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/*
* 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;
import proguard.classfile.util.*;
import java.util.List;
/**
* This class checks if the user is specifying to assume no side effects
* for a reasonable number of methods in a class: not none and not all.
*
* @author Eric Lafortune
*/
public class AssumeNoSideEffectsChecker
{
private final WarningPrinter notePrinter;
/**
* Creates a new KeepClassMemberChecker.
*/
public AssumeNoSideEffectsChecker(WarningPrinter notePrinter)
{
this.notePrinter = notePrinter;
}
/**
* Checks if the given class specifications try to assume no side effects
* for all methods in a class, printing notes if necessary.
*/
public void checkClassSpecifications(List classSpecifications)
{
if (classSpecifications != null)
{
for (int classSpecificationIndex = 0;
classSpecificationIndex < classSpecifications.size();
classSpecificationIndex++)
{
ClassSpecification classSpecification =
(ClassSpecification)classSpecifications.get(classSpecificationIndex);
String className = classSpecification.className;
if (className == null)
{
className = classSpecification.extendsClassName;
}
if (className == null ||
notePrinter.accepts(className))
{
List methodSpecifications =
classSpecification.methodSpecifications;
if (methodSpecifications != null)
{
for (int methodSpecificationIndex = 0;
methodSpecificationIndex < methodSpecifications.size();
methodSpecificationIndex++)
{
final MemberSpecification methodSpecification =
(MemberSpecification)methodSpecifications.get(methodSpecificationIndex);
if (methodSpecification.name == null &&
methodSpecification.descriptor == null)
{
notePrinter.print(className,
"Note: the configuration specifies that none of the methods of class '" +
(className == null ?
ConfigurationConstants.ANY_CLASS_KEYWORD :
ClassUtil.externalClassName(className)) + "' have any side effects");
}
}
}
}
}
}
}
}
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