reverted folder structure change for better mergeing with upstream

1 files changed, 0 insertions, 3830 deletions

diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/ScriptRuntime.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/ScriptRuntime.java
deleted file mode 100644
index f879581..0000000
--- a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/ScriptRuntime.java
+++ /dev/null
@@ -1,3830 +0,0 @@
-/* -*- 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) 1997-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *   Patrick Beard
- *   Norris Boyd
- *   Igor Bukanov
- *   Ethan Hugg
- *   Bob Jervis
- *   Roger Lawrence
- *   Terry Lucas
- *   Frank Mitchell
- *   Milen Nankov
- *   Hannes Wallnoefer
- *   Andrew Wason
- *
- * 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;
-
-import java.io.Serializable;
-import java.lang.reflect.*;
-import java.text.MessageFormat;
-import java.util.Locale;
-import java.util.ResourceBundle;
-
-import org.mozilla.javascript.xml.XMLObject;
-import org.mozilla.javascript.xml.XMLLib;
-
-/**
- * This is the class that implements the runtime.
- *
- * @author Norris Boyd
- */
-
-public class ScriptRuntime {
-
-    /**
-     * No instances should be created.
-     */
-    protected ScriptRuntime() {
-    }
-
-    private static class NoSuchMethodShim implements Callable {
-        String methodName;
-        Callable noSuchMethodMethod;
-
-        NoSuchMethodShim(Callable noSuchMethodMethod, String methodName)
-        {
-            this.noSuchMethodMethod = noSuchMethodMethod;
-            this.methodName = methodName;
-        }
-        /**
-         * Perform the call.
-         *
-         * @param cx the current Context for this thread
-         * @param scope the scope to use to resolve properties.
-         * @param thisObj the JavaScript <code>this</code> object
-         * @param args the array of arguments
-         * @return the result of the call
-         */
-        public Object call(Context cx, Scriptable scope, Scriptable thisObj,
-                           Object[] args)
-        {
-            Object[] nestedArgs = new Object[2];
-
-            nestedArgs[0] = methodName;
-            nestedArgs[1] = newArrayLiteral(args, null, cx, scope);
-            return noSuchMethodMethod.call(cx, scope, thisObj, nestedArgs);
-        }
-
-    }
-    /*
-     * There's such a huge space (and some time) waste for the Foo.class
-     * syntax: the compiler sticks in a test of a static field in the
-     * enclosing class for null and the code for creating the class value.
-     * It has to do this since the reference has to get pushed off until
-     * execution time (i.e. can't force an early load), but for the
-     * 'standard' classes - especially those in java.lang, we can trust
-     * that they won't cause problems by being loaded early.
-     */
-
-    public final static Class
-        BooleanClass      = Kit.classOrNull("java.lang.Boolean"),
-        ByteClass         = Kit.classOrNull("java.lang.Byte"),
-        CharacterClass    = Kit.classOrNull("java.lang.Character"),
-        ClassClass        = Kit.classOrNull("java.lang.Class"),
-        DoubleClass       = Kit.classOrNull("java.lang.Double"),
-        FloatClass        = Kit.classOrNull("java.lang.Float"),
-        IntegerClass      = Kit.classOrNull("java.lang.Integer"),
-        LongClass         = Kit.classOrNull("java.lang.Long"),
-        NumberClass       = Kit.classOrNull("java.lang.Number"),
-        ObjectClass       = Kit.classOrNull("java.lang.Object"),
-        ShortClass        = Kit.classOrNull("java.lang.Short"),
-        StringClass       = Kit.classOrNull("java.lang.String"),
-        DateClass         = Kit.classOrNull("java.util.Date");
-
-    public final static Class
-        ContextClass
-            = Kit.classOrNull("org.mozilla.javascript.Context"),
-        ContextFactoryClass
-            = Kit.classOrNull("org.mozilla.javascript.ContextFactory"),
-        FunctionClass
-            = Kit.classOrNull("org.mozilla.javascript.Function"),
-        ScriptableClass
-            = Kit.classOrNull("org.mozilla.javascript.Scriptable"),
-        ScriptableObjectClass
-            = Kit.classOrNull("org.mozilla.javascript.ScriptableObject");
-
-    private static final String[] lazilyNames = {
-        "RegExp",        "org.mozilla.javascript.regexp.NativeRegExp",
-        "Packages",      "org.mozilla.javascript.NativeJavaTopPackage",
-        "java",          "org.mozilla.javascript.NativeJavaTopPackage",
-        "javax",         "org.mozilla.javascript.NativeJavaTopPackage",
-        "org",           "org.mozilla.javascript.NativeJavaTopPackage",
-        "com",           "org.mozilla.javascript.NativeJavaTopPackage",
-        "edu",           "org.mozilla.javascript.NativeJavaTopPackage",
-        "net",           "org.mozilla.javascript.NativeJavaTopPackage",
-        "getClass",      "org.mozilla.javascript.NativeJavaTopPackage",
-        "JavaAdapter",   "org.mozilla.javascript.JavaAdapter",
-        "JavaImporter",  "org.mozilla.javascript.ImporterTopLevel",
-        "Continuation",  "org.mozilla.javascript.continuations.Continuation",
-        //	TODO	Grotesque hack using literal string (xml) just to minimize
-		//			changes for now
-        "XML",           "(xml)",
-        "XMLList",       "(xml)",
-        "Namespace",     "(xml)",
-        "QName",         "(xml)",
-    };
-
-    private static final Object LIBRARY_SCOPE_KEY = new Object();
-
-    public static boolean isRhinoRuntimeType(Class cl)
-    {
-        if (cl.isPrimitive()) {
-            return (cl != Character.TYPE);
-        } else {
-            return (cl == StringClass || cl == BooleanClass
-                    || NumberClass.isAssignableFrom(cl)
-                    || ScriptableClass.isAssignableFrom(cl));
-        }
-    }
-
-    public static ScriptableObject initStandardObjects(Context cx,
-                                                       ScriptableObject scope,
-                                                       boolean sealed)
-    {
-        if (scope == null) {
-            scope = new NativeObject();
-        }
-        scope.associateValue(LIBRARY_SCOPE_KEY, scope);
-        (new ClassCache()).associate(scope);
-
-        BaseFunction.init(scope, sealed);
-        NativeObject.init(scope, sealed);
-
-        Scriptable objectProto = ScriptableObject.getObjectPrototype(scope);
-
-        // Function.prototype.__proto__ should be Object.prototype
-        Scriptable functionProto = ScriptableObject.getFunctionPrototype(scope);
-        functionProto.setPrototype(objectProto);
-
-        // Set the prototype of the object passed in if need be
-        if (scope.getPrototype() == null)
-            scope.setPrototype(objectProto);
-
-        // must precede NativeGlobal since it's needed therein
-        NativeError.init(scope, sealed);
-        NativeGlobal.init(cx, scope, sealed);
-
-        NativeArray.init(scope, sealed);
-        if (cx.getOptimizationLevel() > 0) {
-            // When optimizing, attempt to fulfill all requests for new Array(N)
-            // with a higher threshold before switching to a sparse 
-            // representation
-            NativeArray.setMaximumInitialCapacity(200000);            
-        }
-        NativeString.init(scope, sealed);
-        NativeBoolean.init(scope, sealed);
-        NativeNumber.init(scope, sealed);
-        NativeDate.init(scope, sealed);
-        NativeMath.init(scope, sealed);
-
-        NativeWith.init(scope, sealed);
-        NativeCall.init(scope, sealed);
-        NativeScript.init(scope, sealed);
-        
-        NativeIterator.init(scope, sealed); // Also initializes NativeGenerator
-
-        boolean withXml = cx.hasFeature(Context.FEATURE_E4X) && 
-                          cx.getE4xImplementationFactory() != null;
-
-        for (int i = 0; i != lazilyNames.length; i += 2) {
-            String topProperty = lazilyNames[i];
-            String className = lazilyNames[i + 1];
-            if (!withXml && className.equals("(xml)")) {
-                continue;
-            } else if (withXml && className.equals("(xml)")) {
-				className = cx.getE4xImplementationFactory().
-                               getImplementationClassName();
-			}
-            new LazilyLoadedCtor(scope, topProperty, className, sealed);
-        }
-
-        return scope;
-    }
-
-    public static ScriptableObject getLibraryScopeOrNull(Scriptable scope)
-    {
-        ScriptableObject libScope;
-        libScope = (ScriptableObject)ScriptableObject.
-                       getTopScopeValue(scope, LIBRARY_SCOPE_KEY);
-        return libScope;
-    }
-
-    // It is public so NativeRegExp can access it.
-    public static boolean isJSLineTerminator(int c)
-    {
-        // Optimization for faster check for eol character:
-        // they do not have 0xDFD0 bits set
-        if ((c & 0xDFD0) != 0) {
-            return false;
-        }
-        return c == '\n' || c == '\r' || c == 0x2028 || c == 0x2029;
-    }
-
-    public static Boolean wrapBoolean(boolean b)
-    {
-        return b ? Boolean.TRUE : Boolean.FALSE;
-    }
-
-    public static Integer wrapInt(int i)
-    {
-        return new Integer(i);
-    }
-
-    public static Number wrapNumber(double x)
-    {
-        if (x != x) {
-            return ScriptRuntime.NaNobj;
-        }
-        return new Double(x);
-    }
-
-    /**
-     * Convert the value to a boolean.
-     *
-     * See ECMA 9.2.
-     */
-    public static boolean toBoolean(Object val)
-    {
-        for (;;) {
-            if (val instanceof Boolean)
-                return ((Boolean) val).booleanValue();
-            if (val == null || val == Undefined.instance)
-                return false;
-            if (val instanceof String)
-                return ((String) val).length() != 0;
-            if (val instanceof Number) {
-                double d = ((Number) val).doubleValue();
-                return (d == d && d != 0.0);
-            }
-            if (val instanceof Scriptable) {
-                if (val instanceof ScriptableObject &&
-                    ((ScriptableObject) val).avoidObjectDetection())
-                {
-                    return false;
-                }
-                if (Context.getContext().isVersionECMA1()) {
-                    // pure ECMA
-                    return true;
-                }
-                // ECMA extension
-                val = ((Scriptable) val).getDefaultValue(BooleanClass);
-                if (val instanceof Scriptable)
-                    throw errorWithClassName("msg.primitive.expected", val);
-                continue;
-            }
-            warnAboutNonJSObject(val);
-            return true;
-        }
-    }
-
-    /**
-     * Convert the value to a number.
-     *
-     * See ECMA 9.3.
-     */
-    public static double toNumber(Object val)
-    {
-        for (;;) {
-            if (val instanceof Number)
-                return ((Number) val).doubleValue();
-            if (val == null)
-                return +0.0;
-            if (val == Undefined.instance)
-                return NaN;
-            if (val instanceof String)
-                return toNumber((String) val);
-            if (val instanceof Boolean)
-                return ((Boolean) val).booleanValue() ? 1 : +0.0;
-            if (val instanceof Scriptable) {
-                val = ((Scriptable) val).getDefaultValue(NumberClass);
-                if (val instanceof Scriptable)
-                    throw errorWithClassName("msg.primitive.expected", val);
-                continue;
-            }
-            warnAboutNonJSObject(val);
-            return NaN;
-        }
-    }
-
-    public static double toNumber(Object[] args, int index) {
-        return (index < args.length) ? toNumber(args[index]) : NaN;
-    }
-
-    // Can not use Double.NaN defined as 0.0d / 0.0 as under the Microsoft VM,
-    // versions 2.01 and 3.0P1, that causes some uses (returns at least) of
-    // Double.NaN to be converted to 1.0.
-    // So we use ScriptRuntime.NaN instead of Double.NaN.
-    public static final double
-        NaN = Double.longBitsToDouble(0x7ff8000000000000L);
-
-    // A similar problem exists for negative zero.
-    public static final double
-        negativeZero = Double.longBitsToDouble(0x8000000000000000L);
-
-    public static final Double NaNobj = new Double(NaN);
-
-    /*
-     * Helper function for toNumber, parseInt, and TokenStream.getToken.
-     */
-    static double stringToNumber(String s, int start, int radix) {
-        char digitMax = '9';
-        char lowerCaseBound = 'a';
-        char upperCaseBound = 'A';
-        int len = s.length();
-        if (radix < 10) {
-            digitMax = (char) ('0' + radix - 1);
-        }
-        if (radix > 10) {
-            lowerCaseBound = (char) ('a' + radix - 10);
-            upperCaseBound = (char) ('A' + radix - 10);
-        }
-        int end;
-        double sum = 0.0;
-        for (end=start; end < len; end++) {
-            char c = s.charAt(end);
-            int newDigit;
-            if ('0' <= c && c <= digitMax)
-                newDigit = c - '0';
-            else if ('a' <= c && c < lowerCaseBound)
-                newDigit = c - 'a' + 10;
-            else if ('A' <= c && c < upperCaseBound)
-                newDigit = c - 'A' + 10;
-            else
-                break;
-            sum = sum*radix + newDigit;
-        }
-        if (start == end) {
-            return NaN;
-        }
-        if (sum >= 9007199254740992.0) {
-            if (radix == 10) {
-                /* If we're accumulating a decimal number and the number
-                 * is >= 2^53, then the result from the repeated multiply-add
-                 * above may be inaccurate.  Call Java to get the correct
-                 * answer.
-                 */
-                try {
-                    return Double.valueOf(s.substring(start, end)).doubleValue();
-                } catch (NumberFormatException nfe) {
-                    return NaN;
-                }
-            } else if (radix == 2 || radix == 4 || radix == 8 ||
-                       radix == 16 || radix == 32)
-            {
-                /* The number may also be inaccurate for one of these bases.
-                 * This happens if the addition in value*radix + digit causes
-                 * a round-down to an even least significant mantissa bit
-                 * when the first dropped bit is a one.  If any of the
-                 * following digits in the number (which haven't been added
-                 * in yet) are nonzero then the correct action would have
-                 * been to round up instead of down.  An example of this
-                 * occurs when reading the number 0x1000000000000081, which
-                 * rounds to 0x1000000000000000 instead of 0x1000000000000100.
