Output of expression values <was> Re: Printing of array-valued elements

[Robert Field]

> On Aug 6, 2015, at 1:33 PM, Paul Sandoz <paul.sandoz at oracle.com> wrote:
> 
> 
> On 5 Aug 2015, at 17:09, Robert Field <robert.field at oracle.com> wrote:
> 
>> All good suggestions, thanks, created:
>> 
>> 8133020 <https://bugs.openjdk.java.net/browse/JDK-8133020>
>> JShell API: special printing for arrays
>> 
> 
> Same applies to Collection as well (not sure we can always do the same for Iterable given it might be traversable once only in some rare cases).
> 
> I think there should also be truncation for toString beyond a certain length e.g.:  it could be something like (aligned to the columns for a certain number of rows):
> 
> -> Stream.generate(() -> "A").limit(10000).collect(Collectors.joining(""));
> | String $1 = “AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA…"

Added to bug and Subject changed

> 
> IMO the current output is rather verbose:
> 
> -> new Object()
> |  Expression value is: java.lang.Object at 2812cbfa
> |    assigned to temporary variable $5 of type Object
> 
> It could be (for default verbosity settings):
> 
> -> new Object()
> | Object $5 = java.lang.Object at 2812cbfa
> 
> ?
> 
> Paul.

See UX discussion.

-Robert