src/jdk.jdeps/share/classes/com/sun/tools/jdeprscan/scan/CPSelector.java

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.tools.jdeprscan.scan;

import com.sun.tools.classfile.ConstantPool;
import com.sun.tools.classfile.ConstantPool.CONSTANT_Dynamic_info;

/**
 * A visitor that selects constant pool entries by type and adds
 * them to the given CPEntries object.
 */
class CPSelector implements ConstantPool.Visitor<Void,CPEntries> {
    @Override
    public Void visitClass(ConstantPool.CONSTANT_Class_info info, CPEntries p) {
        p.classes.add(info);
        return null;
    }

    @Override
    public Void visitDouble(ConstantPool.CONSTANT_Double_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitFieldref(ConstantPool.CONSTANT_Fieldref_info info, CPEntries p) {
        p.fieldRefs.add(info);
        return null;
    }

    @Override
    public Void visitFloat(ConstantPool.CONSTANT_Float_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitInteger(ConstantPool.CONSTANT_Integer_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitInterfaceMethodref(ConstantPool.CONSTANT_InterfaceMethodref_info info, CPEntries p) {
        p.intfMethodRefs.add(info);
        return null;
    }

    @Override
    public Void visitInvokeDynamic(ConstantPool.CONSTANT_InvokeDynamic_info info, CPEntries p) {
        return null;
    }

    public Void visitDynamicConstant(CONSTANT_Dynamic_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitLong(ConstantPool.CONSTANT_Long_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitMethodref(ConstantPool.CONSTANT_Methodref_info info, CPEntries p) {
        p.methodRefs.add(info);
        return null;
    }

    @Override
    public Void visitMethodHandle(ConstantPool.CONSTANT_MethodHandle_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitMethodType(ConstantPool.CONSTANT_MethodType_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitModule(ConstantPool.CONSTANT_Module_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitNameAndType(ConstantPool.CONSTANT_NameAndType_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitPackage(ConstantPool.CONSTANT_Package_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitString(ConstantPool.CONSTANT_String_info info, CPEntries p) {
        return null;
    }

    @Override
    public Void visitUtf8(ConstantPool.CONSTANT_Utf8_info info, CPEntries p) {
        return null;
    }
}