-                 */
-                int bitShiftInChar = 1;
-                int digit = 0;
-
-                final int SKIP_LEADING_ZEROS = 0;
-                final int FIRST_EXACT_53_BITS = 1;
-                final int AFTER_BIT_53         = 2;
-                final int ZEROS_AFTER_54 = 3;
-                final int MIXED_AFTER_54 = 4;
-
-                int state = SKIP_LEADING_ZEROS;
-                int exactBitsLimit = 53;
-                double factor = 0.0;
-                boolean bit53 = false;
-                // bit54 is the 54th bit (the first dropped from the mantissa)
-                boolean bit54 = false;
-
-                for (;;) {
-                    if (bitShiftInChar == 1) {
-                        if (start == end)
-                            break;
-                        digit = s.charAt(start++);
-                        if ('0' <= digit && digit <= '9')
-                            digit -= '0';
-                        else if ('a' <= digit && digit <= 'z')
-                            digit -= 'a' - 10;
-                        else
-                            digit -= 'A' - 10;
-                        bitShiftInChar = radix;
-                    }
-                    bitShiftInChar >>= 1;
-                    boolean bit = (digit & bitShiftInChar) != 0;
-
-                    switch (state) {
-                      case SKIP_LEADING_ZEROS:
-                          if (bit) {
-                            --exactBitsLimit;
-                            sum = 1.0;
-                            state = FIRST_EXACT_53_BITS;
-                        }
-                        break;
-                      case FIRST_EXACT_53_BITS:
-                           sum *= 2.0;
-                        if (bit)
-                            sum += 1.0;
-                        --exactBitsLimit;
-                        if (exactBitsLimit == 0) {
-                            bit53 = bit;
-                            state = AFTER_BIT_53;
-                        }
-                        break;
-                      case AFTER_BIT_53:
-                        bit54 = bit;
-                        factor = 2.0;
-                        state = ZEROS_AFTER_54;
-                        break;
-                      case ZEROS_AFTER_54:
-                        if (bit) {
-                            state = MIXED_AFTER_54;
-                        }
-                        // fallthrough
-                      case MIXED_AFTER_54:
-                        factor *= 2;
-                        break;
-                    }
-                }
-                switch (state) {
-                  case SKIP_LEADING_ZEROS:
-                    sum = 0.0;
-                    break;
-                  case FIRST_EXACT_53_BITS:
-                  case AFTER_BIT_53:
-                    // do nothing
-                    break;
-                  case ZEROS_AFTER_54:
-                    // x1.1 -> x1 + 1 (round up)
-                    // x0.1 -> x0 (round down)
-                    if (bit54 & bit53)
-                        sum += 1.0;
-                    sum *= factor;
-                    break;
-                  case MIXED_AFTER_54:
-                    // x.100...1.. -> x + 1 (round up)
-                    // x.0anything -> x (round down)
-                    if (bit54)
-                        sum += 1.0;
-                    sum *= factor;
-                    break;
-                }
-            }
-            /* We don't worry about inaccurate numbers for any other base. */
-        }
-        return sum;
-    }
-
-
-    /**
-     * ToNumber applied to the String type
-     *
-     * See ECMA 9.3.1
-     */
-    public static double toNumber(String s) {
-        int len = s.length();
-        int start = 0;
-        char startChar;
-        for (;;) {
-            if (start == len) {
-                // Empty or contains only whitespace
-                return +0.0;
-            }
-            startChar = s.charAt(start);
-            if (!Character.isWhitespace(startChar))
-                break;
-            start++;
-        }
-
-        if (startChar == '0') {
-            if (start + 2 < len) {
-                int c1 = s.charAt(start + 1);
-                if (c1 == 'x' || c1 == 'X') {
-                    // A hexadecimal number
-                    return stringToNumber(s, start + 2, 16);
-                }
-            }
-        } else if (startChar == '+' || startChar == '-') {
-            if (start + 3 < len && s.charAt(start + 1) == '0') {
-                int c2 = s.charAt(start + 2);
-                if (c2 == 'x' || c2 == 'X') {
-                    // A hexadecimal number with sign
-                    double val = stringToNumber(s, start + 3, 16);
-                    return startChar == '-' ? -val : val;
-                }
-            }
-        }
-
-        int end = len - 1;
-        char endChar;
-        while (Character.isWhitespace(endChar = s.charAt(end)))
-            end--;
-        if (endChar == 'y') {
-            // check for "Infinity"
-            if (startChar == '+' || startChar == '-')
-                start++;
-            if (start + 7 == end && s.regionMatches(start, "Infinity", 0, 8))
-                return startChar == '-'
-                    ? Double.NEGATIVE_INFINITY
-                    : Double.POSITIVE_INFINITY;
-            return NaN;
-        }
-        // A non-hexadecimal, non-infinity number:
-        // just try a normal floating point conversion
-        String sub = s.substring(start, end+1);
-        if (MSJVM_BUG_WORKAROUNDS) {
-            // The MS JVM will accept non-conformant strings
-            // rather than throwing a NumberFormatException
-            // as it should.
-            for (int i=sub.length()-1; i >= 0; i--) {
-                char c = sub.charAt(i);
-                if (('0' <= c && c <= '9') || c == '.' ||
-                    c == 'e' || c == 'E'  ||
-                    c == '+' || c == '-')
-                    continue;
-                return NaN;
-            }
-        }
-        try {
-            return Double.valueOf(sub).doubleValue();
-        } catch (NumberFormatException ex) {
-            return NaN;
-        }
-    }
-
-    /**
-     * Helper function for builtin objects that use the varargs form.
-     * ECMA function formal arguments are undefined if not supplied;
-     * this function pads the argument array out to the expected
-     * length, if necessary.
-     */
-    public static Object[] padArguments(Object[] args, int count) {
-        if (count < args.length)
-            return args;
-
-        int i;
-        Object[] result = new Object[count];
-        for (i = 0; i < args.length; i++) {
-            result[i] = args[i];
-        }
-
-        for (; i < count; i++) {
-            result[i] = Undefined.instance;
-        }
-
-        return result;
-    }
-
-    /* Work around Microsoft Java VM bugs. */
-    private final static boolean MSJVM_BUG_WORKAROUNDS = true;
-
-    public static String escapeString(String s)
-    {
-        return escapeString(s, '"');
-    }
-
-    /**
-     * For escaping strings printed by object and array literals; not quite
-     * the same as 'escape.'
-     */
-    public static String escapeString(String s, char escapeQuote)
-    {
-        if (!(escapeQuote == '"' || escapeQuote == '\'')) Kit.codeBug();
-        StringBuffer sb = null;
-
-        for(int i = 0, L = s.length(); i != L; ++i) {
-            int c = s.charAt(i);
-
-            if (' ' <= c && c <= '~' && c != escapeQuote && c != '\\') {
-                // an ordinary print character (like C isprint()) and not "
-                // or \ .
-                if (sb != null) {
-                    sb.append((char)c);
-                }
-                continue;
-            }
-            if (sb == null) {
-                sb = new StringBuffer(L + 3);
-                sb.append(s);
-                sb.setLength(i);
-            }
-
-            int escape = -1;
-            switch (c) {
-                case '\b':  escape = 'b';  break;
-                case '\f':  escape = 'f';  break;
-                case '\n':  escape = 'n';  break;
-                case '\r':  escape = 'r';  break;
-                case '\t':  escape = 't';  break;
-                case 0xb:   escape = 'v';  break; // Java lacks \v.
-                case ' ':   escape = ' ';  break;
-                case '\\':  escape = '\\'; break;
-            }
-            if (escape >= 0) {
-                // an \escaped sort of character
-                sb.append('\\');
-                sb.append((char)escape);
-            } else if (c == escapeQuote) {
-                sb.append('\\');
-                sb.append(escapeQuote);
-            } else {
-                int hexSize;
-                if (c < 256) {
-                    // 2-digit hex
-                    sb.append("\\x");
-                    hexSize = 2;
-                } else {
-                    // Unicode.
-                    sb.append("\\u");
-                    hexSize = 4;
-                }
-                // append hexadecimal form of c left-padded with 0
-                for (int shift = (hexSize - 1) * 4; shift >= 0; shift -= 4) {
-                    int digit = 0xf & (c >> shift);
-                    int hc = (digit < 10) ? '0' + digit : 'a' - 10 + digit;
-                    sb.append((char)hc);
-                }
-            }
-        }
-        return (sb == null) ? s : sb.toString();
-    }
-
-    static boolean isValidIdentifierName(String s)
-    {
-        int L = s.length();
-        if (L == 0)
-            return false;
-        if (!Character.isJavaIdentifierStart(s.charAt(0)))
-            return false;
-        for (int i = 1; i != L; ++i) {
-            if (!Character.isJavaIdentifierPart(s.charAt(i)))
-                return false;
-        }
-        return !TokenStream.isKeyword(s);
-    }
-
-    /**
-     * Convert the value to a string.
-     *
-     * See ECMA 9.8.
-     */
-    public static String toString(Object val) {
-        for (;;) {
-            if (val == null) {
-                return "null";
-            }
-            if (val == Undefined.instance) {
-                return "undefined";
-            }
-            if (val instanceof String) {
-                return (String)val;
-            }
-            if (val instanceof Number) {
-                // XXX should we just teach NativeNumber.stringValue()
-                // about Numbers?
-                return numberToString(((Number)val).doubleValue(), 10);
-            }
-            if (val instanceof Scriptable) {
-                val = ((Scriptable) val).getDefaultValue(StringClass);
-                if (val instanceof Scriptable) {
-                    throw errorWithClassName("msg.primitive.expected", val);
-                }
-                continue;
-            }
-            return val.toString();
-        }
-    }
-
-    static String defaultObjectToString(Scriptable obj)
-    {
-        return "[object " + obj.getClassName() + ']';
-    }
-
-    public static String toString(Object[] args, int index)
-    {
-        return (index < args.length) ? toString(args[index]) : "undefined";
-    }
-
-    /**
-     * Optimized version of toString(Object) for numbers.
-     */
-    public static String toString(double val) {
-        return numberToString(val, 10);
-    }
-
-    public static String numberToString(double d, int base) {
-        if (d != d)
-            return "NaN";
-        if (d == Double.POSITIVE_INFINITY)
-            return "Infinity";
-        if (d == Double.NEGATIVE_INFINITY)
-            return "-Infinity";
-        if (d == 0.0)
-            return "0";
-
-        if ((base < 2) || (base > 36)) {
-            throw Context.reportRuntimeError1(
-                "msg.bad.radix", Integer.toString(base));
-        }
-
-        if (base != 10) {
-            return DToA.JS_dtobasestr(base, d);
-        } else {
-            StringBuffer result = new StringBuffer();
-            DToA.JS_dtostr(result, DToA.DTOSTR_STANDARD, 0, d);
-            return result.toString();
-        }
-
-    }
-
-    static String uneval(Context cx, Scriptable scope, Object value)
-    {
-        if (value == null) {
-            return "null";
-        }
-        if (value == Undefined.instance) {
-            return "undefined";
-        }
-        if (value instanceof String) {
-            String escaped = escapeString((String)value);
-            StringBuffer sb = new StringBuffer(escaped.length() + 2);
-            sb.append('\"');
-            sb.append(escaped);
-            sb.append('\"');
-            return sb.toString();
-        }
-        if (value instanceof Number) {
-            double d = ((Number)value).doubleValue();
-            if (d == 0 && 1 / d < 0) {
-                return "-0";
-            }
-            return toString(d);
-        }
-        if (value instanceof Boolean) {
-            return toString(value);
-        }
-        if (value instanceof Scriptable) {
-            Scriptable obj = (Scriptable)value;
-            // Wrapped Java objects won't have "toSource" and will report
-            // errors for get()s of nonexistent name, so use has() first
-            if (ScriptableObject.hasProperty(obj, "toSource")) {
-                Object v = ScriptableObject.getProperty(obj, "toSource");
-                if (v instanceof Function) {
-                    Function f = (Function)v;
-                    return toString(f.call(cx, scope, obj, emptyArgs));
-                }
-            }
-            return toString(value);
-        }
-        warnAboutNonJSObject(value);
-        return value.toString();
-    }
-
-    static String defaultObjectToSource(Context cx, Scriptable scope,
-                                        Scriptable thisObj, Object[] args)
-    {
-        boolean toplevel, iterating;
-        if (cx.iterating == null) {
-            toplevel = true;
-            iterating = false;
-            cx.iterating = new ObjToIntMap(31);
-        } else {
-            toplevel = false;
-            iterating = cx.iterating.has(thisObj);
-        }
-
-        StringBuffer result = new StringBuffer(128);
-        if (toplevel) {
-            result.append("(");
-        }
-        result.append('{');
-
-        // Make sure cx.iterating is set to null when done
-        // so we don't leak memory
-        try {
-            if (!iterating) {
-                cx.iterating.intern(thisObj); // stop recursion.
-                Object[] ids = thisObj.getIds();
-                for (int i=0; i < ids.length; i++) {
-                    Object id = ids[i];
-                    Object value;
-                    if (id instanceof Integer) {
-                        int intId = ((Integer)id).intValue();
-                        value = thisObj.get(intId, thisObj);
-                        if (value == Scriptable.NOT_FOUND)
-                            continue;   // a property has been removed
-                        if (i > 0)
-                            result.append(", ");
-                        result.append(intId);
-                    } else {
-                        String strId = (String)id;
-                        value = thisObj.get(strId, thisObj);
-                        if (value == Scriptable.NOT_FOUND)
-                            continue;   // a property has been removed
-                        if (i > 0)
-                            result.append(", ");
-                        if (ScriptRuntime.isValidIdentifierName(strId)) {
-                            result.append(strId);
-                        } else {
-                            result.append('\'');
-                            result.append(
-                                ScriptRuntime.escapeString(strId, '\''));
-                            result.append('\'');
-                        }
-                    }
-                    result.append(':');
-                    result.append(ScriptRuntime.uneval(cx, scope, value));
-                }
-            }
-        } finally {
-            if (toplevel) {
-                cx.iterating = null;
-            }
-        }
-
-        result.append('}');
-        if (toplevel) {
-            result.append(')');
-        }
-        return result.toString();
-    }
-
-    public static Scriptable toObject(Scriptable scope, Object val)
-    {
-        if (val instanceof Scriptable) {
-            return (Scriptable)val;
-        }
-        return toObject(Context.getContext(), scope, val);
-    }
-
-    public static Scriptable toObjectOrNull(Context cx, Object obj)
-    {
-        if (obj instanceof Scriptable) {
-            return (Scriptable)obj;
-        } else if (obj != null && obj != Undefined.instance) {
-            return toObject(cx, getTopCallScope(cx), obj);
-        }
-        return null;
-    }
-
-    /**
-     * @deprecated Use {@link #toObject(Scriptable, Object)} instead.
-     */
-    public static Scriptable toObject(Scriptable scope, Object val,
-                                      Class staticClass)
-    {
-        if (val instanceof Scriptable) {
-            return (Scriptable)val;
-        }
-        return toObject(Context.getContext(), scope, val);
-    }
-
-    /**
-     * Convert the value to an object.
-     *
-     * See ECMA 9.9.
-     */
-    public static Scriptable toObject(Context cx, Scriptable scope, Object val)
-    {
-        if (val instanceof Scriptable) {
-            return (Scriptable) val;
-        }
-        if (val == null) {
-            throw typeError0("msg.null.to.object");
-        }
-        if (val == Undefined.instance) {
-            throw typeError0("msg.undef.to.object");
-        }
-        String className = val instanceof String ? "String" :
-                           val instanceof Number ? "Number" :
-                           val instanceof Boolean ? "Boolean" :
-                           null;
-        if (className != null) {
-            Object[] args = { val };
-            scope = ScriptableObject.getTopLevelScope(scope);
-            return newObject(cx, scope, className, args);
-        }
-
-        // Extension: Wrap as a LiveConnect object.
-        Object wrapped = cx.getWrapFactory().wrap(cx, scope, val, null);
-        if (wrapped instanceof Scriptable)
-            return (Scriptable) wrapped;
-        throw errorWithClassName("msg.invalid.type", val);
-    }
-
-    /**
-     * @deprecated Use {@link #toObject(Context, Scriptable, Object)} instead.
