| /* |
| * 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.constant; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.constant.visitor.ConstantVisitor; |
| import proguard.classfile.visitor.*; |
| |
| /** |
| * This Constant represents a string constant in the constant pool. |
| * |
| * @author Eric Lafortune |
| */ |
| public class StringConstant extends Constant |
| { |
| public int u2stringIndex; |
| |
| /** |
| * An extra field pointing to the referenced Clazz object, if this |
| * string is being used in Class.forName(), .class, or |
| * Class.getDeclaredField/Method constructs. |
| * This field is typically filled out by the <code>{@link |
| * proguard.classfile.util.DynamicClassReferenceInitializer |
| * DynamicClassReferenceInitializer}</code> or by the <code>{@link |
| * proguard.classfile.util.DynamicMemberReferenceInitializer |
| * DynamicMemberReferenceInitializer}</code>. |
| */ |
| public Clazz referencedClass; |
| |
| /** |
| * An extra field pointing to the referenced Member object, if this |
| * string is being used in Class.getDeclaredField/Method constructs. |
| * This field is typically filled out by the <code>{@link |
| * proguard.classfile.util.DynamicMemberReferenceInitializer |
| * DynamicMemberReferenceInitializer}</code>. |
| */ |
| public Member referencedMember; |
| |
| /** |
| * An extra field pointing to the java.lang.String Clazz object. |
| * This field is typically filled out by the <code>{@link |
| * proguard.classfile.util.ClassReferenceInitializer |
| * ClassReferenceInitializer}</code>.. |
| */ |
| public Clazz javaLangStringClass; |
| |
| |
| /** |
| * Creates an uninitialized StringConstant. |
| */ |
| public StringConstant() |
| { |
| } |
| |
| |
| /** |
| * Creates a new StringConstant with the given string index. |
| * @param u2stringIndex the index of the string in the constant pool. |
| * @param referencedClass the referenced class, if any. |
| * @param referenceMember the referenced class member, if any. |
| */ |
| public StringConstant(int u2stringIndex, |
| Clazz referencedClass, |
| Member referenceMember) |
| { |
| this.u2stringIndex = u2stringIndex; |
| this.referencedClass = referencedClass; |
| this.referencedMember = referenceMember; |
| } |
| |
| |
| /** |
| * Returns the string value. |
| */ |
| public String getString(Clazz clazz) |
| { |
| return clazz.getString(u2stringIndex); |
| } |
| |
| |
| // Implementations for Constant. |
| |
| public int getTag() |
| { |
| return ClassConstants.CONSTANT_String; |
| } |
| |
| public void accept(Clazz clazz, ConstantVisitor constantVisitor) |
| { |
| constantVisitor.visitStringConstant(clazz, this); |
| } |
| |
| |
| /** |
| * Lets the referenced class accept the given visitor. |
| */ |
| public void referencedClassAccept(ClassVisitor classVisitor) |
| { |
| if (referencedClass != null && |
| referencedMember == null) |
| { |
| referencedClass.accept(classVisitor); |
| } |
| } |
| |
| |
| /** |
| * Lets the referenced member accept the given visitor. |
| */ |
| public void referencedMemberAccept(MemberVisitor memberVisitor) |
| { |
| if (referencedMember != null) |
| { |
| referencedMember.accept(referencedClass, memberVisitor); |
| } |
| } |
| } |