public override Task <TReturn> Execute <TReturn, THost>(ScriptContext context, THost host)
{
Logger.Log("Using debug mode.");
Logger.Log($"Using configuration: {context.Configuration}");
var compilationContext = ScriptCompiler.CreateCompilationContext <TReturn, THost>(context);
var compilation = compilationContext.Script.GetCompilation();
foreach (var diagnostic in compilation.GetDiagnostics().Where(d => d.Severity == DiagnosticSeverity.Warning))
{
Logger.Log(diagnostic.ToString());
}
foreach (var syntaxTree in compilation.SyntaxTrees)
{
// https://github.com/dotnet/roslyn/blob/version-2.0.0-beta4/src/Compilers/CSharp/Portable/Syntax/CSharpSyntaxTree.ParsedSyntaxTree.cs#L19
var encodingField = syntaxTree.GetType().GetField("_encodingOpt", BindingFlags.Instance | BindingFlags.NonPublic);
encodingField.SetValue(syntaxTree, Encoding.UTF8);
// https://github.com/dotnet/roslyn/blob/version-2.0.0-beta4/src/Compilers/CSharp/Portable/Syntax/CSharpSyntaxTree.ParsedSyntaxTree.cs#L21
var lazyTextField = syntaxTree.GetType().GetField("_lazyText", BindingFlags.Instance | BindingFlags.NonPublic);
lazyTextField.SetValue(syntaxTree, compilationContext.SourceText);
}
using (var peStream = new MemoryStream())
using (var pdbStream = new MemoryStream())
{
var emitOptions = new EmitOptions().WithDebugInformationFormat(DebugInformationFormat.PortablePdb);
var emitResult = compilation.Emit(peStream, pdbStream, null, null, null, emitOptions);
if (emitResult.Success)
{
// https://github.com/dotnet/roslyn/blob/version-2.0.0-beta4/src/Compilers/Core/Portable/Compilation/Compilation.cs#L478
var referenceManager = compilation.Invoke <object>("GetBoundReferenceManager", BindingFlags.NonPublic);
var referencedAssemblies =
// https://github.com/dotnet/roslyn/blob/version-2.0.0-beta4/src/Compilers/Core/Portable/ReferenceManager/CommonReferenceManager.State.cs#L34
referenceManager.Invoke <IEnumerable <KeyValuePair <MetadataReference, IAssemblySymbol> > >("GetReferencedAssemblies", BindingFlags.NonPublic);
foreach (var referencedAssembly in referencedAssemblies)
{
var path = (referencedAssembly.Key as PortableExecutableReference)?.FilePath;
if (path != null)
{
compilationContext.Loader.RegisterDependency(referencedAssembly.Value.Identity, path);
}
}
peStream.Position = 0;
pdbStream.Position = 0;
var assembly =
// https://github.com/dotnet/roslyn/blob/version-2.0.0-beta4/src/Scripting/Core/Hosting/AssemblyLoader/InteractiveAssemblyLoader.cs#L111
compilationContext.Loader.Invoke <Stream, Stream, Assembly>(
"LoadAssemblyFromStream", BindingFlags.NonPublic,
peStream, pdbStream);
var entryPoint = compilation.GetEntryPoint(default(CancellationToken));
var entryPointType = assembly.GetType(entryPoint.ContainingType.MetadataName, true, false).GetTypeInfo();
var resultTask =
entryPointType.
GetDeclaredMethod(entryPoint.MetadataName).
Invoke <object[], Task <TReturn> >(
(object)null, // static invocation
new object[] { host, null });
return(resultTask);
}
}
return(Task.FromResult(default(TReturn)));
}
public ScriptEmitter(ScriptConsole scriptConsole, ScriptCompiler scriptCompiler)
{
_scriptConsole = scriptConsole;
_scriptCompiler = scriptCompiler;
}
public DebugScriptRunner(ScriptCompiler scriptCompiler, ScriptLogger logger) : base(scriptCompiler, logger)
{
}
public ScriptRunner(ScriptCompiler scriptCompiler, ScriptLogger logger)
{
Logger = logger;
ScriptCompiler = scriptCompiler;
}