-     */
-    public static Scriptable toObject(Context cx, Scriptable scope, Object val,
-                                      Class staticClass)
-    {
-        return toObject(cx, scope, val);
-    }
-
-    /**
-     * @deprecated The method is only present for compatibility.
-     */
-    public static Object call(Context cx, Object fun, Object thisArg,
-                              Object[] args, Scriptable scope)
-    {
-        if (!(fun instanceof Function)) {
-            throw notFunctionError(toString(fun));
-        }
-        Function function = (Function)fun;
-        Scriptable thisObj = toObjectOrNull(cx, thisArg);
-        if (thisObj == null) {
-            throw undefCallError(thisObj, "function");
-        }
-        return function.call(cx, scope, thisObj, args);
-    }
-
-    public static Scriptable newObject(Context cx, Scriptable scope,
-                                       String constructorName, Object[] args)
-    {
-        scope = ScriptableObject.getVeryTopLevelScope(scope); // APPJET
-        Function ctor = getExistingCtor(cx, scope, constructorName);
-        if (args == null) { args = ScriptRuntime.emptyArgs; }
-        return ctor.construct(cx, scope, args);
-    }
-
-    /**
-     *
-     * See ECMA 9.4.
-     */
-    public static double toInteger(Object val) {
-        return toInteger(toNumber(val));
-    }
-
-    // convenience method
-    public static double toInteger(double d) {
-        // if it's NaN
-        if (d != d)
-            return +0.0;
-
-        if (d == 0.0 ||
-            d == Double.POSITIVE_INFINITY ||
-            d == Double.NEGATIVE_INFINITY)
-            return d;
-
-        if (d > 0.0)
-            return Math.floor(d);
-        else
-            return Math.ceil(d);
-    }
-
-    public static double toInteger(Object[] args, int index) {
-        return (index < args.length) ? toInteger(args[index]) : +0.0;
-    }
-
-    /**
-     *
-     * See ECMA 9.5.
-     */
-    public static int toInt32(Object val)
-    {
-        // short circuit for common integer values
-        if (val instanceof Integer)
-            return ((Integer)val).intValue();
-
-        return toInt32(toNumber(val));
-    }
-
-    public static int toInt32(Object[] args, int index) {
-        return (index < args.length) ? toInt32(args[index]) : 0;
-    }
-
-    public static int toInt32(double d) {
-        int id = (int)d;
-        if (id == d) {
-            // This covers -0.0 as well
-            return id;
-        }
-
-        if (d != d
-            || d == Double.POSITIVE_INFINITY
-            || d == Double.NEGATIVE_INFINITY)
-        {
-            return 0;
-        }
-
-        d = (d >= 0) ? Math.floor(d) : Math.ceil(d);
-
-        double two32 = 4294967296.0;
-        d = Math.IEEEremainder(d, two32);
-        // (double)(long)d == d should hold here
-
-        long l = (long)d;
-        // returning (int)d does not work as d can be outside int range
-        // but the result must always be 32 lower bits of l
-        return (int)l;
-    }
-
-    /**
-     * See ECMA 9.6.
-     * @return long value representing 32 bits unsigned integer
-     */
-    public static long toUint32(double d) {
-        long l = (long)d;
-        if (l == d) {
-            // This covers -0.0 as well
-            return l & 0xffffffffL;
-        }
-
-        if (d != d
-            || d == Double.POSITIVE_INFINITY
-            || d == Double.NEGATIVE_INFINITY)
-        {
-            return 0;
-        }
-
-        d = (d >= 0) ? Math.floor(d) : Math.ceil(d);
-
-        // 0x100000000 gives me a numeric overflow...
-        double two32 = 4294967296.0;
-        l = (long)Math.IEEEremainder(d, two32);
-
-        return l & 0xffffffffL;
-    }
-
-    public static long toUint32(Object val) {
-        return toUint32(toNumber(val));
-    }
-
-    /**
-     *
-     * See ECMA 9.7.
-     */
-    public static char toUint16(Object val) {
-        double d = toNumber(val);
-
-        int i = (int)d;
-        if (i == d) {
-            return (char)i;
-        }
-
-        if (d != d
-            || d == Double.POSITIVE_INFINITY
-            || d == Double.NEGATIVE_INFINITY)
-        {
-            return 0;
-        }
-
-        d = (d >= 0) ? Math.floor(d) : Math.ceil(d);
-
-        int int16 = 0x10000;
-        i = (int)Math.IEEEremainder(d, int16);
-
-        return (char)i;
-    }
-
-    // XXX: this is until setDefaultNamespace will learn how to store NS
-    // properly and separates namespace form Scriptable.get etc.
-    private static final String DEFAULT_NS_TAG = "__default_namespace__";
-
-    public static Object setDefaultNamespace(Object namespace, Context cx)
-    {
-        Scriptable scope = cx.currentActivationCall;
-        if (scope == null) {
-            scope = getTopCallScope(cx);
-        }
-
-        XMLLib xmlLib = currentXMLLib(cx);
-        Object ns = xmlLib.toDefaultXmlNamespace(cx, namespace);
-
-        // XXX : this should be in separated namesapce from Scriptable.get/put
-        if (!scope.has(DEFAULT_NS_TAG, scope)) {
-            // XXX: this is racy of cause
-            ScriptableObject.defineProperty(scope, DEFAULT_NS_TAG, ns,
-                                            ScriptableObject.PERMANENT
-                                            | ScriptableObject.DONTENUM);
-        } else {
-            scope.put(DEFAULT_NS_TAG, scope, ns);
-        }
-
-        return Undefined.instance;
-    }
-
-    public static Object searchDefaultNamespace(Context cx)
-    {
-        Scriptable scope = cx.currentActivationCall;
-        if (scope == null) {
-            scope = getTopCallScope(cx);
-        }
-        Object nsObject;
-        for (;;) {
-            Scriptable parent = scope.getParentScope();
-            if (parent == null) {
-                nsObject = ScriptableObject.getProperty(scope, DEFAULT_NS_TAG);
-                if (nsObject == Scriptable.NOT_FOUND) {
-                    return null;
-                }
-                break;
-            }
-            nsObject = scope.get(DEFAULT_NS_TAG, scope);
-            if (nsObject != Scriptable.NOT_FOUND) {
-                break;
-            }
-            scope = parent;
-        }
-        return nsObject;
-    }
-
-    public static Object getTopLevelProp(Scriptable scope, String id) {
-        scope = ScriptableObject.getTopLevelScope(scope);
-        return ScriptableObject.getProperty(scope, id);
-    }
-
-    static Function getExistingCtor(Context cx, Scriptable scope,
-                                    String constructorName)
-    {
-        Object ctorVal = ScriptableObject.getProperty(scope, constructorName);
-        if (ctorVal instanceof Function) {
-            return (Function)ctorVal;
-        }
-        if (ctorVal == Scriptable.NOT_FOUND) {
-            throw Context.reportRuntimeError1(
-                "msg.ctor.not.found", constructorName);
-        } else {
-            throw Context.reportRuntimeError1(
-                "msg.not.ctor", constructorName);
-        }
-    }
-
-    /**
-     * Return -1L if str is not an index or the index value as lower 32
-     * bits of the result.
-     */
-    private static long indexFromString(String str)
-    {
-        // The length of the decimal string representation of
-        //  Integer.MAX_VALUE, 2147483647
-        final int MAX_VALUE_LENGTH = 10;
-
-        int len = str.length();
-        if (len > 0) {
-            int i = 0;
-            boolean negate = false;
-            int c = str.charAt(0);
-            if (c == '-') {
-                if (len > 1) {
-                    c = str.charAt(1);
-                    i = 1;
-                    negate = true;
-                }
-            }
-            c -= '0';
-            if (0 <= c && c <= 9
-                && len <= (negate ? MAX_VALUE_LENGTH + 1 : MAX_VALUE_LENGTH))
-            {
-                // Use negative numbers to accumulate index to handle
-                // Integer.MIN_VALUE that is greater by 1 in absolute value
-                // then Integer.MAX_VALUE
-                int index = -c;
-                int oldIndex = 0;
-                i++;
-                if (index != 0) {
-                    // Note that 00, 01, 000 etc. are not indexes
-                    while (i != len && 0 <= (c = str.charAt(i) - '0') && c <= 9)
-                    {
-                        oldIndex = index;
-                        index = 10 * index - c;
-                        i++;
-                    }
-                }
-                // Make sure all characters were consumed and that it couldn't
-                // have overflowed.
-                if (i == len &&
-                    (oldIndex > (Integer.MIN_VALUE / 10) ||
-                     (oldIndex == (Integer.MIN_VALUE / 10) &&
-                      c <= (negate ? -(Integer.MIN_VALUE % 10)
-                                   : (Integer.MAX_VALUE % 10)))))
-                {
-                    return 0xFFFFFFFFL & (negate ? index : -index);
-                }
-            }
-        }
-        return -1L;
-    }
-
-    /**
-     * If str is a decimal presentation of Uint32 value, return it as long.
-     * Othewise return -1L;
-     */
-    public static long testUint32String(String str)
-    {
-        // The length of the decimal string representation of
-        //  UINT32_MAX_VALUE, 4294967296
-        final int MAX_VALUE_LENGTH = 10;
-
-        int len = str.length();
-        if (1 <= len && len <= MAX_VALUE_LENGTH) {
-            int c = str.charAt(0);
-            c -= '0';
-            if (c == 0) {
-                // Note that 00,01 etc. are not valid Uint32 presentations
-                return (len == 1) ? 0L : -1L;
-            }
-            if (1 <= c && c <= 9) {
-                long v = c;
-                for (int i = 1; i != len; ++i) {
-                    c = str.charAt(i) - '0';
-                    if (!(0 <= c && c <= 9)) {
-                        return -1;
-                    }
-                    v = 10 * v + c;
-                }
-                // Check for overflow
-                if ((v >>> 32) == 0) {
-                    return v;
-                }
-            }
-        }
-        return -1;
-    }
-
-    /**
-     * If s represents index, then return index value wrapped as Integer
-     * and othewise return s.
-     */
-    static Object getIndexObject(String s)
-    {
-        long indexTest = indexFromString(s);
-        if (indexTest >= 0) {
-            return new Integer((int)indexTest);
-        }
-        return s;
-    }
-
-    /**
-     * If d is exact int value, return its value wrapped as Integer
-     * and othewise return d converted to String.
-     */
-    static Object getIndexObject(double d)
-    {
-        int i = (int)d;
-        if (i == d) {
-            return new Integer(i);
-        }
-        return toString(d);
-    }
-
-    /**
-     * If toString(id) is a decimal presentation of int32 value, then id
-     * is index. In this case return null and make the index available
-     * as ScriptRuntime.lastIndexResult(cx). Otherwise return toString(id).
-     */
-    static String toStringIdOrIndex(Context cx, Object id)
-    {
-        if (id instanceof Number) {
-            double d = ((Number)id).doubleValue();
-            int index = (int)d;
-            if (index == d) {
-                storeIndexResult(cx, index);
-                return null;
-            }
-            return toString(id);
-        } else {
-            String s;
-            if (id instanceof String) {
-                s = (String)id;
-            } else {
-                s = toString(id);
-            }
-            long indexTest = indexFromString(s);
-            if (indexTest >= 0) {
-                storeIndexResult(cx, (int)indexTest);
-                return null;
-            }
-            return s;
-        }
-    }
-
-    /**
-     * Call obj.[[Get]](id)
-     */
-    public static Object getObjectElem(Object obj, Object elem, Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefReadError(obj, elem);
-        }
-        return getObjectElem(sobj, elem, cx);
-    }
-
-    public static Object getObjectElem(Scriptable obj, Object elem,
-                                       Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)obj;
-            return xmlObject.ecmaGet(cx, elem);
-        }
-
-        Object result;
-
-        String s = toStringIdOrIndex(cx, elem);
-        if (s == null) {
-            int index = lastIndexResult(cx);
-            result = ScriptableObject.getProperty(obj, index);
-        } else {
-            result = ScriptableObject.getProperty(obj, s);
-        }
-
-        if (result == Scriptable.NOT_FOUND) {
-            result = Undefined.instance;
-        }
-
-        return result;
-    }
-
-    /**
-     * Version of getObjectElem when elem is a valid JS identifier name.
-     */
-    public static Object getObjectProp(Object obj, String property,
-                                       Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefReadError(obj, property);
-        }
-        return getObjectProp(sobj, property, cx);
-    }
-
-    public static Object getObjectProp(Scriptable obj, String property,
-                                       Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            // TODO: Change XMLObject to just use Scriptable interface
-            // to avoid paying cost of instanceof check on *every property
-            // lookup* !
-            XMLObject xmlObject = (XMLObject)obj;
-            return xmlObject.ecmaGet(cx, property);
-        }
-
-        Object result = ScriptableObject.getProperty(obj, property);
-        if (result == Scriptable.NOT_FOUND) {
-            if (cx.hasFeature(Context.FEATURE_STRICT_MODE)) {
-                Context.reportWarning(ScriptRuntime.getMessage1(
-                    "msg.ref.undefined.prop", property));
-            }
-            result = Undefined.instance;
-        }
-
-        return result;
-    }
-    
-    public static Object getObjectPropNoWarn(Object obj, String property,
-                                             Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefReadError(obj, property);
-        }
-        if (obj instanceof XMLObject) {
-            // TODO: fix as mentioned in note in method above
-            getObjectProp(sobj, property, cx);
-        }
-        Object result = ScriptableObject.getProperty(sobj, property);
-        if (result == Scriptable.NOT_FOUND) {
-          return Undefined.instance;
-        }
-        return result;
-    }
-    
-    /*
-     * A cheaper and less general version of the above for well-known argument
-     * types.
-     */
-    public static Object getObjectIndex(Object obj, double dblIndex,
-                                        Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefReadError(obj, toString(dblIndex));
-        }
-
-        int index = (int)dblIndex;
-        if (index == dblIndex) {
-            return getObjectIndex(sobj, index, cx);
-        } else {
-            String s = toString(dblIndex);
-            return getObjectProp(sobj, s, cx);
-        }
-    }
-
-    public static Object getObjectIndex(Scriptable obj, int index,
-                                        Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)obj;
-            return xmlObject.ecmaGet(cx, new Integer(index));
-        }
-
-        Object result = ScriptableObject.getProperty(obj, index);
-        if (result == Scriptable.NOT_FOUND) {
-            result = Undefined.instance;
-        }
-
-        return result;
-    }
-
-    /*
-     * Call obj.[[Put]](id, value)
-     */
-    public static Object setObjectElem(Object obj, Object elem, Object value,
-                                       Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefWriteError(obj, elem, value);
-        }
-        return setObjectElem(sobj, elem, value, cx);
-    }
-
-    public static Object setObjectElem(Scriptable obj, Object elem,
-                                       Object value, Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)obj;
-            xmlObject.ecmaPut(cx, elem, value);
-            return value;
-        }
-
-        String s = toStringIdOrIndex(cx, elem);
-        if (s == null) {
-            int index = lastIndexResult(cx);
-            ScriptableObject.putProperty(obj, index, value);
-        } else {
-            ScriptableObject.putProperty(obj, s, value);
-        }
-
-        return value;
-    }
-
-    /**
-     * Version of setObjectElem when elem is a valid JS identifier name.
