001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020package org.sonar.java.bytecode;
021
022import org.sonar.java.bytecode.asm.AsmClass;
023import org.sonar.java.bytecode.asm.AsmMethod;
024
025public class VirtualMethodsLinker {
026
027  public void process(AsmMethod method) {
028    if ( !method.isBodyLoaded() && method.isUsed()) {
029      AsmMethod implementation = findImplementation(method.getParent(), method.getKey());
030      if (implementation != null) {
031        implementation.setUsed(true);
032        method.linkTo(implementation);
033      }
034    }
035  }
036
037  private AsmMethod findImplementation(AsmClass asmClass, String methodKey) {
038    AsmMethod method = asmClass.getMethod(methodKey);
039    if (method != null && method.isBodyLoaded()) {
040      return method;
041    }
042    if (asmClass.getSuperClass() != null) {
043      return findImplementation(asmClass.getSuperClass(), methodKey);
044    }
045    return null;
046  }
047}