Implicit 'this' return for void methods

Florian Weimer fweimer at
Fri Mar 28 10:05:59 UTC 2014

On 03/28/2014 05:57 AM, Victor Polischuk wrote:
> Ulf,
> I think that point leading style is something which can be easily mistreat. If we complicate the example:
>     String mySub = myVeryLongNamedString.substring(.indexOf("C"),.indexOf("Q"));
> to something like:
>     String mySub = myVeryLongNamedString.concat("BLAH").substring(.indexOf("C"),.indexOf("Q"));

You can already write

     String mySub = apply(myVeryLongNamedString,
         (s) -> s.substring(s.indexOf("C"), s.indexOf("Q")))

with a helper function like this:

     public static <T, R> R apply(T value, Function<T, R> func) {
	return func.apply(value);

You don't even need to repeat the type.  But the explicit version isn't 
too bad, either:

     String mySub;
         String s = myVeryLongNamedString;
         mySub = s.substring(s.indexOf("C"), s.indexOf("Q"));

So I'm not sure if leading dot expressions are all that helpful.

Florian Weimer / Red Hat Product Security Team

More information about the core-libs-dev mailing list