1327306 - JSON View: "Expanded" array with zero elements doesn't display any value

Status: RESOLVED DUPLICATE of bug 1370443

(DevTools :: JSON Viewer, defect)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open url  https://hg.mozilla.org/mozilla-central/json-pushes?changeset=f8bdceb55c9d&full=1
2. Look at any line with word "tags"

AR:  Objects named "tags" on the page doen't show values (any expanded array of 0 elements does so)
ER:  Either X or Y
 X) Empty array should always display "[]" or "[0]" (removed in bug 1244916) after its name
 Y) Empty array should always display arrow on the left side to indicate its state (expanded/closed)

Notes:
1) X can be fixed in 2 ways, I guess:
  (a) Disallow "expanding" of empty array
  (b) Work around by adding exception in the patch from bug 1244912 (i.e. always show summary "[]")
2) Probably empty objects have the same bug (summary "{}" disappears) - should be checked
3) This bug became visible after bug 1244912, thus blocking. Feel free to edit. Pushlog:
> https://hg.mozilla.org/integration/fx-team/pushloghtml?fromchange=40ae8489939e21be81751a5e241f6ab7e2b4d9a2&tochange=c96ec660af96a187b62c5dd5f9bce62c0f2ffeb6

Comment 1

[Oriol Brufau [:Oriol]]

This is basically what I fixed in bug 1370443.

Now the behavior is X.b

And yes, {} and null had the same problem, all fixed.