987031 - "Assertion failure: mNamespaceID != kNameSpaceID_None"

Status: VERIFIED FIXED

(Core :: DOM: Core & HTML, defect)

Description

[Jesse Ruderman]

Attachment: testcase

Assertion failure: mNamespaceID != kNameSpaceID_None (This equals method is not transitive, nor symmetric. A key with a namespace of kNamespaceID_None should not be stored in a hashtable.), at content/base/src/nsDocument.h:270

This assertion was added in bug 856140:
https://hg.mozilla.org/mozilla-central/rev/174ec7df74ae

Comment 1

[Jesse Ruderman]

Attachment: stack

Comment 2

[Boris Zbarsky [:bzbarsky]]

Yeah, that just looks broken.  If you need a placeholder "never used by elements" namespace ID, shouldn't you use kNameSpaceID_Unknown?

Comment 3

[William Chen [:wchen]]

Attachment: Use kNamespaceID_Unknown to match any namespace in the web components custom element registry.

(In reply to Boris Zbarsky [:bz] from comment #2)
> Yeah, that just looks broken.  If you need a placeholder "never used by
> elements" namespace ID, shouldn't you use kNameSpaceID_Unknown?

Yeah, that's what I should have used.

Comment 4

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 8396029 [details] [diff] [review]
Use kNamespaceID_Unknown to match any namespace in the web components custom element registry.

Do you want "*" to match everything too?  In that case, you may want kNameSpaceID_Wildcard.

Comment 5

[William Chen [:wchen]]

(In reply to Boris Zbarsky [:bz] from comment #4)
> Comment on attachment 8396029 [details] [diff] [review]
> Do you want "*" to match everything too?  In that case, you may want
> kNameSpaceID_Wildcard.

No, I don't want "*" to match.

https://hg.mozilla.org/integration/mozilla-inbound/rev/3c09159e01da

Comment 6

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/3c09159e01da

Comment 7

[Paul Silaghi, QA [:pauly]]

Reproduced in Nightly 2014-03-24-mozilla-central-debug.
Verified fixed Nightly 31.0a1 2014-03-31-mozilla-central-debug, Win 7 x64.