Bug 136774 – Generate toCSSStyleSheet using STYLE_SHEET_TYPE_CASTS

• Component: WebKit Misc.
• Status: RESOLVED FIXED

[Gyuyoung Kim]

As a step to use toFoo, this patch introduces STYLE_SHEET_TYPE_CASTS for toCSSStyleSheet(). This will help to detect wrong type cast. Additonally this patch helps to remove argument type of RefPtr.

[Gyuyoung Kim]

Created attachment 238017 [details]
Patch

[Gyuyoung Kim]

CC'ing Darin.

[Darin Adler]

Comment on attachment 238017 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=238017&action=review

> Source/WebCore/dom/ProcessingInstruction.cpp:225
> -        static_cast<CSSStyleSheet*>(m_sheet.get())->contents().parseString(sheet);
> +        toCSSStyleSheet(m_sheet)->contents().parseString(sheet);

Since we are assuming m_sheet is non-null, it would be better style to write:

    toCSSStyleSheet(*m_sheet)->contents()

This ensures we don't compile in bogus null checks, although it’s possible the compiler is smart enough to not compile them anyway.

> Source/WebCore/dom/ProcessingInstruction.cpp:238
> -        static_cast<CSSStyleSheet*>(m_sheet.get())->contents().checkLoaded();
> +        toCSSStyleSheet(m_sheet)->contents().checkLoaded();

Ditto.

> Source/WebCore/inspector/InspectorCSSAgent.cpp:686
>              StyleSheet* styleSheet = list->item(i);

Should be StyleSheet& instead of StyleSheet*.

[Gyuyoung Kim]

Created attachment 238096 [details]
Patch for landing

[Gyuyoung Kim]

Created attachment 238101 [details]
Patch for landing

[WebKit Commit Bot]

Comment on attachment 238101 [details]
Patch for landing

Clearing flags on attachment: 238101

Committed r173611: <http://trac.webkit.org/changeset/173611>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.