In this work your doing are there any provisions for determining the current
position in the loop? i.e. is there anything coming after me?
An example from some code I was just fixing up was taking a list of class
names and combining them into a ; delimited string (and erroneously
appending a trailing separator), without knowing the current position, or if
something follows you one has to manually keep track of position to
optionally append a ; rather than just call say 'iterator.hasNext()" inside
the loop.
With the syntax below, it would be nice if a new implicit variable was
available which gave up such info, maybe something like:
StringBuilder sb = new StringBuilder();
for each(String className: myListOfClassNames) {
sb.append(className);
if (each.hasNext()) sb.append(";");
}
with each being a new implicit variable of some mythical Iteration interface
(this might also provide a getIndex() method to identify which iteration of
the loop were in).
Having access to this information is one of the things I miss with the new
enhanced for loops...
On 10/21/07, Neal Gafter <[EMAIL PROTECTED]> wrote:
>
>
> for each(String element: myList) {
> if (element.equals ("foo")) break;
> }
>
> for a static method. I'm working separately on a spec/implementation of
> extension methods, which roughly speaking would allow you to use these forms
> interchangeably. In other words, to take advantage of this you wouldn't have
> to make changes to the Collection interface (interface changes break
> backward compatibility in Java).
>
--
It`s not the tree that forsakes the flower, but the flower that forsakes the
tree
Someday I`ll learn to love these scars - Bye Bye Beautiful
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