C#•4mo ago

✅ how to generate an executable from a csharp code

Hello, i'd want to generate an exe from a C# code, is it possible ? if yes can you help me ? thanks in advance. (without using dotnet cli or msbuild or even csc.exe)

36 Replies

jcotton42•4mo ago

"without using dotnet cli or msbuild or even csc.exe" ... why those are literally the correct tools for this

Witchz•4mo ago

basically I have a nodejs project that builds an exe and I cant use msbuild etc.. but I'm making a "builder" in C# with Mono.Csharp but its not working either

Witchz•4mo ago

Witchz•4mo ago

thanks for trying to help me @jcotton42, i really appreciate it

Thinker•4mo ago

Why can you use this tool but not the regular compiler?

Witchz•4mo ago

wdym ?

Thinker•4mo ago

Why are you using Mono.CSharp for this and not Roslyn or just command-line dotnet?

Witchz•4mo ago

Roslyn ? what's that ?

Thinker•4mo ago

The C# compiler, available as a C# library

Witchz•4mo ago

bc if im not using the cli of dotnet do u have a code example of it or nah?

Thinker•4mo ago

So you want to transpile C#...?

Witchz•4mo ago

wdym by "transpile" ?

Anchy•4mo ago

this isnt making a lot of sense, what is your goal here?

Witchz•4mo ago

generate an executable from a csharp code

Anchy•4mo ago

right so where does nodejs come into it and why do you need to do that

Thinker•4mo ago

That's literally just compiling

Witchz•4mo ago

yh, its the same

Thinker•4mo ago

https://learn.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/

The .NET Compiler Platform SDK (Roslyn APIs) - C#

Learn to use the .NET Compiler Platform SDK (also called the Roslyn APIs) to understand .NET code, spot errors, and fix those errors.

Witchz•4mo ago

bc, nodejs uses a library to interpret the code like edge-js or nexe and its interpreting it do use the builder.exe, the builder.exe is the exe that'll compiles the new exe that got build idk if u got my idea idk really how to explain

Anchy•4mo ago

and your builder is written in c#?

Witchz•4mo ago

it says Compilation failed. Errors: (8,21): error CS0103: Name 'Console' does not exist in current context

Thinker•4mo ago

Oh you're already using Roslyn

Witchz•4mo ago

yup idk about the name "HelloWorld.exe" 💀 please dont judge me 🤣😂 but its not working .

Thinker•4mo ago

Yes because you're referencing the proper assemblies

Witchz•4mo ago

hmm?

Thinker•4mo ago

I still have no idea what you're trying to do, but you can ask in #roslyn if you have questions about Roslyn

Witchz•4mo ago

okk ty done but do u know how can i fix the code ?

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using System;
using System.IO;

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

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

        SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

        string outputFilePath = "HelloWorld.exe";

        var compilation = CSharpCompilation.Create(
            Path.GetFileNameWithoutExtension(outputFilePath),
            new[] { syntaxTree },
            new[] { MetadataReference.CreateFromFile(typeof(object).Assembly.Location) },
            new CSharpCompilationOptions(OutputKind.ConsoleApplication));

        var result = compilation.Emit(outputFilePath);

        if (result.Success)
        {
            Console.WriteLine("Compilation successful. Output file: " + outputFilePath);
        }
        else
        {
            Console.WriteLine("Compilation failed. Errors:");

            foreach (var diagnostic in result.Diagnostics)
            {
                Console.WriteLine(diagnostic.ToString());
            }
        }
    }
}

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using System;
using System.IO;

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

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

        SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

        string outputFilePath = "HelloWorld.exe";

        var compilation = CSharpCompilation.Create(
            Path.GetFileNameWithoutExtension(outputFilePath),
            new[] { syntaxTree },
            new[] { MetadataReference.CreateFromFile(typeof(object).Assembly.Location) },
            new CSharpCompilationOptions(OutputKind.ConsoleApplication));

        var result = compilation.Emit(outputFilePath);

        if (result.Success)
        {
            Console.WriteLine("Compilation successful. Output file: " + outputFilePath);
        }
        else
        {
            Console.WriteLine("Compilation failed. Errors:");

            foreach (var diagnostic in result.Diagnostics)
            {
                Console.WriteLine(diagnostic.ToString());
            }
        }
    }
}

leowest•4mo ago

looks like you're missing references to your Metadata

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

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

    var references = new HashSet<Assembly>()
    {
        typeof(object).Assembly,
        Assembly.Load(new AssemblyName("System.Private.CoreLib")),
        Assembly.Load(new AssemblyName("System.Console")),
        Assembly.Load(new AssemblyName("System.Runtime"))
    };

    SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

    var outputFilePath = "HelloWorld.exe";

    var compilation = CSharpCompilation.Create(
        Path.GetFileNameWithoutExtension(outputFilePath),
        new[] { syntaxTree },
        references.Select(assembly => MetadataReference.CreateFromFile(assembly.Location)).ToList(),
        new CSharpCompilationOptions(OutputKind.ConsoleApplication));

    var result = compilation.Emit(outputFilePath);

    if (result.Success)
    {
        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();
}

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

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

    var references = new HashSet<Assembly>()
    {
        typeof(object).Assembly,
        Assembly.Load(new AssemblyName("System.Private.CoreLib")),
        Assembly.Load(new AssemblyName("System.Console")),
        Assembly.Load(new AssemblyName("System.Runtime"))
    };

    SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

    var outputFilePath = "HelloWorld.exe";

    var compilation = CSharpCompilation.Create(
        Path.GetFileNameWithoutExtension(outputFilePath),
        new[] { syntaxTree },
        references.Select(assembly => MetadataReference.CreateFromFile(assembly.Location)).ToList(),
        new CSharpCompilationOptions(OutputKind.ConsoleApplication));

    var result = compilation.Emit(outputFilePath);

    if (result.Success)
    {
        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();
}

probably only had to add the System.Console but for safety

leowest•4mo ago

@Witchz

Witchz•4mo ago

yep ty i fixed it but thnx for ur help man

leowest•4mo ago

no worries, dont forget to $close it

MODiX•4mo ago

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

Witchz•4mo ago

sorry

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✅ how to generate an executable from a csharp code