diff options
Diffstat (limited to 'src/proguard/ClassMemberChecker.java')
| -rw-r--r-- | src/proguard/ClassMemberChecker.java | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/proguard/ClassMemberChecker.java b/src/proguard/ClassMemberChecker.java new file mode 100644 index 0000000..249105e --- /dev/null +++ b/src/proguard/ClassMemberChecker.java @@ -0,0 +1,158 @@ +/* + * 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.*; +import proguard.classfile.util.*; +import proguard.classfile.visitor.MemberVisitor; + +import java.util.List; + +/** + * This class checks if the user has specified non-existent class members. + * + * @author Eric Lafortune + */ +public class ClassMemberChecker +extends SimplifiedVisitor +implements MemberVisitor +{ + private final ClassPool programClassPool; + private final WarningPrinter notePrinter; + + + /** + * Creates a new ClassMemberChecker. + */ + public ClassMemberChecker(ClassPool programClassPool, + WarningPrinter notePrinter) + { + this.programClassPool = programClassPool; + this.notePrinter = notePrinter; + } + + + /** + * Checks the classes mentioned in the given class specifications, printing + * notes if necessary. + */ + public void checkClassSpecifications(List classSpecifications) + { + if (classSpecifications != null) + { + for (int index = 0; index < classSpecifications.size(); index++) + { + ClassSpecification classSpecification = + (ClassSpecification)classSpecifications.get(index); + + String className = classSpecification.className; + if (className != null && + !containsWildCards(className) && + notePrinter.accepts(className)) + { + Clazz clazz = programClassPool.getClass(className); + if (clazz != null) + { + checkMemberSpecifications(clazz, classSpecification.fieldSpecifications, true); + checkMemberSpecifications(clazz, classSpecification.methodSpecifications, false); + } + } + } + } + } + + + /** + * Checks the class members mentioned in the given class member + * specifications, printing notes if necessary. + */ + private void checkMemberSpecifications(Clazz clazz, + List memberSpecifications, + boolean isField) + { + if (memberSpecifications != null) + { + String className = clazz.getName(); + + for (int index = 0; index < memberSpecifications.size(); index++) + { + MemberSpecification memberSpecification = + (MemberSpecification)memberSpecifications.get(index); + + String memberName = memberSpecification.name; + String descriptor = memberSpecification.descriptor; + if (memberName != null && + !containsWildCards(memberName) && + descriptor != null && + !containsWildCards(descriptor)) + { + if (isField) + { + if (clazz.findField(memberName, descriptor) == null) + { + notePrinter.print(className, + "Note: the configuration refers to the unknown field '" + + ClassUtil.externalFullFieldDescription(0, memberName, descriptor) + "' in class '" + + ClassUtil.externalClassName(className) + "'"); + } + } + else + { + if (clazz.findMethod(memberName, descriptor) == null) + { + notePrinter.print(className, + "Note: the configuration refers to the unknown method '" + + ClassUtil.externalFullMethodDescription(className, 0, memberName, descriptor) + "' in class '" + + ClassUtil.externalClassName(className) + "'"); + } + } + } + } + } + } + + + private static boolean containsWildCards(String string) + { + return string != null && + (string.indexOf('!') >= 0 || + string.indexOf('*') >= 0 || + string.indexOf('?') >= 0 || + string.indexOf(',') >= 0 || + string.indexOf("///") >= 0); + } + + + // Implementations for MemberVisitor. + + public void visitProgramField(ProgramClass programClass, ProgramField programField) + { + System.out.println(" Maybe you meant the field '" + + ClassUtil.externalFullFieldDescription(0, programField.getName(programClass), programField.getDescriptor(programClass)) + "'?"); + } + + + public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) + { + System.out.println(" Maybe you meant the method '" + + ClassUtil.externalFullMethodDescription(programClass.getName(), 0, programMethod.getName(programClass), programMethod.getDescriptor(programClass)) + "'?"); + } +}
\ No newline at end of file |