/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * * The contents of this file are subject to the Netscape 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/NPL/ * * 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 Netscape are * Copyright (C) 1997-1999 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * Norris Boyd * Igor Bukanov * Mike McCabe * * Alternatively, the contents of this file may be used under the * terms of the GNU Public License (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 NPL, indicate your decision by * deleting the provisions above and replace 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 NPL or the GPL. */package org.mozilla.javascript;/** * This class implements the Boolean native object. * See ECMA 15.6. * @author Norris Boyd */final class NativeBoolean extends IdScriptableObject{    static final long serialVersionUID = -3716996899943880933L;    private static final Object BOOLEAN_TAG = new Object();    static void init(Scriptable scope, boolean sealed)    {        NativeBoolean obj = new NativeBoolean(false);        obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);    }    private NativeBoolean(boolean b)    {        booleanValue = b;    }    public String getClassName()    {        return "Boolean";    }    public Object getDefaultValue(Class typeHint) {        // This is actually non-ECMA, but will be proposed        // as a change in round 2.        if (typeHint == ScriptRuntime.BooleanClass)            return ScriptRuntime.wrapBoolean(booleanValue);        return super.getDefaultValue(typeHint);    }    protected void initPrototypeId(int id)    {        String s;        int arity;        switch (id) {          case Id_constructor: arity=1; s="constructor"; break;          case Id_toString:    arity=0; s="toString";    break;          case Id_toSource:    arity=0; s="toSource";    break;          case Id_valueOf:     arity=0; s="valueOf";     break;          default: throw new IllegalArgumentException(String.valueOf(id));        }        initPrototypeMethod(BOOLEAN_TAG, id, s, arity);    }    public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,                             Scriptable thisObj, Object[] args)    {        if (!f.hasTag(BOOLEAN_TAG)) {            return super.execIdCall(f, cx, scope, thisObj, args);        }        int id = f.methodId();        if (id == Id_constructor) {            boolean b = ScriptRuntime.toBoolean(args, 0);            if (thisObj == null) {                // new Boolean(val) creates a new boolean object.                return new NativeBoolean(b);            }            // Boolean(val) converts val to a boolean.            return ScriptRuntime.wrapBoolean(b);        }        // The rest of Boolean.prototype methods require thisObj to be Boolean        if (!(thisObj instanceof NativeBoolean))            throw incompatibleCallError(f);        boolean value = ((NativeBoolean)thisObj).booleanValue;        switch (id) {          case Id_toString:            return value ? "true" : "false";          case Id_toSource:            return value ? "(new Boolean(true))" : "(new Boolean(false))";          case Id_valueOf:            return ScriptRuntime.wrapBoolean(value);        }        throw new IllegalArgumentException(String.valueOf(id));    }// #string_id_map#    protected int findPrototypeId(String s)    {        int id;// #generated# Last update: 2004-03-17 13:28:00 CET        L0: { id = 0; String X = null; int c;            int s_length = s.length();            if (s_length==7) { X="valueOf";id=Id_valueOf; }            else if (s_length==8) {                c=s.charAt(3);                if (c=='o') { X="toSource";id=Id_toSource; }                else if (c=='t') { X="toString";id=Id_toString; }            }            else if (s_length==11) { X="constructor";id=Id_constructor; }            if (X!=null && X!=s && !X.equals(s)) id = 0;        }// #/generated#        return id;    }    private static final int        Id_constructor          = 1,        Id_toString             = 2,        Id_toSource             = 3,        Id_valueOf              = 4,        MAX_PROTOTYPE_ID        = 4;// #/string_id_map#    private boolean booleanValue;}