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.asm;
021
022import org.objectweb.asm.Type;
023
024public final class AsmType {
025
026  private AsmType() {
027    // only static methods
028  }
029
030  public static boolean isArray(Type type) {
031    return type.getSort() == Type.ARRAY;
032  }
033
034  public static boolean isObject(Type type) {
035    return type.getSort() == Type.OBJECT;
036  }
037
038  public static boolean isArrayOfObject(Type type) {
039    return isArray(type) && type.getElementType().getSort() == Type.OBJECT;
040  }
041
042  public static boolean containsObject(Type type) {
043    return isObject(type) || isArrayOfObject(type);
044  }
045
046  public static boolean isVoid(Type type) {
047    return type == Type.VOID_TYPE;
048  }
049
050  public static String getObjectInternalName(Type type) {
051    if (isObject(type)) {
052      return type.getInternalName();
053    } else if (isArrayOfObject(type)) {
054      return type.getElementType().getInternalName();
055    } else {
056      throw new IllegalStateException("This method should not be called on a descriptor whitout Object reference : " 
057          + type.getDescriptor());
058    }
059  }
060
061}