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@@ -16,479 +16,517 @@ namespace Masuit.Tools.Reflection;
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/// </summary>
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/// </summary>
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public static class ReflectionUtil
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public static class ReflectionUtil
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{
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{
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- #region 属性字段设置
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-
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- public static BindingFlags bf = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
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-
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- /// <summary>
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- /// 执行方法
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="methodName">方法名,区分大小写</param>
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- /// <param name="args">方法参数</param>
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- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
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- /// <returns>T类型</returns>
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- public static T InvokeMethod<T>(this object obj, string methodName, object[] args)
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- {
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- return (T)obj.GetType().GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
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- }
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-
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- /// <summary>
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- /// 执行方法
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="methodName">方法名,区分大小写</param>
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- /// <param name="args">方法参数</param>
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- /// <returns>T类型</returns>
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- public static void InvokeMethod(this object obj, string methodName, object[] args)
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- {
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- var type = obj.GetType();
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- type.GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
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- }
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-
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- /// <summary>
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- /// 设置字段
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">字段名</param>
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- /// <param name="value">值</param>
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- public static void SetField<T>(this T obj, string name, object value) where T : class
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- {
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- SetProperty(obj, name, value);
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- }
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-
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- /// <summary>
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- /// 获取字段
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">字段名</param>
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- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
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- /// <returns>T类型</returns>
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- public static T GetField<T>(this object obj, string name)
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- {
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- return GetProperty<T>(obj, name);
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- }
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-
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- /// <summary>
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- /// 获取字段
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">字段名</param>
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- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
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- /// <returns>T类型</returns>
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- public static object GetField(this object obj, string name)
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- {
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- return GetProperty(obj, name);
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- }
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-
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- /// <summary>
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- /// 获取所有的字段信息
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <returns>字段信息</returns>
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- public static FieldInfo[] GetFields(this object obj)
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- {
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- FieldInfo[] fieldInfos = obj.GetType().GetFields(bf);
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- return fieldInfos;
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- }
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-
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- /// <summary>
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- /// 设置属性
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">属性名</param>
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- /// <param name="value">值</param>
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- /// <returns>旧值</returns>
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- public static string SetProperty<T>(this T obj, string name, object value) where T : class
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- {
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- var type = obj.GetType();
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- var parameter = Expression.Parameter(type, "e");
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- var property = Expression.PropertyOrField(parameter, name);
