Protect m_data when iterating in CachedRawResource::didAddClient

[Alex Christensen]

Protect m_data when iterating in CachedRawResource::didAddClient

[Alex Christensen]

Created attachment 433876 [details]
Patch

[Alex Christensen]

<rdar://problem/80716674>

[Chris Dumez]

Comment on attachment 433876 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=433876&action=review

r=me with optional nit fixes.

> Source/WebCore/loader/cache/CachedRawResource.cpp:170
>              if (m_data) {

We could also just do:
if (auto data = m_data) {

and use data below instead of m_data.

> Source/WebCore/loader/cache/CachedRawResource.cpp:171
> +                auto protectedData = RefPtr { m_data };

instead of adding the protector here.

> Source/WebCore/loader/cache/CachedRawResource.cpp:173
> +                    if (!hasClient(*client))

Better safe than sorry indeed.

I know we like early return in WebKit, but when it's one line life this, I don't feel like it's great.

[Alex Christensen]

Created attachment 433877 [details]
Patch

[EWS]

Committed r280083 (239808@main): <https://commits.webkit.org/239808@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 433877 [details].

[Chris Dumez]

Sadly, it seems this didn't do the trick :( <rdar://82936913>