C#•10mo ago

How can i compile code, that is located in variable string?

How can i compile code, that is located in variable string? i asked this question to chat gpt and google geminш, but they gave me only only these options that didn't work

36 Replies

das VainstaintischOP•10mo ago

and i using visual studio(if this information is need)

i like chatgpt•10mo ago

$code

MODiX•10mo ago

To post C# code type the following: ```cs // code here ``` Get an example by typing $codegif in chat For longer snippets, use: https://paste.mod.gg/

das VainstaintischOP•10mo ago

um, here's need to show that this code is wrong and gives an error

leowest•10mo ago

he is asking you to post the images as code so we can better read it and if needed copy paste, modify etc

das VainstaintischOP•10mo ago

uh ok, wait

string code = @"
public class MyScript
{
    public void Execute()
    {
        Console.WriteLine(""Hello, world!"");
    }
}
";

// Создание класса
Assembly assembly = Assembly.Load(CompileCode(code));
Type type = assembly.GetType("MyScript");

string code = @"
public class MyScript
{
    public void Execute()
    {
        Console.WriteLine(""Hello, world!"");
    }
}
";

// Создание класса
Assembly assembly = Assembly.Load(CompileCode(code));
Type type = assembly.GetType("MyScript");

and..

// Код из переменной
string code = @"
Console.WriteLine(""Hello, world!"");
";

// Создание ScriptEngine
ScriptEngine engine = new ScriptEngine();

// Выполнение кода
engine.Execute(code);

// Код из переменной
string code = @"
Console.WriteLine(""Hello, world!"");
";

// Создание ScriptEngine
ScriptEngine engine = new ScriptEngine();

// Выполнение кода
engine.Execute(code);

leowest•10mo ago

where is ScriptEngine coming from? what library

das VainstaintischOP•10mo ago

because of that it didn't work and Gemini didn't write this library

leowest•10mo ago

I know this one

internal class Program
{
    static void Main(string[] args)
    {
        string code = @"
        using System;

        class HelloWorld
        {
            static void Main()
            {
                System.Console.WriteLine(""Hello, World!"");
            }
        }
        ";

        string trustedAssemblies = (AppContext.GetData("TRUSTED_PLATFORM_ASSEMBLIES") as string)!;
        string[] trustedList = trustedAssemblies.Split(';');
        var required = new List<string>()
        {
            "mscorlib.dll",
            "System.Private.CoreLib.dll",
            "System.Runtime.dll",
            "System.Console.dll",
        };
        var path = Path.GetDirectoryName(typeof(object).Assembly.Location)!;
        var filteredPathList = trustedList.Where(p => required.Any(r => p.Contains(r))).Select(x => Path.Combine(path, x)).ToList();
        SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

        var outputFilePath = "HelloWorld.exe";

        var compilation = CSharpCompilation.Create("DynamicCode")
            .WithOptions(new CSharpCompilationOptions(OutputKind.ConsoleApplication))
            .AddReferences(filteredPathList.Select(assembly => MetadataReference.CreateFromFile(assembly)).ToList())
            .AddSyntaxTrees(syntaxTree);

        using var ms = new MemoryStream();
        var result = compilation.Emit(ms);

        if (result.Success)
        {
            File.WriteAllBytes(outputFilePath, ms.ToArray());
            Console.WriteLine("Compilation successful. Output file: " + outputFilePath);
        }
        else
        {
            Console.WriteLine("Compilation failed. Errors:");
            foreach (var diagnostic in result.Diagnostics)
            {
                Console.WriteLine(diagnostic.ToString());
            }
        }
        Console.ReadKey();
    }
}

internal class Program
{
    static void Main(string[] args)
    {
        string code = @"
        using System;

        class HelloWorld
        {
            static void Main()
            {
                System.Console.WriteLine(""Hello, World!"");
            }
        }
        ";