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- var before = Expression.Lambda(property, parameter).Compile().DynamicInvoke(obj);
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- if (value == before)
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- {
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- return value?.ToString();
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- }
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-
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- if (property.Type.IsGenericType && property.Type.GetGenericTypeDefinition() == typeof(Nullable<>))
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- {
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- if (value is IConvertible x && x.TryConvertTo(property.Type.GenericTypeArguments[0], out var v))
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- {
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- type.GetProperty(name)?.SetValue(obj, v);
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- }
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- else
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- {
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- type.GetProperty(name)?.SetValue(obj, value);
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- }
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- }
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- else
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- {
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- var valueExpression = Expression.Parameter(property.Type, "v");
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- var assign = Expression.Assign(property, valueExpression);
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- if (value is IConvertible x && x.TryConvertTo(property.Type, out var v))
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- {
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- Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, v);
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- }
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- else
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- {
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- Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, value);
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- }
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- }
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-
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- return before.ToJsonString();
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- }
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-
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- private static readonly ConcurrentDictionary<string, Delegate> DelegateCache = new();
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-
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- /// <summary>
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- /// 获取属性
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">属性名</param>
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- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
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- /// <returns>T类型</returns>
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- public static T GetProperty<T>(this object obj, string name)
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- {
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- return (T)GetProperty(obj, name);
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- }
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-
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- /// <summary>
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- /// 获取属性
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <param name="name">属性名</param>
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- /// <returns>T类型</returns>
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- public static object GetProperty(this object obj, string name)
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- {
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- var type = obj.GetType();
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- if (DelegateCache.TryGetValue(type.Name + "." + name, out var func))
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- {
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- return func.DynamicInvoke(obj);
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- }
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- var parameter = Expression.Parameter(type, "e");
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- var property = Expression.PropertyOrField(parameter, name);
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- func = Expression.Lambda(property, parameter).Compile();
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- DelegateCache.TryAdd(type.Name + "." + name, func);
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- return func.DynamicInvoke(obj);
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- }
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-
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- /// <summary>
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- /// 获取所有的属性信息
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- /// </summary>
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- /// <param name="obj">反射对象</param>
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- /// <returns>属性信息</returns>
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- public static PropertyInfo[] GetProperties(this object obj)
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- {
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- return obj.GetType().GetProperties(bf);
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- }
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-
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- #endregion 属性字段设置
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-
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- #region 获取Description
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-
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- /// <summary>
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- /// 根据成员信息获取Description信息
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- /// </summary>
