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Diffstat (limited to 'src/proguard/classfile/util/EnumFieldReferenceInitializer.java')
| -rw-r--r-- | src/proguard/classfile/util/EnumFieldReferenceInitializer.java | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/proguard/classfile/util/EnumFieldReferenceInitializer.java b/src/proguard/classfile/util/EnumFieldReferenceInitializer.java deleted file mode 100644 index c856893..0000000 --- a/src/proguard/classfile/util/EnumFieldReferenceInitializer.java +++ /dev/null @@ -1,149 +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.classfile.util; - -import proguard.classfile.*; -import proguard.classfile.attribute.CodeAttribute; -import proguard.classfile.attribute.annotation.*; -import proguard.classfile.attribute.annotation.visitor.ElementValueVisitor; -import proguard.classfile.attribute.visitor.AllAttributeVisitor; -import proguard.classfile.constant.*; -import proguard.classfile.constant.visitor.ConstantVisitor; -import proguard.classfile.instruction.*; -import proguard.classfile.instruction.visitor.*; -import proguard.classfile.visitor.MemberVisitor; - -/** - * This ElementValueVisitor initializes the field references of the - * EnumConstantElementValue instances that it visits. - * - * @author Eric Lafortune - */ -public class EnumFieldReferenceInitializer -extends SimplifiedVisitor -implements ElementValueVisitor, - InstructionVisitor, - ConstantVisitor -{ - //* - private static final boolean DEBUG = false; - /*/ - private static boolean DEBUG = true; - //*/ - - private MemberVisitor enumFieldFinder = new AllAttributeVisitor( - new AllInstructionVisitor(this)); - - // Fields acting as parameters and return values for the visitors. - private String enumTypeName; - private String enumConstantName; - private boolean enumConstantNameFound; - private Clazz referencedEnumClass; - private Field referencedEnumField; - - - // Implementations for ElementValueVisitor. - - public void visitAnyElementValue(Clazz clazz, Annotation annotation, ElementValue elementValue) {} - - - public void visitEnumConstantElementValue(Clazz clazz, Annotation annotation, EnumConstantElementValue enumConstantElementValue) - { - - if (enumConstantElementValue.referencedClasses != null && - enumConstantElementValue.referencedClasses.length > 0) - { - referencedEnumClass = enumConstantElementValue.referencedClasses[0]; - if (referencedEnumClass != null) - { - // Try to find the enum field through the static enum - // initialization code (at least for program classes). - enumTypeName = enumConstantElementValue.getTypeName(clazz); - enumConstantName = enumConstantElementValue.getConstantName(clazz); - referencedEnumField = null; - referencedEnumClass.methodAccept(ClassConstants.METHOD_NAME_CLINIT, - ClassConstants.METHOD_TYPE_CLINIT, - enumFieldFinder); - - // Otherwise try to find the enum field through its name. - // The constant name could be different from the field name, if - // the latter is already obfuscated. - if (referencedEnumField == null) - { - referencedEnumField = - referencedEnumClass.findField(enumConstantName, - enumTypeName); - } - - if (DEBUG) - { - System.out.println("EnumFieldReferenceInitializer: ["+referencedEnumClass.getName()+"."+enumConstantName+"] -> "+referencedEnumField); - } - - enumConstantElementValue.referencedField = referencedEnumField; - } - } - } - - - // Implementations for InstructionVisitor. - - public void visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction) {} - - - public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction) - { - switch (constantInstruction.opcode) - { - case InstructionConstants.OP_LDC: - case InstructionConstants.OP_LDC_W: - case InstructionConstants.OP_PUTSTATIC: - clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this); - break; - } - } - - - // Implementations for ConstantVisitor. - - public void visitAnyConstant(Clazz clazz, Constant constant) {} - - - public void visitStringConstant(Clazz clazz, StringConstant stringConstant) - { - enumConstantNameFound = - enumConstantName.equals(stringConstant.getString(clazz)); - } - - - public void visitFieldrefConstant(Clazz clazz, FieldrefConstant fieldrefConstant) - { - if (enumConstantNameFound) - { - if (enumTypeName.equals(fieldrefConstant.getType(clazz))) - { - referencedEnumField = (Field)fieldrefConstant.referencedMember; - } - - enumConstantNameFound = false; - } - } -}
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