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Diffstat (limited to 'src/proguard/classfile/editor/ExceptionAdder.java')
-rw-r--r-- | src/proguard/classfile/editor/ExceptionAdder.java | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/proguard/classfile/editor/ExceptionAdder.java b/src/proguard/classfile/editor/ExceptionAdder.java new file mode 100644 index 0000000..1ccb1a6 --- /dev/null +++ b/src/proguard/classfile/editor/ExceptionAdder.java @@ -0,0 +1,65 @@ +/* + * 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.editor; + +import proguard.classfile.*; +import proguard.classfile.attribute.ExceptionsAttribute; +import proguard.classfile.constant.ClassConstant; +import proguard.classfile.constant.visitor.ConstantVisitor; +import proguard.classfile.util.SimplifiedVisitor; + +/** + * This ConstantVisitor adds all class constants that it visits to the given + * target exceptions attribute. + * + * @author Eric Lafortune + */ +public class ExceptionAdder +extends SimplifiedVisitor +implements ConstantVisitor +{ + private final ConstantAdder constantAdder; + private final ExceptionsAttributeEditor exceptionsAttributeEditor; + + + /** + * Creates a new ExceptionAdder that will copy classes into the given + * target exceptions attribute. + */ + public ExceptionAdder(ProgramClass targetClass, + ExceptionsAttribute targetExceptionsAttribute) + { + constantAdder = new ConstantAdder(targetClass); + exceptionsAttributeEditor = new ExceptionsAttributeEditor(targetExceptionsAttribute); + } + + + // Implementations for ConstantVisitor. + + public void visitClassConstant(Clazz clazz, ClassConstant classConstant) + { + // Add a class constant to the constant pool. + constantAdder.visitClassConstant(clazz, classConstant); + + // Add the index of the class constant to the list of exceptions. + exceptionsAttributeEditor.addException(constantAdder.getConstantIndex()); + } +} |