SystemRestart exception to restart the interpreter

src/org/python/core/Py.java

 // Copyright (c) Corporation for National Research Initiatives
 package org.python.core;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.InputStream;
 import java.io.ObjectStreamException;
 import java.io.OutputStream;
@@ skipping 194 matching lines @@
 
     public static PyException NameError(String message) {
         return new PyException(Py.NameError, message);
     }
     public static PyObject UnboundLocalError;
 
     public static PyException UnboundLocalError(String message) {
         return new PyException(Py.UnboundLocalError, message);
     }
     public static PyObject SystemExit;
+

[fwierzbicki, 2008/08/04 13:42:57]

We should comment this as being experimental.

+    /**
+     * Jython-specific exception for restarting the interpreter. Currently
+     * supported only by jython.java, when executing a file (i.e,
+     * non-interactive mode)
+     */
+    public static PyObject SystemRestart;
+    public static PyException SystemRestart() {
+        return new PyException(Py.SystemRestart);
+    }
+
 
     static void maybeSystemExit(PyException exc) {
         if (Py.matchException(exc, Py.SystemExit)) {
             PyObject value = exc.value;
             if (PyException.isExceptionInstance(exc.value)) {
                 value = value.__findattr__("code");
             }
             Py.getSystemState().callExitFunc();
             if (value instanceof PyInteger) {
                 System.exit(((PyInteger) value).getValue());
@@ skipping 473 matching lines @@
         dict.__setitem__(name, tmp);
         return tmp;
     }
 
     static void initClassExceptions(PyObject dict) {
         PyObject exc = imp.load("exceptions");
 
         BaseException = initExc("BaseException", exc, dict);
         Exception = initExc("Exception", exc, dict);
         SystemExit = initExc("SystemExit", exc, dict);
+        SystemRestart = initExc("SystemRestart", exc, dict);
         StopIteration = initExc("StopIteration", exc, dict);
         GeneratorExit = initExc("GeneratorExit", exc, dict);
         StandardError = initExc("StandardError", exc, dict);
         KeyboardInterrupt = initExc("KeyboardInterrupt", exc, dict);
         ImportError = initExc("ImportError", exc, dict);
         EnvironmentError = initExc("EnvironmentError", exc, dict);
         IOError = initExc("IOError", exc, dict);
         OSError = initExc("OSError", exc, dict);
         EOFError = initExc("EOFError", exc, dict);
         RuntimeError = initExc("RuntimeError", exc, dict);
@@ skipping 1318 matching lines @@
         if (container == null) {
             return this;
         }
         return new PyMethod(this, container, wherefound);
     }
 
     public boolean _doset(PyObject container) {
         throw Py.TypeError("java function not settable: " + method.getName());
     }
 }