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- /// <param name="member">成员信息</param>
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- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
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- public static string GetDescription(this MemberInfo member)
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- {
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- return GetDescription(member, new object[0]);
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- }
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-
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- /// <summary>
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- /// 根据成员信息获取Description信息
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- /// </summary>
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- /// <param name="member">成员信息</param>
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- /// <param name="args">格式化占位对象</param>
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- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
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- public static string GetDescription(this MemberInfo member, params object[] args)
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- {
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- if (member == null)
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- {
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- throw new ArgumentNullException(nameof(member));
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- }
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-
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- var description = member.IsDefined(typeof(DescriptionAttribute), false) ? member.GetAttribute<DescriptionAttribute>().Description : string.Empty;
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- return args.Length > 0 ? string.Format(description, args) : description;
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- }
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-
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- #endregion 获取Description
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-
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- /// <summary>
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- /// 获取对象的Attribute
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- /// </summary>
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- /// <returns></returns>
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- public static T GetAttribute<T>(this ICustomAttributeProvider provider) where T : Attribute
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- {
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- var attributes = provider.GetCustomAttributes(typeof(T), true);
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- return attributes.Length > 0 ? attributes[0] as T : null;
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- }
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-
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- /// <summary>
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- /// 获取对象的Attributes
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- /// </summary>
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- /// <returns></returns>
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- public static IEnumerable<T> GetAttributes<T>(this ICustomAttributeProvider provider) where T : Attribute
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- {
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- return provider.GetCustomAttributes(typeof(T), true).OfType<T>();
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- }
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-
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- #region 资源获取
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-
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- /// <summary>
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- /// 根据资源名称获取图片资源流
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- /// </summary>
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- /// <param name="_"></param>
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- /// <param name="resourceName">资源的名称</param>
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- /// <returns>数据流</returns>
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- public static Stream GetImageResource(this Assembly _, string resourceName)
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- {
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- Assembly asm = Assembly.GetExecutingAssembly();
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- return asm.GetManifestResourceStream(resourceName);
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- }
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-
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- /// <summary>
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- /// 获取程序集资源的文本资源
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- /// </summary>
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- /// <param name="assemblyType">程序集中的某一对象类型</param>
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- /// <param name="resName">资源项名称</param>
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- /// <param name="resourceHolder">资源的根名称。例如,名为“MyResource.en-US.resources”的资源文件的根名称为“MyResource”。</param>
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- public static string GetStringRes(this Type assemblyType, string resName, string resourceHolder)
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- {
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- Assembly thisAssembly = Assembly.GetAssembly(assemblyType);
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- ResourceManager rm = new ResourceManager(resourceHolder, thisAssembly);
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- return rm.GetString(resName);
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- }
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-
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- /// <summary>
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- /// 获取程序集嵌入资源的文本形式
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- /// </summary>
