32 lines
959 B
C#
32 lines
959 B
C#
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using System.Linq.Expressions;
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namespace System.Web.Util {
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internal sealed class OrderingMethodFinder : ExpressionVisitor {
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private bool isTopLevelMethodCall = true;
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private bool OrderingMethodFound {
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get;
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set;
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}
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protected override Expression VisitMethodCall(MethodCallExpression node) {
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if (isTopLevelMethodCall && QueryableUtility.IsOrderingMethod(node)) {
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OrderingMethodFound = true;
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}
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isTopLevelMethodCall = false;
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Expression result = base.VisitMethodCall(node);
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isTopLevelMethodCall = true;
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return result;
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}
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internal static bool OrderMethodExists(Expression expression) {
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OrderingMethodFinder obj = new OrderingMethodFinder();
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obj.OrderingMethodFound = false;
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obj.Visit(expression);
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return obj.OrderingMethodFound;
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}
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}
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}
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