1926075 - Console.log of successive different symbols combines output when it should not

Status: RESOLVED FIXED

(DevTools :: Console, defect)

Description

[conartist6]

Steps to reproduce:

console.log(Symbol.for('foo'))
console.log(Symbol.for('bar'))

Actual results:

The console output is:

Symbol("foo") (2)

Note that the browser has decided to consolidate these values as identical despite the fact that they are not.

Also I cannot reproduce the issue when simply pasting the two console.logs into the REPL, they actually have to be running in a script file. JSFiddle suffices: https://jsfiddle.net/Ldmqsvc8/

Expected results:

Symbol("foo")
Symbol("bar")

Comment 1

[conartist6]

Symbol.for('foo') vs Symbol('foo') appears to be irrelevant in reproducing the issue.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'DevTools::Console' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Nicolas Chevobbe [:nchevobbe]]

Attachment: Bug 1926075 - [devtools] Don't repeat Symbols with different names in console. r=#devtools-reviewers.

Comment 4

[Nicolas Chevobbe [:nchevobbe]]

Thanks for the report. I was able to reproduce it easily.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/298caae11e52
[devtools] Don't repeat Symbols with different names in console. r=devtools-reviewers,bomsy.

Comment 6

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/298caae11e52

Comment 7

[conartist6]

Thank you very much for your prompt triage and fix!