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Diffstat (limited to 'src/proguard/classfile/editor/InterfaceDeleter.java')
| -rw-r--r-- | src/proguard/classfile/editor/InterfaceDeleter.java | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/src/proguard/classfile/editor/InterfaceDeleter.java b/src/proguard/classfile/editor/InterfaceDeleter.java deleted file mode 100644 index 6fd22b6..0000000 --- a/src/proguard/classfile/editor/InterfaceDeleter.java +++ /dev/null @@ -1,190 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 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.editor; - -import proguard.classfile.*; -import proguard.classfile.attribute.*; -import proguard.classfile.attribute.visitor.AttributeVisitor; -import proguard.classfile.constant.Utf8Constant; -import proguard.classfile.util.*; -import proguard.classfile.visitor.ClassVisitor; - -import java.util.Arrays; - -/** - * This ClassVisitor removes specified interfaces from the classes and class - * signatures that it visits. - * - * @author Eric Lafortune - */ -public class InterfaceDeleter -extends SimplifiedVisitor -implements ClassVisitor, - AttributeVisitor -{ - private static final boolean DEBUG = false; - - - private final boolean[] delete; - - - /** - * Creates a new InterfaceDeleter to remove the specified interfaces. - * @param delete an array that corresponds to the interfaces of a class - * and that specifies the ones to be removed. - */ - public InterfaceDeleter(boolean[] delete) - { - this.delete = delete; - } - - - // Implementations for ClassVisitor. - - public void visitProgramClass(ProgramClass programClass) - { - int[] interfaces = programClass.u2interfaces; - int interfacesCount = programClass.u2interfacesCount; - - if (DEBUG) - { - System.out.println("InterfaceDeleter: "+programClass.getName()+" ("+interfacesCount+" interfaces)"); - } - - // Copy the interfaces that aren't deleted. - int newInterfacesCount = 0; - for (int index = 0; index < interfacesCount; index++) - { - if (DEBUG) - { - System.out.println("InterfaceDeleter: "+(delete[index]?"- ":"+ ")+programClass.getInterfaceName(index)); - } - - if (!delete[index]) - { - interfaces[newInterfacesCount++] = interfaces[index]; - } - } - - // Update the signature. - if (newInterfacesCount < interfacesCount) - { - programClass.u2interfacesCount = newInterfacesCount; - - programClass.attributesAccept(this); - } - } - - - // Implementations for AttributeVisitor. - - public void visitAnyAttribute(Clazz clazz, Attribute attribute) {} - - - public void visitSignatureAttribute(Clazz clazz, SignatureAttribute signatureAttribute) - { - Clazz[] referencedClasses = signatureAttribute.referencedClasses; - if (referencedClasses != null) - { - // Process the generic definitions, superclass, and implemented - // interfaces. - InternalTypeEnumeration internalTypeEnumeration = - new InternalTypeEnumeration(signatureAttribute.getSignature(clazz)); - - // Recompose the signature types in a string buffer. - StringBuffer newSignatureBuffer = new StringBuffer(); - - // Also update the array with referenced classes. - int referencedClassIndex = 0; - int newReferencedClassIndex = 0; - - // Copy the variable type declarations and the super class type. - while (internalTypeEnumeration.hasMoreTypes()) - { - String internalType = internalTypeEnumeration.nextType(); - - // Append the type. - newSignatureBuffer.append(internalType); - - // Copy any referenced classes. - int classCount = - new DescriptorClassEnumeration(internalType).classCount(); - - for (int counter = 0; counter < classCount; counter++) - { - referencedClasses[newReferencedClassIndex++] = - referencedClasses[referencedClassIndex++]; - } - - if (DEBUG) - { - System.out.println("InterfaceDeleter: type = " + internalType + " (" + classCount + " referenced classes)"); - } - - if (ClassUtil.isInternalClassType(internalType)) - { - break; - } - } - - // Copy the interface types. - int index = 0; - while (internalTypeEnumeration.hasMoreTypes()) - { - String internalType = internalTypeEnumeration.nextType(); - - int classCount = - new DescriptorClassEnumeration(internalType).classCount(); - - if (DEBUG) - { - System.out.println("InterfaceDeleter: type " + (delete[index] ? "- " : "+ ") + internalType + " (" + classCount + " referenced classes)"); - } - - if (!delete[index++]) - { - // Append the type. - newSignatureBuffer.append(internalType); - - // Copy any referenced classes. - for (int counter = 0; counter < classCount; counter++) - { - referencedClasses[newReferencedClassIndex++] = - referencedClasses[referencedClassIndex++]; - } - } - else - { - referencedClassIndex += classCount; - } - } - - // Update the signature. - ((Utf8Constant)((ProgramClass)clazz).constantPool[signatureAttribute.u2signatureIndex]).setString(newSignatureBuffer.toString()); - - // Clear the remaining referenced classes. - Arrays.fill(referencedClasses, - newReferencedClassIndex, - referencedClassIndex, - null); - } - } -} |