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- /// <param name="assemblyType">程序集中的某一对象类型</param>
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- /// <param name="charset">字符集编码</param>
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- /// <param name="resName">嵌入资源相对路径</param>
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- /// <returns>如没找到该资源则返回空字符</returns>
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- public static string GetManifestString(this Type assemblyType, string charset, string resName)
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- {
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- var asm = Assembly.GetAssembly(assemblyType);
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- using var stream = asm.GetManifestResourceStream(string.Concat(assemblyType.Namespace, ".", resName.Replace("/", ".")));
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- if (stream == null)
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- {
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- return "";
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- }
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-
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- int iLen = (int)stream.Length;
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- byte[] bytes = new byte[iLen];
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- _ = stream.Read(bytes, 0, iLen);
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- return Encoding.GetEncoding(charset).GetString(bytes);
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- }
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-
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- /// <summary>
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- /// 判断指定的类型 <paramref name="this"/> 是否是指定泛型类型的子类型,或实现了指定泛型接口。
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- /// </summary>
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- /// <param name="this">需要测试的类型。</param>
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- /// <param name="type">泛型接口类型,传入 typeof(IXxx<>)</param>
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- /// <returns>如果是泛型接口的子类型,则返回 true,否则返回 false。</returns>
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- public static bool IsImplementsOf(this Type @this, Type type)
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- {
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- if (@this == null) throw new ArgumentNullException(nameof(@this));
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- if (type == null) throw new ArgumentNullException(nameof(type));
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-
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- // 测试接口。
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- var isTheRawGenericType = @this.GetInterfaces().Any(IsTheRawGenericType);
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- if (isTheRawGenericType) return true;
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-
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- // 测试类型。
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- while (@this != null && @this != typeof(object))
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- {
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- isTheRawGenericType = IsTheRawGenericType(@this);
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- if (isTheRawGenericType) return true;
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- @this = @this.BaseType;
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- }
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-
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- // 没有找到任何匹配的接口或类型。
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- return false;
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-
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- // 测试某个类型是否是指定的原始接口。
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- bool IsTheRawGenericType(Type test) => type == (test.IsGenericType ? test.GetGenericTypeDefinition() : test);
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- }
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-
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- #endregion 资源获取
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-
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- #region 创建实例
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-
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- /// <summary>
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- /// 获取默认实例
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- /// </summary>
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- /// <param name="type">类型</param>
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- /// <returns></returns>
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- public static object GetInstance(this Type type)
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- {
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- return GetInstance<TypeToIgnore, object>(type, null);
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- }
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-
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- /// <summary>
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- /// 获取默认实例
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- /// </summary>
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- /// <param name="type">类型</param>
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- /// <returns></returns>
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- public static T GetInstance<T>(this Type type) where T : class, new()
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- {
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- return GetInstance<TypeToIgnore, T>(type, null);
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- }
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-
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- /// <summary>
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- /// 获取默认实例
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- /// </summary>
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- /// <param name="type">类型</param>
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- /// <returns></returns>
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- public static T GetInstance<T>(string type) where T : class, new()
