diff options
Diffstat (limited to 'src/proguard/classfile/visitor/MemberNameFilter.java')
-rw-r--r-- | src/proguard/classfile/visitor/MemberNameFilter.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/proguard/classfile/visitor/MemberNameFilter.java b/src/proguard/classfile/visitor/MemberNameFilter.java new file mode 100644 index 0000000..0fe450e --- /dev/null +++ b/src/proguard/classfile/visitor/MemberNameFilter.java @@ -0,0 +1,113 @@ +/* + * 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.classfile.visitor; + +import proguard.classfile.*; +import proguard.util.*; + + +/** + * This <code>MemberVisitor</code> delegates its visits to another given + * <code>MemberVisitor</code>, but only when the visited member + * has a name that matches a given regular expression. + * + * @author Eric Lafortune + */ +public class MemberNameFilter implements MemberVisitor +{ + private final StringMatcher regularExpressionMatcher; + private final MemberVisitor memberVisitor; + + + /** + * Creates a new MemberNameFilter. + * @param regularExpression the regular expression against which member + * names will be matched. + * @param memberVisitor the <code>MemberVisitor</code> to which visits + * will be delegated. + */ + public MemberNameFilter(String regularExpression, + MemberVisitor memberVisitor) + { + this(new NameParser().parse(regularExpression), memberVisitor); + } + + + /** + * Creates a new MemberNameFilter. + * @param regularExpressionMatcher the regular expression against which + * member names will be matched. + * @param memberVisitor the <code>MemberVisitor</code> to which + * visits will be delegated. + */ + public MemberNameFilter(StringMatcher regularExpressionMatcher, + MemberVisitor memberVisitor) + { + this.regularExpressionMatcher = regularExpressionMatcher; + this.memberVisitor = memberVisitor; + } + + + // Implementations for MemberVisitor. + + public void visitProgramField(ProgramClass programClass, ProgramField programField) + { + if (accepted(programField.getName(programClass))) + { + memberVisitor.visitProgramField(programClass, programField); + } + } + + + public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) + { + if (accepted(programMethod.getName(programClass))) + { + memberVisitor.visitProgramMethod(programClass, programMethod); + } + } + + + public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) + { + if (accepted(libraryField.getName(libraryClass))) + { + memberVisitor.visitLibraryField(libraryClass, libraryField); + } + } + + + public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) + { + if (accepted(libraryMethod.getName(libraryClass))) + { + memberVisitor.visitLibraryMethod(libraryClass, libraryMethod); + } + } + + + // Small utility methods. + + private boolean accepted(String name) + { + return regularExpressionMatcher.matches(name); + } +} |