1 /*
   2  * Copyright (c) 2001, 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 Oracle, 500 Oracle Parkway, Redwood Shores,
  20  * CA 94065 USA or visit www.oracle.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.debugger.cdbg;
  26 
  27 import sun.jvm.hotspot.debugger.*;
  28 
  29 /** A BlockSym models a lexical scope in a block-structured
  30     language. It is (currently) the bottommost scope type. */
  31 
  32 public interface BlockSym extends Sym {
  33   /** Get the lexically enclosing block, or null if none */
  34   public BlockSym getParent();
  35 
  36   /** Length in bytes of the machine code in this block */
  37   public long getLength();
  38 
  39   /** Address of the first machine instruction in this block */
  40   public Address getAddress();
  41 
  42   /** Name of this block, or null if none */
  43   public String getName();
  44 
  45   /** Number of local variable symbols associated with this block */
  46   public int getNumLocals();
  47 
  48   /** Return <i>i</i>th local (0..getNumLocals() - 1) */
  49   public LocalSym getLocal(int i);
  50 }