-     */
-    public static Object setObjectProp(Object obj, String property,
-                                       Object value, Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefWriteError(obj, property, value);
-        }
-        return setObjectProp(sobj, property, value, cx);
-    }
-
-    public static Object setObjectProp(Scriptable obj, String property,
-                                       Object value, Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)obj;
-            xmlObject.ecmaPut(cx, property, value);
-        } else {
-            ScriptableObject.putProperty(obj, property, value);
-        }
-        return value;
-    }
-
-    /*
-     * A cheaper and less general version of the above for well-known argument
-     * types.
-     */
-    public static Object setObjectIndex(Object obj, double dblIndex,
-                                        Object value, Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw undefWriteError(obj, String.valueOf(dblIndex), value);
-        }
-
-        int index = (int)dblIndex;
-        if (index == dblIndex) {
-            return setObjectIndex(sobj, index, value, cx);
-        } else {
-            String s = toString(dblIndex);
-            return setObjectProp(sobj, s, value, cx);
-        }
-    }
-
-    public static Object setObjectIndex(Scriptable obj, int index, Object value,
-                                        Context cx)
-    {
-        if (obj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)obj;
-            xmlObject.ecmaPut(cx, new Integer(index), value);
-        } else {
-            ScriptableObject.putProperty(obj, index, value);
-        }
-        return value;
-    }
-
-    public static boolean deleteObjectElem(Scriptable target, Object elem,
-                                           Context cx)
-    {
-        boolean result;
-        if (target instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)target;
-            result = xmlObject.ecmaDelete(cx, elem);
-        } else {
-            String s = toStringIdOrIndex(cx, elem);
-            if (s == null) {
-                int index = lastIndexResult(cx);
-                result = ScriptableObject.deleteProperty(target, index);
-            } else {
-                result = ScriptableObject.deleteProperty(target, s);
-            }
-        }
-        return result;
-    }
-
-    public static boolean hasObjectElem(Scriptable target, Object elem,
-                                        Context cx)
-    {
-        boolean result;
-
-        if (target instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)target;
-            result = xmlObject.ecmaHas(cx, elem);
-        } else {
-            String s = toStringIdOrIndex(cx, elem);
-            if (s == null) {
-                int index = lastIndexResult(cx);
-                result = ScriptableObject.hasProperty(target, index);
-            } else {
-                result = ScriptableObject.hasProperty(target, s);
-            }
-        }
-
-        return result;
-    }
-
-    public static Object refGet(Ref ref, Context cx)
-    {
-        return ref.get(cx);
-    }
-
-    public static Object refSet(Ref ref, Object value, Context cx)
-    {
-        return ref.set(cx, value);
-    }
-
-    public static Object refDel(Ref ref, Context cx)
-    {
-        return wrapBoolean(ref.delete(cx));
-    }
-
-    static boolean isSpecialProperty(String s)
-    {
-        return s.equals("__proto__") || s.equals("__parent__");
-    }
-
-    public static Ref specialRef(Object obj, String specialProperty,
-                                 Context cx)
-    {
-        return SpecialRef.createSpecial(cx, obj, specialProperty);
-    }
-
-    /**
-     * The delete operator
-     *
-     * See ECMA 11.4.1
-     *
-     * In ECMA 0.19, the description of the delete operator (11.4.1)
-     * assumes that the [[Delete]] method returns a value. However,
-     * the definition of the [[Delete]] operator (8.6.2.5) does not
-     * define a return value. Here we assume that the [[Delete]]
-     * method doesn't return a value.
-     */
-    public static Object delete(Object obj, Object id, Context cx)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            String idStr = (id == null) ? "null" : id.toString();
-            throw typeError2("msg.undef.prop.delete", toString(obj), idStr);
-        }
-        boolean result = deleteObjectElem(sobj, id, cx);
-        return wrapBoolean(result);
-    }
-
-    /**
-     * Looks up a name in the scope chain and returns its value.
-     */
-    public static Object name(Context cx, Scriptable scope, String name)
-    {
-        Scriptable parent = scope.getParentScope();
-        if (parent == null) {
-            Object result = topScopeName(cx, scope, name);
-            if (result == Scriptable.NOT_FOUND) {
-                throw notFoundError(scope, name);
-            }
-            return result;
-        }
-
-        return nameOrFunction(cx, scope, parent, name, false);
-    }
-
-    private static Object nameOrFunction(Context cx, Scriptable scope,
-                                         Scriptable parentScope, String name,
-                                         boolean asFunctionCall)
-    {
-        Object result;
-        Scriptable thisObj = scope; // It is used only if asFunctionCall==true.
-
-        XMLObject firstXMLObject = null;
-        for (;;) {
-            if (scope instanceof NativeWith) {
-                Scriptable withObj = scope.getPrototype();
-                if (withObj instanceof XMLObject) {
-                    XMLObject xmlObj = (XMLObject)withObj;
-                    if (xmlObj.ecmaHas(cx, name)) {
-                        // function this should be the target object of with
-                        thisObj = xmlObj;
-                        result = xmlObj.ecmaGet(cx, name);
-                        break;
-                    }
-                    if (firstXMLObject == null) {
-                        firstXMLObject = xmlObj;
-                    }
-                } else {
-                    result = ScriptableObject.getProperty(withObj, name);
-                    if (result != Scriptable.NOT_FOUND) {
-                        // function this should be the target object of with
-                        thisObj = withObj;
-                        break;
-                    }
-                }
-            } else if (scope instanceof NativeCall) {
-                // NativeCall does not prototype chain and Scriptable.get
-                // can be called directly.
-                result = scope.get(name, scope);
-                if (result != Scriptable.NOT_FOUND) {
-                    if (asFunctionCall) {
-                        // ECMA 262 requires that this for nested funtions
-                        // should be top scope
-                        thisObj = ScriptableObject.
-                                      getTopLevelScope(parentScope);
-                    }
-                    break;
-                }
-            } else {
-                // Can happen if Rhino embedding decided that nested
-                // scopes are useful for what ever reasons.
-                result = ScriptableObject.getProperty(scope, name);
-                if (result != Scriptable.NOT_FOUND) {
-                    thisObj = scope;
-                    break;
-                }
-            }
-            scope = parentScope;
-            parentScope = parentScope.getParentScope();
-            if (parentScope == null) {
-                result = topScopeName(cx, scope, name);
-                if (result == Scriptable.NOT_FOUND) {
-                    if (firstXMLObject == null || asFunctionCall) {
-                        throw notFoundError(scope, name);
-                    }
-                    // The name was not found, but we did find an XML
-                    // object in the scope chain and we are looking for name,
-                    // not function. The result should be an empty XMLList
-                    // in name context.
-                    result = firstXMLObject.ecmaGet(cx, name);
-                }
-                // For top scope thisObj for functions is always scope itself.
-                thisObj = scope;
-                break;
-            }
-        }
-
-        if (asFunctionCall) {
-            if (!(result instanceof Callable)) {
-                throw notFunctionError(result, name);
-            }
-            storeScriptable(cx, thisObj);
-        }
-
-        return result;
-    }
-
-    private static Object topScopeName(Context cx, Scriptable scope,
-                                       String name)
-    {
-        if (cx.useDynamicScope) {
-            scope = checkDynamicScope(cx.topCallScope, scope);
-        }
-        return ScriptableObject.getProperty(scope, name);
-    }
-
-
-    /**
-     * Returns the object in the scope chain that has a given property.
-     *
-     * The order of evaluation of an assignment expression involves
-     * evaluating the lhs to a reference, evaluating the rhs, and then
-     * modifying the reference with the rhs value. This method is used
-     * to 'bind' the given name to an object containing that property
-     * so that the side effects of evaluating the rhs do not affect
-     * which property is modified.
-     * Typically used in conjunction with setName.
-     *
-     * See ECMA 10.1.4
-     */
-    public static Scriptable bind(Context cx, Scriptable scope, String id)
-    {
-        Scriptable firstXMLObject = null;
-        Scriptable parent = scope.getParentScope();
-        childScopesChecks: if (parent != null) {
-            // Check for possibly nested "with" scopes first
-            while (scope instanceof NativeWith) {
-                Scriptable withObj = scope.getPrototype();
-                if (withObj instanceof XMLObject) {
-                    XMLObject xmlObject = (XMLObject)withObj;
-                    if (xmlObject.ecmaHas(cx, id)) {
-                        return xmlObject;
-                    }
-                    if (firstXMLObject == null) {
-                        firstXMLObject = xmlObject;
-                    }
-                } else {
-                    if (ScriptableObject.hasProperty(withObj, id)) {
-                        return withObj;
-                    }
-                }
-                scope = parent;
-                parent = parent.getParentScope();
-                if (parent == null) {
-                    break childScopesChecks;
-                }
-            }
-            for (;;) {
-                if (ScriptableObject.hasProperty(scope, id)) {
-                    return scope;
-                }
-                scope = parent;
-                parent = parent.getParentScope();
-                if (parent == null) {
-                    break childScopesChecks;
-                }
-            }
-        }
-        // scope here is top scope
-        if (cx.useDynamicScope) {
-            scope = checkDynamicScope(cx.topCallScope, scope);
-        }
-        if (ScriptableObject.hasProperty(scope, id)) {
-            return scope;
-        }
-        // Nothing was found, but since XML objects always bind
-        // return one if found
-        return firstXMLObject;
-    }
-
-    public static Object setName(Scriptable bound, Object value,
-                                 Context cx, Scriptable scope, String id)
-    {
-        if (bound != null) {
-            if (bound instanceof XMLObject) {
-                XMLObject xmlObject = (XMLObject)bound;
-                xmlObject.ecmaPut(cx, id, value);
-            } else {
-                ScriptableObject.putProperty(bound, id, value);
-            }
-        } else {
-            // "newname = 7;", where 'newname' has not yet
-            // been defined, creates a new property in the
-            // top scope unless strict mode is specified.
-            if (cx.hasFeature(Context.FEATURE_STRICT_MODE) ||
-                cx.hasFeature(Context.FEATURE_STRICT_VARS))
-            {
-                Context.reportWarning(
-                    ScriptRuntime.getMessage1("msg.assn.create.strict", id));
-            }
-            // Find the top scope by walking up the scope chain.
-            bound = ScriptableObject.getTopLevelScope(scope);
-            if (cx.useDynamicScope) {
-                bound = checkDynamicScope(cx.topCallScope, bound);
-            }
-            bound.put(id, bound, value);
-        }
-        return value;
-    }
-
-    public static Object setConst(Scriptable bound, Object value,
-                                 Context cx, String id)
-    {
-        if (bound instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)bound;
-            xmlObject.ecmaPut(cx, id, value);
-        } else {
-            ScriptableObject.putConstProperty(bound, id, value);
-        }
-        return value;
-    }
-
-    /**
-     * This is the enumeration needed by the for..in statement.
-     *
-     * See ECMA 12.6.3.
-     *
-     * IdEnumeration maintains a ObjToIntMap to make sure a given
-     * id is enumerated only once across multiple objects in a
-     * prototype chain.
-     *
-     * XXX - ECMA delete doesn't hide properties in the prototype,
-     * but js/ref does. This means that the js/ref for..in can
-     * avoid maintaining a hash table and instead perform lookups
-     * to see if a given property has already been enumerated.
-     *
-     */
-    private static class IdEnumeration implements Serializable
-    {
-        private static final long serialVersionUID = 1L;
-        Scriptable obj;
-        Object[] ids;
-        int index;
-        ObjToIntMap used;
-        Object currentId;
-        int enumType; /* one of ENUM_INIT_KEYS, ENUM_INIT_VALUES, 
-                         ENUM_INIT_ARRAY */
-        
-        // if true, integer ids will be returned as numbers rather than strings
-        boolean enumNumbers; 
-        
-        Scriptable iterator;
-    }
-    
-    public static Scriptable toIterator(Context cx, Scriptable scope, 
-                                        Scriptable obj, boolean keyOnly)
-    {
-        /*APPJET 1.6*//*
-        if (ScriptableObject.hasProperty(obj, 
-            NativeIterator.ITERATOR_PROPERTY_NAME))
-        {
-            Object v = ScriptableObject.getProperty(obj, 
-                NativeIterator.ITERATOR_PROPERTY_NAME);
-            if (!(v instanceof Callable)) {
-               throw typeError0("msg.invalid.iterator");
-            }
-            Callable f = (Callable) v;
-            Object[] args = new Object[] { keyOnly ? Boolean.TRUE
-                                                   : Boolean.FALSE };
-            v = f.call(cx, scope, obj, args);
-            if (!(v instanceof Scriptable)) {
-                throw typeError0("msg.iterator.primitive");
-            }
-            return (Scriptable) v;
-            }*/
-        return null;
-    }
-
-    // for backwards compatibility with generated class files
-    public static Object enumInit(Object value, Context cx, boolean enumValues)
-    {
-        return enumInit(value, cx, enumValues ? ENUMERATE_VALUES
-                                              : ENUMERATE_KEYS);
-    }
-
-    public static final int ENUMERATE_KEYS = 0;
-    public static final int ENUMERATE_VALUES = 1;
-    public static final int ENUMERATE_ARRAY = 2;
-    public static final int ENUMERATE_KEYS_NO_ITERATOR = 3;
-    public static final int ENUMERATE_VALUES_NO_ITERATOR = 4;
-    public static final int ENUMERATE_ARRAY_NO_ITERATOR = 5;
-
-    public static Object enumInit(Object value, Context cx, int enumType)
-    {
-        IdEnumeration x = new IdEnumeration();
-        x.obj = toObjectOrNull(cx, value);
-        if (x.obj == null) {
-            // null or undefined do not cause errors but rather lead to empty
-            // "for in" loop
-            return x;
-        }
-        x.enumType = enumType;
-        x.iterator = null;
-        if (enumType != ENUMERATE_KEYS_NO_ITERATOR &&
-            enumType != ENUMERATE_VALUES_NO_ITERATOR &&
-            enumType != ENUMERATE_ARRAY_NO_ITERATOR)
-        {
-            x.iterator = toIterator(cx, x.obj.getParentScope(), x.obj, true);
-        }
-        if (x.iterator == null) {
-            // enumInit should read all initial ids before returning
-            // or "for (a.i in a)" would wrongly enumerate i in a as well
-            enumChangeObject(x);
-        }
-        
-        return x;
-    }
-    
-    public static void setEnumNumbers(Object enumObj, boolean enumNumbers) {
-        ((IdEnumeration)enumObj).enumNumbers = enumNumbers;
-    }
-
-    public static Boolean enumNext(Object enumObj)
-    {
-        IdEnumeration x = (IdEnumeration)enumObj;
-        if (x.iterator != null) {
-            Object v = ScriptableObject.getProperty(x.iterator, "next");
-            if (!(v instanceof Callable))
-                return Boolean.FALSE;
-            Callable f = (Callable) v;
-            Context cx = Context.enter();
-            try {
-                x.currentId = f.call(cx, x.iterator.getParentScope(), 
-                                     x.iterator, emptyArgs);
-                return Boolean.TRUE;
-            } catch (JavaScriptException e) {
-                if (e.getValue() instanceof NativeIterator.StopIteration) {
-                  return Boolean.FALSE;
-                }
-                throw e;
-            } finally {
-                Context.exit();
-            }
-        }
-        for (;;) {
-            if (x.obj == null) {
-                return Boolean.FALSE;
-            }
-            if (x.index == x.ids.length) {
-                x.obj = x.obj.getPrototype();
-                enumChangeObject(x);
-                continue;
-            }
-            Object id = x.ids[x.index++];
-            if (x.used != null && x.used.has(id)) {
-                continue;
-            }
-            if (id instanceof String) {
-                String strId = (String)id;
-                if (!x.obj.has(strId, x.obj))
-                    continue;   // must have been deleted
-                x.currentId = strId;
-            } else {
-                int intId = ((Number)id).intValue();
-                if (!x.obj.has(intId, x.obj))
-                    continue;   // must have been deleted
-                x.currentId = x.enumNumbers ? (Object) (new Integer(intId))
-                                            : String.valueOf(intId);
-            }
-            return Boolean.TRUE;
-        }
-    }
-
-    public static Object enumId(Object enumObj, Context cx)
-    {
-        IdEnumeration x = (IdEnumeration)enumObj;
-        if (x.iterator != null) {
-            return x.currentId;
-        }
-        switch (x.enumType) {
-          case ENUMERATE_KEYS:
-          case ENUMERATE_KEYS_NO_ITERATOR:
-            return x.currentId;
-          case ENUMERATE_VALUES:
-          case ENUMERATE_VALUES_NO_ITERATOR:
-            return enumValue(enumObj, cx);
-          case ENUMERATE_ARRAY:
-          case ENUMERATE_ARRAY_NO_ITERATOR:
-            Object[] elements = { x.currentId, enumValue(enumObj, cx) };
-            return cx.newArray(x.obj.getParentScope(), elements);
-          default:
-            throw Kit.codeBug();
-        }
-    }
-
-    public static Object enumValue(Object enumObj, Context cx) {
-        IdEnumeration x = (IdEnumeration)enumObj;
-
-        Object result;
-
-        String s = toStringIdOrIndex(cx, x.currentId);
-        if (s == null) {
-            int index = lastIndexResult(cx);
-            result = x.obj.get(index, x.obj);
-        } else {
-            result = x.obj.get(s, x.obj);
-        }
-
-        return result;
-    }
-
-    private static void enumChangeObject(IdEnumeration x)
-    {
-        Object[] ids = null;
-        while (x.obj != null) {
-            ids = x.obj.getIds();
-            if (ids.length != 0) {
-                break;
-            }
-            x.obj = x.obj.getPrototype();
-        }
-        if (x.obj != null && x.ids != null) {
-            Object[] previous = x.ids;
-            int L = previous.length;
-            if (x.used == null) {
-                x.used = new ObjToIntMap(L);
-            }
-            for (int i = 0; i != L; ++i) {
-                x.used.intern(previous[i]);
-            }
-        }
-        x.ids = ids;
-        x.index = 0;
-    }
-
-    /**
-     * Prepare for calling name(...): return function corresponding to
-     * name and make current top scope available
-     * as ScriptRuntime.lastStoredScriptable() for consumption as thisObj.
