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Diffstat (limited to 'src/proguard/optimize/MemberDescriptorSpecializer.java')
-rw-r--r-- | src/proguard/optimize/MemberDescriptorSpecializer.java | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/proguard/optimize/MemberDescriptorSpecializer.java b/src/proguard/optimize/MemberDescriptorSpecializer.java deleted file mode 100644 index 4656092..0000000 --- a/src/proguard/optimize/MemberDescriptorSpecializer.java +++ /dev/null @@ -1,138 +0,0 @@ -/* - * 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.optimize; - -import proguard.classfile.*; -import proguard.classfile.editor.ClassReferenceFixer; -import proguard.classfile.util.*; -import proguard.classfile.visitor.MemberVisitor; -import proguard.evaluation.value.Value; -import proguard.optimize.evaluation.StoringInvocationUnit; - -/** - * This MemberVisitor specializes parameters in the descriptors of the - * methods that it visits. - * - * @see StoringInvocationUnit - * @see ClassReferenceFixer - * @author Eric Lafortune - */ -public class MemberDescriptorSpecializer -extends SimplifiedVisitor -implements MemberVisitor -{ - private static final boolean DEBUG = false; - - - private final MemberVisitor extraParameterMemberVisitor; - - - /** - * Creates a new MethodDescriptorShrinker. - */ - public MemberDescriptorSpecializer() - { - this(null); - } - - - /** - * Creates a new MethodDescriptorShrinker with an extra visitor. - * @param extraParameterMemberVisitor an optional extra visitor for all - * class members whose parameters have - * been specialized. - */ - public MemberDescriptorSpecializer(MemberVisitor extraParameterMemberVisitor) - { - this.extraParameterMemberVisitor = extraParameterMemberVisitor; - } - - - // Implementations for MemberVisitor. - - public void visitProgramField(ProgramClass programClass, ProgramField programField) - { - Value parameterValue = StoringInvocationUnit.getFieldValue(programField); - if (parameterValue.computationalType() == Value.TYPE_REFERENCE) - { - Clazz referencedClass = parameterValue.referenceValue().getReferencedClass(); - if (programField.referencedClass != referencedClass) - { - if (DEBUG) - { - System.out.println("MemberDescriptorSpecializer: "+programClass.getName()+"."+programField.getName(programClass)+" "+programField.getDescriptor(programClass)); - System.out.println(" "+programField.referencedClass.getName()+" -> "+referencedClass.getName()); - } - - programField.referencedClass = referencedClass; - - // Visit the field, if required. - if (extraParameterMemberVisitor != null) - { - extraParameterMemberVisitor.visitProgramField(programClass, programField); - } - } - } - } - - - public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) - { - // All parameters of non-static methods are shifted by one in the local - // variable frame. - int firstParameterIndex = - (programMethod.getAccessFlags() & ClassConstants.ACC_STATIC) != 0 ? - 0 : 1; - - int parameterCount = - ClassUtil.internalMethodParameterCount(programMethod.getDescriptor(programClass)); - - int classIndex = 0; - - // Go over the parameters. - for (int parameterIndex = firstParameterIndex; parameterIndex < parameterCount; parameterIndex++) - { - Value parameterValue = StoringInvocationUnit.getMethodParameterValue(programMethod, parameterIndex); - if (parameterValue.computationalType() == Value.TYPE_REFERENCE) - { - Clazz referencedClass = parameterValue.referenceValue().getReferencedClass(); - if (programMethod.referencedClasses[classIndex] != referencedClass) - { - if (DEBUG) - { - System.out.println("MemberDescriptorSpecializer: "+programClass.getName()+"."+programMethod.getName(programClass)+programMethod.getDescriptor(programClass)); - System.out.println(" "+programMethod.referencedClasses[classIndex].getName()+" -> "+referencedClass.getName()); - } - - programMethod.referencedClasses[classIndex] = referencedClass; - - // Visit the method, if required. - if (extraParameterMemberVisitor != null) - { - extraParameterMemberVisitor.visitProgramMethod(programClass, programMethod); - } - } - - classIndex++; - } - } - } -} |