001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 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     */
020    package org.sonar.java.bytecode.asm;
021    
022    import org.objectweb.asm.Type;
023    
024    public 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    }