void IScriptGlobalsHelper.PrintLine(ScriptGlobals globals, object color, Exception ex)
{
if (!IsCurrentScript(globals))
{
return;
}
ReplEditor.OutputPrintLine(Format(ex), color);
}
void IScriptGlobalsHelper.Write(ScriptGlobals globals, List <ColorAndText> list)
{
if (!IsCurrentScript(globals))
{
return;
}
ReplEditor.OutputPrint(list.Select(a => new ColorAndText(a.Color, a.Text)));
}
void IScriptGlobalsHelper.PrintLine(ScriptGlobals globals, object color, string text)
{
if (!IsCurrentScript(globals))
{
return;
}
ReplEditor.OutputPrintLine(text, color);
}
public void OnVisible()
{
if (hasInitialized)
{
return;
}
hasInitialized = true;
ReplEditor.OutputPrintLine(Logo, BoxedTextColor.ReplOutputText);
InitializeExecutionEngine(true, true);
}
void InitializeExecutionEngine(bool loadConfig, bool showHelp)
{
Debug.Assert(execState == null);
if (execState != null)
{
throw new InvalidOperationException();
}
execState = new ExecState(this, dispatcher, new CancellationTokenSource());
var execStateCache = execState;
Task.Run(() => {
execStateCache.CancellationToken.ThrowIfCancellationRequested();
var userOpts = new UserScriptOptions();
if (loadConfig)
{
userOpts.LibPaths.AddRange(GetDefaultLibPaths());
userOpts.LoadPaths.AddRange(GetDefaultLoadPaths());
InitializeUserScriptOptions(userOpts);
}
var opts = ScriptOptions.Default;
opts = opts.WithMetadataResolver(ScriptMetadataResolver.Default
.WithBaseDirectory(AppDirectories.BinDirectory)
.WithSearchPaths(userOpts.LibPaths.Distinct(StringComparer.OrdinalIgnoreCase)));
opts = opts.WithSourceResolver(ScriptSourceResolver.Default
.WithBaseDirectory(AppDirectories.BinDirectory)
.WithSearchPaths(userOpts.LoadPaths.Distinct(StringComparer.OrdinalIgnoreCase)));
opts = opts.WithImports(userOpts.Imports);
opts = opts.WithReferences(userOpts.References);
execStateCache.ScriptOptions = opts;
var script = Create <object>(string.Empty, execStateCache.ScriptOptions, typeof(IScriptGlobals), null);
execStateCache.CancellationToken.ThrowIfCancellationRequested();
execStateCache.ScriptState = script.RunAsync(execStateCache.Globals, execStateCache.CancellationToken).Result;
if (showHelp)
{
ReplEditor.OutputPrintLine(Help, BoxedTextColor.ReplOutputText);
}
}, execStateCache.CancellationToken)
.ContinueWith(t => {
execStateCache.IsInitializing = false;
var ex = t.Exception;
if (!t.IsCanceled && !t.IsFaulted)
{
CommandExecuted();
}
else
{
ReplEditor.OutputPrintLine($"Could not create the script:\n\n{ex}", BoxedTextColor.Error, true);
}
}, CancellationToken.None, TaskContinuationOptions.None, TaskScheduler.FromCurrentSynchronizationContext());
}
void ObjectOutput(object color, PrintOptionsImpl printOptions, object value, bool startOnNewLine = false)
{
var writable = GetOutputWritable(printOptions, value);
if (writable != null)
{
writable.WriteTo(OutputWriter.Create(this, startOnNewLine));
}
else
{
ReplEditor.OutputPrint(Format(value, printOptions.RoslynPrintOptions), color, startOnNewLine);
}
}
public void ExecuteCommand(string input)
{
try {
if (!ExecuteCommandInternal(input))
{
CommandExecuted();
}
}
catch (Exception ex) {
ReplEditor.OutputPrint(ex.ToString(), BoxedTextColor.Error, true);
CommandExecuted();
}
}
protected override void InitializeUserScriptOptions(UserScriptOptions options)
{
var rspFile = GetResponseFile("CSharpInteractive.rsp");
if (rspFile == null)
{
return;
}
ReplEditor.OutputPrintLine(string.Format(dnSpy_Scripting_Roslyn_Resources.LoadingContextFromFile, Path.GetFileName(rspFile)), BoxedTextColor.ReplOutputText);
foreach (var t in ResponseFileReader.Read(rspFile))
{
switch (t.Item1.ToLowerInvariant())
{
case "r":
case "reference":
options.References.AddRange(RespFileUtils.GetReferences(t.Item2));
break;
case "u":
case "using":
case "usings":
case "import":
case "imports":
options.Imports.AddRange(t.Item2.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries));
break;
case "lib":
case "libpath":
case "libpaths":
options.LibPaths.AddRange(RespFileUtils.GetReferencePaths(t.Item2));
break;
case "loadpath":
case "loadpaths":
options.LoadPaths.AddRange(RespFileUtils.GetReferencePaths(t.Item2));
break;
default:
Debug.Fail($"Unknown option: '{t.Item1}'");
break;
}
}
}
void PrintDiagnostics(ImmutableArray <Diagnostic> diagnostics)
{
const int MAX_DIAGS = 5;