-     * The caller must call ScriptRuntime.lastStoredScriptable() immediately
-     * after calling this method.
-     */
-    public static Callable getNameFunctionAndThis(String name,
-                                                  Context cx,
-                                                  Scriptable scope)
-    {
-        Scriptable parent = scope.getParentScope();
-        if (parent == null) {
-            Object result = topScopeName(cx, scope, name);
-            if (!(result instanceof Callable)) {
-                if (result == Scriptable.NOT_FOUND) {
-                    throw notFoundError(scope, name);
-                } else {
-                    throw notFunctionError(result, name);
-                }
-            }
-            // Top scope is not NativeWith or NativeCall => thisObj == scope
-            Scriptable thisObj = scope;
-            storeScriptable(cx, thisObj);
-            return (Callable)result;
-        }
-
-        // name will call storeScriptable(cx, thisObj);
-        return (Callable)nameOrFunction(cx, scope, parent, name, true);
-    }
-
-    /**
-     * Prepare for calling obj[id](...): return function corresponding to
-     * obj[id] and make obj properly converted to Scriptable available
-     * as ScriptRuntime.lastStoredScriptable() for consumption as thisObj.
-     * The caller must call ScriptRuntime.lastStoredScriptable() immediately
-     * after calling this method.
-     */
-    public static Callable getElemFunctionAndThis(Object obj,
-                                                  Object elem,
-                                                  Context cx)
-    {
-        String s = toStringIdOrIndex(cx, elem);
-        if (s != null) {
-            return getPropFunctionAndThis(obj, s, cx);
-        }
-        int index = lastIndexResult(cx);
-
-        Scriptable thisObj = toObjectOrNull(cx, obj);
-        if (thisObj == null) {
-            throw undefCallError(obj, String.valueOf(index));
-        }
-
-        Object value;
-        for (;;) {
-            // Ignore XML lookup as requred by ECMA 357, 11.2.2.1
-            value = ScriptableObject.getProperty(thisObj, index);
-            if (value != Scriptable.NOT_FOUND) {
-                break;
-            }
-            if (!(thisObj instanceof XMLObject)) {
-                break;
-            }
-            XMLObject xmlObject = (XMLObject)thisObj;
-            Scriptable extra = xmlObject.getExtraMethodSource(cx);
-            if (extra == null) {
-                break;
-            }
-            thisObj = extra;
-        }
-        if (!(value instanceof Callable)) {
-            throw notFunctionError(value, elem);
-        }
-
-        storeScriptable(cx, thisObj);
-        return (Callable)value;
-    }
-
-    /**
-     * Prepare for calling obj.property(...): return function corresponding to
-     * obj.property and make obj properly converted to Scriptable available
-     * as ScriptRuntime.lastStoredScriptable() for consumption as thisObj.
-     * The caller must call ScriptRuntime.lastStoredScriptable() immediately
-     * after calling this method.
-     */
-    public static Callable getPropFunctionAndThis(Object obj,
-                                                  String property,
-                                                  Context cx)
-    {
-        Scriptable thisObj = toObjectOrNull(cx, obj);
-        if (thisObj == null) {
-            throw undefCallError(obj, property);
-        }
-
-        Object value;
-        for (;;) {
-            // Ignore XML lookup as required by ECMA 357, 11.2.2.1
-            value = ScriptableObject.getProperty(thisObj, property);
-            if (value != Scriptable.NOT_FOUND) {
-                break;
-            }
-            if (!(thisObj instanceof XMLObject)) {
-                break;
-            }
-            XMLObject xmlObject = (XMLObject)thisObj;
-            Scriptable extra = xmlObject.getExtraMethodSource(cx);
-            if (extra == null) {
-                break;
-            }
-            thisObj = extra;
-        }
-
-        if (!(value instanceof Callable)) {
-            Object noSuchMethod = ScriptableObject.getProperty(thisObj, "__noSuchMethod__");
-            if (noSuchMethod instanceof Callable)
-                value = new NoSuchMethodShim((Callable)noSuchMethod, property);
-            else
-                throw notFunctionError(thisObj, value, property);
-        }
-
-        storeScriptable(cx, thisObj);
-        return (Callable)value;
-    }
-
-    /**
-     * Prepare for calling <expression>(...): return function corresponding to
-     * <expression> and make parent scope of the function available
-     * as ScriptRuntime.lastStoredScriptable() for consumption as thisObj.
-     * The caller must call ScriptRuntime.lastStoredScriptable() immediately
-     * after calling this method.
-     */
-    public static Callable getValueFunctionAndThis(Object value, Context cx)
-    {
-        if (!(value instanceof Callable)) {
-            throw notFunctionError(value);
-        }
-
-        Callable f = (Callable)value;
-        Scriptable thisObj = null;
-        if (f instanceof Scriptable) {
-            thisObj = ((Scriptable)f).getParentScope();
-        }
-        if (thisObj == null) {
-            if (cx.topCallScope == null) throw new IllegalStateException();
-            thisObj = cx.topCallScope;
-        }
-        if (thisObj.getParentScope() != null) {
-            if (thisObj instanceof NativeWith) {
-                // functions defined inside with should have with target
-                // as their thisObj
-            } else if (thisObj instanceof NativeCall) {
-                // nested functions should have top scope as their thisObj
-                thisObj = ScriptableObject.getTopLevelScope(thisObj);
-            }
-        }
-        storeScriptable(cx, thisObj);
-        return f;
-    }
-
-    /**
-     * Perform function call in reference context. Should always
-     * return value that can be passed to
-     * {@link #refGet(Ref, Context)} or {@link #refSet(Ref, Object, Context)}
-     * arbitrary number of times.
-     * The args array reference should not be stored in any object that is
-     * can be GC-reachable after this method returns. If this is necessary,
-     * store args.clone(), not args array itself.
-     */
-    public static Ref callRef(Callable function, Scriptable thisObj,
-                              Object[] args, Context cx)
-    {
-        if (function instanceof RefCallable) {
-            RefCallable rfunction = (RefCallable)function;
-            Ref ref = rfunction.refCall(cx, thisObj, args);
-            if (ref == null) {
-                throw new IllegalStateException(rfunction.getClass().getName()+".refCall() returned null");
-            }
-            return ref;
-        }
-        // No runtime support for now
-        String msg = getMessage1("msg.no.ref.from.function",
-                                 toString(function));
-        throw constructError("ReferenceError", msg);
-    }
-
-    /**
-     * Operator new.
-     *
-     * See ECMA 11.2.2
-     */
-    public static Scriptable newObject(Object fun, Context cx,
-                                       Scriptable scope, Object[] args)
-    {
-        if (!(fun instanceof Function)) {
-            throw notFunctionError(fun);
-        }
-        Function function = (Function)fun;
-        return function.construct(cx, scope, args);
-    }
-
-    public static Object callSpecial(Context cx, Callable fun,
-                                     Scriptable thisObj,
-                                     Object[] args, Scriptable scope,
-                                     Scriptable callerThis, int callType,
-                                     String filename, int lineNumber)
-    {
-        if (callType == Node.SPECIALCALL_EVAL) {
-            if (NativeGlobal.isEvalFunction(fun)) {
-                return evalSpecial(cx, scope, callerThis, args,
-                                   filename, lineNumber);
-            }
-        } else if (callType == Node.SPECIALCALL_WITH) {
-            if (NativeWith.isWithFunction(fun)) {
-                throw Context.reportRuntimeError1("msg.only.from.new",
-                                                  "With");
-            }
-        } else {
-            throw Kit.codeBug();
-        }
-
-        return fun.call(cx, scope, thisObj, args);
-    }
-
-    public static Object newSpecial(Context cx, Object fun,
-                                    Object[] args, Scriptable scope,
-                                    int callType)
-    {
-        if (callType == Node.SPECIALCALL_EVAL) {
-            if (NativeGlobal.isEvalFunction(fun)) {
-                throw typeError1("msg.not.ctor", "eval");
-            }
-        } else if (callType == Node.SPECIALCALL_WITH) {
-            if (NativeWith.isWithFunction(fun)) {
-                return NativeWith.newWithSpecial(cx, scope, args);
-            }
-        } else {
-            throw Kit.codeBug();
-        }
-
-        return newObject(fun, cx, scope, args);
-    }
-
-    /**
-     * Function.prototype.apply and Function.prototype.call
-     *
-     * See Ecma 15.3.4.[34]
-     */
-    public static Object applyOrCall(boolean isApply,
-                                     Context cx, Scriptable scope,
-                                     Scriptable thisObj, Object[] args)
-    {
-        int L = args.length;
-        Callable function = getCallable(thisObj);
-
-        Scriptable callThis = null;
-        if (L != 0) {
-            callThis = toObjectOrNull(cx, args[0]);
-        }
-        if (callThis == null) {
-            // This covers the case of args[0] == (null|undefined) as well.
-            callThis = getTopCallScope(cx);
-        }
-
-        Object[] callArgs;
-        if (isApply) {
-            // Follow Ecma 15.3.4.3
-            callArgs = L <= 1 ? ScriptRuntime.emptyArgs : 
-                getApplyArguments(cx, args[1]);
-        } else {
-            // Follow Ecma 15.3.4.4
-            if (L <= 1) {
-                callArgs = ScriptRuntime.emptyArgs;
-            } else {
-                callArgs = new Object[L - 1];
-                System.arraycopy(args, 1, callArgs, 0, L - 1);
-            }
-        }
-
-        return function.call(cx, scope, callThis, callArgs);
-    }
-
-    static Object[] getApplyArguments(Context cx, Object arg1)
-    {
-        if (arg1 == null || arg1 == Undefined.instance) {
-            return ScriptRuntime.emptyArgs;
-        } else if (arg1 instanceof NativeArray || arg1 instanceof Arguments) {
-            return cx.getElements((Scriptable) arg1);
-        } else {
-            throw ScriptRuntime.typeError0("msg.arg.isnt.array");
-        }
-    }
-
-    static Callable getCallable(Scriptable thisObj)
-    {
-        Callable function;
-        if (thisObj instanceof Callable) {
-            function = (Callable)thisObj;
-        } else {
-            Object value = thisObj.getDefaultValue(ScriptRuntime.FunctionClass);
-            if (!(value instanceof Callable)) {
-                throw ScriptRuntime.notFunctionError(value, thisObj);
-            }
-            function = (Callable)value;
-        }
-        return function;
-    }
-
-    /**
-     * The eval function property of the global object.
-     *
-     * See ECMA 15.1.2.1
-     */
-    public static Object evalSpecial(Context cx, Scriptable scope,
-                                     Object thisArg, Object[] args,
-                                     String filename, int lineNumber)
-    {
-        if (args.length < 1)
-            return Undefined.instance;
-        Object x = args[0];
-        if (!(x instanceof String)) {
-            if (cx.hasFeature(Context.FEATURE_STRICT_MODE) ||
-                cx.hasFeature(Context.FEATURE_STRICT_EVAL))
-            {
-                throw Context.reportRuntimeError0("msg.eval.nonstring.strict");
-            }
-            String message = ScriptRuntime.getMessage0("msg.eval.nonstring");
-            Context.reportWarning(message);
-            return x;
-        }
-        if (filename == null) {
-            int[] linep = new int[1];
-            filename = Context.getSourcePositionFromStack(linep);
-            if (filename != null) {
-                lineNumber = linep[0];
-            } else {
-                filename = "";
-            }
-        }
-        String sourceName = ScriptRuntime.
-            makeUrlForGeneratedScript(true, filename, lineNumber);
-
-        ErrorReporter reporter;
-        reporter = DefaultErrorReporter.forEval(cx.getErrorReporter());
-
-        Evaluator evaluator = Context.createInterpreter();
-        if (evaluator == null) {
-            throw new JavaScriptException("Interpreter not present",
-                    filename, lineNumber);            
-        }
-
-        // Compile with explicit interpreter instance to force interpreter
-        // mode.
