5 .netcore Roslyn 动态编译编译

水深无声 2022-11-28 10:45 96阅读 0赞

使用CSharpCompilation实现动态编译

// 添加要引用的程序集
    List<MetadataReference> refs = new List<MetadataReference>() { 
        MetadataReference.CreateFromFile (typeof (object).Assembly.Location),
        MetadataReference.CreateFromFile (typeof (List<int>).Assembly.Location),
        MetadataReference.CreateFromFile (typeof (ASCIIEncoding).Assembly.Location),
        MetadataReference.CreateFromFile (typeof (JsonConvert).Assembly.Location),
        MetadataReference.CreateFromFile (typeof (IEManageSystemCMSModule).Assembly.Location),
        MetadataReference.CreateFromFile (typeof (Entity).Assembly.Location),
    };
    
    // 生成C#编译
    var cSharpCompilation = CSharpCompilation
                    .Create(Guid.NewGuid().ToString() + ".dll")
                    .WithOptions(new CSharpCompilationOptions(
                        Microsoft.CodeAnalysis.OutputKind.DynamicallyLinkedLibrary,
                        usings: null,
                        optimizationLevel: OptimizationLevel.Debug, // TODO
                        checkOverflow: false, // TODO
                        allowUnsafe: true, // TODO
                        platform: Platform.AnyCpu,
                        warningLevel: 4,
                        xmlReferenceResolver: null
                    ))
                    .AddReferences(refs);
    
    MemoryStream ms = new MemoryStream();
    
    // 要编译的源码
    string code = $@" using System; using System.Collections.Generic; using System.Text; public class ClassA { { }} "
    
    cSharpCompilation
        // 添加语法树
        .AddSyntaxTrees(CSharpSyntaxTree.ParseText(code))
        // 生成程序集流
        // 这里将流导入到内存流中
        // 如果要生成dll文件，使用 Emit(dllPath)
        .Emit(ms);