1562463 - Logged extended ES6 class instances display parents class name

Status: UNCONFIRMED

(DevTools :: Console, defect, P3)

Description

[709922234]

Attachment: Screen Shot 2019-06-30 at 17.45.55.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

1.open WebConsole
2.input class A extends URLSearchParams {}; new A

Actual results:

show A{}

Expected results:

show URLSearchParams {}

Comment 1

[709922234]

Attachment: Chrome result

Chrome WebConsole

Comment 2

[Nicolas Chevobbe [:nchevobbe][PTO - back October 26]]

There's 2 issue here.
The first one is not having the class name for logged instances, which is Bug 1526688.
The second one is about extended classes that show the name of the parent class, which we should fix here.

Comment 4

[cob.bzmoz]

Both of the problems mentioned in comment 2 have the same root cause: the inspector only attempts to display the native (i.e. SpiderMonkey) JSClass of any debugged object. Fixing that problem will resolve both this and Bug 1526688 together.