/* -*- 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 * * 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;import java.io.CharArrayWriter;import java.io.PrintStream;import java.io.PrintWriter;/** * The class of exceptions thrown by the JavaScript engine. */public abstract class RhinoException extends RuntimeException{    RhinoException()    {        Interpreter.captureInterpreterStackInfo(this);    }    RhinoException(String details)    {        super(details);        Interpreter.captureInterpreterStackInfo(this);    }    public final String getMessage()    {        String details = details();        if (sourceName == null || lineNumber <= 0) {            return details;        }        StringBuffer buf = new StringBuffer(details);        buf.append(" (");        if (sourceName != null) {            buf.append(sourceName);        }        if (lineNumber > 0) {            buf.append('#');            buf.append(lineNumber);        }        buf.append(')');        return buf.toString();    }    public String details()    {        return super.getMessage();    }    /**     * Get the uri of the script source containing the error, or null     * if that information is not available.     */    public final String sourceName()    {        return sourceName;    }    /**     * Initialize the uri of the script source containing the error.     *     * @param sourceName the uri of the script source reponsible for the error.     *                   It should not be <tt>null</tt>.     *     * @throws IllegalStateException if the method is called more then once.     */    public final void initSourceName(String sourceName)    {        if (sourceName == null) throw new IllegalArgumentException();        if (this.sourceName != null) throw new IllegalStateException();        this.sourceName = sourceName;    }    /**     * Returns the line number of the statement causing the error,     * or zero if not available.     */    public final int lineNumber()    {        return lineNumber;    }    /**     * Initialize the line number of the script statement causing the error.     *     * @param lineNumber the line number in the script source.     *                   It should be positive number.     *     * @throws IllegalStateException if the method is called more then once.     */    public final void initLineNumber(int lineNumber)    {        if (lineNumber <= 0) throw new IllegalArgumentException(String.valueOf(lineNumber));        if (this.lineNumber > 0) throw new IllegalStateException();        this.lineNumber = lineNumber;    }    /**     * The column number of the location of the error, or zero if unknown.     */    public final int columnNumber()    {        return columnNumber;    }    /**     * Initialize the column number of the script statement causing the error.     *     * @param columnNumber the column number in the script source.     *                     It should be positive number.     *     * @throws IllegalStateException if the method is called more then once.     */    public final void initColumnNumber(int columnNumber)    {        if (columnNumber <= 0) throw new IllegalArgumentException(String.valueOf(columnNumber));        if (this.columnNumber > 0) throw new IllegalStateException();        this.columnNumber = columnNumber;    }    /**     * The source text of the line causing the error, or null if unknown.     */    public final String lineSource()    {        return lineSource;    }    /**     * Initialize the text of the source line containing the error.     *     * @param lineSource the text of the source line reponsible for the error.     *                   It should not be <tt>null</tt>.     *     * @throws IllegalStateException if the method is called more then once.     */    public final void initLineSource(String lineSource)    {        if (lineSource == null) throw new IllegalArgumentException();        if (this.lineSource != null) throw new IllegalStateException();        this.lineSource = lineSource;    }    final void recordErrorOrigin(String sourceName, int lineNumber,                                 String lineSource, int columnNumber)    {        // XXX: for compatibility allow for now -1 to mean 0        if (lineNumber == -1) {            lineNumber = 0;        }        if (sourceName != null) {            initSourceName(sourceName);        }        if (lineNumber != 0) {            initLineNumber(lineNumber);        }        if (lineSource != null) {            initLineSource(lineSource);        }        if (columnNumber != 0) {            initColumnNumber(columnNumber);        }    }    private String generateStackTrace()    {        // Get stable reference to work properly with concurrent access        CharArrayWriter writer = new CharArrayWriter();        super.printStackTrace(new PrintWriter(writer));        String origStackTrace = writer.toString();        return Interpreter.getPatchedStack(this, origStackTrace);    }    public void printStackTrace(PrintWriter s)    {        if (interpreterStackInfo == null) {            super.printStackTrace(s);        } else {            s.print(generateStackTrace());        }    }    public void printStackTrace(PrintStream s)    {        if (interpreterStackInfo == null) {            super.printStackTrace(s);        } else {            s.print(generateStackTrace());        }    }    private String sourceName;    private int lineNumber;    private String lineSource;    private int columnNumber;    Object interpreterStackInfo;    int[] interpreterLineData;}