1083349 - Cycle collect nsXMLHttpRequest::mBlobSet

Status: RESOLVED DUPLICATE of bug 1113062

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

Description

[Andrew McCreight [:mccr8]]

XHR holds an autoptr to a blob set, which holds a field that is nsTArray<nsRefPtr<FileImpl>>, and FileImpl can sometimes contain fields that need to be cycle collected, so you have to call Traverse() and Unlink() on them, but the FileImpl are not real cycle collected objects.

Comment 1

[Andrew McCreight [:mccr8]]

I'm not sure how that is supposed to work if FileImpl is shared, but maybe that can't happen.

Comment 2

[Andrea Marchesini [:baku]]

At the moment we have CCed FileImpl just for ArchiveReader (as far as I remember).
I don't think this is a really issue at the moment and I hope that soon or late FileImpl will not have IsCCed()/Traverse()/Unlink() methods.

Comment 3

[Andrea Marchesini [:baku]]

With 'I hope' I mean bug 1083828.