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Diffstat (limited to 'src/proguard/classfile/attribute/visitor/NonEmptyAttributeFilter.java')
-rw-r--r-- | src/proguard/classfile/attribute/visitor/NonEmptyAttributeFilter.java | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/src/proguard/classfile/attribute/visitor/NonEmptyAttributeFilter.java b/src/proguard/classfile/attribute/visitor/NonEmptyAttributeFilter.java new file mode 100644 index 0000000..2ccc09c --- /dev/null +++ b/src/proguard/classfile/attribute/visitor/NonEmptyAttributeFilter.java @@ -0,0 +1,293 @@ +/* + * ProGuard -- shrinking, optimization, obfuscation, and preverification + * of Java bytecode. + * + * Copyright (c) 2002-2013 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.attribute.visitor; + +import proguard.classfile.*; +import proguard.classfile.attribute.*; +import proguard.classfile.attribute.annotation.*; +import proguard.classfile.attribute.preverification.*; +import proguard.util.StringMatcher; + +/** + * This AttributeVisitor delegates its visits another AttributeVisitor, but + * only when the visited attribute is not empty. For instance, a local variable + * table without variables is empty. + * + * @author Eric Lafortune + */ +public class NonEmptyAttributeFilter +implements AttributeVisitor +{ + private final AttributeVisitor attributeVisitor; + + + /** + * Creates a new NonEmptyAttributeFilter. + * @param attributeVisitor the <code>AttributeVisitor</code> to which + * visits will be delegated. + */ + public NonEmptyAttributeFilter(AttributeVisitor attributeVisitor) + { + this.attributeVisitor = attributeVisitor; + } + + + // Implementations for AttributeVisitor. + + public void visitUnknownAttribute(Clazz clazz, UnknownAttribute unknownAttribute) + { + unknownAttribute.accept(clazz, attributeVisitor); + } + + + public void visitBootstrapMethodsAttribute(Clazz clazz, BootstrapMethodsAttribute bootstrapMethodsAttribute) + { + if (bootstrapMethodsAttribute.u2bootstrapMethodsCount > 0) + { + bootstrapMethodsAttribute.accept(clazz, attributeVisitor); + } + } + + + public void visitSourceFileAttribute(Clazz clazz, SourceFileAttribute sourceFileAttribute) + { + sourceFileAttribute.accept(clazz, attributeVisitor); + } + + + public void visitSourceDirAttribute(Clazz clazz, SourceDirAttribute sourceDirAttribute) + { + sourceDirAttribute.accept(clazz, attributeVisitor); + } + + + public void visitInnerClassesAttribute(Clazz clazz, InnerClassesAttribute innerClassesAttribute) + { + if (innerClassesAttribute.u2classesCount > 0) + { + innerClassesAttribute.accept(clazz, attributeVisitor); + } + } + + + public void visitEnclosingMethodAttribute(Clazz clazz, EnclosingMethodAttribute enclosingMethodAttribute) + { + enclosingMethodAttribute.accept(clazz, attributeVisitor); + } + + + public void visitDeprecatedAttribute(Clazz clazz, DeprecatedAttribute deprecatedAttribute) + { + deprecatedAttribute.accept(clazz, attributeVisitor); + } + + + public void visitDeprecatedAttribute(Clazz clazz, Field field, DeprecatedAttribute deprecatedAttribute) + { + deprecatedAttribute.accept(clazz, field, attributeVisitor); + } + + + public void visitDeprecatedAttribute(Clazz clazz, Method method, DeprecatedAttribute deprecatedAttribute) + { + deprecatedAttribute.accept(clazz, method, attributeVisitor); + } + + + public void visitSyntheticAttribute(Clazz clazz, SyntheticAttribute syntheticAttribute) + { + syntheticAttribute.accept(clazz, attributeVisitor); + } + + + public void visitSyntheticAttribute(Clazz clazz, Field field, SyntheticAttribute syntheticAttribute) + { + syntheticAttribute.accept(clazz, field, attributeVisitor); + } + + + public void visitSyntheticAttribute(Clazz clazz, Method method, SyntheticAttribute syntheticAttribute) + { + syntheticAttribute.accept(clazz, method, attributeVisitor); + } + + + public void visitSignatureAttribute(Clazz clazz, SignatureAttribute signatureAttribute) + { + signatureAttribute.accept(clazz, attributeVisitor); + } + + + public void visitSignatureAttribute(Clazz clazz, Field field, SignatureAttribute signatureAttribute) + { + signatureAttribute.accept(clazz, field, attributeVisitor); + } + + + public void visitSignatureAttribute(Clazz clazz, Method method, SignatureAttribute signatureAttribute) + { + signatureAttribute.accept(clazz, method, attributeVisitor); + } + + + public void visitConstantValueAttribute(Clazz clazz, Field field, ConstantValueAttribute constantValueAttribute) + { + constantValueAttribute.accept(clazz, field, attributeVisitor); + } + + + public void visitExceptionsAttribute(Clazz