jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javap/BasicWriter.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/BasicWriter.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/BasicWriter.java

Tue, 19 May 2009 11:50:54 -0700

author: jjg
date: Tue, 19 May 2009 11:50:54 -0700
changeset 283: cd0630109de5
parent 54: eaf608c64fec
child 348: 743f17b55b44
permissions: -rw-r--r--

6824493: experimental support for additional info for instructions
Reviewed-by: mcimadamore

 /*
  * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package com.sun.tools.javap;
 import java.io.PrintWriter;
 import com.sun.tools.classfile.AttributeException;
 import com.sun.tools.classfile.ConstantPoolException;
 import com.sun.tools.classfile.DescriptorException;
 /*
  *  A writer similar to a PrintWriter but which does not hide exceptions.
  *  The standard print calls are line-buffered; report calls write messages directly.
  *
  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
  *  you write code that depends on this, you do so at your own risk.
  *  This code and its internal interfaces are subject to change or
  *  deletion without notice.</b>
  */
 public class BasicWriter {
     protected BasicWriter(Context context) {
         lineWriter = LineWriter.instance(context);
         out = context.get(PrintWriter.class);
         messages = context.get(Messages.class);
         if (messages == null)
             throw new AssertionError();
     }
     protected void print(String s) {
         lineWriter.print(s);
     }
     protected void print(Object o) {
         lineWriter.print(o == null ? null : o.toString());
     }
     protected void println() {
         lineWriter.println();
     }
     protected void println(String s) {
         lineWriter.print(s);
         lineWriter.println();
     }
     protected void println(Object o) {
         lineWriter.print(o == null ? null : o.toString());
         lineWriter.println();
     }
     protected String report(AttributeException e) {
         out.println("Error: " + e.getMessage()); // i18n?
         return "???";
     }
     protected String report(ConstantPoolException e) {
         out.println("Error: " + e.getMessage()); // i18n?
         return "???";
     }
     protected String report(DescriptorException e) {
         out.println("Error: " + e.getMessage()); // i18n?
         return "???";
     }
     protected String report(String msg) {
         out.println("Error: " + msg); // i18n?
         return "???";
     }
     protected String space(int w) {
         if (w < spaces.length && spaces[w] != null)
             return spaces[w];
         StringBuilder sb = new StringBuilder();
         for (int i = 0; i < w; i++)
             sb.append(" ");
         String s = sb.toString();
         if (w < spaces.length)
             spaces[w] = s;
         return s;
     }
     private String[] spaces = new String[80];
     private LineWriter lineWriter;
     private PrintWriter out;
     protected Messages messages;
     private static class LineWriter {
         static LineWriter instance(Context context) {
             LineWriter instance = context.get(LineWriter.class);
             if (instance == null)
                 instance = new LineWriter(context);
             return instance;
         }
         protected LineWriter(Context context) {
             context.put(LineWriter.class, this);
             out = context.get(PrintWriter.class);
             buffer = new StringBuilder();
         }
         protected void print(String s) {
             if (s == null)
                 s = "null";
             for (int i = 0; i < s.length(); i++) {
                 char c = s.charAt(i);
                 if (c == '\n') {
                     println();
                 } else {
                     buffer.append(c);
                 }
             }
         }
         protected void println() {
             out.println(buffer);
             buffer.setLength(0);
         }
         private PrintWriter out;
         private StringBuilder buffer;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javap/BasicWriter.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/BasicWriter.java