1 files changed, 69 insertions, 0 deletions
diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/KeptClassFilter.java b/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/KeptClassFilter.java
new file mode 100644
index 0000000000..e1c7f08903
--- /dev/null
+++ b/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/KeptClassFilter.java
@@ -0,0 +1,69 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare
+ *
+ * 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.optimize;
+
+import proguard.classfile.*;
+import proguard.classfile.visitor.ClassVisitor;
+
+/**
+ * This ClassVisitor delegates all its method calls to another ClassVisitor,
+ * but only for Clazz objects that are marked as kept.
+ *
+ * @see KeepMarker
+ *
+ * @author Eric Lafortune
+ */
+public class KeptClassFilter
+implements   ClassVisitor
+{
+    private final ClassVisitor classVisitor;
+
+
+    /**
+     * Creates a new KeptClassFilter.
+     * @param classVisitor the class visitor to which the visiting will be
+     *                     delegated.
+     */
+    public KeptClassFilter(ClassVisitor classVisitor)
+    {
+        this.classVisitor = classVisitor;
+    }
+
+
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        if (KeepMarker.isKept(programClass))
+        {
+            classVisitor.visitProgramClass(programClass);
+        }
+    }
+
+
+    public void visitLibraryClass(LibraryClass libraryClass)
+    {
+        if (KeepMarker.isKept(libraryClass))
+        {
+            classVisitor.visitLibraryClass(libraryClass);
+        }
+    }
+}
+\ No newline at end of file