void ProcessMatchedRules(VisualElement element, List <SelectorMatchRecord> matchingSelectors)
{
matchingSelectors.Sort(SelectorMatchRecord.Compare);
Int64 matchingRulesHash = element.fullTypeName.GetHashCode();
// Let current DPI contribute to the hash so cache is invalidated when this changes
matchingRulesHash = (matchingRulesHash * 397) ^ currentPixelsPerPoint.GetHashCode();
foreach (var record in matchingSelectors)
{
StyleRule rule = record.complexSelector.rule;
int specificity = record.complexSelector.specificity;
matchingRulesHash = (matchingRulesHash * 397) ^ rule.GetHashCode();
matchingRulesHash = (matchingRulesHash * 397) ^ specificity;
}
VisualElementStylesData resolvedStyles;
if (StyleCache.TryGetValue(matchingRulesHash, out resolvedStyles))
{
element.SetSharedStyles(resolvedStyles);
}
else
{
resolvedStyles = new VisualElementStylesData(isShared: true);
foreach (var record in matchingSelectors)
{
StylePropertyID[] propertyIDs = StyleSheetCache.GetPropertyIDs(record.sheet, record.complexSelector.ruleIndex);
resolvedStyles.ApplyRule(record.sheet, record.complexSelector.specificity, record.complexSelector.rule, propertyIDs);
}
resolvedStyles.ApplyLayoutValues();
StyleCache.SetValue(matchingRulesHash, resolvedStyles);
element.SetSharedStyles(resolvedStyles);
}
}