public static bool MatchRightToLeft(VisualElement element, StyleComplexSelector complexSelector, Action <VisualElement, MatchResultInfo> processResult)
{
VisualElement visualElement = element;
int i = complexSelector.selectors.Length - 1;
VisualElement visualElement2 = null;
int num = -1;
bool result;
while (i >= 0)
{
bool flag = visualElement == null;
if (flag)
{
break;
}
MatchResultInfo matchResultInfo = StyleSelectorHelper.MatchesSelector(visualElement, complexSelector.selectors[i]);
processResult(visualElement, matchResultInfo);
bool flag2 = !matchResultInfo.success;
if (flag2)
{
bool flag3 = i < complexSelector.selectors.Length - 1 && complexSelector.selectors[i + 1].previousRelationship == StyleSelectorRelationship.Descendent;
if (flag3)
{
visualElement = visualElement.parent;
}
else
{
bool flag4 = visualElement2 != null;
if (!flag4)
{
break;
}
visualElement = visualElement2;
i = num;
}
}
else
{
bool flag5 = i < complexSelector.selectors.Length - 1 && complexSelector.selectors[i + 1].previousRelationship == StyleSelectorRelationship.Descendent;
if (flag5)
{
visualElement2 = visualElement.parent;
num = i;
}
bool flag6 = --i < 0;
if (flag6)
{
result = true;
return(result);
}
visualElement = visualElement.parent;
}
}
result = false;
return(result);
}
private static void FastLookup(IDictionary <string, StyleComplexSelector> table, List <SelectorMatchRecord> matchedSelectors, StyleMatchingContext context, string input, ref SelectorMatchRecord record)
{
StyleComplexSelector nextInTable;
bool flag = table.TryGetValue(input, out nextInTable);
if (flag)
{
while (nextInTable != null)
{
bool flag2 = StyleSelectorHelper.MatchRightToLeft(context.currentElement, nextInTable, context.processResult);
if (flag2)
{
record.complexSelector = nextInTable;
matchedSelectors.Add(record);
}
nextInTable = nextInTable.nextInTable;
}
}
}
public static void FindMatches(StyleMatchingContext context, List <SelectorMatchRecord> matchedSelectors)
{
Debug.Assert(matchedSelectors.Count == 0);
Debug.Assert(context.currentElement != null, "context.currentElement != null");
VisualElement currentElement = context.currentElement;
for (int i = 0; i < context.styleSheetStack.Count; i++)
{
StyleSheet styleSheet = context.styleSheetStack[i];
SelectorMatchRecord selectorMatchRecord = new SelectorMatchRecord(styleSheet, i);
StyleSelectorHelper.FastLookup(styleSheet.orderedTypeSelectors, matchedSelectors, context, currentElement.typeName, ref selectorMatchRecord);
StyleSelectorHelper.FastLookup(styleSheet.orderedTypeSelectors, matchedSelectors, context, "*", ref selectorMatchRecord);
bool flag = !string.IsNullOrEmpty(currentElement.name);
if (flag)
{
StyleSelectorHelper.FastLookup(styleSheet.orderedNameSelectors, matchedSelectors, context, currentElement.name, ref selectorMatchRecord);
}
foreach (string current in currentElement.GetClassesForIteration())
{
StyleSelectorHelper.FastLookup(styleSheet.orderedClassSelectors, matchedSelectors, context, current, ref selectorMatchRecord);
}
}
}