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 * This code is free software; you can redistribute it and/or modify it
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/*
 * 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.
 *
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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package jdk.internal.org.objectweb.asm;

A reference to a field or a method.
Author:Remi Forax, Eric Bruneton
/** * 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}. */ private final int tag;
The internal name of the class that owns the field or method designated by this handle.
/** The internal name of the class that owns the field or method designated by this handle. */
private final String owner;
The name of the field or method designated by this handle.
/** The name of the field or method designated by this handle. */
private final String name;
The descriptor of the field or method designated by this handle.
/** The descriptor of the field or method designated by this handle. */
private final String descriptor;
Whether the owner is an interface or not.
/** Whether the owner is an interface or not. */
private final boolean isInterface;
Constructs a new field or method handle.
Params:
Deprecated:this constructor has been superseded by Handle(int, String, String, String, boolean).
/** * 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 descriptor the descriptor of the field or method designated by this handle. * @deprecated this constructor has been superseded by {@link #Handle(int, String, String, String, * boolean)}. */
@Deprecated public Handle(final int tag, final String owner, final String name, final String descriptor) { this(tag, owner, name, descriptor, tag == Opcodes.H_INVOKEINTERFACE); }
Constructs a new field or method handle.
Params:
/** * 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 descriptor the descriptor of the field or method designated by this handle. * @param isInterface whether the owner is an interface or not. */
public Handle( final int tag, final String owner, final String name, final String descriptor, final boolean isInterface) { this.tag = tag; this.owner = owner; this.name = name; this.descriptor = descriptor; this.isInterface = isInterface; }
Returns the kind of field or method designated by this handle.
Returns:Opcodes.H_GETFIELD, Opcodes.H_GETSTATIC, Opcodes.H_PUTFIELD, Opcodes.H_PUTSTATIC, Opcodes.H_INVOKEVIRTUAL, Opcodes.H_INVOKESTATIC, Opcodes.H_INVOKESPECIAL, Opcodes.H_NEWINVOKESPECIAL or Opcodes.H_INVOKEINTERFACE.
/** * 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.
Returns:the internal name of the class that owns the field or method designated by this handle.
/** * 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.
Returns:the name of the field or method designated by this handle.
/** * 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.
Returns:the descriptor of the field or method designated by this handle.
/** * 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 descriptor; }
Returns true if the owner of the field or method designated by this handle is an interface.
Returns:true if the owner of the field or method designated by this handle is an interface.
/** * Returns true if the owner of the field or method designated by this handle is an interface. * * @return true if the owner of the field or method designated by this handle is an interface. */
public boolean isInterface() { return isInterface; } @Override public boolean equals(final Object object) { if (object == this) { return true; } if (!(object instanceof Handle)) { return false; } Handle handle = (Handle) object; return tag == handle.tag && isInterface == handle.isInterface && owner.equals(handle.owner) && name.equals(handle.name) && descriptor.equals(handle.descriptor); } @Override public int hashCode() { return tag + (isInterface ? 64 : 0) + owner.hashCode() * name.hashCode() * descriptor.hashCode(); }
Returns the textual representation of this handle. The textual representation is:
  • for a reference to a class: owner "." name descriptor " (" tag ")",
  • for a reference to an interface: owner "." name descriptor " (" tag " itf)".
/** * Returns the textual representation of this handle. The textual representation is: * * <ul> * <li>for a reference to a class: owner "." name descriptor " (" tag ")", * <li>for a reference to an interface: owner "." name descriptor " (" tag " itf)". * </ul> */
@Override public String toString() { return owner + '.' + name + descriptor + " (" + tag + (isInterface ? " itf" : "") + ')'; } }