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Diffstat (limited to 'src/proguard/optimize/info/PackageVisibleMemberInvokingClassMarker.java')
| -rw-r--r-- | src/proguard/optimize/info/PackageVisibleMemberInvokingClassMarker.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/proguard/optimize/info/PackageVisibleMemberInvokingClassMarker.java b/src/proguard/optimize/info/PackageVisibleMemberInvokingClassMarker.java new file mode 100644 index 0000000..9ec8ec6 --- /dev/null +++ b/src/proguard/optimize/info/PackageVisibleMemberInvokingClassMarker.java @@ -0,0 +1,81 @@ +/* + * ProGuard -- shrinking, optimization, obfuscation, and preverification + * of Java bytecode. + * + * Copyright (c) 2002-2009 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.visitor.ConstantVisitor; +import proguard.classfile.constant.*; +import proguard.classfile.util.SimplifiedVisitor; + +/** + * This ConstantVisitor marks all classes that invoke package visible members + * in other classes. + * + * @author Eric Lafortune + */ +public class PackageVisibleMemberInvokingClassMarker +extends SimplifiedVisitor +implements ConstantVisitor +{ + // Implementations for ConstantVisitor. + + public void visitAnyConstant(Clazz clazz, Constant constant) {} + + + public void visitAnyRefConstant(Clazz clazz, RefConstant refConstant) + { + Clazz referencedClass = refConstant.referencedClass; + if (referencedClass != null && + (referencedClass.getAccessFlags() & + ClassConstants.INTERNAL_ACC_PUBLIC) == 0) + { + setInvokesPackageVisibleMembers(clazz); + } + + Member referencedMember = refConstant.referencedMember; + if (referencedMember != null && + (referencedMember.getAccessFlags() & + (ClassConstants.INTERNAL_ACC_PUBLIC | + ClassConstants.INTERNAL_ACC_PRIVATE)) == 0) + { + setInvokesPackageVisibleMembers(clazz); + } + } + + + // Small utility methods. + + private static void setInvokesPackageVisibleMembers(Clazz clazz) + { + ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); + if (info != null) + { + info.setInvokesPackageVisibleMembers(); + } + } + + + public static boolean invokesPackageVisibleMembers(Clazz clazz) + { + ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); + return info == null || info.invokesPackageVisibleMembers(); + } +}
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