1061891 - We can't check whether a nsMainThreadPtrHandle is null

Status: RESOLVED FIXED

(Core :: XPCOM, defect)

Description

[David Teller [:Yoric] - still alive but not very active]

It is quite common to have a `nsMainThreadPtrHolder<someCallbackType>` that we want to dispatch to the main thread iff it is not null. At the moment, doing this is quite clumsy. However, I believe that we could easily add a method `isNull()` that would simplify things.

Comment 1

[David Teller [:Yoric] - still alive but not very active]

Attachment: Making it possible to verify whether a nsMainThreadPtrHandle<T> is null

Comment 2

[David Teller [:Yoric] - still alive but not very active]

Try: https://tbpl.mozilla.org/?tree=Try&rev=82e3df1419ff

Comment 3

[David Teller [:Yoric] - still alive but not very active]

Attachment: Making it possible to verify whether a nsMainThreadPtrHandle<T> is null, v2

I just realized that we can mark this `operator!` as `const`, so I did.

Try: https://tbpl.mozilla.org/?tree=Try&rev=82e3df1419ff

Comment 4

[David Teller [:Yoric] - still alive but not very active]

Try: https://tbpl.mozilla.org/?tree=Try&rev=82e3df1419ff

Comment 5

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/fd23aa1410fb

Comment 6

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/fd23aa1410fb