46 lines
1.2 KiB
C#
46 lines
1.2 KiB
C#
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using System.Linq.Expressions;
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namespace NzbDrone.Common.EnsureThat
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{
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internal static class ExpressionExtensions
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{
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internal static string ToPath(this MemberExpression e)
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{
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var path = "";
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var parent = e.Expression as MemberExpression;
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if (parent != null)
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path = parent.ToPath() + ".";
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return path + e.Member.Name;
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}
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internal static MemberExpression GetRightMostMember(this Expression e)
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{
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if (e is LambdaExpression)
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return GetRightMostMember(((LambdaExpression)e).Body);
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if (e is MemberExpression)
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return (MemberExpression)e;
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if (e is MethodCallExpression)
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{
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var callExpression = (MethodCallExpression)e;
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if (callExpression.Object is MethodCallExpression || callExpression.Object is MemberExpression)
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return GetRightMostMember(callExpression.Object);
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var member = callExpression.Arguments.Count > 0 ? callExpression.Arguments[0] : callExpression.Object;
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return GetRightMostMember(member);
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}
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if (e is UnaryExpression)
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{
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var unaryExpression = (UnaryExpression)e;
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return GetRightMostMember(unaryExpression.Operand);
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}
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return null;
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}
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}
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}
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