void InitializeExecutionEngine(bool loadConfig, bool showHelp)
{
Debug.Assert(execState == null);
if (execState != null)
{
throw new InvalidOperationException();
}
execState = new ExecState(this, new CancellationTokenSource());
var execStateCache = execState;
Task.Run(() => {
AppCulture.InitializeCulture();
execStateCache.CancellationTokenSource.Token.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.CancellationTokenSource.Token.ThrowIfCancellationRequested();
execStateCache.ScriptState = script.RunAsync(execStateCache.Globals, execStateCache.CancellationTokenSource.Token).Result;
if (showHelp)
{
this.replEditor.OutputPrintLine(Help);
}
}, execStateCache.CancellationTokenSource.Token)
.ContinueWith(t => {
execStateCache.IsInitializing = false;
var ex = t.Exception;
if (!t.IsCanceled && !t.IsFaulted)
{
CommandExecuted();
}
else
{
replEditor.OutputPrintLine(string.Format("Could not create the script:\n\n{0}", ex));
}
}, CancellationToken.None, TaskContinuationOptions.None, TaskScheduler.FromCurrentSynchronizationContext());
}
protected abstract void InitializeUserScriptOptions(UserScriptOptions options);
