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Diffstat (limited to 'src/proguard/preverify/Preverifier.java')
-rw-r--r-- | src/proguard/preverify/Preverifier.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/proguard/preverify/Preverifier.java b/src/proguard/preverify/Preverifier.java new file mode 100644 index 0000000..e071c5c --- /dev/null +++ b/src/proguard/preverify/Preverifier.java @@ -0,0 +1,74 @@ +/* + * 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.preverify; + +import proguard.Configuration; +import proguard.classfile.*; +import proguard.classfile.attribute.visitor.AllAttributeVisitor; +import proguard.classfile.visitor.*; + +/** + * This class can preverify methods in program class pools, according to a given + * configuration. + * + * @author Eric Lafortune + */ +public class Preverifier +{ + private final Configuration configuration; + + + /** + * Creates a new Preverifier. + */ + public Preverifier(Configuration configuration) + { + this.configuration = configuration; + } + + + /** + * Performs preverification of the given program class pool. + */ + public void execute(ClassPool programClassPool) + { + // Clean up any old visitor info. + programClassPool.classesAccept(new ClassCleaner()); + + // Preverify all methods. + ClassVisitor preverifier = + new AllMethodVisitor( + new AllAttributeVisitor( + new CodePreverifier(configuration.microEdition))); + + // In Java Standard Edition, only class files from Java 6 or higher + // should be preverified. + if (!configuration.microEdition) + { + preverifier = + new ClassVersionFilter(ClassConstants.INTERNAL_CLASS_VERSION_1_6, + Integer.MAX_VALUE, + preverifier); + } + + programClassPool.classesAccept(preverifier); + } +} |