-        Script script = cx.compileString((String)x, evaluator,
-                                         reporter, sourceName, 1, null);
-        evaluator.setEvalScriptFlag(script);
-        Callable c = (Callable)script;
-        return c.call(cx, scope, (Scriptable)thisArg, ScriptRuntime.emptyArgs);
-    }
-
-    /**
-     * The typeof operator
-     */
-    public static String typeof(Object value)
-    {
-        if (value == null)
-            return "object";
-        if (value == Undefined.instance)
-            return "undefined";
-        if (value instanceof Scriptable)
-        {
-            if (value instanceof ScriptableObject &&
-                ((ScriptableObject)value).avoidObjectDetection())
-            {
-                return "undefined";
-            }
-            if (value instanceof XMLObject)
-                return "xml";
-            return (value instanceof Callable) ? "function" : "object";
-        }
-        if (value instanceof String)
-            return "string";
-        if (value instanceof Number)
-            return "number";
-        if (value instanceof Boolean)
-            return "boolean";
-        throw errorWithClassName("msg.invalid.type", value);
-    }
-
-    /**
-     * The typeof operator that correctly handles the undefined case
-     */
-    public static String typeofName(Scriptable scope, String id)
-    {
-        Context cx = Context.getContext();
-        Scriptable val = bind(cx, scope, id);
-        if (val == null)
-            return "undefined";
-        return typeof(getObjectProp(val, id, cx));
-    }
-
-    // neg:
-    // implement the '-' operator inline in the caller
-    // as "-toNumber(val)"
-
-    // not:
-    // implement the '!' operator inline in the caller
-    // as "!toBoolean(val)"
-
-    // bitnot:
-    // implement the '~' operator inline in the caller
-    // as "~toInt32(val)"
-
-    public static Object add(Object val1, Object val2, Context cx)
-    {
-        if(val1 instanceof Number && val2 instanceof Number) {
-            return wrapNumber(((Number)val1).doubleValue() +
-                              ((Number)val2).doubleValue());
-        }
-        if (val1 instanceof XMLObject) {
-            Object test = ((XMLObject)val1).addValues(cx, true, val2);
-            if (test != Scriptable.NOT_FOUND) {
-                return test;
-            }
-        }
-        if (val2 instanceof XMLObject) {
-            Object test = ((XMLObject)val2).addValues(cx, false, val1);
-            if (test != Scriptable.NOT_FOUND) {
-                return test;
-            }
-        }
-        if (val1 instanceof Scriptable)
-            val1 = ((Scriptable) val1).getDefaultValue(null);
-        if (val2 instanceof Scriptable)
-            val2 = ((Scriptable) val2).getDefaultValue(null);
-        if (!(val1 instanceof String) && !(val2 instanceof String))
-            if ((val1 instanceof Number) && (val2 instanceof Number))
-                return wrapNumber(((Number)val1).doubleValue() +
-                                  ((Number)val2).doubleValue());
-            else
-                return wrapNumber(toNumber(val1) + toNumber(val2));
-        return toString(val1).concat(toString(val2));
-    }
-
-    public static String add(String val1, Object val2) {
-        return val1.concat(toString(val2));
-    }
-
-    public static String add(Object val1, String val2) {
-        return toString(val1).concat(val2);
-    }
-
-    /**
-     * @deprecated The method is only present for compatibility.
-     */
-    public static Object nameIncrDecr(Scriptable scopeChain, String id,
-                                      int incrDecrMask)
-    {
-        return nameIncrDecr(scopeChain, id, Context.getContext(), incrDecrMask);
-    }
-
-    public static Object nameIncrDecr(Scriptable scopeChain, String id,
-                                      Context cx, int incrDecrMask)
-    {
-        Scriptable target;
-        Object value;
-      search: {
-            do {
-                if (cx.useDynamicScope && scopeChain.getParentScope() == null) {
-                    scopeChain = checkDynamicScope(cx.topCallScope, scopeChain);
-                }
-                target = scopeChain;
-                do {
-                    value = target.get(id, scopeChain);
-                    if (value != Scriptable.NOT_FOUND) {
-                        break search;
-                    }
-                    target = target.getPrototype();
-                } while (target != null);
-                scopeChain = scopeChain.getParentScope();
-            } while (scopeChain != null);
-            throw notFoundError(scopeChain, id);
-        }
-        return doScriptableIncrDecr(target, id, scopeChain, value,
-                                    incrDecrMask);
-    }
-
-    public static Object propIncrDecr(Object obj, String id,
-                                      Context cx, int incrDecrMask)
-    {
-        Scriptable start = toObjectOrNull(cx, obj);
-        if (start == null) {
-            throw undefReadError(obj, id);
-        }
-
-        Scriptable target = start;
-        Object value;
-      search: {
-            do {
-                value = target.get(id, start);
-                if (value != Scriptable.NOT_FOUND) {
-                    break search;
-                }
-                target = target.getPrototype();
-            } while (target != null);
-            start.put(id, start, NaNobj);
-            return NaNobj;
-        }
-        return doScriptableIncrDecr(target, id, start, value,
-                                    incrDecrMask);
-    }
-
-    private static Object doScriptableIncrDecr(Scriptable target,
-                                               String id,
-                                               Scriptable protoChainStart,
-                                               Object value,
-                                               int incrDecrMask)
-    {
-        boolean post = ((incrDecrMask & Node.POST_FLAG) != 0);
-        double number;
-        if (value instanceof Number) {
-            number = ((Number)value).doubleValue();
-        } else {
-            number = toNumber(value);
-            if (post) {
-                // convert result to number
-                value = wrapNumber(number);
-            }
-        }
-        if ((incrDecrMask & Node.DECR_FLAG) == 0) {
-            ++number;
-        } else {
-            --number;
-        }
-        Number result = wrapNumber(number);
-        target.put(id, protoChainStart, result);
-        if (post) {
-            return value;
-        } else {
-            return result;
-        }
-    }
-
-    public static Object elemIncrDecr(Object obj, Object index,
-                                      Context cx, int incrDecrMask)
-    {
-        Object value = getObjectElem(obj, index, cx);
-        boolean post = ((incrDecrMask & Node.POST_FLAG) != 0);
-        double number;
-        if (value instanceof Number) {
-            number = ((Number)value).doubleValue();
-        } else {
-            number = toNumber(value);
-            if (post) {
-                // convert result to number
-                value = wrapNumber(number);
-            }
-        }
-        if ((incrDecrMask & Node.DECR_FLAG) == 0) {
-            ++number;
-        } else {
-            --number;
-        }
-        Number result = wrapNumber(number);
-        setObjectElem(obj, index, result, cx);
-        if (post) {
-            return value;
-        } else {
-            return result;
-        }
-    }
-
-    public static Object refIncrDecr(Ref ref, Context cx, int incrDecrMask)
-    {
-        Object value = ref.get(cx);
-        boolean post = ((incrDecrMask & Node.POST_FLAG) != 0);
-        double number;
-        if (value instanceof Number) {
-            number = ((Number)value).doubleValue();
-        } else {
-            number = toNumber(value);
-            if (post) {
-                // convert result to number
-                value = wrapNumber(number);
-            }
-        }
-        if ((incrDecrMask & Node.DECR_FLAG) == 0) {
-            ++number;
-        } else {
-            --number;
-        }
-        Number result = wrapNumber(number);
-        ref.set(cx, result);
-        if (post) {
-            return value;
-        } else {
-            return result;
-        }
-    }
-
-    private static Object toPrimitive(Object val)
-    {
-        if (!(val instanceof Scriptable)) {
-            return val;
-        }
-        Scriptable s = (Scriptable)val;
-        Object result = s.getDefaultValue(null);
-        if (result instanceof Scriptable)
-            throw typeError0("msg.bad.default.value");
-        return result;
-    }
-
-    /**
-     * Equality
-     *
-     * See ECMA 11.9
-     */
-    public static boolean eq(Object x, Object y)
-    {
-        if (x == null || x == Undefined.instance) {
-            if (y == null || y == Undefined.instance) {
-                return true;
-            }
-            if (y instanceof ScriptableObject) {
-                Object test = ((ScriptableObject)y).equivalentValues(x);
-                if (test != Scriptable.NOT_FOUND) {
-                    return ((Boolean)test).booleanValue();
-                }
-            }
-            return false;
-        } else if (x instanceof Number) {
-            return eqNumber(((Number)x).doubleValue(), y);
-        } else if (x instanceof String) {
-            return eqString((String)x, y);
-        } else if (x instanceof Boolean) {
-            boolean b = ((Boolean)x).booleanValue();
-            if (y instanceof Boolean) {
-                return b == ((Boolean)y).booleanValue();
-            }
-            if (y instanceof ScriptableObject) {
-                Object test = ((ScriptableObject)y).equivalentValues(x);
-                if (test != Scriptable.NOT_FOUND) {
-                    return ((Boolean)test).booleanValue();
-                }
-            }
-            return eqNumber(b ? 1.0 : 0.0, y);
-        } else if (x instanceof Scriptable) {
-            if (y instanceof Scriptable) {
-                if (x == y) {
-                    return true;
-                }
-                if (x instanceof ScriptableObject) {
-                    Object test = ((ScriptableObject)x).equivalentValues(y);
-                    if (test != Scriptable.NOT_FOUND) {
-                        return ((Boolean)test).booleanValue();
-                    }
-                }
-                if (y instanceof ScriptableObject) {
-                    Object test = ((ScriptableObject)y).equivalentValues(x);
-                    if (test != Scriptable.NOT_FOUND) {
-                        return ((Boolean)test).booleanValue();
-                    }
-                }
-                if (x instanceof Wrapper && y instanceof Wrapper) {
-                    // See bug 413838. Effectively an extension to ECMA for
-                    // the LiveConnect case.
-                    Object unwrappedX = ((Wrapper)x).unwrap();
-                    Object unwrappedY = ((Wrapper)y).unwrap();
-                    return unwrappedX == unwrappedY ||
-                           (isPrimitive(unwrappedX) &&
-                            isPrimitive(unwrappedY) &&
-                            eq(unwrappedX, unwrappedY));
-                }
-                return false;
-            } else if (y instanceof Boolean) {
-                if (x instanceof ScriptableObject) {
-                    Object test = ((ScriptableObject)x).equivalentValues(y);
-                    if (test != Scriptable.NOT_FOUND) {
-                        return ((Boolean)test).booleanValue();
-                    }
-                }
-                double d = ((Boolean)y).booleanValue() ? 1.0 : 0.0;
-                return eqNumber(d, x);
-            } else if (y instanceof Number) {
-                return eqNumber(((Number)y).doubleValue(), x);
-            } else if (y instanceof String) {
-                return eqString((String)y, x);
-            }
-            // covers the case when y == Undefined.instance as well
-            return false;
-        } else {
-            warnAboutNonJSObject(x);
-            return x == y;
-        }
-    }
-    
-    private static boolean isPrimitive(Object obj) {
-        return (obj instanceof Number) || (obj instanceof String) ||
-               (obj instanceof Boolean);
-    }
-
-    static boolean eqNumber(double x, Object y)
-    {
-        for (;;) {
-            if (y == null || y == Undefined.instance) {
-                return false;
-            } else if (y instanceof Number) {
-                return x == ((Number)y).doubleValue();
-            } else if (y instanceof String) {
-                return x == toNumber(y);
-            } else if (y instanceof Boolean) {
-                return x == (((Boolean)y).booleanValue() ? 1.0 : +0.0);
-            } else if (y instanceof Scriptable) {
-                if (y instanceof ScriptableObject) {
-                    Object xval = wrapNumber(x);
-                    Object test = ((ScriptableObject)y).equivalentValues(xval);
-                    if (test != Scriptable.NOT_FOUND) {
-                        return ((Boolean)test).booleanValue();
-                    }
-                }
-                y = toPrimitive(y);
-            } else {
-                warnAboutNonJSObject(y);
-                return false;
-            }
-        }
-    }
-
-    private static boolean eqString(String x, Object y)
-    {
-        for (;;) {
-            if (y == null || y == Undefined.instance) {
-                return false;
-            } else if (y instanceof String) {
-                return x.equals(y);
-            } else if (y instanceof Number) {
-                return toNumber(x) == ((Number)y).doubleValue();
-            } else if (y instanceof Boolean) {
-                return toNumber(x) == (((Boolean)y).booleanValue() ? 1.0 : 0.0);
-            } else if (y instanceof Scriptable) {
-                if (y instanceof ScriptableObject) {
-                    Object test = ((ScriptableObject)y).equivalentValues(x);
-                    if (test != Scriptable.NOT_FOUND) {
-                        return ((Boolean)test).booleanValue();
-                    }
-                }
-                y = toPrimitive(y);
-                continue;
-            } else {
-                warnAboutNonJSObject(y);
-                return false;
-            }
-        }
-    }
-    public static boolean shallowEq(Object x, Object y)
-    {
-        if (x == y) {
-            if (!(x instanceof Number)) {
-                return true;
-            }
-            // NaN check
-            double d = ((Number)x).doubleValue();
-            return d == d;
-        }
-        if (x == null || x == Undefined.instance) {
-            return false;
-        } else if (x instanceof Number) {
-            if (y instanceof Number) {
-                return ((Number)x).doubleValue() == ((Number)y).doubleValue();
-            }
-        } else if (x instanceof String) {
-            if (y instanceof String) {
-                return x.equals(y);
-            }
-        } else if (x instanceof Boolean) {
-            if (y instanceof Boolean) {
-                return x.equals(y);
-            }
-        } else if (x instanceof Scriptable) {
-            if (x instanceof Wrapper && y instanceof Wrapper) {
-                return ((Wrapper)x).unwrap() == ((Wrapper)y).unwrap();
-            }
-        } else {
-            warnAboutNonJSObject(x);
-            return x == y;
-        }
-        return false;
-    }
-
-    /**
-     * The instanceof operator.
-     *
-     * @return a instanceof b
-     */
-    public static boolean instanceOf(Object a, Object b, Context cx)
-    {
-        // Check RHS is an object
-        if (! (b instanceof Scriptable)) {
-            throw typeError0("msg.instanceof.not.object");
-        }
-
-        // for primitive values on LHS, return false
-        // XXX we may want to change this so that
-        // 5 instanceof Number == true
-        if (! (a instanceof Scriptable))
-            return false;
-
-        return ((Scriptable)b).hasInstance((Scriptable)a);
-    }
-
-    /**
-     * Delegates to
-     *
-     * @return true iff rhs appears in lhs' proto chain
-     */
-    public static boolean jsDelegatesTo(Scriptable lhs, Scriptable rhs) {
-        Scriptable proto = lhs.getPrototype();
-
-        while (proto != null) {
-            if (proto.equals(rhs)) return true;
-            proto = proto.getPrototype();
-        }
-
-        return false;
-    }
-
-    /**
-     * The in operator.
-     *
-     * This is a new JS 1.3 language feature.  The in operator mirrors
-     * the operation of the for .. in construct, and tests whether the
-     * rhs has the property given by the lhs.  It is different from the
-     * for .. in construct in that:
-     * <BR> - it doesn't perform ToObject on the right hand side
-     * <BR> - it returns true for DontEnum properties.