for (int i = 0; i < diagnostics.Length && i < MAX_DIAGS; i++)
{
ReplEditor.OutputPrintLine(DiagnosticFormatter.Format(diagnostics[i], Thread.CurrentThread.CurrentUICulture), BoxedTextColor.Error, true);
}
int extraErrors = diagnostics.Length - MAX_DIAGS;
if (extraErrors > 0)
{
if (extraErrors == 1)
{
ReplEditor.OutputPrintLine(string.Format(dnSpy_Scripting_Roslyn_Resources.CompilationAdditionalError, extraErrors), BoxedTextColor.Error, true);
}
else
{
ReplEditor.OutputPrintLine(string.Format(dnSpy_Scripting_Roslyn_Resources.CompilationAdditionalErrors, extraErrors), BoxedTextColor.Error, true);
}
}
}
public void Reset(bool loadConfig = true)
{
if (!CanReset)
{
return;
}
if (execState != null)
{
execState.CancellationTokenSource.Cancel();
try {
execState.Globals.RaiseScriptReset();
}
catch {
// Ignore buggy script exceptions
}
execState.CancellationTokenSource.Dispose();
}
isResetting = true;
execState = null;
ReplEditor.Reset();
isResetting = false;
ReplEditor.OutputPrintLine(dnSpy_Scripting_Roslyn_Resources.ResettingExecutionEngine, BoxedTextColor.ReplOutputText);
InitializeExecutionEngine(loadConfig, false);
}
public void SaveCode() => ReplEditor.SaveCode(CodeFilenameNoExtension, CodeFileExtension, CodeFilterText);
public void SaveText() => ReplEditor.SaveText(TextFilenameNoExtension, "txt", TEXTFILES_FILTER);
void ObjectOutputLine(object color, PrintOptionsImpl printOptions, object value, bool startOnNewLine = false)
{
ObjectOutput(color, printOptions, value, startOnNewLine);
ReplEditor.OutputPrintLine(string.Empty, color);
}
bool ExecuteCommandInternal(string input)
{
Debug.Assert(execState != null && !execState.IsInitializing);
if (execState == null || execState.IsInitializing)
{
return(true);
}
lock (lockObj) {
Debug.Assert(execState.ExecTask == null && !execState.Executing);
if (execState.ExecTask != null || execState.Executing)
{
return(true);
}
execState.Executing = true;
}
try {
var scState = ParseScriptCommand(input);
if (scState != null)
{
if (execState != null)
{
lock (lockObj)
execState.Executing = false;
}
scState.Command.Execute(this, scState.Arguments);
bool isReset = scState.Command is ResetCommand;
if (!isReset)
{
CommandExecuted();
}
return(true);
}
var oldState = execState;
var taskSched = TaskScheduler.FromCurrentSynchronizationContext();
Task.Run(() => {
oldState.CancellationToken.ThrowIfCancellationRequested();
var opts = oldState.ScriptOptions.WithReferences(Array.Empty <MetadataReference>()).WithImports(Array.Empty <string>());
var execTask = oldState.ScriptState.ContinueWithAsync(input, opts, oldState.CancellationToken);
oldState.CancellationToken.ThrowIfCancellationRequested();
lock (lockObj) {
if (oldState == execState)
{
oldState.ExecTask = execTask;
}
}
execTask.ContinueWith(t => {
var ex = t.Exception;
bool isActive;
lock (lockObj) {
isActive = oldState == execState;
if (isActive)
{
oldState.ExecTask = null;
}
}
if (isActive)
{
try {
if (ex != null)
{
this.ReplEditor.OutputPrint(Format(ex.InnerException), BoxedTextColor.Error, true);
}
if (!t.IsCanceled && !t.IsFaulted)
{
oldState.ScriptState = t.Result;
var val = t.Result.ReturnValue;
if (val != null)
{
ObjectOutputLine(BoxedTextColor.ReplOutputText, oldState.Globals.PrintOptionsImpl, val, true);
}
}
}
finally {
CommandExecuted();
}
}
}, CancellationToken.None, TaskContinuationOptions.None, taskSched);
})
.ContinueWith(t => {
if (execState != null)
{
lock (lockObj)
execState.Executing = false;
}
var innerEx = t.Exception?.InnerException;
if (innerEx is CompilationErrorException)
{
var cee = (CompilationErrorException)innerEx;
PrintDiagnostics(cee.Diagnostics);
CommandExecuted();
}
else if (innerEx is OperationCanceledException)
{
CommandExecuted();
}
else
{
var ex = t.Exception;
if (ex != null)
{
this.ReplEditor.OutputPrint(ex.ToString(), BoxedTextColor.Error, true);
CommandExecuted();
}
}
}, CancellationToken.None, TaskContinuationOptions.None, taskSched);
return(true);
}
catch (Exception ex) {
if (execState != null)
{
lock (lockObj)
execState.Executing = false;
}
ReplEditor.OutputPrintLine($"Error executing script:\n\n{ex}", BoxedTextColor.Error, true);
return(false);
}
}
void CommandExecuted()
{
ReplEditor.OnCommandExecuted();
OnCommandExecuted?.Invoke(this, EventArgs.Empty);
}
