以前C#脚本用的委托注入模式，今天在AI提示下，尝试用脚本直接实现接口，然后C#可以动态或指定新类型创建接口实现对象。从代码角度看，稍显复杂，但脚本方面显得更简洁和有条理。
引用包需要Microsoft.CodeAnalysis、Microsoft.CodeAnalysis.Common等，其他自动添加：
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Humanizer.Core" version="2.14.1" targetFramework="net472" />
<package id="Microsoft.Bcl.AsyncInterfaces" version="8.0.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.Analyzers" version="3.11.0" targetFramework="net472" developmentDependency="true" />
<package id="Microsoft.CodeAnalysis.Common" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.CSharp" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.CSharp.Scripting" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.CSharp.Workspaces" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.Scripting.Common" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.VisualBasic" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.VisualBasic.Workspaces" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CodeAnalysis.Workspaces.Common" version="4.13.0" targetFramework="net472" />
<package id="Microsoft.CSharp" version="4.7.0" targetFramework="net472" />
<package id="System.Buffers" version="4.5.1" targetFramework="net472" />
<package id="System.Collections.Immutable" version="8.0.0" targetFramework="net472" />
<package id="System.Composition" version="8.0.0" targetFramework="net472" />
<package id="System.Composition.AttributedModel" version="8.0.0" targetFramework="net472" />
<package id="System.Composition.Convention" version="8.0.0" targetFramework="net472" />
<package id="System.Composition.Hosting" version="8.0.0" targetFramework="net472" />
<package id="System.Composition.Runtime" version="8.0.0" targetFramework="net472" />
<package id="System.Composition.TypedParts" version="8.0.0" targetFramework="net472" />
<package id="System.IO.Pipelines" version="8.0.0" targetFramework="net472" />
<package id="System.Memory" version="4.5.5" targetFramework="net472" />
<package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net472" />
<package id="System.Reflection.Metadata" version="8.0.0" targetFramework="net472" />
<package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net472" />
<package id="System.Text.Encoding.CodePages" version="7.0.0" targetFramework="net472" />
<package id="System.Threading.Channels" version="7.0.0" targetFramework="net472" />
<package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
</packages>接口定义如下：
namespace WindowsFormsApp1
{
public interface IFlexiblePluginAgent
{
string RegistDrType();
}
}
验证文件TextFile1.txt如下：
using System;
using System.Collections.Generic;
public class FlexiblePluginAgentProcessScriptXXXX : WindowsFormsApp1.IFlexiblePluginAgent
{
public string RegistDrType()
{
return "scritp_drv";
}
}加载和验证代码如下：
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.Emit;
using Microsoft.CodeAnalysis;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
namespace WindowsFormsApp1
{
internal static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
ScriptTest();
}
static void ScriptTest()
{
try
{
// 读取外部代码文件
string codeFilePath = "TextFile1.txt";
string sourceCode = File.ReadAllText(codeFilePath);
var compilation = CSharpCompilation.Create("DynamicAssembly")
.WithOptions(new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary))
.AddReferences(MetadataReference.CreateFromFile(typeof(object).Assembly.Location))
.AddReferences(MetadataReference.CreateFromFile(typeof(IFlexiblePluginAgent).Assembly.Location))
.AddSyntaxTrees(CSharpSyntaxTree.ParseText(sourceCode));
// 检查编译错误
var diagnostics = compilation.GetDiagnostics();
if (diagnostics.HasAnyErrors())
{
Console.WriteLine("编译错误:");
foreach (var diagnostic in diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error))
{
Console.WriteLine(diagnostic.ToString());
}
return;
}
// 内存中生成程序集
using (var ms = new MemoryStream())
{
EmitResult emitResult = compilation.Emit(ms);
if (!emitResult.Success)
{
Console.WriteLine("程序集生成失败:");
foreach (var diagnostic in emitResult.Diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error))
{
Console.WriteLine(diagnostic.ToString());
}
return;
}
ms.Seek(0, SeekOrigin.Begin);
Assembly assembly = Assembly.Load(ms.ToArray());
Console.WriteLine("---检查程序集中是否有IFlexiblePluginAgent的派生类---");
var derivedTypes = assembly.DefinedTypes
.Where(t => typeof(IFlexiblePluginAgent).IsAssignableFrom(t) && !t.IsInterface)
.ToList();
if (derivedTypes.Any())
{
Console.WriteLine("找到以下IFlexiblePluginAgent的派生类:");
foreach (var type in derivedTypes)
{
Console.WriteLine($" - {type.FullName}");
}
// 使用第一个派生类创建对象
Type agentType = derivedTypes.First().AsType();
IFlexiblePluginAgent agent = (IFlexiblePluginAgent)Activator.CreateInstance(agentType);
string result = agent.RegistDrType();
Console.WriteLine($"注册的 DrType 是: {result}");
}
else
{
Console.WriteLine("未找到IFlexiblePluginAgent的派生类");
}
Console.WriteLine("---知道类名字直接调用---");
Type agentType2 = assembly.GetType("FlexiblePluginAgentProcessScriptXXXX");
if (agentType2 == null)
{
Console.WriteLine("未找到 MyPluginAgent 类型");
return;
}
IFlexiblePluginAgent agent2 = (IFlexiblePluginAgent)Activator.CreateInstance(agentType2);
string result2 = agent2.RegistDrType();
Console.WriteLine($"注册的 DrType 是: {result2}");
}
}
catch (Exception ex)
{
Console.WriteLine($"发生错误: {ex.Message}");
}
}
}
// 扩展方法用于检查诊断信息
public static class DiagnosticExtensions
{
public static bool HasAnyErrors(this IEnumerable<Diagnostic> diagnostics)
{
return diagnostics.Any(d => d.Severity == DiagnosticSeverity.Error);
}
}
}
代码托管地址：GitHub - PascalMing/CodeAnalysisInterface: C#脚本实现接口并加载验证