clazz, Method method, ExceptionsAttribute exceptionsAttribute) + { + if (exceptionsAttribute.u2exceptionIndexTableLength > 0) + { + exceptionsAttribute.accept(clazz, method, attributeVisitor); + } + } + + + public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute) + { + codeAttribute.accept(clazz, method, attributeVisitor); + } + + + public void visitStackMapAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapAttribute stackMapAttribute) + { + if (stackMapAttribute.u2stackMapFramesCount > 0) + { + stackMapAttribute.accept(clazz, method, codeAttribute, attributeVisitor); + } + } + + + public void visitStackMapTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapTableAttribute stackMapTableAttribute) + { + if (stackMapTableAttribute.u2stackMapFramesCount > 0) + { + stackMapTableAttribute.accept(clazz, method, codeAttribute, attributeVisitor); + } + } + + + public void visitLineNumberTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LineNumberTableAttribute lineNumberTableAttribute) + { + if (lineNumberTableAttribute.u2lineNumberTableLength > 0) + { + lineNumberTableAttribute.accept(clazz, method, codeAttribute, attributeVisitor); + } + } + + + public void visitLocalVariableTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTableAttribute localVariableTableAttribute) + { + if (localVariableTableAttribute.u2localVariableTableLength > 0) + { + localVariableTableAttribute.accept(clazz, method, codeAttribute, attributeVisitor); + } + } + + + public void visitLocalVariableTypeTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTypeTableAttribute localVariableTypeTableAttribute) + { + if (localVariableTypeTableAttribute.u2localVariableTypeTableLength > 0) + { + localVariableTypeTableAttribute.accept(clazz, method, codeAttribute, attributeVisitor); + } + } + + + public void visitRuntimeVisibleAnnotationsAttribute(Clazz clazz, RuntimeVisibleAnnotationsAttribute runtimeVisibleAnnotationsAttribute) + { + if (runtimeVisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeVisibleAnnotationsAttribute.accept(clazz, attributeVisitor); + } + } + + + public void visitRuntimeVisibleAnnotationsAttribute(Clazz clazz, Field field, RuntimeVisibleAnnotationsAttribute runtimeVisibleAnnotationsAttribute) + { + if (runtimeVisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeVisibleAnnotationsAttribute.accept(clazz, field, attributeVisitor); + } + } + + + public void visitRuntimeVisibleAnnotationsAttribute(Clazz clazz, Method method, RuntimeVisibleAnnotationsAttribute runtimeVisibleAnnotationsAttribute) + { + if (runtimeVisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeVisibleAnnotationsAttribute.accept(clazz, method, attributeVisitor); + } + } + + + public void visitRuntimeInvisibleAnnotationsAttribute(Clazz clazz, RuntimeInvisibleAnnotationsAttribute runtimeInvisibleAnnotationsAttribute) + { + if (runtimeInvisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeInvisibleAnnotationsAttribute.accept(clazz, attributeVisitor); + } + } + + + public void visitRuntimeInvisibleAnnotationsAttribute(Clazz clazz, Field field, RuntimeInvisibleAnnotationsAttribute runtimeInvisibleAnnotationsAttribute) + { + if (runtimeInvisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeInvisibleAnnotationsAttribute.accept(clazz, field, attributeVisitor); + } + } + + + public void visitRuntimeInvisibleAnnotationsAttribute(Clazz clazz, Method method, RuntimeInvisibleAnnotationsAttribute runtimeInvisibleAnnotationsAttribute) + { + if (runtimeInvisibleAnnotationsAttribute.u2annotationsCount > 0) + { + runtimeInvisibleAnnotationsAttribute.accept(clazz, method, attributeVisitor); + } + } + + + public void visitRuntimeVisibleParameterAnnotationsAttribute(Clazz clazz, Method method, RuntimeVisibleParameterAnnotationsAttribute runtimeVisibleParameterAnnotationsAttribute) + { + if (runtimeVisibleParameterAnnotationsAttribute.u2parametersCount > 0) + { + runtimeVisibleParameterAnnotationsAttribute.accept(clazz, method, attributeVisitor); + } + } + + + public void visitRuntimeInvisibleParameterAnnotationsAttribute(Clazz clazz, Method method, RuntimeInvisibleParameterAnnotationsAttribute runtimeInvisibleParameterAnnotationsAttribute) + { + if (runtimeInvisibleParameterAnnotationsAttribute.u2parametersCount > 0) + { + runtimeInvisibleParameterAnnotationsAttribute.accept(clazz, method, attributeVisitor); + } + } + + + public void visitAnnotationDefaultAttribute(Clazz clazz, Method method, AnnotationDefaultAttribute annotationDefaultAttribute) + { + annotationDefaultAttribute.accept(clazz, method, attributeVisitor); + } +} |