Testura.Code is a wrapper around the Roslyn API and used for generation, saving and and compiling C# code. It provides methods and helpers to generate classes, methods, statements and expressions.

It provide helpers to generate:

• Classes
• Methods
• Parameters
• Arguments
• Attributes
• Fields
• Properties

But also simple statements like:

• Declaration statements (for example declare and assign variables)
• Iterations statements (for example for-loop)
• Jump statements (for example return)
• Selection statement (for example if-statements)
• Expression statements (for example invoke methods)

Install

NuGet

https://www.nuget.org/packages/Testura.Code

PM> Install-Package Testura.Code

Usage

Testura.Code have three different types of helpers:

• Generators - The most basic kinds of code generators, for example fields, properties and modifiers.
• Statement - Helpers for regular statements and expressions, for example declare and assign a variable or invoke a method.
• Builders - Currently we have two builder - One class builder and one method builder. These have the highest abstraction and are easy to use.

Documentation

• Wiki -https://github.com/Testura/Testura.Code/wiki
• Api - https://testura.github.io/Code/api/index.html

Examples

Hello world

Here is an example on how to generate, save and compile a simple hello world.

Generate

var @class = new ClassBuilder("Program", "HelloWorld")
    .WithUsings("System") 
    .WithModifiers(Modifiers.Public)
    .WithMethods(
        new MethodBuilder("Main")
        .WithModifiers(Modifiers.Public, Modifiers.Static)
        .WithParameters(new Parameter("args", typeof(string[])))
        .WithBody(
            BodyGenerator.Create(
                Statement.Expression.Invoke("Console", "WriteLine", new List<IArgument>() { new ValueArgument("Hello world") }).AsStatement(),
                Statement.Expression.Invoke("Console", "ReadLine").AsStatement()
                ))
        .Build())
    .Build();

This code will generate following code:

using System;

namespace HelloWorld
{
    public class Program
    {
        public static void Main(String[] args)
        {
            Console.WriteLine("Hello world");
            Console.ReadLine();
        }
    }
}

Save

var saver = new CodeSaver();

// As a string
var generatedCode = saver.SaveCodeAsString(@class);

// Or to file
saver.SaveCodeToFile(@class, @"/path/HelloWorld.cs");

Compile

var compiler = new Compiler();

//To a dll

// From string
var result = await compiler.CompileSourceAsync(@"/path/HelloWorld.dll", generatedCode);

// From file
var result = await compiler.CompileFilesAsync(@"/path/HelloWorld.dll",  @"/path/HelloWorld.cs");

//In memory (without creating a dll)

// From string
var result = await compiler.CompileSourceInMemoryAsync(generatedCode);

// From file
var result = await compiler.CompileFilesInMemoryAsync(@"/path/HelloWorld.cs");

Missing anything?

If we miss a feature, syntax or statements - just create an issue or contact us and I'm sure we can add it.

It is also possible for you to contribute with your own feature. Simply add a pull request and we will look at it.

License

This project is licensed under the MIT License. See the LICENSE.md file for details.

Contact

Visit www.testura.net, twitter at @testuranet or email at mille.bostrom@testura.net