public Interp()
{
InitBlock();
//freeProc = null;
_errorLine = 0;
// An empty result is used pretty often. We will use a shared TclObject instance to represent the empty result so that we
// don't need to create a new TclObject instance every time the interpreter result is set to empty.
_nullResult = TclString.NewInstance(string.Empty);
_nullResult.Preserve(); // Increment refCount to 1
_nullResult.Preserve(); // Increment refCount to 2 (shared)
_result = TclString.NewInstance(string.Empty); // _nullResult; // correcponds to iPtr->objResultPtr
_result.Preserve();
//
_expr = new Expression();
_nestLevel = 0;
_maxNestingDepth = 1000;
//
Frame = null;
VarFrame = null;
//
_returnCode = TCL.CompletionCode.OK;
_errorInfo = null;
_errorCode = null;
//
_packageTable = new Hashtable();
_packageUnknown = null;
_cmdCount = 0;
_termOffset = 0;
_resolvers = null;
_evalFlags = 0;
_scriptFile = null;
_flags = 0;
_isSafe = false;
_assocData = null;
//
GlobalNS = NamespaceCmd.createNamespace(this, null, null);
if (GlobalNS == null)
throw new TclRuntimeError("Interp(): can't create global namespace");
// Init things that are specific to the Jacl implementation
_workingDir = new FileInfo(System.Environment.CurrentDirectory);
NoEval = 0;
//
_notifier = Notifier.GetNotifierForThread(System.Threading.Thread.CurrentThread);
_notifier.Preserve();
//
RandSeedInit = false;
//
_deleted = false;
_errInProgress = false;
_errAlreadyLogged = false;
_errCodeSet = false;
//
_dbg = initDebugInfo();
//
_slaveTable = new Hashtable();
_targetTable = new Hashtable();
_aliasTable = new Hashtable();
// init parser variables
Parser.init(this);
TclParse.init(this);
// Initialize the Global (static) channel table and the local interp channel table.
_interpChanTable = TclIO.getInterpChanTable(this);
// Sets up the variable trace for tcl_precision.
Util.setupPrecisionTrace(this);
// Create the built-in commands.
CreateCommands();
try
{
// Set up tcl_platform, tcl_version, tcl_library and other global variables.
SetVar("tcl_platform", "platform", "windows", TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_platform", "byteOrder", "bigEndian", TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_platform", "os", Environment.OSVersion.Platform.ToString(), TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_platform", "osVersion", Environment.OSVersion.Version.ToString(), TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_platform", "machine", Util.tryGetSystemProperty("os.arch", "?"), TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_version", TCL_VERSION, TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_patchLevel", TCL_PATCH_LEVEL, TCL.VarFlag.GLOBAL_ONLY);
SetVar("tcl_library", "resource:/tcl/lang/library", TCL.VarFlag.GLOBAL_ONLY);
if (Util.Windows)
SetVar("tcl_platform", "host_platform", "windows", TCL.VarFlag.GLOBAL_ONLY);
else if (Util.Mac)
SetVar("tcl_platform", "host_platform", "macintosh", TCL.VarFlag.GLOBAL_ONLY);
else
SetVar("tcl_platform", "host_platform", "unix", TCL.VarFlag.GLOBAL_ONLY);
// Create the env array an populated it with proper values.
Env.initialize(this);
// Register Tcl's version number. Note: This MUST be done before the call to evalResource, otherwise
// calls to "package require tcl" will fail.
pkgProvide("Tcl", TCL_VERSION);
// Source the init.tcl script to initialize auto-loading.
evalResource("/tcl/lang/library/init.tcl");
}
catch (TclException e)
{
Debug.WriteLine(GetResult().ToString());
SupportClass.WriteStackTrace(e, Console.Error);
throw new TclRuntimeError("unexpected TclException: " + e.Message, e);
}
}