/* * 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. */ /* * This file is available under and governed by the GNU General Public * License version 2 only, as published by the Free Software Foundation. * However, the following notice accompanied the original version of this * file: * * ASM: a very small and fast Java bytecode manipulation framework * Copyright (c) 2000-2011 INRIA, France Telecom * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ package jdk.internal.org.objectweb.asm; /** * A reference to a field or a method. * * @author Remi Forax * @author Eric Bruneton */ public final class Handle { /** * The kind of field or method designated by this Handle. Should be * {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, * {@link Opcodes#H_PUTFIELD}, {@link Opcodes#H_PUTSTATIC}, * {@link Opcodes#H_INVOKEVIRTUAL}, {@link Opcodes#H_INVOKESTATIC}, * {@link Opcodes#H_INVOKESPECIAL}, {@link Opcodes#H_NEWINVOKESPECIAL} or * {@link Opcodes#H_INVOKEINTERFACE}. */ final int tag; /** * The internal name of the class that owns the field or method designated * by this handle. */ final String owner; /** * The name of the field or method designated by this handle. */ final String name; /** * The descriptor of the field or method designated by this handle. */ final String desc; /* * indicator of static method of interface */ final boolean intfs; /** * Constructs a new field or method handle. * * @param tag * the kind of field or method designated by this Handle. Must be * {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, * {@link Opcodes#H_PUTFIELD}, {@link Opcodes#H_PUTSTATIC}, * {@link Opcodes#H_INVOKEVIRTUAL}, * {@link Opcodes#H_INVOKESTATIC}, * {@link Opcodes#H_INVOKESPECIAL}, * {@link Opcodes#H_NEWINVOKESPECIAL} or * {@link Opcodes#H_INVOKEINTERFACE}. * @param owner * the internal name of the class that owns the field or method * designated by this handle. * @param name * the name of the field or method designated by this handle. * @param desc * the descriptor of the field or method designated by this * handle. */ public Handle(int tag, String owner, String name, String desc) { this.tag = tag; this.owner = owner; this.name = name; this.desc = desc; this.intfs = false; } /** * Returns the kind of field or method designated by this handle. * * @return {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, /** * Constructs a new field or method handle. * * @param tag * the kind of field or method designated by this Handle. Must be * {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, * {@link Opcodes#H_PUTFIELD}, {@link Opcodes#H_PUTSTATIC}, * {@link Opcodes#H_INVOKEVIRTUAL}, * {@link Opcodes#H_INVOKESTATIC}, * {@link Opcodes#H_INVOKESPECIAL}, * {@link Opcodes#H_NEWINVOKESPECIAL} or * {@link Opcodes#H_INVOKEINTERFACE}. * @param owner * the internal name of the class that owns the field or method * designated by this handle. * @param name * the name of the field or method designated by this handle. * @param desc * the descriptor of the field or method designated by this * handle. * @param intfs * the indicator of static method in interface */ public Handle(int tag, String owner, String name, String desc, boolean intfs) { this.tag = tag; this.owner = owner; this.name = name; this.desc = desc; this.intfs = (tag == Opcodes.H_INVOKESTATIC) && intfs; } /** * Returns the kind of field or method designated by this handle. * * @return {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, * {@link Opcodes#H_PUTFIELD}, {@link Opcodes#H_PUTSTATIC}, * {@link Opcodes#H_INVOKEVIRTUAL}, {@link Opcodes#H_INVOKESTATIC}, * {@link Opcodes#H_INVOKESPECIAL}, * {@link Opcodes#H_NEWINVOKESPECIAL} or * {@link Opcodes#H_INVOKEINTERFACE}. */ public int getTag() { return tag; } /** * Returns the internal name of the class that owns the field or method * designated by this handle. * * @return the internal name of the class that owns the field or method * designated by this handle. */ public String getOwner() { return owner; } /** * Returns the name of the field or method designated by this handle. * * @return the name of the field or method designated by this handle. */ public String getName() { return name; } /** * Returns the descriptor of the field or method designated by this handle. * * @return the descriptor of the field or method designated by this handle. */ public String getDesc() { return desc; } /** * Return if it is pointing to interface static method */ public boolean getIntfs() { return intfs; } @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof Handle)) { return false; } Handle h = (Handle) obj; return tag == h.tag && owner.equals(h.owner) && name.equals(h.name) && desc.equals(h.desc); } @Override public int hashCode() { return tag + owner.hashCode() * name.hashCode() * desc.hashCode(); } /** * Returns the textual representation of this handle. The textual * representation is: * * 
     * owner '.' name desc ' ' '(' tag ')'
     *
* * . As this format is unambiguous, it can be parsed if necessary. */ @Override public String toString() { return owner + '.' + name + desc + " (" + tag + ')'; } }