public Extension(String path)
{
_extensionPath = path;
_engine = new ScriptEngine();
_watcher = new FileSystemWatcher(path) { EnableRaisingEvents = true };
_watcher.Changed += _watcher_Changed;
String entryPoint = Path.Combine(path, "extension.js");
if (!File.Exists(entryPoint)) {
throw new Exception("Extension must contain an extension.js file.");
}
var files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories).ToList();
foreach (var filePath in files) {
var file = new FileInfo(filePath);
_watchedFiles.Add(filePath, file.LastWriteTimeUtc);
}
_engine.SetNamedItem("lumen", new LumenScript(this));
try {
LoadScript(Path.Combine(path, @"..\common.js"));
_parsed = LoadScript(entryPoint);
__extension = new ParsedScript(_engine, _engine.Eval(_extensionIdent));
ExtensionManager.Current.Add(this);
}
catch (ScriptException ex) {
var s = _scripts.FromLineNumber(ex.Line);
ex.Line = s.TranslateLineNumber(ex.Line);
System.Windows.MessageBox.Show(ex.ErrorType + ": " + ex.Description + "\t\t\t" + s.Name + ":" + ex.Line);
}
}
private object Parse(string text, bool expression)
{
const string varName = "x___";
System.Runtime.InteropServices.ComTypes.EXCEPINFO exceptionInfo;
object result;
IntPtr dispatch;
ScriptText flags = ScriptText.None;
_engine.SetScriptState(ScriptState.Connected);
if (expression) {
flags |= ScriptText.IsExpression;
}
try { // immediate expression computation seems to work only for 64-bit so hack something for 32-bit...
if (_parse32 != null) {
if (expression) {
text = varName + "=" + text; // should work for jscript & vbscript at least...
}
_parse32.ParseScriptText(text, null, null, null, IntPtr.Zero, 0, flags, out result, out exceptionInfo);
}
else {
_parse64.ParseScriptText(text, null, null, null, IntPtr.Zero, 0, flags, out result, out exceptionInfo);
}
}
catch {
if (_site._lastException != null) {
throw _site._lastException;
}
throw;
}
if (expression) { // continue 32-bit hack...
if (_parse32 != null) {
_engine.GetScriptDispatch(null, out dispatch);
object dp = Marshal.GetObjectForIUnknown(dispatch);
try {
var res = dp.GetType().InvokeMember(varName, BindingFlags.GetProperty, null, dp, null);
return res;
}
catch {
if (_site._lastException != null)
throw _site._lastException;
throw;
}
}
return result;
}
_engine.GetScriptDispatch(null, out dispatch);
ParsedScript parsed = new ParsedScript(this, dispatch);
return parsed;
}
private object Parse(string text, bool expression)
{
const string varName = "x___";
System.Runtime.InteropServices.ComTypes.EXCEPINFO exceptionInfo;
object result;
IntPtr dispatch;
ScriptText flags = ScriptText.None;
_engine.SetScriptState(ScriptState.Connected);
if (expression)
{
flags |= ScriptText.IsExpression;
}
try { // immediate expression computation seems to work only for 64-bit so hack something for 32-bit...
if (_parse32 != null)
{
if (expression)
{
text = varName + "=" + text; // should work for jscript & vbscript at least...
}
_parse32.ParseScriptText(text, null, null, null, IntPtr.Zero, 0, flags, out result, out exceptionInfo);
}
else
{
_parse64.ParseScriptText(text, null, null, null, IntPtr.Zero, 0, flags, out result, out exceptionInfo);
}
}
catch {
if (_site._lastException != null)
{
throw _site._lastException;
}
throw;
}
if (expression) // continue 32-bit hack...
{
if (_parse32 != null)
{
_engine.GetScriptDispatch(null, out dispatch);
object dp = Marshal.GetObjectForIUnknown(dispatch);
try {
var res = dp.GetType().InvokeMember(varName, BindingFlags.GetProperty, null, dp, null);
return(res);
}
catch {
if (_site._lastException != null)
{
throw _site._lastException;
}
throw;
}
}
return(result);
}
_engine.GetScriptDispatch(null, out dispatch);
ParsedScript parsed = new ParsedScript(this, dispatch);
return(parsed);
}
