/* -*- 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): * Igor Bukanov * Roger Lawrence * * 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;/** * * The class of error objects * *  ECMA 15.11 */final class NativeError extends IdScriptableObject{    static final long serialVersionUID = -5338413581437645187L;    private static final Object ERROR_TAG = new Object();    static void init(Scriptable scope, boolean sealed)    {        NativeError obj = new NativeError();        ScriptableObject.putProperty(obj, "name", "Error");        ScriptableObject.putProperty(obj, "message", "");        ScriptableObject.putProperty(obj, "fileName", "");        ScriptableObject.putProperty(obj, "lineNumber", new Integer(0));        obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);    }    static NativeError make(Context cx, Scriptable scope,                            IdFunctionObject ctorObj, Object[] args)    {        Scriptable proto = (Scriptable)(ctorObj.get("prototype", ctorObj));        NativeError obj = new NativeError();        obj.setPrototype(proto);        obj.setParentScope(scope);        if (args.length >= 1) {            ScriptableObject.putProperty(obj, "message",                                         ScriptRuntime.toString(args[0]));            if (args.length >= 2) {                ScriptableObject.putProperty(obj, "fileName", args[1]);                if (args.length >= 3) {                    int line = ScriptRuntime.toInt32(args[2]);                    ScriptableObject.putProperty(obj, "lineNumber",                                                 new Integer(line));                }            }        }        return obj;    }    public String getClassName()    {        return "Error";    }    public String toString()    {        return js_toString(this);    }    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;          default: throw new IllegalArgumentException(String.valueOf(id));        }        initPrototypeMethod(ERROR_TAG, id, s, arity);    }    public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,                             Scriptable thisObj, Object[] args)    {        if (!f.hasTag(ERROR_TAG)) {            return super.execIdCall(f, cx, scope, thisObj, args);        }        int id = f.methodId();        switch (id) {          case Id_constructor:            return make(cx, scope, f, args);          case Id_toString:            return js_toString(thisObj);          case Id_toSource:            return js_toSource(cx, scope, thisObj);        }        throw new IllegalArgumentException(String.valueOf(id));    }    private static String js_toString(Scriptable thisObj)    {        return getString(thisObj, "name")+": "+getString(thisObj, "message");    }    private static String js_toSource(Context cx, Scriptable scope,                                      Scriptable thisObj)    {        // Emulation of SpiderMonkey behavior        Object name = ScriptableObject.getProperty(thisObj, "name");        Object message = ScriptableObject.getProperty(thisObj, "message");        Object fileName = ScriptableObject.getProperty(thisObj, "fileName");        Object lineNumber = ScriptableObject.getProperty(thisObj, "lineNumber");        StringBuffer sb = new StringBuffer();        sb.append("(new ");        if (name == NOT_FOUND) {            name = Undefined.instance;        }        sb.append(ScriptRuntime.toString(name));        sb.append("(");        if (message != NOT_FOUND            || fileName != NOT_FOUND            || lineNumber != NOT_FOUND)        {            if (message == NOT_FOUND) {                message = "";            }            sb.append(ScriptRuntime.uneval(cx, scope, message));            if (fileName != NOT_FOUND || lineNumber != NOT_FOUND) {                sb.append(", ");                if (fileName == NOT_FOUND) {                    fileName = "";                }                sb.append(ScriptRuntime.uneval(cx, scope, fileName));                if (lineNumber != NOT_FOUND) {                    int line = ScriptRuntime.toInt32(lineNumber);                    if (line != 0) {                        sb.append(", ");                        sb.append(ScriptRuntime.toString(line));                    }                }            }        }        sb.append("))");        return sb.toString();    }    private static String getString(Scriptable obj, String id)    {        Object value = ScriptableObject.getProperty(obj, id);        if (value == NOT_FOUND) return "";        return ScriptRuntime.toString(value);    }    protected int findPrototypeId(String s)    {        int id;// #string_id_map#// #generated# Last update: 2004-03-17 13:35:15 CET        L0: { id = 0; String X = null; int c;            int s_length = s.length();            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,        MAX_PROTOTYPE_ID  = 3;// #/string_id_map#}