1 files changed, 147 insertions, 0 deletions
diff --git a/src/proguard/classfile/ClassPool.java b/src/proguard/classfile/ClassPool.java
new file mode 100644
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+++ b/src/proguard/classfile/ClassPool.java
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+/*
+ * 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;
+
+import proguard.classfile.util.ClassUtil;
+import proguard.classfile.visitor.*;
+
+import java.util.*;
+
+/**
+ * This is a set of representations of classes. They      can be enumerated or
+ * retrieved by name. They can also be accessed by means of class visitors.
+ *
+ * @author Eric Lafortune
+ */
+public class ClassPool
+{
+    private final Map classes = new HashMap();
+
+
+    /**
+     * Clears the class pool.
+     */
+    public void clear()
+    {
+        classes.clear();
+    }
+
+
+    /**
+     * Adds the given Clazz to the class pool.
+     */
+    public void addClass(Clazz clazz)
+    {
+        classes.put(clazz.getName(), clazz);
+    }
+
+
+    /**
+     * Removes the given Clazz from the class pool.
+     */
+    public void removeClass(Clazz clazz)
+    {
+        classes.remove(clazz.getName());
+    }
+
+
+    /**
+     * Returns a Clazz from the class pool based on its name. Returns
+     * <code>null</code> if the class with the given name is not in the class
+     * pool. Returns the base class if the class name is an array type.
+     */
+    public Clazz getClass(String className)
+    {
+        return (Clazz)classes.get(ClassUtil.internalClassNameFromClassType(className));
+    }
+
+
+    /**
+     * Returns an Iterator of all class names in the class pool.
+     */
+    public Iterator classNames()
+    {
+        return classes.keySet().iterator();
+    }
+
+
+    /**
+     * Returns the number of classes in the class pool.
+     */
+    public int size()
+    {
+        return classes.size();
+    }
+
+
+    /**
+     * Applies the given ClassPoolVisitor to the class pool.
+     */
+    public void accept(ClassPoolVisitor classPoolVisitor)
+    {
+        classPoolVisitor.visitClassPool(this);
+    }
+
+
+    /**
+     * Applies the given ClassVisitor to all classes in the class pool,
+     * in random order.
+     */
+    public void classesAccept(ClassVisitor classVisitor)
+    {
+        Iterator iterator = classes.values().iterator();
+        while (iterator.hasNext())
+        {
+            Clazz clazz = (Clazz)iterator.next();
+            clazz.accept(classVisitor);
+        }
+    }
+
+
+    /**
+     * Applies the given ClassVisitor to all classes in the class pool,
+     * in sorted order.
+     */
+    public void classesAcceptAlphabetically(ClassVisitor classVisitor)
+    {
+        TreeMap sortedClasses = new TreeMap(classes);
+        Iterator iterator = sortedClasses.values().iterator();
+        while (iterator.hasNext())
+        {
+            Clazz clazz = (Clazz)iterator.next();
+            clazz.accept(classVisitor);
+        }
+    }
+
+
+    /**
+     * Applies the given ClassVisitor to the class with the given name,
+     * if it is present in the class pool.
+     */
+    public void classAccept(String className, ClassVisitor classVisitor)
+    {
+        Clazz clazz = getClass(className);
+        if (clazz != null)
+        {
+            clazz.accept(classVisitor);
+        }
+    }
+}