///////////////////////////////////////////////////////////////////////
#region Private Constructors
//
// NOTE: For use by the associated InterpreterHelper.Create method
// overload ONLY.
//
private InterpreterHelper(
InterpreterSettings interpreterSettings,
bool strict,
ref Result result
)
{
interpreter = Interpreter.Create(
interpreterSettings, strict, ref result);
}
///////////////////////////////////////////////////////////////////////
#region Internal Static Methods
internal static ReturnCode UseStartupDefaults(
InterpreterSettings interpreterSettings,
CreateFlags createFlags,
ref Result error
)
{
if (interpreterSettings == null)
{
error = "invalid interpreter settings";
return(ReturnCode.Error);
}
//
// NOTE: Use the creation flags specified by the caller,
// ignoring the creation flags in the interpreter
// settings. If there are existing policies and/or
// traces, make sure the creation flags are modified
// to skip adding the default policies and/or traces
// during interpreter creation.
//
if (interpreterSettings.Policies != null)
{
createFlags |= CreateFlags.NoCorePolicies;
}
if (interpreterSettings.Traces != null)
{
createFlags |= CreateFlags.NoCoreTraces;
}
interpreterSettings.CreateFlags = createFlags;
//
// NOTE: The interpreter host may be disposed now -OR- may
// end up being disposed later, so avoid copying it.
//
interpreterSettings.Host = null;
//
// NOTE: Nulling these out is not necessary when the creation
// flags are modified to skip adding default policies
// and traces (above).
//
// interpreterSettings.Policies = null;
// interpreterSettings.Traces = null;
//
// NOTE: These startup settings are reset by this method to
// avoid having their values used when the command line
// arguments have been "locked" by the interpreter host.
//
interpreterSettings.Text = null;
interpreterSettings.LibraryPath = null;
return(ReturnCode.Ok);
}
///////////////////////////////////////////////////////////////////////
#region Static "Factory" Methods
public static InterpreterHelper Create(
AppDomain appDomain,
InterpreterSettings interpreterSettings,
bool strict,
ref Result result
)
{
if (appDomain == null)
{
result = "invalid application domain";
return(null);
}
if (assemblyName == null)
{
result = "invalid assembly name";
return(null);
}
if (typeName == null)
{
result = "invalid type name";
return(null);
}
try
{
object[] ctorArgs = { interpreterSettings, strict, result };
InterpreterHelper interpreterHelper =
(InterpreterHelper)appDomain.CreateInstanceAndUnwrap(
assemblyName.ToString(), typeName, false,
MarshalOps.PrivateCreateInstanceBindingFlags,
null, ctorArgs, null, null, null);
//
// NOTE: Grab the result as it may have been modified.
//
result = ctorArgs[ctorArgs.Length - 1] as Result;
return(interpreterHelper);
}
catch (Exception e)
{
result = e;
}
return(null);
}
///////////////////////////////////////////////////////////////////////
#if XML && SERIALIZATION
public static InterpreterSettings CreateFrom(
string fileName,
bool expand,
ref Result error
)
{
InterpreterSettings interpreterSettings = null;
if (LoadFrom(fileName, expand, ref interpreterSettings,
ref error) == ReturnCode.Ok)
{
return(interpreterSettings);
}
return(null);
}
///////////////////////////////////////////////////////////////////////
#region Public Static Methods
public static ReturnCode LoadFrom(
Interpreter interpreter,
bool expand,
ref InterpreterSettings interpreterSettings,
ref Result error
)
{
if (interpreter == null)
{
error = "invalid interpreter";
return(ReturnCode.Error);
}
if (interpreterSettings != null)
{
error = "cannot overwrite valid interpreter settings";
return(ReturnCode.Error);
}
try
{
InterpreterSettings localInterpreterSettings = Create();
if (FromInterpreter(
interpreter, localInterpreterSettings,
ref error) == ReturnCode.Ok)
{
if (expand)
{
Expand(localInterpreterSettings);
}
interpreterSettings = localInterpreterSettings;
return(ReturnCode.Ok);
}
}
catch (Exception e)
{
error = e;
}
return(ReturnCode.Error);
}
///////////////////////////////////////////////////////////////////////
private static void Expand(
InterpreterSettings interpreterSettings
)
{
if (interpreterSettings != null)
{
IEnumerable <string> args = interpreterSettings.Args;
if (args != null)
{
StringList newArgs = new StringList();
foreach (string arg in args)
{
