ProGuard 4.4

1 files changed, 77 insertions, 0 deletions

diff --git a/src/proguard/classfile/util/ClassSubHierarchyInitializer.java b/src/proguard/classfile/util/ClassSubHierarchyInitializer.java
new file mode 100644
index 0000000..30fd526
--- /dev/null
+++ b/src/proguard/classfile/util/ClassSubHierarchyInitializer.java
@@ -0,0 +1,77 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.classfile.util;
+
+import proguard.classfile.*;
+import proguard.classfile.visitor.ClassVisitor;
+
+/**
+ * This ClassVisitor adds all classes that it visits to the list of subclasses
+ * of their superclass. These subclass lists make it more convenient to travel
+ *
+ * @author Eric Lafortune
+ */
+public class ClassSubHierarchyInitializer
+implements   ClassVisitor
+{
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        // Add this class to the subclasses of its superclass.
+        addSubclass(programClass, programClass.getSuperClass());
+
+        // Add this class to the subclasses of its interfaces.
+        for (int index = 0; index < programClass.u2interfacesCount; index++)
+        {
+            addSubclass(programClass, programClass.getInterface(index));
+        }
+    }
+
+
+    public void visitLibraryClass(LibraryClass libraryClass)
+    {
+        // Add this class to the subclasses of its superclass,
+        addSubclass(libraryClass, libraryClass.superClass);
+
+        // Add this class to the subclasses of its interfaces.
+        Clazz[] interfaceClasses = libraryClass.interfaceClasses;
+        if (interfaceClasses != null)
+        {
+            for (int index = 0; index < interfaceClasses.length; index++)
+            {
+                // Add this class to the subclasses of the interface class.
+                addSubclass(libraryClass, interfaceClasses[index]);
+            }
+        }
+    }
+
+
+    // Small utility methods.
+
+    private void addSubclass(Clazz subclass, Clazz clazz)
+    {
+        if (clazz != null)
+        {
+            clazz.addSubClass(subclass);
+        }
+    }
+}