inline bool ElementRuleCollector::ruleMatches(const RuleData& ruleData, const ContainerNode* scope, PseudoId& dynamicPseudo, SelectorChecker::BehaviorAtBoundary behaviorAtBoundary)
{
// They can't match because the fast path uses a pool of tag/class/ids, collected from
// elements in that tree and those will never match the host, since it's in a different pool.
// So when adding scoped rules to RuleSet, RuleCanUseFastCheckSelector is not used.
if (ruleData.hasFastCheckableSelector()) {
// We know this selector does not include any pseudo elements.
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO)
return false;
// We know a sufficiently simple single part selector matches simply because we found it from the rule hash.
// This is limited to HTML only so we don't need to check the namespace.
ASSERT(m_context.element());
if (ruleData.hasRightmostSelectorMatchingHTMLBasedOnRuleHash() && m_context.element()->isHTMLElement()) {
if (!ruleData.hasMultipartSelector())
return true;
}
if (ruleData.selector()->m_match == CSSSelector::Tag && !SelectorChecker::tagMatches(*m_context.element(), ruleData.selector()->tagQName()))
return false;
SelectorCheckerFastPath selectorCheckerFastPath(ruleData.selector(), *m_context.element());
if (!selectorCheckerFastPath.matchesRightmostAttributeSelector())
return false;
return selectorCheckerFastPath.matches();
}
// Slow path.
SelectorChecker selectorChecker(m_context.element()->document(), m_mode);
SelectorChecker::SelectorCheckingContext context(ruleData.selector(), m_context.element(), SelectorChecker::VisitedMatchEnabled);
context.elementStyle = m_style.get();
context.scope = scope;
context.pseudoId = m_pseudoStyleRequest.pseudoId;
context.scrollbar = m_pseudoStyleRequest.scrollbar;
context.scrollbarPart = m_pseudoStyleRequest.scrollbarPart;
context.behaviorAtBoundary = behaviorAtBoundary;
SelectorChecker::Match match = selectorChecker.match(context, dynamicPseudo, DOMSiblingTraversalStrategy());
if (match != SelectorChecker::SelectorMatches)
return false;
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO && m_pseudoStyleRequest.pseudoId != dynamicPseudo)
return false;
return true;
}
inline bool ElementRuleCollector::ruleMatches(const RuleData& ruleData, const ContainerNode* scope, PseudoId& dynamicPseudo)
{
const StyleResolver::State& state = m_state;
if (ruleData.hasFastCheckableSelector()) {
// We know this selector does not include any pseudo elements.
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO)
return false;
// We know a sufficiently simple single part selector matches simply because we found it from the rule hash.
// This is limited to HTML only so we don't need to check the namespace.
if (ruleData.hasRightmostSelectorMatchingHTMLBasedOnRuleHash() && state.element()->isHTMLElement()) {
if (!ruleData.hasMultipartSelector())
return true;
}
if (ruleData.selector()->m_match == CSSSelector::Tag && !SelectorChecker::tagMatches(state.element(), ruleData.selector()->tagQName()))
return false;
SelectorCheckerFastPath selectorCheckerFastPath(ruleData.selector(), state.element());
if (!selectorCheckerFastPath.matchesRightmostAttributeSelector())
return false;
return selectorCheckerFastPath.matches();
}
// Slow path.
SelectorChecker selectorChecker(document(), m_mode);
SelectorChecker::SelectorCheckingContext context(ruleData.selector(), state.element(), SelectorChecker::VisitedMatchEnabled);
context.elementStyle = state.style();
context.scope = scope;
context.pseudoId = m_pseudoStyleRequest.pseudoId;
context.scrollbar = m_pseudoStyleRequest.scrollbar;
context.scrollbarPart = m_pseudoStyleRequest.scrollbarPart;
context.behaviorAtBoundary = m_behaviorAtBoundary;
SelectorChecker::Match match = selectorChecker.match(context, dynamicPseudo);
if (match != SelectorChecker::SelectorMatches)
return false;
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO && m_pseudoStyleRequest.pseudoId != dynamicPseudo)
return false;
return true;
}
inline bool ElementRuleCollector::ruleMatches(const RuleData& ruleData, PseudoId& dynamicPseudo)
{
bool fastCheckableSelector = ruleData.hasFastCheckableSelector();
if (fastCheckableSelector) {
// We know this selector does not include any pseudo elements.
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO)
return false;
// We know a sufficiently simple single part selector matches simply because we found it from the rule hash.
// This is limited to HTML only so we don't need to check the namespace.
if (ruleData.hasRightmostSelectorMatchingHTMLBasedOnRuleHash() && m_element.isHTMLElement()) {
if (!ruleData.hasMultipartSelector())
return true;
}
}
#if ENABLE(CSS_SELECTOR_JIT)
void* compiledSelectorChecker = ruleData.compiledSelectorCodeRef().code().executableAddress();
if (!compiledSelectorChecker && ruleData.compilationStatus() == SelectorCompilationStatus::NotCompiled) {
JSC::VM* vm = m_element.document().scriptExecutionContext()->vm();
SelectorCompilationStatus compilationStatus;
JSC::MacroAssemblerCodeRef compiledSelectorCodeRef;
compilationStatus = SelectorCompiler::compileSelector(ruleData.selector(), vm, SelectorCompiler::SelectorContext::RuleCollector, compiledSelectorCodeRef);
ruleData.setCompiledSelector(compilationStatus, compiledSelectorCodeRef);
compiledSelectorChecker = ruleData.compiledSelectorCodeRef().code().executableAddress();
}
if (compiledSelectorChecker) {
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO)
return false;
if (ruleData.compilationStatus() == SelectorCompilationStatus::SimpleSelectorChecker) {
SelectorCompiler::SimpleSelectorChecker selectorChecker = SelectorCompiler::simpleSelectorCheckerFunction(compiledSelectorChecker, ruleData.compilationStatus());
return selectorChecker(&m_element);
}
ASSERT(ruleData.compilationStatus() == SelectorCompilationStatus::SelectorCheckerWithCheckingContext);
SelectorCompiler::SelectorCheckerWithCheckingContext selectorChecker = SelectorCompiler::selectorCheckerFunctionWithCheckingContext(compiledSelectorChecker, ruleData.compilationStatus());
SelectorCompiler::CheckingContext context;
context.elementStyle = m_style;
context.resolvingMode = m_mode;
return selectorChecker(&m_element, &context);
}
#endif // ENABLE(CSS_SELECTOR_JIT)
if (fastCheckableSelector) {
if (ruleData.selector()->m_match == CSSSelector::Tag && !SelectorChecker::tagMatches(&m_element, ruleData.selector()->tagQName()))
return false;
SelectorCheckerFastPath selectorCheckerFastPath(ruleData.selector(), &m_element);
if (!selectorCheckerFastPath.matchesRightmostAttributeSelector())
return false;
return selectorCheckerFastPath.matches();
}
// Slow path.
SelectorChecker selectorChecker(m_element.document(), m_mode);
SelectorChecker::SelectorCheckingContext context(ruleData.selector(), &m_element, SelectorChecker::VisitedMatchEnabled);
context.elementStyle = m_style;
context.pseudoId = m_pseudoStyleRequest.pseudoId;
context.scrollbar = m_pseudoStyleRequest.scrollbar;
context.scrollbarPart = m_pseudoStyleRequest.scrollbarPart;
if (!selectorChecker.match(context, dynamicPseudo))
return false;
if (m_pseudoStyleRequest.pseudoId != NOPSEUDO && m_pseudoStyleRequest.pseudoId != dynamicPseudo)
return false;
return true;
}