mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
321 lines
12 KiB
C#
321 lines
12 KiB
C#
using Serein.Library.Api;
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using Serein.Library.Utils;
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using Serein.Library;
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using System.Collections.Concurrent;
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using System.Reflection;
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using Serein.Library.FlowNode;
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namespace Serein.NodeFlow.Tool;
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public static class NodeMethodDetailsHelper
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{
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/// <summary>
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/// 获取处理方法
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/// </summary>
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public static IEnumerable<MethodInfo> GetMethodsToProcess(Type type)
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{
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return type.GetMethods(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
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.Where(m => m.GetCustomAttribute<NodeActionAttribute>()?.Scan == true);
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}
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/// <summary>
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/// 创建方法信息
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/// </summary>
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/// <returns></returns>
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public static (MethodDetails?, DelegateDetails?) CreateMethodDetails(Type type, MethodInfo method, string assemblyName)
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{
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var attribute = method.GetCustomAttribute<NodeActionAttribute>();
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if(attribute is null || attribute.Scan == false)
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{
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return (null, null);
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}
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//var dllTypeName = $"{assemblyName}.{type.Name}";
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var dllTypeMethodName = $"{assemblyName}.{type.Name}.{method.Name}";
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var explicitDataOfParameters = GetExplicitDataOfParameters(method.GetParameters());
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//// 通过表达式树生成委托
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//var methodDelegate = GenerateMethodDelegate(type, // 方法所在的对象类型
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// method, // 方法信息
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// method.GetParameters(),// 方法参数
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// method.ReturnType);// 返回值
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//// 通过表达式树生成委托
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var emitMethodType = EmitHelper.CreateDynamicMethod(method, out var methodDelegate);// 返回值
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Type? returnType;
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bool isTask = IsGenericTask(method.ReturnType, out var taskResult);
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if (attribute.MethodDynamicType == Library.NodeType.Flipflop)
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{
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if (method.ReturnType.IsGenericType && method.ReturnType.GetGenericTypeDefinition() == typeof(Task<>))
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{
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// 获取 Task<> 的泛型参数类型
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var innerType = method.ReturnType.GetGenericArguments()[0];
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if (innerType.IsGenericType && innerType.GetGenericTypeDefinition() == typeof(IFlipflopContext<>))
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{
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var flipflopType = innerType.GetGenericArguments()[0];
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returnType = flipflopType;
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}
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else
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{
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Console.WriteLine($"[{dllTypeMethodName}]跳过创建，返回类型非预期的Task<IFlipflopContext<TResult>>。");
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return (null, null);
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}
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}
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else
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{
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Console.WriteLine($"[{dllTypeMethodName}]跳过创建，因为触发器方法的返回值并非Task<>，将无法等待。");
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return (null, null);
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}
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//if (!isTask || taskResult != typeof(IFlipflopContext<object>))
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//{
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//
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//}
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}
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else if(isTask)
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{
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returnType = taskResult is null ? typeof(Task) : taskResult;
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}
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else
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{
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returnType = method.ReturnType;
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}
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if (string.IsNullOrEmpty(attribute.AnotherName)){
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attribute.AnotherName = method.Name;
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}
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var asyncPrefix = "[异步]"; // IsGenericTask(returnType) ? "[async]" : ;
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var methodMethodAnotherName = isTask ? asyncPrefix + attribute.AnotherName : attribute.AnotherName;
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var md = new MethodDetails() // 从DLL生成方法描述
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{
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ActingInstanceType = type,
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// ActingInstance = instance,
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MethodName = dllTypeMethodName,
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MethodDynamicType = attribute.MethodDynamicType,
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MethodLockName = attribute.LockName,
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MethodAnotherName = methodMethodAnotherName,
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ParameterDetailss = explicitDataOfParameters,
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ReturnType = returnType,
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};
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var dd = new DelegateDetails(emitMethodType, methodDelegate) ;
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return (md, dd);
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}
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public static bool IsGenericTask(Type returnType, out Type? taskResult)
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{
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// 判断是否为 Task 类型或泛型 Task<T>
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if (returnType == typeof(Task))
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{
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taskResult = null;
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return true;
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}
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else if (returnType.IsGenericType && returnType.GetGenericTypeDefinition() == typeof(Task<>))
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{
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// 获取泛型参数类型
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Type genericArgument = returnType.GetGenericArguments()[0];
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taskResult = genericArgument;
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return true;
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}
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else
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{
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taskResult = null;
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return false;
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}
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}
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private static ConcurrentDictionary<string, (object, MethodInfo)> ConvertorInstance =[];
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/// <summary>
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/// 获取参数信息
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/// </summary>
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/// <param name="parameters"></param>
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/// <returns></returns>
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private static ParameterDetails[] GetExplicitDataOfParameters(ParameterInfo[] parameters)
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{
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return parameters.Select((it, index) =>
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{
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Type paremType;
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if (it.GetCustomAttribute<EnumTypeConvertorAttribute>() is EnumTypeConvertorAttribute attribute1 && attribute1 is not null)
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{
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// 存在类型选择器
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paremType = attribute1.EnumType;
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return GetExplicitDataOfParameter(it, index, paremType, true);
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}
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else if (it.GetCustomAttribute<BindConvertorAttribute>() is BindConvertorAttribute attribute2 && attribute2 is not null)
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{
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paremType = attribute2.EnumType;
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string key = typeof(IEnumConvertor<,>).FullName + attribute2.EnumType.FullName + attribute2.ConvertorType.FullName;
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if (!ConvertorInstance.ContainsKey(key))
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{
