MikeCodesDotNET

private async void RunMacro()
{
    if(userScript == null)
        MessageBox.Show("You must first compile the script.");

    try
    {
        ScriptState result = await userScript.RunAsync();
    }
    catch(Exception e)

MikeCodesDotNET

private void ValidatePropertyDeclarationSyntax(PropertyDeclarationSyntax declarationSyntax)
{
  IPropertySymbol symbol = semanticModel.GetDeclaredSymbol(declarationSyntax) as IPropertySymbol;

  if (symbol.IsStatic)
  {
      errors.Add((ValidationErrorType.Illegal_Feature, "Static properties are not allowed"));
      return;
  }

MikeCodesDotNET

 private bool IsIllegalAssemblyName(string assemblyName)
        {
            return assemblyName switch
            {
                "System.Console" => true,
                "System.Diagnostics.Debug" => true,
                "System.IO" => true,
                "System.IO.FileSystem" => true,
                "System.IO.FileSystem.Primitives" => true,
                "System.Reflection" => true,

MikeCodesDotNET

foreach(UsingDirectiveSyntax usingDirective in syntaxRootNode.Usings)
{
    ISymbol symbol = semanticModel.GetSymbolInfo(usingDirective.Name).Symbol;
    string name = symbol.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat);
    
  	if(name == "System.IO")
      throw new Exception("whoa!!, you can't be using that here!");
  	
}

MikeCodesDotNET

private Compilation compilation;
private SemanticModel semanticModel;
private CompilationUnitSyntax syntaxRootNode;

// Validation Class Constructor 
public ScriptValidator(Script script)
{
  compilation = script.GetCompilation();

  SyntaxTree syntaxTree = compilation.SyntaxTrees.First();

MikeCodesDotNET

private Script userScript;

private void CompileScript()
{
    UpdateSource(); //Handles creating a copy of the script which includes variables the user never sees.
    string text = csSource.Text; //csSource is an object from the UI provider
    
  	userScript = CSharpScript.Create(text, options: userScriptOptions);
    userScript.Compile(); 

MikeCodesDotNET

 static Script script;
        public static async Task Main(string[] args)
        {
            var userScriptPath = Path.Combine(Environment.CurrentDirectory, "scriptInput.txt");
            var fileContents = File.ReadAllText(userScriptPath);

            script = CSharpScript.Create(fileContents, ScriptOptions.Default);

            for (int i = 0; i < 15; i++)
            {

MikeCodesDotNET

System.TimeSpan sinceMidnight = System.DateTime.Now - System.DateTime.Today;
var seconds = sinceMidnight.TotalSeconds;

MikeCodesDotNET

public static async Task Main(string[] args)
{
    var userScriptPath = Path.Combine(Environment.CurrentDirectory, "scriptInput.txt");
    var fileContents = File.ReadAllText(userScriptPath);

    Script script = CSharpScript.Create(fileContents, ScriptOptions.Default);
    var result = await script.RunAsync();

    Console.WriteLine($"Seconds in a week: {result.GetVariable("seconds").Value}");
}

MikeCodesDotNET

using Microsoft.CodeAnalysis.CSharp.Scripting;