> On 4 Dec 2017, at 19:20, Stuart Marks <stuart.ma...@oracle.com> wrote:
>
> Hi all,
>
> Please review this small enhancement to add a default method
> Collection.toArray(generator) that takes a function that creates the
> destination array. This is analogous to Stream.toArray(generator).
>
> Bug:
>
> https://bugs.openjdk.java.net/browse/JDK-8060192
>
345 * <p>Suppose {@code x} is a collection known to contain only strings.
346 * The following code can be used to dump the collection into a newly
347 * allocated array of {@code String}:
Make it an API note? (same for toArray(T[])
352 * @implSpec
353 * The default implementation calls the generator function with zero
354 * and then passes the resulting array to {@link #toArray(T[])}.
That’s reasonable. I pondered about being vague and specifying a value in the
range if [0, size()), to allow wiggle room for using 0 or size().
360 * @throws ArrayStoreException if the runtime type of any element in
this
361 * collection is not assignable to the {@linkplain
Class#getComponentType
362 * runtime component type} of array returned by the generator
function
s/of array returned by the generator function/of the generated array/ ?
Paul.
> Webrev:
>
> http://cr.openjdk.java.net/~smarks/reviews/8060192/webrev.0/
>
> Thanks,
>
> s'marks