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- {
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- return GetInstance<TypeToIgnore, T>(Type.GetType(type), null);
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- }
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-
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- /// <summary>
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- /// 获取默认实例
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- /// </summary>
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- /// <param name="type">类型</param>
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- /// <returns></returns>
|
|
|
|
- public static object GetInstance(string type)
|
|
|
|
- {
|
|
|
|
- return GetInstance<TypeToIgnore, object>(Type.GetType(type), null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取一个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg, T>(this Type type, TArg argument) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg, TypeToIgnore, T>(type, argument, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取一个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg, T>(string type, TArg argument) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg, TypeToIgnore, T>(Type.GetType(type), argument, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取2个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, T>(this Type type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg1, TArg2, TypeToIgnore, T>(type, argument1, argument2, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取2个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, T>(string type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg1, TArg2, TypeToIgnore, T>(Type.GetType(type), argument1, argument2, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取3个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <param name="argument3">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, TArg3, T>(this Type type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(type, argument1, argument2, argument3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取3个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <param name="argument3">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, TArg3, T>(string type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(Type.GetType(type), argument1, argument2, argument3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private class TypeToIgnore
|
|
|
|
- {
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private static class InstanceCreationFactory<TArg1, TArg2, TArg3, TObject> where TObject : class, new()
|
|
|
|
- {
|
|
|
|
- private static readonly Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>> InstanceCreationMethods = new();
|
|
|
|
-
|
|
|
|
- public static TObject CreateInstanceOf(Type type, TArg1 arg1, TArg2 arg2, TArg3 arg3)
|
|
|
|
- {
|
|
|
|
- CacheInstanceCreationMethodIfRequired(type);
|
|
|
|
- return InstanceCreationMethods[type](arg1, arg2, arg3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private static void CacheInstanceCreationMethodIfRequired(Type type)
|
|
|
|
- {
|
|
|
|
- if (InstanceCreationMethods.ContainsKey(type))
|
|
|
|
- {
|
|
|
|
- return;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- var argumentTypes = new[]
|
|
|
|
- {
|
|
|
|
- typeof(TArg1),
|
|
|
|
- typeof(TArg2),
|
|
|
|
- typeof(TArg3)
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- Type[] constructorArgumentTypes = argumentTypes.Where(t => t != typeof(TypeToIgnore)).ToArray();
|
|
|
|
- var constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, CallingConventions.HasThis, constructorArgumentTypes, []);
|
|
|
|
- var lamdaParameterExpressions = new[]
|
|
|
|
- {
|
|
|
|
- Expression.Parameter(typeof(TArg1), "param1"),
|
|
|
|
- Expression.Parameter(typeof(TArg2), "param2"),
|
|
|
|
- Expression.Parameter(typeof(TArg3), "param3")
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- var constructorParameterExpressions = lamdaParameterExpressions.Take(constructorArgumentTypes.Length).ToArray();
|
|
|
|
- var constructorCallExpression = Expression.New(constructor, constructorParameterExpressions);
|
|
|
|
- InstanceCreationMethods[type] = Expression.Lambda<Func<TArg1, TArg2, TArg3, TObject>>(constructorCallExpression, lamdaParameterExpressions).Compile();
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #endregion 创建实例
|
|
|
|
-}
|
|
|
|
|
|
+ #region 属性字段设置
|
|
|
|
+
|
|
|
|
+ public static BindingFlags bf = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 执行方法
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
+ /// <param name="args">方法参数</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T InvokeMethod<T>(this object obj, string methodName, object[] args)
|
|
|
|
+ {
|
|
|
|
+ return (T)obj.GetType().GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 执行方法
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
+ /// <param name="args">方法参数</param>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static void InvokeMethod(this object obj, string methodName, object[] args)
|
|
|
|
+ {
|
|
|
|
+ var type = obj.GetType();
|
|
|
|
+ type.GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 设置字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <param name="value">值</param>
|
|
|
|
+ public static void SetField<T>(this T obj, string name, object value) where T : class
|
|
|
|
+ {
|
|
|
|
+ SetProperty(obj, name, value);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T GetField<T>(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return GetProperty<T>(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static object GetField(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return GetProperty(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取所有的字段信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <returns>字段信息</returns>
|
|
|
|
+ public static FieldInfo[] GetFields(this object obj)
|
|
|
|
+ {
|
|
|
|
+ FieldInfo[] fieldInfos = obj.GetType().GetFields(bf);
|
|
|
|
+ return fieldInfos;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 设置属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <param name="value">值</param>
|
|
|
|
+ /// <returns>旧值</returns>
|
|
|
|
+ public static string SetProperty<T>(this T obj, string name, object value) where T : class
|
|
|
|
+ {
|
|
|
|
+ var type = obj.GetType();
|
|
|
|
