/*
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* ProGuard -- shrinking, optimization, obfuscation, and preverification
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* of Java bytecode.
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*
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* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package proguard;
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import proguard.classfile.util.*;
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import java.util.List;
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/**
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* This class checks if the user is specifying to assume no side effects
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* for a reasonable number of methods in a class: not none and not all.
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*
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* @author Eric Lafortune
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*/
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public class AssumeNoSideEffectsChecker
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{
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private final WarningPrinter notePrinter;
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/**
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* Creates a new KeepClassMemberChecker.
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*/
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public AssumeNoSideEffectsChecker(WarningPrinter notePrinter)
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{
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this.notePrinter = notePrinter;
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}
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/**
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* Checks if the given class specifications try to assume no side effects
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* for all methods in a class, printing notes if necessary.
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*/
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public void checkClassSpecifications(List classSpecifications)
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{
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if (classSpecifications != null)
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{
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for (int classSpecificationIndex = 0;
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classSpecificationIndex < classSpecifications.size();
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classSpecificationIndex++)
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{
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ClassSpecification classSpecification =
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(ClassSpecification)classSpecifications.get(classSpecificationIndex);
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String className = classSpecification.className;
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if (className == null)
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{
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className = classSpecification.extendsClassName;
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}
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if (className == null ||
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notePrinter.accepts(className))
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{
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List methodSpecifications =
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classSpecification.methodSpecifications;
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if (methodSpecifications != null)
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{
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for (int methodSpecificationIndex = 0;
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methodSpecificationIndex < methodSpecifications.size();
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methodSpecificationIndex++)
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{
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final MemberSpecification methodSpecification =
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(MemberSpecification)methodSpecifications.get(methodSpecificationIndex);
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if (methodSpecification.name == null &&
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methodSpecification.descriptor == null)
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{
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notePrinter.print(className,
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"Note: the configuration specifies that none of the methods of class '" +
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(className == null ?
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ConfigurationConstants.ANY_CLASS_KEYWORD :
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ClassUtil.externalClassName(className)) + "' have any side effects");
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}
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}
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}
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}
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}
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}
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}
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}
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