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diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeScript.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeScript.java
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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Norris Boyd
+ *   Igor Bukanov
+ *   Roger Lawrence
+ *   Mike McCabe
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.javascript;
+
+/**
+ * The JavaScript Script object.
+ *
+ * Note that the C version of the engine uses XDR as the format used
+ * by freeze and thaw. Since this depends on the internal format of
+ * structures in the C runtime, we cannot duplicate it.
+ *
+ * Since we cannot replace 'this' as a result of the compile method,
+ * will forward requests to execute to the nonnull 'script' field.
+ *
+ * @since 1.3
+ * @author Norris Boyd
+ */
+
+class NativeScript extends BaseFunction
+{
+    static final long serialVersionUID = -6795101161980121700L;
+
+    private static final Object SCRIPT_TAG = new Object();
+
+    static void init(Scriptable scope, boolean sealed)
+    {
+        NativeScript obj = new NativeScript(null);
+        obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);
+    }
+
+    private NativeScript(Script script)
+    {
+        this.script = script;
+    }
+
+    /**
+     * Returns the name of this JavaScript class, "Script".
+     */
+    public String getClassName()
+    {
+        return "Script";
+    }
+
+    public Object call(Context cx, Scriptable scope, Scriptable thisObj,
+                       Object[] args)
+    {
+        if (script != null) {
+            return script.exec(cx, scope);
+        }
+        return Undefined.instance;
+    }
+
+    public Scriptable construct(Context cx, Scriptable scope, Object[] args)
+    {
+        throw Context.reportRuntimeError0("msg.script.is.not.constructor");
+    }
+
+    public int getLength()
+    {
+        return 0;
+    }
+
+    public int getArity()
+    {
+        return 0;
+    }
+
+    String decompile(int indent, int flags)
+    {
+        if (script instanceof NativeFunction) {
+            return ((NativeFunction)script).decompile(indent, flags);
+        }
+        return super.decompile(indent, flags);
+    }
+
+    protected void initPrototypeId(int id)
+    {
+        String s;
+        int arity;
+        switch (id) {
+          case Id_constructor: arity=1; s="constructor"; break;
+          case Id_toString:    arity=0; s="toString";    break;
+          case Id_exec:        arity=0; s="exec";        break;
+          case Id_compile:     arity=1; s="compile";     break;
+          default: throw new IllegalArgumentException(String.valueOf(id));
+        }
+        initPrototypeMethod(SCRIPT_TAG, id, s, arity);
+    }
+
+    public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,
+                             Scriptable thisObj, Object[] args)
+    {
+        if (!f.hasTag(SCRIPT_TAG)) {
+            return super.execIdCall(f, cx, scope, thisObj, args);
+        }
+        int id = f.methodId();
+        switch (id) {
+          case Id_constructor: {
+            String source = (args.length == 0)
+                            ? ""
+                            : ScriptRuntime.toString(args[0]);
+            Script script = compile(cx, source);
+            NativeScript nscript = new NativeScript(script);
+            ScriptRuntime.setObjectProtoAndParent(nscript, scope);
+            return nscript;
+          }
+
+          case Id_toString: {
+            NativeScript real = realThis(thisObj, f);
+            Script realScript = real.script;
+            if (realScript == null) { return ""; }
+            return cx.decompileScript(realScript, 0);
+          }
+
+          case Id_exec: {
+            throw Context.reportRuntimeError1(
+                "msg.cant.call.indirect", "exec");
+          }
+
+          case Id_compile: {
+            NativeScript real = realThis(thisObj, f);
+            String source = ScriptRuntime.toString(args, 0);
+            real.script = compile(cx, source);
+            return real;
+          }
+        }
+        throw new IllegalArgumentException(String.valueOf(id));
+    }
+
+    private static NativeScript realThis(Scriptable thisObj, IdFunctionObject f)
+    {
+        if (!(thisObj instanceof NativeScript))
+            throw incompatibleCallError(f);
+        return (NativeScript)thisObj;
+    }
+
+    private static Script compile(Context cx, String source)
+    {
+        int[] linep = { 0 };
+        String filename = Context.getSourcePositionFromStack(linep);
+        if (filename == null) {
+            filename = "<Script object>";
+            linep[0] = 1;
+        }
+        ErrorReporter reporter;
+        reporter = DefaultErrorReporter.forEval(cx.getErrorReporter());
+        return cx.compileString(source, null, reporter, filename,
+                                linep[0], null);
+    }
+
+// #string_id_map#
+
+    protected int findPrototypeId(String s)
+    {
+        int id;
+// #generated# Last update: 2007-05-09 08:16:01 EDT
+        L0: { id = 0; String X = null;
+            L: switch (s.length()) {
+            case 4: X="exec";id=Id_exec; break L;
+            case 7: X="compile";id=Id_compile; break L;
+            case 8: X="toString";id=Id_toString; break L;
+            case 11: X="constructor";id=Id_constructor; break L;
+            }
+            if (X!=null && X!=s && !X.equals(s)) id = 0;
+            break L0;
+        }
+// #/generated#
+        return id;
+    }
+
+    private static final int
+        Id_constructor    = 1,
+        Id_toString       = 2,
+        Id_compile        = 3,
+        Id_exec           = 4,
+        MAX_PROTOTYPE_ID  = 4;
+
+// #/string_id_map#
+
+    private Script script;
+}
+