+ var parameter = Expression.Parameter(type, "e");
|
|
|
|
+ var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
+ var before = Expression.Lambda(property, parameter).Compile().DynamicInvoke(obj);
|
|
|
|
+ if (value == before)
|
|
|
|
+ {
|
|
|
|
+ return value?.ToString();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (property.Type.IsGenericType && property.Type.GetGenericTypeDefinition() == typeof(Nullable<>))
|
|
|
|
+ {
|
|
|
|
+ if (value is IConvertible x && x.TryConvertTo(property.Type.GenericTypeArguments[0], out var v))
|
|
|
|
+ {
|
|
|
|
+ type.GetProperty(name)?.SetValue(obj, v);
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ type.GetProperty(name)?.SetValue(obj, value);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ var valueExpression = Expression.Parameter(property.Type, "v");
|
|
|
|
+ var assign = Expression.Assign(property, valueExpression);
|
|
|
|
+ if (value is IConvertible x && x.TryConvertTo(property.Type, out var v))
|
|
|
|
+ {
|
|
|
|
+ Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, v);
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, value);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return before.ToJsonString();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static readonly ConcurrentDictionary<string, Delegate> DelegateCache = new();
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T GetProperty<T>(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return (T)GetProperty(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static object GetProperty(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ var type = obj.GetType();
|
|
|
|
+ if (DelegateCache.TryGetValue(type.Name + "." + name, out var func))
|
|
|
|
+ {
|
|
|
|
+ return func.DynamicInvoke(obj);
|
|
|
|
+ }
|
|
|
|
+ var parameter = Expression.Parameter(type, "e");
|
|
|
|
+ var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
+ func = Expression.Lambda(property, parameter).Compile();
|
|
|
|
+ DelegateCache.TryAdd(type.Name + "." + name, func);
|
|
|
|
+ return func.DynamicInvoke(obj);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取所有的属性信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <returns>属性信息</returns>
|
|
|
|
+ public static PropertyInfo[] GetProperties(this object obj)
|
|
|
|
+ {
|
|
|
|
+ return obj.GetType().GetProperties(bf);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 属性字段设置
|
|
|
|
+
|
|
|
|
+ #region 获取Description
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据成员信息获取Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="member">成员信息</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static string GetDescription(this MemberInfo member)
|
|
|
|
+ {
|
|
|
|
+ return GetDescription(member, new object[0]);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据成员信息获取Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="member">成员信息</param>
|
|
|
|
+ /// <param name="args">格式化占位对象</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static string GetDescription(this MemberInfo member, params object[] args)
|
|
|
|
+ {
|
|
|
|
+ if (member == null)
|
|
|
|
+ {
|
|
|
|
+ throw new ArgumentNullException(nameof(member));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ var description = member.IsDefined(typeof(DescriptionAttribute), false) ? member.GetAttribute<DescriptionAttribute>().Description : string.Empty;
|
|
|
|
+ return args.Length > 0 ? string.Format(description, args) : description;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 获取Description
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取对象的Attribute
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetAttribute<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
+ {
|
|
|
|
+ var attributes = provider.GetCustomAttributes(typeof(T), true);
|
|
|
|
+ return attributes.Length > 0 ? attributes[0] as T : null;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取对象的Attributes
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static IEnumerable<T> GetAttributes<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
+ {
|
|
|
|
+ return provider.GetCustomAttributes(typeof(T), true).OfType<T>();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #region 资源获取
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据资源名称获取图片资源流
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="_"></param>
|
|
|
|
+ /// <param name="resourceName">资源的名称</param>
|
|
|
|
+ /// <returns>数据流</returns>
|
|
|
|
+ public static Stream GetImageResource(this Assembly _, string resourceName)
|
|
|
|
+ {
|
|
|
|
+ Assembly asm = Assembly.GetExecutingAssembly();
|
|
|
|
+ return asm.GetManifestResourceStream(resourceName);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取程序集资源的文本资源
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
+ /// <param name="resName">资源项名称</param>
|
|
|
|
+ /// <param name="resourceHolder">资源的根名称。例如,名为“MyResource.en-US.resources”的资源文件的根名称为“MyResource”。</param>
|
|
|
|
+ public static string GetStringRes(this Type assemblyType, string resName, string resourceHolder)
|
|
|
|
+ {
|
|
|
|
+ Assembly thisAssembly = Assembly.GetAssembly(assemblyType);
|
|
|
|
+ ResourceManager rm = new ResourceManager(resourceHolder, thisAssembly);
|
|
|
|
+ return rm.GetString(resName);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取程序集嵌入资源的文本形式
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
+ /// <param name="charset">字符集编码</param>
|
|
|
|
+ /// <param name="resName">嵌入资源相对路径</param>
|
|
|
|
+ /// <returns>如没找到该资源则返回空字符</returns>
|
|
|
|
+ public static string GetManifestString(this Type assemblyType, string charset, string resName)
|
|
|
|
+ {
|
|
|
|
+ var asm = Assembly.GetAssembly(assemblyType);
|
|
|
|
+ using var stream = asm.GetManifestResourceStream(string.Concat(assemblyType.Namespace, ".", resName.Replace("/", ".")));
|
|
|
|
+ if (stream == null)
|
|
|
|
+ {
|
|
|
|
+ return "";
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ int iLen = (int)stream.Length;
|
|
|
|
+ byte[] bytes = new byte[iLen];
|
|
|
|
+ _ = stream.Read(bytes, 0, iLen);
|
|
|
|
+ return Encoding.GetEncoding(charset).GetString(bytes);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 判断指定的类型 <paramref name="this"/> 是否是指定泛型类型的子类型,或实现了指定泛型接口。
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="this">需要测试的类型。</param>
|
|
|
|
+ /// <param name="type">泛型接口类型,传入 typeof(IXxx<>)</param>
|
|
|
|
+ /// <returns>如果是泛型接口的子类型,则返回 true,否则返回 false。</returns>
|
|
