Re: Argument scope

From:
Tom Anderson <twic@urchin.earth.li>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 2 Dec 2010 21:39:59 +0000
Message-ID:
<alpine.DEB.1.10.1012022133430.28155@urchin.earth.li>
On Thu, 2 Dec 2010, Stefan Ram wrote:

 Here is an idea for a new scope in Java (could be
 used in other languages as well):

void fill
( final int color
 { final int RED = 1;
   final int GREEN = 2;
   final int BLUE = 3; })
{ /* ... */ }

 Now one can call this as, for example:

fill( GREEN );

 But one does not need to write

fill( Class.GREEN );

 or so anymore.


I'd quite like that. Ages ago, i had the idea of being able to write:

class Paintbucket {
  public static final int GREEN = 1;
  public void fill(int colour) {...}
}

Paintbucket p;
p.fill(.GREEN);
     // ^ leading dot indicates use of receiver scope

Static imports have made both our ideas somewhat redundant, though.

I also want a SmallTalk-inspired 'call this method on the same object as
the last statement' construct, which i'd also do with a leading dot:

BufferedWriter invoiceWriter;
invoiceWriter.writer(total);
..newLine();
..write(tax);
..newLine();

tom

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