[LFC][Floats] Floating positioned box is always a float avoider.

[zalan]

it avoids other floats.

[zalan]

Created attachment 401825 [details]
Patch

[Darin Adler]

Comment on attachment 401825 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=401825&action=review

> Source/WebCore/layout/layouttree/LayoutBox.cpp:180
> +    if (isFloatingPositioned() || hasFloatClear())
> +        return true;
> +
> +    return establishesTableFormattingContext() || establishesIndependentFormattingContext() || (establishesBlockFormattingContext() && !establishesInlineFormattingContext());

Would one long chain of conditions separated by || be more logical and readable than a separate if statement? Or are we making a point by using a separate if?

[zalan]

(In reply to Darin Adler from comment #2)
> Comment on attachment 401825 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=401825&action=review
> 
> > Source/WebCore/layout/layouttree/LayoutBox.cpp:180
> > +    if (isFloatingPositioned() || hasFloatClear())
> > +        return true;
> > +
> > +    return establishesTableFormattingContext() || establishesIndependentFormattingContext() || (establishesBlockFormattingContext() && !establishesInlineFormattingContext());
> 
> Would one long chain of conditions separated by || be more logical and
> readable than a separate if statement? Or are we making a point by using a
> separate if?
Yes, I was trying to make dedicated explicit/implicit groups here (whether the reason for the float avoiding behavior is some float related styles such as clear or some other seemingly unrelated reasons like table element etc.)

[EWS]

Committed r263007: <https://trac.webkit.org/changeset/263007>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 401825 [details].

[Radar WebKit Bug Importer]

<rdar://problem/64334402>