1 files changed, 275 insertions, 0 deletions
diff --git a/src/proguard/classfile/visitor/ClassCleaner.java b/src/proguard/classfile/visitor/ClassCleaner.java
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+++ b/src/proguard/classfile/visitor/ClassCleaner.java
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+/*
+ * 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.classfile.visitor;
+
+import proguard.classfile.*;
+import proguard.classfile.attribute.*;
+import proguard.classfile.attribute.annotation.*;
+import proguard.classfile.attribute.annotation.visitor.*;
+import proguard.classfile.attribute.preverification.*;
+import proguard.classfile.attribute.preverification.visitor.*;
+import proguard.classfile.attribute.visitor.*;
+import proguard.classfile.constant.Constant;
+import proguard.classfile.constant.visitor.ConstantVisitor;
+import proguard.classfile.util.SimplifiedVisitor;
+
+/**
+ * This <code>ClassVisitor</code> removes all visitor information of the
+ * classes it visits.
+ *
+ * @author Eric Lafortune
+ */
+public class ClassCleaner
+extends      SimplifiedVisitor
+implements   ClassVisitor,
+             ConstantVisitor,
+             MemberVisitor,
+             AttributeVisitor,
+             ExceptionInfoVisitor,
+             InnerClassesInfoVisitor,
+             StackMapFrameVisitor,
+             VerificationTypeVisitor,
+             AnnotationVisitor,
+             ElementValueVisitor
+{
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        clean(programClass);
+
+        programClass.constantPoolEntriesAccept(this);
+
+        programClass.fieldsAccept(this);
+        programClass.methodsAccept(this);
+
+        programClass.attributesAccept(this);
+    }
+
+
+    public void visitLibraryClass(LibraryClass libraryClass)
+    {
+        clean(libraryClass);
+
+        libraryClass.fieldsAccept(this);
+        libraryClass.methodsAccept(this);
+    }
+
+
+    // Implementations for ConstantVisitor.
+
+    public void visitAnyConstant(Clazz clazz, Constant constant)
+    {
+        clean(constant);
+    }
+
+
+    // Implementations for MemberVisitor.
+
+    public void visitProgramMember(ProgramClass programClass, ProgramMember programMember)
+    {
+        clean(programMember);
+
+        programMember.attributesAccept(programClass, this);
+    }
+
+
+    public void visitLibraryMember(LibraryClass libraryClass, LibraryMember libraryMember)
+    {
+        clean(libraryMember);
+    }
+
+
+    // Implementations for AttributeVisitor.
+
+    public void visitAnyAttribute(Clazz clazz, Attribute attribute)
+    {
+        clean(attribute);
+    }
+
+
+    public void visitInnerClassesAttribute(Clazz clazz, InnerClassesAttribute innerClassesAttribute)
+    {
+        clean(innerClassesAttribute);
+
+        innerClassesAttribute.innerClassEntriesAccept(clazz, this);
+    }
+
+
+    public void visitExceptionsAttribute(Clazz clazz, Method method, ExceptionsAttribute exceptionsAttribute)
+    {
+        clean(exceptionsAttribute);
+
+        exceptionsAttribute.exceptionEntriesAccept((ProgramClass)clazz, this);
+    }
+
+
+    public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
+    {
+        clean(codeAttribute);
+
+        codeAttribute.exceptionsAccept(clazz, method, this);
+        codeAttribute.attributesAccept(clazz, method, this);
+    }
+
+
+    public void visitStackMapAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapAttribute stackMapAttribute)
+    {
+        clean(stackMapAttribute);
+
+        stackMapAttribute.stackMapFramesAccept(clazz, method, codeAttribute, this);
+    }
+
+
+    public void visitStackMapTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapTableAttribute stackMapTableAttribute)
+    {
+        clean(stackMapTableAttribute);
+
+        stackMapTableAttribute.stackMapFramesAccept(clazz, method, codeAttribute, this);
+    }
+
+
+    public void visitAnyAnnotationsAttribute(Clazz clazz, AnnotationsAttribute annotationsAttribute)
+    {
+        clean(annotationsAttribute);
+
+        annotationsAttribute.annotationsAccept(clazz, this);
+    }
+
+
+    public void visitAnyParameterAnnotationsAttribute(Clazz clazz, Method method, ParameterAnnotationsAttribute parameterAnnotationsAttribute)
+    {
+        clean(parameterAnnotationsAttribute);
+
+        parameterAnnotationsAttribute.annotationsAccept(clazz, method, this);
+    }
+
+
+    public void visitAnnotationDefaultAttribute(Clazz clazz, Method method, AnnotationDefaultAttribute annotationDefaultAttribute)
+    {
+        clean(annotationDefaultAttribute);
+
+        annotationDefaultAttribute.defaultValueAccept(clazz, this);
+    }
+
+
+    // Implementations for InnerClassesInfoVisitor.
+
+    public void visitInnerClassesInfo(Clazz clazz, InnerClassesInfo innerClassesInfo)
+    {
+        clean(innerClassesInfo);
+    }
+
+
+    // Implementations for ExceptionInfoVisitor.
+
+    public void visitExceptionInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo)
+    {
+        clean(exceptionInfo);
+    }
+
+
+    // Implementations for StackMapFrameVisitor.
+
+    public void visitSameZeroFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SameZeroFrame sameZeroFrame)
+    {
+        clean(sameZeroFrame);
+    }
+
+
+    public void visitSameOneFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SameOneFrame sameOneFrame)
+    {
+        clean(sameOneFrame);
+
+        sameOneFrame.stackItemAccept(clazz, method, codeAttribute, offset, this);
+    }
+
+
+    public void visitLessZeroFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, LessZeroFrame lessZeroFrame)
+    {
+        clean(lessZeroFrame);
+    }
+
+
+    public void visitMoreZeroFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, MoreZeroFrame moreZeroFrame)
+    {
+        clean(moreZeroFrame);
+
+        moreZeroFrame.additionalVariablesAccept(clazz, method, codeAttribute, offset, this);
+    }
+
+
+    public void visitFullFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, FullFrame fullFrame)
+    {
+        clean(fullFrame);
+
+        fullFrame.variablesAccept(clazz, method, codeAttribute, offset, this);
+        fullFrame.stackAccept(clazz, method, codeAttribute, offset, this);
+    }
+
+
+    // Implementations for VerificationTypeVisitor.
+
+    public void visitAnyVerificationType(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VerificationType verificationType)
+    {
+        clean(verificationType);
+    }
+
+
+    // Implementations for AnnotationVisitor.
+
+    public void visitAnnotation(Clazz clazz, Annotation annotation)
+    {
+        clean(annotation);
+
+        annotation.elementValuesAccept(clazz, this);
+    }
+
+
+    // Implementations for ElementValueVisitor.
+
+    public void visitAnyElementValue(Clazz clazz, Annotation annotation, ElementValue elementValue)
+    {
+        clean(elementValue);
+    }
+
+
+    public void visitAnnotationElementValue(Clazz clazz, Annotation annotation, AnnotationElementValue annotationElementValue)
+    {
+        clean(annotationElementValue);
+
+        annotationElementValue.annotationAccept(clazz, this);
+    }
+
+
+    public void visitArrayElementValue(Clazz clazz, Annotation annotation, ArrayElementValue arrayElementValue)
+    {
+        clean(arrayElementValue);
+    }
+
+
+    // Small utility methods.
+
+    private void clean(VisitorAccepter visitorAccepter)
+    {
+        visitorAccepter.setVisitorInfo(null);
+    }
+}