62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/*
|
|
* Copyright (C) 2009-2021 Apple Inc. All right reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "JSCSSRuleList.h"
|
|
|
|
#include "CSSRule.h"
|
|
#include "CSSRuleList.h"
|
|
#include "CSSStyleSheet.h"
|
|
#include "JSCSSRuleCustom.h"
|
|
#include "JSStyleSheetCustom.h"
|
|
|
|
|
|
namespace WebCore {
|
|
using namespace JSC;
|
|
|
|
bool JSCSSRuleListOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, AbstractSlotVisitor& visitor, const char** reason)
|
|
{
|
|
JSCSSRuleList* jsCSSRuleList = jsCast<JSCSSRuleList*>(handle.slot()->asCell());
|
|
if (!jsCSSRuleList->hasCustomProperties(jsCSSRuleList->vm()))
|
|
return false;
|
|
|
|
if (CSSStyleSheet* styleSheet = jsCSSRuleList->wrapped().styleSheet()) {
|
|
if (UNLIKELY(reason))
|
|
*reason = "CSSStyleSheet is opaque root";
|
|
|
|
return visitor.containsOpaqueRoot(root(styleSheet));
|
|
}
|
|
|
|
if (CSSRule* cssRule = jsCSSRuleList->wrapped().item(0)) {
|
|
if (UNLIKELY(reason))
|
|
*reason = "CSSRule is opaque root";
|
|
|
|
return visitor.containsOpaqueRoot(root(cssRule));
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|