1 files changed, 88 insertions, 0 deletions
diff --git a/src/proguard/optimize/peephole/VerticalClassMerger.java b/src/proguard/optimize/peephole/VerticalClassMerger.java
new file mode 100644
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+++ b/src/proguard/optimize/peephole/VerticalClassMerger.java
@@ -0,0 +1,88 @@
+/*
+ * 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.optimize.peephole;
+
+import proguard.classfile.ProgramClass;
+import proguard.classfile.constant.visitor.ConstantVisitor;
+import proguard.classfile.util.SimplifiedVisitor;
+import proguard.classfile.visitor.ClassVisitor;
+
+/**
+ * This ClassVisitor inlines the direct subclasses into the program classes
+ * that it visits, whenever possible.
+ *
+ * @see ClassMerger
+ * @author Eric Lafortune
+ */
+public class VerticalClassMerger
+extends      SimplifiedVisitor
+implements   ClassVisitor
+{
+    private final boolean      allowAccessModification;
+    private final boolean      mergeInterfacesAggressively;
+    private final ClassVisitor extraClassVisitor;
+
+
+    /**
+     * Creates a new VerticalClassMerger.
+     * @param allowAccessModification     specifies whether the access modifiers
+     *                                    of classes can be changed in order to
+     *                                    merge them.
+     * @param mergeInterfacesAggressively specifies whether interfaces may
+     *                                    be merged aggressively.
+     */
+    public VerticalClassMerger(boolean allowAccessModification,
+                               boolean mergeInterfacesAggressively)
+    {
+        this(allowAccessModification, mergeInterfacesAggressively, null);
+    }
+
+
+    /**
+     * Creates a new VerticalClassMerger.
+     * @param allowAccessModification     specifies whether the access modifiers
+     *                                    of classes can be changed in order to
+     *                                    merge them.
+     * @param mergeInterfacesAggressively specifies whether interfaces may
+     *                                    be merged aggressively.
+     * @param extraClassVisitor           an optional extra visitor for all
+     *                                    merged classes.
+     */
+    public VerticalClassMerger(boolean      allowAccessModification,
+                               boolean      mergeInterfacesAggressively,
+                               ClassVisitor extraClassVisitor)
+    {
+        this.allowAccessModification     = allowAccessModification;
+        this.mergeInterfacesAggressively = mergeInterfacesAggressively;
+        this.extraClassVisitor           = extraClassVisitor;
+    }
+
+
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        programClass.subclassesAccept(new ClassMerger(programClass,
+                                                      allowAccessModification,
+                                                      mergeInterfacesAggressively,
+                                                      extraClassVisitor));
+    }
+}
+\ No newline at end of file