PurgeMemory.

third_party/WebKit/Source/core/css/StyleRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 34 matching lines @@
 PassRefPtrWillBeRawPtr<CSSRule> StyleRuleBase::createCSSOMWrapper(CSSStyleSheet* parentSheet) const
 {
     return createCSSOMWrapper(parentSheet, 0);
 }
 
 PassRefPtrWillBeRawPtr<CSSRule> StyleRuleBase::createCSSOMWrapper(CSSRule* parentRule) const
 {
     return createCSSOMWrapper(0, parentRule);
 }
 
+void StyleRuleBase::purgeMemory()
+{
+    switch (type()) {
+    case Charset:
+        toStyleRuleCharset(this)->purgeMemory();
+        return;
+    case Style:
+        toStyleRule(this)->purgeMemory();
+        return;
+    case Page:
+        toStyleRulePage(this)->purgeMemory();
+        return;
+    case FontFace:
+        toStyleRuleFontFace(this)->purgeMemory();
+        return;
+    case Media:
+        toStyleRuleMedia(this)->purgeMemory();
+        return;
+    case Supports:
+        toStyleRuleSupports(this)->purgeMemory();
+        return;
+    case Import:
+        toStyleRuleImport(this)->purgeMemory();
+        return;
+    case Keyframes:
+        toStyleRuleKeyframes(this)->purgeMemory();
+        return;
+    case Keyframe:
+        toStyleRuleKeyframe(this)->purgeMemory();
+        return;
+    case Namespace:
+        toStyleRuleNamespace(this)->purgeMemory();
+        return;
+    case Viewport:
+        toStyleRuleViewport(this)->purgeMemory();
+        return;
+    }
+    ASSERT_NOT_REACHED();
+}
+
 DEFINE_TRACE(StyleRuleBase)
 {
     switch (type()) {
     case Charset:
         toStyleRuleCharset(this)->traceAfterDispatch(visitor);
         return;
     case Style:
         toStyleRule(this)->traceAfterDispatch(visitor);
         return;
     case Page:
@@ skipping 203 matching lines @@
 {
 }
 
 MutableStylePropertySet& StyleRule::mutableProperties()
 {
     if (!m_properties->isMutable())
         m_properties = m_properties->mutableCopy();
     return *toMutableStylePropertySet(m_properties.get());
 }
 
+
+void StyleRule::purgeMemory()
+{
+    m_properties->purgeMemory();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRule)
 {
     visitor->trace(m_properties);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 StyleRulePage::StyleRulePage(CSSSelectorList selectorList, PassRefPtrWillBeRawPtr<StylePropertySet> properties)
     : StyleRuleBase(Page)
     , m_properties(properties)
     , m_selectorList(std::move(selectorList))
@@ skipping 11 matching lines @@
 {
 }
 
 MutableStylePropertySet& StyleRulePage::mutableProperties()
 {
     if (!m_properties->isMutable())
         m_properties = m_properties->mutableCopy();
     return *toMutableStylePropertySet(m_properties.get());
 }
 
+void StyleRulePage::purgeMemory()
+{
+    m_properties->purgeMemory();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRulePage)
 {
     visitor->trace(m_properties);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 StyleRuleFontFace::StyleRuleFontFace(PassRefPtrWillBeRawPtr<StylePropertySet> properties)
     : StyleRuleBase(FontFace)
     , m_properties(properties)
 {
 }
 
 StyleRuleFontFace::StyleRuleFontFace(const StyleRuleFontFace& o)
     : StyleRuleBase(o)
     , m_properties(o.m_properties->mutableCopy())
 {
 }
 
 StyleRuleFontFace::~StyleRuleFontFace()
 {
 }
 
 MutableStylePropertySet& StyleRuleFontFace::mutableProperties()
 {
     if (!m_properties->isMutable())
         m_properties = m_properties->mutableCopy();
     return *toMutableStylePropertySet(m_properties);
 }
 
+void StyleRuleFontFace::purgeMemory()
+{
+    m_properties->purgeMemory();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRuleFontFace)
 {
     visitor->trace(m_properties);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 StyleRuleGroup::StyleRuleGroup(Type type, WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase>>& adoptRule)
     : StyleRuleBase(type)
 {
     m_childRules.swap(adoptRule);
@@ skipping 10 matching lines @@
 void StyleRuleGroup::wrapperInsertRule(unsigned index, PassRefPtrWillBeRawPtr<StyleRuleBase> rule)
 {
     m_childRules.insert(index, rule);
 }
 
 void StyleRuleGroup::wrapperRemoveRule(unsigned index)
 {
     m_childRules.remove(index);
 }
 
+void StyleRuleGroup::purgeMemory()
+{
+    for (StyleRuleBase* childRule : m_childRules)
+        childRule->purgeMemory();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRuleGroup)
 {
     visitor->trace(m_childRules);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 StyleRuleMedia::StyleRuleMedia(PassRefPtrWillBeRawPtr<MediaQuerySet> media, WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase>>& adoptRules)
     : StyleRuleGroup(Media, adoptRules)
     , m_mediaQueries(media)
 {
@@ skipping 42 matching lines @@
 {
 }
 
 MutableStylePropertySet& StyleRuleViewport::mutableProperties()
 {
     if (!m_properties->isMutable())
         m_properties = m_properties->mutableCopy();
     return *toMutableStylePropertySet(m_properties);
 }
 
+void StyleRuleViewport::purgeMemory()
+{
+    m_properties->purgeMemory();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRuleViewport)
 {
     visitor->trace(m_properties);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 } // namespace blink