1 /*
   2  * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 package com.sun.hotspot.tools.compiler;
  25 
  26 import java.io.PrintStream;
  27 
  28 /**
  29  * An instance of this class represents an uncommon trap associated with a
  30  * given bytecode instruction. An uncommon trap is described in terms of its
  31  * reason and action to be taken. An instance of this class is always relative
  32  * to a specific method and only contains the relevant bytecode instruction
  33  * index.
  34  */
  35 class UncommonTrap {
  36     
  37     private int bci;
  38     private String reason;
  39     private String action;
  40     private String bytecode;
  41 
  42     public UncommonTrap(int b, String r, String a, String bc) {
  43         bci = b;
  44         reason = r;
  45         action = a;
  46         bytecode = bc;
  47     }
  48 
  49     public int getBCI() {
  50         return bci;
  51     }
  52 
  53     public String getReason() {
  54         return reason;
  55     }
  56 
  57     public String getAction() {
  58         return action;
  59     }
  60 
  61     public String getBytecode() {
  62         return bytecode;
  63     }
  64 
  65     void emit(PrintStream stream, int indent) {
  66         for (int i = 0; i < indent; i++) {
  67             stream.print(' ');
  68         }
  69     }
  70 
  71     public void print(PrintStream stream, int indent) {
  72         emit(stream, indent);
  73         stream.println(this);
  74     }
  75 
  76     public String toString() {
  77         return "@ " + bci  + " " + getBytecode() + " uncommon trap " + getReason() + " " + getAction();
  78     }
  79 }