diff options
Diffstat (limited to 'third_party/java/proguard/proguard5.3.3/src/proguard/shrink/UsedMemberFilter.java')
-rw-r--r-- | third_party/java/proguard/proguard5.3.3/src/proguard/shrink/UsedMemberFilter.java | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/shrink/UsedMemberFilter.java b/third_party/java/proguard/proguard5.3.3/src/proguard/shrink/UsedMemberFilter.java new file mode 100644 index 0000000000..fa01a06746 --- /dev/null +++ b/third_party/java/proguard/proguard5.3.3/src/proguard/shrink/UsedMemberFilter.java @@ -0,0 +1,93 @@ +/* + * ProGuard -- shrinking, optimization, obfuscation, and preverification + * of Java bytecode. + * + * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare + * + * 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.shrink; + +import proguard.classfile.*; +import proguard.classfile.visitor.MemberVisitor; + +/** + * This MemberVisitor delegates all its method calls to another MemberVisitor, + * but only for Member objects that are marked as used. + * + * @see UsageMarker + * + * @author Eric Lafortune + */ +public class UsedMemberFilter +implements MemberVisitor +{ + private final UsageMarker usageMarker; + private final MemberVisitor memberVisitor; + + + /** + * Creates a new UsedMemberFilter. + * @param usageMarker the usage marker that is used to mark the classes + * and class members. + * @param memberVisitor the member visitor to which the visiting will be + * delegated. + */ + public UsedMemberFilter(UsageMarker usageMarker, + MemberVisitor memberVisitor) + { + this.usageMarker = usageMarker; + this.memberVisitor = memberVisitor; + } + + + // Implementations for MemberVisitor. + + + public void visitProgramField(ProgramClass programClass, ProgramField programField) + { + if (usageMarker.isUsed(programField)) + { + memberVisitor.visitProgramField(programClass, programField); + } + } + + + public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) + { + if (usageMarker.isUsed(programMethod)) + { + memberVisitor.visitProgramMethod(programClass, programMethod); + } + } + + + public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) + { + if (usageMarker.isUsed(libraryField)) + { + memberVisitor.visitLibraryField(libraryClass, libraryField); + } + } + + + public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) + { + if (usageMarker.isUsed(libraryMethod)) + { + memberVisitor.visitLibraryMethod(libraryClass, libraryMethod); + } + } +} |