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Diffstat (limited to 'src/proguard/optimize/info/NonPrivateMemberMarker.java')
-rw-r--r-- | src/proguard/optimize/info/NonPrivateMemberMarker.java | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/src/proguard/optimize/info/NonPrivateMemberMarker.java b/src/proguard/optimize/info/NonPrivateMemberMarker.java deleted file mode 100644 index 152e114..0000000 --- a/src/proguard/optimize/info/NonPrivateMemberMarker.java +++ /dev/null @@ -1,171 +0,0 @@ -/* - * 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.optimize.info; - -import proguard.classfile.*; -import proguard.classfile.constant.*; -import proguard.classfile.constant.visitor.ConstantVisitor; -import proguard.classfile.util.SimplifiedVisitor; -import proguard.classfile.visitor.*; - -/** - * This ClassVisitor marks all class members that can not be made private in the - * classes that it visits, and in the classes to which they refer. - * - * @author Eric Lafortune - */ -public class NonPrivateMemberMarker -extends SimplifiedVisitor -implements ClassVisitor, - ConstantVisitor, - MemberVisitor -{ - private final MethodImplementationFilter filteredMethodMarker = new MethodImplementationFilter(this); - - - // Implementations for ClassVisitor. - - public void visitProgramClass(ProgramClass programClass) - { - // Mark all referenced class members in different classes. - programClass.constantPoolEntriesAccept(this); - - // Explicitly mark the <clinit> method. - programClass.methodAccept(ClassConstants.METHOD_NAME_CLINIT, - ClassConstants.METHOD_TYPE_CLINIT, - this); - - // Explicitly mark the parameterless <init> method. - programClass.methodAccept(ClassConstants.METHOD_NAME_INIT, - ClassConstants.METHOD_TYPE_INIT, - this); - - // Mark all methods that may have implementations. - programClass.methodsAccept(filteredMethodMarker); - } - - - public void visitLibraryClass(LibraryClass libraryClass) - { - // Go over all methods. - libraryClass.methodsAccept(this); - } - - - // Implementations for ConstantVisitor. - - public void visitAnyConstant(Clazz clazz, Constant constant) {} - - - public void visitStringConstant(Clazz clazz, StringConstant stringConstant) - { - // The referenced class member, if any, can never be made private, - // even if it's in the same class. - stringConstant.referencedMemberAccept(this); - } - - - public void visitAnyRefConstant(Clazz clazz, RefConstant refConstant) - { - Clazz referencedClass = refConstant.referencedClass; - - // Is it referring to a class member in another class? - // The class member might be in another class, or - // it may be referenced through another class. - if (referencedClass != null && - !referencedClass.equals(clazz) || - !refConstant.getClassName(clazz).equals(clazz.getName())) - { - // The referenced class member can never be made private. - refConstant.referencedMemberAccept(this); - } - } - - - // Implementations for MemberVisitor. - - public void visitProgramField(ProgramClass programClass, ProgramField programField) - { - markCanNotBeMadePrivate(programField); - } - - - public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) - { - markCanNotBeMadePrivate(libraryField); - } - - - public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) - { - markCanNotBeMadePrivate(programMethod); - } - - - public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) - { - markCanNotBeMadePrivate(libraryMethod); - } - - - // Small utility methods. - - private static void markCanNotBeMadePrivate(Field field) - { - FieldOptimizationInfo info = FieldOptimizationInfo.getFieldOptimizationInfo(field); - if (info != null) - { - info.setCanNotBeMadePrivate(); - } - } - - - /** - * Returns whether the given field can be made private. - */ - public static boolean canBeMadePrivate(Field field) - { - FieldOptimizationInfo info = FieldOptimizationInfo.getFieldOptimizationInfo(field); - return info != null && - info.canBeMadePrivate(); - } - - - private static void markCanNotBeMadePrivate(Method method) - { - MethodOptimizationInfo info = MethodOptimizationInfo.getMethodOptimizationInfo(method); - if (info != null) - { - info.setCanNotBeMadePrivate(); - } - } - - - /** - * Returns whether the given method can be made private. - */ - public static boolean canBeMadePrivate(Method method) - { - MethodOptimizationInfo info = MethodOptimizationInfo.getMethodOptimizationInfo(method); - return info != null && - info.canBeMadePrivate(); - } -} |