { return t.m(); }  // expression statement

I think this is a good choice because previous syntax (when the  
closure returns the value of the last expression) was confusing.

Zdenek
-- 
Zdenek Tronicek
FIT CTU in Prague


Cituji Paul Benedict <pbenedict at apache.org>:

> Neal/Remi, perhaps you could give your opinion on this one. To me,
> having well-formatted code to make easy readability is important to
> me. It's very important. I don't find it very readable without the use
> of braces to enclose the lambda function.
>
> Example:
> #int(String) fun = #(String text) text.length();
>
> If braces aren't mandatory, are they validly optional? I would rather write:
> #int(String) fun = #(String text) { text.length(); }
>
> And that could allow my IDE formatters to run their rules based on how
> to handle braces. If someone likes breaking, this can remain possible:
> #int(String) fun = #(String text) {
>    text.length();
> }
>
> If someone likes to inline everything, this could be possible too:
> object.call(a, b, c, #(String text) { text.length(); });
>
> Just to be clear, my focus here is on flexibility to take advantage of
> existing IDE formatting options surrounding braces.
>
> Paul
>