1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/editor/AttributeSorter.java b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/editor/AttributeSorter.java
new file mode 100644
index 0000000000..4da8dcd965
--- /dev/null
+++ b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/editor/AttributeSorter.java
@@ -0,0 +1,89 @@
+/*
+ * 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.editor;
+
+import proguard.classfile.*;
+import proguard.classfile.attribute.*;
+import proguard.classfile.attribute.visitor.AttributeVisitor;
+import proguard.classfile.util.SimplifiedVisitor;
+import proguard.classfile.visitor.*;
+
+import java.util.*;
+
+/**
+ * This ClassVisitor sorts the attributes of the classes that it visits.
+ * The sorting order is based on the types of the attributes.
+ *
+ * @author Eric Lafortune
+ */
+public class AttributeSorter
+extends      SimplifiedVisitor
+implements   ClassVisitor, MemberVisitor, AttributeVisitor, Comparator
+{
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        // Sort the attributes.
+        Arrays.sort(programClass.attributes, 0, programClass.u2attributesCount, this);
+
+        // Sort the attributes of the class members.
+        programClass.fieldsAccept(this);
+        programClass.methodsAccept(this);
+    }
+
+
+    // Implementations for MemberVisitor.
+
+    public void visitProgramMember(ProgramClass programClass, ProgramMember programMember)
+    {
+        // Sort the attributes.
+        Arrays.sort(programMember.attributes, 0, programMember.u2attributesCount, this);
+
+        // Sort the attributes of the attributes.
+        programMember.attributesAccept(programClass, this);
+    }
+
+
+    // Implementations for AttributeVisitor.
+
+    public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
+
+
+    public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
+    {
+        // Sort the attributes.
+        Arrays.sort(codeAttribute.attributes, 0, codeAttribute.u2attributesCount, this);
+    }
+
+
+    // Implementations for Comparator.
+
+    public int compare(Object object1, Object object2)
+    {
+        Attribute attribute1 = (Attribute)object1;
+        Attribute attribute2 = (Attribute)object2;
+
+        return attribute1.u2attributeNameIndex < attribute2.u2attributeNameIndex ? -1 :
+               attribute1.u2attributeNameIndex > attribute2.u2attributeNameIndex ?  1 :
+                                                                                    0;
+    }
+}