700734 - Unnecessary "not derived from nsISupports" warnings for XPCOM pseudo-enums

Status: RESOLVED FIXED

(Core :: XPCOM, defect)

Description

[:Irving Reid (No longer working on Firefox)]

Thunderbird has many IDL definitions of pseudo-enums, basically an IDL interface that only declares a bunch of constants. Because we never create an instance of the IDL object, it doesn't need any of the normal nsISupports infrastructure.

xpcom prints warnings about all of these, like:

warning: interface 'nsMsgPriority' not derived from nsISupports, /Users/ireid/tbird/comm-central/mailnews/base/public/MailNewsTypes2.idl line 52:0
interface nsMsgPriority {
^

Based on a conversation on irc #developers, this warning doesn't add much value and can be removed.

Comment 1

[:Irving Reid (No longer working on Firefox)]

Attachment: Remove 'not derived from nsISupports' warning

Comment 2

[:Irving Reid (No longer working on Firefox)]

I don't have mozilla-central checkin privileges; anyone ready to take this on?

Comment 3

[Boris Zbarsky [:bzbarsky]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/8e7225a8b1cc

Comment 4

[Ed Morley [:emorley]]

https://hg.mozilla.org/mozilla-central/rev/8e7225a8b1cc