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Diffstat (limited to 'src/proguard/AssumeNoSideEffectsChecker.java')
-rw-r--r-- | src/proguard/AssumeNoSideEffectsChecker.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/proguard/AssumeNoSideEffectsChecker.java b/src/proguard/AssumeNoSideEffectsChecker.java new file mode 100644 index 0000000..5932b70 --- /dev/null +++ b/src/proguard/AssumeNoSideEffectsChecker.java @@ -0,0 +1,98 @@ +/* + * 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"); + } + } + } + } + } + } + } +} |