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diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java
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index 0000000000..8a16762709
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+++ b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java
@@ -0,0 +1,115 @@
+/*
+ * 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.classfile.attribute.preverification;
+
+import proguard.classfile.*;
+import proguard.classfile.attribute.CodeAttribute;
+import proguard.classfile.attribute.preverification.visitor.*;
+
+/**
+ * This StackMapFrame represents a "same locals 1 stack item frame" or a
+ * "same locals 1 stack item frame extended".
+ *
+ * @author Eric Lafortune
+ */
+public class SameOneFrame extends StackMapFrame
+{
+ public VerificationType stackItem;
+
+
+ /**
+ * Creates an uninitialized SameOneFrame.
+ */
+ public SameOneFrame()
+ {
+ }
+
+
+ /**
+ * Creates a SameOneFrame with the given tag.
+ */
+ public SameOneFrame(int tag)
+ {
+ u2offsetDelta = tag - SAME_ONE_FRAME;
+ }
+
+
+ /**
+ * Creates a SameOneFrame with the given stack verification type.
+ */
+ public SameOneFrame(VerificationType stackItem)
+ {
+ this.stackItem = stackItem;
+ }
+
+
+ /**
+ * Applies the given verification type visitor to the stack item.
+ */
+ public void stackItemAccept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VerificationTypeVisitor verificationTypeVisitor)
+ {
+ stackItem.accept(clazz, method, codeAttribute, offset, verificationTypeVisitor);
+ }
+
+
+ // Implementations for StackMapFrame.
+
+ public int getTag()
+ {
+ return u2offsetDelta < 64 ?
+ SAME_ONE_FRAME + u2offsetDelta :
+ SAME_ONE_FRAME_EXTENDED;
+ }
+
+
+ public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, StackMapFrameVisitor stackMapFrameVisitor)
+ {
+ stackMapFrameVisitor.visitSameOneFrame(clazz, method, codeAttribute, offset, this);
+ }
+
+
+ // Implementations for Object.
+
+ public boolean equals(Object object)
+ {
+ if (!super.equals(object))
+ {
+ return false;
+ }
+
+ SameOneFrame other = (SameOneFrame)object;
+
+ return this.u2offsetDelta == other.u2offsetDelta &&
+ this.stackItem.equals(other.stackItem);
+ }
+
+
+ public int hashCode()
+ {
+ return super.hashCode() ^ stackItem.hashCode();
+ }
+
+
+ public String toString()
+ {
+ return super.toString()+"Var: ..., Stack: ["+stackItem.toString()+"]";
+ }
+}