1 files changed, 120 insertions, 0 deletions
diff --git a/src/proguard/obfuscate/MemberNameFilter.java b/src/proguard/obfuscate/MemberNameFilter.java
new file mode 100644
index 0000000..6d95270
--- /dev/null
+++ b/src/proguard/obfuscate/MemberNameFilter.java
@@ -0,0 +1,120 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2013 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.obfuscate;
+
+import proguard.classfile.*;
+import proguard.classfile.visitor.MemberVisitor;
+
+/**
+ * This <code>MemberVisitor</code> delegates its visits to another given
+ * <code>MemberVisitor</code>, but only when the visited member has a new name.
+ * Constructors are judged based on the class name.
+ *
+ * @see ClassObfuscator
+ * @see MemberObfuscator
+ *
+ * @author Eric Lafortune
+ */
+public class MemberNameFilter implements MemberVisitor
+{
+    private final MemberVisitor memberVisitor;
+
+
+    /**
+     * Creates a new MemberNameFilter.
+     * @param memberVisitor the <code>MemberVisitor</code> to which
+     *                      visits will be delegated.
+     */
+    public MemberNameFilter(MemberVisitor memberVisitor)
+    {
+        this.memberVisitor = memberVisitor;
+    }
+
+
+    // Implementations for MemberVisitor.
+
+    public void visitProgramField(ProgramClass programClass, ProgramField programField)
+    {
+        if (hasName(programField))
+        {
+            memberVisitor.visitProgramField(programClass, programField);
+        }
+    }
+
+
+    public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
+    {
+        if (hasName(programClass, programMethod))
+        {
+            memberVisitor.visitProgramMethod(programClass, programMethod);
+        }
+    }
+
+
+    public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField)
+    {
+        if (hasName(libraryField))
+        {
+            memberVisitor.visitLibraryField(libraryClass, libraryField);
+        }
+    }
+
+
+    public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)
+    {
+        if (hasName(libraryClass, libraryMethod))
+        {
+            memberVisitor.visitLibraryMethod(libraryClass, libraryMethod);
+        }
+    }
+
+
+    // Small utility methods.
+
+    /**
+     * Returns whether the given class has a new name.
+     */
+    private boolean hasName(Clazz clazz)
+    {
+        return ClassObfuscator.newClassName(clazz) != null;
+    }
+
+
+    /**
+     * Returns whether the given method has a new name.
+     */
+    private boolean hasName(Clazz clazz, Method method)
+    {
+        return
+            hasName(method) ||
+            (hasName(clazz) &&
+             method.getName(clazz).equals(ClassConstants.INTERNAL_METHOD_NAME_INIT));
+    }
+
+
+    /**
+     * Returns whether the given class member has a new name.
+     */
+    private boolean hasName(Member member)
+    {
+        return MemberObfuscator.newMemberName(member) != null;
+    }
+}