private static string GetGeneratedOutput(string source)
{
var syntaxTree = CSharpSyntaxTree.ParseText(source);
var references = new List <MetadataReference>();
Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
foreach (var assembly in assemblies)
{
if (!assembly.IsDynamic)
{
references.Add(MetadataReference.CreateFromFile(assembly.Location));
}
}
var compilation = CSharpCompilation.Create("foo", new SyntaxTree[] { syntaxTree }, references, new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
System.Collections.Immutable.ImmutableArray <Diagnostic> diagnostics = compilation.GetDiagnostics();
Assert.False(diagnostics.Any(d => d.Severity == DiagnosticSeverity.Error), "Failed: " + diagnostics.FirstOrDefault()?.GetMessage());
var generator = new Generator();
var output = generator.GetGeneratedSource(compilation);
return(output);
}
public async Task EvaluateAsync(CommandContext ctx,
[RemainingText, Description("Code to evaluate.")] string code)
{
if (string.IsNullOrWhiteSpace(code))
{
throw new InvalidCommandUsageException("Code missing.");
}
int cs1 = code.IndexOf("```") + 3;
int cs2 = code.LastIndexOf("```");
if (cs1 == -1 || cs2 == -1)
{
throw new InvalidCommandUsageException("You need to wrap the code into a code block.");
}
code = code.Substring(cs1, cs2 - cs1);
var emb = new DiscordEmbedBuilder {
Title = "Evaluating...",
Color = this.ModuleColor
};
DiscordMessage msg = await ctx.RespondAsync(embed : emb.Build());
var globals = new EvaluationEnvironment(ctx);
ScriptOptions sopts = ScriptOptions.Default
.WithImports("System", "System.Collections.Generic", "System.Linq", "System.Net.Http",
"System.Net.Http.Headers", "System.Reflection", "System.Text", "System.Text.RegularExpressions",
"System.Threading.Tasks", "DSharpPlus", "DSharpPlus.CommandsNext", "DSharpPlus.Entities",
"DSharpPlus.Interactivity")
.WithReferences(AppDomain.CurrentDomain.GetAssemblies().Where(xa => !xa.IsDynamic && !string.IsNullOrWhiteSpace(xa.Location)));
var sw1 = Stopwatch.StartNew();
Script <object> snippet = CSharpScript.Create(code, sopts, typeof(EvaluationEnvironment));
System.Collections.Immutable.ImmutableArray <Diagnostic> diag = snippet.Compile();
sw1.Stop();
if (diag.Any(d => d.Severity == DiagnosticSeverity.Error))
{
emb = new DiscordEmbedBuilder {
Title = "Compilation failed",
Description = $"Compilation failed after {sw1.ElapsedMilliseconds.ToString("#,##0")}ms with {diag.Length} errors.",
Color = DiscordColor.Red
};
foreach (Diagnostic d in diag.Take(3))
{
FileLinePositionSpan ls = d.Location.GetLineSpan();
emb.AddField($"Error at line: {ls.StartLinePosition.Line}, {ls.StartLinePosition.Character}", Formatter.InlineCode(d.GetMessage()));
}
if (diag.Length > 3)
{
emb.AddField("Some errors were omitted", $"{diag.Length - 3} errors not displayed");
}
if (!(msg is null))
{
msg = await msg.ModifyAsync(embed : emb.Build());
}
return;
}
Exception exc = null;
ScriptState <object> css = null;
var sw2 = Stopwatch.StartNew();
try {
css = await snippet.RunAsync(globals);
exc = css.Exception;
} catch (Exception e) {
exc = e;
}
sw2.Stop();
if (!(exc is null))
{
emb = new DiscordEmbedBuilder {
Title = "Execution failed",
Description = $"Execution failed after {sw2.ElapsedMilliseconds.ToString("#,##0")}ms with {Formatter.InlineCode($"{exc.GetType()} : {exc.Message}")}.",
Color = this.ModuleColor
};
if (!(msg is null))
{
msg = await msg.ModifyAsync(embed : emb.Build());
}
return;
}
emb = new DiscordEmbedBuilder {
Title = "Evaluation successful",
Color = DiscordColor.Aquamarine
};
emb.AddField("Result", css.ReturnValue is null ? "No value returned" : css.ReturnValue.ToString(), false);
emb.AddField("Compilation time", string.Concat(sw1.ElapsedMilliseconds.ToString("#,##0"), "ms"), true);
emb.AddField("Execution time", string.Concat(sw2.ElapsedMilliseconds.ToString("#,##0"), "ms"), true);
if (!(css.ReturnValue is null))
{
emb.AddField("Return type", css.ReturnValue.GetType().ToString(), true);
}
if (!(msg is null))
{
await msg.ModifyAsync(embed : emb.Build());
}