-     * @param a the left hand operand
-     * @param b the right hand operand
-     *
-     * @return true if property name or element number a is a property of b
-     */
-    public static boolean in(Object a, Object b, Context cx)
-    {
-        if (!(b instanceof Scriptable)) {
-            throw typeError0("msg.instanceof.not.object");
-        }
-
-        return hasObjectElem((Scriptable)b, a, cx);
-    }
-
-    public static boolean cmp_LT(Object val1, Object val2)
-    {
-        double d1, d2;
-        if (val1 instanceof Number && val2 instanceof Number) {
-            d1 = ((Number)val1).doubleValue();
-            d2 = ((Number)val2).doubleValue();
-        } else {
-            if (val1 instanceof Scriptable)
-                val1 = ((Scriptable) val1).getDefaultValue(NumberClass);
-            if (val2 instanceof Scriptable)
-                val2 = ((Scriptable) val2).getDefaultValue(NumberClass);
-            if (val1 instanceof String && val2 instanceof String) {
-                return ((String)val1).compareTo((String)val2) < 0;
-            }
-            d1 = toNumber(val1);
-            d2 = toNumber(val2);
-        }
-        return d1 < d2;
-    }
-
-    public static boolean cmp_LE(Object val1, Object val2)
-    {
-        double d1, d2;
-        if (val1 instanceof Number && val2 instanceof Number) {
-            d1 = ((Number)val1).doubleValue();
-            d2 = ((Number)val2).doubleValue();
-        } else {
-            if (val1 instanceof Scriptable)
-                val1 = ((Scriptable) val1).getDefaultValue(NumberClass);
-            if (val2 instanceof Scriptable)
-                val2 = ((Scriptable) val2).getDefaultValue(NumberClass);
-            if (val1 instanceof String && val2 instanceof String) {
-                return ((String)val1).compareTo((String)val2) <= 0;
-            }
-            d1 = toNumber(val1);
-            d2 = toNumber(val2);
-        }
-        return d1 <= d2;
-    }
-
-    // ------------------
-    // Statements
-    // ------------------
-
-    public static ScriptableObject getGlobal(Context cx) {
-        final String GLOBAL_CLASS = "org.mozilla.javascript.tools.shell.Global";
-        Class globalClass = Kit.classOrNull(GLOBAL_CLASS);
-        if (globalClass != null) {
-            try {
-                Class[] parm = { ScriptRuntime.ContextClass };
-                Constructor globalClassCtor = globalClass.getConstructor(parm);
-                Object[] arg = { cx };
-                return (ScriptableObject) globalClassCtor.newInstance(arg);
-            } catch (Exception e) {
-                // fall through...
-            }
-        }
-        return new ImporterTopLevel(cx);
-    }
-
-    public static boolean hasTopCall(Context cx)
-    {
-        return (cx.topCallScope != null);
-    }
-
-    public static Scriptable getTopCallScope(Context cx)
-    {
-        Scriptable scope = cx.topCallScope;
-        if (scope == null) {
-            throw new IllegalStateException();
-        }
-        return scope;
-    }
-
-    public static Object doTopCall(Callable callable,
-                                   Context cx, Scriptable scope,
-                                   Scriptable thisObj, Object[] args)
-    {
-        if (scope == null) throw new IllegalArgumentException();
-        if (cx.topCallScope != null) throw new IllegalStateException();
-
-        Object result;
-        cx.topCallScope = ScriptableObject.getTopLevelScope(scope);
-        cx.useDynamicScope = cx.hasFeature(Context.FEATURE_DYNAMIC_SCOPE);
-        ContextFactory f = cx.getFactory();
-        try {
-            result = f.doTopCall(callable, cx, scope, thisObj, args);
-        } finally {
-            cx.topCallScope = null;
-            // Cleanup cached references
-            cx.cachedXMLLib = null;
-
-            if (cx.currentActivationCall != null) {
-                // Function should always call exitActivationFunction
-                // if it creates activation record
-                throw new IllegalStateException();
-            }
-        }
-        return result;
-    }
-
-    /**
-     * Return <tt>possibleDynamicScope</tt> if <tt>staticTopScope</tt>
-     * is present on its prototype chain and return <tt>staticTopScope</tt>
-     * otherwise.
-     * Should only be called when <tt>staticTopScope</tt> is top scope.
-     */
-    static Scriptable checkDynamicScope(Scriptable possibleDynamicScope,
-                                        Scriptable staticTopScope)
-    {
-        // Return cx.topCallScope if scope
-        if (possibleDynamicScope == staticTopScope) {
-            return possibleDynamicScope;
-        }
-        Scriptable proto = possibleDynamicScope;
-        for (;;) {
-            proto = proto.getPrototype();
-            if (proto == staticTopScope) {
-                return possibleDynamicScope;
-            }
-            if (proto == null) {
-                return staticTopScope;
-            }
-        }
-    }
-    
-    public static void addInstructionCount(Context cx, int instructionsToAdd)
-    {
-    	cx.instructionCount += instructionsToAdd;
-        if (cx.instructionCount > cx.instructionThreshold) 
-        {
-            cx.observeInstructionCount(cx.instructionCount);
-            cx.instructionCount = 0;
-        }
-    }
-
-    public static void initScript(NativeFunction funObj, Scriptable thisObj,
-                                  Context cx, Scriptable scope,
-                                  boolean evalScript)
-    {
-        if (cx.topCallScope == null)
-            throw new IllegalStateException();
-
-        int varCount = funObj.getParamAndVarCount();
-        if (varCount != 0) {
-
-            Scriptable varScope = scope;
-            // Never define any variables from var statements inside with
-            // object. See bug 38590.
-            while (varScope instanceof NativeWith) {
-                varScope = varScope.getParentScope();
-            }
-
-            for (int i = varCount; i-- != 0;) {
-                String name = funObj.getParamOrVarName(i);
-                boolean isConst = funObj.getParamOrVarConst(i);
-                // Don't overwrite existing def if already defined in object
-                // or prototypes of object.
-                if (!ScriptableObject.hasProperty(scope, name)) {
-                    if (!evalScript) {
-                        // Global var definitions are supposed to be DONTDELETE
-                        if (isConst)
-                            ScriptableObject.defineConstProperty(varScope, name);
-                        else
-                            ScriptableObject.defineProperty(
-                                varScope, name, Undefined.instance,
-                                ScriptableObject.PERMANENT);
-                    } else {
-                        varScope.put(name, varScope, Undefined.instance);
-                    }
-                } else {
-                    ScriptableObject.redefineProperty(scope, name, isConst);
-                }
-            }
-        }
-    }
-
-    public static Scriptable createFunctionActivation(NativeFunction funObj,
-                                                      Scriptable scope,
-                                                      Object[] args)
-    {
-        return new NativeCall(funObj, scope, args);
-    }
-
-
-    public static void enterActivationFunction(Context cx,
-                                               Scriptable scope)
-    {
-        if (cx.topCallScope == null)
-            throw new IllegalStateException();
-        NativeCall call = (NativeCall)scope;
-        call.parentActivationCall = cx.currentActivationCall;
-        cx.currentActivationCall = call;
-    }
-
-    public static void exitActivationFunction(Context cx)
-    {
-        NativeCall call = cx.currentActivationCall;
-        cx.currentActivationCall = call.parentActivationCall;
-        call.parentActivationCall = null;
-    }
-
-    static NativeCall findFunctionActivation(Context cx, Function f)
-    {
-        NativeCall call = cx.currentActivationCall;
-        while (call != null) {
-            if (call.function == f)
-                return call;
-            call = call.parentActivationCall;
-        }
-        return null;
-    }
-
-    public static Scriptable newCatchScope(Throwable t,
-                                           Scriptable lastCatchScope,
-                                           String exceptionName,
-                                           Context cx, Scriptable scope)
-    {
-        Object obj;
-        boolean cacheObj;
-
-      getObj:
-        if (t instanceof JavaScriptException) {
-            cacheObj = false;
-            obj = ((JavaScriptException)t).getValue();
-        } else {
-            cacheObj = true;
-
-            // Create wrapper object unless it was associated with
-            // the previous scope object
-
-            if (lastCatchScope != null) {
-                NativeObject last = (NativeObject)lastCatchScope;
-                obj = last.getAssociatedValue(t);
-                if (obj == null) Kit.codeBug();
-                break getObj;
-            }
-
-            RhinoException re;
-            String errorName;
-            String errorMsg;
-            Throwable javaException = null;
-
-            if (t instanceof EcmaError) {
-                EcmaError ee = (EcmaError)t;
-                re = ee;
-                errorName = ee.getName();
-                errorMsg = ee.getErrorMessage();
-            } else if (t instanceof WrappedException) {
-                WrappedException we = (WrappedException)t;
-                re = we;
-                javaException = we.getWrappedException();
-                errorName = "JavaException";
-                errorMsg = javaException.getClass().getName()
-                           +": "+javaException.getMessage();
-            } else if (t instanceof EvaluatorException) {
-                // Pure evaluator exception, nor WrappedException instance
-                EvaluatorException ee = (EvaluatorException)t;
-                re = ee;
-                errorName = "InternalError";
-                errorMsg = ee.getMessage();
-            } else if (cx.hasFeature(Context.FEATURE_ENHANCED_JAVA_ACCESS)) {
-                // With FEATURE_ENHANCED_JAVA_ACCESS, scripts can catch
-                // all exception types
-                re = new WrappedException(t);
-                errorName = "JavaException";
-                errorMsg = t.toString();
-            } else {
-                // Script can catch only instances of JavaScriptException,
-                // EcmaError and EvaluatorException
-                throw Kit.codeBug();
-            }
-
-            String sourceUri = re.sourceName();
-            if (sourceUri == null) {
-                sourceUri = "";
-            }
-            int line = re.lineNumber();
-            Object args[];
-            if (line > 0) {
-                args = new Object[] { errorMsg, sourceUri, new Integer(line) };
-            } else {
-                args = new Object[] { errorMsg, sourceUri };
-            }
-
-            Scriptable errorObject = cx.newObject(scope, errorName, args);
-            ScriptableObject.putProperty(errorObject, "name", errorName);
-
-            if (javaException != null) {
-                Object wrap = cx.getWrapFactory().wrap(cx, scope, javaException,
-                                                       null);
-                ScriptableObject.defineProperty(
-                    errorObject, "javaException", wrap,
-                    ScriptableObject.PERMANENT | ScriptableObject.READONLY);
-            }
-            Object wrap = cx.getWrapFactory().wrap(cx, scope, re, null);
-            ScriptableObject.defineProperty(
-                errorObject, "rhinoException", wrap,
-                ScriptableObject.PERMANENT | ScriptableObject.READONLY);
-
-            obj = errorObject;
-        }
-
-        NativeObject catchScopeObject = new NativeObject();
-        // See ECMA 12.4
-        catchScopeObject.defineProperty(
-            exceptionName, obj, ScriptableObject.PERMANENT);
-
-        // Add special Rhino object __exception__ defined in the catch
-        // scope that can be used to retrieve the Java exception associated
-        // with the JavaScript exception (to get stack trace info, etc.)
-        /*APPJET NOJAVA*/
-        /*catchScopeObject.defineProperty(
-            "__exception__", Context.javaToJS(t, scope),
-            ScriptableObject.PERMANENT|ScriptableObject.DONTENUM);*/
-
-        if (cacheObj) {
-            catchScopeObject.associateValue(t, obj);
-        }
-        return catchScopeObject;
-    }
-
-    public static Scriptable enterWith(Object obj, Context cx,
-                                       Scriptable scope)
-    {
-        Scriptable sobj = toObjectOrNull(cx, obj);
-        if (sobj == null) {
-            throw typeError1("msg.undef.with", toString(obj));
-        }
-        if (sobj instanceof XMLObject) {
-            XMLObject xmlObject = (XMLObject)sobj;
-            return xmlObject.enterWith(scope);
-        }
-        return new NativeWith(scope, sobj);
-    }
-
-    public static Scriptable leaveWith(Scriptable scope)
-    {
-        NativeWith nw = (NativeWith)scope;
-        return nw.getParentScope();
-    }
-
-    public static Scriptable enterDotQuery(Object value, Scriptable scope)
-    {
-        if (!(value instanceof XMLObject)) {
-            throw notXmlError(value);
-        }
-        XMLObject object = (XMLObject)value;
-        return object.enterDotQuery(scope);
-    }
-
-    public static Object updateDotQuery(boolean value, Scriptable scope)
-    {
-        // Return null to continue looping
-        NativeWith nw = (NativeWith)scope;
-        return nw.updateDotQuery(value);
-    }
-
-    public static Scriptable leaveDotQuery(Scriptable scope)
-    {
-        NativeWith nw = (NativeWith)scope;
-        return nw.getParentScope();
-    }
-
-    public static void setFunctionProtoAndParent(BaseFunction fn,
-                                                 Scriptable scope)
-    {
-        fn.setParentScope(scope);
-        fn.setPrototype(ScriptableObject.getFunctionPrototype(scope));
-    }
-
-    public static void setObjectProtoAndParent(ScriptableObject object,
-                                               Scriptable scope)
-    {
-        // Compared with function it always sets the scope to top scope
-        scope = ScriptableObject.getVeryTopLevelScope(scope); // APPJET
-        object.setParentScope(scope);
-        Scriptable proto
-            = ScriptableObject.getClassPrototype(scope, object.getClassName());
-        object.setPrototype(proto);
-    }
-
-    public static void initFunction(Context cx, Scriptable scope,
-                                    NativeFunction function, int type,
-                                    boolean fromEvalCode)
-    {
-        if (type == FunctionNode.FUNCTION_STATEMENT) {
-            String name = function.getFunctionName();
-            if (name != null && name.length() != 0) {
-                if (!fromEvalCode) {
-                    // ECMA specifies that functions defined in global and
-                    // function scope outside eval should have DONTDELETE set.
-                    ScriptableObject.defineProperty
-                        (scope, name, function, ScriptableObject.PERMANENT);
-                } else {
-                    scope.put(name, scope, function);
-                }
-            }
-        } else if (type == FunctionNode.FUNCTION_EXPRESSION_STATEMENT) {
-            String name = function.getFunctionName();
-            if (name != null && name.length() != 0) {
-                // Always put function expression statements into initial
-                // activation object ignoring the with statement to follow
-                // SpiderMonkey
-                while (scope instanceof NativeWith) {
-                    scope = scope.getParentScope();
-                }
-                scope.put(name, scope, function);
-            }
-        } else {
-            throw Kit.codeBug();
-        }
-    }
-
-    public static Scriptable newArrayLiteral(Object[] objects,
-                                             int[] skipIndices,
-                                             Context cx, Scriptable scope)
-    {
-        final int SKIP_DENSITY = 2;
-        int count = objects.length;
-        int skipCount = 0;
-        if (skipIndices != null) {
-            skipCount = skipIndices.length;
-        }
-        int length = count + skipCount;
-        if (length > 1 && skipCount * SKIP_DENSITY < length) {
-            // If not too sparse, create whole array for constructor
-            Object[] sparse;
-            if (skipCount == 0) {
-                sparse = objects;
-            } else {
-                sparse = new Object[length];
-                int skip = 0;
-                for (int i = 0, j = 0; i != length; ++i) {
-                    if (skip != skipCount && skipIndices[skip] == i) {
-                        sparse[i] = Scriptable.NOT_FOUND;
-                        ++skip;
-                        continue;
-                    }
-                    sparse[i] = objects[j];
-                    ++j;
-                }
-            }
-            return cx.newObject(scope, "Array", sparse);
-        }
-        
-        Scriptable arrayObj = cx.newObject(scope, "Array",
-                                           ScriptRuntime.emptyArgs);
-        int skip = 0;
-        for (int i = 0, j = 0; i != length; ++i) {
-            if (skip != skipCount && skipIndices[skip] == i) {
-                ++skip;
-                continue;
-            }
-            ScriptableObject.putProperty(arrayObj, i, objects[j]);
-            ++j;
-        }
-        return arrayObj;
-    }
-
-  /**
-   * This method is here for backward compat with existing compiled code.  It
-   * is called when an object literal is compiled.  The next instance will be
-   * the version called from new code.