        string trustedAssemblies = (AppContext.GetData("TRUSTED_PLATFORM_ASSEMBLIES") as string)!;
        string[] trustedList = trustedAssemblies.Split(';');
        var required = new List<string>()
        {
            "mscorlib.dll",
            "System.Private.CoreLib.dll",
            "System.Runtime.dll",
            "System.Console.dll",
        };
        var path = Path.GetDirectoryName(typeof(object).Assembly.Location)!;
        var filteredPathList = trustedList.Where(p => required.Any(r => p.Contains(r))).Select(x => Path.Combine(path, x)).ToList();
        SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

        var outputFilePath = "HelloWorld.exe";

        var compilation = CSharpCompilation.Create("DynamicCode")
            .WithOptions(new CSharpCompilationOptions(OutputKind.ConsoleApplication))
            .AddReferences(filteredPathList.Select(assembly => MetadataReference.CreateFromFile(assembly)).ToList())
            .AddSyntaxTrees(syntaxTree);

        using var ms = new MemoryStream();
        var result = compilation.Emit(ms);

        if (result.Success)
        {
            File.WriteAllBytes(outputFilePath, ms.ToArray());
            Console.WriteLine("Compilation successful. Output file: " + outputFilePath);
        }
        else
        {
            Console.WriteLine("Compilation failed. Errors:");
            foreach (var diagnostic in result.Diagnostics)
            {
                Console.WriteLine(diagnostic.ToString());
            }
        }
        Console.ReadKey();
    }
}

this uses

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;

das VainstaintischOP•10mo ago

gives errors

das VainstaintischOP•10mo ago

(translated to english)

leowest•10mo ago

👆 u have to add the nuget

das VainstaintischOP•10mo ago

i've forgotten how i remember i did this few times but.. could you remind how😅

leowest•10mo ago

im not near a pc ... mmm u right click your project then some where there u see nuget or package manager or something

das VainstaintischOP•10mo ago

mhm, found it

das VainstaintischOP•10mo ago

this? right?

das VainstaintischOP•10mo ago

yea, it works so now i need to edit and paste it to my project😅

leowest•10mo ago

no worries glad its working 😉 ScriptEngine was something very old I think I remember seeing it but dont remember where if it works consider $close this thread 🙂

MODiX•10mo ago

Use the /close command to mark a forum thread as answered

das VainstaintischOP•10mo ago

here's anyways too many code... sorry i've been afk but with ScriptEngine it looks shorter

leowest•10mo ago

I dont know what Script Engine is so I can't help u with that

i like chatgpt•10mo ago

Internally Script Engine also uses lengthy code. 🙂 https://github.com/suugbut/SuperTrashBin/blob/main/instantiate_from_text_file.cs

das VainstaintischOP•10mo ago

I'll check it later

leowest•10mo ago

if you can link me to what ScriptEngine I might be able to help

das VainstaintischOP•10mo ago

Lengthy.. you mean in string can be longer code?

i like chatgpt•10mo ago

Script Engine only shortens the boilerplate.

leowest•10mo ago

Ah there is Microsoft.CodeAnalysis.CSharp.Scripting which lets u evaluate code with your code if that is what you're referring to

das VainstaintischOP•10mo ago

I'll try it tomorrow, maybe I just didn't install the right library for this I didn't fully understand you.. sorry...

leowest•10mo ago

give me a second

static async Task Main(string[] args)
{
    var codeToCompile = @"Console.WriteLine(""Hello, world!"");";

    var options = ScriptOptions.Default;
    options = options.WithImports("System", "System.Console");
    Script compiledScript = CSharpScript.Create(codeToCompile, options);

    Console.WriteLine("Executing code...");
    var result = await compiledScript.RunAsync();
    Console.WriteLine(result.ReturnValue);
    Console.WriteLine("Code executed...");
    Console.ReadKey();
}

static async Task Main(string[] args)
{
    var codeToCompile = @"Console.WriteLine(""Hello, world!"");";

    var options = ScriptOptions.Default;
    options = options.WithImports("System", "System.Console");
    Script compiledScript = CSharpScript.Create(codeToCompile, options);

    Console.WriteLine("Executing code...");
    var result = await compiledScript.RunAsync();
    Console.WriteLine(result.ReturnValue);
    Console.WriteLine("Code executed...");
    Console.ReadKey();
}