|
|
+ public static bool IsImplementsOf(this Type @this, Type type)
|
|
|
|
+ {
|
|
|
|
+ if (@this == null) throw new ArgumentNullException(nameof(@this));
|
|
|
|
+ if (type == null) throw new ArgumentNullException(nameof(type));
|
|
|
|
+
|
|
|
|
+ // 测试接口。
|
|
|
|
+ var isTheRawGenericType = @this.GetInterfaces().Any(IsTheRawGenericType);
|
|
|
|
+ if (isTheRawGenericType) return true;
|
|
|
|
+
|
|
|
|
+ // 测试类型。
|
|
|
|
+ while (@this != null && @this != typeof(object))
|
|
|
|
+ {
|
|
|
|
+ isTheRawGenericType = IsTheRawGenericType(@this);
|
|
|
|
+ if (isTheRawGenericType) return true;
|
|
|
|
+ @this = @this.BaseType;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ // 没有找到任何匹配的接口或类型。
|
|
|
|
+ return false;
|
|
|
|
+
|
|
|
|
+ // 测试某个类型是否是指定的原始接口。
|
|
|
|
+ bool IsTheRawGenericType(Type test) => type == (test.IsGenericType ? test.GetGenericTypeDefinition() : test);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 资源获取
|
|
|
|
+
|
|
|
|
+ #region 创建实例
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static object GetInstance(this Type type)
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, object>(type, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<T>(this Type type) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, T>(type, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<T>(string type) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, T>(Type.GetType(type), null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static object GetInstance(string type)
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, object>(Type.GetType(type), null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取一个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg, T>(this Type type, TArg argument) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg, TypeToIgnore, T>(type, argument, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取一个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg, T>(string type, TArg argument) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg, TypeToIgnore, T>(Type.GetType(type), argument, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取2个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, T>(this Type type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg1, TArg2, TypeToIgnore, T>(type, argument1, argument2, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取2个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, T>(string type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg1, TArg2, TypeToIgnore, T>(Type.GetType(type), argument1, argument2, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取3个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <param name="argument3">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, TArg3, T>(this Type type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(type, argument1, argument2, argument3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取3个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <param name="argument3">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, TArg3, T>(string type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(Type.GetType(type), argument1, argument2, argument3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private class TypeToIgnore
|
|
|
|
+ {
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static class InstanceCreationFactory<TArg1, TArg2, TArg3, TObject> where TObject : class, new()
|
|
|
|
+ {
|
|
|
|
+ private static readonly Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>> InstanceCreationMethods = new();
|
|
|
|
+
|
|
|
|
+ public static TObject CreateInstanceOf(Type type, TArg1 arg1, TArg2 arg2, TArg3 arg3)
|
|
|
|
+ {
|
|
|
|
+ CacheInstanceCreationMethodIfRequired(type);
|
|
|
|
+ return InstanceCreationMethods[type](arg1, arg2, arg3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static void CacheInstanceCreationMethodIfRequired(Type type)
|
|
|
|
+ {
|
|
|
|
+ if (InstanceCreationMethods.ContainsKey(type))
|
|
|
|
+ {
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ var argumentTypes = new[]
|
|
|
|
+ {
|
|
|
|
+ typeof(TArg1),
|
|
|
|
+ typeof(TArg2),
|
|
|
|
+ typeof(TArg3)
|
|
|
|
+ };
|
|
|
|
+
|
|
|
|
+ Type[] constructorArgumentTypes = argumentTypes.Where(t => t != typeof(TypeToIgnore)).ToArray();
|
|
|
|
+ var constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, CallingConventions.HasThis, constructorArgumentTypes, []);
|
|
|
|
+ var lamdaParameterExpressions = new[]
|
|
|
|
+ {
|
|
|
|
+ Expression.Parameter(typeof(TArg1), "param1"),
|
|
|
|
+ Expression.Parameter(typeof(TArg2), "param2"),
|
|
|
|
+ Expression.Parameter(typeof(TArg3), "param3")
|
|
|
|
+ };
|
|
|
|
+
|
|
|
|
+ var constructorParameterExpressions = lamdaParameterExpressions.Take(constructorArgumentTypes.Length).ToArray();
|
|
|
|
+ var constructorCallExpression = Expression.New(constructor, constructorParameterExpressions);
|
|
|
|
+ InstanceCreationMethods[type] = Expression.Lambda<Func<TArg1, TArg2, TArg3, TObject>>(constructorCallExpression, lamdaParameterExpressions).Compile();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 创建实例
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取可加载的程序集类型信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assembly"></param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ /// <exception cref="ArgumentNullException"></exception>
|
|
|
|
+ public static IEnumerable<Type> GetLoadableTypes(this Assembly assembly)
|
|
|
|
+ {
|
|
|
|
+ if (assembly == null) throw new ArgumentNullException(nameof(assembly));
|
|
|
|
+ try
|
|
|
|
+ {
|
|
|
|
+ return assembly.GetTypes();
|
|
|
|
+ }
|
|
|
|
+ catch (ReflectionTypeLoadException e)
|
|
|
|
+ {
|
|
|
|
+ return e.Types.Where(t => t != null);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取可加载的程序集类型信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assembly"></param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ /// <exception cref="ArgumentNullException"></exception>
|
|
|
|
+ public static IEnumerable<Type> GetLoadableExportedTypes(this Assembly assembly)
|
|
|
|
+ {
|
|
|
|
+ if (assembly == null) throw new ArgumentNullException(nameof(assembly));
|
|
|
|
+ try
|
|
|
|
+ {
|
|
|
|
+ return assembly.GetExportedTypes();
|
|
|
|
+ }
|
|
|
|
+ catch (ReflectionTypeLoadException e)
|
|
|
|
+ {
|
|
|
|
+ return e.Types.Where(t => t != null);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+}
|