53 lines
1.7 KiB
C#
53 lines
1.7 KiB
C#
namespace Tnb.Common.Utils
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{
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public class PropertyNotNullChecker<T>
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{
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private static readonly Dictionary<Type, Func<T, bool>> Cache = new Dictionary<Type, Func<T, bool>>();
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public static bool CheckAllPropertiesNotNull(T obj)
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{
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//Type type = typeof(T);
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//// 检查缓存中是否存在类型的检查方法
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//if (Cache.TryGetValue(type, out var checkFunc))
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//{
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// return checkFunc(obj);
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//}
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//var properties = type.GetProperties();
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//// 创建表达式树的参数
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//var objParam = Expression.Parameter(type, "obj");
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//var propertyNotNullExpressions = new List<Expression>();
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//foreach (var property in properties)
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//{
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// // 创建访问属性的表达式
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// var propertyAccess = Expression.Property(objParam, property);
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// // 创建检查属性非空的表达式
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// var notNullExpression = Expression.NotEqual(propertyAccess, Expression.Constant(null));
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// propertyNotNullExpressions.Add(notNullExpression);
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//}
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//// 创建所有属性非空的表达式
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//var allPropertiesNotNullExpression = Expression.AndAlso(propertyNotNullExpressions);
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//// 创建Lambda表达式
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//var lambda = Expression.Lambda<Func<T, bool>>(allPropertiesNotNullExpression, objParam);
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//// 编译表达式并执行
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//var func = lambda.Compile();
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//// 将类型和检查方法添加到缓存中
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//Cache[type] = func;
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//return func(obj);
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return false;
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}
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}
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}
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