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Diffstat (limited to 'src/proguard/GetEnclosingMethodChecker.java')
-rw-r--r-- | src/proguard/GetEnclosingMethodChecker.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/proguard/GetEnclosingMethodChecker.java b/src/proguard/GetEnclosingMethodChecker.java new file mode 100644 index 0000000..e833042 --- /dev/null +++ b/src/proguard/GetEnclosingMethodChecker.java @@ -0,0 +1,76 @@ +/* + * 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.constant.*; +import proguard.classfile.constant.visitor.ConstantVisitor; +import proguard.classfile.util.*; + +/** + * This constant visitor checks whether visited method references try to + * access enclosing methods. + * + * @author Eric Lafortune + */ +public class GetEnclosingMethodChecker +extends SimplifiedVisitor +implements ConstantVisitor +{ + private final WarningPrinter notePrinter; + + + /** + * Creates a new GetEnclosingMethodChecker. + */ + public GetEnclosingMethodChecker(WarningPrinter notePrinter) + { + this.notePrinter = notePrinter; + } + + + // Implementations for ConstantVisitor. + + public void visitAnyConstant(Clazz clazz, Constant constant) {} + + + public void visitMethodrefConstant(Clazz clazz, MethodrefConstant methodrefConstant) + { + String className = methodrefConstant.getClassName(clazz); + + if (className.equals(ClassConstants.NAME_JAVA_LANG_CLASS)) + { + String methodName = methodrefConstant.getName(clazz); + + if (methodName.equals(ClassConstants.METHOD_NAME_CLASS_GET_ENCLOSING_CONSTRUCTOR) || + methodName.equals(ClassConstants.METHOD_NAME_CLASS_GET_ENCLOSING_METHOD)) + { + notePrinter.print(clazz.getName(), + "Note: " + + ClassUtil.externalClassName(clazz.getName()) + + " calls '" + + ClassUtil.externalShortClassName(ClassUtil.externalClassName(className)) + + "." + + methodName + "'"); + } + } + } +} |