-   * @deprecated This method only present for compatibility.
-   */
-    public static Scriptable newObjectLiteral(Object[] propertyIds,
-                                              Object[] propertyValues,
-                                              Context cx, Scriptable scope)
-    {
-        // This will initialize to all zeros, exactly what we need for old-style
-        // getterSetters values (no getters or setters in the list)
-        int [] getterSetters = new int[propertyIds.length];
-        return newObjectLiteral(propertyIds, propertyValues, getterSetters,
-                cx, scope);
-    }
-
-    public static Scriptable newObjectLiteral(Object[] propertyIds,
-                                              Object[] propertyValues,
-                                              int [] getterSetters,
-                                              Context cx, Scriptable scope)
-    {
-        Scriptable object = cx.newObject(scope);
-        for (int i = 0, end = propertyIds.length; i != end; ++i) {
-            Object id = propertyIds[i];
-            int getterSetter = getterSetters[i];
-            Object value = propertyValues[i];
-            if (id instanceof String) {
-                if (getterSetter == 0)
-                    ScriptableObject.putProperty(object, (String)id, value);
-                else {
-                    Callable fun;
-                    String definer;
-                    if (getterSetter < 0)   // < 0 means get foo() ...
-                        definer = "__defineGetter__";
-                    else
-                        definer = "__defineSetter__";
-                    fun = getPropFunctionAndThis(object, definer, cx);
-                    // Must consume the last scriptable object in cx
-                    lastStoredScriptable(cx);
-                    Object[] outArgs = new Object[2];
-                    outArgs[0] = id;
-                    outArgs[1] = value;
-                    fun.call(cx, scope, object, outArgs);
-                }              
-            } else {
-                int index = ((Integer)id).intValue();
-                ScriptableObject.putProperty(object, index, value);
-            }
-        }
-        return object;
-    }
-
-    public static boolean isArrayObject(Object obj)
-    {
-        return obj instanceof NativeArray || obj instanceof Arguments;
-    }
-
-    public static Object[] getArrayElements(Scriptable object)
-    {
-        Context cx = Context.getContext();
-        long longLen = NativeArray.getLengthProperty(cx, object);
-        if (longLen > Integer.MAX_VALUE) {
-            // arrays beyond  MAX_INT is not in Java in any case
-            throw new IllegalArgumentException();
-        }
-        int len = (int) longLen;
-        if (len == 0) {
-            return ScriptRuntime.emptyArgs;
-        } else {
-            Object[] result = new Object[len];
-            for (int i=0; i < len; i++) {
-                Object elem = ScriptableObject.getProperty(object, i);
-                result[i] = (elem == Scriptable.NOT_FOUND) ? Undefined.instance
-                                                           : elem;
-            }
-            return result;
-        }
-    }
-
-    static void checkDeprecated(Context cx, String name) {
-        int version = cx.getLanguageVersion();
-        if (version >= Context.VERSION_1_4 || version == Context.VERSION_DEFAULT) {
-            String msg = getMessage1("msg.deprec.ctor", name);
-            if (version == Context.VERSION_DEFAULT)
-                Context.reportWarning(msg);
-            else
-                throw Context.reportRuntimeError(msg);
-        }
-    }
-
-    public static String getMessage0(String messageId)
-    {
-        return getMessage(messageId, null);
-    }
-
-    public static String getMessage1(String messageId, Object arg1)
-    {
-        Object[] arguments = {arg1};
-        return getMessage(messageId, arguments);
-    }
-
-    public static String getMessage2(
-        String messageId, Object arg1, Object arg2)
-    {
-        Object[] arguments = {arg1, arg2};
-        return getMessage(messageId, arguments);
-    }
-
-    public static String getMessage3(
-        String messageId, Object arg1, Object arg2, Object arg3)
-    {
-        Object[] arguments = {arg1, arg2, arg3};
-        return getMessage(messageId, arguments);
-    }
-
-    public static String getMessage4(
-        String messageId, Object arg1, Object arg2, Object arg3, Object arg4)
-    {
-        Object[] arguments = {arg1, arg2, arg3, arg4};
-        return getMessage(messageId, arguments);
-    }
-
-    /* OPT there's a noticable delay for the first error!  Maybe it'd
-     * make sense to use a ListResourceBundle instead of a properties
-     * file to avoid (synchronized) text parsing.
-     */
-    public static String getMessage(String messageId, Object[] arguments)
-    {
-        final String defaultResource
-            = "org.mozilla.javascript.resources.Messages";
-
-        Context cx = Context.getCurrentContext();
-        Locale locale = cx != null ? cx.getLocale() : Locale.getDefault();
-
-        // ResourceBundle does cacheing.
-        ResourceBundle rb = ResourceBundle.getBundle(defaultResource, locale);
-
-        String formatString;
-        try {
-            formatString = rb.getString(messageId);
-        } catch (java.util.MissingResourceException mre) {
-            throw new RuntimeException
-                ("no message resource found for message property "+ messageId);
-        }
-
-        /*
-         * It's OK to format the string, even if 'arguments' is null;
-         * we need to format it anyway, to make double ''s collapse to
-         * single 's.
-         */
-        MessageFormat formatter = new MessageFormat(formatString);
-        return formatter.format(arguments);
-    }
-
-    public static EcmaError constructError(String error, String message)
-    {
-        int[] linep = new int[1];
-        String filename = Context.getSourcePositionFromStack(linep);
-        return constructError(error, message, filename, linep[0], null, 0);
-    }
-    
-    public static EcmaError constructError(String error,
-                                           String message,
-                                           int lineNumberDelta)
-    {
-        int[] linep = new int[1];
-        String filename = Context.getSourcePositionFromStack(linep);
-        if (linep[0] != 0) {
-            linep[0] += lineNumberDelta;
-        }
-        return constructError(error, message, filename, linep[0], null, 0);
-    }
-
-    public static EcmaError constructError(String error,
-                                           String message,
-                                           String sourceName,
-                                           int lineNumber,
-                                           String lineSource,
-                                           int columnNumber)
-    {
-        return new EcmaError(error, message, sourceName,
-                             lineNumber, lineSource, columnNumber);
-    }
-
-    public static EcmaError typeError(String message)
-    {
-        return constructError("TypeError", message);
-    }
-
-    public static EcmaError typeError0(String messageId)
-    {
-        String msg = getMessage0(messageId);
-        return typeError(msg);
-    }
-
-    public static EcmaError typeError1(String messageId, String arg1)
-    {
-        String msg = getMessage1(messageId, arg1);
-        return typeError(msg);
-    }
-
-    public static EcmaError typeError2(String messageId, String arg1,
-                                       String arg2)
-    {
-        String msg = getMessage2(messageId, arg1, arg2);
-        return typeError(msg);
-    }
-
-    public static EcmaError typeError3(String messageId, String arg1,
-                                       String arg2, String arg3)
-    {
-        String msg = getMessage3(messageId, arg1, arg2, arg3);
-        return typeError(msg);
-    }
-
-    public static RuntimeException undefReadError(Object object, Object id)
-    {
-        String idStr = (id == null) ? "null" : id.toString();
-        return typeError2("msg.undef.prop.read", toString(object), idStr);
-    }
-
-    public static RuntimeException undefCallError(Object object, Object id)
-    {
-        String idStr = (id == null) ? "null" : id.toString();
-        return typeError2("msg.undef.method.call", toString(object), idStr);
-    }
-
-    public static RuntimeException undefWriteError(Object object,
-                                                   Object id,
-                                                   Object value)
-    {
-        String idStr = (id == null) ? "null" : id.toString();
-        String valueStr = (value instanceof Scriptable)
-                          ? value.toString() : toString(value);
-        return typeError3("msg.undef.prop.write", toString(object), idStr,
-                          valueStr);
-    }
-
-    public static RuntimeException notFoundError(Scriptable object,
-                                                 String property)
-    {
-        // XXX: use object to improve the error message
-        String msg = getMessage1("msg.is.not.defined", property);
-        throw constructError("ReferenceError", msg);
-    }
-
-    public static RuntimeException notFunctionError(Object value)
-    {
-        return notFunctionError(value, value);
-    }
-
-    public static RuntimeException notFunctionError(Object value,
-                                                    Object messageHelper)
-    {
-        // Use value for better error reporting
-        String msg = (messageHelper == null)
-                     ? "null" : messageHelper.toString();
-        if (value == Scriptable.NOT_FOUND) {
-            return typeError1("msg.function.not.found", msg);
-        }
-        return typeError2("msg.isnt.function", msg, typeof(value));
-    }
-
-    public static RuntimeException notFunctionError(Object obj, Object value,
-            String propertyName)
-    {
-        // Use obj and value for better error reporting
-        String objString = toString(obj);
-        if (value == Scriptable.NOT_FOUND) {
-            return typeError2("msg.function.not.found.in", propertyName,
-                    objString);
-        }
-        return typeError3("msg.isnt.function.in", propertyName, objString,
-                          typeof(value));
-    }
-
-    private static RuntimeException notXmlError(Object value)
-    {
-        throw typeError1("msg.isnt.xml.object", toString(value));
-    }
-
-    private static void warnAboutNonJSObject(Object nonJSObject)
-    {
-        String message =
-"RHINO USAGE WARNING: Missed Context.javaToJS() conversion:\n"
-+"Rhino runtime detected object "+nonJSObject+" of class "+nonJSObject.getClass().getName()+" where it expected String, Number, Boolean or Scriptable instance. Please check your code for missing Context.javaToJS() call.";
-        Context.reportWarning(message);
-        // Just to be sure that it would be noticed
-        System.err.println(message);
-    }
-
-    public static RegExpProxy getRegExpProxy(Context cx)
-    {
-        return cx.getRegExpProxy();
-    }
-
-    public static void setRegExpProxy(Context cx, RegExpProxy proxy)
-    {
-        if (proxy == null) throw new IllegalArgumentException();
-        cx.regExpProxy = proxy;
-    }
-
-    public static RegExpProxy checkRegExpProxy(Context cx)
-    {
-        RegExpProxy result = getRegExpProxy(cx);
-        if (result == null) {
-            throw Context.reportRuntimeError0("msg.no.regexp");
-        }
-        return result;
-    }
-
-    private static XMLLib currentXMLLib(Context cx)
-    {
-        // Scripts should be running to access this
-        if (cx.topCallScope == null)
-            throw new IllegalStateException();
-
-        XMLLib xmlLib = cx.cachedXMLLib;
-        if (xmlLib == null) {
-            xmlLib = XMLLib.extractFromScope(cx.topCallScope);
-            if (xmlLib == null)
-                throw new IllegalStateException();
-            cx.cachedXMLLib = xmlLib;
-        }
-
-        return xmlLib;
-    }
-
-    /**
-     * Escapes the reserved characters in a value of an attribute
-     *
-     * @param value Unescaped text
-     * @return The escaped text
-     */
-    public static String escapeAttributeValue(Object value, Context cx)
-    {
-        XMLLib xmlLib = currentXMLLib(cx);
-        return xmlLib.escapeAttributeValue(value);
-    }
-
-    /**
-     * Escapes the reserved characters in a value of a text node
-     *
-     * @param value Unescaped text
-     * @return The escaped text
-     */
-    public static String escapeTextValue(Object value, Context cx)
-    {
-        XMLLib xmlLib = currentXMLLib(cx);
-        return xmlLib.escapeTextValue(value);
-    }
-
-    public static Ref memberRef(Object obj, Object elem,
-                                Context cx, int memberTypeFlags)
-    {
-        if (!(obj instanceof XMLObject)) {
-            throw notXmlError(obj);
-        }
-        XMLObject xmlObject = (XMLObject)obj;
-        return xmlObject.memberRef(cx, elem, memberTypeFlags);
-    }
-
-    public static Ref memberRef(Object obj, Object namespace, Object elem,
-                                Context cx, int memberTypeFlags)
-    {
-        if (!(obj instanceof XMLObject)) {
-            throw notXmlError(obj);
-        }
-        XMLObject xmlObject = (XMLObject)obj;
-        return xmlObject.memberRef(cx, namespace, elem, memberTypeFlags);
-    }
-
-    public static Ref nameRef(Object name, Context cx,
-                              Scriptable scope, int memberTypeFlags)
-    {
-        XMLLib xmlLib = currentXMLLib(cx);
-        return xmlLib.nameRef(cx, name, scope, memberTypeFlags);
-    }
-
-    public static Ref nameRef(Object namespace, Object name, Context cx,
-                              Scriptable scope, int memberTypeFlags)
-    {
-        XMLLib xmlLib = currentXMLLib(cx);
-        return xmlLib.nameRef(cx, namespace, name, scope, memberTypeFlags);
-    }
-
-    private static void storeIndexResult(Context cx, int index)
-    {
-        cx.scratchIndex = index;
-    }
-
-    static int lastIndexResult(Context cx)
-    {
-        return cx.scratchIndex;
-    }
-
-    public static void storeUint32Result(Context cx, long value)
-    {
-        if ((value >>> 32) != 0)
-            throw new IllegalArgumentException();
-        cx.scratchUint32 = value;
-    }
-
-    public static long lastUint32Result(Context cx)
-    {
-        long value = cx.scratchUint32;
-        if ((value >>> 32) != 0)
-            throw new IllegalStateException();
-        return value;
-    }
-
-    private static void storeScriptable(Context cx, Scriptable value)
-    {
-        // The previosly stored scratchScriptable should be consumed
-        if (cx.scratchScriptable != null)
-            throw new IllegalStateException();
-        cx.scratchScriptable = value;
-    }
-
-    public static Scriptable lastStoredScriptable(Context cx)
-    {
-        Scriptable result = cx.scratchScriptable;
-        cx.scratchScriptable = null;
-        return result;
-    }
-
-    static String makeUrlForGeneratedScript
-        (boolean isEval, String masterScriptUrl, int masterScriptLine)
-    {
-        if (isEval) {
-            return masterScriptUrl+'#'+masterScriptLine+"(eval)";
-        } else {
-            return masterScriptUrl+'#'+masterScriptLine+"(Function)";
-        }
-    }
-
-    static boolean isGeneratedScript(String sourceUrl) {
-        // ALERT: this may clash with a valid URL containing (eval) or
-        // (Function)
-        return sourceUrl.indexOf("(eval)") >= 0
-               || sourceUrl.indexOf("(Function)") >= 0;
-    }
-
-    private static RuntimeException errorWithClassName(String msg, Object val)
-    {
-        return Context.reportRuntimeError1(msg, val.getClass().getName());
-    }
-
-    public static final Object[] emptyArgs = new Object[0];
-    public static final String[] emptyStrings = new String[0];
-
-}