newArgs.Add(Expand(arg));
}
interpreterSettings.Args = newArgs;
}
interpreterSettings.Culture = Expand(
interpreterSettings.Culture);
interpreterSettings.Profile = Expand(
interpreterSettings.Profile);
interpreterSettings.Text = Expand(interpreterSettings.Text);
interpreterSettings.LibraryPath = Expand(
interpreterSettings.LibraryPath);
StringList autoPathList = interpreterSettings.AutoPathList;
if (autoPathList != null)
{
for (int index = 0; index < autoPathList.Count; index++)
{
autoPathList[index] = Expand(autoPathList[index]);
}
}
}
}
///////////////////////////////////////////////////////////////////////
private static ReturnCode FromInterpreter(
Interpreter interpreter,
InterpreterSettings interpreterSettings,
ref Result error
)
{
if (interpreter == null)
{
error = "invalid interpreter";
return(ReturnCode.Error);
}
if (interpreterSettings == null)
{
error = "invalid interpreter settings";
return(ReturnCode.Error);
}
lock (interpreter.InternalSyncRoot) /* TRANSACTIONAL */
{
if (interpreter.PopulateInterpreterSettings(
ref interpreterSettings, ref error) != ReturnCode.Ok)
{
return(ReturnCode.Error);
}
interpreterSettings.CreateFlags = interpreter.CreateFlags;
interpreterSettings.InitializeFlags = interpreter.InitializeFlags;
interpreterSettings.ScriptFlags = interpreter.ScriptFlags;
interpreterSettings.InterpreterFlags = interpreter.InterpreterFlags;
interpreterSettings.Owner = interpreter.Owner;
interpreterSettings.ApplicationObject = interpreter.ApplicationObject;
interpreterSettings.PolicyObject = interpreter.PolicyObject;
interpreterSettings.ResolverObject = interpreter.ResolverObject;
interpreterSettings.UserObject = interpreter.UserObject;
interpreterSettings.LibraryPath = interpreter.LibraryPath;
}
return(ReturnCode.Ok);
}
///////////////////////////////////////////////////////////////////////
public static ReturnCode SaveTo(
string fileName,
bool expand,
InterpreterSettings interpreterSettings,
ref Result error
)
{
if (String.IsNullOrEmpty(fileName))
{
error = "invalid file name";
return(ReturnCode.Error);
}
if (File.Exists(fileName))
{
error = String.Format(
"cannot write \"{0}\": file already exists",
fileName);
return(ReturnCode.Error);
}
if (interpreterSettings == null)
{
error = "invalid interpreter settings";
return(ReturnCode.Error);
}
try
{
using (Stream stream = new FileStream(fileName,
FileMode.CreateNew, FileAccess.Write)) /* EXEMPT */
{
using (MemoryStream stream2 = new MemoryStream())
{
using (XmlTextWriter writer = new XmlTextWriter(
stream2, null))
{
if (expand)
{
Expand(interpreterSettings);
}
if (XmlOps.Serialize(
interpreterSettings,
typeof(InterpreterSettings), writer,
null, ref error) != ReturnCode.Ok)
{
return(ReturnCode.Error);
}
writer.Flush();
XmlDocument document;
using (MemoryStream stream3 = new MemoryStream(
stream2.ToArray(), false))
{
writer.Close();
document = new XmlDocument();
document.Load(stream3);
}
if (ToDocument(
document, interpreterSettings,
ref error) != ReturnCode.Ok)
{
return(ReturnCode.Error);
}
XmlWriterSettings writerSettings =
new XmlWriterSettings();
writerSettings.Indent = true;
using (XmlWriter writer2 = XmlWriter.Create(
stream, writerSettings))
{
document.WriteTo(writer2);
}
return(ReturnCode.Ok);
}
}
}
}
catch (Exception e)
{
error = e;
}
return(ReturnCode.Error);
}
///////////////////////////////////////////////////////////////////////
#if XML && SERIALIZATION
public static ReturnCode LoadFrom(
string fileName,
bool expand,
ref InterpreterSettings interpreterSettings,
ref Result error
)
{
if (String.IsNullOrEmpty(fileName))
{
error = "invalid file name";
return(ReturnCode.Error);
}
if (!File.Exists(fileName))
{
error = String.Format(
"cannot read \"{0}\": no such file",
fileName);
return(ReturnCode.Error);
}
if (interpreterSettings != null)
{
error = "cannot overwrite valid interpreter settings";
return(ReturnCode.Error);
}
try
{
XmlDocument document = new XmlDocument();
document.Load(fileName);
using (XmlNodeReader reader = new XmlNodeReader(document))
{
object @object = null;
if (XmlOps.Deserialize(
typeof(InterpreterSettings), reader,
ref @object, ref error) == ReturnCode.Ok)
{
InterpreterSettings localInterpreterSettings =
@object as InterpreterSettings;
if (FromDocument(document, localInterpreterSettings,
ref error) == ReturnCode.Ok)
{
if (expand)
{
Expand(localInterpreterSettings);
}
