1 /*
   2  * Copyright (c) 2011, 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, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package jdk.internal.jvmci.meta;
  24 
  25 public class LineNumberTableImpl implements LineNumberTable {
  26 
  27     private final int[] lineNumbers;
  28     private final int[] bci;
  29 
  30     public LineNumberTableImpl(int[] lineNumbers, int[] bci) {
  31         this.lineNumbers = lineNumbers;
  32         this.bci = bci;
  33     }
  34 
  35     @Override
  36     public int[] getLineNumberEntries() {
  37         return lineNumbers;
  38     }
  39 
  40     @Override
  41     public int[] getBciEntries() {
  42         return bci;
  43     }
  44 
  45     @Override
  46     public int getLineNumber(@SuppressWarnings("hiding") int bci) {
  47         for (int i = 0; i < this.bci.length - 1; i++) {
  48             if (this.bci[i] <= bci && bci < this.bci[i + 1]) {
  49                 return lineNumbers[i];
  50             }
  51         }
  52         return lineNumbers[lineNumbers.length - 1];
  53     }
  54 }