1 files changed, 97 insertions, 0 deletions
diff --git a/src/proguard/SeedPrinter.java b/src/proguard/SeedPrinter.java
new file mode 100644
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+++ b/src/proguard/SeedPrinter.java
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+/*
+ * 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;
+
+import proguard.classfile.ClassPool;
+import proguard.classfile.attribute.visitor.AllAttributeVisitor;
+import proguard.classfile.constant.visitor.AllConstantVisitor;
+import proguard.classfile.instruction.visitor.AllInstructionVisitor;
+import proguard.classfile.util.*;
+import proguard.classfile.visitor.*;
+import proguard.optimize.*;
+import proguard.util.*;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * This class prints out the seeds specified by keep options.
+ *
+ * @author Eric Lafortune
+ */
+public class SeedPrinter
+{
+    private final PrintStream ps;
+
+
+    /**
+     * Creates a new ConfigurationWriter for the given PrintStream.
+     */
+    public SeedPrinter(PrintStream ps) throws IOException
+    {
+        this.ps = ps;
+    }
+
+
+    /**
+     * Prints out the seeds for the classes in the given program class pool.
+     * @param configuration the configuration containing the keep options.
+     * @throws IOException if an IO error occurs while writing the configuration.
+     */
+    public void write(Configuration configuration,
+                      ClassPool     programClassPool,
+                      ClassPool     libraryClassPool) throws IOException
+    {
+        // Check if we have at least some keep commands.
+        if (configuration.keep == null)
+        {
+            throw new IOException("You have to specify '-keep' options for the shrinking step.");
+        }
+
+        // Clean up any old visitor info.
+        programClassPool.classesAccept(new ClassCleaner());
+        libraryClassPool.classesAccept(new ClassCleaner());
+
+        // Create a visitor for printing out the seeds. We're  printing out
+        // the program elements that are preserved against shrinking,
+        // optimization, or obfuscation.
+        KeepMarker keepMarker = new KeepMarker();
+        ClassPoolVisitor classPoolvisitor =
+            ClassSpecificationVisitorFactory.createClassPoolVisitor(configuration.keep,
+                                                                    keepMarker,
+                                                                    keepMarker,
+                                                                    true,
+                                                                    true,
+                                                                    true);
+        // Mark the seeds.
+        programClassPool.accept(classPoolvisitor);
+        libraryClassPool.accept(classPoolvisitor);
+
+        // Print out the seeds.
+        SimpleClassPrinter printer = new SimpleClassPrinter(false, ps);
+        programClassPool.classesAcceptAlphabetically(new MultiClassVisitor(
+            new ClassVisitor[]
+            {
+                new KeptClassFilter(printer),
+                new AllMemberVisitor(new KeptMemberFilter(printer))
+            }));
+    }
+}
+\ No newline at end of file