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Type enumConvertorType = typeof(IEnumConvertor<,>);
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// 定义具体类型
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Type specificType = enumConvertorType.MakeGenericType(attribute2.EnumType, it.ParameterType);
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// 获取实现类的类型
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Type implementorType = attribute2.ConvertorType;
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// 创建实现类的实例
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object instance = Activator.CreateInstance(implementorType);
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// 调用 Convert 方法
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MethodInfo convertMethod = implementorType.GetMethod("Convertor");
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ConvertorInstance[key] = (instance, convertMethod);
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}
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Func<object, object> func = (enumValue) =>
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{
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(var obj,var methodInfo) = ConvertorInstance[key];
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return methodInfo?.Invoke(obj, [enumValue]);
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};
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// 确保实例实现了所需接口
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ParameterDetails ed = GetExplicitDataOfParameter(it, index, paremType, true, func);
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return ed;
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}
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else
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{
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return GetExplicitDataOfParameter(it, index, it.ParameterType, it.HasDefaultValue);
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}
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//string explicitTypeName = GetExplicitTypeName(paremType);
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//var items = GetExplicitItems(paremType, explicitTypeName);
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//if ("Bool".Equals(explicitTypeName)) explicitTypeName = "Select"; // 布尔值 转为 可选类型
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//return new ExplicitData
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//{
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// IsExplicitData = attribute is null ? it.HasDefaultValue: true,
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// Index = index,
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// ExplicitTypeName = explicitTypeName,
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// ExplicitType = paremType,
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// DataType = it.ParameterType,
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// ParameterName = it.Name,
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// DataValue = it.HasDefaultValue ? it?.DefaultValue?.ToString() : "",
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// Items = items.ToArray(),
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//};
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}).ToArray();
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}
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private static ParameterDetails GetExplicitDataOfParameter(ParameterInfo parameterInfo,
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int index,
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Type paremType,
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bool isExplicitData,
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Func<object, object> func = null)
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{
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string explicitTypeName = GetExplicitTypeName(paremType);
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var items = GetExplicitItems(paremType, explicitTypeName);
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if ("Bool".Equals(explicitTypeName)) explicitTypeName = "Select"; // 布尔值 转为 可选类型
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return new ParameterDetails
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{
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IsExplicitData = isExplicitData, //attribute is null ? parameterInfo.HasDefaultValue : true,
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Index = index,
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ExplicitTypeName = explicitTypeName,
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ExplicitType = paremType,
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Convertor = func,
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DataType = parameterInfo.ParameterType,
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Name = parameterInfo.Name,
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DataValue = parameterInfo.HasDefaultValue ? parameterInfo?.DefaultValue?.ToString() : "", // 如果存在默认值，则使用默认值
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Items = items.ToArray(), // 如果是枚举值入参，则获取枚举类型的字面量
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};
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}
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/// <summary>
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/// 判断使用输入器还是选择器
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/// </summary>
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/// <param name="type"></param>
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/// <returns></returns>
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private static string GetExplicitTypeName(Type type)
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{
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return type switch
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{
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Type t when t.IsEnum => "Select",
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Type t when t == typeof(bool) => "Bool",
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Type t when t == typeof(string) => "Value",
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Type t when t == typeof(int) => "Value",
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Type t when t == typeof(double) => "Value",
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_ => "Value"
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};
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}
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/// <summary>
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/// 获取参数列表选项
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/// </summary>
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/// <param name="type"></param>
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/// <param name="explicitTypeName"></param>
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/// <returns></returns>
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private static IEnumerable<string> GetExplicitItems(Type type, string explicitTypeName)
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{
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IEnumerable<string> items = explicitTypeName switch
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{
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"Select" => Enum.GetNames(type),
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"Bool" => ["True", "False"],
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_ => []
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};
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return items;
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}
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//private static Delegate GenerateMethodDelegate(Type type, MethodInfo methodInfo, ParameterInfo[] parameters, Type returnType)
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//{
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// var parameterTypes = parameters.Select(p => p.ParameterType).ToArray();
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// var parameterCount = parameters.Length;
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// if (returnType == typeof(void))
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// {
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// if (parameterCount == 0)
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// {
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// // 无返回值，无参数
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// return ExpressionHelper.MethodCaller(type, methodInfo);
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// }
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// else
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// {
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// // 无返回值，有参数
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// return ExpressionHelper.MethodCaller(type, methodInfo, parameterTypes);
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// }
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// }
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// // else if (returnType == typeof(Task<FlipflopContext)) // 触发器
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// else if (FlipflopFunc.IsTaskOfFlipflop(returnType)) // 触发器
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// {
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// if (parameterCount == 0)
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// {
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// // 有返回值，无参数
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// return ExpressionHelper.MethodCallerAsync(type, methodInfo);
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// }
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// else
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// {
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// // 有返回值，有参数
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// return ExpressionHelper.MethodCallerAsync(type, methodInfo, parameterTypes);
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// }
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// }
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// else
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// {
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// if (parameterCount == 0)
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// {
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// // 有返回值，无参数
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// return ExpressionHelper.MethodCallerHaveResult(type, methodInfo);
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// }
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// else
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// {
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// // 有返回值，有参数
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// return ExpressionHelper.MethodCallerHaveResult(type, methodInfo, parameterTypes);
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// }
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// }
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//}
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}
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