interpreterSettings = localInterpreterSettings;
return(ReturnCode.Ok);
}
}
}
}
catch (Exception e)
{
error = e;
}
return(ReturnCode.Error);
}
///////////////////////////////////////////////////////////////////////////////////////////////
private static ReturnCode ToDocument(
XmlDocument document,
InterpreterSettings interpreterSettings,
ref Result error
)
{
if (document == null)
{
error = "invalid xml document";
return(ReturnCode.Error);
}
if (interpreterSettings == null)
{
error = "invalid interpreter settings";
return(ReturnCode.Error);
}
XmlElement documentElement = document.DocumentElement;
if (documentElement == null)
{
error = "invalid xml document element";
return(ReturnCode.Error);
}
XmlNode node;
if (interpreterSettings.Args != null)
{
node = document.CreateElement("Args");
node.InnerText = new StringList(
interpreterSettings.Args).ToString();
documentElement.AppendChild(node);
}
node = document.CreateElement("CreateFlags");
node.InnerText = interpreterSettings.CreateFlags.ToString();
documentElement.AppendChild(node);
node = document.CreateElement("InitializeFlags");
node.InnerText = interpreterSettings.InitializeFlags.ToString();
documentElement.AppendChild(node);
node = document.CreateElement("ScriptFlags");
node.InnerText = interpreterSettings.ScriptFlags.ToString();
documentElement.AppendChild(node);
node = document.CreateElement("InterpreterFlags");
node.InnerText = interpreterSettings.InterpreterFlags.ToString();
documentElement.AppendChild(node);
if (interpreterSettings.AutoPathList != null)
{
node = document.CreateElement("AutoPathList");
node.InnerText = interpreterSettings.AutoPathList.ToString();
documentElement.AppendChild(node);
}
return(ReturnCode.Ok);
}
///////////////////////////////////////////////////////////////////////
#if XML
private static ReturnCode FromDocument(
XmlDocument document,
InterpreterSettings interpreterSettings,
ref Result error
)
{
if (document == null)
{
error = "invalid xml document";
return(ReturnCode.Error);
}
if (interpreterSettings == null)
{
error = "invalid interpreter settings";
return(ReturnCode.Error);
}
XmlElement documentElement = document.DocumentElement;
if (documentElement == null)
{
error = "invalid xml document element";
return(ReturnCode.Error);
}
XmlNode node;
node = documentElement.SelectSingleNode("Args");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
StringList list = null;
if (Parser.SplitList(
null, node.InnerText, 0, Length.Invalid, false,
ref list, ref error) == ReturnCode.Ok)
{
interpreterSettings.Args = list;
}
else
{
return(ReturnCode.Error);
}
}
node = documentElement.SelectSingleNode("CreateFlags");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
object enumValue = EnumOps.TryParseEnum(
typeof(CreateFlags), node.InnerText,
true, true, ref error);
if (enumValue is CreateFlags)
{
interpreterSettings.CreateFlags = (CreateFlags)enumValue;
}
else
{
return(ReturnCode.Error);
}
}
node = documentElement.SelectSingleNode("InitializeFlags");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
object enumValue = EnumOps.TryParseEnum(
typeof(InitializeFlags), node.InnerText,
true, true, ref error);
if (enumValue is InitializeFlags)
{
interpreterSettings.InitializeFlags = (InitializeFlags)enumValue;
}
else
{
return(ReturnCode.Error);
}
}
node = documentElement.SelectSingleNode("ScriptFlags");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
object enumValue = EnumOps.TryParseEnum(
typeof(ScriptFlags), node.InnerText,
true, true, ref error);
if (enumValue is ScriptFlags)
{
interpreterSettings.ScriptFlags = (ScriptFlags)enumValue;
}
else
{
return(ReturnCode.Error);
}
}
node = documentElement.SelectSingleNode("InterpreterFlags");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
object enumValue = EnumOps.TryParseEnum(
typeof(InterpreterFlags), node.InnerText,
true, true, ref error);
if (enumValue is InterpreterFlags)
{
interpreterSettings.InterpreterFlags = (InterpreterFlags)enumValue;
}
else
{
return(ReturnCode.Error);
}
}
node = documentElement.SelectSingleNode("AutoPathList");
if ((node != null) && !String.IsNullOrEmpty(node.InnerText))
{
StringList list = null;
if (Parser.SplitList(
null, node.InnerText, 0, Length.Invalid, false,
ref list, ref error) == ReturnCode.Ok)
{
interpreterSettings.AutoPathList = list;
}
else
{
return(ReturnCode.Error);
}
}
return(ReturnCode.Ok);
}
